Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Sunday
The series of storms that brought snow to the mountains over the last several days should warp up Sunday, but not before dropping a few more inches of snow in some locations around the central Washington Cascades. If you are out in the mountains today you will likely notice it looks and feels like winter. Air temperatures are chilly, with snow levels hovering between 500 feet in the north to 2000 feet near Mt Hood. Snow showers should persist in a few areas Sunday. Most of the activity will be concentrated in convergence bands north of Mt Rainier. If you find yourself under one of these bands of showers, you could see prolonged precipitation. In other locations, don't rule out a stray shower, especially in the morning, but you'll generally find dry conditions.
Showers should end Sunday afternoon as a high-pressure ridge slides over the area. Expect a cold night with fog or low clouds possible in the mountain passes and valleys. On Monday, warm air will move into the western and southern regions of our forecast area as a warm front passes offshore. There could be a few stray showers Monday, but these should be limited to the Olympics and Mt Baker areas. The high-pressure ridge ought to keep most of the precipitation offshore allowing for a dry day in most locations.
Weather Forecast
Hurricane Ridge
| Sunday | Mostly sunny. |
Mt. Baker
| Sunday | Mostly cloudy. Isolated snow showers possible. |
Washington Pass and Leavenworth
| Sunday | Mostly cloudy. |
Stevens and Snoqualmie Pass
| Sunday | Mostly cloudy. Convergence band snow showers possible. Light west winds at pass level. |
Mt. Rainier, Crystal and White Pass
| Sunday | Mostly cloudy. Sun breaks possible, particularly near Crystal. Scattered snow showers possible. |
Mt. Hood
| Sunday | Mostly cloudy at lower elevations. Moderate west winds. |
Issued: 6:25 AM PST Sunday, December 15, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Morning | Snow Level | 1500' | 500' | 500' | 500' | 1500' | 2000' | 2000' | 2000' |
| Sunday Afternoon | Snow Level | 2000' | 1500' | 1000' | 1500' | 1500' | 2000' | 2000' | 2000' |
| Sunday Evening | Freezing Level * | 2500' | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' | 2000' |
| Sunday Night | Freezing Level * | 2500' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' | 2000' |
| Monday Morning | Freezing Level * | 3500' | 1500' | 1500' | 1500' | 1500' | 1500' | 2000' | 2500' |
| Monday Afternoon | Freezing Level * | 5000' | 2500' | 2500' | 2500' | 3000' | 3500' | 4000' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Freezing Level 2500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 2500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Freezing Level 2000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 2000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (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
| Sunday | Sunday Night | Sunday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | 0 | LT 0.10 |
| Washington Pass | LT 0.10 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.25 | 0 | 0 |
| Snoqualmie Pass | LT 0.25 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 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 |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.25 |
| Sunday Night | 0 |
| Sunday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.25 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 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: 6:25 AM PST Sunday, December 15, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | WNW 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Sunday Afternoon | W 0 - 10 | SW 0 - 10 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Sunday Evening | W 5 - 15 | SW 5 - 15 | W 5 - 15 | W 5 - 15 | WNW 5 - 15 |
| Sunday Night | SW 5 - 15 | SSW 0 - 10 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Monday Morning | SW 5 - 15 | SSW 5 - 15 | W 5 - 15 | W 5 - 15 | WSW 5 - 15 |
| Monday Afternoon | SW 5 - 15 | SSW 5 - 15 | W 5 - 15 | SW 5 - 15 | SW 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | WNW 5 - 15 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Monday Morning | SW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | SW 0 - 10 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | SSW 0 - 10 |
| Monday Morning | SSW 5 - 15 |
| Monday Afternoon | SSW 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | W 10 - 20 |
| Sunday Evening | WNW 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | WSW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | WNW 5 - 15 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Monday Morning | SW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | SW 0 - 10 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | SSW 0 - 10 |
| Monday Morning | SSW 5 - 15 |
| Monday Afternoon | SSW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | W 10 - 20 |
| Sunday Evening | WNW 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | WSW 5 - 15 |
| Monday Afternoon | SW 5 - 15 |
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 | |
|---|---|---|---|---|---|
| Sunday Morning | NW 15 - 25 | NW 10 - 20 | NW 20 - 30 | NW 20 - 30 | NW 25 - 35 |
| Sunday Afternoon | NW 15 - 25 | NW 10 - 20 | NNW 20 - 30 | NW 20 - 30 | NW 25 - 35 |
| Sunday Evening | NW 20 - 30 | NW 15 - 25 | NNW 25 - 35 | NNW 20 - 30 | NNW 20 - 30 |
| Sunday Night | W 20 - 30 | WNW 15 - 25 | NW 20 - 30 | NW 15 - 25 | NW 15 - 25 |
| Monday Morning | W 25 - 35 | W 25 - 35 | WNW 25 - 35 | WNW 20 - 30 | W 10 - 20 |
| Monday Afternoon | W 25 - 35 | W 25 - 35 | W 20 - 30 | W 20 - 30 | SW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | NW 15 - 25 |
| Sunday Afternoon | NW 15 - 25 |
| Sunday Evening | NW 20 - 30 |
| Sunday Night | W 20 - 30 |
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | NW 10 - 20 |
| Sunday Afternoon | NW 10 - 20 |
| Sunday Evening | NW 15 - 25 |
| Sunday Night | WNW 15 - 25 |
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | NW 20 - 30 |
| Sunday Afternoon | NNW 20 - 30 |
| Sunday Evening | NNW 25 - 35 |
| Sunday Night | NW 20 - 30 |
| Monday Morning | WNW 25 - 35 |
| Monday Afternoon | W 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | NW 20 - 30 |
| Sunday Afternoon | NW 20 - 30 |
| Sunday Evening | NNW 20 - 30 |
| Sunday Night | NW 15 - 25 |
| Monday Morning | WNW 20 - 30 |
| Monday Afternoon | W 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | NW 25 - 35 |
| Sunday Afternoon | NW 25 - 35 |
| Sunday Evening | NNW 20 - 30 |
| Sunday Night | NW 15 - 25 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | SW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Dec 14, 2019
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.