A strong cold front moving through the region provided ample life for strong thunderstorms to develop. A cluster of this activity organized into a mesoscale convective system.
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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.
A strong cold front moving through the region provided ample life for strong thunderstorms to develop. A cluster of this activity organized into a mesoscale convective system. Widespread severe winds were produced across the local area from this MCS.
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 Mar 24, 2:29 AM CST, 3 hours 41 minutes earlier.
Area Forecast Discussion National Weather Service New Orleans LA 329 AM CDT Mon Mar 24 2025 ...New SHORT TERM, LONG TERM, AVIATION, MARINE... .SHORT TERM... (Today through Tuesday) Issued at 217 AM CDT Mon Mar 24 2025 Cold front sagging south this morning and will stall by mid morning around 9-10am. This will cause the area of sh/ts to the north to move into the area just before daylight today. Forcing and focus is beginning to weaken with this and dominant forcing will eventually become cold pooling. Stability paramaters are also increasing somewhat as well. This is mostly due to winds becoming parallel to the frontal boundary today. This is not to say there will be no potential for a strong or severe storm because numbers remain marginal but they do exist. SPC has a marginal risk for severe today and this looks valid. But as stability slowly rises, these storms should slowly weaken further as the day progresses. There will be plenty of rainfall around and it is needed. A few of these storms will be capable of rain rates around 2" per hour but will be transitory. This would still be capable of ponding in the normal places. The next issue will be fog tonight. Conditions are looking very good for advection fog tonight into Tue morning. This looks to be a strat deck moving in a few hundred feet up then slowly lowering to the sfc or it could just move in as fog. We will be able to look at this a bit more well ahead of tonight but the moisture source(rain) and thermal profiles will be at very good levels with a stalled frontal boundary right next to the area. "It don't get much better than that." && .LONG TERM... (Tuesday night through Sunday) Issued at 217 AM CDT Mon Mar 24 2025 The front will be quasistationary most of the week but should make its way to the coast by late Tue before stalling again. It should then pivot by late Wed making its way along the coast then northward up the Miss River valley through the end of the week. This will help keep mostly cloudy skies with low probabilities of a passing shower through mid week. We will keep precip numbers low during mid week but will begin to bring these numbers higher toward the end of the week as we are now beginning to move into the time of year for MCS structures and models are trying to show just this type of feature moving out of the Rio Grande Valley by the end of the week. Since, these are mesoscale features, we will need to be a lot closer in time to it before determining how strong and where it will move by the weekend. && .AVIATION... (12Z TAFS) Issued at 217 AM CDT Mon Mar 24 2025 Mostly MVFR cigs with a few sites showing VFR cigs this morning. All locations will at least temporarily have IFR cigs this morning especially as TSRA moves into the area. Temp IFR vis could result from these storms as well along with gusty multidirectional winds as they approach. Cigs should move to MVFR around noon today and VFR during the afternoon. But cigs and vis will rapidly move to IFR and possibly LIFR ranges after midnight tonight. && .MARINE... Issued at 217 AM CDT Mon Mar 24 2025 Southerly winds will remain at 15kt or less today but become light and erratic later today into Tuesday before becoming northerly late Tuesday but still 15kt or less. East winds will develop by Thu into the end of the week with wind speeds rising to around 20kt. There is a high potential for dense fog in the nearshore waters tonight into Tue morning. This will hold especially true for the Miss River. && .PRELIMINARY POINT TEMPS/POPS... MCB 76 57 84 56 / 70 0 0 0 BTR 79 60 85 59 / 60 0 0 0 ASD 79 58 84 59 / 70 10 0 0 MSY 77 61 82 62 / 80 10 0 0 GPT 74 58 80 58 / 70 10 0 0 PQL 76 55 81 56 / 70 10 0 0 && .LIX WATCHES/WARNINGS/ADVISORIES... LA...None. GM...None. MS...None. GM...None. && SHORT TERM...TE LONG TERM....TE AVIATION...TE MARINE...TE
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
MSWThe Hammond radar (KHDC), 108 km away, was scanning. The volume nearest the first event began at 12:07 UTC.
9 thunderstorm wind, 3 hail. Local standard time, as filed.
Trees and power lines downed by thunderstorm winds in on Maringouin Road East.
The KBTR ASOS measured a 78 mph thunderstorm wind gust.
Father of NWS employee reported a tree down in neighbors yard and leaves plastered to his shop wall 23 feet high due to thunderstorm winds. This was off Wax road in Central.
Broadcast media posted a picture of a tree downed by thunderstorm winds on Mack Road north of Walker.
Parish S.O. reported tree down at Pumpkin Center Rd in front of Trinity Baptist Church.
Parish S.O. reported tree down off Wardline Rd before Hebert-Kyzar Rd.
Parish S.O. reported tree fell on house at 49000 block of Whiskey Lane.
DEMCO reported widespread power outages across northeastern St. Helena Parish from downed powerlines.
The I-12 exit sign for LA Highway 434 Lacombe was blown over by thunderstorm winds.
Parish EM shared video showing pea to quarter size hail at Terrebonne Parish Sheriffs Office rifle range on Savanne Road.
Picture on social media from local broadcast meteorologist showed hail stone around half dollar size reported near Bayou Blue.
A comment on a broadcast media social media post showed a video of quarter sized hail.
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, March 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 2026-10-01. Each event’s entry at NCEI: 1250274, 1256227, 1256228, 1256278, 1256279, 1256288, 1256289, 1256292, 1256294, 1256298, 1256312, 1256313.