Tornado Watch 119

Issued

Mar 31, 2005, 11:15 PM CST (05:15 UTC)

Expired

Apr 1, 2005, 7:00 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

The Jackson/Brandon,MS radar (KDGX), 149 km from the middle of the area, began a volume at 05:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

• Mesoscale Discussion 469Mar 31, 8:59 PM CST
• Mesoscale Discussion 470Mar 31, 9:27 PM CST
• Mesoscale Discussion 471Mar 31, 10:53 PM CST
• Mesoscale Discussion 473Apr 1, 1:29 AM CST
• Mesoscale Discussion 474Apr 1, 4:14 AM CST

000 
WWUS20 KWNS 010517
SEL9  
SPC WW 010517
LAZ000-MSZ000-011300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 119
NWS STORM PREDICTION CENTER NORMAN OK
1115 PM CST THU MAR 31 2005

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

       NORTHERN...CENTRAL AND EASTERN LOUISIANA
       CENTRAL AND SOUTHERN MISSISSIPPI

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1115 PM
UNTIL 700 AM CST.

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 80 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 60 MILES NORTH NORTHWEST OF FORT
POLK LOUISIANA TO 40 MILES EAST OF LAUREL MISSISSIPPI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU9).

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...THIS TORNADO WATCH REPLACES SEVERE
THUNDERSTORM WATCH NUMBER 116...SEVERE THUNDERSTORM WATCH NUMBER
117. WATCH NUMBER 116 117 WILL NOT BE IN EFFECT AFTER 1115 PM CST.
CONTINUE...WW 115...WW 118...

DISCUSSION...COMPLEX SCENARIO UNFOLDING TONIGHT WITH MULTIPLE
CONVECTIVE CLUSTERS AND BOUNDARIES.  A BOW ECHO NEARLY COINCIDENT
WITH WEAK SURFACE LOW IN NW LA SHOULD CONTINUE EWD ALONG RETREATING
WARM FRONT.  FARTHER E...RAIN-COOLED BOUNDARY IS LIFTING VERY SLOWLY
NWD ACROSS SE LA/SRN MS.  THE STRONG MID LEVEL TROUGH OVER TX/OK NOW
SHOULD GRADUALLY BEGIN TO PHASE WITH THE WARM SECTOR
OVERNIGHT...WITH RESULTANT CYCLOGENESIS EXPECTED FROM NRN LA INTO
WRN MS.  IN RESPONSE TO THE CYCLOGENESIS...LOW-LEVEL WINDS/SHEAR
WILL GRADUALLY BECOME MORE FAVORABLE FOR SUPERCELLS WITH A
TORNADOES.  THE MAIN UNCERTAINTY FOR TORNADOES IS THE SHALLOW STABLE
LAYER ACROSS MUCH OF MS IN ASSOCIATION WITH THE RAIN-COOLED AIR
MASS...THOUGH THIS STABLE LAYER MAY TEND TO ERODE FROM THE S DURING
THE EARLY MORNING HOURS.

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 450.
MEAN STORM MOTION VECTOR 26030.


...THOMPSON

330,0933 325,0882 303,0882 304,0933

Tornado Watches in Mississippi, 2005Tornado Watches in Louisiana, 2005Every tornado watch in 2005

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; radar from the NEXRAD Level II archive.