KGGW [090207]: Preliminary Local Storm Report

NWUS55 KGGW 090207
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
807 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0805 PM HEAVY RAIN 14 NNW SAND SPRINGS 47.27N 107.63W
09/08/2013 M1.20 INCH GARFIELD MT TRAINED SPOTTER

RAIN FELL FROM 715PM TO 805PM.


&&

$$

ASCHNETZ

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KUNR [090207]: Preliminary Local Storm Report

NWUS53 KUNR 090207
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
807 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0740 PM TSTM WND GST 12 SSE DOWNTOWN NEWCAST 43.70N 104.13W
09/08/2013 E60.00 MPH WESTON WY TRAINED SPOTTER

0740 PM TSTM WND DMG 12 SSE DOWNTOWN NEWCAST 43.70N 104.13W
09/08/2013 WESTON WY TRAINED SPOTTER

TWO MEDIUM SIZED TREES BLOWN DOWN. ABOUT 15 TO 20 FEET
TALL AND 4 TO 5 INCH DIAMETER TRUNKS.


&&

$$

SRUDGE

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KTFX [090140]: Preliminary Local Storm Report

NWUS55 KTFX 090140
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
740 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0200 PM HAIL STOCKETT 47.36N 111.16W
09/08/2013 M2.00 INCH CASCADE MT PUBLIC

SOCIAL MEDIA REPORT SHOWS HAIL 2 INCHES IN DIAMTER
SOUTHEAST OF STOCKETT.


&&

$$

NJL

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KGGW [090134]: Preliminary Local Storm Report

NWUS55 KGGW 090134
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
734 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0700 PM TSTM WND GST 14 NE CAT CREEK 47.20N 107.78W
09/08/2013 E40.00 MPH GARFIELD MT TRAINED SPOTTER

0715 PM TSTM WND GST 14 NNW SAND SPRINGS 47.27N 107.63W
09/08/2013 E40.00 MPH GARFIELD MT TRAINED SPOTTER

0716 PM HEAVY RAIN 5 NNE WINNETT 47.08N 108.32W
09/08/2013 M0.77 INCH PETROLEUM MT TRAINED SPOTTER

RAIN FELL WITHIN 1 HOUR.


&&

$$

ASCHNETZ

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KUNR [090129]: Preliminary Local Storm Report

NWUS53 KUNR 090129
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
729 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0725 PM TSTM WND GST 14 SW DOWNTOWN NEWCASTL 43.71N 104.40W
09/08/2013 E65 MPH WESTON WY TRAINED SPOTTER


&&

$$

KCLARK

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KTFX [090127]: Preliminary Local Storm Report

NWUS55 KTFX 090127
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
727 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0345 PM HAIL COFFEE CREEK 47.35N 110.09W
09/08/2013 U0.00 INCH FERGUS MT TRAINED SPOTTER

A FEW WINDOWS BROKEN FROM HAIL. LEAVES STRIPPED FROM
TREES.


&&

$$

NJL

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KUNR [090126]: Preliminary Local Storm Report

NWUS53 KUNR 090126
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
726 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0710 PM HAIL PINE HAVEN 44.35N 104.81W
09/08/2013 E0.75 INCH CROOK WY CO-OP OBSERVER

WIND GUSTS TO 35 MPH.


&&

$$

SRUDGE

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KVEF [090124]: Preliminary Local Storm Report...corrected

NWUS55 KVEF 090124
LSRVEF

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
624 PM PDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0552 PM FLASH FLOOD 3 E PANAMINT SPRINGS 36.34N 117.42W
09/08/2013 INYO CA LAW ENFORCEMENT

CALIFORNIA HIGHWAY PATROL REPORTED SEVERAL VEHICLES STUCK
IN FLOODWATERS AT HIGHWAY 190 AND PANAMINT VALLEY ROAD
DUE TO MUD AND ROCKS ON THE ROAD. AT 619 PM ONE MILE OF
THE ROADWAY WAS REPORTED WASHED OUT WITH DEBRIS AND
ROCKS.


&&
SENT TO ADD YET MORE INFORMATION FROM CHP.
$$

STACHELSKI

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KVEF [090108]: Preliminary Local Storm Report...corrected

NWUS55 KVEF 090108
LSRVEF

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
608 PM PDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0552 PM FLASH FLOOD 3 E PANAMINT SPRINGS 36.34N 117.42W
09/08/2013 INYO CA LAW ENFORCEMENT

CALIFORNIA HIGHWAY PATROL REPORTED SEVERAL VEHICLES STUCK
IN FLOODWATERS AT HIGHWAY 190 AND PANAMINT VALLEY ROAD
DUE TO MUD AND ROCKS ON THE ROAD.


&&
UPDATED TO ADD MORE INFORMATION FROM CHP.
$$

STACHELSKI

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KVEF [090104]: Preliminary Local Storm Report

NWUS55 KVEF 090104
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
604 PM PDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0552 PM FLASH FLOOD 3 E PANAMINT SPRINGS 36.34N 117.42W
09/08/2013 INYO CA LAW ENFORCEMENT

CALIFORNIA HIGHWAY PATROL REPORTED A VEHICLE STUCK IN
FLOODWATERS AT HIGHWAY 190 AND PANAMINT VALLEY ROAD.


