

000 

WWUS20 KWNS 020554

SEL6

SPC WW 020554

KSZ000-MOZ000-021300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 246

NWS STORM PREDICTION CENTER NORMAN OK

1255 AM CDT FRI MAY 2 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN KANSAS

       WESTERN AND NORTHERN MISSOURI



EFFECTIVE THIS FRIDAY MORNING FROM 1255 AM UNTIL 800 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 90 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF CHILLICOTHE

MISSOURI TO 35 MILES WEST SOUTHWEST OF JOPLIN MISSOURI.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU6).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 244. WATCH NUMBER 244 WILL NOT BE IN EFFECT AFTER

1255 AM CDT. CONTINUE...WW 245...



DISCUSSION...CONVECTION HAS EVOLVED INTO MORE OF SQUALL LINE ON THE

SURGING COLD FRONT AND IN ADVANCE OF THE SURFACE LOW DEVELOPING NEWD

FROM NRN OK.  DESPITE THE LINEAR STRUCTURE TO THE STORMS...LOW-LEVEL

SHEAR REMAINS STRONG IN THE WARM SECTOR.  THE STRONGER STORMS WILL

BE CAPABLE OF PRODUCING A COUPLE OF TORNADOES...ESPECIALLY WITH ANY

DISCRETE CELLS IN THE LINE...OR WHERE THE LINE INTERACTS WITH A

RETREATING BOUNDARY ACROSS NW MO.  OTHERWISE...DAMAGING WINDS AND

LARGE HAIL ARE LIKELY THROUGH THE OVERNIGHT HOURS.



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

550. MEAN STORM MOTION VECTOR 24035.





...THOMPSON

