Weather Alerts for Los Angeles County

Issued by the National Weather Service

Excessive Heat Warning  EXCESSIVE HEAT WARNING   Excessive Heat Warning
LOS ANGELES COUNTY

Areas Affected:
Santa Barbara County Interior Mountains - Southern Ventura County Mountains - Northern Ventura County Mountains - Interstate 5 Corridor - Western San Gabriel Mountains and Highway 14 Corridor - Western Antelope Valley Foothills
Effective: Sun, 6/23 1:39am Updated: Sun, 6/23 5:15am Urgency: Expected
Expires: Sun, 6/23 7:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...Dangerously hot conditions with temperatures up to 100 to
105 expected.

* WHERE...Interstate 5 Corridor, Northern Ventura County Mountains,
Santa Barbara County Interior Mountains, Southern Ventura County
Mountains, Western Antelope Valley Foothills, and Western San
Gabriel Mountains and Highway 14 Corridor.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

Information:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Stay cool, stay hydrated, stay informed.

Excessive Heat Warning  EXCESSIVE HEAT WARNING   Excessive Heat Warning
LOS ANGELES COUNTY

Areas Affected:
Eastern Antelope Valley Foothills - Antelope Valley
Effective: Sun, 6/23 1:39am Updated: Sun, 6/23 5:15am Urgency: Expected
Expires: Sun, 6/23 7:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...Dangerously hot conditions with temperatures up to 105 to
108 expected.

* WHERE...Antelope Valley and Eastern Antelope Valley Foothills.

* WHEN...Until 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

Information:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Stay cool, stay hydrated, stay informed.

Dense Fog Advisory  DENSE FOG ADVISORY   Dense Fog Advisory
LOS ANGELES COUNTY

Areas Affected:
San Luis Obispo County Beaches - Santa Barbara County Central Coast Beaches - Santa Barbara County Southwestern Coast - Santa Barbara County Southeastern Coast - Ventura County Beaches - Ventura County Inland Coast - Malibu Coast - Los Angeles County Beaches
Effective: Sun, 6/23 1:39am Updated: Sun, 6/23 5:15am Urgency: Expected
Expires: Sun, 6/23 9:00am Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Los Angeles County Beaches, Malibu Coast, San Luis Obispo
County Beaches, Santa Barbara County Central Coast Beaches, Santa
Barbara County Southeastern Coast, Santa Barbara County
Southwestern Coast, Ventura County Beaches, and Ventura County
Inland Coast.

* WHEN...Until 9 AM PDT this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

Information:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

Heat Advisory  HEAT ADVISORY   Heat Advisory
LOS ANGELES COUNTY

Areas Affected:
Cuyama Valley - Santa Clarita Valley - Santa Lucia Mountains - Southern Salinas Valley - San Luis Obispo County Interior Valleys - San Luis Obispo County Mountains - Santa Ynez Mountains Eastern Range - Lake Casitas - Ojai Valley - Central Ventura County Valleys - 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 - Eastern San Gabriel Mountains - Los Angeles County San Gabriel Valley
Effective: Sun, 6/23 1:39am Updated: Sun, 6/23 5:15am Urgency: Expected
Expires: Sun, 6/23 7:00pm Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Temperatures around 90 to 100 expected.

* WHERE...A portion of southwest California.

* WHEN...Until 8 PM PDT this evening.

* IMPACTS...Hot temperatures may cause heat illnesses.

Information:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

Air Quality Alert  AIR QUALITY ALERT   Air Quality Alert
LOS ANGELES COUNTY

Areas Affected:
Santa Clarita Valley - Los Angeles County Inland Coast including Downtown Los Angeles - Western San Fernando Valley - Eastern San Fernando Valley - Santa Susana Mountains - Interstate 5 Corridor - Western San Gabriel Mountains and Highway 14 Corridor - Eastern San Gabriel Mountains - Los Angeles County San Gabriel Valley
Effective: Sat, 6/22 3:30pm Updated: Sun, 6/23 5:15am Urgency: Unknown
Expires: Tue, 6/25 7:00pm Severity: Unknown Certainty: Unknown

 
Details:
The South Coast Air Quality Management District has issued an Air
Quality Alert due to elevated ozone air pollution. This Air Quality
Alert is in effect until 7 PM PDT Tuesday.

Elevated levels ozone, the predominant summertime pollutant, are
likely to result in poor air quality in the afternoon and early
evening hours. Ozone air pollution can cause respiratory health
problems, including trouble breathing, asthma attacks, and lung
damage. Children, older adults, and people with asthma or COPD may
be more sensitive to health effects of ozone.

Air quality can change depending on time of day and weather
conditions. Increased emissions of chemicals and faster ozone
formation rates due to heat, along with low winds and stagnant
weather can cause unusually high and persistent levels of ozone
pollution.

To help minimize ozone air pollution levels:
- Limit the use of gasoline powered lawn and garden equipment until
the evening hours
- Conserve electricity and set your air conditioner at a higher
temperature
- Try to delay trips to the gas station and the use of household
chemicals until the evening

Check air quality levels and take appropriate action as needed. When
air quality index (AQI) are Unhealthy for Sensitive Groups (orange),
people with heart or lung disease, pregnant women, children, and
older adult should limit prolonged or heavy outdoor exertion. When
air quality reaches Unhealthy (red) AQI levels, everyone may
experience adverse health effects and sensitive groups should avoid
time outdoors. As Very Unhealthy (purple) AQI levels, sensitive
groups should avoid all outdoors physical activity and everyone else
should avoid prolonged or heavy outdoor exertion.

To view current and forecasted air quality levels, visit the South
Coast Air Quality Management District website at aqmd.gov or download
the mobile app at www.aqmd.gov/mobileapp. Additional details for this
air quality alert may be available at www.aqmd.gov/advisory.

For the additional information, call the South Coast Air Quality
Management District.