KLOT [160354]: Preliminary Local Storm Report

NWUS53 KLOT 160354
LSRLOT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1054 PM CDT WED AUG 15 2007

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

0900 PM HAIL CROWN POINT 41.42N 87.36W
08/15/2007 E0.75 INCH LAKE IN PUBLIC

THREE QUARTER INCH HAIL IN CROWN POINT

0900 PM TSTM WND DMG CROWN POINT 41.42N 87.36W
08/15/2007 LAKE IN PUBLIC

6 INCH DIAMETER TREE LIMBS DOWN WITH BROAD RANGING POWER
OUTAGES.

&&

$$

CGITRO

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KIWX [160346]: Preliminary Local Storm Report

NWUS53 KIWX 160346
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1146 PM EDT WED AUG 15 2007

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

1130 PM TSTM WND DMG CULVER 41.22N 86.42W
08/15/2007 MARSHALL IN EMERGENCY MNGR

NUMEROUS POWER LINES DOWNED

&&

$$

MCS

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KLOT [160344]: Preliminary Local Storm Report

NWUS53 KLOT 160344
LSRLOT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1044 PM CDT WED AUG 15 2007

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

0914 PM TSTM WND DMG HEBRON 42.47N 88.43W
08/15/2007 MCHENRY IL LAW ENFORCEMENT

TREES DOWN BLOCKING ROADS...WINDOWS BROKEN ON SOME HOUSES

&&

$$

CGITRO

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KIWX [160336]: Preliminary Local Storm Report

NWUS53 KIWX 160336
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1136 PM EDT WED AUG 15 2007

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

1123 PM TORNADO ARGOS 41.24N 86.25W
08/15/2007 MARSHALL IN LAW ENFORCEMENT

TORNADO TOUCHTOWN REPORTED

&&

$$

MCS

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KLOT [160335]: Preliminary Local Storm Report

NWUS53 KLOT 160335
LSRLOT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1035 PM CDT WED AUG 15 2007

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

0844 PM TSTM WND DMG SCHERERVILLE 41.49N 87.45W
08/15/2007 LAKE IN BROADCAST MEDIA

MANY TREES UPROOTED AND FENCES BROKEN

0931 PM HAIL 6 NW BOONE GROVE 41.42N 87.21W
08/15/2007 E1.25 INCH PORTER IN LAW ENFORCEMENT

HALF DOLLAR SIZE HAIL IN LAKE OF THE FOUR SEASONS

0931 PM TSTM WND DMG 6 NW BOONE GROVE 41.42N 87.21W
08/15/2007 PORTER IN LAW ENFORCEMENT

MULTIPLE TREES DOWN

0931 PM TSTM WND DMG N WHEATFIELD 41.19N 87.05W
08/15/2007 JASPER IN LAW ENFORCEMENT

LARGE TREES UPROOTED WITH SOME ON HOUSES

&&

$$

CGITRO

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KIWX [160333]: Preliminary Local Storm Report

NWUS53 KIWX 160333
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1133 PM EDT WED AUG 15 2007

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

1120 PM HAIL MONTEREY 41.16N 86.48W
08/15/2007 M1.50 INCH PULASKI IN EMERGENCY MNGR

&&

$$

MCS

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KIWX [160329]: Preliminary Local Storm Report

NWUS53 KIWX 160329
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1128 PM EDT WED AUG 15 2007

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

1127 PM HAIL KEWANNA 41.02N 86.41W
08/15/2007 M1.00 INCH FULTON IN AMATEUR RADIO

&&

$$

MCS

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KLOT [160321]: Preliminary Local Storm Report

NWUS53 KLOT 160321
LSRLOT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1021 PM CDT WED AUG 15 2007

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

0927 PM TSTM WND DMG KOUTS 41.32N 87.03W
08/15/2007 PORTER IN FIRE DEPT/RESCUE

MULTIPLE TREES DOWN ALONG WITH MULTPLE CAR ACCIDENTS

1008 PM FLASH FLOOD MERRILLVILLE 41.47N 87.33W
08/15/2007 LAKE IN TRAINED SPOTTER

5 INCHES OF WATER AT 161ST AND ROUTE 65

&&

$$

CGITRO

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KLOT [160300]: Preliminary Local Storm Report...corrected

