A highly anomalous ridge of high pressure and light offshore winds brought record breaking heat to the region on the 22nd and 23rd. Just inland from the coast temperatures reached into the low to upper 90's, with Anaheim topping out at 100 degrees on the 22nd.
Every event with a place to put it; 10 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 highly anomalous ridge of high pressure and light offshore winds brought record breaking heat to the region on the 22nd and 23rd. Just inland from the coast temperatures reached into the low to upper 90's, with Anaheim topping out at 100 degrees on the 22nd. The impact was low, though media coverage was high due to the Thanksgiving Holiday.
The national radar mosaic for the moment the first event began.
10 heat. Local standard time, as filed.
Temperatures ranged from the upper 80's at the beaches to the upper 90's several miles inland. San Diego reached 92 degrees, the latest 90 degree temperature on record for a calendar year.
Temperatures in the valleys were in the mid to upper 90's. El Cajon reported a high of 98 degrees. This is the cities second highest November temperature on record.
Temperatures in the Coachella Valley topped out in the mid 90's. Palm Springs reached 96 degrees, the highest temperatures on record for this late in the year.
Temperatures reached into the mid and upper 90's. Anaheim recorded the hottest temperature in the country on this day with a reading of 100 degrees.
Afternoon high temperatures topped out in the upper 80's and mid 90's.
Afternoon highs were in the mid 90's. Riverside set a daily record with an afternoon high of 95 degrees. This highest temperature on record for this late in the year.
Afternoon highs were in the upper 80s and mid 90s. All of the climate sites in the zone set daily record high temperatures.
High temperatures in the afternoon reached the low to upper 90s.
Afternoon high temperatures were in the low to mid 90s. Riverside reached 94 degrees, the hottest temperature this late in the year since 1958.
High temperatures were in the mid to upper 90s.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, November 2017
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: 727825, 727826, 727827, 727828, 727829, 727830, 728584, 728585, 728586, 728591.