Daily Winter Weather Report
Thursday, December 17, 2009
| Station | Max Temp | Min Temp | Pres Temp | New Snow | Snow Depth | OC | BC | SC | Present Conditions |
| Canyon | 30 | 2 | 25 | 4 | 24 | X | Calm | ||
| East Entrance | |||||||||
| Grant Village | 24 | X | Cloudy | ||||||
| Lake | 30 | 20 | 23 | 2 | 16 | X | Light snow | ||
| Madison | 34 | 24 | 24 | 2 | 11 | X | Calm | ||
| Mammoth | |||||||||
| Old Faithful | 33 | 19 | 26 | 3 | 18 | X | Light snow, calm | ||
| Snake River | 39 | 26 | 28 | 5 | 24 | X | Light snow | ||
| Tower | |||||||||
| West Entrance |
SPECIAL INFORMATION
The East Entrance is CLOSED to all travel including admin.
AVALANCHE DANGER
The avalanche danger is rated HIGH on any slope with wind deposited snow or any slope steeper than 35 degrees. All other slopes have a CONSIDERABLE avalanche danger.
Yellowstone National Park Weather Forecast on 17 December 2009 by the NWS Riverton, WY
Today: Snow showers likely, mainly before 11:00 am. Cloudy, with a high near 37°F and a low around 19°F.
Friday: Mostly sunny, with a high near 30°F and a low around 20°F.
Saturday: A 20 percent chance of snow. Mostly cloudy, with a high near 32°F and a low around 19°F.
Sunday: A 20 percent chance of snow. Mostly cloudy, with a high near 31°F and a low around 24°F.
Monday: A 20 percent chance of snow. Mostly cloudy, with a high near 35°F and a low around 23°F.
Tuesday: A chance of snow. Mostly cloudy, with a high near 30°F and a low around 21°F.
Wednesday: A chance of snow. Mostly cloudy, with a high near 25°F.
******** FOR CURRENT ROAD INFORMATION PLEASE CALL 307-344-2117********
Thursday, December 17, 2009
| Road | Date Open | Admin Travel | Public Access |
| Gardiner to Mammoth | YEAR ROUND | NR | |
| Mammoth to Tower | YEAR ROUND | STR | |
| Tower to NE Entrance | YEAR ROUND | STR | |
| Beartooth Highway | CLOSED | NO | CLOSED |
| Blacktail | CLOSED | NO | CLOSED |
| Canyon to Lake | OPEN | YES | Good |
| Firehole Lake Drive | CLOSED | NO | CLOSED |
| Grant to South Entrance | OPEN | YES | Good |
| Junction to Chief Joseph Hwy | CLOSED | NO | CLOSED |
| Lake to East Entrance | 12/22 | NO | CLOSED |
| Lake to West Thumb | OPEN | YES | Good |
| Madison to Old Faithful | OPEN | YES | Good |
| Madison to West Yellowstone | OPEN | YES | Good |
| Mammoth to Norris | 12/16 rubber tracked only | YES all oversnow vehicles | Rubber Tracked Only |
| Norris to Canyon | OPEN | YES | Good |
| Norris to Madison | OPEN | YES | |
| Old Faithful to Grant | OPEN | YES | Good |
| Tower to Canyon | CLOSED | CLOSED | CLOSED |
| Virginia Cascades | CLOSED | NO | CLOSED |
NR = No Restrictions ⁄ STA = Snow Tires Advised ⁄ STR = Snow Tires Required
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Information provided by the National Weather Service and Yellowstone National Park Service