NWUS53 KLOT 160300
LSRLOT

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 PM CDT WED AUG 15 2007

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

0844 PM TSTM WND DMG SCHERERVILLE 41.49N 87.45W
08/15/2007 LAKE IN EMERGENCY MNGR

4 INCH DIAMETER TREES DOWN...NUMEROUS FENCES
DOWN...SATELLITE DISH BENT BACKWARDS

0850 PM HAIL GRIFFITH 41.52N 87.42W
08/15/2007 E0.88 INCH LAKE IN TRAINED SPOTTER

PEA TO NICKEL SIZED HAIL AT INTERSECTION OF MAIN AND
CLINE AVENUES

0850 PM TSTM WND GST GARY 41.60N 87.34W
08/15/2007 M69.00 MPH LAKE IN ASOS

MEASURED AT GARY ASOS

0900 PM HAIL HOBART 41.53N 87.27W
08/15/2007 E1.00 INCH LAKE IN AMATEUR RADIO

QARTER SIZE HAIL IN HOBART

0903 PM HAIL MERRILLVILLE 41.47N 87.33W
08/15/2007 E0.75 INCH LAKE IN TRAINED SPOTTER

AT US 30 AND BROADWAY

0905 PM HAIL MERRILLVILLE 41.47N 87.33W
08/15/2007 E0.88 INCH LAKE IN NWS EMPLOYEE

NICKEL SIZED HAIL IN MARRILLVILLE

0905 PM HAIL HOBART 41.53N 87.27W
08/15/2007 E1.75 INCH LAKE IN TRAINED SPOTTER

61 STREET 3 MILES EAST OF I-65

0913 PM HAIL HEBRON 42.47N 88.43W
08/15/2007 E1.00 INCH MCHENRY IL TRAINED SPOTTER

1 INCH HAIL REPORTED IN HEBRON

0915 PM HAIL W VALPARAISO 41.48N 87.05W
08/15/2007 E1.00 INCH PORTER IN AMATEUR RADIO

WEST SIDE OF VALPARAISO

0915 PM HAIL HEBRON 42.47N 88.43W
08/15/2007 E1.00 INCH MCHENRY IL AMATEUR RADIO

QUARTER SIZED HAIL IN HEBRON

0925 PM FLASH FLOOD VALPARAISO 41.48N 87.05W
08/15/2007 PORTER IN TRAINED SPOTTER

FLASH FLOODING OCCURRING IN VALPARAISO. ROADWAYS COVERED
IN WATER

0925 PM TSTM WND GST VALPARAISO 41.48N 87.05W
08/15/2007 E60.00 MPH PORTER IN TRAINED SPOTTER

50 TO 60 MPH WIND GUSTS

&&

$$

CGITRO

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KIWX [160252]: Preliminary Local Storm Report

NWUS53 KIWX 160252
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1052 PM EDT WED AUG 15 2007

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

1051 PM HAIL NORTH JUDSON 41.22N 86.78W
08/15/2007 M1.00 INCH STARKE IN TRAINED SPOTTER

&&

$$

MCS

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KBOU [160249]: Preliminary Local Storm Report...summary

NWUS55 KBOU 160249
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
848 PM MDT WED AUG 15 2007

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

0505 PM HAIL S BOULDER 40.03N 105.25W
08/15/2007 M0.75 INCH BOULDER CO TRAINED SPOTTER

0425 PM HAIL SIMLA 39.14N 104.08W
08/15/2007 M0.88 INCH ELBERT CO TRAINED SPOTTER

RELAYED BY WFO PUEBLO

0222 PM HAIL W PERRY PARK 39.26N 104.98W
08/15/2007 M2.00 INCH DOUGLAS CO TRAINED SPOTTER

EXTENSIVE VEHICLE DAMAGE

0210 PM HAIL 1 E PERRY PARK 39.26N 104.96W
08/15/2007 M1.00 INCH DOUGLAS CO TRAINED SPOTTER

ALSO VERIFIED BY CHANNEL NINE TV MEDIA/PHOTO

0200 PM HAIL 2 NE LOVELAND 40.44N 105.05W
08/15/2007 M0.88 INCH LARIMER CO TRAINED SPOTTER

&&

$$

BENTON

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KLOT [160248]: Preliminary Local Storm Report...corrected

