Los Angeles, California
Regional Weather Alerts
| Alert: | Extreme Heat Watch |
| Area(s): | San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Orange County Coastal; Orange County Inland |
| Effective: | 2026-03-13 @ 10:19 pm -> 2026-03-20 @ 10:00 pm |
| Onset: | 2026-03-16 @ 12:00 pm -> 2026-03-14 @ 9:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS San Diego CA on 2026-03-13 @ 10:19 pm |
| Headline: | Extreme Heat Watch issued March 13 at 8:19PM PDT until March 20 at 8:00PM PDT by NWS San Diego CA |
| Description: |
* WHAT...For the Heat Advisory, temperatures in the mid to upper 80s near the coast, up to 94 inland. For the Extreme Heat Watch, dangerously hot conditions with temperatures 85 to 90 near the coast, up to 105 inland. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, and San Diego County Valleys. * WHEN...From Monday morning through Friday evening. * IMPACTS...Early time of year and prolonged nature of this heat event will lead to increased risk of heat illness, especially for vulnerable populations and those without cooling systems. * ADDITIONAL DETAILS...Slightly cooler this weekend. High temperatures next week will be 20 to potentially 30 degrees above normal for this time of year, where record breaking heat is likely. |
| Alert: | Extreme Heat Watch |
| Area(s): | Santa Ana Mountains and Foothills |
| Effective: | 2026-03-13 @ 10:19 pm -> 2026-03-20 @ 10:00 pm |
| Onset: | 2026-03-16 @ 12:00 pm -> 2026-03-14 @ 9:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS San Diego CA on 2026-03-13 @ 10:19 pm |
| Headline: | Extreme Heat Watch issued March 13 at 8:19PM PDT until March 20 at 8:00PM PDT by NWS San Diego CA |
| Description: |
* WHAT...Hot conditions with temperatures up to 93 possible. * WHERE...Santa Ana Mountains and Foothills. * WHEN...From Monday morning through Friday evening. * IMPACTS...Early time of year and prolonged nature of this heat event will lead to increased risk of heat illness, especially for vulnerable populations and those without cooling systems. * ADDITIONAL DETAILS...Slightly cooler this weekend. High temperatures next week will be 20 to potentially 30 degrees above normal for this time of year, where record breaking heat is likely. |
| Alert: | Extreme Heat Watch |
| Area(s): | Santa Clarita Valley; San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; 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 |
| Effective: | 2026-03-13 @ 9:59 pm -> 2026-03-20 @ 10:00 pm |
| Onset: | 2026-03-16 @ 12:00 pm -> 2026-03-14 @ 5:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Los Angeles/Oxnard CA on 2026-03-13 @ 9:59 pm |
| Headline: | Extreme Heat Watch issued March 13 at 7:59PM PDT until March 20 at 8:00PM PDT by NWS Los Angeles/Oxnard CA |
| Description: |
* WHAT...Dangerously hot conditions with temperatures up to 100 possible. * WHERE...A portion of southwest California. * WHEN...From Monday morning through Friday evening. * IMPACTS...Long duration summer-like heat wave will lead to increased risk of heat illness, especially for vulnerable people such as the young and old and those without cooling systems. * ADDITIONAL DETAILS...Take steps now to ensure you have a heat plan for you and your community. |
| Alert: | Extreme Heat Watch |
| Area(s): | Catalina and Santa Barbara Islands; San Miguel and Santa Rosa Islands; Santa Cruz and Anacapa Islands |
| Effective: | 2026-03-13 @ 9:59 pm -> 2026-03-20 @ 10:00 pm |
| Onset: | 2026-03-16 @ 12:00 pm -> 2026-03-14 @ 5:00 pm |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Los Angeles/Oxnard CA on 2026-03-13 @ 9:59 pm |
| Headline: | Extreme Heat Watch issued March 13 at 7:59PM PDT until March 20 at 8:00PM PDT by NWS Los Angeles/Oxnard CA |
| Description: |
* WHAT...Historic, long and record breaking March heatwave possible next week with dangerously hot conditions up to 95 possible within the Extreme Heat Watch. * WHERE...Southwest California Islands. * WHEN...From Monday morning through Friday evening. * 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. |
| Alert: | Wind Advisory |
| Area(s): | Mojave Desert Slopes |
| Effective: | 2026-03-13 @ 8:55 pm -> 2026-03-15 @ 7:00 am |
| Onset: | 2026-03-14 @ 10:00 am -> 2026-03-14 @ 6:00 am |
| Severity: | Moderate |
| Certainty: | Likely |
| Urgency: | Expected |
| Issued By: | NWS Hanford CA on 2026-03-13 @ 8:55 pm |
| Headline: | Wind Advisory issued March 13 at 6:55PM PDT until March 15 at 5:00AM PDT by NWS Hanford CA |
| Description: |
* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Mojave Desert Slopes. * WHEN...From 8 AM Saturday to 5 AM PDT Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. |
| Alert: | Extreme Heat Watch |
| Area(s): | Parker Valley; 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 |
| Effective: | 2026-03-13 @ 2:04 pm -> 2026-03-22 @ 10:00 pm |
| Onset: | 2026-03-18 @ 1:00 pm -> 2026-03-14 @ 6:15 am |
| Severity: | Severe |
| Certainty: | Likely |
| Urgency: | Future |
| Issued By: | NWS Phoenix AZ on 2026-03-13 @ 2:04 pm |
| Headline: | Extreme Heat Watch issued March 13 at 12:04PM MST until March 22 at 8:00PM MST by NWS Phoenix AZ |
| Description: |
* WHERE...Portions of southwest Arizona and southeast and southern California. * WHEN...From Wednesday morning through Sunday, March 22. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Afternoon high temperatures between 103 and 108 degrees. |