San Diego County Valleys storm history

A hiker likely passed away from heat stroke off Nighthawk Trail on Black Mountain. Medical examiner is determining exact cause. At 700 am the temperature was 76F with a dewpoint 64F, wind southeast below 5 mph and relative humidity 67 percent at the base of Black Mountain and 93F…

Intense heat on July 6 (and offshore flow) resulted in breezy east winds and a high of 117F at Ramona ASOS. The previous record high was 111F. At Escondido the high was 112 and Santee 110, these were just shy of all-time highs. San Diego Public Health and 211 services share stati…

A survey of 19 local hospitals indicated 20 heat related 911 calls over two days, with 3 heat related injuries and 1 death. These numbers do not include urgent care facilities and are therefore likely underdone.

The Border Fire began from unknown causes on the 19th of June. A local couple was killed on their property by the fire. Five structures and eleven outbuildings were destroyed, with one other home suffering damage. The fire also destroyed numerous power and phone lines. Firefighte…

A 52 year-old Potrero man was killed while trying to save his home. At least seven others were killed after having crossed the border illegally.

Parts of the area rose up to 110 to 115 degrees during this time period. The Ramona ASOS broke two daily record highs on the 5th and 6th, reaching 112 degrees each day. Escondido had an all-time high of 115F. On September 6th, an all-time high of 113 was recorded at Alpine on Sep…

Three Sisters Trail in San Diego County was closed due to heat on the 7th and 8th. The trail reopened on the 9th, and four hikers with heat related illnesses were rescued. The high temperature in the nearby town of Ramona was 96 degrees on the 9th. EMS reported 8 calls for heat r…

Eight people suffered heat related illnesses hiking Three Sister Trail, 2 had to be airlifted to the hospital, and a third was transported to the hospital via ambulance. The high temperature in the nearby town of Ramona was 95 degrees.

One of the local television stations and San Diego County Health Department reported 50-75 people were treated for heat-related injuries at the Miramar air show.

The Lilac Fire began on the 7th near Interstate 15, and spread rapidly through the San Luis Rey River Basin near Bonsall. The fire consumed 4,100 acres, destroyed 157 structures and damaged 64. Over 100,000 residents were forced to or advised to evacuate and 20,000 people lost po…

Numerous trees were downed across the western valleys of San Diego County. Peak wind gusts generally ranged between 35 and 50 mph, though a peak gust of 58 mph was reported at Otay Mountain between 1414 and 1514PST.

The Highway Fire, near Bonsall and Fallbrook, started at 1200 PST on the 14th near Interstate 15 and California State Route 76, near Old Highway 395 in the Deer Springs area. Several schools and about 600 residents were evacuated. Olive Hill Road was closed from Mission to Highwa…

The Cocos Fire, previously known as the Twin Oaks Fire and later the Washingtonia Fire, was a wildfire that ignited around 1730 PST on the 14th in the hills south of California State University, San Marcos and burned 400 acres by later in the evening. Flames were reported near ho…

Wind gusts in excess of 70 mph toppled trees, damaged countless roofs, snapped power poles, and overturned high profile vehciles. Numerous large oaks and Eucalyptus were snapped at their bases. Road signs that were not consumed by fire were toppled or snapped in half by the high …

Public uploaded a photo showing a grocery store sign toppled over. Exact time of occurrence is unknown.

Daily record high temperature of 110 at Escondido. Tied daily record high temperature of 103 at Ramona.

Daily record high temperature of 104 at Ramona Airport.

A public source reported dense fog with a visibility of 0.06 SM 2 miles NNW of El Cajon.

A public source reported dense fog with a visibility of 0.25 SM 4 miles west of Poway.

SDGE site at Viejas in Alpine just south of I-8 had gust 59 mph. Tree was reported down on Via Belota.

The Center fire on I-15 and Camino Del Norte. There was one injury reported. The brush fire was about 4 acres and on a hill near homes. Relative humidity as low as 9 to 12 percent.

Lilac 2 brush fire along I-15 southbound burned 100 acres. Started at 1230 am. At 3 am relative humidity was as low as 6 percent and Santa Ana winds gusting to 24 mph. Evacuation orders issued for homes on the ridge.

Sill Hill weather station owned by SDGE had peak Santa Ana Wind gusts of 102 mph. The all-time high is 105 mph.

