

000 

WWUS20 KWNS 012236

SEL4

SPC WW 012236

IAZ000-KSZ000-MOZ000-020600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 244

NWS STORM PREDICTION CENTER NORMAN OK

540 PM CDT THU MAY 1 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       LARGE PART OF CENTAL IOWA

       LARGE PART OF EASTERN KANSAS

       LARGE PART OF WESTERN MISSOURI



EFFECTIVE THIS THURSDAY AFTERNOON AND FRIDAY MORNING FROM 540 PM

UNTIL 100 AM CDT.



TORNADOES...HAIL TO 3 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH OF CHANUTE

KANSAS TO 50 MILES NORTH OF DES MOINES IOWA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU4).



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 243...



DISCUSSION...SEVERE THUNDERSTORMS WILL RAPIDLY INCREASE IN NUMBER

AND INTENSITY ALONG AND E OF DRY LINE WHERE VERY UNSTABLE AIRMASS

EXISTS.  WITH STRONG VEERING SHEAR PROFILES IN PLACE AND APPROACH OF

MID LEVEL WIND MAX TORNADIC SUPERCELLS INCLUDING VERY LARGE HAIL ARE

LIKELY.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 21035.





...HALES