&&

$$

STACHELSKI

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KCYS [090102]: Preliminary Local Storm Report

NWUS55 KCYS 090102
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
702 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0701 PM TSTM WND GST DULL CENTER 43.41N 104.96W
09/08/2013 E50 MPH CONVERSE WY TRAINED SPOTTER

WINDS 40 TO 50 MPH. HEAVY RAIN EASING NOW.


&&

$$

GCLAYCOM

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KTFX [090101]: Preliminary Local Storm Report

NWUS55 KTFX 090101
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
701 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0655 PM HEAVY RAIN 9 E FERDIG 48.78N 111.57W
09/08/2013 M1.55 INCH TOOLE MT TRAINED SPOTTER

0.95 INCHES IN LESS THAN AN HOUR THIS MORNING. 0.60
OVER A FEW HOURS THIS AFTERNOON.


&&

$$

NJL

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 090101
SWODY1
SPC AC 090058

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0758 PM CDT SUN SEP 08 2013

VALID 090100Z - 091200Z

...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE NORTHERN PLAINS...

...NORTHERN PLAINS...
EARLY EVENING WATER VAPOR IMAGERY REFLECTS AN EASTWARD-MOVING CLOSED
LOW OVER WESTERN MT...WITH LEADING HEIGHT FALLS AND STRENGTHENING
SOUTHWESTERLY FLOW ALOFT OVERSPREADING THE NORTHERN HIGH
PLAINS/DAKOTAS. FOR ONE...RELATIVELY ISOLATED TSTMS CAPABLE OF
HAIL/WIND MAY REMAIN POSSIBLE THIS EVENING ACROSS EASTERN MT INTO
WESTERN ND...ALTHOUGH A COOLING BOUNDARY LAYER SHOULD GRADUALLY
TEMPER THE VIGOR OF STORMS IN THESE AREAS. FOR ADDITIONAL
DETAILS...REFERENCE MESOSCALE DISCUSSION 1861.

FARTHER EAST-SOUTHEAST...A RELATIVELY MORE CERTAIN/SUSTAINED SEVERE
WEATHER RISK WILL LIKELY EXIST TONIGHT FROM FAR NORTHEAST WY INTO
WESTERN/NORTHERN PORTIONS OF SD AND FAR SOUTHERN ND. STORM MERGERS
APPEAR TO BE LEADING TO UPSCALE QUASI-LINEAR DEVELOPMENT EARLY THIS
EVENING NEAR THE WY AND SD BORDER /AS OF 01Z/. A NOCTURNALLY
INCREASING/VEERING LOW LEVEL JET SHOULD LEAD TO INCREASING STORM
COVERAGE THE REMAINDER OF THE NIGHT INCLUDING POSSIBLE MCS
SUSTENANCE ACROSS AFOREMENTIONED PORTIONS OF SD/ND AND EVENTUALLY
MN. DAMAGING WINDS/SEVERE HAIL WILL REMAIN A POSSIBILITY
TONIGHT...ALTHOUGH EXISTING CLOUD COVER/BOUNDARY LAYER CINH COULD
SOMEWHAT TEMPER THE DAMAGING WIND RISK EVEN AS A
SEMI-ORGANIZED/SUSTAINED MCS OTHERWISE POTENTIALLY EVOLVES.

..GUYER.. 09/09/2013

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KGGW [090055]: Preliminary Local Storm Report

NWUS55 KGGW 090055
LSRGGW

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GLASGOW MT
655 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0615 PM HEAVY RAIN 9 S ZORTMAN 47.79N 108.52W
09/08/2013 M0.30 INCH PHILLIPS MT TRAINED SPOTTER

RAINFALL FELL WITHIN 20 MINUTES.

0616 PM TSTM WND GST 5 NNE WINNETT 47.08N 108.32W
09/08/2013 E50.00 MPH PETROLEUM MT TRAINED SPOTTER

0620 PM HEAVY RAIN NNW WINNETT 47.00N 108.35W
09/08/2013 E0.50 INCH PETROLEUM MT TRAINED SPOTTER

ESTIMATED UP TO 0.50 FELL WITHIN 15 MINUTES. PEA SIZED
HAIL MIXED IN WITH THE RAIN.


&&

$$

ASCHNETZ

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KVEF [090051]: Preliminary Local Storm Report

NWUS55 KVEF 090051
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
551 PM PDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0506 PM FLASH FLOOD 13 SE KEELER 36.33N 117.71W
09/08/2013 INYO CA LAW ENFORCEMENT

WATER AND DEBRIS COVERED HIGHWAY 190 BETWEEN SALINE
VALLEY ROAD AND PANAMINT SPRINGS.


&&

$$

STACHELSKI

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MESO: Mesoscale Discussion 1861

ACUS11 KWNS 090051
SWOMCD
SPC MCD 090050
MTZ000-090245-

MESOSCALE DISCUSSION 1861
NWS STORM PREDICTION CENTER NORMAN OK
0750 PM CDT SUN SEP 08 2013

AREAS AFFECTED...PORTIONS OF SRN/CENTRAL/ERN MT

CONCERNING...SEVERE THUNDERSTORM WATCH 516...

VALID 090050Z - 090245Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 516
CONTINUES.

SUMMARY...BROKEN LINE OF STORMS CONTINUES TO PROGRESS EWD TOWARD ERN
MT...WITH ONGOING/ISOLATED SEVERE RISK.

