Alert archive / Alabama / Tornado Watches in 2005
Tornado Watch 821
The Storm Prediction Center issued this tornado watch at Sep 25, 2005, 6:50 PM CDT for 25 counties in Alabama; Chattooga County, Georgia; 21 counties in Mississippi. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 25, 2005, 6:50 PM CDT (23:50 UTC)
- Expired
- Sep 26, 2005, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 47 counties
Bibb County, AL, Blount County, AL, Cherokee County, AL, Choctaw County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Fayette County, AL, Franklin County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Chattooga County, GA, Attala County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Itawamba County, MS, Jasper County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Lowndes County, MS, Madison County, MS, Monroe County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Winston County, MS
The radar
The Columbus AFB radar (KGWX), 111 km from the middle of the area, began a volume at 23:52 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 7:04 PM CDT | Flash Flood Warning | JAN | Hinds, Rankin | 4 hr |
| Sep 25, 7:12 PM CDT | Tornado Warning | JAN | Lowndes | 39 min |
| Sep 25, 7:18 PM CDT | Tornado Warning | JAN | Clarke | 57 min |
| Sep 25, 7:27 PM CDT | Tornado Warning | JAN | Jasper | 18 min |
| Sep 25, 7:32 PM CDT | Tornado Warning | JAN | Noxubee | 45 min |
| Sep 25, 8:16 PM CDT | Tornado Warning | JAN | Clarke | 25 min |
| Sep 25, 9:50 PM CDT | Tornado Warning | JAN | Clarke | 40 min |
| Sep 26, 1:00 AM CDT | Tornado Warning | HUN | Marshall | 30 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 11.8 hours before the alert went out and 157 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 770 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 456 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 252348
SEL1
SPC WW 252348
ALZ000-MSZ000-260600-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 821
NWS STORM PREDICTION CENTER NORMAN OK
750 PM EDT SUN SEP 25 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND NORTHERN ALABAMA
CENTRAL AND EASTERN MISSISSIPPI
EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 750 PM UNTIL
200 AM EDT.
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 90 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES SOUTHWEST OF MERIDIAN
MISSISSIPPI TO 50 MILES NORTHWEST OF GADSDEN ALABAMA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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 819...TORNADO WATCH NUMBER 820. WATCH NUMBER 819 820
WILL NOT BE IN EFFECT AFTER 750 PM EDT.
DISCUSSION...THREAT FOR SUPERCELLS CAPABLE OF PRODUCING ISOLATED
TORNADOES IS EXPECTED TO PERSIST INTO THE EVENING AS ZONE OF ASCENT
ASSOCIATED WITH THE REMNANTS OF HURRICANE RITA CONTINUES SLOWLY EWD
THROUGH THE STRONGLY SHEARED ENVIRONMENT ACROSS ERN MS AND AL.
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 400.
MEAN STORM MOTION VECTOR 23030.
...DIAL/EVANS
315,0905 342,0881 342,0850 315,0874SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 3:40 AM CDT | Tornado Watch | SPC | Choctaw, Sumter, Washington | 9 hr |
| Sep 25, 9:32 AM CDT | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Greene, Lamar, Lauderdale and 5 more | 88 min |
| Sep 25, 11:05 AM CDT | Tornado Watch | SPC | Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 37 more | 8 hr |
| Sep 25, 12:30 PM CDT | Tornado Watch | SPC | Bibb, Chilton, Choctaw, Clarke, Dallas, Greene and 11 more | 6 hr |
| Sep 25, 1:21 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 40 more | 114 min |
| Sep 25, 3:41 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 40 more | 94 min |
| Sep 25, 6:05 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 36 more | 55 min |
| Sep 24, 8:55 PM CDT | Tornado Watch | SPC | Adams, Attala, Bolivar, Carroll, Claiborne, Coahoma and 34 more | 7 hr |
| Sep 24, 11:31 PM CDT | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Carroll, Claiborne, Coahoma and 31 more | 89 min |
| Sep 25, 3:07 AM CDT | Mesoscale Discussion | SPC | Adams, Attala, Bolivar, Carroll, Claiborne, Coahoma and 34 more | 53 min |
Nearby
Tornado Watches in Alabama, 2005Tornado Watches in Mississippi, 2005Tornado Watches in Georgia, 2005Every tornado watch in 2005
Sources
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.