Red Flag Warning in San Diego and Riverside counties.
October 21, 2017, 9:40:00 PM to October 24, 2017, 6:00:00 PM

San Diego County Inland Valleys-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest-San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest-San Gorgonio Pass Near Banning- Orange County Coastal Areas-Orange County Inland Areas- 940 PM PDT Sat Oct 21 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 6 PM PDT TUESDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY... * WIND...For Sunday...areas of northeast winds 15 to 25 mph with gusts to 35 near the coastal foothills and below passes and canyons. Stronger and more widespread winds for Monday and Tuesday with northeast winds 20 to 30 mph with gusts to 55 mph. * HUMIDITY...Lowest daytime humidity of 5 to 10 percent Sunday...and around 5 percent Monday and Tuesday with poorest overnight recovery in the windier areas near the coastal foothills. * TIMING...Through Tuesday...with the most extreme combination of low humidity...stronger and more widespread winds...and heat on Monday and Tuesday. * OUTLOOK...Winds will weaken Wednesday with some improvement in humidity. * IMPACTS...Any fires that develop will likely spread rapidly... especially Monday and Tuesday. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.

Excessive Heat Warning in San Diego, San Bernardino and Riverside counties.
October 21, 2017, 9:17:00 PM to October 24, 2017, 8:00:00 PM

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 917 PM PDT Sat Oct 21 2017 ...VERY HOT IN THE COASTAL AND VALLEY AREAS MONDAY AND TUESDAY... .Santa Ana winds and strong high pressure aloft will bring hot weather Sunday through Wednesday. Monday and Tuesday will be the hottest days with highs above 100 in the valleys and some coastal areas. Temperatures may not fall below 70 Monday night in some of the windier coastal foothill locations. Still very warm Wednesday with highs in the 90s. Cooler Thursday and Friday. San Diego County Coastal Areas- San Bernardino and Riverside County Valleys-The Inland Empire- San Diego County Valleys-Orange County Coastal Areas- Orange County Inland Areas- Including the cities of Vista, Carlsbad, Encinitas, Chula Vista, National City, San Diego, Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido, El Cajon, San Marcos, La Mesa, Santee, Poway, Huntington Beach, Costa Mesa, Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 917 PM PDT Sat Oct 21 2017 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO 8 PM PDT TUESDAY... * TEMPERATURE...Highs in the 90s near the coast and from 97 to 107 in Inland Orange County, the western Inland Empire and western valleys in San Diego County. The beaches will not be quite as hot with highs mostly in the 80s. * IMPACTS...Heat related illness is likely for those involved in strenuous outdoor activity, or those with health conditions that do not have adequate access to air conditioning. If untreated, heat illness events could be fatal. Never leave children or pets inside a parked car! * OUTLOOK...Still very warm Wednesday. Gradual cooling Thursday and Friday. PRECAUTIONARY/PREPAREDNESS ACTIONS... An Excessive Heat Warning means that a prolonged period of dangerously hot temperatures will occur. The combination of hot temperatures and high humidity will combine to create a dangerous situation in which heat illnesses are likely. Drink plenty of fluids...stay in an air-conditioned room...stay out of the sun... and check up on relatives and neighbors.

06:59 am
06:07 pm
  • SUNSundayClear7661
  • MONMondayClear7764
  • TUETuesdayClear8664
  • WEDWednesdayClear8065
  • THUThursdayMostly clear7463
  • FRIFridayPartly cloudy7263
  • SATSaturdayPartly cloudy7262
  • Clear63
  • Clear63
  • Clear62
  • Clear61
  • Clear62
  • Clear62
  • Clear65
  • Clear70
  • Clear74
  • Clear76
  • Clear75
  • Clear76

Weather news

El Niño & Drought

view more

More Weather

  • Weather likely to be warmer, drier than average this winter in San Diego

    Weather likely to be warmer, drier than average this winter in San Diego

    San Diego County can expect winter weather that’s drier and warmer than average, the U.S. Climate Prediction Center said Thursday in an outlook that raises the possibility of increased wildfire activity. Forecasters said there is a better than even chance that a La Nina will develop in the equatorial...

  • Excessive heat and fire weather watch issued for San Diego County

    Excessive heat and fire weather watch issued for San Diego County

    An intense heat wave fanned by Santa Ana winds will descend upon San Diego County on Sunday, raising the risk of wildfires in a region that’s had little rain for months. The National Weather Service says that a fire weather watch will be in effect for the county’s mountains and valleys from 8 a.m....

  • Hot weather, growing surf kicks off work week

    Hot weather, growing surf kicks off work week

    Temperatures will be far above normal to start the work week, and a strong swell will begin rolling ashore from the southwest, the National Weather Service says. Monday’s high in San Diego will reach the mid-to-upper 80s, with readings near 90 a few miles from the coast. The average high this time...

  • NASA satellites capture breadth of Northern California wildfires

    NASA satellites capture breadth of Northern California wildfires

    NASA has released satellite images that give a sense of scope to the wildfires that have destroyed more than 1,500 structures in Northern California and killed at least 10 people. These images were taken by the comparatively low-altitude Terra and Aqua satellites on Monday, as they moved in their...

  • Scientists foresee major change in rainfall patterns across California

    Scientists foresee major change in rainfall patterns across California

    Unprecedented amounts of rain fell across Northern California last winter, ending a damaging drought that reached to the southern edges of San Diego County. The dramatic turnaround was highlighted by a series of powerful, river-like storms that might become more frequent in the future. That’s the...