Alert archive / Louisiana / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 33, NWS New Orleans, LA

March 24, 2025Saint Helena Parish, Tangipahoa Parish, Washington Parish, Louisiana; Amite County, Pike County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Mar 24, 2025, 8:01 AM CDT for Saint Helena Parish, Tangipahoa Parish, Washington Parish, Louisiana; Amite County, Pike County, Mississippi. It was in force for 32 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: Mar 24, 2025, 8:01 AM CDT (13:01 UTC)
Expired: Mar 24, 2025, 8:33 AM CDT
In force: 32 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Saint Helena Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Amite County, MS, Pike County, MS

The radar

The Hammond radar (KHDC), 46 km from the middle of the area, began a volume at 13:05 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
Mar 24, 6:27 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 1.0 hours before the alert went out and 106 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: 1188 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.7

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 Mar 24, 7:58 AM CDT, 3 minutes earlier.

Area forecast discussion, Mar 24, 7:58 AM CDT, 3 minutes before

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In the hours before

Special weather statement, Mar 24, 6:52 AM CDT, 1 hour 9 minutes before

Special Weather Statement
National Weather Service New Orleans LA
652 AM CDT Mon Mar 24 2025

LAZ037-039-071-MSZ069>071-077-241215-
Washington LA-St. Helena LA-Northern Tangipahoa LA-Pike MS-
Walthall MS-Amite MS-Pearl River MS-
652 AM CDT Mon Mar 24 2025

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTHEASTERN ST.
HELENA, NORTHERN TANGIPAHOA AND WASHINGTON PARISHES, WALTHALL, PIKE,
EASTERN AMITE AND PEARL RIVER COUNTIES THROUGH 715 AM CDT
...

At 651 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Kentwood to 9 miles south of Dexter.
Movement was south at 15 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Osyka, Enon, Roseland, Tangipahoa, Crossroads, Summit, Magnolia,
Mount Herman, Wilmer, Kentwood, Bogalusa, Angie, Mccomb, Poplarville,
Varnado, Mccomb Airport, Salem, Franklinton, Dexter, and Tylertown.

This includes the following Interstates...
 Interstate 55 in Louisiana between mile markers 49 and 66.
 Interstate 55 in Mississippi between mile markers 1 and 24.
 Interstate 59 in Mississippi between mile markers 21 and 42.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

A Severe Thunderstorm Watch remains in effect until 1100 AM CDT for
southeastern Louisiana...and southern Mississippi.

&&

LAT...LON 3133 9008 3134 9004 3118 9003 3117 9000
      3113 9000 3113 8994 3107 8992 3107 8984
      3100 8983 3101 8951 3098 8947 3098 8943
      3101 8942 3100 8934 3074 8934 3070 8985
      3075 9066 3135 9065 3135 9011
TIME...MOT...LOC 1151Z 015DEG 13KT 3097 9059 3094 9000

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

MSW

Special weather statement, Mar 24, 7:22 AM CDT, 39 minutes before

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Special weather statement, Mar 24, 7:25 AM CDT, 36 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
Mar 24, 6:47 AM CDT	Severe Thunderstorm Warning	LIX	Iberville, Pointe Coupee, West Baton Rouge	43 min
Mar 24, 6:52 AM CDT	Special Weather Statement	LIX	Washington	23 min
Mar 24, 7:00 AM CDT	Flash Flood Warning	LIX	East Baton Rouge, West Baton Rouge	6 days
Mar 24, 7:06 AM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Baton Rouge, West Feliciana	39 min
Mar 24, 7:14 AM CDT	Wind Advisory	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 13 more	8 hr
Mar 24, 7:18 AM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Pointe Coupee, Saint Helena, West Baton Rouge	42 min
Mar 24, 7:22 AM CDT	Special Weather Statement	LIX	Livingston	38 min
Mar 24, 7:25 AM CDT	Special Weather Statement	LIX	East Feliciana, West Feliciana	35 min
Mar 24, 7:44 AM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	32 min
Mar 24, 7:56 AM CDT	Severe Thunderstorm Warning	LIX	Ascension, Livingston, Saint Helena, Saint James, Saint John the Baptist, Tangipahoa	38 min
Mar 24, 7:57 AM CDT	Special Marine Warning	LIX		63 min
Mar 24, 8:15 AM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Tangipahoa, Washington	45 min
Mar 24, 8:23 AM CDT	Severe Thunderstorm Warning	LIX	Saint John the Baptist, Saint Tammany, Tangipahoa	40 min
Mar 24, 8:40 AM CDT	Special Marine Warning	LIX		65 min
Mar 24, 9:02 AM CDT	Special Weather Statement	LIX	Orleans	28 min
Mar 24, 9:36 AM CDT	Special Weather Statement	LIX	Assumption	24 min
Mar 24, 9:39 AM CDT	Special Marine Warning	LIX		46 min
Mar 24, 9:43 AM CDT	Special Weather Statement	LIX	Assumption	32 min
Mar 24, 9:56 AM CDT	Special Weather Statement	LIX	Saint Charles	34 min
Mar 24, 9:58 AM CDT	Special Marine Warning	LIX		42 min
Mar 24, 10:05 AM CDT	Gale Warning	LIX		6 hr
Mar 24, 10:09 AM CDT	Severe Thunderstorm Warning	LIX	Lafourche, Terrebonne	34 min
Mar 24, 10:22 AM CDT	Severe Thunderstorm Warning	LIX	Lafourche, Saint Charles, Terrebonne	38 min
Mar 24, 10:36 AM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Lafourche, Orleans, Plaquemines, Saint Bernard, Saint Charles	39 min
Mar 24, 11:03 AM CDT	Special Weather Statement	LIX	Saint Bernard	42 min
Mar 24, 3:55 PM CDT	Small Craft Advisory	LIX		7 hr
Mar 24, 8:57 AM CDT	Special Weather Statement	LIX	Hancock	48 min
Mar 24, 9:11 AM CDT	Special Weather Statement	LIX	Hancock, Harrison	34 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2025 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.