Alert archive / Alabama / Tornado Watches in 2005
Tornado Watch 871
The Storm Prediction Center issued this tornado watch at Nov 15, 2005, 6:40 PM CST for 28 counties in Alabama; 10 parishes in Louisiana; 28 counties in Mississippi. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 15, 2005, 6:40 PM CST (00:40 UTC)
- Expired
- Nov 16, 2005, 1:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 66 counties
Autauga County, AL, Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, DeKalb County, AL, Etowah County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Marengo County, AL, Marshall County, AL, Perry County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Washington County, AL, Wilcox County, AL, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Livingston Parish, LA, Pointe Coupee Parish, LA, Saint Helena Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Greene County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Neshoba County, MS, Newton County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Walthall County, MS, Wayne County, MS, Wilkinson County, MS
The radar
The Birmingham radar (KBMX), 104 km from the middle of the area, began a volume at 00:43 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
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 6:44 PM CST | Severe Thunderstorm Warning | JAN | Copiah, Franklin, Lawrence, Lincoln | 76 min |
| Nov 15, 6:58 PM CST | Severe Thunderstorm Warning | LIX | Iberville, Pointe Coupee, West Baton Rouge, West Feliciana | 47 min |
| Nov 15, 7:09 PM CST | Severe Thunderstorm Warning | JAN | Scott | 36 min |
| Nov 15, 7:14 PM CST | Severe Thunderstorm Warning | LIX | Amite | 61 min |
| Nov 15, 7:36 PM CST | Severe Thunderstorm Warning | LIX | Pike | 54 min |
| Nov 15, 7:37 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Livingston, Saint Helena, West Baton Rouge, West Feliciana | 38 min |
| Nov 15, 8:04 PM CST | Severe Thunderstorm Warning | JAN | Covington, Jefferson Davis, Simpson | 56 min |
| Nov 15, 8:13 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, Livingston, Saint Helena | 32 min |
| Nov 15, 8:33 PM CST | Severe Thunderstorm Warning | JAN | Smith | 57 min |
| Nov 15, 8:41 PM CST | Tornado Warning | JAN | Covington, Smith | 49 min |
| Nov 15, 9:04 PM CST | Severe Thunderstorm Warning | JAN | Jones | 56 min |
| Nov 15, 9:09 PM CST | Severe Thunderstorm Warning | BMX | Tuscaloosa | 66 min |
| Nov 15, 9:26 PM CST | Severe Thunderstorm Warning | HUN | Marshall | 49 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
Birmingham, AL (KBMX), launched 00:00Z, 0.7 hours before the alert went out and 104 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
- 440 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 828 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 270 m²/s²
- 0-3 km storm-relative helicity
- 313 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 160041
SEL1
SPC WW 160041
ALZ000-LAZ000-MSZ000-160700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 871
NWS STORM PREDICTION CENTER NORMAN OK
640 PM CST TUE NOV 15 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL ALABAMA
SOUTHEASTERN LOUISIANA
SOUTHERN AND EASTERN MISSISSIPPI
EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 640 PM
UNTIL 100 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 60 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 35 MILES EAST NORTHEAST OF GADSDEN
ALABAMA TO 20 MILES NORTHWEST OF BATON ROUGE LOUISIANA. 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 867. WATCH NUMBER 867 WILL NOT BE IN EFFECT AFTER 640
PM CST. CONTINUE...WW 868...WW 869...WW 870...
DISCUSSION...BROKEN LINE OF STRONG/SEVERE THUNDERSTORMS CURRENTLY
FROM NWRN AL SWWD INTO SWRN MS/SRN LA EXPECTED TO CONTINUE EWD.
LATEST UPPER AIR SOUNDINGS SUPPORT THREAT OF TORNADIC SUPERCELLS
ASSOCIATED WITH THIS LINE AS IT MOVES THRU A MODERATELY UNSTABLE AIR
MASS ALONG WITH FAVORABLE SHEAR PROFILES.
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 500.
MEAN STORM MOTION VECTOR 24030.
...HALES
331,0853 295,0912 313,0912 350,0853SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 6:20 PM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Blount, Calhoun, Cherokee and 28 more | 55 min |
| Nov 15, 8:29 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Chilton, Choctaw and 24 more | 91 min |
| Nov 15, 11:07 PM CST | Mesoscale Discussion | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 16 more | 53 min |
| Nov 16, 2:03 AM CST | Mesoscale Discussion | SPC | Randolph | 117 min |
Nearby
Tornado Watches in Alabama, 2005Tornado Watches in Mississippi, 2005Tornado Watches in Louisiana, 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.