Alert archive / Mississippi / Flash Flood Warnings in 2025

Flash Flood Warning 37, NWS New Orleans, LA

July 1, 2025Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this flash flood warning at Jul 1, 2025, 5:11 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 1, 2025, 5:11 PM CDT (22:11 UTC)
Expired
Jul 1, 2025, 7:15 PM CDT
In force
2 hr
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
None

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 64 km from the middle of the area, began a volume at 22:15 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, 10.2 hours before the alert went out and 239 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 2025-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1233 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 2025-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
1233 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
956 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
111 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Jun 30, 6:38 PM CDT, 22 hours 33 minutes earlier.

Area forecast discussion, Jun 30, 6:38 PM CDT, 22 hours 33 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:20 AM CDTSpecial Marine WarningLIX85 min
Jul 1, 8:44 AM CDTSpecial Marine WarningLIX91 min
Jul 1, 10:15 AM CDTSpecial Marine WarningLIX90 min
Jul 1, 2:40 PM CDTSpecial Marine WarningLIX65 min
Jul 1, 3:32 PM CDTSpecial Marine WarningLIX58 min
Jul 1, 3:46 PM CDTSpecial Marine WarningLIX59 min
Jul 1, 4:45 PM CDTSpecial Marine WarningLIX60 min
Jul 1, 5:13 PM CDTSpecial Marine WarningLIX62 min
Jul 1, 3:54 PM CDTSpecial Weather StatementLIXJackson51 min
Jul 1, 4:21 PM CDTAreal Flood AdvisoryLIXHarrison, Jackson114 min
Jul 1, 4:30 PM CDTSpecial Weather StatementLIXHarrison45 min
Jul 1, 4:52 PM CDTSevere Thunderstorm WarningLIXHarrison, Jackson38 min
Jul 1, 5:20 PM CDTSevere Thunderstorm WarningLIXHarrison29 min
Jul 1, 5:25 PM CDTFlash Flood WarningLIXHarrison112 min

Nearby

Flash Flood Warnings in Mississippi, 2025Every flash flood 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.