Areas affected: 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
Effective: Aug 18 11:47 am
Expired: Aug 19 3:00 am
Duration: 15 hrs 13 mins
Areas affected: 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
Effective: Aug 19 12:14 am
Expired: Aug 19 3:30 pm
Duration: 15 hrs 16 mins
Riverside County 2 alerts
EXTREME HEAT WARNING (3 updates)
Areas affected: 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
Effective: Aug 18 11:47 am
Expired: Aug 19 3:00 am
Duration: 15 hrs 13 mins
Areas affected: 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
Effective: Aug 19 12:14 am
Expired: Aug 19 3:30 pm
Duration: 15 hrs 16 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 19 12:58 am
Expired: Aug 19 3:30 pm
Duration: 14 hrs 32 mins
HEAT ADVISORY (2 updates)
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 18 8:47 pm
Expired: Aug 19 6:15 am
Duration: 9 hrs 28 mins
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 19 12:58 am
Expired: Aug 19 3:30 pm
Duration: 14 hrs 32 mins
Inyo County
EXTREME HEAT WARNING
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 18 4:16 am
Expired: Aug 19 5:00 am
Duration: 1 day 0 hrs 44 mins
San Bernardino County 2 alerts
EXTREME HEAT WARNING
Areas affected: Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Hualapai Mountains; Northwest Deserts; Death Valley National Park; Eastern Mojave Desert, Including the Mojave National Preserve; Morongo Basin; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Southern Clark County; Lake Mead - NV side; Lake Mohave - NV side
Effective: Aug 18 4:16 am
Expired: Aug 19 5:00 am
Duration: 1 day 0 hrs 44 mins
HEAT ADVISORY (2 updates)
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 18 8:47 pm
Expired: Aug 19 6:15 am
Duration: 9 hrs 28 mins
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 19 12:58 am
Expired: Aug 19 3:30 pm
Duration: 14 hrs 32 mins
San Luis Obispo County
HEAT ADVISORY
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
Santa Barbara County 2 alerts
HEAT ADVISORY (2 updates)
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
Areas affected: Santa Ynez Mountains Western Range
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
WIND ADVISORY (2 updates)
Areas affected: Santa Ynez Mountains Western Range
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
Areas affected: Santa Barbara County Southwestern Coast
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
Ventura County
HEAT ADVISORY
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Interior Mountains; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Santa Susana Mountains; Southern Ventura County Mountains; Western San Gabriel Mountains and Highway 14 Corridor; Eastern San Gabriel Mountains; Los Angeles County San Gabriel Valley
Effective: Aug 18 7:33 pm
Expired: Aug 19 2:00 am
Duration: 6 hrs 27 mins
San Diego County
EXTREME HEAT WARNING
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
EXTREME HEAT WARNING 
HEAT ADVISORY 
WIND ADVISORY 
