Etiwanda Warnings, Watches and Advisories

Extreme Heat Watch issued October 5 at 11:38AM MST until October 8 at 8:00PM MST by NWS Phoenix AZ

* WHAT...Dangerously hot conditions possible. Afternoon temperatures 105 to 108. Major Heat Risk. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Portions of Imperial County, including the Imperial Valley. * WHEN...From Wednesday morning through Thursday 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.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...San Diego County Valleys. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures 90s. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to lower 90s at the beaches to the mid 90s to around 100 for the mesas and other higher coastal terrain. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures in the upper 90s to 105. Nights will be very warm with low temperatures in the upper 60s to mid 70s. * WHERE...San Bernardino and Riverside County Valleys-The Inland Empire. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures in the upper 90s to 103. Nights will be very warm with low temperatures in the lower to mid 70s. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Extreme Heat Warning issued October 5 at 11:29AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to lower 90s at the beaches to the mid to upper 90s near higher coastal terrain. Nights will be very warm with low temperatures in the lower to mid 70s. * WHERE...Orange County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued October 5 at 10:15AM PDT until October 9 at 10:00PM PDT by NWS Hanford CA

* WHAT...High temperatures up to 102 degrees expected. Overnight lows between 70 and 75 degrees expected in the Sierra Foothills where the thermal belt is strongest * WHERE...San Joaquin Valley, Sierra Nevada foothills, and Coastal West Hills. * WHEN...Until 10 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Moderate to major risk of heat-related illnesses for much of the population, especially those without effective cooling or hydration.

Heat Advisory issued October 5 at 10:15AM PDT until October 9 at 10:00PM PDT by NWS Hanford CA

* WHAT...High temperatures up to 102 degrees expected. Overnight lows between 70 and 75 degrees expected in the Sierra Foothills where the thermal belt is strongest * WHERE...San Joaquin Valley, Sierra Nevada foothills, and Coastal West Hills. * WHEN...Until 10 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Moderate to major risk of heat-related illnesses for much of the population, especially those without effective cooling or hydration.

Heat Advisory issued October 5 at 9:42AM PDT until October 9 at 10:00PM PDT by NWS Sacramento CA

* WHAT...High temperatures of 94 to 102 degrees expected and overnight low temperatures in the mid 60s to low 70s, with widespread Moderate HeatRisk and areas of Major HeatRisk. * WHERE...The Sacramento and northern San Joaquin Valleys, Delta and Carquinez Strait, and foothills. * WHEN...Until 10 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses, especially to anyone without effective cooling and/or adequate hydration. * ADDITIONAL DETAILS...Hottest days expected Monday through Wednesday.

Heat Advisory issued October 5 at 9:29AM PDT until October 8 at 10:00PM PDT by NWS San Francisco CA

* WHAT...Hot conditions with maximum temperatures in the mid-90s to near 105. Mild minimum temperatures and weak onshore flow will limit overnight relief. * WHERE...The East Bay and San Francisco Bay Shoreline, North Bay Interior Mountains and Valleys, The Santa Clara Valley and Eastern Hills, The Santa Cruz Mountains, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio. * WHEN...Until 10 PM PDT Thursday. * IMPACTS...This level of heat affects anyone without effective cooling and/or adequate hydration. Impacts likely in some health systems, heat-sensitive industries and infrastructure.

Extreme Heat Warning issued October 5 at 2:46AM PDT until October 9 at 8:00PM PDT by NWS Las Vegas NV

* WHAT...Dangerously hot conditions with high temperatures near 110 degrees and overnight lows only getting down to around 85 degrees. This will yield at least major heat risk, impacting anyone without adequate cooling and hydration. * WHERE...Elevations in Death Valley National Park below 2000 feet. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Beach Hazards Statement issued October 5 at 1:21AM PDT until October 9 at 11:00PM PDT by NWS San Diego CA

* WHAT...Minor coastal flooding and dangerous rip currents expected due to the combination of high tides and elevated surf. * WHERE...San Diego and Orange County Coastal Areas. * WHEN...From Tuesday afternoon through Friday evening. * IMPACTS...Minor coastal flooding and minor coastal erosion is possible during high tides, most likely during the evenings. * ADDITIONAL DETAILS...Elevated surf of 3-5 feet on south and southwest-facing beaches. High tides are expected to peak between 6.5 and 7.0 feet during the evenings.

Heat Advisory issued October 4 at 9:04PM PDT until October 7 at 10:00PM PDT by NWS Eureka CA

* WHAT...High temperatures up to 105 with overnight temperatures in the 60s. Moderate to localized High HeatRisk. * WHERE...Southern Mendocino Interior, and Southern Lake. * WHEN...Until 10 PM PDT Wednesday. * IMPACTS...Moderate to localized high HeatRisk will increase the potential for heat illnesses.

Heat Advisory issued October 4 at 9:04PM PDT until October 7 at 10:00PM PDT by NWS Eureka CA

* WHAT...High temperatures up to 105 with overnight temperatures in the 60s. Moderate to localized High HeatRisk. * WHERE...Northern Mendocino Interior, and Northern Lake. * WHEN...Until 10 PM PDT Wednesday. * IMPACTS...Moderate to localized high HeatRisk will increase the potential for heat illnesses.

Beach Hazards Statement issued October 4 at 7:33PM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerous rip currents and breaking waves are expected due to elevated surf of 3 to 6 feet. Abnormally high morning and evening tides of 6.5 to 7 ft are expected. * WHERE...Catalina and Santa Barbara Islands, Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. Most susceptible areas will be Long Beach and Avalon Harbor Tuesday and Wednesday. Then, Malibu to Ventura Wednesday through Friday. * WHEN...From Tuesday afternoon through Thursday 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. Moderate flooding of sea water is possibly over some vulnerable low-lying coastal areas, especially around the morning and evening high tides, including over beach parking lots, bike paths, and harbor walkways. Moderate beach erosion is possible to likely. * ADDITIONAL DETAILS...There is a moderate chance that an upgrade to Coastal Flood Advisory and/or High Surf Advisory will be needed. These products will likely need to be extended into the weekend.

Extreme Heat Warning issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures up to 85 at the coast and 100 in the mountains and Cuyama valley. * WHERE...Cuyama Valley, Santa Barbara County Interior Mountains, Santa Barbara County Southeastern Coast, Santa Barbara County Southwestern Coast, Santa Cruz and Anacapa Islands, Santa Ynez Mountains Eastern Range, and Santa Ynez Mountains Western Range. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Very hot temperatures are likely to continue into the second week of October, possibly requiring an extension of this product.

Heat Advisory issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures around 90 near the coast to 103 inland. * WHERE...San Luis Obispo County Inland Central Coast, San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Barbara County Inland Central Coast, Santa Lucia Mountains, Santa Ynez Valley, and Southern Salinas Valley. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses.

Extreme Heat Warning issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Dangerously hot conditions with temperatures reaching 90 to 100 at the coast and 106 in the valleys. * WHERE...Coast and valleys of Los Angeles and Ventura Counties. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Heat Advisory issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

* WHAT...Temperatures of 80 to 95 degrees expected. * WHERE...San Luis Obispo County Beaches and Santa Barbara County Central Coast Beaches. * WHEN...From 10 AM Wednesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses.

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 Etiwanda.

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