Alert archive / Alabama / Mesoscale Discussions in 2025

Mesoscale Discussion 985

May 25, 202522 counties in Alabama; 12 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at May 25, 2025, 11:43 PM CDT for 22 counties in Alabama; 12 counties in Georgia. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: May 25, 2025, 11:43 PM CDT (04:43 UTC)
Expired: May 26, 2025, 1:15 AM CDT
In force: 92 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 328

All 34 counties

Autauga County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Chambers County, AL, Chilton County, AL, Clay County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Montgomery County, AL, Perry County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, Talladega County, AL, Tallapoosa County, AL, Wilcox County, AL, Chattahoochee County, GA, Coweta County, GA, Harris County, GA, Heard County, GA, Marion County, GA, Meriwether County, GA, Muscogee County, GA, Pike County, GA, Quitman County, GA, Stewart County, GA, Talbot County, GA, Troup County, GA

The radar

The Maxwell AFB radar (KMXX), 39 km from the middle of the area, began a volume at 04:42 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 4.7 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2131 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 949 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 7:03 PM CDT	Mesoscale Discussion	SPC	Bibb, Blount, Calhoun, Cherokee, Colbert, Cullman and 24 more	87 min
May 25, 7:56 PM CDT	Severe Thunderstorm Watch	SPC	Autauga, Barbour, Bibb, Bullock, Butler, Calhoun and 31 more	5 hr
May 25, 9:41 PM CDT	Mesoscale Discussion	SPC	Autauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 22 more	94 min
May 25, 10:04 PM CDT	Mesoscale Discussion	SPC	Clarke, Washington	86 min
May 26, 3:46 PM CDT	Mesoscale Discussion	SPC	Autauga, Butler, Choctaw, Clarke, Conecuh, Dallas and 7 more	89 min
May 26, 4:00 PM CDT	Severe Thunderstorm Watch	SPC	Autauga, Barbour, Bibb, Bullock, Butler, Chambers and 23 more	5 hr
May 26, 5:45 PM CDT	Mesoscale Discussion	SPC	Autauga, Butler, Chilton, Clarke, Conecuh, Crenshaw and 12 more	60 min

Nearby

Mesoscale Discussions in Alabama, 2025 Mesoscale Discussions in Georgia, 2025 Every mesoscale discussion in 2025

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.