Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Thursday
8:50 AM update: Changed cloud cover in southern parts of the forecast area.
A strong jetstream steered by a Gulf of Alaska low is bringing heavy precipitation to British Columbia, but a ridge of high pressure over the western US is keeping most of the precipitation is to our north and west. Warm air advection continues to keep snow/freezing levels rising, but E winds bringing cold air from east of the Cascades Crest introduce multiple freezing levels in the lower Cascade passes and Mt. Hood area. Washington Pass has stayed cold, but with a temperature inversion. Most locations west of the crest are seeing dramatically warmer conditions than just a few days ago. The Olympics and Mt. Baker areas should receive some light rain and snow while Mt. Hood has rapidly decreasing clouds and sunshine should replace the freezing rain and rain reported early this morning. The southern and then central Washington Cascades should also see a transition from mid-elevation clouds to mostly sunny conditions throughout the day.
Sunday and Sunday night, a shortwave trough riding along the strong jet to our NW, should re-orient the precipitation band so that it is more N-S as it moves towards our near-shore waters by early Monday morning. A stronger low further offshore incorporates the weakening frontal system before it comes onshore, such that generally only the Olympics and Mt. Baker areas get a brush of rain and high elevation snow on Monday morning, lingering into the afternoon for the Olympics.
Weather Forecast
Hurricane Ridge
| Sunday | Cloudy with isolated rain or snow showers. Mild and warming. |
Mt. Baker
| Sunday | Periods of light rain and snow developing from mid-morning onwards. Mild and warming. |
Washington Pass and Leavenworth
| Sunday | Cloudy with isolated snow showers in the afternoon at Washington Pass and cloudy skies elsewhere likely giving way to mostly sunny skies during the afternoon, south of Washington Pass. E flow keeping the pass cold and inverted in temperature. Low clouds lingering in the valleys. |
Stevens and Snoqualmie Pass
| Sunday | Cloudy with a slight chance of rain or snow showers in the morning and clouds giving way to partial sunshine in the afternoon. Multiple snow levels possible with a general trend toward rising snow levels. E wind through the Passes 10-20 mph and 5000 ft winds 10-20 mph. |
Mt. Rainier, Crystal and White Pass
| Sunday | Cloudy with a very slight chance of rain or snow showers in the morning. Sunshine likely from late morning onwards. |
Mt. Hood
| Sunday | A mix of light rain and freezing rain in the early morning with clouds rapidly giving way to sunshine. |
Issued: 8:52 AM PST Sunday, January 19, 2020
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 * | 5000' | 4500' | 1500' | 1500' | 2500' | 3500' | 5500' | 7000' |
| Sunday Afternoon | Snow Level * | 6500' | 6000' | 3500' | 3000' | 4000' | 6000' | 6500' | 7500' |
| Sunday Evening | Snow Level * | 7000' | 6500' | 3500' | 3500' | 4500' | 6000' | 6500' | 6000' |
| Sunday Night | Snow Level * | 7000' | 5500' | 3500' | 3000' | 4000' | 5500' | 5000' | 4500' |
| Monday Morning | Snow Level * | 5500' | 5500' | 3000' | 2500' | 3000' | 3000' | 4500' | 3500' |
| Monday Afternoon | Snow Level * | 4500' | 4000' | 1500' | 1500' | 2500' | 4000' | 5000' | 6500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 5000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 7000' (Easterly Flow *) |
| Sunday Night |
Snow Level 7000' (Easterly Flow *) |
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 6500' (Easterly Flow *) |
| Sunday Night |
Snow Level 5500' (Easterly Flow *) |
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 3500' (Easterly Flow *) |
| Sunday Night |
Snow Level 3500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 3500' (Easterly Flow *) |
| Sunday Night |
Snow Level 3000' (Easterly Flow *) |
| Monday Morning |
Snow Level 2500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 4500' (Easterly Flow *) |
| Sunday Night |
Snow Level 4000' (Easterly Flow *) |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 6000' (Easterly Flow *) |
| Sunday Night |
Snow Level 5500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 6500' (Easterly Flow *) |
| Sunday Night |
Snow Level 5000' (Easterly Flow *) |
| Monday Morning |
Snow Level 4500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 7000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 7500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 6000' (Easterly Flow *) |
| Sunday Night |
Snow Level 4500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6500' (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 | 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 | 0.25 - 0.50 | LT 0.25 | 0.25 - 0.50 |
| Washington Pass | LT 0.10 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 |
