A southerly low level flow deepened through the day on September 21st, resulting in an increase in low level moisture and thus, greater humidity during the afternoon. Temperatures climbed into the mid 90s during the afternoon, resulting in moderate to strong instability across the area.
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 SHV wrote it up.
A southerly low level flow deepened through the day on September 21st, resulting in an increase in low level moisture and thus, greater humidity during the afternoon. Temperatures climbed into the mid 90s during the afternoon, resulting in moderate to strong instability across the area. While nothing was evident aloft to help to focus any concentrated areas of showers and thunderstorms, strong heating and available moisture alone was adequate enough for an isolated severe thunderstorm to develop over Southern Caddo Parish in Northwest Louisiana, which tracked northeast through portions of East Shreveport into Bossier City. This storm produced several instances of damaging winds and large hail, primarily across Downtown Shreveport and portions of Bossier City, before weakening by early evening.
The Shreveport radar (KSHV), 12 km away, was scanning. The volume nearest the first event began at 23:29 UTC.
4 hail, 1 thunderstorm wind. Local standard time, as filed.
An NWS Storm Survey confirmed several areas of trees with limbs broken by wind gusts estimated up to 70 mph at the Downtown Shreveport Riverfront.
Ping pong ball size hail fell on Ascot Court in the Green Acres subdivision in Bossier City.
Nickel size hail fell in North Bossier City.
Ping pong ball sized hail fell at the Target on Airline Drive and I-220.
Half dollar size hail fell on Sabine Pass Drive in North Bossier City.
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, September 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: 1290406, 1290407, 1290408, 1290409, 1290410.