WW 181 TORNADO IA KS MO NE 191850Z – 200300Z
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 181
NWS STORM PREDICTION CENTER NORMAN OK
150 PM CDT SUN MAY 19 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
SOUTHWEST IOWA
CENTRAL AND EASTERN KANSAS
WEST CENTRAL AND NORTHWEST MISSOURI
SOUTHEAST NEBRASKA
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL
1000 PM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES LIKELY WITH A FEW INTENSE TORNADOES POSSIBLE
NUMEROUS LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 3 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS
TO 80 MPH POSSIBLE
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 115 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST OF
FALLS CITY NEBRASKA TO 45 MILES SOUTH OF WICHITA KANSAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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 179...WW 180...
DISCUSSION...RAPID BOUNDARY LAYER DESTABILIZATION IS UNDERWAY ACROSS
CENTRAL AND EASTERN KANSAS...WHERE FORCING FOR UPWARD VERTICAL
MOTION IN THE EXIT REGION OF A 500 MB JET STREAK WILL AID STORM
INITIATION DURING THE NEXT FEW HOURS. DISCRETE SUPERCELLS APPEAR
LIKELY... ESPECIALLY INITIALLY...BEFORE CONVECTION BEGINS TO
CONSOLIDATE... WITH THE UPSCALE GROWTH OF A SEVERE MESOSCALE
CONVECTIVE SYSTEM EXPECTED BY EARLY EVENING. STORMS WILL SPREAD
INTO ADJACENT PORTIONS OF SOUTHEAST NEBRASKA...SOUTHWEST IOWA AND
WESTERN MISSOURI. STRONGEST STORMS WILL BE CAPABLE OF PRODUCING
VERY LARGE HAIL...A FEW TORNADOES...SOME POSSIBLY STRONG...BEFORE
DAMAGING WINDS BECOME A MORE PROMINENT RISK THIS EVENING.
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 24035.
...KERR
via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0181.html
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