| Mt Hood Meadows | 0.25 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Thursday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 0.25 - 0.50 |
| Sunday Night | LT 0.25 |
| Thursday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Thursday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Thursday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Thursday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Thursday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Thursday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Thursday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Thursday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Thursday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | 0 |
| Thursday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday 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: 8:52 AM PST Sunday, January 19, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | S 10 - 20 | SSE 10 - 20 | SSE 10 - 20 | SSE 10 - 20 | S 5 - 15 |
| Sunday Afternoon | S 10 - 20 | SSE 5 - 15 | E 5 - 15 | E 5 - 15 | ESE 10 - 20 |
| Sunday Evening | SSE 10 - 20 | SE 5 - 15 | E 5 - 15 | E 5 - 15 | SE 10 - 20 |
| Sunday Night | S 15 - 25 | SSE 10 - 20 | E 5 - 15 | SE 5 - 15 | SSW 5 - 15 |
| Monday Morning | SW 10 - 20 | S 10 - 20 | SE 10 - 20 | SSE 10 - 20 | S 5 - 15 |
| Monday Afternoon | S 10 - 20 | SSE 10 - 20 | ESE 10 - 20 | SE 10 - 20 | SSE 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | S 10 - 20 |
| Sunday Evening | SSE 10 - 20 |
| Sunday Night | S 15 - 25 |
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | S 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | SSE 5 - 15 |
| Sunday Evening | SE 5 - 15 |
| Sunday Night | SSE 10 - 20 |
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SSE 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Evening | E 5 - 15 |
| Sunday Night | E 5 - 15 |
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | ESE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Evening | E 5 - 15 |
| Sunday Night | SE 5 - 15 |
| Monday Morning | SSE 10 - 20 |
| Monday Afternoon | SE 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | ESE 10 - 20 |
| Sunday Evening | SE 10 - 20 |
| Sunday Night | SSW 5 - 15 |
| Monday Morning | S 5 - 15 |
| Monday Afternoon | SSE 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | S 10 - 20 |
| Sunday Evening | SSE 10 - 20 |
| Sunday Night | S 15 - 25 |
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | S 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | SSE 5 - 15 |
| Sunday Evening | SE 5 - 15 |
| Sunday Night | SSE 10 - 20 |
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SSE 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Evening | E 5 - 15 |
| Sunday Night | E 5 - 15 |
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | ESE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | SSE 10 - 20 |
| Sunday Afternoon | E 5 - 15 |
| Sunday Evening | E 5 - 15 |
| Sunday Night | SE 5 - 15 |
| Monday Morning | SSE 10 - 20 |
| Monday Afternoon | SE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | ESE 10 - 20 |
| Sunday Evening | SE 10 - 20 |
| Sunday Night | SSW 5 - 15 |
| Monday Morning | S 5 - 15 |
| Monday Afternoon | SSE 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 | |
|---|---|---|---|---|---|
| Sunday Morning | SW 35 - 45 | SW 35 - 45 | SW 35 - 45 | WSW 25 - 35 | SW 15 - 25 |
| Sunday Afternoon | SW 30 - 40 | SW 25 - 35 | SW 20 - 30 | SW 15 - 25 | SSW 20 - 30 |
| Sunday Evening | SSW 25 - 35 | SSW 20 - 30 | SSW 15 - 25 | SSW 20 - 30 | SSW 15 - 25 |
| Sunday Night | S 25 - 35 | S 20 - 30 | SSW 20 - 30 | SW 25 - 35 | SW 20 - 30 |
| Monday Morning | SSW 30 - 40 | SSW 20 - 30 | SSW 20 - 30 | SSW 25 - 35 | SSW 25 - 35 |
| Monday Afternoon | SSW 20 - 30 | SW 20 - 30 | SW 20 - 30 | SW 20 - 30 | SW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | SW 35 - 45 |
| Sunday Afternoon | SW 30 - 40 |
| Sunday Evening | SSW 25 - 35 |
| Sunday Night | S 25 - 35 |
| Monday Morning | SSW 30 - 40 |
| Monday Afternoon | SSW 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | SW 35 - 45 |
| Sunday Afternoon | SW 25 - 35 |
| Sunday Evening | SSW 20 - 30 |
| Sunday Night | S 20 - 30 |
| Monday Morning | SSW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | SW 35 - 45 |
| Sunday Afternoon | SW 20 - 30 |
| Sunday Evening | SSW 15 - 25 |
| Sunday Night | SSW 20 - 30 |
| Monday Morning | SSW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | WSW 25 - 35 |
| Sunday Afternoon | SW 15 - 25 |
| Sunday Evening | SSW 20 - 30 |
| Sunday Night | SW 25 - 35 |
| Monday Morning | SSW 25 - 35 |
| Monday Afternoon | SW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | SSW 20 - 30 |
| Sunday Evening | SSW 15 - 25 |
| Sunday Night | SW 20 - 30 |
| Monday Morning | SSW 25 - 35 |
| Monday 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 Jan 19, 2020
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