San Diego weather

EXCESSIVE HEAT WARNING FOR DESERTS

East County News Service

June 2, 2021 (San Diego) -- The National Weather Service has issued an Excessive Heat Warning for San Diego County Deserts, effective until Friday at 9 p.m. Dangerously hot conditions with high temperatures of 105 to 110 degrees expected.

Several County facilities will be open as Cool Zones in Alpine, Borrego Springs, Fallbrook, Lakeside, Potrero, Santa Ysabel, Spring Valley, and Valley Center. For location information, hours of operation, and tips to beat the heat, visit: www.coolzones.org.

“DAMAGING” WINDS FORECAST FOR MONDAY AND TUESDAY, ALONG WITH SNOW AND FOG IN MOUNTAINS

By Miriam Raftery

Photo by Miriam Raftery: storm clouds over Spring Valley

March 14, 2021 (San Diego’s East County) – Very strong, “damaging” winds are forecast for Monday and Tuesday in San Diego’s mountain and desert regions. West winds with gusts of up to 70 miles per hour will create dangerous driving conditions for high-profile vehicles due to strong winds particularly on I-8 near Jacumba Hot Springs, as well as reduced visibility due to blowing dust in desert areas.

STORMS BRING HIGH WINDS, COLD TEMPERATURES AND SNOW AT LOW ELEVATIONS

East County News Service

March 10, 2021 (San Diego’s East County) – A multi-day storm is expected to continue today through Friday, with chilly temperatures and heaviest rainfall today. Snow could drop as low as 3,500 feet tonight and tomorrow, the National Weather Service predicts.

Treacherous travel and traffic delays are possible through mountain passes, including on I-8 in San Diego’s East County and I-15 in Riverside County due to freezing conditions and reduced visibility in snow and fog. Winds  with gusts up to 60 miles per hour could bring damage to temporary structures such as tents and canopies.

FLASH FLOOD WATCH: ATMOSPHERIC RIVER BRINGING HEAVY RAIN AND SNOW

By Miriam Raftery

January 28, 2021 (San Diego’s East County)—A flash flood watch has been issued for San Diego County’s mountains, valleys and coatstal areas from 7p.m. Thursday to 4 p.m. Friday due to an atmospheric river moving across Southern California . The storm is forecast to bring widespread moderate to heavy rain and snow, with flash flooding possible.  If you encounter a flooded roadway, the Sheriff advises to "turn around, don't drown" since only a few inches of swiftly flowing water can quickly carry a vehicle into deeper water and submerge it.

Deep snow accumulations in the mountains will lead to difficult travel and chain restrictions for vehicles.  The storm is forecast to drop two to five inches of snow in local mountains. Snow levels are expected above 5,000 feet Thursday, dropping to as low as 4,500 feet by Friday. There is also a chance of thunderstorms, according to meteorologist Samantha Connolly with the National Weather Service.

CHP ISSUES "SNOW ETIQUETTE" GUIDELINES

East County News Service

File photo by Billy Ortiz

January 22, 2021 (San Diego’s East County) -- With heavy snow forecast in our local mountains over the next several days, the California Highway Patrol asks the public to practice good “snow etiquette” when visiting the Mount Laguna/Julian area.

The advisory aims to protect public safety, assure that travelers have chains or snow tires, respect private property, and help keep our mountain areas clean for residents. Law enforcement will be present enforcing these guidelines and laws.

HEAVY SNOWFALL FORECAST FOR MOUNTAINS, POSSIBLE FLOODING IN URBAN AREAS

File photo: San Diego County snow plow in the Laguna mountains

January 22, 2021 (San Diego’s East County) – Two cold winter storms are forecast to sweep into our region.  The first will bring widespread rain this weekend with snow at higher elevations. The second, a much stronger storm, is forecast to bring heavy rains and possible urban flooding, also dropping the snow level down to below 3,000 feet in mountain and high desert areas Monday and Tuesday.

The first storm Friday night and Saturday could bring 1 to 5 inches of snow and possible thunderstorms. Storm two could bring up to 10 inches of snow in the mountains as well as heavy rainfall downpours in urban areas. Both storms will also bring gusty southwest winds and near-gale force winds over coastal waters as well as high surf and hazardous marine conditions.

