Alert archive / Alabama / Tornado Watches in 2010
Tornado Watch 711
The Storm Prediction Center issued this tornado watch at Oct 25, 2010, 1:33 AM CDT for 49 counties in Alabama; 12 counties in Georgia. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 25, 2010, 1:33 AM CDT (06:33 UTC)
- Expired
- Oct 25, 2010, 10:00 AM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 61 counties
Autauga County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Choctaw County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Crenshaw County, AL, Cullman County, AL, Dallas County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jackson County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Madison County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Montgomery County, AL, Morgan County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Wilcox County, AL, Winston County, AL, Carroll County, GA, Catoosa County, GA, Chattooga County, GA, Dade County, GA, Floyd County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Polk County, GA, Troup County, GA, Walker County, GA, Whitfield County, GA
The radar
The Birmingham radar (KBMX), 57 km from the middle of the area, began a volume at 06:35 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
37 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 1:34 AM CDT | Severe Thunderstorm Warning | BMX | Fayette, Greene, Lamar, Pickens | 41 min |
| Oct 25, 1:44 AM CDT | Severe Thunderstorm Warning | BMX | Fayette, Lamar, Marion, Walker, Winston | 31 min |
| Oct 25, 1:53 AM CDT | Severe Thunderstorm Warning | HUN | Jackson, Madison | 27 min |
| Oct 25, 2:09 AM CDT | Severe Thunderstorm Warning | BMX | Greene, Pickens, Sumter | 51 min |
| Oct 25, 2:14 AM CDT | Severe Thunderstorm Warning | BMX | Walker, Winston | 46 min |
| Oct 25, 2:38 AM CDT | Severe Thunderstorm Warning | HUN | Cullman, Lawrence, Morgan | 22 min |
| Oct 25, 2:49 AM CDT | Tornado Warning | HUN | Morgan | 16 min |
| Oct 25, 3:00 AM CDT | Severe Thunderstorm Warning | BMX | Bibb, Blount, Hale, Jefferson, Shelby, Tuscaloosa and 1 more | 45 min |
| Oct 25, 3:01 AM CDT | Severe Thunderstorm Warning | HUN | Cullman | 44 min |
| Oct 25, 3:04 AM CDT | Severe Thunderstorm Warning | BMX | Blount | 41 min |
| Oct 25, 3:08 AM CDT | Severe Thunderstorm Warning | HUN | Madison, Marshall, Morgan | 22 min |
| Oct 25, 3:15 AM CDT | Tornado Warning | HUN | Cullman, Marshall, Morgan | 30 min |
| Oct 25, 3:19 AM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 41 min |
| Oct 25, 3:23 AM CDT | Severe Thunderstorm Warning | BMX | Bibb, Chilton, Dallas, Hale, Marengo, Perry | 52 min |
| Oct 25, 3:33 AM CDT | Severe Thunderstorm Warning | HUN | Jackson | 34 min |
| Oct 25, 3:37 AM CDT | Tornado Warning | HUN | DeKalb, Jackson, Marshall | 23 min |
| Oct 25, 3:42 AM CDT | Severe Thunderstorm Warning | BMX | Bibb, Blount, Chilton, Etowah, Jefferson, St. Clair and 2 more | 48 min |
| Oct 25, 3:54 AM CDT | Tornado Warning | HUN | DeKalb, Jackson, Marshall | 21 min |
| Oct 25, 3:57 AM CDT | Severe Thunderstorm Warning | HUN | Jackson | 48 min |
| Oct 25, 4:08 AM CDT | Severe Thunderstorm Warning | BMX | Autauga, Bibb, Chilton, Dallas, Perry | 52 min |
| Oct 25, 4:08 AM CDT | Tornado Warning | HUN | DeKalb | 22 min |
| Oct 25, 4:08 AM CDT | Tornado Warning | HUN | DeKalb, Jackson | 19 min |
| Oct 25, 4:15 AM CDT | Severe Thunderstorm Warning | BMX | Bibb, Calhoun, Cherokee, Chilton, Etowah, St. Clair and 2 more | 45 min |
| Oct 25, 4:17 AM CDT | Severe Thunderstorm Warning | FFC | Dade, Walker | 43 min |
