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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Riverton WY
207 AM MDT Thu Mar 23 2017

WYZ001>020-022>030-241100-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Big Horn Basin-Southwest Big Horn Basin-
Southeast Big Horn Basin-Owl Creek and Bridger Mountains-
Bighorn Mountains West-Bighorn Mountains Southeast-
Northeast Johnson County-Southeast Johnson County-
Teton and Gros Ventre Mountains-Jackson Hole-
Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
207 AM MDT Thu Mar 23 2017

...AREAL FLOOD WARNING IN EFFECT UNTIL FRIDAY MORNING FOR LINCOLN
COUNTY...

...FLOOD WATCH IN EFFECT FOR PORTIONS OF WESTERN WYOMING THROUGH
EARLY AFTERNOON...

...WINTER WEATHER ADVISORY FOR THE WIND RIVER...BIGHORN...AND
GREEN AND RATTLESNAKE MOUNTAINS AND FOOTHILLS THROUGH THIS
EVENING...


This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Some flooding may occur along creeks, streams, and low-lying
areas across western and southwest Wyoming below 7500 feet. Please
see Flood Watch and Warning for details.

Significant snowfall may occur across portions of the central and
northern Wyoming above 6500 feet. Please see Winter Weather
Advisories for details.

Isolated afternoon thunderstorms possible across portions of
southern Wyoming.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Minor flooding continues possible due to snowmelt and additional
rain and snowfall through Thursday along creeks, streams, and
low-lying areas across western and southwest Wyoming below 7500
feet.

Saturday and Sunday...The next Pacific storm system will spread
precipitation into the west on Saturday in the form of mountain
snow showers and a mix of rain and snow showers in the valleys.
Mountain passes will likely become slick or slushy with snowfall
Saturday across the west. A cold front will plunge south across
central Wyoming Saturday night with areas of light snow possible.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report flooding or other significant
weather. Thank you!

$$

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1111 AM MDT Thu Mar 23 2017

COZ030>051-241715-
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-
1111 AM MDT Thu Mar 23 2017

......Red Flag Warning for critical fire weather conditions this
afternoon for the southern foothills and much of the Northeast
Plains of Colorado...

...Potential for Blizzard conditions on the Palmer Divide and
portions of the Northeast plains for later tonight and Friday
morning.

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

Strong southwesterly winds combined with low humidity will bring
critical fire weather conditions along the southern foothills and
northeast plains this afternoon.  Rain and snow showers will
develop in the mountains late this afternoon.

There is the potential for an isolated severe thunderstorm over
the far northeast plains, mainly over Phillips and Sedgwick
counties later this afternoon and evening. Damaging winds and
hail would be the main impacts.

For tonight, a storm system is expected to track slowly across
Colorado. This system will bring much needed precipitation to the
region. Moderate to heavy snow will be possible in the mountains
foothills along and south of the Interstate 70 Corridor and
over the Palmer Divide above 5500 feet, with widespread rain or a
mix of rain and snow over the northeast plains. The combination
of strong winds and snow could produce blizzard conditions late
tonight I-25 south of Denver toward Monument and I-70 east of
Denver to just west of Limon.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

On Friday a storm system will move slowly east of Colorado. This
system will bring snow to the mountains, foothills and across
portions of the adjacent plains. In addition strong winds will
occur over the plains of northeast Colorado which may create
blizzard conditions over the Palmer Divide eastward towards the
Limon area.

Additional accumulations will range from 4 to 8 inches in the
mountains and foothills with up to 6 inches over the Palmer
Divide. Across the adjacent plains 2 to 4 inches may fall around
the Denver area with up to 6 inches near Limon. Elsewhere snow
amounts will be under 2 inches. North winds of 25 to 40 mph with
gusts up to 55 mph will occur over the plains with gusts up to 65
mph over the Palmer Divide towards limon.

The snow and wind should gradually diminish through the afternoon
hours from west to east.

Dry and warmer weather will return on Saturday. The next weather system
could bring another chance of precipitation to the region on
Sunday, then drier again Sunday night into Monday.


