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Special Weather Statement


Special Weather Statement
National Weather Service Grand Junction CO
219 PM MST Mon Nov 19 2018

COZ001>014-017>023-UTZ022>025-027>029-202200-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-
Upper Gunnison River Valley-Uncompahgre Plateau and Dallas Divide-
Northwest San Juan Mountains-Southwest San Juan Mountains-
Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
Including the cities of Rangely, Dinosaur, Craig, Hayden, Meeker,
Rio Blanco, Columbine, Hahns Peak, Toponas, Steamboat Springs,
Grand Junction, Fruita, Palisade, Collbran, De Beque, New Castle,
Mesa, Parachute, Rifle, Silt, Eagle, Edwards, Glenwood Springs,
Carbondale, Basalt, Skyway, Aspen, Vail, Snowmass, Montrose,
Hotchkiss, Delta, Crested Butte, Taylor Park, Marble, Buford,
Trappers Lake, Gunnison, Cimarron, Ridgway, Glade Park,
Telluride, Ouray, Lake City, Silverton, Rico, Hesperus, Gateway,
Nucla, Cortez, Dove Creek, Mancos, Durango, Bayfield, Ignacio,
Pagosa Springs, Blanding, Bluff, Mexican Hat, Manila, Dutch John,
Vernal, Jensen, Ballard, Fort Duchesne, Randlett, Moab,
Castle Valley, Thompson Springs, Monticello,
Canyonlands National Park, Dead Horse Point State Park,
and Fry Canyon
219 PM MST Mon Nov 19 2018

...WINTER WEATHER ON THE WAY FOR THANKSGIVING THROUGH THE WEEKEND...

Active weather will return to eastern Utah and western Colorado on
Thanksgiving Day and will last through the weekend. Two storm
systems in quick succession will bring snow throughout much of
the higher terrain and rain, possibly mixing with snow, to lower
elevation valleys.

The first system will bring light to moderate snowfall to the
higher terrain starting around noon on Thanksgiving Day. All
mountain ranges across eastern Utah and western Colorado can
expect to see accumulating snow from this system. Holiday travel
will likely be impacted from the afternoon onward, especially
over the higher mountain passes including Vail Pass, Rabbit Ears
Pass, and Monarch Pass. Snow is also expected over the San Juan
Mountain passes including Lizard Head, Red Mountain, Molas, and
Wolf Creek. Snow accumulations will taper off by sunrise on Friday
morning with anywhere from 3-6 inches expected above 8,000 feet
and possibly over 6 inches above 10,000 feet.

After a brief break on Friday morning and afternoon, another
stronger storm system will move in on Friday evening. Snow will
spread south across from the northern mountains of Utah and
Colorado, into central Colorado by midnight Saturday, and into
southern Colorado by sunrise Saturday morning. While some forecast
uncertainty remains, confidence is growing that this second storm
could produce at least 6 to 12 inches of snow across much of
central and northern Colorado. With colder air in place, many
valley locations across the western slope may also see their first
accumulating snow of the season on Saturday.

Key Takeaways:
-Snow will affect all major mountain passes from Thanksgiving
 afternoon through the weekend.
-Travelers should be prepared for winter weather driving
 conditions and check local road conditions frequently.
-Winter weather may affect lower elevation valleys that have not
 seen snowfall yet this season.
-Now is the time to prepare. Is your vehicle ready? Do you have a
 winter safety kit in your car? Do you have a way to access
 weather information?

$$

Special Weather Statement
National Weather Service Pocatello ID
154 PM MST Mon Nov 19 2018

IDZ056-058-060>066-071>075-202145-
Southern Hills/Albion Mountains-Marsh and Arbon Highlands-
Bear River Range-Bear Lake Valley-Blackfoot Mountains-
Caribou Range-Big Hole Mountains-Teton Valley-
Centennial Mountains - Island Park-Frank Church Wilderness-
Sawtooth/Stanley Basin-Sun Valley Region-
Big Lost Highlands/Copper Basin-Wood River Foothills-
Including the cities of Albion, Almo, Inkom, McCammon, Downey,
Lava Hot Springs, Emigration Summit, St. Charles, Montpelier,
Georgetown, Grace, Soda Springs, Henry, Bone, Wayan, Swan Valley,
Victor, Ashton, Tetonia, Driggs, Island Park, Kilgore, Clayton,
Stanley, Ketchum, Sun Valley, Galena, Copper Basin, Hailey,
Bellevue, and Picabo
154 PM MST Mon Nov 19 2018

...HAZARDOUS TRAVEL CONDITIONS POSSIBLE IN THE MOUNTAINS FRIDAY...

