Montana Department of Transportation

Main Content

Accidents and Incidents Report

Yellowstone National Park Forecast

FPUS55 KRIW 222138

ZFPRIW

FPUS55 KRIW 222136

ZFPRIW



Zone Forecast Product for Western and Central Wyoming

National Weather Service Riverton WY

236 PM MST Fri Feb 22 2019



WYZ001-231100-

Yellowstone National Park-

Including the cities of Lake, Mammoth, and Old Faithful

236 PM MST Fri Feb 22 2019



...WINTER STORM WATCH IN EFFECT FROM SATURDAY EVENING THROUGH

TUESDAY AFTERNOON...



.LATE THIS AFTERNOON...Mostly sunny. Highs 14 to 20. 

.TONIGHT...Partly cloudy, then cloudy with a 30 percent chance of

snow early in the morning. Lows 6 below to zero. 

.SATURDAY...Snow. Patchy fog early in the morning. Patchy blowing

snow in the late morning and afternoon. Snow accumulation of 1 to

2 inches. Highs 12 to 18. Southwest winds around 15 mph. Chance

of snow 90 percent. 

.SATURDAY NIGHT...Patchy blowing snow in the evening. Snow until

early morning, then snow showers early in the morning. Snow

accumulation of 2 to 4 inches. Near steady temperature around 10.

Southwest winds around 15 mph until early morning. Chance of snow

near 100 percent. 

.SUNDAY...Breezy. Snow showers. Areas of blowing snow. Snow

accumulation of 2 to 5 inches. Highs 18 to 24. Southwest winds

15 to 25 mph. Chance of snow 90 percent. 

.SUNDAY NIGHT...Breezy. Snow showers. Areas of blowing snow. Snow

accumulation of 4 to 6 inches. Lows 12 to 18. Southwest winds

15 to 25 mph. Chance of snow 90 percent. 

.MONDAY...Breezy. Snow showers. Areas of blowing snow. Moderate

snow accumulations. Highs 22 to 28. Chance of snow 80 percent. 

.MONDAY NIGHT...Breezy. Snow showers. Patchy blowing snow. Heavy

snow accumulations. Lows 17 to 23. Chance of snow 80 percent. 

.TUESDAY...Breezy. Snow showers likely. Patchy blowing snow.

Heavy snow accumulations. Highs 26 to 32. Chance of snow

70 percent. 

.TUESDAY NIGHT...Cloudy with a 50 percent chance of snow showers.

Light snow accumulations. Lows 15 to 21. 

.WEDNESDAY...Cloudy with a 30 percent chance of snow showers.

Highs 27 to 33. 

.WEDNESDAY NIGHT...Cloudy with a 40 percent chance of snow

showers. Lows 16 to 22. 

.THURSDAY...Breezy. Cloudy with a 40 percent chance of snow

showers. Highs 27 to 33. 

.THURSDAY NIGHT...Patchy blowing snow in the evening. Cloudy with

a 30 percent chance of snow showers. Lows 10 to 16. 

.FRIDAY...Cloudy with a 30 percent chance of snow showers. Highs

23 to 29. 



--------------------------------