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Accidents and Incidents Report

Yellowstone National Park Forecast

FPUS55 KRIW 222135
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
233 PM MST Thu Feb 22 2018

WYZ020-231100-
Natrona County Lower Elevations-
WYZ001-231100-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
233 PM MST Thu Feb 22 2018

.LATE THIS AFTERNOON...Partly cloudy. Slight chance of snow early
in the evening, then chance of snow showers early in the evening.
Highs 13 to 19. Chance of snow 30 percent. 
.TONIGHT...Partly cloudy with a 30 percent chance of snow
showers. Lows 1 below to 7 below zero. 
.FRIDAY...Partly cloudy with a 30 percent chance of snow showers.
Highs 15 to 21. West winds around 15 mph late in the afternoon. 
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow
showers. Lows 3 below to 3 above zero. Southwest winds around
15 mph. 
.SATURDAY...Breezy. Snow showers likely. Patchy blowing snow in
the afternoon. Snow accumulation of 1 to 2 inches. Highs 13 to
19. Southwest winds 15 to 20 mph. Chance of snow 60 percent.
Lowest wind chill readings 10 below to 20 below zero in the
morning. 
.SATURDAY NIGHT...Patchy blowing snow in the evening. Cloudy with
snow showers likely. Snow accumulation around 2 inches. Total
snow accumulation 3 to 4 inches. Lows 1 below to 5 above zero.
Southwest winds around 15 mph in the evening. Chance of snow
60 percent. 
.SUNDAY...Cloudy with a 40 percent chance of snow. Patchy blowing
snow in the afternoon. Highs 14 to 20. Wind chill readings
12 below to 22 below zero. 
.SUNDAY NIGHT...Breezy. Snow likely. Lows 6 to 12. Chance of snow
60 percent. 
.MONDAY...Breezy. Snow likely. Highs 19 to 25. Chance of snow
70 percent. 
.MONDAY NIGHT...Cloudy with a 40 percent chance of snow. Lows
5 to 11. 
.TUESDAY...Mostly cloudy with a 30 percent chance of snow. Highs
20 to 26. 
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of snow.
Lows 1 to 7. 
.WEDNESDAY...Mostly cloudy with a 20 percent chance of snow.
Highs 18 to 24. 
.WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming
partly cloudy. A 20 percent chance of snow. Lows 2 to 8. 
.THURSDAY...Mostly cloudy with a 20 percent chance of snow. Highs
20 to 26. 

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