

000 

WWUS20 KWNS 250615

SEL9

SPC WW 250615

IAZ000-KSZ000-MOZ000-NEZ000-251200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 229

NWS STORM PREDICTION CENTER NORMAN OK

115 AM CDT FRI APR 25 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST IOWA

       NORTHEASTERN KANSAS

       NORTHWEST MISSOURI

       SOUTHEAST NEBRASKA



EFFECTIVE THIS FRIDAY MORNING FROM 115 AM UNTIL 700 AM CDT.



TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF CONCORDIA

KANSAS TO 35 MILES SOUTHEAST OF SHENANDOAH IOWA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU9).



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 227...WW 228...



DISCUSSION...ISOLATED BUT POTENTIALLY STRONG TORNADOES POSSIBLE

OVERNIGHT INVOF WARM FRONT ACROSS THE LWR MO VLY...WHERE

INCREASINGLY MOIST 70+ KT SSWLY LLJ WILL IMPINGE ON

SLOWLY-RETREATING OUTFLOW BOUNDARY.  A TORNADO THREAT WILL ALSO

EXIST AS LONG-LIVED...ISOLATED...AND APPARENTLY SFC-BASED SUPERCELL

NOW APPROACHING CNK CONTINUES E INTO INCREASINGLY MOIST LOW-LEVEL

ENVIRONMENT.



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 26030.





...CORFIDI

