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Accidents and Incidents Report

Yellowstone National Park Forecast

FPUS55 KRIW 171721

Zone Forecast Product for Western and Central Wyoming
National Weather Service Riverton WY
1119 AM MDT Tue Oct 17 2017

Natrona County Lower Elevations-
Yellowstone National Park-
Including the cities of Lake, Mammoth, and Old Faithful
1120 AM MDT Tue Oct 17 2017

.REST OF TODAY...Breezy. Mostly sunny. Highs 49 to 55.
Temperatures falling into the lower 30s in the afternoon.
Southwest winds 15 to 20 mph. 
.TONIGHT...Mostly clear. Lows 23 to 29. Southwest winds around
15 mph. 
.WEDNESDAY...Breezy. Mostly sunny. Highs 47 to 53. Southwest
winds 15 to 20 mph. 
.WEDNESDAY NIGHT...Partly cloudy in the evening then clearing.
Lows 25 to 31. Southwest winds around 15 mph in the evening. 
.THURSDAY...Breezy, sunny. Highs 52 to 58. Southwest winds 15 to
20 mph in the afternoon. 
.THURSDAY NIGHT...Mostly clear. Lows 27 to 33. 
.FRIDAY...Breezy. Partly cloudy with chance of rain and snow in
the morning, then cloudy with rain and snow likely in the
afternoon. Highs 42 to 48. Chance of precipitation 60 percent. 
.FRIDAY NIGHT...Cloudy. Snow likely in the evening, then chance
of snow after midnight. Lows 21 to 27. Chance of snow 60 percent.
.SATURDAY...Mostly cloudy in the morning then becoming partly
cloudy. A 30 percent chance of snow. Highs 31 to 37. 
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of snow.
Lows 22 to 28. 
.SUNDAY...Mostly cloudy. Chance of snow in the morning, then
chance of rain and snow in the afternoon. Highs 38 to 44. Chance
of precipitation 40 percent. 
.SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain,
possibly mixed with snow in the evening, then partly cloudy after
midnight. Lows 25 to 31. 
.MONDAY...Partly cloudy in the morning, then mostly cloudy with a
20 percent chance of rain in the afternoon. Highs 40 to 46.