Heat, Dunklin
- When
- July 21, 10:00 AM CST to 7:00 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 108 degrees.
Heat in Missouri, July 21, 2025
Dangerous heat and humidity persisted across the Mid-South. Heat indices ranged between 105 and 109 across the Bootheel as an upper-level ridge continued to build, nudging temperatures and heat indices upwards daily.
Where it happened
Every event with a place to put it; 2 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
Dangerous heat and humidity persisted across the Mid-South. Heat indices ranged between 105 and 109 across the Bootheel as an upper-level ridge continued to build, nudging temperatures and heat indices upwards daily.
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 heat. Local standard time, as filed.
Heat, Pemiscot
- When
- July 21, 10:00 AM CST to 7:00 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 108 degrees.
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
- Heat in Tennessee, July 21, 2025
- Rip Current in Michigan, July 21, 2025
- Flash Flooding and Flooding in Kansas, July 21 to 24, 2025
- Damaging Winds in Oklahoma, July 21, 2025
- Damaging Winds in Georgia, July 21, 2025
- Excessive Heat and Heat in Mississippi, July 21, 2025
- Excessive Heat and Heat in South Dakota, July 21 to 23, 2025
- Damaging Winds in Texas, July 21, 2025
- Hail and Damaging Winds in Kansas, July 21, 2025
- Excessive Heat and Heat in Iowa, July 21 to 23, 2025
- Excessive Heat and Heat in Arkansas, July 21, 2025
- Damaging Winds in Utah, July 21, 2025
More
Every storm in Missouri in 2025Every state in 2025This day in weather historyWarnings 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: 1283397, 1283398.