Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Saturday & Friday
A Pacific frontal system will pass through the region today with the cold front pushing through the Cascades around noon. This system is packing a bit less punch than forecasted in terms of precipitation, and the precipitation forecast has been nudged down for the Olympics and west slopes of the Cascades. After the front passes through, post-frontal showers will be the most significant from about Stevens Pass northward to Mt. Baker with lighter amounts further south.
The slow warming trend is on track and cold air that has been entrenched over the region for the last week will begin to mix out for the Olympics, southwest Cascades and Mt. Hood today. The Cascade Passes and east slopes of the Cascades will have a much slower warming trend with cool easterly flow continuing over the short term.
A weak warm frontal feature is forecast to pass from south to north later tonight through Sunday. Upper level ridging over the inland NW will amplify tonight and begin to shunt the light precipitation northward into Canada. Snow and freezing levels will continue their general upward trend. With cool easterly offshore flow continuing, expect temperature inversions and/or multiple freezing levels for the Cascade Passes and Mt. Hood. The best chance for sunshine on Sunday should be for Mt. Hood and south/central Cascades with a clearing trend beginning later in the morning and continuing through the afternoon.
Weather Forecast
Hurricane Ridge
| Saturday | Light to occasionally moderate rain and snow showers. Warming trend. Strong winds decreasing in the afternoon. |
Mt. Baker
| Saturday | Light to moderate snow becoming light to moderate showers in the afternoon. Slow warming trend. Strong winds decreasing late this morning. |
Washington Pass and Leavenworth
| Saturday | Light to moderate snow becoming light to occasionally moderate showers in the afternoon, heaviest near the crest in the afternoon. |
Stevens and Snoqualmie Pass
| Saturday | Light to occasionally moderate snow becoming light showers in the afternoon, lighter near Snoqualmie Pass in the afternoon. Slow warming trend. Moderate to strong east winds in the Passes easing in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Saturday | Light to occasionally moderate rain and snow becoming light scattered showers in the afternoon. Slow warming trend. |
Mt. Hood
| Saturday | Light to moderate rain and snow becoming light scattered showers in the afternoon. Slow warming trend. |
Issued: 7:06 AM PST Saturday, January 18, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Morning | Snow Level * | 2500' | 500' | 0' | 0' | 1000' | 1500' | 2000' | 2500' |
| Saturday Afternoon | Snow Level | 4500' | 3000' | 0' | 1000' | 1500' | 2500' | 3500' | 4500' |
| Saturday Evening | Snow Level * | 4500' | 3500' | 0' | 1500' | 2000' | 3000' | 4000' | 4500' |
| Saturday Night | Snow Level * | 5000' | 3500' | 0' | 1500' | 2000' | 3000' | 4500' | 5500' |
| Sunday Morning | Snow Level * | 5500' | 4500' | 1500' | 2000' | 3000' | 3500' | 5500' | 6000' |
| Sunday Afternoon | Snow Level * | 7000' | 6000' | 3000' | 3000' | 4000' | 6500' | 7000' | 7500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4500' |
| Saturday Evening |
Snow Level 4500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 7000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning |
Snow Level 500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 3500' (Easterly Flow *) |
| Saturday Night |
Snow Level 3500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' |
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 1500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1000' |
| Saturday Evening |
Snow Level 1500' (Easterly Flow *) |
| Saturday Night |
Snow Level 1500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 2000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' |
| Saturday Evening |
Snow Level 2000' (Easterly Flow *) |
| Saturday Night |
Snow Level 2000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 3000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning |
Snow Level 1500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3000' (Easterly Flow *) |
| Sunday Morning |
Snow Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Evening |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 7000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning |
Snow Level 2500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 4500' |
| Saturday Evening |
Snow Level 4500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 7500' (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
| Saturday | Saturday Night | Friday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.25 - 0.50 | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | 0.75 -1.00 | 0.25 - 0.50 | 0.25 - 0.50 |
| Washington Pass | 0.25 - 0.50 | LT 0.10 | LT 0.10 |
| Leavenworth | 0.25 - 0.50 | LT 0.10 | 0 |
| Stevens Pass | 0.50 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | 0.50 - 0.75 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0.25 | LT 0.10 | 0 |
| Crystal Mt | 0.50 | LT 0.10 | LT 0.10 |
| Paradise | 0.50 - 0.75 | LT 0.10 | LT 0.10 |
| White Pass | 0.25 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | 0.50 - 0.75 | LT 0.10 | 0 |
