Tornado Watch 818

Issued

Sep 25, 2005, 3:40 AM CDT (08:40 UTC)

Expired

Sep 25, 2005, 12:25 PM CDT

In force

9 hr

Issued by

the Storm Prediction Center

The Memphis radar (KNQA), 109 km from the middle of the area, began a volume at 08:44 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 2276Sep 25, 3:07 AM CDT
• Mesoscale Discussion 2277Sep 25, 9:32 AM CDT

000 
WWUS20 KWNS 250839
SEL8  
SPC WW 250839
ARZ000-MOZ000-MSZ000-TNZ000-251800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 818
NWS STORM PREDICTION CENTER NORMAN OK
340 AM CDT SUN SEP 25 2005

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

       EASTERN ARKANSAS
       MISSOURI BOOTHEEL
       MUCH OF MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 340 AM UNTIL 100
PM CDT.

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

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE MILES
EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF DYERSBURG
TENNESSEE TO 40 MILES SOUTHWEST OF LAUREL MISSISSIPPI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).

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 817. WATCH NUMBER 817 WILL NOT BE IN EFFECT AFTER 340
AM CDT. 

DISCUSSION...VERY STRONG SHEAR PROFILES PERSIST TO THE E OF THE 
REMNANTS OF RITA.  BANDS OF CONVECTION WITH EMBEDDED SUPERCELLS WILL
ROTATE N AND NWWD AHEAD OF RITA ACROSS LWR MS VALLEY. WITH DAYTIME
HEATING THREAT FOR TORNADOES EXPECTED TO INCREASE DURING MORNING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 19040.


...HALES

362,0881 311,0880 311,0911 362,0914

Tornado Watches in Mississippi, 2005Tornado Watches in Arkansas, 2005Tornado Watches in Tennessee, 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.