WW 240 TORNADO KS NE 291805Z – 300300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 240
NWS STORM PREDICTION CENTER NORMAN OK
105 PM CDT WED MAY 29 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
NORTHWEST KANSAS
WESTERN AND CENTRAL NEBRASKA
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 105 PM
UNTIL 1000 PM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTH SOUTHEAST OF
HILL CITY KANSAS TO 30 MILES NORTH NORTHWEST OF BROKEN BOW
NEBRASKA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
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 239...
DISCUSSION...A COMPLEX CONVECTIVE EVOLUTION IS ANTICIPATED TODAY
OWING TO ONGOING ELEVATED STORMS AND THE PRESENCE OF MULTIPLE
BOUNDARIES. SURFACE-BASED STORMS ARE EXPECTED TO INCREASE IN
COVERAGE THIS AFTERNOON FROM THE VICINITY OF MIGRATORY SURFACE LOW
AND ASSOCIATED SURFACE TROUGH TO ALONG AN OUTFLOW BOUNDARY LIFTING
NWD THROUGH S-CNTRL NEB. WHILE A MIXTURE OF STORM MODES IS
ANTICIPATED...THE COMBINATION OF A MOIST...MODERATELY UNSTABLE AIR
MASS AND STRENGTHENING LOW-LEVEL SHEAR WILL SUPPORT EMBEDDED
SUPERCELLS WITH A RISK FOR TORNADOES...IN ADDITION TO LARGE HAIL AND
DAMAGING WINDS.
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 23030.
...MEAD
via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0240.html
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