Arizona, 2023

Heat in Arizona, September 27, 2023

September 27, 2023 · NWS TWC · 1 event in 1 county or zone

Hot temperatures 10 to 12 degrees above normal caused the Moderate Heat Risk category to be reached. The Pima County Medical Examiner determined heat to be the primary cause of death for two individuals found in the desert on the Tohono O'odham Nation.

Where it happened

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The toll

Deaths
2
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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 TWC wrote it up.

Hot temperatures 10 to 12 degrees above normal caused the Moderate Heat Risk category to be reached. The Pima County Medical Examiner determined heat to be the primary cause of death for two individuals found in the desert on the Tohono O'odham Nation.

The radar

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

Open the radar archive at this moment

Event by event

1 heat. Local standard time, as filed.

Heat, Tohono O Odham Nation

When
September 27, 11:00 AM MST to 7:00 PM MST
Where
Tohono O Odham Nation forecast zone
Deaths
2 direct, 0 indirect
Reported by
County Official
Coordinates
32.501, -111.567 (the zone’s center; the record gives no point)

Hot temperatures 10 to 12 degrees above normal caused the Moderate Heat Risk category to be reached on the Tohono O'odham Nation where temperatures topped out around 102 degrees. The Pima County Medical Examiner determined heat to be the primary cause of death for two individuals found in the desert southwest in the Sells and San Miguel areas.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

EventDateAgeSexWhereKind
Heat, Tohono O Odham Nation2023-09-2736MaleOutside/Open AreasDirect
Heat, Tohono O Odham Nation2023-09-2734FemaleOutside/Open AreasDirect

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 Arizona in 2023Every state in 2023This day in weather historyWarnings in Arizona, September 2023

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: 1141664.