Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Thursday
A very wet and active weather pattern will be with us for the next several days.
A relatively stationary, but strong warm front is draped across the Olympics and S Washington Cascades on Monday morning, in association with a broad, but subtle upper-level ridge. The front should gradually lift northward throughout the day, bringing warmer air, and strong SW winds. There's a 50 mph low-level jetstream most vigorous over the central and southern parts of the forecast area, bringing strong alpine winds throughout the region. The warm front continues to bring increasing moderate to heavy rain and snow to the region with a gradual changeover to rain for the Cascade Passes as the day progresses. Areas east of the Cascade should experience a warm-up during the afternoon hours. Precipitation amounts today should be maximized just to the north of the warm front, in the southern and central Washington Cascades, with a very subtle shift northward in the areas of maximum precipitation tonight as the front drifts northward.
On Tuesday, a trough digs offshore as a surface low moves across the northern tip of Vancouver Island with the warm front keeping the heaviest precipitation over the North Cascades and Olympics while most of the rest of the ranges are in the warm sector and experiencing lighter precipitation with mild temperatures. The trough and the surface cold front move onshore by late in the day on Tuesday keeping with winds once again intensifying and rain/snow in the same general areas.
Weather Forecast
Hurricane Ridge
| Monday | Heavy rain and snow with rapidly rising snow levels and strong moderate to strong winds ridgetop winds. |
Mt. Baker
| Monday | Increasing moderate to heavy rain and snow. Rising snow levels. Moderate to strong 5000 ft winds. |
Washington Pass and Leavenworth
| Monday | Increasing moderate rain and snow with rising snow levels. All snow at Washington Pass, Increasing moderate to strong 5000 ft winds, strongest in the south. |
Stevens and Snoqualmie Pass
| Monday | Increasing heavy rain and snow with rising snow levels. Snow at Snoqualmie Pass until mid to late morning, then transitioning to rain. The changeover occurs in the afternoon hours at Stevens by 4 PM. W winds through the Passes light to moderate. Strong 5000 ft winds. |
Mt. Rainier, Crystal and White Pass
| Monday | Increasing heavy rain and snow with rising snow levels. Strong winds in the alpine. |
Mt. Hood
| Monday | Decreasing moderate rain and snow with rising snow levels. Extreme winds in the alpine. |
Issued: 7:12 AM PST Monday, January 6, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level | 4500' | 2000' | 1500' | 2000' | 2500' | 3000' | 3500' | 4000' |
| Monday Afternoon | Snow Level | 5000' | 3000' | 3000' | 3500' | 4000' | 4500' | 4000' | 5000' |
| Monday Evening | Snow Level | 5500' | 4500' | 4000' | 5500' | 5000' | 5000' | 5000' | 5000' |
| Monday Night | Snow Level | 5500' | 4500' | 4500' | 5500' | 5000' | 5000' | 5000' | 5000' |
| Tuesday Morning | Snow Level | 5000' | 4500' | 4500' | 5000' | 4500' | 5000' | 5000' | 5000' |
| Tuesday Afternoon | Snow Level | 5000' | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 4500' |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 5500' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3000' |
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 4500' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 3000' |
| Monday Evening |
Snow Level 4000' |
| Monday Night |
Snow Level 4500' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 5500' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 4000' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 3000' |
| Monday Afternoon |
Snow Level 4500' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level 3500' |
| Monday Afternoon |
Snow Level 4000' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday 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
| Monday | Monday Night | Thursday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.75 | 0.50 - 0.75 | 0.75 |
| Mt Baker Ski Area | 1.00 | 1.00 - 1.50 | 2.00 |
| Washington Pass | 1.00 | 0.50 - 0.75 | 0.75 |
| Leavenworth | 0.75 | 0.25 | LT 0.10 |
| Stevens Pass | 1.50 - 2.00 | 1.00 - 1.50 | 0.25 |
| Snoqualmie Pass | 2.00 | 1.50 | 0.25 |
| Mission Ridge | 0.50 - 0.75 | LT 0.25 | LT 0.10 |
| Crystal Mt | 0.75 -1.00 | 0.25 - 0.50 | 0.25 - 0.50 |
| Paradise | 2.50 | 2.00 | 1.00 |
| White Pass | 1.00 - 1.50 | 0.50 | 0.25 - 0.50 |
| Mt Hood Meadows | 1.00 | 0.50 - 0.75 | 0.25 - 0.50 |
| Timberline | 1.00 | 0.50 - 0.75 | 0.25 - 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | 0.75 |
| Monday Night | 0.50 - 0.75 |
| Thursday | 0.75 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | 1.00 |
| Monday Night | 1.00 - 1.50 |
| Thursday | 2.00 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | 1.00 |
