Whittier, CA Warnings, Watches and Advisories

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Whittier.

Use the Radar Maps link provided to understand the trajectory of a storm.

Heat Advisory issued July 10 at 4:03PM PDT until July 15 at 11:00PM PDT by NWS Hanford CA

* WHAT...High temperatures up to 105 expected. * WHERE...The San Joaquin Valley area of Central California and a portion of the Sierra Nevada Foothills. * WHEN...From 11 AM Friday to 11 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.

Extreme Heat Warning issued July 10 at 2:00PM PDT until July 14 at 11:00PM PDT by NWS Eureka CA

* WHAT...Dangerously hot conditions with high temperatures above 105 in the lower elevation valley locations expected through Monday. Moderate to locally extreme heat risk is expected. * WHERE...Trinity County. * WHEN...From 11 AM Friday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...The valleys may see some relief overnight with lows in the 60s, but the mid slopes and ridges will likely stay in the 70s.

Heat Advisory issued July 10 at 2:00PM PDT until July 13 at 11:00PM PDT by NWS Eureka CA

* WHAT...Moderate to locally major heat heat risk is expected with highs between 100 and 105 in the valleys. * WHERE...Lake County, and Northeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows in the low 60s will provide some relief in the valleys, but higher terrain may see lows remain in the 70s.

Heat Advisory issued July 10 at 2:00PM PDT until July 13 at 11:00PM PDT by NWS Eureka CA

* WHAT...Moderate to major heat risk is possible with highs of 100 to 105. * WHERE...Humboldt Interior, and Del Norte Interior. * WHEN...From 11 AM Saturday to 11 PM PDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...The warmest locations will be in eastern Del Norte and Humboldt counties.

Heat Advisory issued July 10 at 2:00PM PDT until July 12 at 11:00PM PDT by NWS Eureka CA

* WHAT...Moderate heat risk is expected with highs from 100 to 105 each afternoon. * WHERE...Northwestern Mendocino Interior and Southeastern Mendocino Interior. * WHEN...From 11 AM Friday to 11 PM PDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Overnight lows around 60 will provide some relief in the valleys, but higher terrain may see lows remain in the 70s.

Heat Advisory issued July 10 at 1:45PM PDT until July 14 at 8:00PM PDT by NWS Medford OR

* WHAT...High temperatures of 95 to 100 are expected. Low temperatures will be mainly in the mid to upper 50s. * WHERE...Lake County and eastern Klamath County, South Central Siskiyou County, North Central and Southeast Siskiyou County, Northeast Siskiyou and Northwest Modoc Counties, Modoc County, and Klamath Basin. This includes Klamath Falls, Lakeview, Mount Shasta, and Alturas. * WHEN...From 2 PM Saturday to 8 PM PDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...This heat wave may extend into Tuesday and Wednesday.

Extreme Heat Warning issued July 10 at 1:45PM PDT until July 14 at 8:00PM PDT by NWS Medford OR

* WHAT...Dangerously hot conditions with high temperatures of 100 to 105 expected, except up to 110 in the valleys of western Siskiyou County. Low temperatures will be mainly in the mid to upper 60s. * WHERE...In California, Central Siskiyou County and Western Siskiyou County. In Oregon, Eastern Curry County and Josephine County and Jackson County. This includes Medford, Ashland, Grants Pass, Cave Junction, Happy Camp, Fort Jones, and Yreka. * WHEN...From 2 PM Saturday to 8 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...This heat wave may extend into Tuesday and Wednesday.

Heat Advisory issued July 10 at 1:31PM PDT until July 14 at 11:00PM PDT by NWS Sacramento CA

* WHAT...High temperatures up to 95 to 110 expected. Overnight low temperatures in the upper 60s to around 80. Widespread Moderate HeatRisk with areas of Major HeatRisk. * WHERE...Burney Basin / Eastern Shasta County, Central Sacramento Valley, Mountains Southwestern Shasta County to Western Colusa County, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Shasta Lake Area / Northern Shasta County, and Western Plumas County/Lassen Park. * WHEN...From 11 AM Friday to 11 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during heat events, particularly for those working or participating in outdoor activities.

Heat Advisory issued July 10 at 1:16PM PDT until July 16 at 11:00AM PDT by NWS Reno NV

* WHAT...High temperatures of 95-105 degrees expected with overnight low temperatures in the upper 60s and lower 70s. Widespread Major HeatRisk with isolated areas of Extreme HeatRisk. * WHERE...In California, Surprise Valley California. In Nevada, Northern Washoe County, Western Nevada Basin and Range including Pyramid Lake, Greater Reno-Carson City-Minden Area, and Mineral and Southern Lyon Counties. * WHEN...From 11 AM Sunday to 11 AM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during heat events, particularly for those working or participating in outdoor activities.

