Alert archive / Georgia / Tornado Watches in 2009

Tornado Watch 134

April 10, 200925 counties in Alabama; 42 counties in Georgia; 5 counties in North Carolina

The Storm Prediction Center issued this tornado watch at Apr 10, 2009, 2:39 PM CDT for 25 counties in Alabama; 42 counties in Georgia; 5 counties in North Carolina. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Apr 10, 2009, 2:39 PM CDT (19:39 UTC)
Expired
Apr 10, 2009, 10:33 PM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Particularly dangerous situation
Yes
Largest hail expected
3 in
Strongest gust expected
60 kt
All 72 counties

Autauga County, AL, Barbour County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Banks County, GA, Barrow County, GA, Bartow County, GA, Carroll County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Haralson County, GA, Heard County, GA, Henry County, GA, Jackson County, GA, Lumpkin County, GA, Madison County, GA, Murray County, GA, Newton County, GA, Oconee County, GA, Paulding County, GA, Pickens County, GA, Polk County, GA, Rabun County, GA, Rockdale County, GA, Stephens County, GA, Towns County, GA, Union County, GA, Walton County, GA, White County, GA, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Swain County, NC

The radar

The Northeast Alabama radar (KHTX), 144 km from the middle of the area, began a volume at 19:43 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
80%
One or more EF2 to EF5 tornadoes
60%
Ten or more severe wind reports
90%
One or more gusts of 65 knots or more
70%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
50%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