NWUS53 KLOT 160248
LSRLOT

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
948 PM CDT WED AUG 15 2007

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

0850 PM HAIL GRIFFITH 41.52N 87.42W
08/15/2007 E0.88 INCH LAKE IN TRAINED SPOTTER

PEA TO NICKEL SIZED HAIL AT INTERSECTION OF MAIN AND
CLINE AVENUES

0905 PM HAIL MERRILLVILLE 41.47N 87.33W
08/15/2007 E0.88 INCH LAKE IN NWS EMPLOYEE

NICKEL SIZED HAIL IN MARRILLVILLE

0925 PM FLASH FLOOD VALPARAISO 41.48N 87.05W
08/15/2007 PORTER IN TRAINED SPOTTER

FLASH FLOODING OCCURRING IN VALPARAISO. ROADWAYS COVERED
IN WATER

0925 PM TSTM WND GST VALPARAISO 41.48N 87.05W
08/15/2007 E60.00 MPH PORTER IN TRAINED SPOTTER

50 TO 60 MPH WIND GUSTS

&&

$$

CGITRO

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KBOU [160246]: Preliminary Local Storm Report...summary

NWUS55 KBOU 160246
LSRBOU

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
846 PM MDT WED AUG 15 2007

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

0505 PM HAIL S BOULDER 40.03N 105.25W
08/15/2007 M0.75 INCH BOULDER CO TRAINED SPOTTER

0425 PM HAIL SIMLA 39.14N 104.08W
08/15/2007 M0.88 INCH ELBERT CO TRAINED SPOTTER

RELAYED BY WFO PUEBLO

0222 PM HAIL W PERRY PARK 39.26N 104.98W
08/15/2007 M2.00 INCH DOUGLAS CO TRAINED SPOTTER

EXTENSIVE VEHICLE DAMAGE

0220 PM HAIL 1 E PERRY PARK 39.26N 104.96W
08/15/2007 M1.00 INCH DOUGLAS CO TRAINED SPOTTER

ALSO VERIFIED BY CHANNEL NINE TV MEDIA/PHOTO

0200 PM HAIL 2 NE LOVELAND 40.44N 105.05W
08/15/2007 M0.88 INCH LARIMER CO TRAINED SPOTTER

&&

$$

BENTON

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WATCHES: Tornado Watch Number 600

WWUS20 KWNS 160235
SEL0
SPC WW 160235
INZ000-OHZ000-LMZ000-160800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 600
NWS STORM PREDICTION CENTER NORMAN OK
1030 PM EDT WED AUG 15 2007

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

NORTHERN INDIANA
NORTHWEST OHIO
LAKE MICHIGAN

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1030 PM
UNTIL 400 AM EDT.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF
VALPARAISO INDIANA TO 65 MILES EAST OF FORT WAYNE INDIANA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU0).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

DISCUSSION...SMALL MCS OVER NW IND HAS FORMED IN THE PAST 90 MINUTES
ON WRN SIDE OF COLD POOL/MCV ASSOCIATED WITH EARLIER CONVECTIVE
SYSTEM. THE MCS SHOULD REMAIN STRONG THROUGH EARLY THURSDAY AND
TRACK ESE INTO OH. A SUPERCELL NOW PRESENT ON WRN SIDE OF SYSTEM
WILL POSE A THREAT FOR ISOLATED TORNADOES...IN ADDITION TO DAMAGING
WET MICROBURSTS/ MARGINALLY SVR HAIL...GIVEN HI PWS AND LOW LEVEL
WIND FIELD WITH CONSIDERABLE DEGREE OF SPEED/DIRECTIONAL SHEAR.
WIND PROFILES MAY ALSO SUPPORT BACK-BUILDING DEVELOPMENT ON WRN SIDE
OF MCS...WITH ASSOCIATED LOCALLY HEAVY RAIN POSSIBLE INTO FAR NE
IL/NRN IND IN WAKE OF SUPERCELL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 30030.

..CORFIDI

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KIWX [160229]: Preliminary Local Storm Report

NWUS53 KIWX 160229
LSRIWX

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1029 PM EDT WED AUG 15 2007

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

1018 PM TSTM WND DMG MICHIGAN CITY 41.71N 86.88W
08/15/2007 LA PORTE IN TRAINED SPOTTER

SEVERAL TREES DOWNED

&&

$$

MCS

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MESO: Mesoscale Discussion 1763

