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California 14 active alerts

Live National Weather Service warnings, watches, and advisories for California. The map below shows where each alert is in effect.

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Summary

  • 9 Severe
  • 4 Minor
  • 1 Unknown

9 Severe · alerts

  • Flash Flood Warning

    Flash Flood Warning issued August 11 at 5:08PM PDT until August 11 at 7:15PM PDT by NWS Las Vegas NV

    Area
    San Bernardino, CA
    Until
    until 2:15 AM UTC
    Urgency
    Immediate
    Instructions

    Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

  • Flash Flood Warning

    Flash Flood Warning issued August 11 at 5:04PM PDT until August 11 at 7:30PM PDT by NWS Las Vegas NV

    Area
    Inyo, CA
    Until
    until 2:30 AM UTC
    Urgency
    Immediate
    Instructions

    Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.

  • Severe Thunderstorm Warning

    Severe Thunderstorm Warning issued August 11 at 6:54PM PDT until August 11 at 7:45PM PDT by NWS Las Vegas NV

    Area
    San Bernardino, CA
    Until
    until 2:45 AM UTC
    Urgency
    Immediate
    Instructions

    Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways. Report severe weather to your nearest law enforcement agency or the National Weather Service office in Las Vegas NV.

  • Flash Flood Warning

    Flash Flood Warning issued August 11 at 5:26PM PDT until August 11 at 7:45PM PDT by NWS Las Vegas NV

    Area
    San Bernardino, CA
    Until
    until 2:45 AM UTC
    Urgency
    Immediate
    Instructions

    Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.

  • Flood Warning

    Flood Warning issued August 11 at 6:26PM PDT until August 11 at 9:30PM PDT by NWS Las Vegas NV

    Area
    San Bernardino, CA
    Until
    until 4:30 AM UTC
    Urgency
    Expected
    Instructions

    Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.

  • Flash Flood Warning

    Flash Flood Warning issued August 11 at 6:46PM PDT until August 11 at 9:45PM PDT by NWS Las Vegas NV

    Area
    San Bernardino, CA
    Until
    until 4:45 AM UTC
    Urgency
    Immediate
    Instructions

    Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.

  • Fire Weather Watch

    Fire Weather Watch issued August 11 at 10:19AM PDT until August 13 at 9:00PM PDT by NWS Reno NV

    Area
    Surprise Valley California; Western Lassen, Eastern Plumas, and Eastern Sierra Counties; Greater Lake Tahoe and Truckee Area; Eastern Lassen County; Northern Washoe County
    Until
    until 9:00 PM UTC
    Urgency
    Future
    Instructions

    Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips.

  • Flood Watch

    Flood Watch issued August 11 at 2:22PM PDT until August 13 at 9:00PM PDT by NWS Reno NV

    Area
    Mono; Mineral and Southern Lyon Counties
    Until
    until 11:00 PM UTC
    Urgency
    Future
  • Fire Weather Watch

    Fire Weather Watch issued August 11 at 9:57AM PDT until August 13 at 9:00PM PDT by NWS Sacramento CA

    Area
    Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft; Sierra Nevada of Yuba-Sierra-Nevada-Placer Counties Between 3000-5000 ft Including Interstate 80; Sierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado and Amador Counties Between 3000-5000 ft Including Highway 50; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calaveras and Tuolumne Counties Between 3000-5000 ft; Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ft
    Until
    until 11:00 PM UTC
    Urgency
    Future
    Instructions

    A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

4 Minor · alerts

  • Coastal Flood Advisory

    Coastal Flood Advisory issued August 10 at 10:18PM PDT until August 13 at 2:00AM PDT by NWS San Francisco CA

    Area
    San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
    Until
    until 7:00 AM UTC
    Urgency
    Expected
    Instructions

    If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

  • Coastal Flood Advisory

    Coastal Flood Advisory issued August 11 at 2:25PM PDT until August 12 at 1:00AM PDT by NWS Eureka CA

    Area
    Northern Coastal Humboldt
    Until
    until 8:00 AM UTC
    Urgency
    Expected
    Instructions

    A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore. Feet Above Ground is locally defined as feet above the Highest Astronomical Tide or HAT.

  • Coastal Flood Advisory

    Coastal Flood Advisory issued August 11 at 12:07PM PDT until August 12 at 11:00PM PDT by NWS San Diego CA

    Area
    San Diego County Coastal Areas; Orange County Coastal
    Until
    until 1:15 PM UTC
    Urgency
    Expected
    Instructions

    If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

  • Coastal Flood Advisory

    Coastal Flood Advisory issued August 11 at 1:56PM PDT until August 13 at 12:00AM PDT by NWS Los Angeles/Oxnard CA

    Area
    Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
    Until
    until 7:00 AM UTC
    Urgency
    Expected
    Instructions

    Take the necessary actions to protect flood-prone property. Do NOT drive around barricades or through water of unknown depth.

1 Unknown · alert

  • Air Quality Alert

    Air Quality Alert issued August 11 at 10:19AM MST by NWS Phoenix AZ

    Area
    Imperial County Southwest; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley
    Until
    until 7:00 AM UTC
    Urgency
    Unknown
    Instructions

    To protect your health, check air quality levels and act as needed: * When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity. * When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors. * When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid extended or intense outdoor activity. * When AQI is "Hazardous" (maroon), everyone should avoid all outdoor physical activity. * ADDITIONAL DETAILS... To help keep indoor air clean when air quality is poor: * Keep windows and doors closed * Run your air conditioner and/or an air purifier * Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool * Avoid other sources of pollution such as fireplaces, candles, incense, grilling, and gasoline-powered lawn and garden equipment To help minimize outdoor particle pollution levels: * Carpool, telecommute, reduce trips, or take public transportation * Slow down if driving on dirt roads * Stabilize loose soils

Other state alerts