Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Saturday
Showers will decrease on Friday through the early afternoon as a weakening shortwave trough moves eastward, diminishing light shower activity will largely focus on the west slopes in the north and central parts of the Cascades. Winds will decrease early in the morning.
Most areas will see a very brief break in the action before a powerful and deepening storm system tracking NE toward the Queen Charlotte Islands lifts a strong warm front across the region, beginning late in the day. The warm front will warm temperatures 15F as it crosses the coastline. Moderate to occasionally heavy precipitation will reach Mt. Hood during the late afternoon and will spread throughout the Cascades east and west slopes Friday night. Overnight, the Cascade volcanoes will receive 1-2" of snow water equivalent out of this storm, with Mt. Hood the winner. Moderate to strong sustained winds are expected and will gradually decrease on Saturday. Easterly flow will insulate the passes from the warming for much of the night, but eventually, a wind shift will bump snow levels by Saturday morning. The easterly flow will also favor significant water amounts east of the Cascade crest such as in the Mission Ridge and Leavenworth areas.
On Saturday, light to moderate rain and snow shower activity will diminish during the morning hours, lingering mostly north of Snoqualmie Pass in the afternoon.
Weather Forecast
Hurricane Ridge
| Friday | Decreasing light snow showers with increasing snow late in the day along with rising snow levels. Moderate winds becoming moderate to strong in the afternoon. Slowly rising snow levels. |
Mt. Baker
| Friday | Decreasing light to occasionally moderate snow showers. Increasing moderate winds from late morning onwards. |
Washington Pass and Leavenworth
| Friday | Light or very light snow showers decreasing and ending. Decreasing light to moderate winds. |
Stevens and Snoqualmie Pass
| Friday | Decreasing snow showers, possibly mixing with rain at Snoq pass level, ending by early afternoon. Decreasing light westerly pass-level wind becoming increasing moderate easterly in the afternoon. Moderate and shifting crest-level winds increasing in the afteroon. |
Mt. Rainier, Crystal and White Pass
| Friday | Light snow showers, decreasing. Moderate winds, slightly increasing late in the day. |
Mt. Hood
| Friday | Light snow showers decreasing. Light, becoming moderate snow arriving in the afternoon. Moderate wind becoming moderate to strong late in the day. |
Issued: 6:59 AM PST Friday, January 18, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Snow Level | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' | 3000' | 3000' |
| Friday Afternoon | Snow Level * | 4000' | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' |
| Friday Evening | Snow Level * | 5000' | 3500' | 3000' | 3500' | 3000' | 3000' | 4000' | 4500' |
| Friday Night | Snow Level * | 7500' | 5000' | 3000' | 3000' | 3500' | 5000' | 6000' | 8000' |
| Saturday Morning | Snow Level | 4000' | 4500' | 3500' | 4500' | 4000' | 4500' | 5000' | 6500' |
| Saturday Afternoon | Snow Level | 3500' | 3000' | 4500' | 4000' | 3500' | 3500' | 3500' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Friday Evening |
Snow Level 5000' (Easterly Flow *) |
| Friday Night |
Snow Level 7500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Snow Level 3500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3500' (Easterly Flow *) |
| Friday Night |
Snow Level 5000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4500' |
| Saturday Afternoon |
Snow Level 3000' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' (Easterly Flow *) |
| Friday Night |
Snow Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3500' (Easterly Flow *) |
| Friday Night |
Snow Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4500' |
| Saturday Afternoon |
Snow Level 4000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' (Easterly Flow *) |
| Friday Night |
Snow Level 3500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' (Easterly Flow *) |
| Friday Night |
Snow Level 5000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 4500' |
| Saturday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 4000' (Easterly Flow *) |
| Friday Night |
Snow Level 6000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 5000' |
| Saturday Afternoon |
Snow Level 3500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Snow Level 3000' |
| Friday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Friday Evening |
Snow Level 4500' (Easterly Flow *) |
| Friday Night |
Snow Level 8000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 6500' |
| Saturday 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
| Friday | Friday Night | Saturday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | 0.50 | LT 0.25 |
| Mt Baker Ski Area | 0.50 | 1.00 - 1.50 | 0.50 |
| Washington Pass | LT 0.10 | 0.50 | 0.25 - 0.50 |
| Leavenworth | 0 | 0.50 | LT 0.10 |
| Stevens Pass | LT 0.25 | 0.50 | 0.25 |
| Snoqualmie Pass | LT 0.25 | 0.75 | LT 0.10 |
| Mission Ridge | LT 0.10 | 0.75 | LT 0.10 |
| Crystal Mt | LT 0.25 | 0.75 | LT 0.10 |
| Paradise | 0.25 | 1.50 | LT 0.25 |
| White Pass | LT 0.25 | 0.75 | LT 0.25 |
| Mt Hood Meadows | 0.50 | 1.50 - 2.00 | LT 0.25 |
| Timberline | 0.50 | 2.00 | 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | 0.50 |