A series of Pacific storms will sweep across the region Thursday
through Saturday morning creating hazardous travel conditions in
the mountains above 5500 feet MSL. Modest accumulations of 1 to 3
inches are possible with the first storm Thursday while
significant amounts of snowfall ranging from 7 to 14 inches is
anticipated Friday morning through Saturday morning. Less certain
weather impacts are possible on Sunday as well. Travelers are
advised to monitor the latest forecasts and plan accordingly prior
to venturing out during the long Holiday weekend.

$$

Special Weather Statement
National Weather Service Pocatello ID
154 PM MST Mon Nov 19 2018

IDZ051>055-057-059-067>070-202145-
Shoshone/Lava Beds-Arco/Mud Lake Desert-Upper Snake River Plain-
Lower Snake River Plain-Eastern Magic Valley-Raft River Region-
Franklin/Eastern Oneida Region-Beaverhead - Lemhi Highlands-
Lost River Valley-Lost River Range-Challis/Pahsimeroi Valleys-
Including the cities of Shoshone, Richfield, Carey, Mud Lake,
INL, Craters of the Moon NM, Idaho Falls, Rexburg, St. Anthony,
Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley,
Rupert, Heyburn, Oakley, Malta, Rockland, Holbrook, Malad,
Preston, Thatcher, Dubois, Spencer, Edie School, Small, Howe,
Arco, Mackay, Chilly, Borah Peak, and Challis
154 PM MST Mon Nov 19 2018

...LOCALLY DIFFICULT TRAVEL CONDITIONS POSSIBLE IN THE VALLEYS
FRIDAY AND SATURDAY MORNING...

A series of Pacific storms will sweep across the region Thursday
through Saturday morning creating locally difficult travel
conditions in the valleys below 5500 feet MSL and interior
mountain passes such as the Lost River Range. Light
accumulations up to an inch are possible Thursday morning with
the first storm system and a Trace to 2 inches with the second
storm system Friday morning and Saturday morning. Less certain
weather impacts are possible on Sunday as well. Travelers are
advised to monitor the latest forecasts and plan accordingly prior
to venturing out during the long Holiday weekend.

$$


Hazardous Weather Outlook


Hazardous Weather Outlook...UPDATED
National Weather Service Rapid City SD
811 PM MST Mon Nov 19 2018

SDZ001-002-012>014-031-032-042>044-046-047-073-201400-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Pennington Co Plains-Haakon-Oglala Lakota-Jackson-Bennett-
Mellette-Todd-Southern Meade Co Plains-
811 PM MST Mon Nov 19 2018 /911 PM CST Mon Nov 19 2018/

This Hazardous Weather Outlook is for portions of western South
Dakota.

.DAY ONE...Tonight

Areas of fog will be possible through the night. Motorists can
expect rapid changes in visibility, with visibility less than one
quarter mile in some areas.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
759 PM MST Mon Nov 19 2018

UTZ001>016-019>021-517-518-WYZ021-201400-
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-
759 PM MST Mon Nov 19 2018

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

.DAY ONE...Tonight

A hard freeze is forecast for Dixie including St George.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

High pressure across the outlook area will maintain dry
conditions and mostly seasonal temperatures through Wednesday.

An active weather pattern will begin on Thanksgiving Day. A
weather disturbance will move east from the Pacific, reaching
Utah by early in the morning. Mountain snow, with rain and snow in
the valleys, will focus on the daytime through early evening
hours. Accumulating snows are expected across mainly the northern
mountains, with light amounts possible across the higher northern
valleys and in extreme southwest Wyoming.

A second stronger and colder storm will come from the northwest
and reach the outlook area for Friday and Saturday. For Friday,
precipitation will concentrate across the northern third of Utah
and southwest Wyoming. Moderate to heavy rain and snow are
expected, with significant accumulations of snow possible across
the northern Wasatch range. Precipitation will spread south as
the main portion of the storm crosses the area Friday night
through Saturday. Snow levels will lower to most valley floor
elevations by early Saturday. Heavy snow is possible over the
southern Wasatch range and through the central mountains.
Accumulating snows are expected in the valleys of northern and
western Utah and through southwest Wyoming.

Mostly dry and cold conditions are expected Sunday in the wake of
the Saturday storm. Areas of fog are possible across the northern
and western valleys Sunday morning.

.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

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1038 AM MST Mon Nov 19 2018

COZ030>051-201745-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1038 AM MST Mon Nov 19 2018

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

No hazardous weather expected.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Across the northeast plains it will be dry and warm through
Friday, with temperatures at or above seasonal normals. In the
mountains, it will be dry until mid-week, with a chance of snow
developing Thursday into Friday. For the weekend, it will be
cooler with a chance of rain changing to snow Saturday midday
Saturday spreading across the northeast plains through midnight
Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

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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