West Sacramento Warnings, Watches and Advisories

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 West Sacramento.

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

Excessive Heat Warning issued July 3 at 2:50AM PDT until July 9 at 11:00PM PDT by NWS Sacramento CA

* WHAT...Dangerously hot conditions with high temperatures from 105 to 118. Limited overnight relief with low temperatures in the upper 60s to mid 80s. Widespread Major to Extreme HeatRisk is expected. * WHERE...Carquinez Strait and Delta, Central Sacramento Valley, Motherlode, Mountains Southwestern Shasta County to Western Colusa County, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Northern San Joaquin Valley, Shasta Lake Area / Northern Shasta County, and Southern Sacramento Valley. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Area waterways will continue to run cold and fast, creating dangerous conditions for those seeking relief in rivers and lakes. Delta breeze influence will result in slightly cooler, but still hot temperatures in the Vicinity Delta and western portions of the Sacramento Area by late weekend into early next week.

Heat Advisory issued July 3 at 2:50AM PDT until July 9 at 11:00PM PDT by NWS Sacramento CA

* WHAT...Hot conditions with high temperatures up to 95-110. Limited overnight relief with low temperatures in the upper 50s to upper 70s. Areas of Major and Extreme HeatRisk is expected. * WHERE...Burney Basin / Eastern Shasta County, West Slope Northern Sierra Nevada, and Western Plumas County/Lassen Park. * WHEN...From 11 AM this morning to 11 PM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events, particularly for those working or participating in outdoor activities. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Area waterways will continue to run cold and fast, creating dangerous conditions for those seeking relief in rivers and lakes.

Heat Advisory issued July 3 at 2:39AM PDT until July 8 at 9:00PM PDT by NWS Medford OR

* WHAT...Temperatures of 95 to 100 degrees expected. * WHERE...In California, Modoc County and northeast Siskiyou County. This includes the cities of Macdoel and Alturas. In Oregon, Lake County and eastern Klamath County. This includes the cities of Klamath Falls, Chemult, Summer Lake, and Lakeview * WHEN...From 8 AM Thursday to 9 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. Area rivers will be cold and can cause shock to swimmers.

Excessive Heat Warning issued July 3 at 2:39AM PDT until July 8 at 9:00PM PDT by NWS Medford OR

* WHAT...Dangerously hot conditions with temperatures of 110 to 115 expected. * WHERE...In California, western and central Siskiyou County. This includes the cities of Yreka, Weed, Etna, and Happy Camp. In Oregon, Josephine and Jackson counties and eastern Curry County. This includes the entire Rogue Valley and the cities of Medford, Grants Pass, Cave Junction, and Butte Falls. * WHEN...From 8 AM Thursday to 9 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Area rivers will be cold and can cause shock to swimmers.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 6 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures of 100 to 112 expected. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...From 11 AM Friday to 9 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued July 3 at 2:34AM PDT until July 6 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures of 98 to 104 expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...From 11 AM Friday to 9 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses.

Heat Advisory issued July 3 at 2:34AM PDT until July 6 at 9:00PM PDT by NWS San Diego CA

* WHAT...Temperatures of 88 to 96 expected. * WHERE...Orange County Inland Areas. * WHEN...From 11 AM Friday to 9 PM PDT Saturday. * IMPACTS...Hot temperatures may cause heat illnesses.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 6 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 109 for the far inland valleys expected. * WHERE...San Diego County Valleys. * WHEN...From 11 AM Friday to 9 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 6 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 104 at lower elevations expected. * WHERE...Riverside County Mountains, San Bernardino County Mountains, and San Diego County Mountains. * WHEN...From 11 AM Friday to 9 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 10 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 123 expected. * WHERE...Coachella Valley and San Diego County Deserts. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 10 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures of 113 to 119 expected. * WHERE...San Gorgonio Pass Near Banning. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 2:34AM PDT until July 10 at 9:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures up to 112 expected. * WHERE...Apple and Lucerne Valleys. * WHEN...Until 9 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Red Flag Warning issued July 3 at 2:30AM PDT until July 3 at 8:00PM PDT by NWS Sacramento CA

