WATCHES: Tornado Watch Number 344

WWUS20 KWNS 222019
SEL4
SPC WW 222019
MTZ000-NEZ000-SDZ000-230200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 344
NWS STORM PREDICTION CENTER NORMAN OK
215 PM MDT SAT JUN 22 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF
SOUTHEAST MONTANA
WESTERN NEBRASKA
WESTERN SOUTH DAKOTA

* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
800 PM MDT.

* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES POSSIBLE
SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS
TO 80 MPH POSSIBLE
SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 3 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF BUFFALO
SOUTH DAKOTA TO 5 MILES SOUTH SOUTHWEST OF SIDNEY NEBRASKA. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 343...

DISCUSSION...STRONG/SEVERE STORM DEVELOPMENT WILL PERSIST AHEAD OF
THE VIGOROUS SHORT WAVE IMPULSE NOW PROGRESSING NORTHEASTWARD ACROSS
SOUTH CENTRAL MONTANA AND WYOMING. UPSCALE CONVECTIVE GROWTH INTO
ONE OR MORE ORGANIZED STORM CLUSTERS APPEARS POSSIBLE AS UPPER
FORCING SPREADS INTO THE HIGH PLAINS...BUT DISCRETE SUPERCELLS WITH
THE RISK FOR TORNADOES...IN ADDITION TO VERY LARGE HAIL...APPEAR TO
REMAIN POSSIBLE THROUGH AT LEAST 01-02Z.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25025.


...KERR

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