Alert archive / Louisiana / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 134, NWS New Orleans, LA

June 10, 2025Saint John the Baptist Parish, Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 10, 2025, 4:02 PM CDT for Saint John the Baptist Parish, Tangipahoa Parish, Louisiana. It was in force for 43 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 10, 2025, 4:02 PM CDT (21:02 UTC)
Expired: Jun 10, 2025, 4:45 PM CDT
In force: 43 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Saint John the Baptist Parish, LA, Tangipahoa Parish, LA

The radar

The Hammond radar (KHDC), 16 km from the middle of the area, began a volume at 21:06 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.0 hours before the alert went out and 72 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: 2613 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 754 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 3 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

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 Jun 10, 4:00 PM CDT, 2 minutes earlier.

Area forecast discussion, Jun 10, 4:00 PM CDT, 2 minutes before

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In the hours before

Special weather statement, Jun 10, 2:20 PM CDT, 1 hour 42 minutes before

Special Weather Statement
National Weather Service New Orleans LA
220 PM CDT Tue Jun 10 2025

LAZ034>036-047-048-102015-
East Feliciana LA-Pointe Coupee LA-West Baton Rouge LA-
East Baton Rouge LA-West Feliciana LA-
220 PM CDT Tue Jun 10 2025

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTH CENTRAL WEST
BATON ROUGE, SOUTHEASTERN WEST FELICIANA, SOUTHEASTERN POINTE COUPEE,
SOUTHWESTERN EAST FELICIANA AND NORTHWESTERN EAST BATON ROUGE
PARISHES THROUGH 315 PM CDT
...

At 220 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms over New Roads, moving east at 20 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...
Zachary, New Roads, St. Francisville, and Erwinville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 3056 9122 3050 9140 3069 9159 3081 9150
      3074 9123
TIME...MOT...LOC 1920Z 286DEG 16KT 3067 9148

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

CAB

Special weather statement, Jun 10, 2:36 PM CDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service New Orleans LA
236 PM CDT Tue Jun 10 2025

LAZ048-083-102030-
Northern Livingston LA-East Baton Rouge LA-
236 PM CDT Tue Jun 10 2025

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF WEST CENTRAL
LIVINGSTON AND CENTRAL EAST BATON ROUGE PARISHES THROUGH 330 PM CDT
...

At 236 PM CDT, Doppler radar was tracking a strong thunderstorm near
Denham Springs, moving northeast at 15 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Baton Rouge, Denham Springs, Walker, Westminster, Merrydale,
Inniswold, Shenandoah, Central, Greenwell Spring, and Brownfields.

This includes Interstate 12 between mile markers 2 and 15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

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

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3039 9108 3051 9116 3063 9102 3041 9082
TIME...MOT...LOC 1936Z 239DEG 14KT 3046 9103

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

CAB

Special weather statement, Jun 10, 2:50 PM CDT, 1 hour 12 minutes before

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Special weather statement, Jun 10, 3:11 PM CDT, 51 minutes before

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Special weather statement, Jun 10, 3:41 PM CDT, 21 minutes before

