999 
WWUS20 KWNS 030303
SEL2  
SPC WW 030303
KSZ000-OKZ000-TXZ000-030300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH - NUMBER 642 
NWS STORM PREDICTION CENTER NORMAN OK 
1003 PM CDT THU SEP 2 2010

THE NWS STORM PREDICTION CENTER HAS CANCELLED 
SEVERE THUNDERSTORM WATCH NUMBER 642 ISSUED AT 330 PM CDT FOR PORTIONS OF

         KANSAS
         OKLAHOMA
         TEXAS

025 
WOUS64 KWNS 030303
WOU2  

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 642
NWS STORM PREDICTION CENTER NORMAN OK
1003 PM CDT THU SEP 02 2010

SEVERE THUNDERSTORM WATCH 642 IS NO LONGER IN EFFECT.

KSZ000-OKZ000-TXZ000-030300-
/O.EXP.KWNS.SV.A.0642.000000T0000Z-100903T0300Z/

NO COUNTIES OR PARISHES REMAIN IN THE WATCH.

$$

ATTN...WFO...ICT...OUN...LUB...AMA...TSA...TOP...EAX...SGF...



 

291 
WWUS40 KWNS 022031
WWP2  

SEVERE THUNDERSTORM WATCH PROBABILITIES FOR WS 0642
NWS STORM PREDICTION CENTER NORMAN OK
0331 PM CDT THU SEP 02 2010

WS 0642
PROBABILITY TABLE:
PROB OF 2 OR MORE TORNADOES                        :  10%
PROB OF 1 OR MORE STRONG /F2-F5/ TORNADOES         : <02%
PROB OF 10 OR MORE SEVERE WIND EVENTS              :  60%
PROB OF 1 OR MORE WIND EVENTS >= 65 KNOTS          :  30%
PROB OF 10 OR MORE SEVERE HAIL EVENTS              :  30%
PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES          :  20%
PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS :  80%

&&
ATTRIBUTE TABLE:
MAX HAIL /INCHES/                            : 2.0
MAX WIND GUSTS SURFACE /KNOTS/               : 60
MAX TOPS /X 100 FEET/                        : 550
MEAN STORM MOTION VECTOR /DEGREES AND KNOTS/ : 30020
PARTICULARLY DANGEROUS SITUATION             : NO

&&
FOR A COMPLETE GEOGRAPHICAL DEPICTION OF THE WATCH AND
WATCH EXPIRATION INFORMATION SEE WOUS64 FOR WOU2.

$$