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WWUS20 KWNS 022013

SEL5

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MTZ000-NDZ000-NEZ000-SDZ000-WYZ000-030400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 585

NWS STORM PREDICTION CENTER NORMAN OK

215 PM MDT SAT JUL 2 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHEAST MONTANA

       SOUTHWEST NORTH DAKOTA

       WESTERN NEBRASKA

       WESTERN SOUTH DAKOTA

       EASTERN WYOMING



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 215 PM UNTIL

1000 PM MDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF

MILES CITY MONTANA TO 40 MILES WEST OF SIDNEY NEBRASKA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 583...WW 584...



DISCUSSION...SCATTERED THUNDERSTORMS ARE BEGINNING TO FORM OVER

EASTERN WY.  THIS ACTIVITY WILL SPREAD EASTWARD ACROSS THE WATCH

AREA THROUGH THE EVENING.  SOUTHEASTERLY AND INCREASING LOW LEVEL

WINDS...COUPLED WITH SUFFICIENT WESTERLY FLOW ALOFT...WILL PROMOTE

SUPERCELL STORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS.

STRENGTHENING WIND FIELDS BY 00Z ALSO SUGGEST A RISK OF A FEW

TORNADOES.



AVIATION...TORNADOES AND 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 26030.





...HART

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