.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT but snow
and wind reports would be greatly appreciated tonight and Friday.

$$

Hazardous Weather Outlook
National Weather Service Salt Lake City UT
618 AM MDT Thu Mar 23 2017

UTZ001>016-019>021-517-518-WYZ021-241300-
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-
618 AM MDT Thu Mar 23 2017

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

.DAY ONE...Today and Tonight

Accumulating snow is expected above around 6000-6500 feet today.
Winter driving conditions can be expected across all high
elevations roadways above around 7000 feet.

A combination of rain and snow melt will cause rivers across
northern Utah to run swift and cold. Use extreme caution near
these waterways, and be particularly mindful of children and
pets.

Gusty northwest winds are possible for portions of the west
desert today and across the western Uinta Basin and Castle
Country tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Another cool and wet storm is expected on Saturday and again
during the first half of next week.

.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 Rapid City SD
554 AM MDT Thu Mar 23 2017

SDZ024-028-029-WYZ057-241300-
Northern Black Hills-Central Black Hills-Southern Black Hills-
Wyoming Black Hills-
554 AM MDT Thu Mar 23 2017

This Hazardous weather outlook is for portions of the Black Hills
of South Dakota...and the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

Rain could mix or change over to light snow tonight across the
Black Hills and Bear Lodge Mountains, especially the higher
elevations. Any accumulations should be light, mostly an inch or
less.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

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 Cheyenne WY
443 AM MDT Thu Mar 23 2017

NEZ002-003-019>021-054-055-095-096-WYZ101-102-107-108-119-241045-
Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne-
North Sioux-South Sioux-Converse County Lower Elevations-
Niobrara County-East Platte County-Goshen County-
East Laramie County-
443 AM MDT Thu Mar 23 2017

This hazardous weather outlook is for portions of western
Nebraska...east central Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Isolated thunderstorms will be possible this afternoon. No severe
storms are expected.

A strong storm system will move through Colorado through Friday
morning. This system will bring colder temperatures, widespread
rain and snow, along with gusty north winds this evening through
Friday morning. At this time, snowfall accumulations below 6000 ft
are expected to be light, generally less than one to two inches.
Some impacts to travel due to falling and blowing snow will be
possible.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The probability for widespread hazardous weather is low.

.Spotter information statement...

Spotter activation will not be required.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
443 AM MDT Thu Mar 23 2017

WYZ103>106-109>118-241045-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
Central Carbon County-North Snowy Range Foothills-
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Snowy Range-Laramie Valley-
South Laramie Range-South Laramie Range Foothills-
Central Laramie County-
443 AM MDT Thu Mar 23 2017

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Isolated thunderstorms will be possible this afternoon. No severe
storms are expected.

A strong storm system will move through Colorado through Friday
morning. This system will bring colder temperatures, widespread
rain and snow, along with gusty north winds late this afternoon
through Friday morning. At this time, snowfall accumulations of
one to four inches look possible from Arlington to Cheyenne. A
Winter Storm Watch is in effect for the southern Laramie Range and
adjacent foothills. Hazardous travel conditions will occur across
southeast Wyoming, and especially along Interstate 80 between
Laramie and Cheyenne, due to the combination of falling and
blowing snow.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The probability for widespread hazardous weather is low.

.Spotter information statement...

Spotter activation will not be required.

$$

Hazardous Weather Outlook
National Weather Service Grand Junction CO
308 AM MDT Thu Mar 23 2017

COZ001>014-017>023-UTZ022>025-027>029-240915-
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-
308 AM MDT Thu Mar 23 2017

This hazardous weather outlook is for eastern Utah and western
Colorado.

.DAY ONE...Today and Tonight

A strong Pacific storm will bring increasing valley rain and
mountain snow mainly above 8000 feet. Isolated to scattered
thunderstorms are likely ahead of and along a strong cold front
that will move through late this afternoon and evening. The best
chance of precipitation will occur over eastern Utah this morning
and spread eastward across western Colorado this afternoon and
evening. There is potential for hazardous winter driving
conditions over the high mountain passes.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Friday and Saturday...Precipitation will decrease from west to
east around midnight on Friday with scattered rain and snow
showers ending in the Colorado mountains Friday morning. Saturday
should be drier but becoming breezy.

Sunday and Tuesday...Another series of Pacific storm systems will
move through the area bringing a continued potential for more
winter weather and hazardous driving conditions over the mountain
passes.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

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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