URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 109 NWS STORM PREDICTION CENTER NORMAN OK 845 AM CST THU MAR 30 2006 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL AND EASTERN KANSAS SOUTHEAST NEBRASKA NORTHERN OKLAHOMA EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 845 AM UNTIL 600 PM CST. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER... THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHEAST OF GRAND ISLAND NEBRASKA TO 30 MILES SOUTHWEST OF TULSA OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9). REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND 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. OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES SEVERE THUNDERSTORM WATCH NUMBER 108. WATCH NUMBER 108 WILL NOT BE IN EFFECT AFTER 845 AM CST. DISCUSSION...VIGOROUS TROUGH AND ASSOCIATED WIND MAX WILL BE DRIVING EWD ACROSS THE CENTRAL/SRN PLAINS TODAY. VERY STRONG SHEAR PROFILES COUPLED WITH MLCAPES TO 1500 PROVIDE INGREDIENTS FOR RAPID DEVELOPMENT OF SUPERCELLS ALONG AND EAST OF DRY LINE WHICH CURRENTLY IS LOCATED FROM CENTRAL KS INTO NWRN OK. INITIALLY LARGE HAIL WILL BE PRIMARY THREAT WITH TORNADOES BECOMING INCREASINGLY LIKELY BY EARLY/MID AFTERNOON. AS SURFACE LOW NOW WRN KS MOVES NEWD TOWARD SERN NEB CONVERGENCE WILL ENHANCE POTENTIAL FOR POSSIBLE STRONG TORNADOES BOTH AHEAD OF LOW AND DOWN THE DRY LINE INTO NRN OK.
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