* Winds...Northerly wind 10 to 20 mph with gusts up to 30 mph. Strongest wind expected this morning and along the western half of the Sacramento Valley into the eastern Coast Range. * Humidity...Minimum daytime relative humidity of 5 to 15 percent expected. Nighttime humidity recoveries will also be very poor in the 15 to 35 percent range. * Highest Threat...Sacramento Valley, generally west of Interstate 5 and elevations below 3000 feet. * Impacts...The combination of gusty wind and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended. *

Excessive Heat Warning issued July 3 at 1:54AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 112 to 120. Major to Extreme Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * WHERE...Southwest corner of Imperial County, Western Imperial County, Parker Valley, Imperial Valley, Palo Verde Valley, and Chuckwalla Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 1:54AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 108 to 116 expected. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Southeastern Imperial County, Salton Sea, and Chuckwalla Mountains. * WHEN...From 10 AM Thursday to 8 PM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 1:54AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 101 to 116 expected. Major to Extreme Heat Risk. Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death. * WHERE...Western portion of Joshua Tree National Park, Eastern portion of Joshua Tree National Park, and Chiriaco Summit. * WHEN...From 10 AM Thursday to 8 PM PDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 3 at 12:46AM PDT until July 8 at 11:00PM PDT by NWS Las Vegas NV

* WHAT...Dangerously hot conditions for an unusually long period. High temperatures 105 to 111 in the Owens Valley, 110 to 118 in Las Vegas, Pahrump, and Barstow, and 122 to 129 at Furnace Creek in Death Valley National Park. * WHERE...In California, Death Valley National Park, Owens Valley, and Western Mojave Desert. In Nevada, Las Vegas Valley and Western Clark and Southern Nye County. * WHEN...From 11 AM this morning to 11 PM PDT Monday. * 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 Las Vegas and Death Valley, where low temperatures may not fall below 90 degrees for several days.

Excessive Heat Warning issued July 3 at 12:46AM PDT until July 8 at 11:00PM PDT by NWS Las Vegas NV

* WHAT...Dangerously hot conditions for an unusually long period. High temperatures 107 to 111 in Beatty and Kingman, 110 to 117 in Primm and the Morongo Basin, and 113 to 121 in Baker, Mesquite, and the Colorado River Valley. * WHERE...Portions of northwest Arizona, southeast California, and south central and southern Nevada. * WHEN...From 11 AM PDT /11 AM MST/ Thursday to 11 PM PDT /11 PM MST/ Monday. * 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 for several days.

Beach Hazards Statement issued July 2 at 9:53PM PDT until July 7 at 5:00PM PDT by NWS San Diego CA

* WHAT...Surf of 3 to 5 feet, strong longshore currents, and dangerous rip currents. Sets to 7 feet for south and southwest facing beaches, particularly in Orange County. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...From Thursday morning through Sunday afternoon. * IMPACTS...Increased risk of rip currents and dangerous swimming conditions. * ADDITIONAL DETAILS...Surf subsides late Sunday and Monday.

Excessive Heat Warning issued July 2 at 8:52PM PDT until July 10 at 8:00AM PDT by NWS Hanford CA

* WHAT...Dangerously hot conditions with a 75% Probability of high temperatures 111F or hotter and a 75% probability of minimum temperatures 76F or warmer. * WHERE...Indian Wells Valley and Mojave Desert. * WHEN...Until 8 AM PDT Wednesday, July 10. * IMPACTS...This level of rare, long-duration extreme heat with little to no overnight relief affects everyone, especially those without effective cooling and/or adequate hydration. * ADDITIONAL DETAILS...Impacts likely in most health systems, heat-sensitive industries and infrastructure.

Excessive Heat Warning issued July 2 at 8:52PM PDT until July 10 at 8:00AM PDT by NWS Hanford CA

* WHAT...Dangerously hot conditions with a 50 to 90% Probability of high temperatures 107F or hotter. There is a 50% Probability of minimum temperatures of 73F or warmer. HeatRisk will be Major or Level 3 of 4 initially, then become Extreme, Level 4 of 4 on the 4th of July into the weekend. * WHERE...A portion of central California. * WHEN...Until 8 AM PDT Wednesday, July 10. * IMPACTS...This level of rare, long-duration extreme heat with little to no overnight relief affects everyone, especially those without effective cooling and/or adequate hydration. * ADDITIONAL DETAILS...Impacts likely in most health systems, heat-sensitive industries and infrastructure.

