Wednesday - January 20, 2010
| Station | Max Temp | Min Temp | Pres Temp | New Snow | Snow Depth | OC | BC | SC | Present Conditions |
| Canyon | 26 | 0 | 0 | .5 | 25 | X | Calm | ||
| East Entrance | 33 | 0 | 0 | Trace | 18 | X | Calm | ||
| Grant Village | 30 | 10 | 1 | 1 | 27 | X | Calm | ||
| Lake | 30 | 1 | 4 | Trace | 21 | Clear / Calm | |||
| 37 | 3 | 3 | 0 | 11 | Clear / Calm | ||||
| Madison | 29 | 2 | 8 | Trace | 15 | X | Calm | ||
| Mammoth | 27 | 17 | 23 | .01 | SSE @ 7mph | ||||
| Old Faithful | 31 | -1 | 2 | Trace | 18 | X | Calm | ||
| Snake River | 32 | 8 | 8 | 1 | 26 | X | Calm | ||
| Tower | 20 | 6 | 13 | .01 | |||||
| West Entrance | 31 | 7 | 8 | .5 | 19 | 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 |
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AVALANCHE DANGER A CONSIDERABLE avalanche danger exists on all slopes greater than 35 degrees steepness. All other slopes have a MODERATE avalanche danger, but it's a pretty serious MODERATE. |
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Yellowstone National Park Weather Forecast on 20 January 2010 by the NWS Riverton, WY Today ... Mostly cloudy with a 20 percent chance of snow. Highs 24°F to 30°F. Tonight ... Mostly cloudy. Slight chance of snow in the evening... Then chance of snow after midnight. Lows 10°F to 16°F. South winds around 15 mph early in the morning. Chance of snow 30 percent. Thursday ... Cloudy with a 30 percent chance of snow. Highs 26°F to 32°F. South winds around 15 mph. Thursday Night ... Mostly cloudy with a 40 percent chance of snow. Lows 12°F to 18°F. Friday ... Snow likely. Snow accumulation of 2 to 4 inches. Highs 24°F to 30°F. Chance of snow 70 percent. Friday Night ... Cloudy with a 50 percent chance of snow. Lows 12°F to 18°F. Saturday ... Cloudy with a 50 percent chance of snow. Highs 20°F to 26°F. Saturday Night ... Cloudy with a 40 percent chance of snow. Lows 8°F to 14°F. Sunday ... Cloudy with a 20 percent chance of snow. Highs 18°F to 24°F. Sunday Night ... Mostly cloudy with a 20 percent chance of snow. Lows 3°F to 9°F. Monday ... Partly cloudy. Highs 20°F to 26°F. Monday Night ... Mostly cloudy. Lows 3°F to 11°F. Tuesday ... Mostly cloudy with a 20 percent chance of snow. Highs 24°F to 30°F.
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Wednesday - January 20, 2010
| 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 |
| Canyon to Lake | OPEN | YES | GOOD |
| Grant to South Entrance | OPEN | YES | GOOD |
| Junction to Chief Joseph Hwy | CLOSED | NO | CLOSED |
| Lake to East Entrance * | OPEN* | YES * | YES * |
| Lake to West Thumb | OPEN | YES | GOOD |
| Madison to Old Faithful | OPEN | YES | FAIR |
| Madison to West Yellowstone | OPEN | YES | GOOD |
| Mammoth to Norris # | Rubber Tracked Only # | YES # | Rubber Tracked Only # |
| Norris to Canyon | OPEN | YES | GOOD |
| Norris to Madison | OPEN | YES | FAIR |
| Old Faithful to Grant | OPEN | YES | GOOD |
| Tower to Canyon | CLOSED | CLOSED | CLOSED |
NR = No Restrictions ⁄ STA = Snow Tires Advised ⁄ STR = Snow Tires Required
* NOTE: "ALL" Sylvan Pass Travel (Lake to East Entrance) closes at 9:00 PM (2100 hours) nightly.
# Rubber Tracked Only to Indian Creek.
******** FOR CURRENT ROAD INFORMATION PLEASE CALL: 307-344-2117 ********
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Information provided by the National Weather Service and Yellowstone National Park Service