STRONG SANTA ANA WINDS TO ROAR INTO REGION

By Miriam Raftery

January 15, 2021 (San Diego) – Santa Ana winds are forecast to roar into our region, bringing high fire danger Friday and Saturday along with soaring temperatures up to 20 degrees above  normal.

SDG&E has announced possible public safety power shutoffs to more than 11,000 customers across San Diego County’s mountain and rural communities. For updates, see the outage page at www.SDGE.com.

The National Weather Service warns that “strong, damaging Santa Ana winds” are expected to again be likely Monday through Wednesday—along with likely high fire danger if humidity remains low.

SNOW BLANKETS MOUNTAINS; WINTER STORM WARNING IN EFFECT THROUGH TUESDAY MORNING

By Miriam Raftery

Photo:  Laguna Mountain Lodge webcam

December 28, 2020 (San Diego’s East County) – Heavy snow has fallen on Mount Laguna, while a lighter dusting of snow has blanketed the Cuyamaca and Julian communities. Elsewhere across the county, the cold winter storm brought much-needed rain.

The National Weather Service has issued a winter storm warning through Tuesday. Elevations over 5,000 feet such as Mount Laguna may receive 14 inches of snow, with up to 20 inches at elevations over 6,500 feet such as Palomar Mountain. Bring tire chains if traveling in the mountain areas. Chains were required today on parts of State Route 79 and Old Highway 80, while a portion of Sunrise Highway was closed.

POWER OUTAGES ACROSS EAST COUNTY COULD LAST DAYS AMID HIGH WINDS, RED FLAG WARNING

East County Wildfire & Emergency Alerts

December 2, 2020 (San Diego’s East County) – SDG&E has shut off power to 22,000 homes tonight as winds up to 76 miles per hour have been recorded in parts of East County.  A red flag warning is in effect starting tonight through Saturday at 10 p.m. for inland valleys and mountains countywide due to low humidity and strong winds with gusts of 60 miles per hour or more.

SDG&E earlier  warned 88,700 customers of potential for prolonged public safety shutoffs that could last several days. Tonight, power has been shut off to thousands of residents in areas that include Alpine, Boulevard, Campo, Deerhorn Valley, Dehesa, Descanso, Jacumba, Jamul, Julian, Pine Valley, Potrero, Ramona, Rancho San Diego, Spring Valley, Valley Center, Warner Springs, Wynola and more. Power could be off through Sunday or Monday, according to SDG&E.

Brian D’Agostino, SDG&E’s director of fire science and climate adaptation, will provide a video briefing daily before 3 p.m. for the duration of the weather event. These video briefings will be available on SDG&E’s YouTube channel. The link to today’s briefing is available here. SDG&E will also be posting hourly updates on its NewsCenter at sdgenews.com, as needed.

SDG&E WARNS 2,700 CUSTOMERS OF POTENTIAL PUBLIC SAFETY POWER SHUTOFFS AFTER THANKSGIVING

East County News Service

Nov. 25, 2020  (San Diego’s East County)  – Stock up on coolers to keep your Thanksgiving leftovers chilled.  Due to a Red Flag Warning  issued by the National Weather Service and forecasted Santa Ana winds, San Diego Gas & Electric (SDG&E) has notified approximately 2,700 customers in the communities of Alpine, Campo Reservation, Crestwood, Descanso, Julian, La Posta Reservation, Manzanita Reservation, Pala, Santa Ysabel, Santa Ysabel Reservation, Valley Center and Viejas Reservation, that it may have to turn off power to reduce wildfire risk beginning early Friday morning.      

 “The last thing we want to be telling any of our customers right now is that we may have to shut off power given the Thanksgiving holiday weekend and the ongoing COVID pandemic,” said SDG&E’s Chief Customer Officer Scott Crider. “Public Safety Power Shutoffs are a last resort to prevent wildfires, and our employees are dedicated to doing everything we can to minimize impacts should it come to that. We’re hoping Mother Nature cooperates, but in an abundance of caution we have reached out to our customers so they can be prepared.”

Several hundred SDG&E linemen, troubleshooters and support personnel will be working on Thanksgiving Day and through the holiday weekend to ensure that power can be restored as quickly and as safely as possible, should safety power shutoffs occur.