Coastal Flood Advisory issued July 2 at 8:51PM PDT until July 3 at 11:00PM PDT by NWS San Francisco CA

* WHAT...Minor coastal flooding. * WHERE...San Francisco and San Francisco Bay Shoreline Counties. * WHEN...Until 11 PM PDT Wednesday. * 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 tide in San Francisco is at 10:00 PM Wednesday, July 3rd, at 6.77 ft.

Heat Advisory issued July 2 at 7:11PM PDT until July 4 at 7:00PM PDT by NWS San Francisco CA

* WHAT...Temperatures in the mid to upper 80s expected. Temperatures near 90 for southeast portions of the city. * WHERE...San Francisco. * WHEN...Until 7 PM PDT Thursday. * IMPACTS...Those sensitive to heat, such as the homeless, elderly, children, and pets will be at risk for heat-related illnesses. Those without effective cooling and/or adequate hydration will be at the greatest risk.

Excessive Heat Warning issued July 2 at 7:11PM PDT until July 9 at 11:00PM PDT by NWS San Francisco CA

* WHAT...Dangerously hot conditions with temperatures in the upper 90's to 115F expected. Limited overnight relief with low temperatures in the mid 60s to low 80s. Resultant widespread Major HeatRisk, with areas of Extreme HeatRisk. * WHERE...Marin Coastal Range, Sonoma Coastal Range, North Bay Interior Mountains, North Bay Interior Valleys, East Bay Interior Valleys, Santa Cruz Mountains, Santa Clara Valley, Eastern Santa Clara Hills, East Bay Hills, Southern Salinas Valley, Santa Lucia Mountains and Los Padres National Forest, and Mountains of San Benito and Interior Monterey. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Most individuals will be at risk for heat-related illnesses without effective cooling or adequate hydration, especially with prolonged outdoor exposure. Without effective cooling and/or adequate hydration, heat-related illnesses including heat stroke will be a risk to everyone. Overnight lows will warm as well leading to poor relief from the heat specifically in elevated terrain and interior areas. * ADDITIONAL DETAILS...An exceptionally dangerous situation is expected to unfold over the next week as we enter a potentially historic and deadly heat event. Several days of temperatures well above normal will lead to compounding effects among people and infrastructure, with the possibility of numerous heat related fatalities. It cannot be stressed enough that while one day at these temperatures may be manageable for some, an event of this scale, magnitude, and longevity will likely rival anything we've seen in the last 18 years. Heat is the number one weather related killer in the United States. By this weekend, it is VERY LIKELY that we add to that statistic if preparations are not taken seriously.

Heat Advisory issued July 2 at 7:11PM PDT until July 9 at 11:00PM PDT by NWS San Francisco CA

* WHAT...Temperatures in the lower 80s to mid 90s. * WHERE...San Francisco Bay Shoreline, Northern Monterey Bay, and Northern Salinas Valley, Hollister Valley, and Carmel Valley. * WHEN...Until 11 PM PDT Tuesday. * IMPACTS...Those sensitive to heat, such as the homeless, elderly, children, and pets will be at risk for heat-related illnesses. Those without effective cooling and/or adequate hydration will be at the greatest risk. * ADDITIONAL DETAILS...An exceptionally dangerous situation is expected to unfold over the next week as we enter a potentially historic and deadly heat event for inland areas. Several days of temperatures well above normal will lead to compounding effects among people and infrastructure, with the possibility of numerous heat related fatalities. It cannot be stressed enough that while one day at these temperatures may be manageable for some, an event of this scale, magnitude, and longevity will likely rival anything we've seen in the last 18 years. Heat is the number one weather related killer in the United States. By this weekend, it is VERY LIKELY that we add to that statistic if preparations are not taken seriously.

