Alert archive / Mississippi / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 301, NWS Jackson, MS

May 20, 2025Madison County, Yazoo County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 20, 2025, 8:53 PM CDT for Madison County, Yazoo County, Mississippi. It was in force for 46 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: May 20, 2025, 8:53 PM CDT (01:53 UTC)
Expired: May 20, 2025, 9:39 PM CDT
In force: 46 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Madison County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 52 km from the middle of the area, began a volume at 01:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 20, 5:50 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.9 hours before the alert went out and 45 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: 1763 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1098 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 15.1

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 May 20, 7:49 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, May 20, 7:49 PM CDT, 1 hour 4 minutes before

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In the hours before

Local storm report, May 20, 6:42 PM CDT, 2 hours 11 minutes before

Preliminary Local Storm Report
National Weather Service Jackson MS
642 PM CDT Tue May 20 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0505 PM     Tornado          6 WSW Jennie            33.21N 91.37W
05/20/2025                   Chicot             AR   Public

            Numerous groups of powerlines down at
            highway 160 & bill young.

&&

OAJ

Special weather statement, May 20, 6:57 PM CDT, 1 hour 56 minutes before

Special Weather Statement
National Weather Service Jackson MS
657 PM CDT Tue May 20 2025

LAZ024-026-210045-
Concordia LA-Catahoula LA-
657 PM CDT Tue May 20 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CONCORDIA AND
NORTHERN CATAHOULA PARISHES THROUGH 745 PM CDT...

At 656 PM CDT, Doppler radar was tracking a strong thunderstorm over
Manifest, or 10 miles west of Harrisonburg, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Wallace Ridge and Manifest around 700 PM CDT.
  Jonesville and Harrisonburg around 705 PM CDT.
  Wildsville around 710 PM CDT.
  Frogmore around 725 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until midnight CDT for northeastern
Louisiana.

&&

LAT...LON 3182 9201 3177 9158 3151 9170 3161 9201
TIME...MOT...LOC 2356Z 282DEG 26KT 3172 9199

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

SW

Local storm report, May 20, 7:06 PM CDT, 1 hour 47 minutes before

Preliminary Local Storm Report
National Weather Service Jackson MS
706 PM CDT Tue May 20 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0604 PM     Tstm Wnd Dmg     4 ESE Foote             33.07N 90.96W
05/20/2025                   Washington         MS   Law Enforcement

            Tree down along Hwy 436 at Beargarden Rd.

&&

CE

Local storm report, May 20, 7:42 PM CDT, 1 hour 11 minutes before

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Special weather statement, May 20, 8:16 PM CDT, 37 minutes before

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Special weather statement, May 20, 8:26 PM CDT, 27 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
May 20, 7:21 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Issaquena, Sharkey, Yazoo	54 min
May 20, 7:28 PM CDT	Tornado Warning	JAN	Sharkey, Yazoo	28 min
May 20, 7:34 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison	32 min
May 20, 8:14 PM CDT	Severe Thunderstorm Warning	JAN	Sharkey, Yazoo	61 min
May 20, 8:16 PM CDT	Special Weather Statement	JAN	Adams	44 min
May 20, 8:22 PM CDT	Severe Thunderstorm Warning	JAN	Adams	35 min
May 20, 8:26 PM CDT	Special Weather Statement	JAN	Madison	34 min
May 20, 8:38 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison	67 min
May 20, 9:18 PM CDT	Severe Thunderstorm Warning	JAN	Leake, Madison, Rankin, Scott	57 min
May 20, 9:52 PM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	39 min
May 20, 10:35 PM CDT	Special Weather Statement	JAN	Lauderdale, Newton	40 min
May 20, 7:19 PM CDT	Severe Thunderstorm Warning	JAN	Catahoula, Concordia	56 min
May 20, 10:08 PM CDT	Severe Thunderstorm Warning	JAN	Concordia	22 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2025 Every severe thunderstorm warning 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.