Alert archive / Mississippi / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 404, NWS Jackson, MS

September 21, 2026Washington County, Mississippi; Chicot County, Arkansas

NWS Jackson, MS issued this severe thunderstorm warning at Sep 21, 2026, 9:50 PM CDT for Washington County, Mississippi; Chicot County, Arkansas. It was in force for 55 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: Sep 21, 2026, 9:50 PM CDT (02:50 UTC)
Expired: Sep 21, 2026, 10:45 PM CDT
In force: 55 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Chicot County, AR, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 153 km from the middle of the area, began a volume at 02:52 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

Jackson, MS (KJAN), launched 00:00Z, 2.8 hours before the alert went out and 144 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: 1130 J/kg
Mixed-layer CIN: -71 J/kg
Mixed-layer LCL: 1798 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 21, 7:19 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Yazoo	56 min
Sep 21, 7:36 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Clay, Oktibbeha, Webster	54 min
Sep 21, 8:27 PM CDT	Special Weather Statement	JAN	Choctaw	48 min
Sep 21, 8:31 PM CDT	Special Weather Statement	JAN	Oktibbeha	59 min
Sep 21, 8:53 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Lowndes, Noxubee, Oktibbeha, Winston	67 min
Sep 21, 9:10 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	65 min
Sep 21, 9:38 PM CDT	Special Weather Statement	JAN	Neshoba	67 min
Sep 21, 9:53 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Washington	67 min
Sep 21, 11:21 PM CDT	Special Weather Statement	JAN	Sharkey	39 min
Sep 22, 1:41 AM CDT	Special Weather Statement	JAN	Issaquena	34 min
Sep 22, 1:30 PM CDT	Special Weather Statement	JAN	Franklin	60 min
Sep 22, 2:21 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Lincoln	39 min
Sep 22, 6:18 PM CDT	Special Weather Statement	JAN	Leake	57 min
Sep 22, 1:33 PM CDT	Special Weather Statement	JAN	Catahoula, Concordia	57 min
Sep 22, 1:38 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	67 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2026 Severe Thunderstorm Warnings in Arkansas, 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.