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Wilseyville Warnings, Watches and Advisories

SAFETY and DATA MESSAGE

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. 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 Wilseyville.

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

NWS Active Alerts for CA - Map View

State: CA Total alerts: 15 Updated: Aug 28, 2026 11:18pm PDT

Extreme Heat Warning

Area
San Diego County Mountains
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions continue into Saturday with highs up to 97 degrees. Low temperatures will be in the upper 60s to low 70s. * WHERE...San Diego County Mountains. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Extreme Heat Warning

Area
Orange County Inland
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions continue into Saturday with highs up to 95. Low temperatures will be in the low 70s. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Extreme Heat Warning

Area
Santa Ana Mountains and Foothills
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions will continue into Saturday with highs up to 98 degrees. Low temperatures will be in the low to mid-70s. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Extreme Heat Warning

Area
San Diego County Inland Valleys
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions continue into Saturday with high temperatures up to 98 degrees. Lows will be in the low 70s. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Extreme Heat Warning

Area
San Bernardino and Riverside County Valleys-The Inland Empire
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions continue into Saturday with high temperatures up to 103 degrees. Lows will be in the mid to upper 70s. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Extreme Heat Warning

Area
Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Extreme Heat Warning issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Hot conditions will continue into Saturday with highs up to 111 degrees. Lows will be in the upper 80s to low 90s. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Heat Advisory

Area
Orange County Coastal
Heat Advisory issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...High temperatures up to 89 Saturday. Low temperatures will be in the low 70s. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Heat Advisory

Area
San Diego County Coastal Areas
Heat Advisory issued August 28 at 9:06PM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...High temperatures up to 91 on Saturday. Low temperatures will be in the low 70s. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Temperatures will fall to below normal by Sunday.

Air Quality Alert

Area
Imperial County Southwest; Imperial County West; Imperial Valley
Air Quality Alert issued August 28 at 3:45PM MST by NWS Phoenix AZ

* WHAT...The Imperial County APCD has issued an air quality alert due to harmful levels of particle pollution from windblown dust. Visit https://www.aqmd.gov/alertinfo to check current and forecasted air quality levels. * WHERE...Western Imperial County. Levels of particle pollution can vary by time and location depending on emissions and local weather conditions. * WHEN...tonight through Saturday, Aug 29 2026. * IMPACTS... Particle pollution can get deep into the lungs and cause serious health problems such as asthma attacks, heart and lung disease symptoms, and increased risk of lung infections. Everyone can be affected, but sensitive groups such as people with lung or heart disease, older adults, people who are pregnant, children, and those who spend a lot of time outdoors are at greater risk.

Extreme Heat Warning

Area
Parker Valley; Kofa; Yuma; Central La Paz; Southeast Yuma County; Gila River Valley; Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley; Palo Verde Valley; Chuckwalla Valley
Extreme Heat Warning issued August 28 at 1:56PM MST until August 29 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 116. Major Heat Risk. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.

Wind Advisory

Area
Santa Ynez Mountains Western Range
Wind Advisory issued August 28 at 11:16AM PDT until August 29 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures of 95 to 105 common. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Santa Ynez Mountains Western Range. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Wind Advisory, from 6 PM this evening to 6 AM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory

Area
Santa Barbara County Southwestern Coast
Wind Advisory issued August 28 at 11:16AM PDT until August 29 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...For the Wind Advisory, northerly winds 20 to 30 mph with gusts up to 45 mph. For the Heat, Hot conditions with high temperatures of 92 to 102 common, hottest Friday. * WHERE...Santa Barbara County Southwestern Coast. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Wind Advisory, from 6 PM this evening to 6 AM PDT Saturday. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Heat Advisory

Area
Santa Clarita Valley; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Southeastern Ventura County Valleys; Santa Susana Mountains; Los Angeles County San Gabriel Valley
Heat Advisory issued August 28 at 11:16AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime conditions with high temperatures between 98 and 108 common, hottest Friday. Warm overnight conditions will bring less relief than usual. * WHERE...Most valleys of Los Angeles and Ventura Counties. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory

Area
Santa Barbara County Southeastern Coast; Ventura County Beaches; Ventura County Inland Coast; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles
Heat Advisory issued August 28 at 11:16AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime conditions with high temperatures between 88 and 98 common, hottest Friday. Warm overnight conditions will bring less relief than usual. * WHERE...Most coastal areas of Los Angeles, Ventura, and southern Santa Barbara Counties. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors.

Heat Advisory

Area
Santa Barbara County Southwestern Coast
Heat Advisory issued August 28 at 11:16AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...For the Wind Advisory, northerly winds 20 to 30 mph with gusts up to 45 mph. For the Heat, Hot conditions with high temperatures of 92 to 102 common, hottest Friday. * WHERE...Santa Barbara County Southwestern Coast. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Wind Advisory, from 6 PM this evening to 6 AM PDT Saturday. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Saturday. * IMPACTS...There is a high risk for dangerous heat illness, especially for sensitive groups like the very young, the very old, those without air conditioning, and those active outdoors. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.

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