Red Flag Warning issued July 2 at 6:31PM PDT until July 5 at 5:00AM PDT by NWS San Francisco CA

...CRITICAL FIRE WEATHER CONDITIONS NOW INTO FRIDAY... .Red Flag Warnings currently in effect for high elevations of the North Bay, East Bay Hills, and the Santa Cruz Mtns have been extended to 5 AM Friday. This decision was made due to a combination of continued low RH in the teens, very dry fuels, and the 4th of July holiday. Also, gusts of 30 to 40 mph will be possible across ridgetops and higher peaks. Fuels are quickly curing and will see no relief through this weekend. In fact, 10 and 100 hour fuels are near historic levels in the North Bay in regard to the energy release component going into the weekend. The same fuels in the Diablo Range and Santa Cruz Mtns aren't far behind. Further south, things start to dry out more this weekend. A Fire Weather Watch is in effect for the Santa Lucia Range, Interior Monterey and San Benito county, and the Southern Salinas Valley from Friday morning to Sunday night. * AFFECTED AREA...Fire Weather Zone 502 Marin Coastal Range, Fire Weather Zone 503 Sonoma Coastal Range, Fire Weather Zone 504 North Bay Interior Mountains, Fire Weather Zone 512 Santa Cruz Mountains and Fire Weather Zone 515 East Bay Hills. * TIMING...Until 5 AM Friday. * WINDS...West to northeast 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * TEMPERATURES...Up to 106. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended.

Fire Weather Watch issued July 2 at 6:31PM PDT until July 8 at 12:00AM PDT by NWS San Francisco CA

...CRITICAL FIRE WEATHER CONDITIONS NOW INTO FRIDAY... .Red Flag Warnings currently in effect for high elevations of the North Bay, East Bay Hills, and the Santa Cruz Mtns have been extended to 5 AM Friday. This decision was made due to a combination of continued low RH in the teens, very dry fuels, and the 4th of July holiday. Also, gusts of 30 to 40 mph will be possible across ridgetops and higher peaks. Fuels are quickly curing and will see no relief through this weekend. In fact, 10 and 100 hour fuels are near historic levels in the North Bay in regard to the energy release component going into the weekend. The same fuels in the Diablo Range and Santa Cruz Mtns aren't far behind. Further south, things start to dry out more this weekend. A Fire Weather Watch is in effect for the Santa Lucia Range, Interior Monterey and San Benito county, and the Southern Salinas Valley from Friday morning to Sunday night. * AFFECTED AREA...Fire Weather Zone 516 Southern Salinas Valley/Arroyo Seco and Lake San Antonio, Fire Weather Zone 517 Santa Lucia Mountains and Los Padres National Forest and Fire Weather Zone 518 Mountains of San Benito County And Interior Monterey County including Pinnacles National Park. * TIMING...From 9 AM Friday to midnight Sunday night. * WINDS...Northwest 10 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 7 percent. * TEMPERATURES...Up to 112. * IMPACTS...Critical fire weather conditions. Increased chance for fire starts in dry, open grasses. Outdoor burning and especially fireworks are not recommended.

Air Quality Alert issued July 2 at 5:40PM PDT by NWS San Diego CA

The South Coast AQMD has issued an air quality alert in inland parts of the South Coast Air Basin and the Coachella Valley due to high levels of ozone (smog). The air quality alert is in effect 11 AM Wednesday through 7 PM Saturday. 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. In the South Coast Air Basin and Coachella Valley, to view current and forecasted air quality levels, visit the South Coast Air Quality Management District website at aqmd.gov or download the mobile app at www.aqmd.gov/mobileapp. Additional details for this air quality alert may be available at www.aqmd.gov/advisory. In the Mojave Desert, to view current and forecasted air quality levels, visit the Mojave Desert Air Quality Management District website at mdaqmd.ca.gov. Additional details for this air quality alert may be available at www.mdaqmd.ca.gov/advisories. In Antelope Valley, to view current and forecasted air quality levels, visit the antelope Valley Air Quality Management District website at www.avaqmd.ca.gov. in San Diego County, to view current and forecasted air quality levels, visit the San Diego County Air Pollution Control District website at www.sdapcd.org/content/sdapcd/air-quality.html. Additional details for this air quality alert may be available at www.sdapcd.org/content/sdapcd/air-quality/smoke-advisory.html For the latest air quality forecasts and information, visit the website at aqmd.gov.

