El Sobrante Warnings, Watches and Advisories

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SAFETY and DATA MESSAGE

Do not drive vehicles through flooded areas. The water depth and road condition may be unsafe. Additional information is available at https://water.weather.gov/ahps2/ Stay tuned for further updates by listening to NOAA weather radio... or your local radio and TV stations.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We provide a wider range of issued 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 El Sobrante.

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

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 8:02PM MST until July 21 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 115 with heat indices of 110 to 118. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...Until 8 PM MST /8 PM PDT/ Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

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Area
Parker Valley; Yuma; Joshua Tree NP West; Joshua Tree NP East; Imperial County Southwest; Salton Sea; Chuckwalla Mountains; Imperial County Southeast; Imperial County West; Imperial Valley; Chiriaco Summit; Palo Verde Valley; Chuckwalla Valley

Heat Advisory

Heat Advisory issued July 20 at 4:26PM PDT until July 21 at 10:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...High temperatures of up to 103. * WHERE...Eastern Santa Monica Mountains Recreational Area, Santa Lucia Mountains, Santa Susana Mountains, Southern Salinas Valley, and Western Santa Monica Mountains Recreational Area. * WHEN...Until 10 PM PDT Sunday. * 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.

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Area
Santa Lucia Mountains; Southern Salinas Valley; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Santa Susana Mountains

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 4:26PM PDT until July 24 at 10:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures of 100 to 110. * WHERE...A portion of southwest California. * WHEN...Until 10 PM PDT Wednesday. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors.

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Area
Cuyama Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Southern Ventura County Mountains; Northern Ventura County Mountains; Interstate 5 Corridor; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Western Antelope Valley Foothills; Eastern Antelope Valley Foothills; Antelope Valley

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 2:59PM PDT until July 24 at 11:00PM PDT by NWS San Francisco CA

* WHAT...Dangerously hot conditions with daytime temperatures reaching the upper 90s to lower 100s. Far inland temperatures may reach 108 degrees. Overnight temperatures will be warm and in the 60s and 70s. * WHERE...East Bay Interior Valleys, Eastern Santa Clara Hills, East Bay Hills, Santa Lucia Mountains and Los Padres National Forest and Mountains of San Benito and Interior Monterey County including Pinnacles National Park. * WHEN...From 11 AM Monday to 11 PM PDT Wednesday. * IMPACTS...Extreme heat will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...The hottest day will be Tuesday.

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Area
East Bay Interior Valleys; Eastern Santa Clara Hills; East Bay Hills; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park

Heat Advisory

Heat Advisory issued July 20 at 2:59PM PDT until July 24 at 11:00PM PDT by NWS San Francisco CA

* WHAT...Daytime temperatures reaching the 90s to near 100. Overnight temperatures will be mild and in the upper 50s to near 70. * WHERE...Interior portions of the North Bay, South Bay, Santa Cruz Mountains and Southern Salinas Valley. * WHEN...From 11 AM Monday to 11 PM PDT Wednesday. * IMPACTS...Moderate HeatRisk across inland areas. This level of heat affects individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. * ADDITIONAL DETAILS...The hottest day will be Tuesday.

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Area
Sonoma Coastal Range; North Bay Interior Mountains; North Bay Interior Valleys; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Heat Advisory

Heat Advisory issued July 20 at 2:03PM PDT until July 21 at 11:00PM PDT by NWS Medford OR

* WHAT...High temperatures of up 100 to 108 degrees expected Saturday afternoon, and highs of 95 to 100 expected on Sunday. Despite somewhat cooler overnight lows, smoke from area wildfires will prevent relief from the heat overnight. * WHERE...Klamath, Modoc, Lake, and central and eastern Siskiyou counties, including Klamath Falls, Weed, Yreka, Mount Shasta City, Lakeview, Alturas, Chiloquin, Chemult, Fort Rock, and the Christmas Valley. * WHEN...Until 11 PM PDT Sunday. * IMPACTS...Hot temperatures combined with smoke may cause heat illnesses to occur.

