Alert archive / Alabama / Tornado Watches in 2024

Tornado Watch 217

May 9, 202428 counties in Alabama; 25 counties in Georgia

The Storm Prediction Center issued this tornado watch at May 9, 2024, 8:51 AM CDT for 28 counties in Alabama; 25 counties in Georgia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 9, 2024, 8:51 AM CDT (13:51 UTC)
Expired
May 9, 2024, 3:03 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 53 counties

Autauga County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Hale County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Montgomery County, AL, Perry County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Bleckley County, GA, Chattahoochee County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Harris County, GA, Johnson County, GA, Laurens County, GA, Macon County, GA, Marion County, GA, Montgomery County, GA, Muscogee County, GA, Pulaski County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA

The radar

The Maxwell AFB radar (KMXX), 33 km from the middle of the area, began a volume at 13:53 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
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
80%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 9, 8:57 AM CDTSevere Thunderstorm WarningBMXCalhoun, St. Clair, Shelby, Talladega63 min
May 9, 9:36 AM CDTSevere Thunderstorm WarningFFCTalbot, Taylor24 min
May 9, 9:43 AM CDTSevere Thunderstorm WarningFFCHarris, Talbot32 min
May 9, 9:46 AM CDTSevere Thunderstorm WarningBMXClay, Cleburne, Randolph59 min
May 9, 10:16 AM CDTSevere Thunderstorm WarningFFCCrawford, Macon, Peach, Taylor29 min
May 9, 10:16 AM CDTSevere Thunderstorm WarningFFCHarris, Talbot29 min
May 9, 10:53 AM CDTFlash Flood WarningBMXClay, Talladega3 hr
May 9, 11:30 AM CDTSevere Thunderstorm WarningFFCMacon, Marion, Schley, Sumter, Webster45 min
May 9, 11:32 AM CDTSevere Thunderstorm WarningFFCBleckley, Dodge, Houston, Laurens, Pulaski, Twiggs43 min
May 9, 11:33 AM CDTTornado WarningFFCMacon, Marion, Schley, Sumter27 min
May 9, 11:56 AM CDTTornado WarningFFCDodge, Laurens34 min
May 9, 12:02 PM CDTTornado WarningFFCDooly, Macon, Schley, Sumter43 min
May 9, 12:09 PM CDTTornado WarningFFCDodge, Laurens, Montgomery, Treutlen, Wheeler35 min
May 9, 12:28 PM CDTTornado WarningFFCCrisp, Dooly, Wilcox27 min
May 9, 12:35 PM CDTSevere Thunderstorm WarningFFCMontgomery, Toombs, Wheeler40 min
May 9, 12:43 PM CDTTornado Warning Tornado observedFFCMontgomery, Toombs, Wheeler32 min
May 9, 12:54 PM CDTSevere Thunderstorm WarningFFCDodge, Telfair, Wilcox51 min
May 9, 1:28 PM CDTSevere Thunderstorm WarningFFCStewart, Sumter, Webster47 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, 1.9 hours before the alert went out and 120 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 2024-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1170 joules per kilogram.LCLLFCEL10008507005003002001001 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 2024-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939587897Sfc1 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
1170 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.4
Supercell composite
1.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 8, 7:42 PM CDTMesoscale DiscussionSPCColbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 5 more2 hr
May 8, 10:11 PM CDTTornado WatchSPCDeKalb, Jackson, Limestone, Madison, Marshall5 hr
May 8, 10:50 PM CDTMesoscale DiscussionSPCDeKalb, Jackson, Madison85 min
May 9, 2:10 AM CDTMesoscale DiscussionSPCColbert, Cullman, DeKalb, Franklin, Jackson, Lauderdale and 7 more2 hr
May 9, 3:02 AM CDTTornado WatchSPCBlount, Calhoun, Cherokee, Clay, Cleburne, Colbert and 23 more7 hr
May 9, 4:26 AM CDTMesoscale DiscussionSPCCherokee, DeKalb, Etowah, Jackson, Madison, Marshall2 hr
May 9, 7:48 AM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more117 min
May 9, 9:39 AM CDTMesoscale DiscussionSPCBarbour, Bullock, Chambers, Dale, Elmore, Henry and 5 more96 min
May 9, 12:47 PM CDTTornado WatchSPCDale, Henry, Houston7 hr
May 9, 4:39 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Chilton, Coosa and 20 more96 min
May 9, 4:58 PM CDTSevere Thunderstorm WatchSPCAutauga, Barbour, Bibb, Bullock, Chambers, Chilton and 25 more6 hr
May 8, 9:31 PM CDTMesoscale DiscussionSPCElbert, Franklin, Habersham, Hart, Rabun, Stephens and 1 more89 min
May 9, 1:16 AM CDTMesoscale DiscussionSPCBanks, Barrow, Bartow, Chattooga, Cherokee, Clarke and 24 more119 min
May 9, 4:45 AM CDTTornado WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Burke and 75 more9 hr
May 9, 11:12 AM CDTTornado WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more5 hr
May 9, 12:25 PM CDTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 35 more95 min
May 9, 3:36 PM CDTMesoscale DiscussionSPCCamden, Charlton, Clinch, Echols, Glynn, Ware54 min

Nearby

Tornado Watches in Alabama, 2024Tornado Watches in Georgia, 2024Every tornado watch in 2024

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.