Excessive Heat, Imperial Valley
- When
- September 17, 9:00 AM PST to 7:00 PM PST
- Where
- Imperial Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.040, -115.365 (the zone’s center; the record gives no point)
Excessive Heat in California, September 17, 2020
Strong high pressure over the Desert Southwest led to excessive heat conditions across the Imperial Valley on the 17th.
Where it happened
Every event with a place to put it; 1 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
- 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 PSR wrote it up.
Strong high pressure over the Desert Southwest led to excessive heat conditions across the Imperial Valley on the 17th.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 excessive heat. Local standard time, as filed.
What these are
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flood in Washington, September 17 to 18, 2020
- Flood and Hail in Oregon, September 17 to 18, 2020
- Heavy Rain in Virginia, September 17 to 18, 2020
- Flash Flooding and Damaging Winds in South Carolina, September 17, 2020
- Tornadoes in South Carolina, September 17, 2020
- Tornadoes in North Carolina, September 17, 2020
- Tornado and Damaging Wind in Georgia, September 17, 2020
- Tornado and Damaging Wind in South Carolina, September 17, 2020
- Tornadoes in North Carolina, September 17 to 18, 2020
- Excessive Heat in Arizona, September 17, 2020
- Heavy Rain in North Carolina, September 17 to 18, 2020
- Excessive Heat in California, September 17 to 18, 2020
More
Every storm in California in 2020Every state in 2020This day in weather historyWarnings in California, September 2020
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 2026-09-30. Each event’s entry at NCEI: 993443.