DRY WEATHER, FIRE DANGER RETURNS LATE THIS WEEK

By Miriam Raftery

November 22, 2020 (San Diego’s East County) – Dry weather is forecast this week, with fire weather conditions over the Thanksgiving holiday weekend.

Temperatures will be at or slightly below normal with patchy dense fog tonight and gusty westerly winds Monday across mountain passes and in the deserts.  By late Thursday, moderate Santa Ana winds could bring gusts up to 50 miles per hour.

FIRST SNOWFALL OF SEASON BLANKETS MOUNTAIN AREAS, FREEZE FORECAST FOR HIGH DESERTS TONIGHT

East County News Service

Photo: Snow on Mount Laguna, by Dave Hogan

November 9, 2020 (San Diego’s East County) – Snow fell overnight on mountaintops in San Diego's inland region including Mount Laguna in East County, with more snow showers possible at higher elevations tonight.  On Mount Palomar, a new record low temperature of 25 degrees was recorded early this morning.

In the high desert areas such as Campo, below freezing temperatures as low as 29 degrees are forecast tonight.

Frost and freeze conditions could kill crops and sensitive vegetation, also potentially damaging unprotected plumbing, the National Weather Service warns.

RED FLAG WARNNG: HIGH FIRE DANGER TODAY

 

Source: San Diego County Office of Emergency Services

September 28, 2020 (San Diego's East County) -- The National Weather Service in San Diego has issued a Red Flag Warning, which is in effect from 5:00 a.m. to 5:00 p.m. on Monday, 9/28 for the inland valleys and mountains of San Diego County. The Red Flag Warning has been issued due to strong gusty winds and low humidity.

Areas will see winds from 15 to 25 mph with gusts up to 40 mph. Higher gusts are possible in the windiest locations. More forecast information and updates are available from the National Weather Service.

Any fires that develop may spread rapidly with extreme fire behavior, threatening life and property. Be prepared to evacuate if needed, the County warns in an alert to all area residents.

SDG&E NOTIFIES APPROXIMATELY 700 BACKCOUNTRY RESIDENTS TO PREPARE FOR POTENTIAL PUBLIC SAFETY POWER SHUTOFFS DUE TO SANTA ANA WINDS AND FIRE WEATHER WATCH

September 27, 2020 (San Diego) – Due to elevated fire weather conditions and forecasted Santa Ana winds, San Diego Gas & Electric (SDG&E) has notified certain backcountry residents that it may have to turn off power in order to reduce wildfire risk in the coming days. Public Safety Power Shutoffs (PSPS) are approved by state regulators as an important safety tool to mitigate fire risk during dangerous weather conditions.

The National Weather Service has issued a Fire Weather Watch for Monday for inland San Diego County mountains and foothills. Weak to moderate strength Santa Ana winds are expected to arrive today, peak Monday morning in strength and become weak to moderate by the end of the day. In preparation, SDG&E has activated its Emergency Operations Center to monitor conditions 24/7 and has organized personnel and pre-staged materials and equipment for response.

WILD WEATHER CONTINUES: THUNDERSTORMS, FLASH FLOODS AND HIGH HEAT

By Miriam Raftery

August 22, 2020 (San Diego’s East County)  -- The monsoon season is here – with mountain thunderstorms expected each afternoon through Monday with brief heavy rain, small hail, lightning and strong erratic winds.  There is also a potential for flash flooding today and tomorrow across our inland region, as this map shows.

While thousands of lightning strikes across northern and central California have caused major wildfires,  Southern California has also had numerous lightning strikes, as the Earth Network image sent by the National Weather Service shows for Friday, Aug. 21:

FLASH FLOOD WARNING: DANGEROUS THUNDERSTORMS THIS AFTERNOON

August 21, 2020 (San Diego's East County) -- The National Weather Service has detected dangerous thunderstorms across portions of East County. A flash flood warning is in effect now through late this afternoon for areas in and around Pine Valley, Boulevard, Mount Laguna and Cuyamaca.

Move to high ground immediately if you are in these areas.