| Saturday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | 0.50 |
| Friday Night | 1.00 - 1.50 |
| Saturday | 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0.50 |
| Saturday | 0.25 - 0.50 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0.50 |
| Saturday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | 0.50 |
| Saturday | 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | 0.75 |
| Saturday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0.75 |
| Saturday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | 0.75 |
| Saturday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | 0.25 |
| Friday Night | 1.50 |
| Saturday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | 0.75 |
| Saturday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | 0.50 |
| Friday Night | 1.50 - 2.00 |
| Saturday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | 0.50 |
| Friday Night | 2.00 |
| Saturday | 0.25 |
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: 6:59 AM PST Friday, January 18, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | S 10 - 20 | S 10 - 20 | SW 10 - 20 | SSW 10 - 20 | SSW 15 - 25 |
| Friday Afternoon | SE 25 - 35 | SE 15 - 25 | ESE 10 - 20 | ESE 15 - 25 | SSE 25 - 35 |
| Friday Evening | S 35 - 50 | ESE 25 - 35 | ESE 25 - 35 | SSE 25 - 35 | SSW 30 - 45 |
| Friday Night | SW 30 - 45 | SSW 30 - 45 | SW 35 - 50 | SW 25 - 35 | SW 35 - 50 |
| Saturday Morning | SW 25 - 35 | SW 30 - 45 | SW 20 - 30 | SW 15 - 25 | WSW 15 - 25 |
| Saturday Afternoon | SW 20 - 30 | WSW 20 - 30 | WSW 20 - 30 | WSW 15 - 25 | WSW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SE 25 - 35 |
| Friday Evening | S 35 - 50 |
| Friday Night | SW 30 - 45 |
| Saturday Morning | SW 25 - 35 |
| Saturday Afternoon | SW 20 - 30 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SE 15 - 25 |
| Friday Evening | ESE 25 - 35 |
| Friday Night | SSW 30 - 45 |
| Saturday Morning | SW 30 - 45 |
| Saturday Afternoon | WSW 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | ESE 10 - 20 |
| Friday Evening | ESE 25 - 35 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | SW 20 - 30 |
| Saturday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | ESE 15 - 25 |
| Friday Evening | SSE 25 - 35 |
| Friday Night | SW 25 - 35 |
| Saturday Morning | SW 15 - 25 |
| Saturday Afternoon | WSW 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | SSW 15 - 25 |
| Friday Afternoon | SSE 25 - 35 |
| Friday Evening | SSW 30 - 45 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | WSW 15 - 25 |
| Saturday Afternoon | WSW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SE 25 - 35 |
| Friday Evening | S 35 - 50 |
| Friday Night | SW 30 - 45 |
| Saturday Morning | SW 25 - 35 |
| Saturday Afternoon | SW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SE 15 - 25 |
| Friday Evening | ESE 25 - 35 |
| Friday Night | SSW 30 - 45 |
| Saturday Morning | SW 30 - 45 |
| Saturday Afternoon | WSW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | ESE 10 - 20 |
| Friday Evening | ESE 25 - 35 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | SW 20 - 30 |
| Saturday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | SSW 10 - 20 |
| Friday Afternoon | ESE 15 - 25 |
| Friday Evening | SSE 25 - 35 |
| Friday Night | SW 25 - 35 |
| Saturday Morning | SW 15 - 25 |
| Saturday Afternoon | WSW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SSW 15 - 25 |
| Friday Afternoon | SSE 25 - 35 |
| Friday Evening | SSW 30 - 45 |
| Friday Night | SW 35 - 50 |
| Saturday Morning | WSW 15 - 25 |
| Saturday Afternoon | WSW 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 | |
|---|---|---|---|---|---|
| Friday Morning | SW 20 - 30 | WSW 20 - 30 | WSW 25 - 35 | WSW 20 - 30 | SW 15 - 25 |
| Friday Afternoon | S 15 - 25 | S 15 - 25 | S 20 - 30 | SSW 30 - 45 | SW 50 - 70 |
| Friday Evening | SW 40 - 60 | SW 35 - 50 | SW 45 - 65 | SW 45 - 65 | WSW 45 - 65 |
| Friday Night | SSW 45 - 65 | SW 45 - 65 | SW 50 - 70 | SW 50 - 70 | SW 55 - 75 |
| Saturday Morning | SW 30 - 45 | SW 40 - 60 | SW 40 - 60 | SW 40 - 60 | SW 60 - 80 |
| Saturday Afternoon | WSW 30 - 45 | WSW 35 - 50 | WSW 40 - 60 | WSW 35 - 50 | WSW 40 - 60 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | SW 20 - 30 |
| Friday Afternoon | S 15 - 25 |
| Friday Evening | SW 40 - 60 |
| Friday Night | SSW 45 - 65 |
| Saturday Morning | SW 30 - 45 |
| Saturday Afternoon | WSW 30 - 45 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | WSW 20 - 30 |
| Friday Afternoon | S 15 - 25 |
| Friday Evening | SW 35 - 50 |
| Friday Night | SW 45 - 65 |
| Saturday Morning | SW 40 - 60 |
| Saturday Afternoon | WSW 35 - 50 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | WSW 25 - 35 |
| Friday Afternoon | S 20 - 30 |
| Friday Evening | SW 45 - 65 |
| Friday Night | SW 50 - 70 |
| Saturday Morning | SW 40 - 60 |
| Saturday Afternoon | WSW 40 - 60 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | WSW 20 - 30 |
| Friday Afternoon | SSW 30 - 45 |
| Friday Evening | SW 45 - 65 |
| Friday Night | SW 50 - 70 |
| Saturday Morning | SW 40 - 60 |
| Saturday Afternoon | WSW 35 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 15 - 25 |
| Friday Afternoon | SW 50 - 70 |
| Friday Evening | WSW 45 - 65 |
| Friday Night | SW 55 - 75 |
| Saturday Morning | SW 60 - 80 |
| Saturday Afternoon | WSW 40 - 60 |
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, 2019
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