

000 

WWUS20 KWNS 180300

SEL4

SPC WW 180300

KSZ000-NEZ000-180900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 564

NWS STORM PREDICTION CENTER NORMAN OK

1000 PM CDT TUE JUN 17 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHWEST AND NORTH-CENTRAL KANSAS

       SOUTH-CENTRAL NEBRASKA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1000 PM

UNTIL 400 AM CDT.



HAIL TO 2 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 65

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH

NORTHWEST OF GOODLAND KANSAS TO 30 MILES EAST NORTHEAST OF

CONCORDIA KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 559...WW 560...WW

561...WW 562...WW 563...



DISCUSSION...SEVERE STORMS WITH HAIL AND HIGH WINDS CONTINUE

SPREADING SSEWD ACROSS NEB THIS EVENING. THIS ACTIVITY SHOULD

CONTINUE TO TAKE ON QUASI-LINEAR CHARACTERISTICS AIDED BY WEAK MID

LEVEL DISTURBANCE TRANSLATING AROUND PERIPHERY OF LARGE SCALE RIDGE

AND MOIST...MODERATELY UNSTABLE...INFLOW AIR MASS. DESPITE GENERALLY

MARGINAL LOW LEVEL JET...REGIONAL PATTERN...TIME OF YEAR...AND

PRESENT ENVIRONMENT ALL SUGGEST A SEVERE MCS WILL TRACK SWD FROM NEB

AND INTO/ACROSS PARTS OF KS THROUGH MIDNIGHT CDT.



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 33035.





...CARBIN

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