COOL ZONES OPEN ACROSS EAST COUNTY DUE TO HIGH HEAT

East County News Service

August 17, 2020 (San Diego’s East County) – Cool zones adapted to COVID-19 public health protections have been opened at eight county libraries across San Diego’s inland region during the current extreme heat conditions.  The locations are open from 12 noon to 5 p.m.Mondays through Friday (except the Borrego Springs location, which is also open weekends). 

Masks and social distancing are required by all visitors and staff.  Temperature checks are also required before entering a cool zone and time limits may be imposed due to limited capacity. No animals are permitted, except for service animals. Below is the full list of county cool zones:

EXCESSIVE HEAT WARNING

East County News Service

August 14, 2020 (San Diego's East County) -- The National Weather Service has issued an extreme heat warning in effect this weekend through Monday at 8 p.m. Dangerously hot conditions with temperatures from 98 to 106 degrees Fahrenheit are forecast across San Diego County’s mountains, valleys and desert areas as well as much of Riverside and San Bernadino counties.

Extreme heat will significantly increase the potential for heat related illnesses, particularly for those  working or participating in outdoor activities.

Follow these precautions:

FOURTH OF JULY WEEKEND FORECAST: FIRE WEATHER AND RIP CURRENTS

By Miriam Raftery

June 30, 2020 (San Diego’s East County) – The weather will be warming up over the Fourth of July weekend. But before you head to the beach, be aware that elevated surf is forecast to generate strong rip currents that will be hazardous to swimmers this weekend and next week.

On Sunday and Monday,  breezy winds, warmer conditions and low relative humidity will create elevated fire weather conditions, says meteorologist Casey Oswant with the National Weather Service. The conditions are “favorable for fast-moving grass fires,” Oswant cautions.

WIND ADVISORY IN EFFECT NOW; FIRE WEATHER STARTING SUNDAY

By Miriam Raftery

June 5, 2020 (San Diego’s East County) – A wind advisory is in effect for East County’s mountain areas and deserts through Sunday morning with gusts up to 60 miles per hour. Light showers are possible west of the mountains through Saturday afternoon. But a warming trend after that will bring elevated fire weather conditions Sunday through Tuesday, the National Weather Service predicts.

"DANGEROUS" HEAT WARNING FOR DESERT, HEAT ADVISORY FOR INLAND VALLEYS ALL WEEK

 

East County News Service

May 5, 2020 (San Diego’s East County) -- The National Weather Service has issued an excessive heat waring for San Diego County deserts, where dangerously hot temperatures of 103 to 108 degrees are forecast each afternoon this week. In addition, a  heat advisory is in effect local valleys including the cities of Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway today through Friday.

STORMS TO BRING RAIN, COLD AND SNOW DOWN TO 4,000 FEET

East County News Service

March 23, 2020 (San Diego)--A storm system will bring light showers today through Wednesday, with a new storm system forecast for Wednesday afternoon into Thursday.  This will be a colder storm, with snow levels possibly falling to 4000’ or lower.

There will be less moisture, but nevertheless, some accumulating snowfall is likely in the mountains. Roads may be slippery due to rain and snow, with chains potentially required at higher elevations.

TWO NEW STORMS TO BRING FLASH FLOOD RISKS AND SNOW TO OUR INLAND REGION

By Miriam Raftery

Photos: Alex Tardy, National Weather Service

March 11, 2020 (San Diego’s East County) – A pair of storms are forecast to bring heavy rain this week and next, with snow dropping to 3,000 feet by next week.  Flash floods, lightning and mudslides may also occur.

“ATMOSPHERIC RIVER” TO DRENCH REGION MONDAY THROUGH THURSDAY

By Miriam Raftery

March 7, 2020 (San Diego) – Following light showers on Sunday, an “atmospheric river” is on track to drop heavy rainfall across our region Monday through Thursday including mountains, valleys, deserts and coastal regions of San Diego County.  There is also a chance of thunderstorms and risk of flash flooding.

Heaviest rains are forecast for Tuesday and Wednesday, the National Weather Service predicts.

DANGEROUS HIGH WINDS, WEATHER SERVICE WARNS

February 26, 2020 -- A high wind warning is in effect until 4 p.m. for San Diego's mountains and inland valleys. A wind gust of 106 miles per hour was measured early this morning at Sill Hill in East County--possibly the highest ever recorded in our county, the Natioal Weather Service reports.  Gusts up to 75 mph with sustained winds of 30-40 mph are forecast for today. 

