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Hard Freeze Warning


URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
308 AM PST Mon Dec 18 2017

CAZ038-181700-
/O.CON.KLOX.HZ.W.0004.000000T0000Z-171218T1700Z/
Cuyama Valley-
Including the city of Cuyama
308 AM PST Mon Dec 18 2017

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* TEMPERATURE...Temperatures in the mid and upper 20s will
  continue through mid-morning.

* IMPACTS...A hard freeze can burst exposed pipes and kill crops
  or sensitive vegetation. Extended exposure to cold can cause
  hypothermia, including outdoor pets and livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Hard Freeze Warning means temperatures of 28 degrees or less
for two or more consecutive hours are imminent. Protective
measures to save crops and sensitive vegetation should be
taken.vulnerable animals and pets should be kept indoors in a
house or barn. Exposed pipes should be wrapped to keep them from
bursting.

&&

$$


Freeze Warning


URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
308 AM PST Mon Dec 18 2017

CAZ036-181700-
/O.CON.KLOX.FZ.W.0012.000000T0000Z-171218T1700Z/
Santa Ynez Valley-
Including the cities of Solvang and Santa Ynez
308 AM PST Mon Dec 18 2017

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* TEMPERATURE...Temperatures around 30 will continue through mid-
  morning.

* IMPACTS...A freeze can kill crops and sensitive vegetation,
  and harm outdoor pets and livestock. Extended exposure to cold
  can cause hypothermia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means temperatures 29 and 32 for two or more
consecutive hours are imminent. Protective measures to save crops
and sensitive vegetation should be taken. Vulnerable animals and
pets should be kept indoors in a house or barn.

&&

$$


Wind Advisory


URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
308 AM PST Mon Dec 18 2017

CAZ053-054-181700-
/O.CON.KLOX.WI.Y.0078.000000T0000Z-171218T1700Z/
Ventura County Mountains-
Los Angeles County Mountains excluding the Santa Monica Range-
Including the cities of Lockwood Valley, Mount Pinos, Acton,
Mount Wilson, and Sandberg
308 AM PST Mon Dec 18 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WINDS AND TIMING...Northeast winds 20 to 30 mph with gusts to 45
  mph will continue through mid morning.

* IMPACTS...Gusty winds will make driving difficult, especially
  for high profile vehicles across Interstate 5 and Highway 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When driving, use extra caution. Be prepared for sudden gusty
cross winds.

&&

$$


Frost Advisory


URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
308 AM PST Mon Dec 18 2017

CAZ034-035-181700-
/O.CON.KLOX.FR.Y.0008.000000T0000Z-171218T1700Z/
San Luis Obispo County Central Coast-
Santa Barbara County Central Coast-
Including the cities of San Luis Obispo, Pismo Beach, Morro Bay,
Cambria, San Simeon, Santa Maria, Lompoc, and Vandenberg
308 AM PST Mon Dec 18 2017

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* TEMPERATURE...Temperatures in the lower and mid 30s will
  continue until mid-morning. Areas of frost are expected.


* IMPACTS...Frost can damage sensitive plants and harm pets.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that frost is imminent. Measures should be
taken to protect sensitive outdoor plants. Pets should be brought
indoors.

&&

$$


High Wind Watch


URGENT - WEATHER MESSAGE
National Weather Service Reno NV
335 AM PST Mon Dec 18 2017

CAZ070>073-NVZ001>003-005-190000-
/O.NEW.KREV.HW.A.0009.171220T0300Z-171220T2000Z/
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Northern Washoe County-
Including the cities of Cedarville, Fort Bidwell, Portola,
Susanville, South Lake Tahoe, Truckee, Bridgeport, Mammoth Lakes,
Hawthorne, Yerington, Smith Valley, Stateline, Incline Village,
Sparks, Gardnerville, Virginia City, Empire, and Gerlach
335 AM PST Mon Dec 18 2017

...HIGH WIND WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY MORNING...

The National Weather Service in Reno has issued a High Wind
Watch, which is in effect from Tuesday evening through Wednesday
morning.

* Timing: Tuesday night through Wednesday morning.

* Winds: Wind gusts 50 to 60 mph in the valleys with gusts up to
  75 mph in wind prone areas. Gusts of 120 mph along the Sierra
  Crest.

* Impacts: Some disruption to air travel and high profile vehicles
  should be expected. Damage to trees, fences and other light
  infrastructure will be possible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Now is the time to secure loose outdoor items such as patio
furniture, holiday decorations, and trash cans before winds
increase which could blow these items away. The best thing to do
is prepare ahead of time by making sure you have extra food and
water on hand, flashlights with spare batteries and/or candles in
the event of a power outage.