DISCUSSION...LATEST RADAR LOOP SHOWS AN ARCING/LOOSELY ORGANIZED
LINE OF STORMS CONTINUING EWD ACROSS CENTRAL/ERN MT...WITH THE
STRONGEST CONVECTION NOW AFFECTING MUSSELSHELL/PETROLEUM/WRN
GARFIELD COUNTIES. OTHER/ISOLATED STORMS ARE ALSO ONGOING ACROSS
SRN PORTIONS OF THE WW...AND ISOLATED SEVERE POTENTIAL CONTINUES
ACROSS THE VALID PORTIONS OF THE WATCH.

WITH TIME HOWEVER...STORMS SHOULD EXHIBIT A SLOW DECREASE IN
INTENSITY...DUE TO A COMBINATION OF THE LOSS OF DIURNAL HEATING AND
STORMS SHIFTING E OF THE AXIS OF GREATER INSTABILITY. AS SUCH...THE
NEED FOR AN ADDITIONAL WW E OF THE CURRENT WATCH INTO E CENTRAL AND
NERN MT APPEARS UNNECESSARY ATTM. IN THE MEAN TIME...THREAT FOR
MARGINALLY SEVERE HAIL AND/OR WIND GUSTS SHOULD PERSIST OVER THE
NEXT 1-2 HOURS WITH THE STRONGEST STORMS.

..GOSS.. 09/09/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...BYZ...GGW...TFX...

LAT...LON 48400785 48200699 47560659 45180661 45000951 45770997
46590898 46920843 47620812 48110867 48400785

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WATCHES: Severe Thunderstorm Watch Number 517

WWUS20 KWNS 090049
SEL7
SPC WW 090049
MTZ000-NDZ000-SDZ000-WYZ000-090700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 517
NWS STORM PREDICTION CENTER NORMAN OK
645 PM MDT SUN SEP 8 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEASTERN MONTANA
SOUTHWESTERN NORTH DAKOTA
NORTHWESTERN SOUTH DAKOTA
NORTHEASTERN WYOMING

* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 645 PM
UNTIL 100 AM MDT.

* PRIMARY THREATS INCLUDE...
SEVERAL DAMAGING WIND GUSTS WITH A FEW SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 3
INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES SOUTH OF
RAPID CITY SOUTH DAKOTA TO 30 MILES EAST NORTHEAST OF BAKER
MONTANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 516...

DISCUSSION...BKN BAND OF TSTMS MOVING NEWD OVER NERN WY AND EXTREME
SERN MT IS BECOMING BETTER ORGANIZED WHILE MOVING INTO FAVORABLY
MOIST AND AT LEAST MARGINALLY BUOYANT BOUNDARY LAYER...INDICATING
THAT INITIALLY ISOLATED SVR THREAT MAY INCREASE IN DENSITY. EXPECT
CONTINUING POTENTIAL FOR SVR HAIL...SUCH AS HAS BEEN OBSERVED WITH
CELL NEAR I-90 IN NERN WY...AND INCREASING WIND THREAT. BARELY
SUB-SVR/48-KT GUST HAS BEEN MEASURED WITH APPARENTLY LESS-ORGANIZED
PORTION OF LINE S OF WW AREA -- AT TOR -- WITHIN PAST HALF HOUR.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 26030.


...EDWARDS

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KCYS [090046]: Preliminary Local Storm Report

NWUS55 KCYS 090046
LSRCYS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
646 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0627 PM TSTM WND GST TORRINGTON 42.07N 104.18W
09/08/2013 M56 MPH GOSHEN WY ASOS

SUSTAINED AT 22 MPH. BLOWING DUST REPORTED BY SPOTTERS IN
TORRINGTON.


&&

$$

GCLAYCOM

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KFGZ [090041]: Preliminary Local Storm Report

NWUS55 KFGZ 090041
LSRFGZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
540 PM MST SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0405 PM HEAVY RAIN SUPAI 36.22N 112.69W
09/08/2013 U0.00 INCH COCONINO AZ LAW ENFORCEMENT

TRAILS FLOODED AND WASHED OUT. ONE BRIDGE FLOODED.
PORTIONS OF VILLAGE FLOODED.


&&

EVENT NUMBER FGZ1300089

$$

DJO

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KUNR [090037]: Preliminary Local Storm Report

NWUS53 KUNR 090037
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
637 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0630 PM HAIL 4 NW ROZET 44.32N 105.26W
09/08/2013 M4.25 INCH CAMPBELL WY TRAINED SPOTTER


&&

$$

KCLARK

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KUNR [090032]: Preliminary Local Storm Report

NWUS53 KUNR 090032
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
632 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0628 PM HAIL 5 NW ROZET 44.33N 105.27W
09/08/2013 M1.50 INCH CAMPBELL WY PUBLIC


&&

$$

KCLARK

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KTFX [090006]: Preliminary Local Storm Report

NWUS55 KTFX 090006
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
606 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0545 PM HAIL 3 NE GRASS RANGE 47.06N 108.76W
09/08/2013 E0.25 INCH FERGUS MT PUBLIC

PEA SIZE HAIL FALLING NORTHEAST OF GRASS RANGE.