| Monday Night | 0.50 - 0.75 |
| Thursday | 0.75 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | 0.75 |
| Monday Night | 0.25 |
| Thursday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 1.50 - 2.00 |
| Monday Night | 1.00 - 1.50 |
| Thursday | 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 2.00 |
| Monday Night | 1.50 |
| Thursday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0.50 - 0.75 |
| Monday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | 0.75 -1.00 |
| Monday Night | 0.25 - 0.50 |
| Thursday | 0.25 - 0.50 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 2.50 |
| Monday Night | 2.00 |
| Thursday | 1.00 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 1.00 - 1.50 |
| Monday Night | 0.50 |
| Thursday | 0.25 - 0.50 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 1.00 |
| Monday Night | 0.50 - 0.75 |
| Thursday | 0.25 - 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 1.00 |
| Monday Night | 0.50 - 0.75 |
| Thursday | 0.25 - 0.50 |
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: 7:12 AM PST Monday, January 6, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | WSW 20 - 30 | SW 20 - 30 | WSW 20 - 30 | WSW 20 - 30 | WSW 25 - 35 |
| Monday Afternoon | WSW 20 - 30 | SW 20 - 30 | WSW 20 - 30 | WSW 20 - 30 | WSW 30 - 40 |
| Monday Evening | WSW 10 - 20 | WSW 15 - 25 | WSW 20 - 30 | WSW 20 - 30 | WSW 30 - 40 |
| Monday Night | SW 20 - 30 | SSW 20 - 30 | WSW 30 - 40 | WSW 20 - 30 | WSW 25 - 35 |
| Tuesday Morning | SSW 25 - 35 | S 25 - 35 | WSW 20 - 30 | WSW 15 - 25 | WSW 20 - 30 |
| Tuesday Afternoon | SW 15 - 25 | S 20 - 30 | SW 25 - 35 | SSW 20 - 30 | SW 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | SW 20 - 30 |
| Tuesday Morning | SSW 25 - 35 |
| Tuesday Afternoon | SW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | SSW 20 - 30 |
| Tuesday Morning | S 25 - 35 |
| Tuesday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | WSW 30 - 40 |
| Tuesday Morning | WSW 20 - 30 |
| Tuesday Afternoon | SW 25 - 35 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | WSW 20 - 30 |
| Tuesday Morning | WSW 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | WSW 25 - 35 |
| Monday Afternoon | WSW 30 - 40 |
| Monday Evening | WSW 30 - 40 |
| Monday Night | WSW 25 - 35 |
| Tuesday Morning | WSW 20 - 30 |
| Tuesday Afternoon | SW 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | SW 20 - 30 |
| Tuesday Morning | SSW 25 - 35 |
| Tuesday Afternoon | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | SSW 20 - 30 |
| Tuesday Morning | S 25 - 35 |
| Tuesday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | WSW 30 - 40 |
| Tuesday Morning | WSW 20 - 30 |
| Tuesday Afternoon | SW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | WSW 20 - 30 |
| Tuesday Morning | WSW 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WSW 25 - 35 |
| Monday Afternoon | WSW 30 - 40 |
| Monday Evening | WSW 30 - 40 |
| Monday Night | WSW 25 - 35 |
| Tuesday Morning | WSW 20 - 30 |
| Tuesday Afternoon | SW 15 - 25 |
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 | |
|---|---|---|---|---|---|
| Monday Morning | WSW 40 - 50 | WSW 35 - 45 | WSW 55 - 70 | WSW 50 - 65 | W 55 - 70 |
| Monday Afternoon | WSW 40 - 60 | W 45 - 60 | W 50 - 65 | W 50 - 65 | W 50 - 65 |
| Monday Evening | WSW 35 - 45 | W 35 - 45 | W 45 - 60 | W 40 - 50 | W 40 - 50 |
| Monday Night | WSW 35 - 45 | WSW 40 - 55 | WSW 50 - 65 | WSW 40 - 50 | WSW 40 - 50 |
| Tuesday Morning | SW 45 - 60 | WSW 50 - 65 | WSW 50 - 65 | WSW 40 - 50 | WSW 40 - 50 |
| Tuesday Afternoon | SW 40 - 55 | SW 40 - 55 | WSW 40 - 55 | WSW 40 - 50 | WSW 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | WSW 40 - 50 |
| Monday Afternoon | WSW 40 - 60 |
| Monday Evening | WSW 35 - 45 |
| Monday Night | WSW 35 - 45 |
| Tuesday Morning | SW 45 - 60 |
| Tuesday Afternoon | SW 40 - 55 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | WSW 35 - 45 |
| Monday Afternoon | W 45 - 60 |
| Monday Evening | W 35 - 45 |
| Monday Night | WSW 40 - 55 |
| Tuesday Morning | WSW 50 - 65 |
| Tuesday Afternoon | SW 40 - 55 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | WSW 55 - 70 |
| Monday Afternoon | W 50 - 65 |
| Monday Evening | W 45 - 60 |
| Monday Night | WSW 50 - 65 |
| Tuesday Morning | WSW 50 - 65 |
| Tuesday Afternoon | WSW 40 - 55 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | WSW 50 - 65 |
| Monday Afternoon | W 50 - 65 |
| Monday Evening | W 40 - 50 |
| Monday Night | WSW 40 - 50 |
| Tuesday Morning | WSW 40 - 50 |
| Tuesday Afternoon | WSW 40 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 55 - 70 |
| Monday Afternoon | W 50 - 65 |
| Monday Evening | W 40 - 50 |
| Monday Night | WSW 40 - 50 |
| Tuesday Morning | WSW 40 - 50 |
| Tuesday Afternoon | WSW 40 - 50 |
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 Jan 5, 2020
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