Daily Winter Weather Report
Tuesday - December 22, 2009
| Station | Max Temp | Min Temp | Pres Temp | New Snow | Snow Depth | OC | BC | SC | Present Conditions |
| Canyon | 29 | 17 | 17 | 1 | 22 | X | Calm | ||
| East Entrance | 34 | 12 | 18 | Trace | 15 | X | Calm | ||
| Grant Village | 41 | 13 | 17 | 9 | 22 | X | |||
| Lake | 23 | 12 | 18 | ||||||
| 26 | 18 | 26 | |||||||
| Madison | 25 | 15 | 19 | ||||||
| Mammoth | 35 | 27 | 28 | ||||||
| Old Faithful | 26 | 14 | 16 | ||||||
| Snake River | 31 | 15 | 18 | Trace | 22 | X | Lt Snow / Calm | ||
| Tower | 30 | 20 | 21 | ||||||
| West Entrance | 31 | 15 | 18 | Trace | 15 | X | Calm |
| Yellowstone National Park WebCams | |||||||
|---|---|---|---|---|---|---|---|
| Old Faithful Live | All Old Faithful | Old Faithful Static | Old Faithful VC | North Entrance | Mt Washburn | Mammoth | YVO WebCam |
AVALANCHE DANGER
The avalanche danger is rated HIGH on all wind-loaded slopes with human triggered avalanches being probable. All other slopes have a CONSIDERABLE avalanche danger.
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Yellowstone National Park Weather Forecast on 22 December 2009 by the NWS Riverton, WY Early This Morning ... Snow likely. New snow accumulation up to 1 inch. Lows 15°F to 21°F. South winds around 15 mph. Chance of snow 70 percent. Today ... Cloudy. Snow likely in the morning ... then chance of snow in the afternoon. Snow accumulation of 1 to 2 inches. Total snow accumulation 1 to 5 inches. Highs 21°F to 27°F. Chance of snow 60 percent. Tonight ... Colder. Cloudy with a 50 percent chance of snow. Lows 7°F to 13°F. Wednesday ... Snow likely. Snow accumulation of 2 to 3 inches. Highs 13°F to 19°F. Chance of snow 70 percent. Wednesday Night ... Colder. Cloudy with a 20 percent chance of snow. Lows -6°F to 0°F. Thursday ... Mostly cloudy with a 20 percent chance of snow. Highs 7°F to 13°F. Thursday Night ... Partly cloudy. Lows -6°F to 0°F. Christmas Day ... Partly cloudy. Highs 12°F to 18°F. Wind chill readings -10°F to -20°F. Friday Night ... Partly cloudy. Lows -1°F to -9°F. Saturday ... Partly cloudy. Highs 17°F to 23°F. Saturday Night ... Partly cloudy. Lows -4°F to 2°F. Sunday ... Partly cloudy. Highs 19°F to 25°F. Sunday Night ... Partly cloudy. Lows -6°F to 0°F. Monday ... Partly cloudy. Highs 19°F to 25°F.
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******** FOR CURRENT ROAD INFORMATION PLEASE CALL 307-344-2117********
Tuesday - December 22, 2009
| Road | Date Open | Admin Travel | Public Access |
| Gardiner to Mammoth | YEAR ROUND | STA | |
| 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 | OPEN | FAIR | |
| 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 | 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
