Arkansas, 2025

Heat in Arkansas, July 18, 2025

July 18, 2025 · NWS SHV · 4 events in 4 counties and zones

Upper ridging persisted from the Southeast Gulf Coast into much of Arkansas on July 18th. Strong subsidence beneath the ridge resulted in additional compressional warming, which enabled afternoon temperatures to climb into the mid and upper 90s across Southwest Arkansas, extreme Northeast Texas and North Louisiana.

Where it happened

Every event with a place to put it; 4 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
4

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.

Upper ridging persisted from the Southeast Gulf Coast into much of Arkansas on July 18th. Strong subsidence beneath the ridge resulted in additional compressional warming, which enabled afternoon temperatures to climb into the mid and upper 90s across Southwest Arkansas, extreme Northeast Texas and North Louisiana. Coupled with ample low level moisture that persisted across the area, heat indices ranged from 105-110 degrees across the northern sections of Southwest Arkansas. Meanwhile, temporary relief in the form of increased cloud cover and scattered showers and thunderstorms from a tropical wave spread west across portions of Northcentral Louisiana, which resulted in cooler temperatures and lower heat indices, and became more widespread across the area on the 19th.

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 Jul 18, 7:40 AM CST, 1 hour 20 minutes earlier.

Area forecast discussion, Jul 18, 7:40 AM CST, 1 hour 20 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

4 heat. Local standard time, as filed.

Heat, Little River

When
July 18, 9:00 AM CST to 6:00 PM CST
Where
Little River forecast zone
Reported by
ASOS
Coordinates
33.701, -94.234 (the zone’s center; the record gives no point)

Heat, Howard

When
July 18, 9:00 AM CST to 6:00 PM CST
Where
Howard forecast zone
Reported by
ASOS
Coordinates
34.089, -93.993 (the zone’s center; the record gives no point)

Heat, Hempstead

When
July 18, 9:00 AM CST to 6:00 PM CST
Where
Hempstead forecast zone
Reported by
ASOS
Coordinates
33.735, -93.668 (the zone’s center; the record gives no point)

Heat, Nevada

When
July 18, 9:00 AM CST to 6:00 PM CST
Where
Nevada forecast zone
Reported by
ASOS
Coordinates
33.664, -93.307 (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 Arkansas in 2025Every state in 2025This day in weather historyWarnings in Arkansas, July 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: 1267191, 1267193, 1267194, 1267195.