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Area
Central Siskiyou County; South Central Siskiyou County; North Central and Southeast Siskiyou County; Northeast Siskiyou and Northwest Modoc Counties; Modoc County; Klamath Basin; Northern and Eastern Klamath County and Western Lake County; Central and Eastern Lake County

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 1:52PM PDT until July 24 at 11:00PM PDT by NWS Hanford CA

* WHAT...Dangerously hot conditions with high temperatures up to 111 expected. Major to Extreme HeatRisk through the event. * WHERE...A portion of central California. * WHEN...From 11 AM Monday to 11 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

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Area
West Side Mountains north of 198; Los Banos - Dos Palos; Merced - Madera - Mendota; Planada - Le Grand - Snelling; Coalinga - Avenal; West Side of Fresno and Kings Counties; Caruthers - San Joaquin - Selma; Fresno-Clovis; West Side Mountains South of 198; Buttonwillow - Lost Hills - I5; Delano-Wasco-Shafter; Hanford - Corcoran - Lemoore; Visalia - Porterville - Reedley; Buena Vista; Bakersfield; Southeast San Joaquin Valley; South End San Joaquin Valley; Mariposa Madera Foothills; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; South End Sierra Foothills; Yosemite Valley; San Joaquin River Canyon; Kern River Valley

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 1:52PM PDT until July 24 at 11:00PM PDT by NWS Hanford CA

* WHAT...Dangerously hot conditions with high temperatures up to 114 expected. Major to Extreme HeatRisk through the event. * WHERE...Indian Wells Valley, Mojave Desert, and Mojave Desert Slopes. * WHEN...From 11 AM Sunday to 11 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

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Area
Indian Wells Valley; Mojave Desert Slopes; Mojave Desert

Heat Advisory

Heat Advisory issued July 20 at 1:51PM PDT until July 23 at 10:00PM PDT by NWS Eureka CA

* WHAT...Temperatures up to 107 expected. * WHERE...Southern Lake. * WHEN...From 11 AM Monday to 10 PM PDT Tuesday. * IMPACTS...Hot temperatures may cause heat illnesses.

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Area
Southern Lake County

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 107. Lows tonight 72 to 80. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Read Full Alert
Area
Apple and Lucerne Valleys

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 114. Lows tonight 79 to 91. * WHERE...San Gorgonio Pass Near Banning. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

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Area
San Gorgonio Pass Near Banning

Heat Advisory

Heat Advisory issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures up to 101 at elevations below 4,000 feet. Lows tonight up to 81 on desert slopes. * WHERE...San Diego County Mountains. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

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Area
San Diego County Mountains

Heat Advisory

Heat Advisory issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures up to 100 to 102 in the eastern valleys. Lows tonight 65 to 75. * WHERE...San Diego County Valleys. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

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Area
San Diego County Inland Valleys

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 117. Lows tonight 81 to 93. * WHERE...Coachella Valley and San Diego County Deserts. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Read Full Alert
Area
Coachella Valley; San Diego County Deserts

Heat Advisory

Heat Advisory issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures up to 106. Lows tonight 65 to 75. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

Read Full Alert
Area
San Bernardino and Riverside County Valleys-The Inland Empire

Heat Advisory

Heat Advisory issued July 20 at 1:32PM PDT until July 21 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures up to 101 at elevations below 4,000 feet. Lows tonight up to 81 on desert slopes. * WHERE...Riverside County Mountains and San Bernardino County Mountains. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

Read Full Alert
Area
San Bernardino County Mountains; Riverside County Mountains

Coastal Flood Advisory

Coastal Flood Advisory issued July 20 at 1:32PM PDT until July 23 at 2:00AM PDT by NWS San Francisco CA

* WHAT...Minor coastal flooding. * WHERE...Bayshore along the San Francisco Bay and San Pablo Bay. * WHEN...Until 2 AM PDT Tuesday. * IMPACTS...Flooding of lots, parks, and roads with only isolated road closures expected. * ADDITIONAL DETAILS...Tidal levels are increasing as a result of higher astronomical tides. Low lying areas within the SF Bay Area may see minor flooding as a result during high tide. Next high tides in San Francisco are Saturday 11:11 PM at 6.75 ft, Sunday 11:59 PM at 6.76 ft and early Tuesday morning 12:48 AM at 6.60 ft.

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Area
San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline

Heat Advisory

Heat Advisory issued July 20 at 12:41PM PDT until July 24 at 11:00PM PDT by NWS Sacramento CA

* WHAT...Hot conditions, with high temperatures 103 to 110 and warm overnight low temperatures in the upper 60s to lower 80s. * WHERE...Sacramento Valley, Motherlode, Northeast Foothills, and Northern San Joaquin Valley. * WHEN...From 11 AM Monday to 11 PM PDT Wednesday. * IMPACTS...Heat related illnesses will be possible, especially for groups that are sensitive to heat. * ADDITIONAL DETAILS...Widespread Major HeatRisk is expected. This level of heat could impact outdoor activities.