&&

$$

BRUSDA

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KTFX [090005]: Preliminary Local Storm Report

NWUS55 KTFX 090005
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
604 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0400 PM HEAVY RAIN 7 E WHITLASH 48.89N 111.09W
09/08/2013 M1.00 INCH LIBERTY MT MESONET

ONE INCH OF RAINFALL SINCE NOON.


&&

$$

NJL

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KTFX [090003]: Preliminary Local Storm Report

NWUS55 KTFX 090003
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
603 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0400 PM HEAVY RAIN 18 ENE WHITLASH 48.96N 110.87W
09/08/2013 M1.32 INCH LIBERTY MT MESONET

1.32 INCHES OF RAINFALL TODAY


&&

$$

NJL

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KVEF [090001]: Preliminary Local Storm Report

NWUS55 KVEF 090001
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
501 PM PDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0430 PM TSTM WND GST 1 SSE BJY TOWER (NTS A1 37.06N 116.05W
09/08/2013 M67 MPH NYE NV MESONET


&&

$$

JH

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KUNR [082332]: Preliminary Local Storm Report

NWUS53 KUNR 082332
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
532 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0520 PM HAIL WSW DOWNTOWN GILLETTE 44.29N 105.50W
09/08/2013 E1.00 INCH CAMPBELL WY PUBLIC

ALONG I-90 NEAR MM 106. STRONG WINDS...NO ESTIMATE ON
WIND SPEED.


&&

$$

WFO UNR

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KUNR [082323]: Preliminary Local Storm Report

NWUS53 KUNR 082323
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
523 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0515 PM HAIL 2 N DOWNTOWN RAPID CITY 44.11N 103.23W
09/08/2013 M1.50 INCH PENNINGTON SD NWS EMPLOYEE


&&

$$

KCLARK

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KPIH [082313]: Preliminary Local Storm Report

NWUS55 KPIH 082313
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
509 PM MDT SUN SEP 08 2013...CORRECTION

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM FLASH FLOOD 6 S POCATELLO 42.86N 112.47W
09/08/2013 BANNOCK ID PUBLIC

REPORT OF SIGNIFICANT FLASH FLOOD AND A MUD SLIDE AT
BANNOCK HIGHWAY AND MINK CREEK SOUTH OF TOWN.


&&

$$

PANGEL

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KPIH [082310]: Preliminary Local Storm Report

NWUS55 KPIH 082310
LSRPIH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE POCATELLO
509 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0500 PM FLASH FLOOD 1 S POCATELLO 42.86N 112.47W
09/08/2013 BANNOCK ID PUBLIC

REPORT OF SIGNIFICANT FLASH FLOOD AND A MUD SLIDE AT
BANNOCK HIGHWAY AND MINK CREEK SOUTH OF TOWN.


&&

$$

PANGEL

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MESO: Mesoscale Discussion 1860

ACUS11 KWNS 082249
SWOMCD
SPC MCD 082249
MTZ000-090045-

MESOSCALE DISCUSSION 1860
NWS STORM PREDICTION CENTER NORMAN OK
0549 PM CDT SUN SEP 08 2013

AREAS AFFECTED...PARTS OF CENTRAL AND ERN MT

CONCERNING...SEVERE THUNDERSTORM WATCH 516...

VALID 082249Z - 090045Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 516
CONTINUES.

SUMMARY...ISOLATED SEVERE THREAT CONTINUES ACROSS CENTRAL MT...AND
IS SLOWLY SPREADING EWD WITH TIME.

DISCUSSION...A BROKEN LINE OF STRONG/POTENTIALLY SEVERE STORMS
CONTINUES TO EVOLVE ACROSS PARTS OF CENTRAL/N CENTRAL MT...FROM JUST
E OF HVR /HAVRE MT/ TO NEAR AND S OF LWT /LEWISTOWN MT/. THE
CONVECTION IS EVOLVING WITHIN A BAND OF ASCENT JUST AHEAD OF THE
NWRN MT UPPER CIRCULATION CENTER...WHERE A MODESTLY BUOYANT
ENVIRONMENT CHARACTERIZED BY MIXED-LAYER CAPE IN THE 500 TO 1000
J/KG RANGE EXISTS PER OBJECTIVE ANALYSES.

REPORTS OF LARGE HAIL HAVE BEEN RECEIVED FROM STORMS WITHIN THIS
BAND EARLIER...AND WHILE THREAT FOR HAIL CONTINUES...THE RISK FOR
LOCALLY DAMAGING WINDS APPEARS TO BE INCREASING LOCALLY AS
WELL...CORRESPONDING TO THE INCREASED LINEAR ORGANIZATION OF THE
STORMS. THOUGH EWD EXTENT OF THE MAIN AXIS OF INSTABILITY IS
LIMITED...SEVERE RISK IS EXPECTED FOR AT LEAST THE NEXT 2-3 HOURS AS
CONVECTION CONTINUES SHIFTING EWD.

..GOSS.. 09/08/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...BYZ...GGW...TFX...

