Los Angeles County, California
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Watch/Warnings
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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Los Angeles County, California
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Excessive Heat Warning
CAZ059-231145-
/O.CON.KLOX.EH.W.0001.000000T0000Z-170626T0400Z/
Antelope Valley-
Including the cities of Lancaster and Palmdale
839 PM PDT Thu Jun 22 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
SUNDAY...

* TEMPERATURES...105-110 degrees.

* Impacts...The very high temperatures will create a dangerous
situation in which there is an increased threat of heat
related illnesses. Temperatures inside vehicles, even if the
windows are partially open, can quickly rise to life-
threatening levels. The extended heat wave will also bring
elevated fire weather conditions through the weekend.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never, ever, leave people or pets in enclosed vehicles, even for
a short period of time.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

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 911.

&&

$$

Excessive Heat Warning
CAZ054-231145-
/O.CON.KLOX.EH.W.0001.000000T0000Z-170626T0400Z/
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Acton, Mount Wilson, and Sandberg
839 PM PDT Thu Jun 22 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
SUNDAY...

* TEMPERATURES...100-105 degrees across lower elevations. Night-
time temperatures in the 70s to around 80 degrees will be
common.

* IMPACTS...The very high temperatures will create a dangerous
situation in which there is an increased threat of heat
related illnesses. Temperatures inside vehicles, even if the
windows are partially open, can quickly rise to life-
threatening levels. The extended heat wave will also bring
elevated fire danger through the weekend, with critical fire
weather conditions on Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Never, ever, leave people or pets in enclosed vehicles, even for
a short period of time.

Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

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 911.

&&

$$

Fire Weather Warning
CAZ254-230400-
/O.CON.KLOX.FW.W.0001.000000T0000Z-170623T0400Z/
Los Angeles County Mountains / Angeles National Forest-
1033 AM PDT Thu Jun 22 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR THE INTERIOR LOS ANGELES
COUNTY MOUNTAINS...

* Winds...Southwest 15 to 25 mph with gusts to 35 mph. Localized
20 to 30 mph with gusts to 45 mph over the interior foothills
into the Antelope Valley.

* Relative Humidity...Minimums generally between 4 to 12 percent.

* Temperatures...Maximums of 98 to 103 in the lower mountain
elevations and foothills and 85 to 95 in the higher elevations.

* Impacts...If fire ignition occurs, conditions are favorable for
extreme fire behavior which would threaten life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
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Excessive Heat Watch
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Flood Warning
Flood Watch
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Hydrologic Statement
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Additional Severe Weather Maps
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THUNDERcast
THUNDERcast
The THUNDERcast map shows areas of probability for regional or national thunderstorms for the current day.
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1Km Storm Watch
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Metro Storm Watch
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