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 10:49 am
Expired: Aug 20 5:00 am
Duration: 18 hrs 11 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 20 2:30 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 00 mins
Riverside County 2 alerts
EXTREME HEAT WARNING (4 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 19 10:49 am
Expired: Aug 20 5:00 am
Duration: 18 hrs 11 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 19 8:39 pm
Expired: Aug 20 6:15 am
Duration: 9 hrs 36 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 20 1:31 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 59 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 20 2:30 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 00 mins
HEAT ADVISORY (2 updates)
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 19 8:39 pm
Expired: Aug 20 6:15 am
Duration: 9 hrs 36 mins
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 20 1:31 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 59 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 19 4:11 am
Expired: Aug 20 5:00 am
Duration: 1 day 0 hrs 49 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 19 4:11 am
Expired: Aug 20 5:00 am
Duration: 1 day 0 hrs 49 mins
HEAT ADVISORY (2 updates)
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 19 8:39 pm
Expired: Aug 20 6:15 am
Duration: 9 hrs 36 mins
Areas affected: San Bernardino and Riverside County Valleys-The Inland Empire
Effective: Aug 20 1:31 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 59 mins
Modoc County
FIRE WEATHER WATCH (2 updates)
The National Weather Service in Medford has issued a Fire Weather
Areas affected: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 19 11:53 am
Expired: Aug 20 12:00 am
Duration: 12 hrs 07 mins
Areas affected: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 20 1:40 am
Expired: Aug 20 5:00 pm
Duration: 15 hrs 20 mins
Siskiyou County
FIRE WEATHER WATCH (2 updates)
The National Weather Service in Medford has issued a Fire Weather
Areas affected: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 19 11:53 am
Expired: Aug 20 12:00 am
Duration: 12 hrs 07 mins
Areas affected: Central Siskiyou County Including Shasta Valley; Siskiyou County from the Cascade Mountains East and South to Mt Shasta; Modoc County Except for the Surprise Valley
Effective: Aug 20 1:40 am
Expired: Aug 20 5:00 pm
Duration: 15 hrs 20 mins
San Diego County
EXTREME HEAT WARNING (2 updates)
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 19 8:39 pm
Expired: Aug 20 6:15 am
Duration: 9 hrs 36 mins
Areas affected: Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Effective: Aug 20 1:31 am
Expired: Aug 20 3:30 pm
Duration: 13 hrs 59 mins
San Luis Obispo County
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 Ynez Mountains Western Range; 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 19 2:48 am
Expired: Aug 20 4:00 pm
Duration: 1 day 13 hrs 12 mins
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Ynez Mountains Western Range; 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 20 1:31 am
Expired: Aug 20 8:00 pm
Duration: 18 hrs 29 mins
Santa Barbara County
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 Ynez Mountains Western Range; 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 19 2:48 am
Expired: Aug 20 4:00 pm
Duration: 1 day 13 hrs 12 mins
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Ynez Mountains Western Range; 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 20 1:31 am
Expired: Aug 20 8:00 pm
Duration: 18 hrs 29 mins
Ventura County
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 Ynez Mountains Western Range; 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 19 2:48 am
Expired: Aug 20 4:00 pm
Duration: 1 day 13 hrs 12 mins
Areas affected: Cuyama Valley; Santa Clarita Valley; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Ynez Mountains Western Range; 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
EXTREME HEAT WARNING 
HEAT ADVISORY 
FIRE WEATHER WATCH 
