Tornado Watch 5

Issued

Feb 5, 2004, 5:40 AM CST (11:40 UTC)

Expired

Feb 5, 2004, 12:00 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 82Feb 5, 5:08 AM CST
• Mesoscale Discussion 83Feb 5, 7:35 AM CST
• Mesoscale Discussion 84Feb 5, 8:02 AM CST
• Mesoscale Discussion 85Feb 5, 9:52 AM CST

000 
WWUS20 KWNS 051143
SEL5  
SPC WW 051140
LAZ000-MSZ000-TXZ000-CWZ000-051800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 5
NWS STORM PREDICTION CENTER NORMAN OK
540 AM CST THU FEB 5 2004

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

       LARGE PART OF LOUISIANA
       SOUTHWEST MISSISSIPPI
       EXTREME SOUTHEAST TEXAS
       COASTAL WATERS

EFFECTIVE THIS THURSDAY MORNING FROM 540 AM UNTIL NOON CST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND
WEST OF A LINE FROM 45 MILES WEST SOUTHWEST OF INTRACOASTAL CITY
LOUISIANA TO 35 MILES WEST NORTHWEST OF JACKSON MISSISSIPPI.

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.




DISCUSSION...LARGE SCALE ASCENT WILL INCREASE THROUGH THE MORNING
AHEAD OF APPROACHING UPPER LOW AS STRONG UPPER DIFLUENCE AND
INCREASING LOW LEVEL CONVERGENCE OVERSPREAD THE REGION. 
WELL-DEFINED SURFACE FRONT WILL LIKELY REMAIN IN A NE-SW ORIENTATION
FROM N-CENTRAL MS INTO FAR SERN TX/SWRN LA THROUGH THE MID
MORNING...WITH A SERIES OF WEAK WAVES SHIFTING NEWD ALONG IT.  NET
RESULT WILL BE AN INCREASE IN STORM COVERAGE/INTENSITY ACROSS
WW...AS DIURNAL HEATING INCREASES AND BOUNDARY LAYER MOISTENS. 
STORMS SHOULD BECOME INCREASINGLY SURFACE-BASED WITH VERY STRONG
SHEAR SUPPORTIVE OF TORNADIC SUPERCELLS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 23040.


...EVANS

293,0942 322,0921 322,0885 293,0910

Tornado Watches in Louisiana, 2004Tornado Watches in Mississippi, 2004Tornado Watches in Texas, 2004Every tornado watch in 2004

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.