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445 

WWUS20 KWNS 111922

SEL2

SPC WW 111922

IAZ000-KSZ000-MOZ000-NEZ000-120300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 142

NWS STORM PREDICTION CENTER NORMAN OK

220 PM CDT SUN MAY 11 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  SOUTHWEST IOWA

  NORTH-CENTRAL AND NORTHEAST KANSAS

  FAR NORTHWEST MISSOURI

  SOUTH-CENTRAL AND EASTERN NEBRASKA



* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 220 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES LIKELY WITH A COUPLE INTENSE TORNADOES

    POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTH SOUTHWEST OF

KEARNEY NEBRASKA TO 35 MILES NORTHEAST OF SHENANDOAH IOWA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU2).



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 141...



DISCUSSION...EXPLOSIVE TSTM DEVELOPMENT IS ANTICIPATED FROM JUST

NORTHEAST OF A SURFACE LOW OVER NORTH-CENTRAL KANSAS NORTHEAST ALONG

A WARM FRONT MOVING NORTH THROUGH EASTERN NEBRASKA AND WESTERN IA.

GIVEN THE COMBINATION OF MODERATE TO STRONG INSTABILITY AND STRONG

LOW-LEVEL AND DEEP-LAYER SHEAR...THE ENVIRONMENT WILL BE QUITE

FAVORABLE FOR LONG-LIVED SUPERCELLS CAPABLE OF VERY LARGE HAIL AND

TORNADOES...A COUPLE OF WHICH COULD BE INTENSE.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24030.





...MEAD

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