Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Thursday
A high-pressure ridge off the coast will continue to drive our weather patterns today as it slowly drifts onshore. A warm front will bump into the ridge and try to make its way inland, however, most of the precipitation will be held at bay. Look for showers in the Olympics and North Cascades. Showers could spread south later in the day, but precipitation totals should be very light. Warm air associated with this system will drift inland from the south and west. Air temperatures will increase throughout the day in most areas. Locations east of the Cascades should remain chilly as a pool of cold air stays solidly in place. With cold air east of the range, the Passes should continue to see east flow allowing for colder temperatures at pass level.
Monday night and Tuesday morning should be dry in most locations as any lingering showers move out to the north. Our next weather system approaches late in the day Tuesday ushering in a significant weather pattern change with the possibility for heavy mountain snow.
Weather Forecast
Hurricane Ridge
| Monday | Cloudy with rain and snow showers. Moderate winds. Warming temperatures. |
Mt. Baker
| Monday | Cloudy with scattered showers. Moderate S winds decreasing. |
Washington Pass and Leavenworth
| Monday | Mostly cloudy. Showers possible especially near Washington Pass. Partly sunny near Mission Ridge. |
Stevens and Snoqualmie Pass
| Monday | Mostly cloudy with an isolated shower possible in the afternoon. Light easterly winds at pass level. |
Mt. Rainier, Crystal and White Pass
| Monday | Mostly cloudy. Warming temperatures. |
Mt. Hood
| Monday | Mostly cloudy. Warming temperatures. |
Issued: 6:36 AM PST Monday, December 16, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Freezing Level * | 3500' | 1500' | 1500' | 1500' | 2000' | 2000' | 3000' | 3500' |
| Monday Afternoon | Freezing Level * | 5000' | 2500' | 2500' | 2500' | 3000' | 3000' | 4000' | 4500' |
| Monday Evening | Freezing Level * | 5500' | 3000' | 2500' | 2500' | 3000' | 3500' | 4000' | 4500' |
| Monday Night | Freezing Level * | 5500' | 3500' | 2500' | 2500' | 3000' | 3000' | 4000' | 4500' |
| Tuesday Morning | Freezing Level * | 5500' | 4000' | 2500' | 2500' | 3000' | 3500' | 4500' | 4500' |
| Tuesday Afternoon | Freezing Level * | 5500' | 4500' | 2500' | 2500' | 3500' | 4000' | 5000' | 5000' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Monday Night |
Freezing Level 5500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 3000' (Easterly Flow *) |
| Monday Night |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 2500' (Easterly Flow *) |
| Monday Night |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 2500' (Easterly Flow *) |
| Monday Night |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 3000' (Easterly Flow *) |
| Monday Night |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 3500' (Easterly Flow *) |
| Monday Night |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Monday Night |
Freezing Level 4000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 4500' (Easterly Flow *) |
| Monday Night |
Freezing Level 4500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
* 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 | LT 0.10 | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | LT 0.10 | LT 0.25 | LT 0.10 |
| Washington Pass | 0 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | LT 0.10 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 |
| White Pass | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Thursday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Thursday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Thursday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0 |
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: 6:36 AM PST Monday, December 16, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | SSW 10 - 20 | S 10 - 20 | W 5 - 15 | WSW 5 - 15 | W 5 - 15 |
| Monday Afternoon | SW 10 - 20 | SW 5 - 15 | WSW 5 - 15 | SW 5 - 15 | WSW 5 - 15 |
| Monday Evening | SSW 5 - 15 | S 5 - 15 | SW 5 - 15 | S 5 - 15 | S 10 - 20 |
| Monday Night | S 10 - 20 | S 10 - 20 | S 5 - 15 | SSE 5 - 15 | S 10 - 20 |
| Tuesday Morning | S 10 - 20 | S 10 - 20 | SSE 5 - 15 | S 5 - 15 | S 10 - 20 |
| Tuesday Afternoon | SSW 15 - 25 | S 10 - 20 | SSW 5 - 15 | S 5 - 15 | S 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | SW 10 - 20 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | SSW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | S 5 - 15 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | SW 5 - 15 |
| Monday Night | S 5 - 15 |
| Tuesday Morning | SSE 5 - 15 |
| Tuesday Afternoon | SSW 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | WSW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | S 5 - 15 |
| Monday Night | SSE 5 - 15 |
| Tuesday Morning | S 5 - 15 |
| Tuesday Afternoon | S 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | S 10 - 20 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | S 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | SW 10 - 20 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | SSW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | S 5 - 15 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | SW 5 - 15 |
| Monday Night | S 5 - 15 |
| Tuesday Morning | SSE 5 - 15 |
| Tuesday Afternoon | SSW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | WSW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | S 5 - 15 |
| Monday Night | SSE 5 - 15 |
| Tuesday Morning | S 5 - 15 |
| Tuesday Afternoon | S 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | S 10 - 20 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | S 10 - 20 |
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 | W 25 - 35 | W 25 - 35 | W 20 - 30 | WNW 20 - 30 | WNW 15 - 25 |
| Monday Afternoon | W 25 - 35 | W 30 - 40 | W 20 - 30 | W 15 - 25 | WSW 15 - 25 |
| Monday Evening | SW 20 - 30 | SW 25 - 35 | SW 25 - 35 | SW 20 - 30 | SW 20 - 30 |
| Monday Night | SW 30 - 40 | SW 30 - 40 | SW 30 - 40 | SW 30 - 40 | SW 30 - 40 |
| Tuesday Morning | SW 30 - 40 | SW 35 - 45 | SW 30 - 40 | SW 30 - 40 | SW 30 - 40 |
| Tuesday Afternoon | SW 35 - 45 | SW 35 - 45 | SW 30 - 40 | SW 30 - 40 | SW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 25 - 35 |
| Monday Evening | SW 20 - 30 |
| Monday Night | SW 30 - 40 |
| Tuesday Morning | SW 30 - 40 |
| Tuesday Afternoon | SW 35 - 45 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 30 - 40 |
| Monday Evening | SW 25 - 35 |
| Monday Night | SW 30 - 40 |
| Tuesday Morning | SW 35 - 45 |
| Tuesday Afternoon | SW 35 - 45 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 20 - 30 |
| Monday Afternoon | W 20 - 30 |
| Monday Evening | SW 25 - 35 |
| Monday Night | SW 30 - 40 |
| Tuesday Morning | SW 30 - 40 |
| Tuesday Afternoon | SW 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | WNW 20 - 30 |
| Monday Afternoon | W 15 - 25 |
| Monday Evening | SW 20 - 30 |
| Monday Night | SW 30 - 40 |
| Tuesday Morning | SW 30 - 40 |
| Tuesday Afternoon | SW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WNW 15 - 25 |
| Monday Afternoon | WSW 15 - 25 |
| Monday Evening | SW 20 - 30 |
| Monday Night | SW 30 - 40 |
| Tuesday Morning | SW 30 - 40 |
| Tuesday Afternoon | SW 25 - 35 |
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 Dec 15, 2019
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