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Accidents and Incidents Report

Yellowstone National Park Forecast

FPUS55 KRIW 221420
ZFPRIW

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
819 AM MDT Fri Sep 22 2017

WYZ020-222200-
Natrona County Lower Elevations-
WYZ001-222200-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
819 AM MDT Fri Sep 22 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

.TODAY...Snow showers. Rain showers likely late in the morning,
then chance of snow showers, possibly mixed with rain showers
late in the afternoon. Snow accumulation of 1 to 2 inches. Total
snow accumulation 2 to 6 inches. Highs 33 to 39. Chance of
precipitation 80 percent. 
.TONIGHT...Mostly cloudy. Chance of snow showers, possibly mixed
with rain showers early in the evening, then chance of snow
showers in the late evening and overnight. Little or no snow
accumulation. Lows 20 to 26. Chance of precipitation 50 percent. 
.SATURDAY...Mostly cloudy. Chance of rain showers in the
afternoon. Highs 36 to 42. Chance of showers 30 percent. 
.SATURDAY NIGHT...Mostly cloudy. Chance of snow showers, possibly
mixed with rain showers in the evening, then chance of snow
showers after midnight. Lows 21 to 27. Chance of precipitation
30 percent. 
.SUNDAY...Mostly cloudy. Chance of snow showers in the morning,
then chance ofrain showers in the afternoon. Highs 37 to 43.
Chance of precipitation 30 percent. 
.SUNDAY NIGHT...Mostly cloudy. Chance of snow showers, possibly
mixed with rain showers in the evening. Lows 22 to 28. Chance of
precipitation 30 percent. 
.MONDAY...Mostly cloudy in the morning, then partly cloudy in the
afternoon. Highs 39 to 45. 
.MONDAY NIGHT...Partly cloudy. Lows 21 to 27. 
.TUESDAY...Partly cloudy in the morning, then mostly cloudy with
a 20 percent chance of rain showers in the afternoon. Highs 41 to
47. 
.TUESDAY NIGHT...Mostly cloudy. Slight chance of rain showers and
snow showers in the evening, then slight chance of snow showers
after midnight. Lows 25 to 31. Chance of precipitation
20 percent. 
.WEDNESDAY...Partly cloudy. Highs 44 to 50. 
.WEDNESDAY NIGHT...Partly cloudy in the evening then clearing.
Lows 24 to 30. 
.THURSDAY...Mostly sunny. Highs 48 to 54. 

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