National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Special Weather Statement

Special Weather Statement
National Weather Service Riverton WY
104 PM MDT Thu Mar 30 2017

Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
104 PM MDT Thu Mar 30 2017

A cold rain is expected to develop across much of the area tonight
and continue through Friday. Some of the higher elevations near
the foothills and above 5000 to 5500 feet may change over to snow
on Friday. All areas will likely see a period of snow Friday
evening. Snowfall amounts are still uncertain but early indications
point to 1 to 4 inches with locally higher in the southern part
of the county near the mountains. The rain and snow will be driven
by north winds of 20 to 35 mph at times. Liquid precipitation
totals of one half to three quarters of an inch are expected.


Special Weather Statement
National Weather Service Riverton WY
104 PM MDT Thu Mar 30 2017

Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
104 PM MDT Thu Mar 30 2017

A large storm system will impact the area from tonight through
Friday night. The most challenging aspect of this storm are the
temperature and snow levels. The Casper area looks like it will
stay rain during the day Friday with a changeover to snow late
Friday afternoon or early evening before ending by morning. Casper
Mountain will likely see mostly snow with 4 to 6 inches possible.
Another area of potentially heavy snow Friday into Friday evening
will be in western Natrona County including Hiland, Waltman and
Natrona where 4 to 6 inches could fall. The Casper area may see 1
to 3 inches mostly late Friday afternoon and evening. Strong
northeast wind gusts of 30 to 40 mph are possible in open or
exposed areas.

Stay tuned for frequent updates on this developing storm system.


Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Billings MT
1253 PM MDT Thu Mar 30 2017

Southern Wheatland-Musselshell-Treasure-Northern Rosebud-Custer-
Fallon-Northern Stillwater-Yellowstone-Powder River-Carter-
Southern Big Horn-Eastern Carbon-Northern Park-
Northern Sweet Grass-Golden Valley-Red Lodge Foothills-
Northern Big Horn-Southern Rosebud-Judith Gap-Paradise Valley-
Livingston Area-Beartooth Foothills-Absaroka/Beartooth Mountains-
Crazy Mountains-Northeast Bighorn Mountains-Sheridan Foothills-
1253 PM MDT Thu Mar 30 2017

This Hazardous Weather Outlook is for portions of central
Montana...south central Montana...southeast Montana and north
central Wyoming.

* Outlook: A storm system moving through the central Rockies wil
  produce widespread precipitation across our region Today and
  Friday. Heaviest precipitation will likely occur along the
  southern mountains and foothills. Mountains could see heavy
  snowfall, especially along north facing slopes.

* Potential Impacts: Recreation in the high country may become
  difficult due to heavy snowfall. Hazardous travel conditions are
  possible on Highway 14 through the Bighorn Mountains.


A Hazardous Weather Outlook is issued when hazardous weather could
impact the region within the next week. Be sure to stay tuned for
future updates as locations, timing, and impacts could change.
Begin preparations to mitigate any impacts that could result from
the hazardous weather.


Hazardous Weather Outlook
National Weather Service Riverton WY
1231 PM MDT Thu Mar 30 2017

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-
1231 PM MDT Thu Mar 30 2017

...Blizzard Warning for the Wind River Mountains later this
evening through Friday night...
...Winter Storm Warning for the Green/Rattlesnake Ranges and
Lander Foothills late tonight through Friday night...
...Winter Weather Advisories for the Big Horn Mountains...Owl
Creeks...Bridger Mountains and Absarokas from midnight tonight
through midnight Friday night...
...Winter Weather Advisory for the Wind River Basin from 3 am
Friday through 3 am Saturday...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight

Snow continuing across the western mountains...with the heaviest
snowfall expected above 7500 feet.

Snow will develop in areas East of the Divide later tonight above
5000 to 6000 feet. Please see the latest winter weather statement
for details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Friday and Friday evening...Heavy snow possible...mainly above
5500 feet East of the Divide with a mix of rain and snow
elsewhere. Please see Winter Weather Products and forecasts for

Friday...Strong to high winds are possible across Sweetwater and
eastern Fremont Counties.


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


Team Riverton

Hazardous Weather Outlook
National Weather Service Cheyenne WY
342 AM MDT Thu Mar 30 2017

Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen 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-East Laramie County-
342 AM MDT Thu Mar 30 2017

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


A strong Pacific low pressure system will bring widespread
precipitation to the area starting late this afternoon. Snow is
expected tonight mainly above 7000ft with rain in the lower
elevations of southeast Wyoming.


Widespread precipitation will continue through Saturday morning.
Accumulating snow is likely in the higher elevations, with roughly
3 to 6 inches possible in the Snowy Range and Laramie Ranges.
Snow may occur down to about 5000ft as well, but accumulations
will be less. Another storm system will track across the region
late Monday through Tuesday.

.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
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE