PDS Tornado Watch Issued to our West

The SPC has issued a large tornado watch for much of Mississippi. It also etends into a small part of western Tennessee, Arkansas and Louisiana.

It is a PDS, or Particularly Dangerous Situation Watch. This means there is an enhanced threat of tornadoes. Notice the hazard likelihoods at the bottom of the graphic.

URGENT – IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 91
NWS STORM PREDICTION CENTER NORMAN OK
600 AM CDT SAT APR 24 2010

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

EASTERN ARKANSAS
NORTHEAST LOUISIANA
CENTRAL AND NORTHERN MISSISSIPPI
SOUTHWEST TENNESSEE

EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 600 AM UNTIL
100 PM CDT.

…THIS IS A PARTICULARLY DANGEROUS SITUATION…

DESTRUCTIVE TORNADOES…LARGE HAIL TO 3 INCHES IN DIAMETER…
THUNDERSTORM WIND GUSTS TO 70 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 25 MILES NORTH NORTHEAST OF
MEMPHIS TENNESSEE TO 55 MILES WEST OF PINE BELT MISSISSIPPI. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 89…WW 90…

DISCUSSION…CLUSTERS OF SEVERE THUNDERSTORMS ARE EXPECTED TO
INTENSIFY THIS MORNING AS LOW LEVEL JET STRENGTHENS AND UPPER TROUGH
APPROACHES. A COMBINATION OF HIGH MOISTURE VALUES…MODERATE
CAPE…AND EXTREMELY STRONG SHEAR PROFILES WILL POSE A RISK OF
TORNADIC SUPERCELLS THROUGH THE MORNING. STRONG TORNADOES ARE
POSSIBLE.

AVIATION…TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.

…HART

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