LAT...LON 48760878 48780739 47560659 45180661 45000951 45651032
46631014 47190946 47840943 48660983 48760878

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KTFX [082238]: Preliminary Local Storm Report

NWUS55 KTFX 082238
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
438 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0438 PM HAIL 1 SSE WINIFRED 47.55N 109.37W
09/08/2013 E0.50 INCH FERGUS MT TRAINED SPOTTER


&&

$$

NJL

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KUNR [082238]: Preliminary Local Storm Report

NWUS53 KUNR 082238
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
438 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0434 PM HAIL 3 N JOHNSON SIDING 44.13N 103.43W
09/08/2013 M1.25 INCH PENNINGTON SD TRAINED SPOTTER


&&

$$

KCLARK

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KPSR [082231]: Preliminary Local Storm Report

NWUS55 KPSR 082231
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
331 PM MST SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0315 PM TSTM WND DMG 4 ESE BLYTHE AIRPORT 33.59N 114.66W
09/08/2013 RIVERSIDE CA LAW ENFORCEMENT

POWER POLES DOWN NEAR SR 78 AND 16TH AVE


&&

EVENT NUMBER PSR1300204

$$

LEINS

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KTFX [082224]: Preliminary Local Storm Report

NWUS55 KTFX 082224
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
424 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0356 PM TSTM WND GST 5 ESE DENTON 47.30N 109.85W
09/08/2013 M52 MPH FERGUS MT DEPT OF HIGHWAYS


&&

$$

NJL

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KTFX [082216]: Preliminary Local Storm Report

NWUS55 KTFX 082216
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
416 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0415 PM HAIL 4 W SUFFOLK 47.47N 109.43W
09/08/2013 E0.70 INCH FERGUS MT TRAINED SPOTTER

ESTIMATED HAIL UP TO DIME SIZE AND WIND GUSTS AROUND 45
MPH.


&&

$$

BRUSDA

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KUNR [082202]: Preliminary Local Storm Report

NWUS53 KUNR 082202
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
402 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0400 PM HAIL 1 NW PIEDMONT 44.24N 103.41W
09/08/2013 E1.50 INCH MEADE SD NWS EMPLOYEE

0400 PM HAIL PIEDMONT 44.23N 103.40W
09/08/2013 E1.75 INCH MEADE SD TRAINED SPOTTER


&&

$$

WFO UNR

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KPSR [082201]: Preliminary Local Storm Report

NWUS55 KPSR 082201
LSRPSR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PHOENIX AZ
301 PM MST SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0229 PM FLASH FLOOD 15 N MIDLAND 34.08N 114.82W
09/08/2013 SAN BERNARDINO CA LAW ENFORCEMENT

CHP REPORTS 20 VEHICLES ALONG CA-62 TRAPPED IN FLASH
FLOOD NEAR RICE


&&

EVENT NUMBER PSR1300203

$$

WATERS

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KUNR [082158]: Preliminary Local Storm Report

NWUS53 KUNR 082158
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
358 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0356 PM HAIL 1 NW PIEDMONT 44.24N 103.41W
09/08/2013 E1.25 INCH MEADE SD NWS EMPLOYEE


&&

$$

WFO UNR

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MESO: Mesoscale Discussion 1859

ACUS11 KWNS 082152
SWOMCD
SPC MCD 082152
SDZ000-NDZ000-MTZ000-WYZ000-090015-

MESOSCALE DISCUSSION 1859
NWS STORM PREDICTION CENTER NORMAN OK
0452 PM CDT SUN SEP 08 2013

AREAS AFFECTED...PORTIONS OF SERN MT...CNTRL/SRN ND...WRN/CNTRL
SD...NERN/E-CNTRL WY

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 082152Z - 090015Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...AT LEAST ISOLATED SVR THUNDERSTORMS COULD OCCUR ACROSS
PARTS OF THE DAKOTAS AND ADJACENT MT/WY INTO THE EVENING HOURS...AND
CONVECTIVE TRENDS WILL BE MONITORED FOR POSSIBLE WW ISSUANCE.

DISCUSSION...WATER VAPOR IMAGERY SUGGESTS THAT LITTLE IN THE WAY OF
DEEP FORCING FOR ASCENT WILL BE PRESENT WITHIN A BROAD RIBBON OF
ENHANCED MID-LEVEL MOISTURE CRESTING A CNTRL-CONUS RIDGE. ALSO...SFC
OBSERVATIONS REVEAL LIMITED CONVERGENCE AMIDST A WEAK-FLOW PATTERN
WITHIN A RELATIVELY MOIST -- ALBEIT NOT PARTICULARLY WARM -- AIR
MASS LOCATED N OF A WAVY...QUASI-STATIONARY FRONT ANALYZED FROM SRN
SD INTO THE NEB PANHANDLE AND ERN WY. THIS IS WHERE THE
JUXTAPOSITION OF SFC DEWPOINTS IN THE LOWER/MIDDLE 60S WITH
TEMPERATURES IN THE MIDDLE 70S TO THE LOWER 80S BENEATH MODESTLY
STEEP MID-LEVEL LAPSE RATES IS SUPPORTING MODERATE INSTABILITY.
ABUNDANT AREAS OF MULTI-LAYERED CLOUDS HAVE LIMITED DIABATIC SFC
HEATING/DESTABILIZATION...AND THERE IS SUBSTANTIAL UNCERTAINTY
REGARDING THE COVERAGE OF ROBUST CONVECTIVE DEVELOPMENT AND
ASSOCIATED SVR POTENTIAL.

