Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Sunday
An upper level ridge will move over the area today leading to dry and eventually mostly sunny conditions across much of the region. Warmer air aloft will attempt to work inland over the mountains with mixed results. High pressure causes sinking motion and will trap some low clouds and cooler air for low and mid elevations across the north and central Cascades. Winds below crest level will be light and will not induce much mixing of the lower atmosphere. Higher freezing levels are forecast for the south Washington Cascades and Mt. Hood, where the layer of milder air between 6000-9000' is more pronounced. Even in areas with higher freezing levels, expect temperature inversions with cooler temperatures from mid-mountain down. Along the west slopes of the Cascades, low level clouds will give way to sunshine in the afternoon, especially south of Snoqualmie Pass. Mostly sunny conditions are expected along the east slopes of the Cascades and near Mt. Hood.
A frontal system will approach the region from the NW tonight. Generally light precipitation will reach the Olympic peninsula during the morning hours and spread to the Washington Cascades in the afternoon. Clouds will increase and lower during the day as snow levels begin to lower with the onset of precipitation.
Weather Forecast
Hurricane Ridge
| Wednesday | Partly to mostly sunny. Areas of valley fog in the morning. |
Mt. Baker
| Wednesday | Mostly cloudy in the morning, becoming partly sunny in the afternoon. |
Washington Pass and Leavenworth
| Wednesday | Partly cloudy in the morning, becoming mostly sunny in the afternoon. |
Stevens and Snoqualmie Pass
| Wednesday | Mostly cloudy with areas of low clouds in the morning becoming partly to mostly sunny in the afternoon. Light west wind at Pass level. |
Mt. Rainier, Crystal and White Pass
| Wednesday | Mostly cloudy with areas of low clouds in the morning becoming mostly sunny in the afternoon. Warmer upper slopes, cooler lower slopes in the afternoon. |
Mt. Hood
| Wednesday | Mostly sunny with areas of low clouds in the morning. Warmer upper slopes, cooler lower slopes in the afternoon. |
Issued: 7:00 AM PST Wednesday, February 12, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Morning | Freezing Level | 3500' | 2000' | 1500' | 1500' | 2000' | 2000' | 3000' | 4000' |
| Wednesday Afternoon | Freezing Level | 5500' | 3500' | 4000' | 4500' | 3500' | 3500' | 8500' | 9000' |
| Wednesday Evening | Freezing Level | 7000' | 2500' | 2000' | 4000' | 3500' | 3500' | 8000' | 9000' |
| Wednesday Night | Freezing Level | 7000' | 2500' | 1500' | 2000' | 3500' | 5000' | 7000' | 8000' |
| Thursday Morning | Snow Level | 4000' | 2500' | 2000' | 4000' | 3500' | 3500' | 4500' | 7000' |
| Thursday Afternoon | Snow Level | 4000' | 2500' | 4000' | 4500' | 3000' | 3000' | 3500' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 3500' |
| Wednesday Afternoon |
Freezing Level 5500' |
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 7000' |
| Thursday Morning |
Snow Level 4000' |
| Thursday Afternoon |
Snow Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 2000' |
| Wednesday Afternoon |
Freezing Level 3500' |
| Wednesday Evening |
Freezing Level 2500' |
| Wednesday Night |
Freezing Level 2500' |
| Thursday Morning |
Snow Level 2500' |
| Thursday Afternoon |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 1500' |
| Wednesday Afternoon |
Freezing Level 4000' |
| Wednesday Evening |
Freezing Level 2000' |
| Wednesday Night |
Freezing Level 1500' |
| Thursday Morning |
Snow Level 2000' |
| Thursday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 1500' |
| Wednesday Afternoon |
Freezing Level 4500' |
| Wednesday Evening |
Freezing Level 4000' |
| Wednesday Night |
Freezing Level 2000' |
| Thursday Morning |
Snow Level 4000' |
| Thursday Afternoon |
Snow Level 4500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 2000' |
| Wednesday Afternoon |
Freezing Level 3500' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 3500' |
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 2000' |
| Wednesday Afternoon |
Freezing Level 3500' |
| Wednesday Evening |
Freezing Level 3500' |
| Wednesday Night |
Freezing Level 5000' |
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 3000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 3000' |
| Wednesday Afternoon |
Freezing Level 8500' |
| Wednesday Evening |
Freezing Level 8000' |
| Wednesday Night |
Freezing Level 7000' |
| Thursday Morning |
Snow Level 4500' |
| Thursday Afternoon |
Snow Level 3500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning |
Freezing Level 4000' |
| Wednesday Afternoon |
Freezing Level 9000' |
| Wednesday Evening |
Freezing Level 9000' |
| Wednesday Night |
Freezing Level 8000' |
| Thursday Morning |
Snow Level 7000' |
| Thursday Afternoon |
Snow Level 4500' |
* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.
