Alert archive / Alabama / Tornado Watches in 2000
Tornado Watch 790
The Storm Prediction Center issued this tornado watch at Nov 8, 2000, 11:30 PM CST for 27 counties in Alabama; 9 counties in Georgia; 25 counties in Tennessee. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 8, 2000, 11:30 PM CST (05:30 UTC)
- Expired
- Nov 9, 2000, 5:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 61 counties
Autauga County, AL, Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Cullman County, AL, DeKalb County, AL, Etowah County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL, Perry County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Gordon County, GA, Murray County, GA, Polk County, GA, Walker County, GA, Whitfield County, GA, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Cannon County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Franklin County, TN, Grundy County, TN, Hamilton County, TN, Knox County, TN, Lincoln County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Sequatchie County, TN, Van Buren County, TN, Warren County, TN, White County, TN
The radar
The Birmingham radar (KBMX), 85 km from the middle of the area, began a volume at 05:29 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
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 11:30 PM CST | Tornado Warning | BMX | Bibb, Perry | 45 min |
| Nov 8, 11:37 PM CST | Severe Thunderstorm Warning | BMX | Jackson | 38 min |
| Nov 8, 11:37 PM CST | Tornado Warning | BMX | Tuscaloosa | 23 min |
| Nov 8, 11:52 PM CST | Tornado Warning | BMX | Fayette, Walker | 23 min |
| Nov 8, 11:57 PM CST | Tornado Warning | BMX | Jefferson | 33 min |
| Nov 8, 11:58 PM CST | Tornado Warning | BMX | Shelby | 32 min |
| Nov 9, 12:17 AM CST | Severe Thunderstorm Warning | BMX | Jackson | 43 min |
| Nov 9, 12:25 AM CST | Severe Thunderstorm Warning | MRX | Marion | 50 min |
| Nov 9, 12:27 AM CST | Tornado Warning | BMX | Shelby | 33 min |
| Nov 9, 12:45 AM CST | Tornado Warning | BMX | Jefferson | 30 min |
| Nov 9, 1:01 AM CST | Tornado Warning | BMX | St. Clair | 29 min |
| Nov 9, 1:11 AM CST | Severe Thunderstorm Warning | MRX | Marion | 34 min |
| Nov 9, 1:31 AM CST | Tornado Warning | BMX | Perry | 29 min |
| Nov 9, 1:56 AM CST | Tornado Warning | BMX | Etowah | 34 min |
| Nov 9, 1:57 AM CST | Tornado Warning | BMX | DeKalb | 48 min |
| Nov 9, 2:23 AM CST | Tornado Warning | BMX | Cherokee | 37 min |
| Nov 9, 2:40 AM CST | Severe Thunderstorm Warning | FFC | Chattooga, Floyd | 35 min |
The nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 5.5 hours before the alert went out and 84 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
- 158 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 261 m²/s²
- 0-3 km storm-relative helicity
- 382 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
228 WWUS9 KMKC 090520 SEL0 SEL0 MKC WW 090515 ALZ000-GAZ000-TNZ000-091100- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 790 STORM PREDICTION CENTER NORMAN OK 1115 PM CST WED NOV 8 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF CENTRAL..NORTHERN AND EASTERN ALABAMA NORTHWEST GEORGIA MIDDLE AND EAST TENNESSEE EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1130 PM UNTIL 500 AM CST. TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTH SOUTHWEST OF CENTREVILLE ALABAMA TO 20 MILES EAST NORTHEAST OF CROSSVILLE TENNESSEE. 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... CONTINUE...WW 788...WW 789... DISCUSSION...THREAT WILL CONTINUE FOR LEWPS/BOWS AND ISOLATED TORNADOES...BOTH ALONG MAIN NNE/SSW-ORIENTED SQUALL LINE ATTM IN WRN/NRN AL...AND WITH ISOLATED CELLS AHEAD OF LINE. LOW-LEVEL SRH WILL CONTINUE TO BE ENHANCED INVOF BOUNDARY STALLED NW/SE ACROSS CNTRL/NRN AL....WHERE GREATEST TORNADIC THREAT WILL EXIST. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 21035. ...CORFIDI 360,0833 322,0861 322,0883 360,0860
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 8, 8:00 PM CST | Tornado Watch | SPC | Choctaw, Colbert, Cullman, Fayette, Franklin, Greene and 15 more | 6 hr |
| Nov 9, 12:00 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Butler, Choctaw, Clarke, Conecuh and 11 more | 5 hr |
| Nov 9, 3:15 AM CST | Tornado Watch | SPC | Autauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 21 more | 5 hr |
| Nov 9, 4:30 AM CST | Tornado Watch | SPC | Barbour, Butler, Coffee, Conecuh, Covington, Crenshaw and 8 more | 6 hr |
| Nov 9, 10:00 AM CST | Tornado Watch | SPC | Henry, Houston | 5 hr |
| Nov 9, 11:00 AM CST | Tornado Watch | SPC | Bedford, Bledsoe, Bradley, Cannon, Cheatham, Clay and 30 more | 5 hr |
| Nov 9, 2:00 PM CST | Tornado Watch | SPC | Anderson, Blount, Campbell, Claiborne, Cocke, Grainger and 15 more | 5 hr |
Nearby
Tornado Watches in Alabama, 2000Tornado Watches in Tennessee, 2000Tornado Watches in Georgia, 2000Every tornado watch in 2000
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.