REGARDLESS...SUFFICIENT LOW-LEVEL ASCENT COULD EXIST INVOF
ILL-DEFINED BOUNDARIES/WIND-SHIFT AXES/TERRAIN-DRIVEN
CIRCULATIONS -- E.G. A WIND-SHIFT AXIS LYING FROM WRN ND TO
NERN WY -- FOR AT LEAST ISOLATED DEEP CONVECTION TO CONTINUE INTO
THE EVENING HOURS. ALSO...SOME UPTICK IN CONVECTION MAY OCCUR IN
ASSOCIATION WITH INCREASING ASCENT WITHIN THE EXIT-REGION OF A
NOCTURNALLY STRENGTHENING LOW-LEVEL JET STREAM OVER THE LOWER PLAINS
LATER THIS EVENING. GIVEN THE PRESENCE OF 30-50 KT OF MID-LEVEL FLOW
PER AREA VWP DATA...DEEP SHEAR MAY BE SUFFICIENT FOR A FEW
SUSTAINED/ORGANIZED CONVECTIVE STRUCTURES...WHICH COULD ALSO SPREAD
E OF ONGOING WW 516. A CONDITIONAL POTENTIAL FOR SVR WIND/HAIL MAY
OCCUR WITH SUCH ACTIVITY...THOUGH INCREASING NOCTURNAL
BOUNDARY-LAYER CINH MAY REDUCE ANY SVR WIND THREAT WITH TIME INTO
THE EVENING HOURS.

..COHEN/EDWARDS.. 09/08/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...FGF...ABR...BIS...UNR...CYS...BYZ...GGW...RIW...

LAT...LON 43820070 42850475 42830599 43450649 44740614 46630567
47310340 48180119 47759940 45669858 43820070

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KTFX [082145]: Preliminary Local Storm Report

NWUS55 KTFX 082145
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
345 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0323 PM HAIL N COFFEE CREEK 47.35N 110.08W
09/08/2013 M1.00 INCH FERGUS MT TRAINED SPOTTER

QUARTER SIZED HAIL IN COFFEE CREEK. LEAVES STRIPPED OFF
TREES.


&&

$$

NJL

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KUNR [082140]: Preliminary Local Storm Report

NWUS53 KUNR 082140
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
340 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0330 PM HAIL 3 WNW NEMO 44.21N 103.55W
09/08/2013 M1.00 INCH LAWRENCE SD TRAINED SPOTTER


&&

$$

KCLARK

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KMPX [082113]: Preliminary Local Storm Report

NWUS53 KMPX 082113
LSRMPX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
412 PM CDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0300 PM HEAVY RAIN LITTLE FALLS 45.98N 94.36W
09/08/2013 M3.50 INCH MORRISON MN TRAINED SPOTTER

RAIN OCCURRED FROM 0650 LST TO 1200 LST...THEN RESTARTED
FROM 1300 LST TO 1500 LST. OBSERVER NOTED SOME PONDING OF
WATER ON AREA FARMLAND.


&&

$$

AJZ

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KFGZ [082040]: Preliminary Local Storm Report

NWUS55 KFGZ 082040
LSRFGZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
139 PM MST SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1200 PM HEAVY RAIN FLAGSTAFF 35.19N 111.62W
09/08/2013 U0.00 INCH COCONINO AZ NWS EMPLOYEE

URBAN STREET FLOODING WITH REPORTS OF WATER AND MUD ON
SOUTH MILTON RD.


&&

EVENT NUMBER FGZ1300088

$$

MCS

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KBIS [082017]: Preliminary Local Storm Report

NWUS53 KBIS 082017
LSRBIS

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
317 PM CDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0316 PM HEAVY RAIN RHAME 46.23N 103.66W
09/08/2013 M5.25 INCH BOWMAN ND PUBLIC

24 HOUR RAINFALL TOTAL. PUBLIC REPORT RELAYED BY
BROADCAST MEDIA.


&&

$$

RPK

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MESO: Mesoscale Discussion 1858

ACUS11 KWNS 082012
SWOMCD
SPC MCD 082012
MOZ000-KSZ000-082215-

MESOSCALE DISCUSSION 1858
NWS STORM PREDICTION CENTER NORMAN OK
0312 PM CDT SUN SEP 08 2013

AREAS AFFECTED...KS...MO

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 082012Z - 082215Z

PROBABILITY OF WATCH ISSUANCE...20 PERCENT

SUMMARY...ISOLATED INTENSE TSTMS WITH SOME POSSIBILITY OF DOWNBURST
WINDS AND MARGINAL HAIL MAY DRIFT SOUTH ALONG THE MO/KS BORDER IN
THE VICINITY OF KANSAS CITY OVER THE NEXT COUPLE OF HOURS. STORM
COVERAGE/DURATION MAY NOT RISE TO THE LEVEL WHERE A WATCH IS NEEDED
BUT THE AREA WILL CONTINUE TO BE MONITORED.

