A significant area of high pressure with heights reaching around 595 dm over the region allow for several days of all-time record breaking heat, with values as much as 30 degrees or more above the seasonal temperature for the month of March.
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.
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.
The episode as NWS SGX wrote it up.
A significant area of high pressure with heights reaching around 595 dm over the region allow for several days of all-time record breaking heat, with values as much as 30 degrees or more above the seasonal temperature for the month of March.
The national radar mosaic for the moment the first event began.
2 heat. Local standard time, as filed.
New daily maximum high temperature records broken in Anaheim of 100F on 3/17, 95F on 3/18, 94F on 3/20, and 86F on 3/21.
KSNA ASOS reported new daily maximum high temperature records broken in Santa Ana (John Wayne Airport) of 100F on 3/17, 95F on 3/18, 95F on 3/19, and 95F on 3/20, and 95F on 3/21.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2026Every state in 2026This day in weather historyWarnings in California, March 2026
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: 1326260, 1326261.