SPC Severe Thunderstorm Watch 478

WW 478 SEVERE TSTM KS 070250Z – 070900Z


URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 478
NWS STORM PREDICTION CENTER NORMAN OK
950 PM CDT TUE AUG 6 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  SOUTH CENTRAL AND SOUTHEAST KANSAS

* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 950 PM
  UNTIL 400 AM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH OF
MEDICINE LODGE KANSAS TO 20 MILES EAST OF CHANUTE KANSAS.  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...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 475. WATCH NUMBER 475 WILL NOT
BE IN EFFECT AFTER 950 PM CDT. CONTINUE...WW 476...WW 477...

DISCUSSION...CLUSTER OF STORMS IN SW KS WILL DEVELOP EWD OVERNIGHT
IN A MOIST/ UNSTABLE ENVIRONMENT...WITH SOME CONTINUED POTENTIAL FOR
ISOLATED DAMAGING GUSTS AND LARGE HAIL WITH THE STRONGER STORM
CORES/MERGERS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION
VECTOR 27025.


...THOMPSON

via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0478.html