Alert archive / Mississippi / Mesoscale Discussions in 2025

Mesoscale Discussion 201

March 15, 202524 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Mar 15, 2025, 11:20 AM CDT for 24 counties in Mississippi. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Mar 15, 2025, 11:20 AM CDT (16:20 UTC)
Expired: Mar 15, 2025, 12:45 PM CDT
In force: 85 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 45

All 24 counties

Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clay County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Leflore County, MS, Monroe County, MS, Montgomery County, MS, Oktibbeha County, MS, Pontotoc County, MS, Prentiss County, MS, Sharkey County, MS, Union County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS

The radar

The Columbus AFB radar (KGWX), 122 km from the middle of the area, began a volume at 16:20 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

Little Rock, AR (KLZK), launched 12:00Z, 4.3 hours before the alert went out and 139 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3142 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -80 m²/s²
0-3 km storm-relative helicity: -58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Mar 14, 7:34 PM CDT	Tornado Watch PDS	SPC	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	10 hr
Mar 14, 8:15 PM CDT	Mesoscale Discussion	SPC	Attala, Bolivar, Calhoun, Carroll, Coahoma, Grenada and 14 more	2 hr
Mar 14, 9:47 PM CDT	Tornado Watch	SPC	Attala, Bolivar, Carroll, Choctaw, Claiborne, Clay and 27 more	7 hr
Mar 14, 11:39 PM CDT	Mesoscale Discussion	SPC	Attala, Bolivar, Calhoun, Carroll, Chickasaw, Choctaw and 21 more	96 min
Mar 14, 11:50 PM CDT	Mesoscale Discussion	SPC	Alcorn, Benton, Coahoma, DeSoto, Lafayette, Lee and 9 more	115 min
Mar 15, 12:49 AM CDT	Mesoscale Discussion	SPC	Calhoun, Chickasaw, Choctaw, Clay, Itawamba, Kemper and 14 more	86 min
Mar 15, 4:49 AM CDT	Mesoscale Discussion	SPC	Benton, Bolivar, Carroll, Coahoma, DeSoto, Grenada and 17 more	86 min
Mar 15, 5:58 AM CDT	Tornado Watch	SPC	Alcorn, Benton, Bolivar, Calhoun, Carroll, Chickasaw and 29 more	7 hr
Mar 15, 8:04 AM CDT	Mesoscale Discussion	SPC	Alcorn, Benton, Bolivar, Calhoun, Carroll, Chickasaw and 26 more	86 min
Mar 15, 9:25 AM CDT	Mesoscale Discussion	SPC	Alcorn, Attala, Benton, Bolivar, Calhoun, Carroll and 31 more	95 min
Mar 15, 10:07 AM CDT	Mesoscale Discussion	SPC	Adams, Amite, Attala, Calhoun, Carroll, Chickasaw and 54 more	113 min
Mar 15, 10:31 AM CDT	Tornado Watch PDS	SPC	Adams, Alcorn, Amite, Attala, Benton, Calhoun and 61 more	9 hr
Mar 15, 11:19 AM CDT	Mesoscale Discussion	SPC	George, Greene, Jackson, Stone	86 min
Mar 15, 11:53 AM CDT	Mesoscale Discussion	SPC	Amite, Attala, Clarke, Copiah, Covington, Forrest and 24 more	97 min
Mar 15, 12:25 PM CDT	Tornado Watch PDS	SPC	George, Greene, Perry, Stone, Wayne	9 hr
Mar 15, 12:51 PM CDT	Mesoscale Discussion	SPC	Covington, Jefferson Davis, Lawrence, Marion, Walthall	54 min
Mar 15, 1:16 PM CDT	Mesoscale Discussion	SPC	Calhoun, Chickasaw, Choctaw, Clay, Itawamba, Lee and 6 more	89 min
Mar 15, 1:31 PM CDT	Mesoscale Discussion	SPC	Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 11 more	119 min
Mar 15, 2:07 PM CDT	Mesoscale Discussion	SPC	Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 12 more	83 min
Mar 15, 3:29 PM CDT	Mesoscale Discussion	SPC	Clarke, Covington, Forrest, George, Greene, Jasper and 12 more	2 hr
Mar 15, 3:40 PM CDT	Mesoscale Discussion	SPC	Hancock, Harrison, Jackson	95 min
Mar 15, 6:18 PM CDT	Mesoscale Discussion	SPC	George, Greene, Hancock, Harrison, Jackson, Perry and 2 more	3 hr

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.