Precipitation Forecast
| Wednesday | Wednesday Night | Sunday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | LT 0.25 |
| Mt Baker Ski Area | 0 | 0 | 0.25 - 0.50 |
| Washington Pass | 0 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | LT 0.25 |
| Snoqualmie Pass | 0 | 0 | LT 0.25 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | 0.25 |
| White Pass | 0 | 0 | LT 0.10 |
| Mt Hood Meadows | 0 | 0 | LT 0.10 |
| Timberline | 0 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Sunday | LT 0.10 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 7:00 AM PST Wednesday, February 12, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 | NW 0 - 10 | NW 5 - 15 |
| Wednesday Afternoon | SW 0 - 10 | W 0 - 10 | WNW 5 - 15 | NW 5 - 15 | W 0 - 10 |
| Wednesday Evening | SW 5 - 15 | SW 0 - 10 | WNW 5 - 15 | NW 5 - 15 | W 0 - 10 |
| Wednesday Night | SW 5 - 15 | SW 0 - 10 | WNW 5 - 15 | SW 5 - 15 | W 5 - 15 |
| Thursday Morning | SW 15 - 25 | S 10 - 20 | WSW 5 - 15 | SW 10 - 20 | W 5 - 15 |
| Thursday Afternoon | W 15 - 25 | SW 15 - 25 | WSW 15 - 25 | WSW 15 - 25 | W 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | SW 0 - 10 |
| Wednesday Evening | SW 5 - 15 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SW 15 - 25 |
| Thursday Afternoon | W 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | SW 0 - 10 |
| Wednesday Night | SW 0 - 10 |
| Thursday Morning | S 10 - 20 |
| Thursday Afternoon | SW 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | WNW 5 - 15 |
| Wednesday Evening | WNW 5 - 15 |
| Wednesday Night | WNW 5 - 15 |
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | WSW 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Morning | NW 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Wednesday Evening | NW 5 - 15 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | WSW 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning | NW 5 - 15 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | W 0 - 10 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | SW 0 - 10 |
| Wednesday Evening | SW 5 - 15 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SW 15 - 25 |
| Thursday Afternoon | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | SW 0 - 10 |
| Wednesday Night | SW 0 - 10 |
| Thursday Morning | S 10 - 20 |
| Thursday Afternoon | SW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | WNW 5 - 15 |
| Wednesday Evening | WNW 5 - 15 |
| Wednesday Night | WNW 5 - 15 |
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | WSW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | NW 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Wednesday Evening | NW 5 - 15 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | WSW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | NW 5 - 15 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | W 0 - 10 |
| Wednesday Night | W 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 20 - 30 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | NW 15 - 25 | NW 15 - 25 | NW 25 - 35 | NW 25 - 35 | NNW 20 - 30 |
| Wednesday Afternoon | NW 15 - 25 | NW 10 - 20 | NW 25 - 35 | NW 20 - 30 | NW 15 - 25 |
| Wednesday Evening | W 20 - 30 | W 10 - 20 | WNW 20 - 30 | WNW 20 - 30 | NW 10 - 20 |
| Wednesday Night | W 20 - 30 | W 20 - 30 | W 20 - 30 | W 20 - 30 | W 20 - 30 |
| Thursday Morning | SW 25 - 35 | SW 25 - 35 | WSW 30 - 40 | WSW 25 - 35 | W 20 - 30 |
| Thursday Afternoon | SW 30 - 40 | SW 30 - 40 | WSW 35 - 45 | WSW 30 - 40 | W 35 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | NW 15 - 25 |
| Wednesday Afternoon | NW 15 - 25 |
| Wednesday Evening | W 20 - 30 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | SW 25 - 35 |
| Thursday Afternoon | SW 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Morning | NW 15 - 25 |
| Wednesday Afternoon | NW 10 - 20 |
| Wednesday Evening | W 10 - 20 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | SW 25 - 35 |
| Thursday Afternoon | SW 30 - 40 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | NW 25 - 35 |
| Wednesday Afternoon | NW 25 - 35 |
| Wednesday Evening | WNW 20 - 30 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | WSW 30 - 40 |
| Thursday Afternoon | WSW 35 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | NW 25 - 35 |
| Wednesday Afternoon | NW 20 - 30 |
| Wednesday Evening | WNW 20 - 30 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | WSW 25 - 35 |
| Thursday Afternoon | WSW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | NNW 20 - 30 |
| Wednesday Afternoon | NW 15 - 25 |
| Wednesday Evening | NW 10 - 20 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 35 - 45 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Feb 11, 2020
The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.