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Local storm report, Jun 10, 3:47 PM CDT, 15 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
Jun 9, 9:23 PM CDT	Special Marine Warning	LIX		67 min
Jun 9, 10:20 PM CDT	Special Marine Warning	LIX		85 min
Jun 9, 11:00 PM CDT	Special Marine Warning	LIX		90 min
Jun 10, 6:15 AM CDT	Special Marine Warning	LIX		60 min
Jun 10, 7:45 AM CDT	Special Marine Warning	LIX		60 min
Jun 10, 8:12 AM CDT	Special Marine Warning	LIX		93 min
Jun 10, 8:17 AM CDT	Special Marine Warning	LIX		88 min
Jun 10, 9:09 AM CDT	Special Marine Warning	LIX		2 hr
Jun 10, 9:46 AM CDT	Special Marine Warning	LIX		119 min
Jun 10, 9:49 AM CDT	Special Marine Warning	LIX		116 min
Jun 10, 12:24 PM CDT	Special Marine Warning	LIX		2 hr
Jun 10, 1:16 PM CDT	Special Weather Statement	LIX	Tangipahoa	89 min
Jun 10, 1:27 PM CDT	Special Weather Statement	LIX	West Feliciana	93 min
Jun 10, 1:43 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa	47 min
Jun 10, 1:46 PM CDT	Severe Thunderstorm Warning	LIX	Iberville, Pointe Coupee, West Baton Rouge	44 min
Jun 10, 1:56 PM CDT	Special Weather Statement	LIX	Washington	34 min
Jun 10, 1:59 PM CDT	Special Weather Statement	LIX	East Feliciana	46 min
Jun 10, 2:13 PM CDT	Special Marine Warning	LIX		62 min
Jun 10, 2:20 PM CDT	Special Weather Statement	LIX	Pointe Coupee	55 min
Jun 10, 2:25 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee, West Feliciana	50 min
Jun 10, 2:34 PM CDT	Areal Flood Advisory	LIX	Saint Tammany, Tangipahoa	3 hr
Jun 10, 2:36 PM CDT	Special Weather Statement	LIX	East Baton Rouge	54 min
Jun 10, 2:40 PM CDT	Severe Thunderstorm Warning	LIX	East Feliciana, West Feliciana	65 min
Jun 10, 2:42 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, Livingston	63 min
Jun 10, 2:50 PM CDT	Special Weather Statement	LIX	Saint Helena	55 min
Jun 10, 2:55 PM CDT	Special Marine Warning	LIX		2 hr
Jun 10, 3:06 PM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena	54 min
Jun 10, 3:11 PM CDT	Special Weather Statement	LIX	Saint Charles	34 min
Jun 10, 3:16 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa, Washington	59 min
Jun 10, 3:48 PM CDT	Special Marine Warning	LIX		57 min
Jun 10, 4:09 PM CDT	Special Weather Statement	LIX	Saint Charles	66 min
Jun 10, 4:13 PM CDT	Severe Thunderstorm Warning	LIX	Lafourche, Saint Charles	62 min
Jun 10, 4:16 PM CDT	Special Marine Warning	LIX		59 min
Jun 10, 4:16 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Tangipahoa	44 min
Jun 10, 4:39 PM CDT	Special Weather Statement	LIX	Orleans	66 min
Jun 10, 4:45 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard, Saint Tammany	45 min
Jun 10, 4:46 PM CDT	Special Marine Warning	LIX		59 min
Jun 10, 5:13 PM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard, Saint Charles	4 hr
Jun 10, 5:17 PM CDT	Special Weather Statement	LIX	Lafourche	73 min
Jun 10, 5:17 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	43 min
Jun 10, 5:26 PM CDT	Special Marine Warning	LIX		64 min
Jun 10, 5:50 PM CDT	Special Marine Warning	LIX		115 min
Jun 10, 5:51 PM CDT	Special Weather Statement	LIX	Lafourche	24 min
Jun 10, 6:27 PM CDT	Special Marine Warning	LIX		88 min
Jun 10, 6:53 PM CDT	Special Weather Statement	LIX	East Baton Rouge, Livingston, West Baton Rouge	37 min
Jun 9, 7:27 PM CDT	Special Weather Statement	LIX	Pearl River	48 min
Jun 9, 8:00 PM CDT	Special Weather Statement	LIX	Hancock, Harrison	45 min
Jun 9, 8:42 PM CDT	Special Weather Statement	LIX	Jackson	48 min
Jun 9, 8:45 PM CDT	Special Weather Statement	LIX	Hancock, Harrison, Jackson	45 min
Jun 9, 8:54 PM CDT	Severe Thunderstorm Warning	LIX	Hancock, Harrison, Jackson	51 min
Jun 9, 8:58 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	47 min
Jun 9, 9:28 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	47 min
Jun 9, 9:49 PM CDT	Special Weather Statement	LIX	Hancock, Harrison	41 min
Jun 9, 9:51 PM CDT	Flash Flood Warning	LIX	Harrison, Jackson	4 hr
Jun 9, 10:28 PM CDT	Special Weather Statement	LIX	Harrison	32 min
Jun 10, 12:08 AM CDT	Special Weather Statement	LIX	Harrison	52 min
Jun 10, 12:59 AM CDT	Special Weather Statement	LIX	Harrison, Jackson	46 min
Jun 10, 12:39 PM CDT	Special Weather Statement	LIX	Harrison	96 min
Jun 10, 1:38 PM CDT	Special Weather Statement	LIX	Amite	97 min
Jun 10, 1:51 PM CDT	Special Weather Statement	LIX	Walthall	24 min
Jun 10, 1:54 PM CDT	Severe Thunderstorm Warning	LIX	Jackson	50 min
Jun 10, 2:26 PM CDT	Severe Thunderstorm Warning	LIX	Pearl River	49 min
Jun 10, 3:41 PM CDT	Special Weather Statement	LIX	Walthall	64 min
Jun 10, 4:36 PM CDT	Special Weather Statement	LIX	Stone	24 min
Jun 10, 4:42 PM CDT	Special Weather Statement	LIX	Pearl River	63 min
Jun 10, 5:40 PM CDT	Special Weather Statement	LIX	Hancock, Harrison	35 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.