Montgomery Field reported dense fog 0.25 mile visibility from 300 am to 900 am.

The Ramona airport ASOS reported dense fog of less than 1/4 mile visibility at 5 am.

A wildfire broke out west of I-15 in Fallbrook called the Garden fire. At Gird avenue and Pala Mesa road. The wildfire did burn 50 acres and threated several homes. The relative humidity was as low as 10 percent. The brush fire resulted in evacuation orders and warnings.

Brush fire burned 40 acres near San Diego State University at Montezuma Road and Fairmount Avenue. The wildfire changed names so there was some confusion on the name initially, Montezuma or Fairmount. 6 homes reported damaged per media at Lila Drive and Lucille Drive. Evacuation …

Dense fog, 0.25 mile visibility, reported at MCAS Miramar.

Dense fog reported at Montgomery Field airport in San Diego from 130 am to 800 am PDT. This is along SR163 and I-15 in Kearny Mesa. Hundreds of small planes use this airport daily.

Dense fog moved across the inland San Diego county valleys as the heat wave weakened. Visibility as low as 0.25 mile at MCAS Miramar.

High temperatures across inland San Diego county valleys reached 100 to 112F from September 4 to 9, 2024. The hottest days were September 6 and 8, when maximum temperatures reached 103 to 110F along I-15 corridor.

Keys fire in Valley Center resulted in evacuations. Old Lilac road and Keys Creek road. Wildfire was just over 50 acres.

The inland San Diego county valleys had an extended period of high temperatures in the 90s with hottest days reached 99 to 102F. This included RNM airport in Ramona.

Gusty Santa Ana winds occurred across the San Diego County Valleys on December 9. The following are the strongest wind gusts across the zone: Alpine RAWS: 64 MPH. Hauser Mountain: 59 MPH.

Large branch downed by wind near the intersection of Rice Canyon Rd and Clearwater Rd east of I-15. SDGE Rainbow Heights gusted 31 mph at 630 am.

High winds occurred across portions of the San Diego County Valleys, mainly in the coastal mountain slopes and foothills, starting on the evening of November 20th and lasting through the morning and early afternoon hours on the 21st. The Hellhole Canyon San Diego Gas and Electric…

The Escala Fire started in the mid-afternoon hours on October 30 at Battle Mountain Open Space east of I-15 near Rancho Bernardo. Evacuation warnings and orders were issued for nearby areas. The fire burned 5 acres and achieved 90% containment several hours after ignition. Two la…

Gusty Santa Ana winds occurred across the San Diego County Valleys starting during the morning hours on October 29, with the highest gusts occurring from the morning on October 30 through the early morning hours on October 31. Widespread wind gusts over 35 mph were recorded in th…

High temperatures across the San Diego County Valleys on October 18th through the 20th were notably hotter than seasonal normal. Highs were routinely in the upper 80s to upper 90s during this time. The hottest day was October 20th when San Pasqual Valley hit 99 degrees for a high…

High temperatures across the San Diego County Valleys on October 4th through the 8th were notably hotter than seasonal normal. Highs routinely ranged from the middle 80s to upper 90s. The hottest day was October 5th when San Pasquakl Valley hit 99 degrees for a high, Ramona hit 9…

Hot temperatures impacted the San Diego County Valleys September 8-10, 2023. High temperatures reached the upper-90s, with overnight lows falling mainly into the 60s and 70s. The hottest temperatures occurred on September 8: Ramona: 99/61 Poway: 97/66 Alpine: 96/69 Gillespie Fiel…

Very hot daytime temperatures occurred across the San Diego County Valleys on August 28-30th, when Excessive Heat Warnings were in effect. Highs between 94-106 degrees occurred each afternoon, with the hottest temperatures occurring near Escondido, Ramona, and Poway.

Tropical Storm Hilary produced widespread tropical storm-force winds across Southern California from early morning on August 20 through the early overnight hours into August 21. The following are the top wind gusts reported across the San Diego County Valleys: Hauser Mountain: 78…

A long-duration, excessive heat wave occurred across the San Diego County Valleys from July 11-22. Highs reached the upper-80s and 90s each day, with a few locations topping 100 degrees. The following are the highest temperatures reported during the event, and the day on which th…