Name: Heat in Missouri, July 16 to 17, 2025
Start: 2025-07-16T10:00
End: 2025-07-17T20:00
Location: Missouri

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 MEG wrote it up.

A heat wave kicked off as a strong ridge moved into the Lower Mississippi Valley in response to a Bermuda High expanding into the southeastern United States. Excessive humidity and temperatures in the mid to upper 90s generated heat indices from 105 to 109 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 Memphis, TN wrote its last area forecast discussion before the first event at Jul 16, 5:30 AM CST, 4 hours 30 minutes earlier.

Area forecast discussion, Jul 16, 5:30 AM CST, 4 hours 30 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, Dunklin

When: July 16, 10:00 AM CST to 8:00 PM CST
Where: Dunklin forecast zone
Reported by: AWOS
Coordinates: 36.106, -90.166 (the zone’s center; the record gives no point)

Maximum heat index of 106.

Heat, Pemiscot

When: July 16, 10:00 AM CST to 8:00 PM CST
Where: Pemiscot forecast zone
Reported by: AWOS
Coordinates: 36.211, -89.785 (the zone’s center; the record gives no point)

Maximum heat index of 106.

Heat, Pemiscot

When: July 17, 10:00 AM CST to 8:00 PM CST
Where: Pemiscot forecast zone
Reported by: AWOS
Coordinates: 36.211, -89.785 (the zone’s center; the record gives no point)

Maximum heat index of 106.

Heat, Dunklin

When: July 17, 10:00 AM CST to 8:00 PM CST
Where: Dunklin forecast zone
Reported by: AWOS
Coordinates: 36.106, -90.166 (the zone’s center; the record gives no point)

Maximum heat index of 106.

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 Missouri in 2025 Every state in 2025 This day in weather history Warnings in Missouri, 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: 1281508, 1281509, 1281511, 1281512.