Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday night through Saturday
The short-term weather forecast is pretty quiet. You'll experience clear and mild conditions over the next several days. A high-pressure ridge, centered just off the coast, continues to bring warmer air into the area and deflect any approaching storms. This ridge will control our weather until it breaks down over the weekend.
Clear skies tonight will allow for cold temperatures to develop at the surface creating inversions in mountain valleys and the Passes. However, warmer air remains at higher elevations. The sun will quickly warm all locations during the day and bring mild weather to the mountains. Areas south of I90, particularly around Mt Hood, should see stronger winds. Look for winds to decrease into Friday as the high-pressure shifts over Washington.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Clear and mild. Valley inversions possible. |
| Thursday | Sunny and mild. |
Mt. Baker
| Wednesday Night | Clear and mild. Valley inversions possible. |
| Thursday | Sunny and mild. |
Washington Pass and Leavenworth
| Wednesday Night | Clear and mild. Pass and valley inversions possible. |
| Thursday | Sunny and mild. |
Stevens and Snoqualmie Pass
| Wednesday Night | Clear and mild. Pass and valley inversions possible. Light east winds at Pass level. |
| Thursday | Sunny and mild. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Clear and mild. Pass and valley inversions possible. |
| Thursday | Sunny and mild. |
Mt. Hood
| Wednesday Night | Clear and mild. Valley inversions possible. Strong east winds. |
| Thursday | Sunny and mild. Strong east winds decreasing during the day. |
Issued: 1:24 PM PST Wednesday, November 20, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Evening | Freezing Level * | 10000' | 8500' | 6500' | 6500' | 7000' | 8500' | 8500' | 8000' |
| Wednesday Night | Freezing Level * | 10500' | 9000' | 8000' | 8000' | 8000' | 9000' | 9500' | 9500' |
| Thursday Morning | Freezing Level * | 10500' | 10000' | 9000' | 9000' | 9000' | 10000' | 10500' | 10000' |
| Thursday Afternoon | Freezing Level * | 10500' | 10000' | 10000' | 10500' | 10500' | 11000' | 11000' | 11000' |
| Thursday Evening | Freezing Level * | 10000' | 9000' | 9000' | 9500' | 9500' | 10000' | 10000' | 10500' |
| Thursday Night | Freezing Level | 8500' | 7500' | 7500' | 9000' | 9000' | 9000' | 9500' | 10000' |
| Friday Morning | Freezing Level | 9000' | 7000' | 7000' | 9000' | 9000' | 9000' | 9500' | 10000' |
| Friday Afternoon | Freezing Level | 9000' | 7500' | 8000' | 9500' | 9500' | 9500' | 10000' | 10500' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 8500' |
| Friday Morning |
Freezing Level 9000' |
| Friday Afternoon |
Freezing Level 9000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 7500' |
| Friday Morning |
Freezing Level 7000' |
| Friday Afternoon |
Freezing Level 7500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 7500' |
| Friday Morning |
Freezing Level 7000' |
| Friday Afternoon |
Freezing Level 8000' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 9000' |
| Friday Morning |
Freezing Level 9000' |
| Friday Afternoon |
Freezing Level 9500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 9000' |
| Friday Morning |
Freezing Level 9000' |
| Friday Afternoon |
Freezing Level 9500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 9000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 11000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 9000' |
| Friday Morning |
Freezing Level 9000' |
| Friday Afternoon |
Freezing Level 9500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 9500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 11000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 9500' |
| Friday Morning |
Freezing Level 9500' |
| Friday Afternoon |
Freezing Level 10000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 9500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 11000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 10000' |
| Friday Morning |
Freezing Level 10000' |
| Friday Afternoon |
Freezing Level 10500' |
* 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
| Wednesday Night | Saturday | Saturday Night | Saturday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 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: 1:24 PM PST Wednesday, November 20, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | E 5 - 15 | E 5 - 15 | E 10 - 20 | E 10 - 20 | E 30 - 40 |
| Wednesday Night | SSE 5 - 15 | S 5 - 15 | SE 10 - 20 | E 10 - 20 | E 30 - 40 |
| Thursday Morning | VAR 0 - 10 | S 0 - 10 | SE 10 - 20 | SE 10 - 20 | SE 25 - 35 |
| Thursday Afternoon | SW 0 - 10 | S 0 - 10 | SE 10 - 20 | SE 10 - 20 | SE 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | SSE 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | SW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | E 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | E 30 - 40 |
| Wednesday Night | E 30 - 40 |
| Thursday Morning | SE 25 - 35 |
| Thursday Afternoon | SE 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | SSE 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | SW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | E 10 - 20 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | E 30 - 40 |
| Wednesday Night | E 30 - 40 |
| Thursday Morning | SE 25 - 35 |
| Thursday Afternoon | SE 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | NE 5 - 15 | E 5 - 15 | E 15 - 25 | E 20 - 30 | E 40 - 55 |
| Wednesday Night | SW 5 - 15 | SW 10 - 20 | SE 15 - 25 | E 15 - 25 | E 30 - 40 |
| Thursday Morning | W 5 - 15 | W 5 - 15 | W 5 - 15 | E 5 - 15 | E 15 - 25 |
| Thursday Afternoon | W 5 - 15 | WSW 10 - 20 | W 5 - 15 | SW 5 - 15 | E 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | NE 5 - 15 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | SW 10 - 20 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | E 15 - 25 |
| Wednesday Night | SE 15 - 25 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | E 20 - 30 |
| Wednesday Night | E 15 - 25 |
| Thursday Morning | E 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | E 40 - 55 |
| Wednesday Night | E 30 - 40 |
| Thursday Morning | E 15 - 25 |
| Thursday Afternoon | E 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.
Issued: 1:24 PM PST Wednesday, November 20, 2019
Extended Weather Synopsis for Saturday night through Saturday
The high-pressure ridge that has been protecting us from approaching storms will break down over the weekend and open the storm door. We expect the first of several rounds of precipitation to arrive on Saturday. At the moment there are some discrepancies concerning the timing of this first system, but forecast models agree that we are in for a weather pattern change.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Freezing Level | 7000' - 8000' | 8000' - 9500' | 10000' - 11000' | |
| Saturday | Freezing Level | 5500' - 7000' | 7000' - 8500' | 9000' - 10500' | |
| Saturday Night | Snow Level | 4000' - 5000' | 4500' - 6000' | 6500' - 8000' | |
| Sunday | Snow Level | 3000' - 4000' | 3500' - 4500' | 4000' - 5000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Freezing Level 7000' - 8000' |
| Saturday |
Freezing Level 5500' - 7000' |
| Saturday Night |
Snow Level 4000' - 5000' |
| Sunday |
Snow Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Freezing Level 8000' - 9500' |
| Saturday |
Freezing Level 7000' - 8500' |
| Saturday Night |
Snow Level 4500' - 6000' |
| Sunday |
Snow Level 3500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Freezing Level 10000' - 11000' |
| Saturday |
Freezing Level 9000' - 10500' |
| Saturday Night |
Snow Level 6500' - 8000' |
| Sunday |
Snow Level 4000' - 5000' |
* 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Nov 19, 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.