ACUS11 KWNS 160211
SWOMCD
SPC MCD 160211
OHZ000-INZ000-ILZ000-160315-

MESOSCALE DISCUSSION 1763
NWS STORM PREDICTION CENTER NORMAN OK
0911 PM CDT WED AUG 15 2007

AREAS AFFECTED...XTRM NERN IL...NRN IND AND NWRN OH

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 160211Z - 160315Z

TSTMS THAT DEVELOPED IN THE CHICAGOLAND AREA HAVE SHOWN A RECENT
INCREASE IN INTENSITY OVER NWRN IND WHERE HAILSTONES TO THE SIZE OF
NICKELS HAVE BEEN REPORTED. ACTIVITY APPEARS TO BE DEVELOPING ALONG
THE BACKSIDE OF A DEPARTING SPEED MAX/MCV WHERE WARM ADVECTION IS
BEING MAXIMIZED OVER A WEAK COLD POOL AND AHEAD OF A LOW-AMPLITUDE
PERTURBATION UPSTREAM OVER THE CORN BELT.

ACTIVITY HAS PROBABLY BEEN SLIGHTLY ELEVATED...BUT TAIL-END TSTM
APPEARS TO BE TRENDING MORE SFC-BASED. LATEST MESOANALYSIS SHOWS A
WEAK BOUNDARY...LIKELY A FOOTPRINT OF EARLIER DAY TSTMS...EXTENDING
FROM SW OF KFWA NWWD TO THE TAIL-END STORM. THOUGH THERE IS A WEAK
WIND SHIFT PRESENT...AIR MASS EITHER SIDE OF THE BOUNDARY WAS
SUFFICIENTLY UNSTABLE TO SUPPORT STG TSTMS.

IWX VWP EXHIBITS NEARLY 50 KTS OF EFFECTIVE SHEAR...SUPPORTIVE OF
EMBEDDED ORGANIZED STORMS. OTHERWISE...GIVEN GEOMETRY OF THE
LOW-LEVEL JET WITH RESPECT TO THE DEVELOPING TSTM CLUSTER AND
PRESENCE OF AMPLE INSTABILITY DOWNSTREAM...SITUATION WILL LIKELY
YIELD SPORADIC DOWNBURST/DMGG WINDS ALONG WITH HAIL. ATTM...IT
APPEARS THE GREATEST SVR THREAT WILL EVOLVE ESEWD FROM PORTER AND
LAKE COUNTIES ESEWD BETWEEN KGUS-KFWA. ACTIVITY COULD ALSO EVOLVE
INTO A HEAVY RAINFALL THREAT SEWD ACROSS NRN IND INTO NWRN OH IN A
FEW HOURS.

A SEVERE THUNDERSTORM WATCH WILL BE ISSUED SHORTLY.

.RACY.. 08/16/2007

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

ATTN...WFO...CLE...ILN...IWX...IND...LOT...

40748672 41228804 41478850 41778850 41718747 41628651
41308377 40558359 40128396 40288526

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KUNR [160210]: Preliminary Local Storm Report

NWUS53 KUNR 160210
LSRUNR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
810 PM MDT WED AUG 15 2007

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

0805 PM HAIL 13 W OGLALA 43.18N 102.99W
08/15/2007 E1.00 INCH SHANNON SD PUBLIC

&&

$$

BCECIL

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KVEF [160159]: Preliminary Local Storm Report

NWUS55 KVEF 160159
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
659 PM PDT WED AUG 15 2007

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

0615 PM HEAVY RAIN N MEADVIEW 36.00N 114.07W
08/15/2007 M1.34 INCH MOHAVE AZ MESONET

SENSOR IN MEADVIEW RECORDED 1.34 INCHES OF RAIN IN 25
MINUTES.

&&

$$

CBELL

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KVEF [160157]: Preliminary Local Storm Report

NWUS55 KVEF 160157
LSRVEF

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
657 PM PDT WED AUG 15 2007

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

0600 PM TSTM WND GST N MEADVIEW 36.00N 114.07W
08/15/2007 E50.00 MPH MOHAVE AZ TRAINED SPOTTER

HEAVY RAIN AND FREQUENT LIGHTNING REPORTED.

&&

$$

CBELL

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KLOT [160155]: Preliminary Local Storm Report

NWUS53 KLOT 160155
LSRLOT

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
855 PM CDT WED AUG 15 2007

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

0850 PM HAIL GRIFFITH 41.52N 87.42W
08/15/2007 E0.88 INCH LAKE IN TRAINED SPOTTER

PEA TO NICKEL SIZED HAIL AT INTERSECTION OF MAIN AND
CLINE AVENUES

&&

$$

CGITRO

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