Louisiana, 2025

Heat in Louisiana, August 1, 2025

August 1, 2025 · NWS SHV · 11 events in 11 counties and zones

A weak cool front began to sink south into Northeast Texas and Southwest Arkansas during the day on August 1st, ahead of an upper level trough of low pressure that shifted southeast through the region. Compressional warming ahead of the front resulted in temperatures climbing into the mid and upper 90s across North Louisiana and Lower East Texas along and south of Interstate 20.

Where it happened

Every event with a place to put it; 11 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
11

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.

What happened

The episode as NWS SHV wrote it up.

A weak cool front began to sink south into Northeast Texas and Southwest Arkansas during the day on August 1st, ahead of an upper level trough of low pressure that shifted southeast through the region. Compressional warming ahead of the front resulted in temperatures climbing into the mid and upper 90s across North Louisiana and Lower East Texas along and south of Interstate 20. Low level moisture pooling along the frontal zone did not allow for much mixing of the dewpoints during the afternoon, which when combined with these temperatures, resulted in heat indices ranging from 105-110 degrees.

What forecasters said that day

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 Shreveport, LA wrote its last area forecast discussion before the first event at Aug 1, 5:03 AM CST, 3 hours 57 minutes earlier.

Area forecast discussion, Aug 1, 5:03 AM CST, 3 hours 57 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

11 heat. Local standard time, as filed.

Heat, De Soto

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
De Soto forecast zone
Reported by
ASOS
Coordinates
32.056, -93.737 (the zone’s center; the record gives no point)

Heat, Red River

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Red River forecast zone
Reported by
ASOS
Coordinates
32.093, -93.340 (the zone’s center; the record gives no point)

Heat, Bienville

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Bienville forecast zone
Reported by
ASOS
Coordinates
32.347, -93.056 (the zone’s center; the record gives no point)

Heat, Jackson

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Jackson forecast zone
Reported by
ASOS
Coordinates
32.302, -92.558 (the zone’s center; the record gives no point)

Heat, Ouachita

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Ouachita forecast zone
Reported by
ASOS
Coordinates
32.478, -92.155 (the zone’s center; the record gives no point)

Heat, Caldwell

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Caldwell forecast zone
Reported by
ASOS
Coordinates
32.092, -92.117 (the zone’s center; the record gives no point)

Heat, La Salle

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
La Salle forecast zone
Reported by
ASOS
Coordinates
31.677, -92.160 (the zone’s center; the record gives no point)

Heat, Grant

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Grant forecast zone
Reported by
ASOS
Coordinates
31.600, -92.559 (the zone’s center; the record gives no point)

Heat, Winn

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Winn forecast zone
Reported by
ASOS
Coordinates
31.944, -92.637 (the zone’s center; the record gives no point)

Heat, Natchitoches

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Natchitoches forecast zone
Reported by
ASOS
Coordinates
31.724, -93.096 (the zone’s center; the record gives no point)

Heat, Sabine

When
August 1, 9:00 AM CST to 5:00 PM CST
Where
Sabine forecast zone
Reported by
ASOS
Coordinates
31.564, -93.555 (the zone’s center; the record gives no point)

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Louisiana in 2025Every state in 2025This day in weather historyWarnings in Louisiana, August 2025

Sources

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: 1284410, 1284412, 1284413, 1284416, 1284417, 1284420, 1284422, 1284423, 1284426, 1284427, 1284428.