SEL8
SPC WW 180900
NCZ000-VAZ000-CWZ000-181600-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 68
NWS STORM PREDICTION CENTER NORMAN OK
400 AM EST MON FEB 18 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EXTREME NORTHEAST NORTH CAROLINA
SOUTHEAST VIRGINIA
COASTAL WATERS
EFFECTIVE THIS MONDAY MORNING FROM 400 AM UNTIL 1100 AM EST.
TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES WEST SOUTHWEST OF
ELIZABETH CITY NORTH CAROLINA TO 35 MILES EAST NORTHEAST OF
NORFOLK VIRGINIA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
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...CONTINUE...WW 66...WW 67...
DISCUSSION...BROKEN SQLN WITH EMBEDDED SUPERCELLS OVER ERN NC
EXPECTED TO CONTINUE MOVING ENEWD...WITH ADDITIONAL DEVELOPMENT
LIKELY ON NRN END OF SYSTEM AS IT ENCOUNTERS INCREASINGLY RICH
MOISTURE ASSOCIATED WITH STRONG SLY LLJ. ASCENT PROVIDED BY
PROGRESSIVE LARGE SCALE TROUGH TO THE WEST...AND INTENSE SHEAR
PROFILES...SUGGEST POTENTIAL FOR EMBEDDED SUPERCELLS WITH A RISK FOR
HIGH WIND/ISOLATED TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
350. MEAN STORM MOTION VECTOR 22050.
..CORFIDI
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