| Oct 25, 4:20 AM CDT | Tornado Warning | FFC | Dade, Walker | 25 min |
| Oct 25, 4:26 AM CDT | Tornado Warning | HUN | DeKalb | 7 min |
| Oct 25, 4:26 AM CDT | Severe Thunderstorm Warning | FFC | Chattooga | 49 min |
| Oct 25, 4:37 AM CDT | Severe Thunderstorm Warning | FFC | Catoosa, Walker, Whitfield | 23 min |
| Oct 25, 4:42 AM CDT | Severe Thunderstorm Warning | BMX | Calhoun, Cherokee, Clay, Cleburne, Randolph, Talladega | 48 min |
| Oct 25, 4:49 AM CDT | Severe Thunderstorm Warning | FFC | Bartow, Floyd, Gordon | 41 min |
| Oct 25, 5:04 AM CDT | Severe Thunderstorm Warning | FFC | Gilmer, Murray, Whitfield | 31 min |
| Oct 25, 5:07 AM CDT | Severe Thunderstorm Warning | FFC | Haralson, Polk | 38 min |
| Oct 25, 5:28 AM CDT | Severe Thunderstorm Warning | BMX | Clay, Cleburne, Randolph | 47 min |
| Oct 25, 5:40 AM CDT | Severe Thunderstorm Warning | FFC | Carroll, Douglas, Heard | 50 min |
| Oct 25, 6:39 AM CDT | Severe Thunderstorm Warning | BMX | Lowndes, Montgomery | 51 min |
| Oct 25, 8:13 AM CDT | Severe Thunderstorm Warning | MOB | Butler, Conecuh, Covington, Escambia | 2 min |
| Oct 25, 8:18 AM CDT | Severe Thunderstorm Warning | MOB | Covington, Crenshaw | 42 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, 6.6 hours before the alert went out and 56 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
- 65 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1728 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 8:23 PM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Calhoun, Cherokee, Colbert, Cullman and 23 more | 67 min |
| Oct 24, 8:46 PM CDT | Severe Thunderstorm Watch | SPC | Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 37 more | 7 hr |
| Oct 24, 11:35 PM CDT | Mesoscale Discussion | SPC | Bibb, Blount, Calhoun, Cherokee, Clay, Cleburne and 24 more | 55 min |
| Oct 25, 4:07 AM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Butler, Calhoun and 27 more | 113 min |
| Oct 25, 6:34 AM CDT | Tornado Watch | SPC | Baldwin, Butler, Coffee, Conecuh, Covington, Crenshaw and 5 more | 6 hr |
| Oct 25, 6:49 AM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Crenshaw, Elmore, Lee and 6 more | 116 min |
| Oct 25, 10:51 AM CDT | Mesoscale Discussion | SPC | Coffee, Conecuh, Covington, Dale, Escambia, Geneva and 2 more | 54 min |
| Oct 25, 4:35 AM CDT | Tornado Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 85 more | 7 hr |
| Oct 25, 7:23 AM CDT | Severe Thunderstorm Watch | SPC | Burke, Columbia, Lincoln, McDuffie, Richmond | 7 hr |
| Oct 25, 8:56 AM CDT | Mesoscale Discussion | SPC | Appling, Bacon, Ben Hill, Bleckley, Bryan, Bulloch and 31 more | 2 hr |
| Oct 25, 10:36 AM CDT | Severe Thunderstorm Watch | SPC | Bryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more | 8 hr |
| Oct 25, 12:44 PM CDT | Mesoscale Discussion | SPC | Bleckley, Bulloch, Burke, Candler, Crisp, Dodge and 18 more | 31 min |
| Oct 25, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | Bibb, Bleckley, Chattahoochee, Crawford, Crisp, Dodge and 24 more | 6 hr |
| Oct 25, 2:06 PM CDT | Tornado Watch | SPC | Bleckley, Bulloch, Burke, Candler, Dodge, Dooly and 15 more | 5 hr |
| Oct 25, 2:42 PM CDT | Mesoscale Discussion | SPC | Bryan, Bulloch, Candler, Chatham, Effingham, Evans and 9 more | 63 min |
| Oct 25, 5:36 PM CDT | Mesoscale Discussion | SPC | Bleckley, Bryan, Bulloch, Candler, Chatham, Crisp and 21 more | 54 min |
Nearby
Tornado Watches in Alabama, 2010Tornado Watches in Georgia, 2010Every tornado watch in 2010
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.