Air Quality Alert issued July 2 at 5:19PM PDT by NWS Los Angeles/Oxnard CA

The South Coast Air Quality Management District has issued an Air Quality Alert due to elevated ozone air pollution. This Air Quality Alert is in effect from 11 AM Wednesday to 7 PM PDT Saturday. 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 the 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 forecasted air quality levels, visit the South Coast Air Quality Management District website at aqmd.gov or download the mobile app at www.aqmd.gov/mobileapp. Additional details for this air quality alert may be available at www.aqmd.gov/advisory. For the additional information, call the South Coast Air Quality Management District.

Fire Weather Watch issued July 2 at 2:34PM PDT until July 6 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

...CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE THURSDAY EVENING THROUGH FRIDAY NIGHT ACROSS THE INTERSTATE 5 CORRIDOR AND SOUTHERN SANTA BARBARA COUNTY... .A long-duration heat waves will bring very hot and dry conditions to Southwestern California through the weekend. The hot and dry conditions will coincide with northwesterly winds, gusting 25 to 40 mph, Thursday evening through Friday night across the Interstate 5 Corridor as well as southern Santa Barbara county. This combination will bring the potential for widespread critical fire weather conditions to these areas Thursday evening through Friday night. The National Weather Service in Los Angeles/Oxnard has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Thursday evening through late Friday night. * WINDS...Northwest to north winds gusting 25 to 40 mph. * RELATIVE HUMIDITY...Minimum relative humidity 8-20 percent with poor to moderate overnight recovery. * IMPACTS...Conditions will be favorable for rapid rates of fire growth and spread.

Fire Weather Watch issued July 2 at 2:34PM PDT until July 6 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

...CRITICAL FIRE WEATHER CONDITIONS ARE POSSIBLE THURSDAY EVENING THROUGH FRIDAY NIGHT ACROSS THE INTERSTATE 5 CORRIDOR AND SOUTHERN SANTA BARBARA COUNTY... .A long-duration heat waves will bring very hot and dry conditions to Southwestern California through the weekend. The hot and dry conditions will coincide with northwesterly winds, gusting 25 to 40 mph, Thursday evening through Friday night across the Interstate 5 Corridor as well as southern Santa Barbara county. This combination will bring the potential for widespread critical fire weather conditions to these areas Thursday evening through Friday night. The National Weather Service in Los Angeles/Oxnard has issued a Fire Weather Watch for wind and low relative humidity, which is in effect from Thursday evening through late Friday night. * WINDS...Northwest winds gusting 25 to 40 mph. * RELATIVE HUMIDITY...Minimum relative humidity 8-15 percent with poor overnight recovery. * IMPACTS...Conditions will be favorable for rapid rates of fire growth and spread.

Excessive Heat Warning issued July 2 at 1:36PM PDT until July 6 at 6:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 100 expected, warmest in the foothills. Hottest Friday and Saturday. * WHERE...Santa Barbara County Southeastern Coast and Santa Barbara County Southwestern Coast. * WHEN...From 11 AM Thursday to 6 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued July 2 at 1:36PM PDT until July 7 at 6:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 85 to 95 possible. * WHERE...Los Angeles County Inland Coast including Downtown Los Angeles, San Luis Obispo County Inland Central Coast, Santa Barbara County Inland Central Coast, and Ventura County Inland Coast. * WHEN...From 11 AM Thursday to 6 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

Heat Advisory issued July 2 at 1:36PM PDT until July 7 at 6:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 95 to 105 possible. * WHERE...Los Angeles County San Gabriel Valley. * WHEN...From 11 AM Wednesday to 6 PM PDT Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

Excessive Heat Warning issued July 2 at 1:36PM PDT until July 8 at 6:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 100 to 110 expected, and upwards of 105 to 115 expected over interior valleys and foothills including the Antelope Valley. * WHERE...A portion of southwest California. * WHEN...Until 6 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Excessive Heat Warning issued July 2 at 1:36PM PDT until July 8 at 6:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 95 to 105 possible, and upwards of 105 to 110 possible in the valleys well away from the coast. * WHERE...A portion of southwest California. * WHEN...From 11 AM Wednesday to 6 PM PDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Beach Hazards Statement issued July 2 at 12:35PM PDT until July 7 at 10:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerous rip currents and breaking waves due to elevated surf expected. Surf heights around 5 feet in southerly swell with 15 to 17 second wave periods. * WHERE...Ventura County Beaches, Malibu Coast, and Los Angeles County Beaches. * WHEN...From Thursday morning through Sunday evening. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats nearshore.

