Upper level high pressure over the Great Basin brought heat, high winds and low relative humidity to Southern California. Many locations in the Inland Empire reached 100-105 degrees on the 13th.
Every event with a place to put it; 5 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.
Upper level high pressure over the Great Basin brought heat, high winds and low relative humidity to Southern California. Many locations in the Inland Empire reached 100-105 degrees on the 13th. Orange and San Diego County valleys reached 90-99 degrees on the 13th. The Coachella Valley saw the highest temperatures in the region with highs topping out around 110F on Friday. Similar high temperatures occurred on the 14th. A weak Santa Ana event occurred with peak wind gusts ranging from 20-40 mph, highest in the mountains. Numerous small wildfires broke out due to the low humidity and gusty winds. One of the largest fires was the Horseshoe Fire near Hemet. It prompted evacuations of a small community near North Warren Road. No injuries or damages were reported.
The national radar mosaic for the moment the first event began.
4 excessive heat, 1 wildfire. Local standard time, as filed.
The Coachella Valley experienced hot temperatures on September 13th and 14th. Palm Springs Airport and Thermal reached 110 degrees on September 13th. Similar temperatures were observed on the 14th.
Many locations throughout the Inland Empire reached 100-105 degrees on September 13th and 14th. The highest was Riverside Airport at 105 degrees on September 13th.
Many locations throughout Inland Orange County observed high temperatures ranging from 90-99 degrees on September 13th and 14th. The highest temperature was 99 degrees in Lake Forest on the 14th and 99 degrees in Yorba Linda on the 13th.
Many locations throughout the San Diego County valleys reported high temperatures of 90-96 degrees on September 13th and 14th, with the 14th being the hottest day. Miramar was the hottest location with a high of 96 on the 14th.
The Horseshoe Fire broke out around 1700 PST on September 14th in Riverside County. 60 homes were evacuated in a small community. The fire was 520 acres and was fully contained on September 17th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2019Every state in 2019This day in weather historyWarnings in California, September 2019
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: 858110, 858112, 858113, 858114, 858118.