A long lasting heat wave occurred across Southern California from June 14th through the 20th, where many daily records were broken. A wildfire also broke out in the Riverside County Mountains on the 13th, which led to damages and road closures. Isolated thunderstorms also produced gusty winds.

Wildfire in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 13-JUN-21 10:12:00 to 21-JUN-21 11:28:00 (PST-8)
Property damage: 1.00M
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The Flats fire near Pinyon Pines off of Route 74 near Pidgeon Springs Road burned 341 acres. This prompted mandatory evacuations for the Pinyon Crest area and evacuation warnings for Pinyon and Alpine Villages. Portions of Route 74 were closed due to the fire. 2 homes were destroyed, 3 homes damaged, as well as 3 outbuildings damaged. A firefighter was also injured. Weather conditions near time of fire start were 96 degrees, 6% relative humidity, and WSW wind with gusts to around 20 mph.

Excessive Heat in APPLE AND LUCERNE VALLEYS, CALIFORNIA
From 14-JUN-21 00:00:00 to 20-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Extreme heat occurred across this region with temperatures peaking on June 16th, where Apple Valley hit 112 degrees.

Excessive Heat in COACHELLA VALLEY, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Extreme heat occurred across the Coachella Valley with temperatures over 120 degrees. Thermal reported a high of 119 twice along with a morning low temperature of 90. Palm Springs tied their all-time record high temperature of 123 degrees on June 17th and reported a low temperature of 90 the following morning. There was one heat-related fatality on June 19th in Palm Springs, where a man simply collapsed while walking down the city streets.

Excessive Heat in SAN DIEGO COUNTY DESERTS, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Scorching heat occurred across this region with temperatures over 120 degrees. Ocotillo Wells reported a high 123 degrees twice on June 17th and 18th, as well as a low temperature of 98 degrees on the morning of June 20th. Two hikers had to be rescued from the Borrego Palm Canyon Trail around 12:40 PM on the 19th due to heat related illness. One hiker died at the scene, and the other was transported to a hospital and is in critical condition. A firefighter who was aiding with the rescue also suffered from heat illness, though his condition is unknown. It was around 112 degrees at the time.

Excessive Heat in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Hot temperatures occurred across the area with Idyllwild peaking at 104 degrees on June 16th. A female hiker died on the Pacific Crest Trail near Anza from heat stroke and another hiker was helicopter air lifted to hospital.

Excessive Heat in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hot conditions occurred with temperatures over 100 degrees near the base of the mountains to a daily record of 89 degrees at Big Bear Lake.

Excessive Heat in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hot temperatures across the region with temperatures near 110 degrees. San Jacinto broke a daily record on June 15th at 107 degrees.

Excessive Heat in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hot temperatures occurred where temperatures over the century mark occurred. Ramona peaked at 100 degrees and Santee peaked at 103 degrees.

Excessive Heat in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Even coastal areas felt the heat. Chula Vista reported a high temperature of 89 degrees on June 15th, breaking a daily record high by 13 degrees.

Excessive Heat in ORANGE COUNTY INLAND, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hot temperatures occurred with high temperatures in the mid to upper 90s. Anaheim broke a daily record on June 15th with a high of 96 degrees.

Excessive Heat in ORANGE COUNTY COASTAL, CALIFORNIA
From 14-JUN-21 00:00:00 to 21-JUN-21 00:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Hot temperatures occurred with areas reaching into the low to mid 90s. John Wayne Airport reached 91 degrees on June 15th.

Strong Wind in COACHELLA VALLEY, CALIFORNIA
From 17-JUN-21 16:00:00 to 17-JUN-21 18:00:00 (PST-8)
Magnitude: 26.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Local Official

Local officials reports showers caused strong winds and wind damage in the city of Thousand Palms. Reports indicate 3 power poles were damaged and resulted in power outages to residents. Also very poor visibility in the area due to blowing sand and dust at the time of this event.

High Wind in APPLE AND LUCERNE VALLEYS, CALIFORNIA
From 18-JUN-21 02:15:00 to 18-JUN-21 02:20:00 (PST-8)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A microburst produced a 59 mph wind gust with a passing thunderstorm in Hesperia around 3:15 AM PDT.