

000 

WWUS20 KWNS 011020

SEL3

SPC WW 011020

KSZ000-OKZ000-011800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 413

NWS STORM PREDICTION CENTER NORMAN OK

520 AM CDT SUN JUN 1 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       SOUTHERN KANSAS

       NORTHERN OKLAHOMA



EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 520 AM UNTIL 100

PM CDT.



HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH OF

ELKHART KANSAS TO 45 MILES SOUTH SOUTHEAST OF CHANUTE KANSAS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU3).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 412. WATCH NUMBER 412 WILL NOT

BE IN EFFECT AFTER 520 AM CDT. CONTINUE...WW 409...WW 411...



DISCUSSION...TSTMS/SUPERCELLS THAT EVOLVED FROM EARLIER STORMS IN SE

CO HAVE DEVELOPED ESE INTO SW KS...WHERE THEY ARE ENCOUNTERING

INCREASINGLY MOISTURE-RICH ESE LOW-LVL FLOW.  ALTHOUGH THE STORMS

ATTM REMAIN SLIGHTLY ELEVATED...THEY MAY BECOME INCREASINGLY

SFC-BASED LATER THIS MORNING AS ASSOCIATED COLD POOLS

STRENGTHEN/CONSOLIDATE.  RESULTING STORM CLUSTERS MAY POSE A RISK

FOR DMGG WIND...IN ADDITION TO LARGE HAIL...AS THEY MOVE GENERALLY

ESE TOWARD SE KS/NE OK.



AVIATION...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 28030.





...CORFIDI

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