&&

$$

http://weather.gov/reno


Special Weather Statement


Special Weather Statement
National Weather Service Sacramento CA
345 AM PST Mon Dec 18 2017

CAZ013>019-063-064-066>069-190000-
Shasta Lake Area / Northern Shasta County-
Burney Basin / Eastern Shasta County-Northern Sacramento Valley-
Central Sacramento Valley-Southern Sacramento Valley-
Carquinez Strait and Delta-Northern San Joaquin Valley-
Mountains Southwestern Shasta County to Northern Lake County-
Clear Lake/Southern Lake County-
Northeast Foothills/Sacramento Valley-Motherlode-
Western Plumas County/Lassen Park-
West Slope Northern Sierra Nevada-
Including the cities of Shasta Dam, Burney, Redding, Red Bluff,
Chico, Oroville, Marysville/Yuba City, Sacramento,
Fairfield/Suisun, Stockton, Modesto, Alder Springs, Lakeport,
Paradise, Grass Valley, Jackson, Chester, Quincy, and Blue Canyon
345 AM PST Mon Dec 18 2017

...Showers Return to the Region Tuesday Night into Wednesday...

A potent, quick moving, weather system will bring showers to
interior NorCal Tuesday night into Wednesday. Snow levels will
lower to around 3000 to 4000 feet Tuesday night, and then below
2000 feet by later Wednesday. 3 to 6 inches of snow are expected
through the northern Sierra Nevada passes while some of the higher
peaks will see up to 8 inches of snowfall accumulation. Improving
conditions are expected Wednesday night behind the system.

Impacts:
Motorists traveling into the mountains should be prepared for
winter weather conditions and carry chains. Slick roads can be
expected.

Rainfall Totals: Under a quarter inch for the Central Valley with
up to three quarters of an inch over portions of the foothills and
mountains.

Snowfall Totals: 3 to 6 inches above 4500 feet with up to 8 inches
over the higher peaks.

Winds: Locally gusty southwest wind to 50 mph or higher through
the passes.

$$

Special Weather Statement
National Weather Service RENO NV
322 AM PST Mon Dec 18 2017

CAZ070>073-NVZ001>005-182330-
Surprise Valley California-Lassen-Eastern Plumas-
Eastern Sierra Counties-Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Western Nevada Basin and Range including Pyramid Lake-
Northern Washoe County-
Including the cities of Cedarville, Eagleville, Fort Bidwell,
Portola, Susanville, Westwood, Sierraville, Loyalton,
South Lake Tahoe, Tahoe City, Truckee, Markleeville, Bridgeport,
Coleville, Lee Vining, Mammoth Lakes, Hawthorne, Yerington,
Smith Valley, Mina, Schurz, Stateline, Glenbrook,
Incline Village, Sparks, Verdi, Gardnerville, Virginia City,
Fernley, Fallon, Lovelock, Silver Springs, Nixon, Imlay, Empire,
and Gerlach
322 AM PST Mon Dec 18 2017

A very strong cold front will move through the Sierra and western
Nevada Tuesday night into Wednesday. Likely impacts from this storm
will be: very strong potentially damaging winds, widespread snow
down to all valley floors, followed by very cold temperatures.

* Winds are forecast to become very strong with damaging wind
  gusts possible. Winds in western Nevada could reach into the 50
  to 60 mph range with wind prone areas potentially exceeding 75
  mph. The duration of the strongest winds is expected to be
  relatively short, around 3 to 6 hours. Due to the timing of the
  winds occurring overnight, the wind gusts could be especially
  erratic with near calm conditions one minute and very strong
  wind gusts the next. Strong wind shear and turbulence is likely
  ahead of the front.

* Snow is expected to be an intense short duration event with snow
  falling at all elevations, even `down here` in Reno. Current
  expectations is for 1-2 inches of snowfall in the valleys of
  western Nevada with most of it likely falling in 1-2 hours along
  the front. Recent simulations have shifted the system westward
  increasing the potential snow accumulation in the Sierra with
  the current forecast for 3 to 6 inches of snow. Timing of this
  snowfall will likely have impacts on the Wednesday morning
  commute.

* Very cold air behind the front will bring the coldest
  temperatures of the season. By Thursday, high temperatures in
  western Nevada will not get out of the 30s and depending on
  snowfall may only be around freezing. Overnight lows will drop
  into the teens and single digits.

$$


http://weather.gov/reno


Air Quality Alert


CAZ034-037-051-181900-
San Luis Obispo County Central Coast-
San Luis Obispo County Interior Valleys-
San Luis Obispo County Mountains-
Including the cities of San Luis Obispo, Pismo Beach, Morro Bay,
Cambria, San Simeon, Paso Robles, Atascadero, and Black Mountain
245 PM PST Fri Dec 15 2017

...AIR QUALITY ALERT EXTENDED DUE TO SMOKE IMPACTS FROM WILDFIRES
THROUGH MONDAY MORNING...

The San Luis Obispo County Air Pollution Control District has
extended an air quality alert due to smoke impacts in San Luis Obispo
County through 11 AM PST Monday. Smoke from the from wildfires in
Ventura and Santa Barbara Counties is being transported into San Luis
Obispo County.

Exposure to particle pollution can cause serious health problems...
aggravate lung disease...cause asthma attacks and acute bronchitis...
and increase risk of respiratory infections.

Residents are advised to use caution as conditions warrant. People
with heart or lung disease should follow their doctors advice for
dealing with episodes of blowing dust.

Additionally...older adults and children should avoid prolonged
exposure...strenuous activity or heavy exertion...as conditions
dictate.

For the latest air quality forecasts and information...visit the San
Luis Obispo County Air Pollution Control District website at
www.slocleanair.org or call 805.781.5912.

$$

15

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE