Watches, Warnings & Advisories



3 products issued by NWS for: Old Faithful WY

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Riverton WY
131 AM MST Sat Feb 15 2025

WYZ001>020-022>030-161400-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn 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-
131 AM MST Sat Feb 15 2025

...Winter Storm Warnings and Winter Weather Advisories for the
western mountains this morning...

...Winter Storm Watches for Western Wyoming from Sunday morning
through Monday night...

This Hazardous Weather Outlook is for Western and Central Wyoming.

.DAY ONE...Today and Tonight.

Periods of snow ending in western Wyoming. Periods of light snow
across areas East of the Divide.

Locally strong wind in Sweetwater County, especially this
afternoon.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday through Tuesday...Moderate to heavy snow likely for western
Wyoming. Please see Winter Storm Watches and forecasts for
details.

Some snow possible across northern Wyoming but amounts and
southern extent remain uncertain at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.

$$




Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
119 AM MST Sat Feb 15 2025

WYZ001-151800-
/O.NEW.KRIW.WS.A.0003.250216T1200Z-250218T1200Z/
/O.CON.KRIW.WW.Y.0009.000000T0000Z-250215T1800Z/
Yellowstone National Park-
Including the cities of Old Faithful, Mammoth, and Lake
119 AM MST Sat Feb 15 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of 1 to 3 inches. For the Winter Storm Watch, heavy
  snow possible. Total snow accumulations between 12 and 20 inches
  in southwestern portions of the Park; 4 to 8 inches elsewhere.

* WHERE...Yellowstone National Park.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from late tonight through
  late Monday night.

* IMPACTS...Travel will be very difficult, especially in the
  backcountry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

Slow down and use caution while traveling.

&&

$$



Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
119 AM MST Sat Feb 15 2025

WYZ001-151800-
/O.NEW.KRIW.WS.A.0003.250216T1200Z-250218T1200Z/
/O.CON.KRIW.WW.Y.0009.000000T0000Z-250215T1800Z/
Yellowstone National Park-
Including the cities of Old Faithful, Mammoth, and Lake
119 AM MST Sat Feb 15 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

* WHAT...For the Winter Weather Advisory, snow. Additional snow
  accumulations of 1 to 3 inches. For the Winter Storm Watch, heavy
  snow possible. Total snow accumulations between 12 and 20 inches
  in southwestern portions of the Park; 4 to 8 inches elsewhere.

* WHERE...Yellowstone National Park.

* WHEN...For the Winter Weather Advisory, until 11 AM MST this
  morning. For the Winter Storm Watch, from late tonight through
  late Monday night.

* IMPACTS...Travel will be very difficult, especially in the
  backcountry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .

Slow down and use caution while traveling.

&&

$$