Alert archive / Mississippi / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 293, NWS Jackson, MS

August 20, 20268 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Aug 20, 2026, 4:23 PM CDT for 8 counties in Mississippi. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 20, 2026, 4:23 PM CDT (21:23 UTC)
Expired: Aug 20, 2026, 5:30 PM CDT
In force: 67 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Carroll County, MS, Choctaw County, MS, Clay County, MS, Grenada County, MS, Montgomery County, MS, Oktibbeha County, MS, Webster County, MS, Winston County, MS

The radar

The Columbus AFB radar (KGWX), 103 km from the middle of the area, began a volume at 21:24 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 12:00Z, 9.4 hours before the alert went out and 238 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: 2061 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -40 m²/s²
0-3 km storm-relative helicity: 9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 20, 3:30 PM CDT, 53 minutes earlier.

Area forecast discussion, Aug 20, 3:30 PM CDT, 53 minutes before

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In the hours before

Special weather statement, Aug 20, 2:31 PM CDT, 1 hour 52 minutes before

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Special weather statement, Aug 20, 2:48 PM CDT, 1 hour 35 minutes before

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Special weather statement, Aug 20, 3:15 PM CDT, 1 hour 8 minutes before

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Special weather statement, Aug 20, 3:27 PM CDT, 56 minutes before

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Special weather statement, Aug 20, 3:42 PM CDT, 41 minutes before

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Special weather statement, Aug 20, 3:55 PM CDT, 28 minutes before

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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 19, 7:13 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jasper, Jones, Smith	62 min
Aug 19, 7:16 PM CDT	Special Weather Statement	JAN	Jasper, Newton, Rankin, Scott, Smith	59 min
Aug 19, 7:20 PM CDT	Special Weather Statement	JAN	Hinds	55 min
Aug 19, 7:23 PM CDT	Special Weather Statement	JAN	Lauderdale	67 min
Aug 19, 8:05 PM CDT	Special Weather Statement	JAN	Lauderdale	40 min
Aug 20, 12:46 PM CDT	Heat Advisory	JAN	Attala, Bolivar, Carroll, Choctaw, Clarke, Clay and 24 more	31 hr
Aug 20, 12:46 PM CDT	Extreme Heat Warning	JAN	Adams, Claiborne, Copiah, Franklin, Hinds, Issaquena and 11 more	31 hr
Aug 20, 2:48 PM CDT	Special Weather Statement	JAN	Scott	57 min
Aug 20, 3:15 PM CDT	Special Weather Statement	JAN	Winston	60 min
Aug 20, 3:19 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	56 min
Aug 20, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Clay, Oktibbeha, Webster	64 min
Aug 20, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Jefferson Davis, Lawrence, Simpson	54 min
Aug 20, 3:42 PM CDT	Special Weather Statement	JAN	Forrest, Lamar, Marion	63 min
Aug 20, 3:55 PM CDT	Special Weather Statement	JAN	Grenada, Montgomery	65 min
Aug 20, 3:59 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jefferson Davis, Lawrence, Simpson, Smith	61 min
Aug 20, 4:03 PM CDT	Severe Thunderstorm Warning	JAN	Washington	42 min
Aug 20, 4:06 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne, Copiah, Hinds, Lawrence, Lincoln, Simpson	39 min
Aug 20, 4:11 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Lowndes, Noxubee, Oktibbeha, Winston	49 min
Aug 20, 4:22 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore, Sharkey, Sunflower and 2 more	46 min
Aug 20, 4:49 PM CDT	Severe Thunderstorm Warning	JAN	Jasper	38 min
Aug 20, 4:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	Bolivar, Issaquena, Sharkey, Washington	77 min
Aug 20, 5:14 PM CDT	Severe Thunderstorm Warning	JAN	Forrest	61 min
Aug 20, 5:23 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Carroll, Choctaw, Grenada, Montgomery, Webster	67 min
Aug 20, 5:42 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Holmes, Humphreys, Leflore, Sunflower, Washington	63 min
Aug 20, 5:58 PM CDT	Special Weather Statement	JAN	Clarke, Jasper	32 min
Aug 20, 6:24 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Choctaw, Grenada, Montgomery, Oktibbeha, Webster	81 min
Aug 20, 6:31 PM CDT	Severe Thunderstorm Warning	JAN	Clarke, Jasper, Jones	59 min
Aug 20, 6:06 PM CDT	Severe Thunderstorm Warning	JAN	Morehouse, West Carroll	69 min
Aug 20, 2:31 PM CDT	Special Weather Statement	JAN	Chicot	59 min
Aug 20, 3:27 PM CDT	Special Weather Statement	JAN	Chicot	33 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2026 Every severe thunderstorm warning in 2026

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.