Alert archive / Mississippi / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 154, NWS New Orleans, LA

June 27, 2025Walthall County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 27, 2025, 4:03 PM CDT for Walthall County, Mississippi. It was in force for 20 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
Jun 27, 2025, 4:03 PM CDT (21:03 UTC)
Expired
Jun 27, 2025, 4:23 PM CDT
In force
20 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Walthall County, MS

The radar

The Hammond radar (KHDC), 76 km from the middle of the area, began a volume at 21:03 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 12:00Z, 9.1 hours before the alert went out and 130 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2025-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1553 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2025-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1553 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 7:10 PM CDTSpecial Weather StatementLIXSaint Helena35 min
Jun 26, 8:00 PM CDTSpecial Weather StatementLIXWest Baton Rouge30 min
Jun 26, 8:18 PM CDTSpecial Weather StatementLIXIberville, West Baton Rouge27 min
Jun 26, 8:30 PM CDTSpecial Weather StatementLIXEast Baton Rouge30 min
Jun 26, 9:14 PM CDTSpecial Weather StatementLIXPointe Coupee31 min
Jun 27, 9:17 AM CDTSpecial Marine WarningLIX28 min
Jun 27, 10:39 AM CDTSpecial Weather StatementLIXSaint John the Baptist36 min
Jun 27, 11:23 AM CDTSpecial Weather StatementLIXSaint James37 min
Jun 27, 2:09 PM CDTSpecial Weather StatementLIXWest Feliciana36 min
Jun 27, 2:41 PM CDTSpecial Weather StatementLIXWest Feliciana34 min
Jun 27, 4:22 PM CDTSpecial Weather StatementLIXTangipahoa38 min
Jun 27, 9:33 AM CDTSpecial Weather StatementLIXJackson27 min
Jun 27, 2:11 PM CDTSpecial Weather StatementLIXWilkinson34 min
Jun 27, 3:49 PM CDTSpecial Weather StatementLIXWalthall56 min
Jun 27, 5:34 PM CDTSpecial Weather StatementLIXPearl River26 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2025Every 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.