Yorkville, CA Warnings, Watches and Advisories

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 Yorkville.

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

Fire Weather Watch issued August 29 at 1:33PM PDT until August 31 at 8:00PM PDT by NWS Medford OR

The National Weather Service in Medford has issued a Fire Weather Watch, which is in effect from Monday afternoon through Monday evening. * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In California...The Scott Valley in Fire weather zone 280, Fire weather zone 281, Fire weather zone 284 excepting the southeast portion of the zone, and Fire weather zone 285. In Oregon...Fire weather zone 624, excepting the Highway 97 corridor from Modoc Point to Chemult. * WIND...South winds 10 to 20 mph with gusts to 30 mph in the Scott Valley, and 15 to 25 mph with gusts to 35 mph in the Shasta Valley. Elsewhere, southwest winds 10 to 20 mph with gusts to 30 mph. * HUMIDITY...Minimum humidity 9 to 15 percent. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr

Heat Advisory issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Temperatures 85 to 91. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Extreme Heat Warning issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures 96 to 103. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures 92 to 98. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued August 29 at 11:40AM 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. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Temperatures 82 to 88. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Extreme Heat Warning issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures 105 to 112. * 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.

Extreme Heat Warning issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures 92 to 96. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued August 29 at 11:40AM PDT until August 29 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with temperatures 85 to 95. * WHERE...San Diego County Mountains. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued August 29 at 9:29AM MST until August 29 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions. Afternoon temperatures 107 to 115. Major Heat Risk. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * 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.

Heat Advisory issued August 29 at 7:49AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Hot daytime conditions with high temperatures between 85 and 103 common. Warm overnight conditions will bring less relief than usual. * WHERE...Most valleys of Los Angeles and Ventura Counties. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

Heat Advisory issued August 29 at 7:49AM PDT until August 29 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...For the Heat Advisory, temperatures of 80 to 90 degrees. For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Santa Barbara County Southwestern Coast. * WHEN...For the Heat Advisory, until 8 PM PDT this evening. For the Wind Advisory, from 6 PM this evening to 6 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hot temperatures may cause heat illnesses.

Wind Advisory issued August 29 at 7:49AM PDT until August 30 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...North winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Santa Ynez Mountains Western Range. * WHEN...From 6 PM this evening to 6 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued August 29 at 7:49AM PDT until August 30 at 6:00AM PDT by NWS Los Angeles/Oxnard CA

* WHAT...For the Heat Advisory, temperatures of 80 to 90 degrees. For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Santa Barbara County Southwestern Coast. * WHEN...For the Heat Advisory, until 8 PM PDT this evening. For the Wind Advisory, from 6 PM this evening to 6 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Hot temperatures may cause heat illnesses.

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.