WW 405 SEVERE TSTM KS NE 092340Z – 100600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 405
NWS STORM PREDICTION CENTER NORMAN OK
640 PM CDT TUE JUL 9 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
PARTS OF CENTRAL AND EASTERN KANSAS
SOUTH CENTRAL AND SOUTHEAST NEBRASKA
* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 640 PM
UNTIL 100 AM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH OF
HILL CITY KANSAS TO 25 MILES NORTH OF TOPEKA KANSAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
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 404...
DISCUSSION...TWO CLUSTERS OF THUNDERSTORMS -- ONE ACROSS SOUTH
CENTRAL NEBRASKA AND A SECOND/LARGER CLUSTER OVER PARTS OF WESTERN
AND CENTRAL KANSAS -- HAVE DEVELOPED THIS AFTERNOON...WITHIN AN
ENVIRONMENT CHARACTERIZED BY MODERATE WEST-NORTHWESTERLY MID-LEVEL
FLOW AND MODERATE INSTABILITY. SEVERE THREAT HAS REMAINED ISOLATED
THUS FAR...BUT HINTS THAT SOME UPSCALE CONVECTIVE GROWTH DURING THE
EVENING IS POSSIBLE -- AIDED BY A DEVELOPING SOUTHWESTERLY LOW-LEVEL
JET -- SUGGEST SOME THREAT FOR MORE WIDESPREAD WIND DAMAGE
EVENTUALLY DEVELOPING/SPREADING EAST-SOUTHEAST TOWARD THE MID MO
VALLEY THROUGH THE EVENING HOURS.
AVIATION...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 500. MEAN STORM
MOTION VECTOR 29030.
...GOSS
via SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0405.html
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