Alert archive / Louisiana / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 77, NWS New Orleans, LA

May 6, 2025Iberville Parish, West Baton Rouge Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 6, 2025, 1:41 PM CDT for Iberville Parish, West Baton Rouge Parish, Louisiana. It was in force for 49 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 6, 2025, 1:41 PM CDT (18:41 UTC)
Expired: May 6, 2025, 2:30 PM CDT
In force: 49 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Iberville Parish, LA, West Baton Rouge Parish, LA

The radar

The Hammond radar (KHDC), 90 km from the middle of the area, began a volume at 18:43 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.7 hours before the alert went out and 182 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: 766 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 338 m²/s²
0-3 km storm-relative helicity: 362 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at May 6, 3:44 AM CDT, 9 hours 57 minutes earlier.

Area forecast discussion, May 6, 3:44 AM CDT, 9 hours 57 minutes before

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In the hours before

Special weather statement, May 6, 11:57 AM CDT, 1 hour 44 minutes before

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Special weather statement, May 6, 1:28 PM CDT, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 12:53 AM CDT	Special Marine Warning	LIX		67 min
May 6, 1:51 AM CDT	Special Marine Warning	LIX		54 min
May 6, 2:40 AM CDT	Special Marine Warning	LIX		65 min
May 6, 3:44 AM CDT	Small Craft Advisory	LIX		27 hr
May 6, 11:20 AM CDT	River Flood Warning	LIX	Washington	17 days
May 6, 11:20 AM CDT	River Flood Warning	LIX	Saint Tammany	19 days
May 6, 11:21 AM CDT	River Flood Warning	LIX	Saint Tammany	6 days
May 6, 11:23 AM CDT	River Flood Warning	LIX	Tangipahoa	6 days
May 6, 11:57 AM CDT	Special Weather Statement	LIX	West Baton Rouge	33 min
May 6, 11:59 AM CDT	Severe Thunderstorm Warning	LIX	Iberville	46 min
May 6, 12:04 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	26 min
May 6, 12:26 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	49 min
May 6, 12:57 PM CDT	Severe Thunderstorm Warning	LIX	Iberville	48 min
May 6, 1:28 PM CDT	Special Weather Statement	LIX	East Baton Rouge	32 min
May 6, 2:30 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, West Baton Rouge	45 min
May 6, 3:11 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Livingston	49 min
May 6, 3:48 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	25 min
May 6, 5:31 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	44 min
May 6, 5:35 PM CDT	Special Marine Warning	LIX		55 min
May 6, 5:41 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint John the Baptist, Tangipahoa	49 min
May 6, 5:47 PM CDT	Special Weather Statement	LIX	Saint Charles, Saint John the Baptist	43 min
May 6, 6:22 PM CDT	Special Weather Statement	LIX	Washington	23 min
May 6, 11:21 AM CDT	River Flood Warning	LIX	Pike, Walthall	71 hr
May 6, 11:22 AM CDT	River Flood Warning	LIX	Pearl River	64 hr
May 6, 11:22 AM CDT	River Flood Warning	LIX	Pearl River	64 hr
May 6, 4:16 PM CDT	Special Weather Statement	LIX	Amite, Wilkinson	44 min
May 6, 4:48 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Wilkinson	42 min
May 6, 5:19 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LIX	Amite, Pike	41 min
May 6, 5:58 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Pike	18 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.