The National Weather Service issued this specific warning: "Damaging winds will blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles." 

SDG&E's outage map at https://www.sdge.com/residential/customer-service/outage-center/outage-map  reports numerous outages have already occurred across our mountain and rural areas this morning. You can view estimated restoration times on the map.

COLD STORM, FREEZING TEMPERATURES AND HIGH WINDS TO IMPACT REGION

By Miriam Raftery

February 2, 2020 (San Diego’s East County) – Strong winds with gusts up to 75 miles an hour are forecast tonight through Monday afternoon, with a high wind warning in effect in our local mountains and light snow possible.

Monday through Wednesday, a hard freeze watch is in effect for the high deserts, where temperatures could dip into the high teens to low 20s and snow flurries are possible. In the low deserts and valleys, a freeze watch is also issued, with temperatures in the upper 20s to low 30s.

Along the coasts, a gale warning is in effect due to strong winds over coastal waters tonight and Monday.

SANTA ANA WINDS AND WARMER WEATHER FORECAST TODAY THROUGH FRIDAY

By Miriam Raftery

January 29, 2020 (San Diego’s East County) – The National Weather Service has issued a wind advisory for San Diego County’s inland region. The advisory is in effect from 4 p.m. today through 12 noon on Friday for San Diego’s mountains and valleys, with gusts up to 55 miles per hour forecast. In local desert areas, the wind advisory is in effect from 10 a.m. today to 6 p.m. tonight.

In addition to potentially damaging winds, the forecast also includes elevated surf at beaches with waves up to six feet, and a warming trend through the week with temperatures rising into the 80s by the weekend.

WATCH FOR WINDY WEATHER

East County News Service

January 14, 2020 (San Diego's East County) -- A storm system will bring gusty winds as well as a chance of rain and mountain snow Thursday into early Friday morning. Winds at 35-45 miles per hour with isolated gusts up to 50-60 mph are in wind-prone mountain and desert passes.

Light rainfall of 1-3 inches is forecast in most locations, with up to 6 inches at higher elevations, according to National Weather Service meteorologist Adam Roser.  The snow level may drop to 5,000 feet, so be prepared if driving in mountain areas.

HIGHWAYS CLOSED DUE TO SNOW

By Miriam Raftery

Photo, left via CHP:  I-8 closed due to snow

Photo, right: Julian snow, via Visit Julian webcam

December 26, 2019 (San Diego’s East County)—Travelers are encountering road closures on several major highways this morning due to heavy snowfall:

  •  I-8 is closed west of Willows Road in Alpine to the Imperial Highway in Imperial County due to heavy snow, with collisions reported and some motorists attempting to run through roadblocks. 
  • On State Route 94 at Otay Lakes Rd., flooding has reportedly halted traffic on both sides of the rushing waters one to two feet deep.
  • CHP has shut down  Highway 78 at State Route 79 into Julian; traffic to Julian is reportedly gridlocked according to CHP. The road may reopen soon with chain controls in effect.
  • Just north of San Diego County, travelers should be aware that the Cajon Pass on I-15 and the Grapevine on I-5 are both shut down due to heavy snow.

MAJOR WINTER STORM TO SOCK REGION OVERNIGHT

East County News Service

December 25, 2019 (San Diego) -- A major winter storm is going to affect the region after midnight tonight through Friday morning, meteorologist Adam Roser with the National Weather Service predicts. Heavy snow in the mountains will make travel hazardous, especially on highways through the mountains and high desert, with up to four feet of snow above 6,000 feet and as much as two inches of snow as low as 2,500 feet.

Heavy rain is forecast in all other areas with urban/small stream flooding likely and a slight risk of flash flooding. The San Diego River could reach flood stage after midnight.

Gusty winds will be expected with this storm from the coast to the mountains. A wind advisory is now in effect until 6 p.m. tonight in coastal areas and valley.  A winter storm warning will be in effect from 6p.m. tonight until 6 a.m. Friday for local mountains. A winter weather advisory will be effective from 4 a.m. to 6 a.m. Friday for the high desert.

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