| Timberline | 0.50 - 0.75 | LT 0.10 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday | 0.25 - 0.50 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday | 0.75 -1.00 |
| Saturday Night | 0.25 - 0.50 |
| Friday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday | 0.25 - 0.50 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday | 0.25 - 0.50 |
| Saturday Night | LT 0.10 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday | 0.50 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday | 0.50 - 0.75 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday | 0.25 |
| Saturday Night | LT 0.10 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday | 0.50 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday | 0.50 - 0.75 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday | 0.25 |
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday | 0.50 - 0.75 |
| Saturday Night | LT 0.10 |
| Friday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday | 0.50 - 0.75 |
| Saturday Night | LT 0.10 |
| Friday | 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: 7:06 AM PST Saturday, January 18, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Morning | S 25 - 35 | S 20 - 30 | SE 10 - 20 | S 15 - 25 | SSW 15 - 25 |
| Saturday Afternoon | SW 15 - 25 | S 15 - 25 | SW 15 - 25 | SW 15 - 25 | SW 20 - 30 |
| Saturday Evening | SW 10 - 20 | S 10 - 20 | S 5 - 15 | SW 10 - 20 | SW 10 - 20 |
| Saturday Night | S 10 - 20 | S 10 - 20 | SE 5 - 15 | S 10 - 20 | SW 5 - 15 |
| Sunday Morning | SSW 15 - 25 | S 15 - 25 | SE 10 - 20 | S 10 - 20 | SE 10 - 20 |
| Sunday Afternoon | S 10 - 20 | S 10 - 20 | SE 10 - 20 | SE 10 - 20 | SE 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Morning | S 25 - 35 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | S 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Morning | S 20 - 30 |
| Saturday Afternoon | S 15 - 25 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Morning | SE 10 - 20 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | S 5 - 15 |
| Saturday Night | SE 5 - 15 |
| Sunday Morning | SE 10 - 20 |
| Sunday Afternoon | SE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Morning | S 15 - 25 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | SE 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Morning | SSW 15 - 25 |
| Saturday Afternoon | SW 20 - 30 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | SW 5 - 15 |
| Sunday Morning | SE 10 - 20 |
| Sunday Afternoon | SE 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Morning | S 25 - 35 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | S 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | S 20 - 30 |
| Saturday Afternoon | S 15 - 25 |
| Saturday Evening | S 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | SE 10 - 20 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | S 5 - 15 |
| Saturday Night | SE 5 - 15 |
| Sunday Morning | SE 10 - 20 |
| Sunday Afternoon | SE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | S 15 - 25 |
| Saturday Afternoon | SW 15 - 25 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | S 10 - 20 |
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | SE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | SSW 15 - 25 |
| Saturday Afternoon | SW 20 - 30 |
| Saturday Evening | SW 10 - 20 |
| Saturday Night | SW 5 - 15 |
| Sunday Morning | SE 10 - 20 |
| Sunday Afternoon | SE 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 | |
|---|---|---|---|---|---|
| Saturday Morning | SW 45 - 55 | SW 40 - 50 | SW 40 - 50 | SW 40 - 50 | WSW 45 - 55 |
| Saturday Afternoon | SW 30 - 40 | SW 35 - 45 | SW 35 - 45 | SW 30 - 40 | WSW 40 - 50 |
| Saturday Evening | SW 20 - 30 | SW 20 - 30 | WSW 25 - 35 | SW 20 - 30 | WSW 25 - 35 |
| Saturday Night | SW 20 - 30 | SW 15 - 25 | SW 30 - 40 | SW 20 - 30 | SW 25 - 35 |
| Sunday Morning | SW 30 - 40 | SW 30 - 40 | SW 30 - 40 | SW 20 - 30 | SW 15 - 25 |
| Sunday Afternoon | SW 25 - 35 | SW 25 - 35 | S 15 - 25 | S 20 - 30 | S 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Morning | SW 45 - 55 |
| Saturday Afternoon | SW 30 - 40 |
| Saturday Evening | SW 20 - 30 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | SW 30 - 40 |
| Sunday Afternoon | SW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Morning | SW 40 - 50 |
| Saturday Afternoon | SW 35 - 45 |
| Saturday Evening | SW 20 - 30 |
| Saturday Night | SW 15 - 25 |
| Sunday Morning | SW 30 - 40 |
| Sunday Afternoon | SW 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Morning | SW 40 - 50 |
| Saturday Afternoon | SW 35 - 45 |
| Saturday Evening | WSW 25 - 35 |
| Saturday Night | SW 30 - 40 |
| Sunday Morning | SW 30 - 40 |
| Sunday Afternoon | S 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Morning | SW 40 - 50 |
| Saturday Afternoon | SW 30 - 40 |
| Saturday Evening | SW 20 - 30 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | SW 20 - 30 |
| Sunday Afternoon | S 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Morning | WSW 45 - 55 |
| Saturday Afternoon | WSW 40 - 50 |
| Saturday Evening | WSW 25 - 35 |
| Saturday Night | SW 25 - 35 |
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | S 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 17, 2020
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