Daily Winter Weather Report
Sunday - December 20, 2009
| Station | Max Temp | Min Temp | Pres Temp | New Snow | Snow Depth | OC | BC | SC | Present Conditions |
| Canyon | 24 | 6 | 14 | Trace | 22 | X | Calm | ||
| East Entrance | 29 | 14 | 28 | Trace | 16 | X | Calm | ||
| Grant Village | 24 | 15 | 23 | 0 | 25 | X | Calm | ||
| Lake | 25 | 17 | 24 | .5 | 14 | X | Calm | ||
| Madison | 33 | 12 | 28 | 0 | 10 | X | Calm | ||
| Mammoth | 29 | 27 | 31 | 0 | 1 | X | SE @ 3 | ||
| Old Faithful | |||||||||
| Snake River | 25 | 13 | 24 | 0 | 20 | X | Calm | ||
| Tower | |||||||||
| West Entrance | 26 | 22 | 26 | 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 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 20 December 2009 by the NWS Riverton, WY Today ... Breezy. Snow likely. Snow accumulation around 2 inches. Highs 26°F to 32°F. Southwest winds 15 to 25 mph. Chance of snow 70%. Tonight ... Breezy. Snow likely. Snow accumulation around 2 to 3 inches. Lows 19°F to 25°F. Southwest winds 15 to 20 mph. Chance of snow 70%. Monday ... Breezy. Snow in the morning...then snow likely in the afternoon. Snow accumulation of 3 to 4 inches. Highs 25°F to 31°F. Southwest winds 15 to 20 mph. Chance of snow 80%. Monday Night ... Breezy. Snow likely. Snow accumulation of 1 to 3 inches. Lows 15°F to 21°F. Chance of snow 70%. Tuesday ... Cloudy with snow likely. Snow accumulation of 1 to 2 inches. Total snow accumulation 9 to 15 inches. Highs 22°F to 28°F. Southwest winds 15 mph in the morning. Chance of snow 70%. Tuesday Night ... Colder. Mostly cloudy with a 20% chance of snow. Lows 5°F to 11°F. Wednesday ... Cloudy with a 40% chance of snow. Highs 13°F to 19°F. Wednesday Night ... Colder. Mostly cloudy with a 20% chance of snow. Lows -2°F to 4°F. Thursday ... Partly cloudy with a 30% chance of snow. Highs 10°F to 16°F. Thursday Night ... Partly cloudy with a 20% chance of snow. Lows -2°F to 4°F. Christmas Day ... Partly cloudy with a 20% chance of snow. Highs 9°F to 15°F. Friday Night ... Partly cloudy with a 20% chance of snow. Lows -4°F to 2°F. Saturday ... Not as cold. Partly cloudy with a 20% chance of snow. Highs 20°F to 26°F.
|
******** FOR CURRENT ROAD INFORMATION PLEASE CALL 307-344-2117********
Sunday - December 20, 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 | 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 oversnow vehicles | Rubber Tracked Only |
| Norris to Canyon | OPEN | YES | Fair |
| 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
Back to the Yellowstone Daily Winter Reports or the Yellowstone Weather Page
For an Adobe PDF version, Click Here
Information provided by the National Weather Service and Yellowstone National Park Service