DISCUSSION...ISOLATED DEVELOPMENT NEAR STJ OVER THE PAST HOUR OR SO
APPEARS TO BE THE RESULT OF INTENSE SURFACE HEATING CONTRIBUTING TO
LOCAL REMOVAL OF STRONG CAPPING INVERSION AND PERHAPS GLANCING
INFLUENCE FROM REMNANT MCV ACROSS ERN MO. WITH SURFACE TEMPERATURES
ACROSS ERN KS AND THE MKC AREA CLIMBING INTO THE 100-105F
RANGE...MOST INHIBITION EXHIBITED ON MORNING SOUNDING FROM TOP IS
REMOVED AND MLCAPE VALUES BECOME QUITE HIGH AROUND 3000 J/KG. WITH
40F SFC DEWPOINT DEPRESSIONS AND DCAPE VALUES IN EXCESS OF 1000
J/KG...ANY CONVECTIVE DEVELOPMENT WILL POSE A THREAT FOR DAMAGING
DOWNBURST WINDS. GREATEST LIMITATION IN STORM DEVELOPMENT AND
COVERAGE WILL LIKELY BE THE LACK OF STRONGER LARGE SCALE FORCING AND
SHEAR GIVEN THE REGION LIES ALMOST DIRECTLY BENEATH STRONG
ANTICYCLONE WITH MID-LEVEL WINDS AOB 15KT AND WEAKENING.
THUS...EXPECT ANY ADDITIONAL DEVELOPMENT DRIVEN BY DIURNAL HEATING
CYCLE TO REMAIN QUITE ISOLATED AND SHORT-LIVED AND A WATCH DOES NOT
APPEAR NEEDED FOR THIS ACTIVITY.

..CARBIN/MEAD.. 09/08/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...EAX...TOP...

LAT...LON 39399405 39089400 38739410 38699474 38779510 38949537
39199577 39319580 39499582 39719543 39739502 39399405

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KTFX [082006]: Preliminary Local Storm Report

NWUS55 KTFX 082006
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
206 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0203 PM HAIL 5 ESE STOCKETT 47.34N 111.05W
09/08/2013 M1.50 INCH CASCADE MT TRAINED SPOTTER

PING PONG SIZED HAIL.


&&

$$

NJL

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KEAX [082005]: Preliminary Local Storm Report

NWUS53 KEAX 082005
LSREAX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
305 PM CDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0245 PM TSTM WND GST 4 W ST. JOSEPH 39.77N 94.92W
09/08/2013 M56 MPH BUCHANAN MO ASOS


&&

$$

BOOKBINDER

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KTFX [081959]: Preliminary Local Storm Report

NWUS55 KTFX 081959
LSRTFX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
159 PM MDT SUN SEP 08 2013

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

0150 PM HAIL 4 ESE STOCKETT 47.34N 111.08W
09/08/2013 M1.75 INCH CASCADE MT TRAINED SPOTTER

GOLF BALL SIZED HAIL AND 35 MPH WIND.


&&

$$

NJL

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DAY1SVR: Day 1 Convective Outlook

ACUS01 KWNS 081950
SWODY1
SPC AC 081948

DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0248 PM CDT SUN SEP 08 2013

VALID 082000Z - 091200Z

...THERE IS A SLGT RISK OF SVR TSTMS FROM PARTS OF MT/WY EWD INTO
PORTIONS OF THE DAKOTAS...

PREVIOUS FORECAST REASONING ACROSS THE SLGT RISK AREA APPEARS TO BE
ON TRACK...ONLY MINOR CHANGES HAVE BEEN MADE TO THE SEVERE WEATHER
PROBABILITIES. FOR SHORT-TERM DETAILS REGARDING THE EVOLVING SEVERE
WEATHER THREAT OVER PARTS OF MT/WY...REFER TO MCD 1857 AND WW 516.
OTHERWISE...STORMS ARE FORECAST TO INCREASE IN COVERAGE LATE THIS
AFTERNOON INTO THE NIGHT OVER NERN WY AND SD AS SURFACE LOW PRESSURE
DEEPENS AND THE EXIT REGION OF A 40+ KT LLJ SETS UP OVER THE AREA.
SUPERCELLS AND LARGE HAIL WILL BE POSSIBLE INITIALLY...WITH STORM
MERGERS GIVING WAY TO UPSCALE GROWTH INTO AN MCS...WHICH MAY YIELD A
CORRIDOR OF ENHANCED DAMAGING WIND POTENTIAL.

FARTHER SE...CLUSTERS OF STORMS WILL BE POSSIBLE THROUGH THIS
EVENING FROM STJ IN NWRN MO/NERN KS INTO THE MID-SOUTH REGION /AHEAD
OF AN MCV LOCATED SE OF STL/. BEST POTENTIAL FOR STRONG/SEVERE WIND
GUSTS WILL BE WHERE HOT TEMPERATURES/STEEP LOW-LEVEL LAPSE RATES ARE
COLLOCATED WITH A HIGH PW AIRMASS. MARGINAL SEVERE THREAT SHOULD
DIMINISH THIS EVENING.

..GARNER.. 09/08/2013

.PREV DISCUSSION... /ISSUED 1108 AM CDT SUN SEP 08 2013/

...SYNOPSIS...

AN UPPER HIGH CENTERED OVER THE CNTRL PLAINS WILL SHIFT EWD INTO THE
OZARKS IN RESPONSE TO THE EWD PROGRESSION OF AN UPPER LOW FROM THE
NRN INTERMOUNTAIN REGION INTO THE NRN HIGH PLAINS. THIS PATTERN
EVOLUTION WILL RESULT IN STRENGTHENING LARGE-SCALE FORCING FOR
ASCENT AND MID AND UPPER-LEVEL FLOW FROM THE NRN HIGH PLAINS TOWARD
UPPER MS VALLEY.

