Friday, April 13, 2007

PDS Watch 135


URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 135
NWS STORM PREDICTION CENTER NORMAN OK
325 PM CDT FRI APR 13 2007

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

NORTH CENTRAL TEXAS

EFFECTIVE THIS FRIDAY AFTERNOON FROM 325 PM UNTIL MIDNIGHT
CDT.

...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.

DISCUSSION...SUPERCELL THUNDERSTORMS ARE EXPECTED TO
DEVELOP THIS AFTERNOON ALONG SURFACE DRYLINE OVER WESTERN
NORTH TX. THESE STORMS WILL TRACK EAST-NORTHEASTWARD
ACROSS THE DFW METRO AREA THIS EVENING...WHILE OTHER MORE
ISOLATED FORM ACROSS THE REGION. VERY STRONG LOW LEVEL
VERTICAL SHEAR PROFILES AND FAVORABLE LOW LEVEL MOISTURE
PARAMETERS SUGGEST THE THREAT OF STRONG TORNADOES ACROSS
THE WATCH AREA.

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