* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Ojai Valley.

* WHEN...From midnight tonight to 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

Take steps now to protect tender plants from the cold.

...RED FLAG WARNING IN EFFECT THROUGH THURSDAY 8 PM PST FOR MOST
OF LOS ANGELES AND VENTURA COUNTIES FOR EXTREMELY LOW RELATIVE
HUMIDITY AND PERIODS OF GUSTY OFFSHORE WINDS...

.The Particularly Dangerous Situation (PDS) Red Flag Warning has
ended, but dangerous fire weather conditions will persist through
Thursday or Friday. Northeast winds will weaken and shrink in
coverage tonight into Wednesday, but will remain locally gusty in
the favored hills and mountains. Winds will strengthen and expand
once again Wednesday afternoon through Thursday morning, then
lower and shrink in coverage again Thursday Night into Friday.
Meanwhile, extremely low humidities will persist with minimums
under 10 percent over much of the area and poor overnight
recoveries. While many areas will see a lull in the winds tonight
into Wednesday, the extremely dry conditions will persist and
winds will increase again later Wednesday. As result, the Red Flag
Warning has been extended over most of Los Angeles and Ventura
Counties through 8pm Thursday. Some of the windiest areas may
need to be extended into Friday as well.

The National Weather Service in Los Angeles/Oxnard has cancelled
the Fire Weather Watch, and replaced it with this Red Flag Warning.

* WINDS...Northeast 15 to 25 mph with gusts to 40 mph will
increase to 20 to 30 mph with gusts to 50 mph by Wednesday
afternoon and continue through Thursday. Isolated gusts of 50 to
65 mph in the favored locations.

* RELATIVE HUMIDITY...Daily minimums of 2 to 10 percent common
with very poor to minimal overnight recoveries.

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

* ADDITIONAL DETAILS...Lingering winds and very dry conditions may
require an extension of this Red Flag Warning into Friday.

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Use extreme caution
with anything that can spark a wildfire. Residents near wildland
interfaces should be prepared to evacuate if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

...RED FLAG WARNING IN EFFECT THROUGH THURSDAY 8 PM PST FOR MOST
OF LOS ANGELES AND VENTURA COUNTIES FOR EXTREMELY LOW RELATIVE
HUMIDITY AND PERIODS OF GUSTY OFFSHORE WINDS...

.The Particularly Dangerous Situation (PDS) Red Flag Warning has
ended, but dangerous fire weather conditions will persist through
Thursday or Friday. Northeast winds will weaken and shrink in
coverage tonight into Wednesday, but will remain locally gusty in
the favored hills and mountains. Winds will strengthen and expand
once again Wednesday afternoon through Thursday morning, then
lower and shrink in coverage again Thursday Night into Friday.
Meanwhile, extremely low humidities will persist with minimums
under 10 percent over much of the area and poor overnight
recoveries. While many areas will see a lull in the winds tonight
into Wednesday, the extremely dry conditions will persist and
winds will increase again later Wednesday. As result, the Red Flag
Warning has been extended over most of Los Angeles and Ventura
Counties through 8pm Thursday. Some of the windiest areas may
need to be extended into Friday as well.

The National Weather Service in Los Angeles/Oxnard has cancelled
the Fire Weather Watch, and replaced it with this Red Flag Warning.

* WINDS...Northeast will peak at 20 to 30 mph with gusts to 50 mph
Wednesday afternoon through Thursday, after a lull later
tonight into Wednesday.

* RELATIVE HUMIDITY...Daily minimums of 2 to 10 percent common
with very poor to minimal overnight recoveries.

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

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Use extreme caution
with anything that can spark a wildfire. Residents near wildland
interfaces should be prepared to evacuate if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

* WHAT...The South Coast AQMD has issued an air quality alert due to
harmful levels of windblown dust and ash.

* WHERE...South Coast Air Basin. Pollution levels can vary by time
and location depending on emissions and local weather conditions.

* WHEN...Through 10 PM Tuesday.

* IMPACTS...Particle pollution can get deep into the lungs and cause
serious health problems such as asthma attacks, heart and lung
disease symptoms, and increased risk of respiratory infections.
Everyone can be affected, but sensitive groups such as people with
lung or heart disease, older adults, people who are pregnant,
children, and those who spend a lot of time outdoors are at greater
risk.

* ADDITIONAL DETAILS...Cleaning up ash can be harmful for your
health. Please see the California Department of Public Health
Guidelines for the safe cleanup of ash at
https://www.cdph.ca.gov/Programs/EPO/Pages/Wildfire%20Pages/Safe-
Cleanup-of-Ash.aspx. 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.

To protect your health, in areas affected by windblown dust and ash:

* Avoid outdoor activity
* Keep windows and doors closed
* Run your air conditioner and/or an air purifier
* Do not use whole house fans or swamp coolers that bring in outside
air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles, incense,
grilling, and gasoline-powered lawn and garden equipment

* WHAT...The South Coast AQMD has issued an air quality alert due to
harmful levels of windblown dust and ash.

* WHERE...in the South Coast Air Basin, Coachella Valley, and
eastern Riverside County. Pollution levels can vary by time and
location depending on emissions and local weather conditions.

* WHEN...10 AM Monday through 10 PM Tuesday.

* IMPACTS...Particle pollution can get deep into the lungs and cause
serious health problems such as asthma attacks, heart and lung
disease symptoms, and increased risk of respiratory infections.
Everyone can be affected, but sensitive groups such as people with
lung or heart disease, older adults, people who are pregnant,
children, and those who spend a lot of time outdoors are at greater
risk.

To protect your health, in areas affected by windblown dust and ash:

* Avoid outdoor activity
* Keep windows and doors closed
* Run your air conditioner and/or an air purifier
* Do not use whole house fans or swamp coolers that bring in
outside
air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles,
incense, grilling, and gasoline-powered lawn and garden equipment

* ADDITIONAL DETAILS...

Cleaning up ash can be harmful for your health. See California
Department of Public Health Guidelines for the safe cleanup of ash
at https://www.cdph.ca.gov/Programs/EPO/Pages/Wildfire%20Pages/Safe-
Cleanup-of-Ash.aspx.

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.

To view current and forecasted air quality levels, visit the Mojave
Desert Air Quality Management District website at mdaqmd.ca.gov.
Additional details for this air quality alert may be available at
www.mdaqmd.ca.gov/advisories.

To view current and forecasted air quality levels, visit the
antelope Valley Air Quality Management District website at
www.avaqmd.ca.gov.

To view current and forecasted air quality levels, visit the San
Diego County Air Pollution Control District website at
www.sdapcd.org/content/sdapcd/air-quality.html. Additional details
for this air quality alert may be available at
www.sdapcd.org/content/sdapcd/air-quality/smoke-advisory.html.

To view current and forecast air quality within Imperial County
visit the Imperial County Air Quality website at
http://www.imperialvalleyair.org/ or follow ICAPCD on Twitter,
facebook or Instagram (@county_air).