Extreme Heat Warning issued July 10 at 12:26PM MST until July 10 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 116. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Portions of southeast and southern California. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Wind Advisory issued July 10 at 10:34AM PDT until July 11 at 3:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Santa Barbara County Southwestern Coast and Santa Ynez Mountains Western Range. * WHEN...Until 3 AM PDT Friday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Heat Advisory issued July 10 at 10:34AM PDT until July 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime temperatures in the 90s up to around 105 degrees. * WHERE...Eastern San Gabriel Mountains, Eastern Santa Monica Mountains Recreational Area, Santa Susana Mountains, Western San Gabriel Mountains and Highway 14 Corridor, and Western Santa Monica Mountains Recreational Area. * WHEN...Until 8 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory issued July 10 at 10:34AM PDT until July 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime temperatures in the 90s up to around 100 degrees. * WHERE...San Luis Obispo County Mountains and Santa Lucia Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory issued July 10 at 10:34AM PDT until July 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime temperatures in the upper 90s up to around 105 degrees. * WHERE...Calabasas and Agoura Hills, Santa Clarita Valley, Southeastern Ventura County Valleys, and Western San Fernando Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory issued July 10 at 10:34AM PDT until July 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime temperatures in the upper 90s up to around 105 degrees. * WHERE...San Luis Obispo County Interior Valleys and Southern Salinas Valley. * WHEN...Until 8 PM PDT this evening. * IMPACTS...There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory issued July 10 at 2:22AM PDT until July 10 at 8:00PM PDT by NWS San Diego CA

* WHAT...High temperatures of 98 to 107 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Heat Advisory issued July 10 at 2:22AM PDT until July 10 at 8:00PM PDT by NWS San Diego CA

* WHAT...High temperatures of 95 to 103 for the inland valleys near the foothills expected. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Extreme Heat Warning issued July 10 at 2:22AM PDT until July 10 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures of 115 to 120 expected. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued July 10 at 2:22AM PDT until July 10 at 8:00PM PDT by NWS San Diego CA

* WHAT...High temperatures in the 90s below 5000 feet expected. * WHERE...Riverside County Mountains and San Diego County Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Air Quality Alert issued July 9 at 5:03PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...The South Coast AQMD has updated an air quality alert due to harmful levels of ozone pollution. * WHERE...In Metropolitan Los Angeles, the San Fernando Valley, Santa Clarita, and the San Gabriel Mountains. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Until Thursday at 800 PM PDT. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS...Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. * ADDITIONAL DETAILS...To help keep indoor air clean when air quality is poor: 00 * 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, and grilling To help minimize outdoor ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Try to delay trips to the 00gas station and the use of household chemicals until the evening

Air Quality Alert issued July 9 at 3:30PM PDT by NWS Los Angeles/Oxnard CA

Corrected expiration time * WHAT...The South Coast AQMD has updated an air quality alert due to harmful levels of ozone pollution. * WHERE...In Metropolitan Los Angeles, the San Fernando Valley, Santa Clarita, and the San Gabriel Mountains. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Until Thursday at 800 PM PDT. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS...Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. * ADDITIONAL DETAILS...To help keep indoor air clean when air quality is poor: 00 * 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, and grilling To help minimize outdoor ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Try to delay trips to the 00gas station and the use of household chemicals until the evening

Air Quality Alert issued July 9 at 8:20AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...The South Coast AQMD has updated an air quality alert due to harmful levels of ozone pollution. * WHERE...In Metropolitan Los Angeles, the San Fernando Valley, Santa Clarita, and the San Gabriel Mountains. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Until Thursday at 800 PM PDT. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS...Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk. * 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, and grilling To help minimize outdoor ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Try to delay trips to the gas station and the use of household chemicals until the evening

Air Quality Alert issued July 7 at 3:58PM PDT by NWS San Diego CA

* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of ozone pollution. * WHERE...In inland Orange County, the Santa Ana Mountains, the Inland Empire, the San Bernardino Mountains, the Riverside County mountains and the Coachella Valley. Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Monday 2:30 PM until Thursday 8:00 PM. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS...Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.

Air Quality Alert issued July 7 at 2:31PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...The South Coast AQMD has issued an air quality alert due to harmful levels of ozone pollution. * WHERE...in the . Levels of ozone pollution can vary by time and location depending on emissions and air pollution transport. * WHEN...Monday 2:30 PM until Thursday 8:00 PM. The highest ozone levels typically occur in the afternoon and early-evening hours. * IMPACTS... Ozone air pollution can cause serious health problems, including trouble breathing, asthma attacks, and lung damage. Everyone can be affected, but sensitive groups such as people with lung disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.

The Extreme Heat Watch has been replaced. Please see the latest information from NWS San Diego CA on this developing situation.

The Extreme Heat Watch has been replaced. Please see the latest information from NWS San Diego CA on this developing situation.