Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Contra Costa County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Los Angeles County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Marin County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Monterey County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Napa County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
San Francisco County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
San Mateo County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Santa Clara County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Santa Cruz County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Sonoma County
COASTAL FLOOD ADVISORY
Areas affected: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast
Effective: Sep 30 3:46 pm
Expired: Oct 1 5:00 pm
Duration: 1 day 1 hr 14 mins
Orange County 2 alerts
EXTREME HEAT WATCH
Areas affected: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
Effective: Sep 30 8:47 pm
Expired: Oct 1 6:15 am
Duration: 9 hrs 28 mins
EXTREME HEAT WARNING (3 updates)
Areas affected: Orange County Coastal
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Areas affected: Orange County Inland
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Areas affected: Santa Ana Mountains and Foothills
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Riverside County 2 alerts
EXTREME HEAT WATCH
Areas affected: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
Effective: Sep 30 8:47 pm
Expired: Oct 1 6:15 am
Duration: 9 hrs 28 mins
EXTREME HEAT WARNING (2 updates)
Areas affected: Santa Ana Mountains and Foothills
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
San Bernardino County 2 alerts
EXTREME HEAT WATCH
Areas affected: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
Effective: Sep 30 8:47 pm
Expired: Oct 1 6:15 am
Duration: 9 hrs 28 mins
EXTREME HEAT WARNING
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
San Diego County 2 alerts
EXTREME HEAT WATCH
Areas affected: San Diego County Coastal Areas; San Bernardino and Riverside County Valleys-The Inland Empire; San Diego County Inland Valleys; Santa Ana Mountains and Foothills; Orange County Coastal; Orange County Inland
Effective: Sep 30 8:47 pm
Expired: Oct 1 6:15 am
Duration: 9 hrs 28 mins
EXTREME HEAT WARNING (3 updates)
Areas affected: Santa Ana Mountains and Foothills
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Areas affected: San Diego County Inland Valleys
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Areas affected: San Diego County Coastal Areas
Effective: Oct 1 12:29 am
Expired: Oct 1 3:30 pm
Duration: 15 hrs 01 min
Santa Barbara County
EXTREME HEAT WATCH
Areas affected: Cuyama Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Santa Cruz and Anacapa Islands
Effective: Sep 30 9:46 am
Expired: Oct 2 10:15 am
Duration: 2 days 0 hrs 29 mins
Ventura County
EXTREME HEAT WATCH (2 updates)
Areas affected: Cuyama Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Santa Cruz and Anacapa Islands
Effective: Sep 30 9:46 am
Expired: Oct 2 10:15 am
Duration: 2 days 0 hrs 29 mins
Areas affected: Catalina and Santa Barbara Islands; Santa Clarita Valley; 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
COASTAL FLOOD ADVISORY 
EXTREME HEAT WATCH 
EXTREME HEAT WARNING 
