Thunderstorms developed in the afternoon hours of June 11th in east Texas. These storms grew upscale and became a mescoscale convective system.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LIX wrote it up.
Thunderstorms developed in the afternoon hours of June 11th in east Texas. These storms grew upscale and became a mescoscale convective system. Eastward movement of this MCS was driven by both generally westward flow aloft as well as cold pool outflow on the east side of it. Although the complex had lost much of its intensity by the time it reached southeast Louisiana, a portion of if was still able to produce severe winds in Baton Rouge area.
The local office's own words before the first event, 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 the first event at Jun 12, 11:42 AM CST, 1 hour 7 minutes earlier.
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</html>Special Weather Statement
National Weather Service New Orleans LA
137 PM CDT Thu Jun 12 2025
LAZ046-048-085-121930-
Iberville LA-Western Ascension LA-East Baton Rouge LA-
137 PM CDT Thu Jun 12 2025
...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHWESTERN
ASCENSION, EASTERN IBERVILLE AND SOUTH CENTRAL EAST BATON ROUGE
PARISHES THROUGH 230 PM CDT
...
At 137 PM CDT, Doppler radar was tracking a strong thunderstorm near
Village St. George, or near Oak Hills Place, moving north at 25 mph.
HAZARD...Wind gusts up to 50 mph and pea 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, Oak Hills Place, Westminster, Old Jefferson, Merrydale,
Village St. George, Inniswold, Shenandoah, Brownfields, Central,
Gardere, and Baton Rouge Airport.
This includes the following Interstates...
Interstate 10 in Louisiana between mile markers 157 and 171.
Interstate 12 between mile markers 1 and 7.
Interstate 110 in Louisiana between mile markers 2 and 7.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3058 9103 3029 9098 3028 9107 3048 9120
3052 9120
TIME...MOT...LOC 1837Z 164DEG 24KT 3031 9105
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
CABThe Hammond radar (KHDC), 62 km away, was scanning. The volume nearest the first event began at 18:51 UTC.
1 thunderstorm wind. Local standard time, as filed.
Broadcast media reports pictures of snapped trees at Womens Hospital in Baton Rouge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2025Every state in 2025This day in weather historyWarnings in Louisiana, June 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1278335.