

000 

WWUS20 KWNS 250301

SEL8

SPC WW 250301

NEZ000-SDZ000-250800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 748

NWS STORM PREDICTION CENTER NORMAN OK

1005 PM CDT THU JUL 24 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL NEBRASKA

       SOUTH CENTRAL SOUTH DAKOTA



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1005 PM

UNTIL 300 AM CDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80

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



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 105

STATUTE MILES EITHER SIDE OF A LINE FROM 30 MILES NORTH NORTHWEST

OF MULLEN NEBRASKA TO 30 MILES SOUTHEAST OF BURWELL NEBRASKA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 746...WW 747...



DISCUSSION...MATURING MCS NOW DEVELOPING ESEWD INTO CNTRL NE AND

SCNTRL SD WILL CONTINUE TO MAINTAIN THE THREAT OF HAIL AND DAMAGING

WINDS FOR AT LEAST A COUPLE MORE HOURS. PORTIONS OF THE MCS HAVE

BECOME DOMINATED BY EITHER OUTFLOW OR STRATIFORM MDT TO HVY RAIN.

HOWEVER...OUTFLOW INTERSECTIONS AND EMBEDDED ROTATING SEGMENTS

WITHIN THE COMPLEX WILL OCCASIONALLY POSE A THREAT FOR BOTH DAMAGING

WINDS AND HAIL.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 28035.





...CARBIN

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