Daily Winter Weather Report
Friday - December 18, 2009
| Station | Max Temp | Min Temp | Pres Temp | New Snow | Snow Depth | OC | BC | SC | Present Conditions |
| Canyon | 31 | 16 | 16 | Trace | 23 | X | Calm | ||
| East Entrance | 33 | -1 | 0 | 1 | 16 | Clear and calm | |||
| Grant Village | |||||||||
| Lake | 35 | 12 | 14 | .25 | 15 | X | Calm | ||
| Madison | 34 | 16 | 22 | Trace | 10.5 | X | Calm | ||
| Mammoth | |||||||||
| Old Faithful | 32 | -3.5 | 12 | Trace | 16 | X | Calm | ||
| Snake River | 31 | 13 | 13 | 1 | 22 | X | Calm | ||
| Tower | |||||||||
| West Entrance |
| 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 any slope with wind deposited snow or any slope steeper than 35 degrees. All other slopes have a CONSIDERABLE avalanche danger.
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Yellowstone National Park Weather Forecast for 18 December 2009 by the NWS Riverton, WY Today ... Partly cloudy. Highs 23°F to 29°F. Lows 9°F to 17°F. Tonight ... Partly cloudy with a 20% chance of snow. Lows 9°F to 15°F. Southwest winds around 15 mph late in the night. Saturday ... Mostly cloudy. Slight chance of snow in the morning. Then chance of snow in the afternoon. Highs 24°F to 30°F. Southwest winds around 15 mph. Chance of snow 30%. Saturday Night ... Cloudy with a 50% chance of snow. Lows 15°F to 21°F. Southwest winds around 15 mph. Sunday ... Snow likely. Snow accumulation of 3 to 4 inches. Highs 25°F to 31°F. Southwest winds around 15 mph. Chance of snow 70%. Sunday Night ... Breezy. Snow likely. Snow accumulation of 2 to 3 inches. Lows 17°F to 23°F. Southwest winds 15 to 20 mph. Chance of snow 70%. Monday ... Breezy. Snow likely. Moderate snow accumulations. Highs 25°F to 31°F. Chance of snow 70%. Monday Night ... Snow likely. Moderate snow accumulations. Lows 16°F to 22°F. Chance of snow 60%. Tuesday ... Cloudy with a 50% chance of snow. Highs 20°F to 26°F. Tuesday Night ... Colder. Mostly cloudy with a 20% chance of snow. Lows 1°F to 7°F. Wednesday ... Mostly cloudy with a 40% chance of snow. Highs 12°F to 18°F. Wednesday Night ... Mostly cloudy with a 30% chance of snow. Lows -3°F to 3°F. Thursday ... Mostly cloudy with a 30% chance of snow. Highs 14°F to 20°F. Thursday Night ... Mostly cloudy with a 20% chance of snow. Lows 2°F to 8°F. Christmas Day ... Mostly cloudy with a 20% chance of snow. Highs 16°F to 22°F. |
******** FOR CURRENT ROAD INFORMATION PLEASE CALL 307-344-2117********
Friday - December 18, 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 | YES | 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
