SPC Severe Thunderstorm Watch 278

WW 278 SEVERE TSTM KS OK 050240Z – 051000Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 278
NWS STORM PREDICTION CENTER NORMAN OK
940 PM CDT TUE JUN 4 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  CENTRAL AND SOUTHERN KANSAS
  NORTHWESTERN AND NORTH CENTRAL OKLAHOMA

* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 940 PM
  UNTIL 500 AM CDT.

* PRIMARY THREATS INCLUDE...
  NUMEROUS DAMAGING WIND GUSTS LIKELY WITH A FEW SIGNIFICANT GUSTS
    TO 80 MPH POSSIBLE
  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
    INCHES IN DIAMETER POSSIBLE
  A FEW TORNADOES POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100
STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH
NORTHWEST OF HUTCHINSON KANSAS TO 35 MILES WEST OF OKLAHOMA CITY
OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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...CONTINUE...WW 276...WW 277...

DISCUSSION...FURTHER UPSCALE GROWTH OF THE ONGOING SEVERE MESOSCALE
CONVECTIVE SYSTEM ACROSS THE CENTRAL HIGH PLAINS IS EXPECTED DURING
THE NEXT FEW HOURS.  AIDED BY WEAK TO MODEST WESTERLY DEEP LAYER
MEAN FLOW...ACTIVITY MAY ACCELERATE EASTWARD ALONG A FRONT
NEAR/SOUTH OF THE INTERSTATE 70 CORRIDOR OF KANSAS...WHILE ALSO
DEVELOPING SOUTHWARD INTO A STRENGTHENING SOUTHERLY LOW-LEVEL
JET...TOWARD CENTRAL OKLAHOMA.  STRONG STRAIGHT LINE WIND GUSTS ARE
EXPECTED TO BECOME THE PREDOMINANT SEVERE WEATHER THREAT...BUT ONE
OR TWO TORNADOES MAY NOT BE OUT OF THE QUESTION...IN ADDITION TO THE
CONTINUING RISK FOR SEVERE HAIL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29035.


...KERR

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0278.html