Thursday, March 01, 2007

PDS Tornado Watch



URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 44 NWS STORM PREDICTION CENTER NORMAN OK 730 AM CST THU MAR 1 2007

THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF:

MUCH OF ALABAMA
PARTS OF EASTERN ARKANSAS
WESTERN FLORIDA PANHANDLE
SOUTHEASTERN LOUISIANA
MISSISSIPPI
WESTERN AND MIDDLE TENNESSEE
COASTAL WATERS

EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 730 AM UNTIL 600 PM CST.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 2.5 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 140 STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES EAST NORTHEAST OF FORT CAMPBELL KENTUCKY TO 45 MILES SOUTH SOUTHEAST OF NEW ORLEANS LOUISIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 40...WW 41...WW 42...WW 43...

DISCUSSION...SCATTERED SEVERE/SUPERCELL THUNDERSTORMS ARE EXPECTED TO INCREASE IN AREAL COVERAGE AND INTENSITY THIS MORNING AHEAD OF POWERFUL UPPER TROUGH. STRONG SOUTHERLY LOW LEVEL WINDS ACROSS WATCH AREA WILL TRANSPORT GULF MOISTURE NORTHWARD. VERY STRONG VERTICAL SHEAR PROFILES AND SUFFICIENT INSTABILITY WILL POSE THE RISK OF STRONG/VIOLENT TORNADOES...AS WELL AS DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24045. ...HALES

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