WW 346 TORNADO CO KS NE 222220Z – 230500Z
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 346
NWS STORM PREDICTION CENTER NORMAN OK
420 PM MDT SAT JUN 22 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
NORTHEAST COLORADO
NORTHWEST KANSAS
FAR SOUTHWEST NEBRASKA
* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 420 PM UNTIL
1100 PM MDT.
* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES POSSIBLE
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 TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF AKRON
COLORADO TO 35 MILES SOUTHWEST OF BURLINGTON COLORADO. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).
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...WW 344...WW 345...
DISCUSSION...TSTMS EXPECTED TO INCREASE THROUGH MID-EVE IN ZONE OF
UPSLOPE FLOW N OF WEAK W-E FRONT. ASCENT WILL BE ENHANCED BY UPR-LVL
DIFFLUENCE ON SERN FRINGE OF PROGRESSIVE...NRN RCKYS SHORTWAVE
TROUGH. STEEP LOW TO MID-LVL LAPSE RATES AND 30-40 KT WSWLY DEEP
SHEAR WITH A SIZABLE LOW-LVL DIRECTIONAL COMPONENT MAY SUPPORT A FEW
SUSTAINED STORMS/SUPERCELL CLUSTERS CAPABLE OF LARGE HAIL...DMGG
WIND...AND A COUPLE TORNADOES.
AVIATION...TORNADOES AND 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
500. MEAN STORM MOTION VECTOR 25025.
...CORFIDI
via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0346.html
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