Read Full Alert
Area
Northern Sacramento Valley; Central Sacramento Valley; Southern Sacramento Valley; Northern San Joaquin Valley; Northeast Foothills/Sacramento Valley; Motherlode

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 9:57AM PDT until July 21 at 9:00PM PDT by NWS Las Vegas NV

* WHAT...Dangerously hot conditions expected. Temperatures in the Colorado River Valley and around Lake Mead, Lake Mohave, and Lake Havasu will range from 112 to 118. Central and southern Mohave County including the Kingman area will range from 106 to 112. Cadiz and Morongo Basins will range from 110 to 117. * WHERE...Lake Mead National Recreation Area, Lake Havasu and Fort Mohave, Northwest Deserts, Morongo Basin, Cadiz Basin, and San Bernardino County-Upper Colorado River Valley. * WHEN...Until 9 PM PDT / MST Sunday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Hot temperatures overnight will mean little relief from the daytime heat, especially in lower elevations of the Colorado River Valley, where low temperatures may not fall below 90 degrees.

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Area
Lake Havasu and Fort Mohave; Northwest Deserts; Lake Mead National Recreation Area; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Lake Mead National Recreation Area

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 9:57AM PDT until July 21 at 9:00PM PDT by NWS Las Vegas NV

* WHAT...Dangerously hot conditions. Temperatures in the Las Vegas Valley, Western Mojave Desert, and Pahrump will range from 110 to 115. Death Valley National Park can expect temperatures above 120. * WHERE...In California, Death Valley National Park, Eastern Mojave Desert, and Western Mojave Desert. In Nevada, Las Vegas Valley, Northeast Clark County, Southern Clark County, and Western Clark and Southern Nye County. * WHEN...Until 9 PM PDT Sunday. * IMPACTS...Heat-related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Hot temperatures overnight will mean little relief from the daytime heat, especially in Death Valley and the Las Vegas Valley, where low temperatures may not fall below 90 degrees.

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Area
Death Valley National Park; Western Mojave Desert; Eastern Mojave Desert, Including the Mojave National Preserve; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County

Air Quality Alert

Air Quality Alert issued July 20 at 8:25AM MST by NWS Phoenix AZ

The Imperial County APCD has issued an air quality alert in the Imperial Valley due to high levels of ozone (smog). The air quality alert is in effect Saturday, July 20, 2024 until 8 PM & Sunday, July 21, 2024 from 7 AM until 8 PM. Elevated levels of ozone - the predominant summertime pollutant - are likely to result in poor air quality in the afternoon and early- evening hours. Ozone air pollution can cause respiratory health problems, including trouble breathing, asthma attacks, and lung damage. Children, older adults, and people with asthma or COPD may be more sensitive to the health effects of ozone. Air quality can change depending on time of day and weather conditions. Increased emissions of chemicals and faster ozone formation rates due to heat, along with low winds and stagnant weather can cause unusually high and persistent levels of ozone pollution. To help minimize ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Conserve electricity and set your air conditioner at a higher temperature * Try to delay trips to the gas station and the use of household chemicals until the evening Check air quality levels and take appropriate action as needed. When air quality index (AQI) levels are Unhealthy for Sensitive Groups (orange), people with heart or lung disease, pregnant women, children, and older adults should limit prolonged or heavy outdoor exertion. When air quality reaches Unhealthy (red) AQI levels, everyone may experience adverse health effects and sensitive groups should avoid prolonged time outdoors. At Very Unhealthy (purple) AQI levels, sensitive groups should avoid all outdoor physical activity and everyone else should avoid prolonged or heavy outdoor exertion. To view current and forecast air quality within Imperial County visit the Imperial County Air Quality website at http://www.imperialvalleyair.org/ or follow ICAPCD on Twitter, facebook or Instagram (@county_air).

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Area
Imperial Valley

Beach Hazards Statement

Beach Hazards Statement issued July 20 at 2:07AM PDT until July 22 at 2:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Abnormally high tides between 6.5 and 7.0 feet are expected with elevated surf up to 3 to 6 feet. * WHERE...Catalina and Santa Barbara Islands, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...From this evening through late Sunday night. * IMPACTS...Pooling of sea water is possible around high tide at beach and harbor areas including walkways and bike paths. Enhanced beach erosion is also possible. No significant damage is expected. * ADDITIONAL DETAILS...High tides are expected between 9 and 11 pm each evening.

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Area
Catalina and Santa Barbara Islands; Ventura County Beaches; Malibu Coast; Los Angeles County Beaches
Disclaimer

Currently

Fair 73°F
29.88in
Barometer
51%
Humidity
South 19.6mph
Wind
Fair

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