IN THE LOW LEVELS...A LEE CYCLONE OVER NWRN NEB WILL DEEPEN WHILE
DEVELOPING INTO NERN SD BY 9/12Z. AN ASSOCIATED SURFACE FRONT
CURRENTLY EXTENDING FROM THE LOW ESEWD THROUGH ERN NEB...SRN IA INTO
THE OH VALLEY WILL LIFT NWD IN RESPONSE TO A STRENGTHENING LOW-LEVEL
WAA REGIME DOWNSTREAM FROM THE MIGRATORY CYCLONE. MEANWHILE...A
DEVELOPING PACIFIC FRONT FROM THE NRN ROCKIES INTO GREAT BASIN WILL
ADVANCE EWD THROUGH WRN PARTS OF THE DAKOTAS AND NEB BY THE END OF
THE FORECAST PERIOD.

...PARTS OF MT/WY INTO THE DAKOTAS THIS AFTERNOON INTO TONIGHT...

12Z SOUNDINGS AND SATELLITE-DERIVED PW IMAGERY SHOW THE CONTINUED
PRESENCE OF A SEASONABLY MOIST AIR MASS INVOF OF STALLED SYNOPTIC
FRONT WITH BOUNDARY LAYER DEWPOINTS IN THE 60S TO LOWER 70S AND PW
VALUES OF 1.2-1.8 INCHES. DECREASING MORNING CLOUDINESS COUPLED
WITH THIS HIGH MOISTURE CONTENT AND STEEP MIDLEVEL LAPSE RATES WILL
YIELD A MODERATELY UNSTABLE ENVIRONMENT BY AFTERNOON WITH MLCAPE
VALUES RANGING FROM 1000-1500 J/KG OVER MT TO AS HIGH AS 2000-3000
J/KG ACROSS SD.

CONVECTIVE EVOLUTION WILL BE DICTATED TO SOME DEGREE BY THE AREAL
COVERAGE AND EXTENT OF LINGERING CLOUDS. BUT IN GENERAL...IT
APPEARS THAT HEATING ALONG THE ELEVATED TERRAIN OF MT...WY...AND WRN
SD...ALONG WITH INCREASING CONVERGENCE INVOF THE SYNOPTIC LOW AND
NWD-DEVELOPING WARM FRONT WILL BE THE PRIMARY FOCI FOR STRONG TO
SEVERE TSTM DEVELOPMENT THIS AFTERNOON INTO EVENING.

GIVEN THE PRESENCE OF A VERTICALLY VEERING WIND PROFILE AND
STRENGTHENING MID TO UPPER-LEVEL FLOW --AND RESULTANT VERTICAL
SHEAR-- INITIAL STORM MODE WILL LIKELY BE SUPERCELLULAR WITH A RISK
FOR LARGE HAIL...DAMAGING WINDS...AND PERHAPS A BRIEF TORNADO.
AGGREGATING STORM-SCALE COLD POOLS AND THE DEVELOPMENT OF A
NOCTURNAL LOW-LEVEL WIND MAXIMUM --WHICH WILL BE STRONGER AND
BROADER THAN PAST NIGHTS-- WILL SUPPORT UPSCALE GROWTH OF STORMS
INTO ONE OR MORE MCSS WITH THE RISK FOR DAMAGING WINDS AND HAIL
CONTINUING INTO TONIGHT...MAINLY ACROSS NRN SD/SRN ND.

...OZARKS THIS AFTERNOON INTO EARLY EVENING...

WEAK LOW-LEVEL WAA IS EXPECTED TO PERSIST TODAY...ENHANCING
INFLOW/ASCENT ALONG THE WRN FLANK OF NOCTURNAL MCS ONGOING ACROSS
PARTS OF CNTRL MO. THIS SHOULD SUPPORT REGENERATIVE STORM
DEVELOPMENT ON THE WRN END OF THE RESIDUAL MCS WHERE DAYTIME HEATING
AND BOUNDARY LAYER DEWPOINTS OF 65-70 F WILL PROMOTE MLCAPE
APPROACHING 1500-2500+ J/KG. VERTICAL SHEAR WILL REMAIN RATHER
WEAK...LIMITING THE POTENTIAL FOR STORM ORGANIZATION.
NONETHELESS...LOCALLY DAMAGING WIND GUSTS WILL BE POSSIBLE OWING TO
THE DEGREE OF INSTABILITY AND HIGH PW ENVIRONMENT.

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WATCHES: Severe Thunderstorm Watch Number 516

WWUS20 KWNS 081938
SEL6
SPC WW 081938
MTZ000-WYZ000-090300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 516
NWS STORM PREDICTION CENTER NORMAN OK
140 PM MDT SUN SEP 8 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN MONTANA
NORTH-CENTRAL WYOMING

* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 140 PM UNTIL
900 PM MDT.

* PRIMARY THREATS INCLUDE...
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTHEAST OF
LEWISTOWN MONTANA TO 60 MILES SOUTH SOUTHEAST OF BILLINGS
MONTANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

&&

DISCUSSION...SEVERE THUNDERSTORMS...INCLUDING SUPERCELLS AND BOWING
LINE SEGMENTS...ARE EXPECTED TO DEVELOP AND SPREAD EASTWARD ACROSS
THE WATCH AREA THIS AFTERNOON AND EVENING. LARGE HAIL AND DAMAGING
WIND GUSTS WILL BE THE PRIMARY HAZARDS WITH THESE STORMS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27020.


...MEAD

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