Red Flag Warning issued July 2 at 10:46AM PDT until July 3 at 8:00PM PDT by NWS Eureka CA

* AFFECTED AREA...Fire weather zone 264 including Southeast Lake County. * WIND...Northeast wind of 12 to 18 mph, gusting up to 30 mph. Wind will be restricted to high ridges overnight but mix down to lower elevations early each afternoon. * HUMIDITY...Poor overnight RH recovery of 30 to 40 percent followed by very dry daytime RH below 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

Heat Advisory issued July 2 at 2:48AM PDT until July 3 at 11:00AM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 110 and limited overnight relief with lows near 65. * WHERE...Northern Mendocino Interior. * WHEN...For the Heat Advisory, from 11 AM this morning to 11 AM PDT Wednesday. For the Excessive Heat Warning, from 11 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Heat Advisory issued July 2 at 2:48AM PDT until July 3 at 11:00AM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 115 and limited overnight relief with lows near 65. * WHERE...Trinity County. * WHEN...For the Heat Advisory, from 11 AM this morning to 11 AM PDT Wednesday. For the Excessive Heat Warning, from 11 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Heat Advisory issued July 2 at 2:48AM PDT until July 3 at 8:00PM PDT by NWS Eureka CA

* WHAT...Moderate to localized Major HeatRisk with highs up to 110 and limited overnight relief with lows near 60. * WHERE...Southern Humboldt. * WHEN...From 11 AM to 8 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Heat Advisory issued July 2 at 2:48AM PDT until July 3 at 8:00PM PDT by NWS Eureka CA

* WHAT...Moderate to localized Major HeatRisk with highs up to 105 and limited overnight relief with lows near 60. * WHERE...Southwestern Mendocino Interior. * WHEN...From 11 AM this morning to 8 PM PDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Excessive Heat Warning issued July 2 at 2:48AM PDT until July 6 at 8:00PM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 115 and limited overnight relief with lows near 70. * WHERE...Lake County, and Southeastern Mendocino Interior. * WHEN...From 11 AM this morning to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Excessive Heat Warning issued July 2 at 2:48AM PDT until July 6 at 8:00PM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 110 and limited overnight relief with lows near 65. * WHERE...Northern Mendocino Interior. * WHEN...For the Heat Advisory, from 11 AM this morning to 11 AM PDT Wednesday. For the Excessive Heat Warning, from 11 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Excessive Heat Warning issued July 2 at 2:48AM PDT until July 6 at 8:00PM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 115 and limited overnight relief with lows near 65. * WHERE...Trinity County. * WHEN...For the Heat Advisory, from 11 AM this morning to 11 AM PDT Wednesday. For the Excessive Heat Warning, from 11 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Excessive Heat Warning issued July 2 at 2:48AM PDT until July 6 at 8:00PM PDT by NWS Eureka CA

* WHAT...Major to localized extreme HeatRisk with highs up to 112 and limited overnight relief with lows near 65. * WHERE...Northern Humboldt Interior. * WHEN...From 11 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.

Heat Advisory issued July 2 at 2:48AM PDT until July 6 at 8:00PM PDT by NWS Eureka CA

* WHAT...Moderate to localized Major HeatRisk with highs up to 105 and limited overnight relief with lows near 60. * WHERE...Del Norte Interior. * WHEN...From 11 AM Thursday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat. This level of heat will affect anyone without effective cooling or adequate hydration. * ADDITIONAL DETAILS...Heat could significantly impact outdoor holiday activities. Hot weather will begin on Tuesday with near record breaking temperatures through the week.