Alert archive / Alabama / Mesoscale Discussions in 2025

Mesoscale Discussion 856

May 18, 202516 counties in Alabama; 16 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at May 18, 2025, 9:54 AM CDT for 16 counties in Alabama; 16 counties in Mississippi. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 18, 2025, 9:54 AM CDT (14:54 UTC)
Expired: May 18, 2025, 12:30 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 60%

All 32 counties

Autauga County, AL, Bibb County, AL, Chilton County, AL, Coosa County, AL, Dallas County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Perry County, AL, Pickens County, AL, Shelby County, AL, Sumter County, AL, Tuscaloosa County, AL, Walker County, AL, Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Grenada County, MS, Kemper County, MS, Lowndes County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Noxubee County, MS, Oktibbeha County, MS, Webster County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 61 km from the middle of the area, began a volume at 14:54 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 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 18, 6:40 AM CDT	Mesoscale Discussion	SPC	Bibb, Chambers, Clay, Coosa, Jefferson, Randolph and 3 more	65 min
May 18, 7:14 AM CDT	Severe Thunderstorm Watch	SPC	Calhoun, Chambers, Clay, Cleburne, Randolph, Tallapoosa	4 hr
May 18, 2:35 AM CDT	Mesoscale Discussion	SPC	Calhoun, Carroll, Chickasaw, Choctaw, Clay, Grenada and 10 more	55 min
May 18, 6:56 AM CDT	Mesoscale Discussion	SPC	Bolivar, Calhoun, Carroll, Choctaw, Coahoma, Grenada and 11 more	2 hr

Nearby

Mesoscale Discussions in Alabama, 2025 Mesoscale Discussions in Mississippi, 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; radar from the NEXRAD Level II archive.