Tornado Watch 820

Issued

Sep 25, 2005, 12:30 PM CDT (17:30 UTC)

Expired

Sep 25, 2005, 6:45 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Jackson/Brandon,MS radar (KDGX), 108 km from the middle of the area, began a volume at 17:31 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 2277Sep 25, 9:32 AM CDT
• Mesoscale Discussion 2278Sep 25, 1:21 PM CDT
• Mesoscale Discussion 2280Sep 25, 3:41 PM CDT
• Mesoscale Discussion 2282Sep 25, 6:05 PM CDT

000 
WWUS20 KWNS 251730
SEL0  
SPC WW 251730
ALZ000-MSZ000-260100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 820
NWS STORM PREDICTION CENTER NORMAN OK
1230 PM CDT SUN SEP 25 2005

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

       SOUTHWEST ALABAMA
       SOUTHERN AND CENTRAL MISSISSIPPI

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 1230 PM UNTIL 800
PM CDT.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 110 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHWEST OF
TUSCALOOSA ALABAMA TO 40 MILES SOUTHWEST OF LAUREL MISSISSIPPI. 
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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 818. WATCH NUMBER 818 WILL NOT BE IN EFFECT AFTER
1230 PM CDT. CONTINUE...WW 819...

DISCUSSION...BANDS/SHORT LINE SEGMENTS OF SUPERCELLS EXPECTED THIS
AFTERNOON IN WW AREA.  BOTH SPEED AND DIRECTIONAL SHEAR WILL
DIMINISH AS REMNANTS OF RITA CONTINUE NEWD.  BUT CONFLUENT LOW LEVEL
FLOW AND MODERATE TO STRONG HEATING OF VERY MOIST INFLOW SHOULD
SUPPORT ADDITIONAL STORM DEVELOPMENT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 21030.


...CORFIDI

333,0855 311,0874 311,0913 333,0894

Tornado Watches in Mississippi, 2005Tornado Watches in Alabama, 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.