WATCHES: Severe Thunderstorm Watch Number 461

WWUS20 KWNS 122005
SEL1
SPC WW 122005
MTZ000-NDZ000-130300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 461
NWS STORM PREDICTION CENTER NORMAN OK
205 PM MDT MON JUL 12 2010

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

EASTERN MONTANA
WESTERN NORTH DAKOTA

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 205 PM UNTIL 900
PM MDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH
NORTHEAST OF WOLF POINT MONTANA TO 25 MILES SOUTH OF BROADUS
MONTANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 458...WW 459...WW 460...

DISCUSSION...TSTMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON INTO
EVENING IN ADVANCE OF A POTENT SHORT WAVE TROUGH TRANSLATING ESEWD
INTO THE NRN HIGH PLAINS. THE PRESENCE OF SUFFICIENT BOUNDARY LAYER
MOISTURE...STEEP LAPSE RATES AND STRENGTHENING VERTICAL SHEAR WILL
ALL CONTRIBUTE TO ORGANIZED STORMS INCLUDING SUPERCELLS AND BOWING
STRUCTURES WITH THE THREAT FOR LARGE HAIL AND DAMAGING WINDS.

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 28030.

...MEAD

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.