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Winter Weather Advisory


URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
258 PM MST Sun Dec 17 2017

IDZ006-181800-
/O.EXB.KMSO.WW.Y.0045.171218T0000Z-171218T1800Z/
Southern Clearwater Mountains-
158 PM PST Sun Dec 17 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY...

* WHAT...Snow expected. Pockets of freezing rain possible. Plan
  on slippery road conditions. In addition, areas of poor
  visibility are expected. Total snow accumulations of 2 to 4
  inches for valleys, and 4 to 8 inches over Lolo Pass, are
  expected.

* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...Until 10 AM PST Monday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause travel difficulties. Be prepared for snow covered roads and
limited visibilities, and use caution while driving. The latest
road conditions for the state you are calling from can be obtained
by calling 5 1 1.
$$


Special Weather Statement


Special Weather Statement
National Weather Service Medford OR
316 PM PST Sun Dec 17 2017

ORZ030-031-181500-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Beatty, Bly, Chemult, Crescent,
Gilchrist, Sprague River, Adel, Lakeview, and Valley Falls
316 PM PST Sun Dec 17 2017

A snowstorm may bring advisory level amounts to areas east of the
Cascades on Tuesday and Wednesday. This may affect holiday travel
along the passes.


$$


Air Stagnation Advisory


URGENT - WEATHER MESSAGE
National Weather Service Medford OR
314 PM PST Sun Dec 17 2017


ORZ029>031-190000-
/O.CON.KMFR.AS.Y.0006.000000T0000Z-171219T1600Z/
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Altamont, Klamath Falls, Beatty, Bly,
Chemult, Sprague River, and Adel
314 PM PST Sun Dec 17 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 8 AM PST
TUESDAY...

* Locations include: All inland valleys.

* Impacts: Limited ventilation will result in stagnant air that is
  expected to result in degraded air quality. This degraded air
  quality may pose a risk to those working outside and to those
  with sensitive health issues.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an airmass across the advisory area, pollution will increase.

&&

$$

BTL


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Elko NV
247 PM PST Sun Dec 17 2017

NVZ030-031-033>041-182300-
Humboldt County-Northern Elko County-Southeastern Elko County-
Ruby Mountains/East Humboldt Range-White Pine County-
Northern Lander County and Northern Eureka County-
Southern Lander County and Southern Eureka County-
Southwestern Elko County-South Central Elko County-
Northwestern Nye County-Northeastern Nye County-
247 PM PST Sun Dec 17 2017

This hazardous weather outlook is for portions of Nevada...north
central Nevada...northeast Nevada...northwest Nevada and south
central Nevada.

.DAY ONE...This Afternoon and Tonight.

No significant weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Mild and dry weather expected through Tuesday. Late Tuesday night
into Wednesday, a cold front will drop southeast across the
region, bringing snow, gusty winds and much colder temperatures.
The initial band of snow could be moderate at times. In addition,
winds are expected to pick up ahead and behind the frontal
passage, which could lead to reduced visibility due to areas of
blowing and drifting snow. Morning commuters should be aware of
potential weather impacts to their travel. Snow showers and
breezy winds will continue into Wednesday night before dissipating
Thursday morning. Valley snow amounts will generally range in the
1-2 inch range for areas along and north of U.S. Highway 50.
Higher amounts possible for higher valleys and summits, especially
over northern NV. Starting Thursday, colder than normal
temperatures will be in place over the Great Basin. An even colder
shot of air is possible as we head towards next weekend. If you
are getting an early start to your holiday travel, make sure you
are aware of updated weather forecasts and road conditions.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to report weather phenomena according to
standard operating procedure.

$$

84

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
546 AM MST Sun Dec 17 2017

UTZ001>016-019>021-517-518-WYZ021-181300-
Cache Valley/Utah Portion-Northern Wasatch Front-
Salt Lake and Tooele Valleys-Southern Wasatch Front-
Great Salt Lake Desert and Mountains-Wasatch Mountain Valleys-
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Western Uinta Basin-Castle Country-San Rafael Swell-
Sanpete/Sevier Valleys-West Central Utah-Southwest Utah-
Utahs Dixie and Zion National Park-South Central Utah-
Glen Canyon Recreation Area/Lake Powell-Central Mountains-
Southern Mountains-Southwest Wyoming-
546 AM MST Sun Dec 17 2017

This Hazardous Weather Outlook is for the western two thirds of
Utah and southwest Wyoming.

.DAY ONE...Today and Tonight

Lingering light snow across southwest and central Utah and over
extreme southwest Wyoming will end this morning. Little additional
accumulation is expected.

Local gusty winds will continue until early this afternoon
through the gaps across portions of Washington County, including
along I-15 north of Washington.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

The next storm to impact the outlook area will arrive on
Wednesday. This storm has the potential to generate widespread
accumulating snow and bring very cold temperatures for Wednesday
and Thursday. Precipitation will end by Friday, though cold
temperatures will linger across the entire outlook area heading
into the weekend.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to standard operating procedures.

$$

For more information from NOAA/s National Weather Service visit...
http://weather.gov/saltlakecity

For information on potential road travel impacts visit...
http://www.udottraffic.utah.gov/roadweatherforecast.aspx

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
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