118 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 10, 3:18 PM CDTSevere Thunderstorm WarningBMXSt. Clair, Shelby, Talladega24 min
Apr 10, 3:30 PM CDTSevere Thunderstorm WarningBMXJefferson, St. Clair, Shelby30 min
Apr 10, 3:48 PM CDTSevere Thunderstorm WarningBMXCherokee42 min
Apr 10, 3:49 PM CDTSevere Thunderstorm WarningBMXSt. Clair, Shelby, Talladega41 min
Apr 10, 3:53 PM CDTTornado WarningFFCChattooga, Floyd, Walker37 min
Apr 10, 4:01 PM CDTSevere Thunderstorm WarningFFCChattooga, Floyd44 min
Apr 10, 4:05 PM CDTTornado WarningFFCGilmer, Gordon, Murray, Pickens25 min
Apr 10, 4:08 PM CDTSevere Thunderstorm WarningBMXBlount, Etowah52 min
Apr 10, 4:11 PM CDTSevere Thunderstorm WarningBMXBlount, Calhoun, Cherokee, Etowah, St. Clair34 min
Apr 10, 4:11 PM CDTTornado WarningBMXBlount, Etowah34 min
Apr 10, 4:11 PM CDTSevere Thunderstorm WarningFFCGordon, Murray, Whitfield49 min
Apr 10, 4:12 PM CDTSevere Thunderstorm WarningGSPGraham, Macon, Swain93 min
Apr 10, 4:13 PM CDTTornado WarningFFCChattooga, Floyd62 min
Apr 10, 4:15 PM CDTTornado WarningBMXCherokee45 min
Apr 10, 4:19 PM CDTTornado WarningFFCGordon, Murray, Whitfield41 min
Apr 10, 4:20 PM CDTSevere Thunderstorm WarningFFCLumpkin, White40 min
Apr 10, 4:26 PM CDTSevere Thunderstorm WarningFFCFannin, Gilmer, Murray64 min
Apr 10, 4:26 PM CDTTornado WarningFFCBartow, Gordon49 min
Apr 10, 4:28 PM CDTSevere Thunderstorm WarningBMXCalhoun, Clay, Cleburne, Randolph, St. Clair, Talladega47 min
Apr 10, 4:29 PM CDTTornado WarningFFCGilmer, Murray46 min
Apr 10, 4:31 PM CDTSevere Thunderstorm WarningBMXBlount, Jefferson44 min
Apr 10, 4:33 PM CDTSevere Thunderstorm WarningFFCForsyth, Fulton28 min
Apr 10, 4:35 PM CDTTornado WarningBMXCalhoun, Clay, Cleburne, Randolph, Talladega40 min
Apr 10, 4:36 PM CDTSevere Thunderstorm WarningFFCGwinnett, Hall14 min
Apr 10, 4:36 PM CDTTornado WarningFFCGordon24 min
Apr 10, 4:40 PM CDTTornado WarningFFCWhite23 min
Apr 10, 4:42 PM CDTTornado WarningBMXCherokee, Etowah48 min
Apr 10, 4:42 PM CDTTornado WarningFFCGilmer, Pickens48 min
Apr 10, 4:43 PM CDTSevere Thunderstorm WarningBMXBibb, Jefferson, Shelby, Talladega47 min
Apr 10, 4:43 PM CDTTornado WarningGSPHabersham, Rabun62 min
Apr 10, 4:53 PM CDTSevere Thunderstorm WarningFFCFannin, Gilmer37 min
Apr 10, 4:55 PM CDTSevere Thunderstorm WarningFFCHall50 min
Apr 10, 4:55 PM CDTSevere Thunderstorm WarningFFCCherokee, Pickens35 min
Apr 10, 4:57 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Jefferson, Shelby, Tuscaloosa48 min
Apr 10, 5:00 PM CDTSevere Thunderstorm WarningFFCCarroll, Heard60 min
Apr 10, 5:01 PM CDTSevere Thunderstorm WarningBMXClay, St. Clair, Shelby, Talladega44 min
Apr 10, 5:02 PM CDTTornado WarningFFCDawson, Gilmer, Lumpkin, Pickens43 min
Apr 10, 5:04 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph41 min
Apr 10, 5:07 PM CDTSevere Thunderstorm WarningFFCBartow, Cherokee53 min
Apr 10, 5:09 PM CDTTornado WarningBMXClay, Cleburne, Randolph29 min
Apr 10, 5:11 PM CDTSevere Thunderstorm WarningFFCDawson, Forsyth49 min
Apr 10, 5:12 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Etowah48 min
Apr 10, 5:13 PM CDTTornado WarningFFCBanks, Hall47 min
Apr 10, 5:14 PM CDTTornado WarningFFCCherokee, Dawson, Forsyth61 min
Apr 10, 5:17 PM CDTSevere Thunderstorm WarningFFCBartow28 min
Apr 10, 5:21 PM CDTSevere Thunderstorm WarningFFCLumpkin, Union, White39 min
Apr 10, 5:25 PM CDTTornado WarningFFCCarroll, Heard50 min
Apr 10, 5:26 PM CDTSevere Thunderstorm WarningFFCHall, Lumpkin34 min
Apr 10, 5:28 PM CDTTornado WarningGSPFranklin, Stephens47 min
Apr 10, 5:29 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Etowah, St. Clair61 min
Apr 10, 5:31 PM CDTTornado WarningFFCHall44 min
Apr 10, 5:34 PM CDTSevere Thunderstorm WarningBMXShelby, Talladega41 min
Apr 10, 5:34 PM CDTSevere Thunderstorm WarningFFCChattooga, Floyd41 min
Apr 10, 5:37 PM CDTSevere Thunderstorm WarningBMXCalhoun, Cherokee, Cleburne, Etowah, St. Clair23 min
Apr 10, 5:38 PM CDTTornado WarningBMXCalhoun, Cherokee, Cleburne, Etowah52 min
Apr 10, 5:38 PM CDTSevere Thunderstorm WarningFFCCoweta67 min
Apr 10, 5:43 PM CDTTornado WarningFFCBartow, Cherokee47 min
Apr 10, 5:44 PM CDTSevere Thunderstorm WarningBMXChilton, Clay, Coosa, Shelby, Talladega, Tallapoosa46 min
Apr 10, 5:45 PM CDTTornado WarningBMXCalhoun, Cleburne, Etowah, St. Clair60 min
Apr 10, 5:50 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Shelby21 min
Apr 10, 5:50 PM CDTTornado WarningFFCGwinnett, Hall25 min
Apr 10, 5:52 PM CDTSevere Thunderstorm WarningFFCGwinnett, Hall53 min
Apr 10, 5:58 PM CDTSevere Thunderstorm WarningFFCForsyth, Fulton47 min
Apr 10, 6:00 PM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph, Shelby, Talladega60 min
Apr 10, 6:01 PM CDTSevere Thunderstorm WarningFFCBanks, Jackson44 min
Apr 10, 6:02 PM CDTTornado WarningBMXChilton, Coosa, Tallapoosa58 min
Apr 10, 6:04 PM CDTTornado WarningFFCCoweta, Fayette43 min
Apr 10, 6:08 PM CDTSevere Thunderstorm WarningFFCBartow52 min
Apr 10, 6:12 PM CDTSevere Thunderstorm WarningFFCFloyd, Polk48 min
Apr 10, 6:15 PM CDTSevere Thunderstorm WarningBMXChambers, Clay, Coosa, Randolph, Talladega, Tallapoosa60 min
Apr 10, 6:16 PM CDTTornado WarningFFCBanks, Jackson, Madison29 min
Apr 10, 6:19 PM CDTTornado WarningFFCForsyth, Fulton, Gwinnett41 min
Apr 10, 6:20 PM CDTTornado WarningFFCHeard40 min
Apr 10, 6:24 PM CDTSevere Thunderstorm WarningBMXBibb, Chilton, Coosa, Perry51 min
Apr 10, 6:26 PM CDTTornado WarningFFCBartow, Paulding, Polk49 min
Apr 10, 6:28 PM CDTTornado WarningFFCClayton, Fayette, Henry, Spalding45 min
Apr 10, 6:28 PM CDTTornado WarningFFCJackson, Madison47 min
Apr 10, 6:32 PM CDTTornado WarningBMXCoosa, Elmore, Tallapoosa28 min
Apr 10, 6:35 PM CDTTornado WarningFFCCarroll, Haralson, Paulding40 min
Apr 10, 6:37 PM CDTTornado WarningFFCBarrow, Gwinnett, Jackson53 min
Apr 10, 6:42 PM CDTSevere Thunderstorm WarningFFCCherokee, Cobb, Forsyth, Fulton, Gwinnett48 min
Apr 10, 6:45 PM CDTSevere Thunderstorm WarningFFCCoweta60 min
Apr 10, 6:50 PM CDTTornado WarningFFCClarke, Jackson, Madison, Oglethorpe40 min
Apr 10, 6:54 PM CDTTornado WarningFFCForsyth, Fulton, Gwinnett36 min
Apr 10, 6:55 PM CDTTornado WarningBMXChambers, Elmore, Lee, Tallapoosa65 min
Apr 10, 6:57 PM CDTSevere Thunderstorm WarningBMXChilton, Coosa, Elmore, Tallapoosa63 min
Apr 10, 6:59 PM CDTSevere Thunderstorm WarningFFCCobb, Fulton31 min
Apr 10, 7:01 PM CDTSevere Thunderstorm WarningFFCButts, Jasper, Newton44 min
Apr 10, 7:05 PM CDTTornado WarningBMXChambers, Elmore, Lee, Macon, Tallapoosa55 min
Apr 10, 7:07 PM CDTSevere Thunderstorm WarningBMXChambers, Lee, Tallapoosa38 min
Apr 10, 7:07 PM CDTSevere Thunderstorm WarningFFCFayette, Spalding53 min
Apr 10, 7:08 PM CDTSevere Thunderstorm WarningFFCClayton, Cobb, Douglas, Fulton, Paulding52 min
Apr 10, 7:14 PM CDTSevere Thunderstorm WarningFFCGwinnett31 min
Apr 10, 7:18 PM CDTSevere Thunderstorm WarningBMXAutauga, Dallas, Lowndes, Montgomery, Perry57 min
Apr 10, 7:23 PM CDTSevere Thunderstorm WarningFFCClarke, Jackson, Madison, Oglethorpe52 min
Apr 10, 7:26 PM CDTSevere Thunderstorm WarningFFCClayton, DeKalb, Gwinnett, Henry, Rockdale, Walton49 min
Apr 10, 7:33 PM CDTSevere Thunderstorm WarningFFCCarroll, Haralson, Paulding27 min
Apr 10, 7:39 PM CDTSevere Thunderstorm WarningFFCButts, Clayton, Henry55 min
Apr 10, 7:41 PM CDTTornado WarningBMXLee, Macon, Russell49 min
Apr 10, 7:45 PM CDTTornado WarningBMXElmore, Lee, Macon, Tallapoosa60 min
Apr 10, 7:49 PM CDTTornado WarningFFCDeKalb, Gwinnett23 min
Apr 10, 7:53 PM CDTSevere Thunderstorm WarningFFCBarrow, Gwinnett, Oconee, Walton37 min
Apr 10, 7:54 PM CDTTornado WarningFFCButts, Henry, Spalding51 min
Apr 10, 7:58 PM CDTSevere Thunderstorm WarningBMXAutauga, Bullock, Elmore, Macon, Montgomery62 min
Apr 10, 8:09 PM CDTTornado WarningFFCDeKalb, Newton, Rockdale, Walton39 min
Apr 10, 8:20 PM CDTSevere Thunderstorm WarningFFCCobb, DeKalb, Fulton, Gwinnett28 min
Apr 10, 8:24 PM CDTTornado WarningBMXLee, Russell21 min
Apr 10, 8:26 PM CDTSevere Thunderstorm WarningBMXAutauga, Dallas, Lowndes, Montgomery64 min
Apr 10, 8:32 PM CDTSevere Thunderstorm WarningFFCDeKalb, Fulton, Rockdale43 min
Apr 10, 8:35 PM CDTTornado WarningFFCGreene, Morgan, Oconee, Oglethorpe40 min
Apr 10, 8:37 PM CDTTornado WarningBMXLee, Macon, Russell68 min
Apr 10, 8:47 PM CDTTornado WarningBMXBullock, Macon, Montgomery58 min
Apr 10, 8:49 PM CDTSevere Thunderstorm WarningFFCClayton, DeKalb, Henry, Newton, Rockdale, Walton32 min
Apr 10, 9:07 PM CDTSevere Thunderstorm WarningFFCButts, Henry, Jasper, Newton68 min
Apr 10, 9:13 PM CDTSevere Thunderstorm WarningFFCGreene, Jasper, Morgan, Newton, Putnam, Walton62 min
Apr 10, 9:33 PM CDTTornado WarningBMXBarbour, Bullock, Macon, Russell57 min
Apr 10, 9:34 PM CDTTornado WarningFFCButts, Jasper, Newton30 min
Apr 10, 9:42 PM CDTSevere Thunderstorm WarningFFCButts, Henry, Jasper, Lamar, Monroe, Spalding48 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.7 hours before the alert went out and 153 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2009-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2009-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
671 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
292 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 1:24 AM CDTMesoscale DiscussionSPCColbert, Fayette, Franklin, Lamar, Lauderdale, Marion and 1 more96 min
Apr 10, 1:43 AM CDTTornado WatchSPCBlount, Colbert, Cullman, Fayette, Franklin, Greene and 12 more5 hr
Apr 10, 4:25 AM CDTMesoscale DiscussionSPCBlount, Calhoun, Cherokee, Cleburne, Cullman, DeKalb and 13 more95 min
Apr 10, 8:22 AM CDTMesoscale DiscussionSPCLauderdale83 min
Apr 10, 11:14 AM CDTMesoscale DiscussionSPCColbert, Franklin, Jackson, Lauderdale, Lawrence, Limestone and 4 more76 min
Apr 10, 11:23 AM CDTTornado Watch PDSSPCBibb, Blount, Calhoun, Cherokee, Cleburne, Colbert and 25 more8 hr
Apr 10, 12:58 PM CDTMesoscale DiscussionSPCColbert, Cullman, Fayette, Franklin, Jackson, Lamar and 8 more92 min
Apr 10, 2:29 PM CDTMesoscale DiscussionSPCCleburne91 min
Apr 10, 3:43 PM CDTMesoscale DiscussionSPCBlount, Calhoun, Cherokee, Cleburne, DeKalb, Etowah and 4 more92 min
Apr 10, 6:34 PM CDTMesoscale DiscussionSPCAutauga, Calhoun, Chambers, Chilton, Clay, Cleburne and 9 more56 min
Apr 10, 7:04 AM CDTMesoscale DiscussionSPCBanks, Bartow, Chattooga, Cherokee, Cobb, Dawson and 23 more86 min
Apr 10, 5:11 PM CDTMesoscale DiscussionSPCBaldwin, Bibb, Butts, Clarke, Columbia, Crawford and 32 more64 min
Apr 10, 5:31 PM CDTTornado WatchSPCBaldwin, Bibb, Bleckley, Butts, Chattahoochee, Columbia and 53 more7 hr
Apr 10, 3:42 PM CDTMesoscale DiscussionSPCAlleghany, Ashe, Avery, Caldwell, Mitchell, Surry and 2 more63 min
Apr 10, 6:53 PM CDTMesoscale DiscussionSPCMitchell67 min
Apr 9, 10:48 PM CDTTornado WatchSPCCrockett, Dyer, Fayette, Gibson, Haywood, Lake and 4 more4 hr
Apr 10, 12:50 AM CDTMesoscale DiscussionSPCBenton, Carroll, Cheatham, Chester, Davidson, Decatur and 16 more85 min
Apr 10, 1:22 AM CDTSevere Thunderstorm WatchSPCBedford, Benton, Carroll, Cheatham, Chester, Davidson and 28 more4 hr
Apr 10, 3:33 AM CDTMesoscale DiscussionSPCBedford, Cannon, Cheatham, Clay, Coffee, Davidson and 24 more57 min
Apr 10, 8:53 AM CDTTornado WatchSPCBedford, Benton, Cannon, Carroll, Cheatham, Chester and 46 more7 hr
Apr 10, 1:51 PM CDTTornado WatchSPCCarter, Claiborne, Cocke, Grainger, Greene, Hamblen and 8 more6 hr

Nearby

Tornado Watches in Georgia, 2009Tornado Watches in Alabama, 2009Tornado Watches in North Carolina, 2009Every tornado watch in 2009

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.