Tornado Watch 80

Issued

Mar 27, 2009, 4:16 PM CDT (21:16 UTC)

Expired

Mar 27, 2009, 8:03 PM CDT

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

Counties Caldwell Parish, LA, Catahoula Parish, LA, Concordia Parish, LA, Franklin Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Tensas Parish, LA, Adams County, MS, Claiborne County, MS, Copiah County, MS, Franklin County, MS, Jefferson County, MS, Lawrence County, MS, Lincoln County, MS

Two or more tornadoes

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 303Mar 27, 6:18 PM CDT

978 
WWUS20 KWNS 272113
SEL0  
SPC WW 272113
LAZ000-MSZ000-280200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 80
NWS STORM PREDICTION CENTER NORMAN OK
415 PM CDT FRI MAR 27 2009

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

       NORTHEAST LOUISIANA
       EXTREME SOUTHWEST MISSISSIPPI

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 415 PM UNTIL 900
PM CDT.

TORNADOES...HAIL TO 2 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 45 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST OF
NATCHEZ MISSISSIPPI TO 10 MILES SOUTH SOUTHWEST OF ALEXANDRIA
LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 77...WW 78...WW 79...

DISCUSSION...A CLUSTER OF SUPERCELL THUNDERSTORMS OVER CENTRAL LA
WILL TRACK ALONG THE RETREATING WARM FRONT FOR ANOTHER FEW HOURS
TOWARD SOUTHWEST MS.  INCREASING VERTICAL SHEAR ALONG THE FRONT WILL
POSE A RISK OF ISOLATED TORNADOES...ALONG WITH DAMAGING WINDS AND
HAIL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.


...HART

Tornado Watches in Louisiana, 2009Tornado Watches in Mississippi, 2009Every tornado watch in 2009

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.