Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Friday
The Pacific Northwest sits near the western edge of a cool upper trough over the Western US. A moderate jetstream is bringing cool air south along the west coast from Alaska to California with a cool northwest flow pattern continuing across the region through the forecast period. Expect below normal temperatures and snow/freezing levels well below pass level.
A front passed and dropped SE of the region and continues to bring snow showers off a moderate, but decreasing NW flow to the Mt. Hood area where 2-4" of additional snow could fall. Meanwhile, a convergence zone has sagged south and is weakening and bringing some light snow to the Mt. Rainier area, particularly the Crystal area, but this feature should lose organization with very light snow showers continuing in the Mt. Rainier area through the early afternoon. Many areas will see some sun.
A weak surface boundary will bring colder air east of the Cascades during the evening hours and may spark some snow showers along the east slopes of the Cascades as it moves southward. This feature will shift pass flow easterly.
A weak ridge of high pressure will nose into the region on Thursday, bringing generally sunny weather and light winds to the region.
Weather Forecast
Hurricane Ridge
| Wednesday | Flurries ending early, then becoming partly cloudy and mostly clearing in the afternoon. Cool. Light winds. |
Mt. Baker
| Wednesday | Partly cloudy. Cool. Light winds. |
Washington Pass and Leavenworth
| Wednesday | Partly cloudy. Cool. Light winds. |
Stevens and Snoqualmie Pass
| Wednesday | Chance of flurries in the morning. Mostly cloudy. Cool. |
Mt. Rainier, Crystal and White Pass
| Wednesday | Light snow in a weakening convergence zone favoring Crystal decreasing and ending. Cool. Light wind. |
Mt. Hood
| Wednesday | Decreasing light snow showers mostly in the morning hours with increasing sun breaks throughout the day. Cool. Moderate winds in the morning decreasing and becoming light by afternoon. |
Issued: 7:00 AM PST Wednesday, February 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 Morning | Snow Level | 500' | 0' | 0' | 0' | 500' | 500' | 500' | 1000' |
| Wednesday Afternoon | Snow Level | 500' | 1000' | 1000' | 1000' | 1500' | 1000' | 1500' | 1500' |
| Wednesday Evening | Snow Level | 500' | 1000' | 1000' | 1000' | 1500' | 1000' | 1000' | 1500' |
| Wednesday Night | Snow Level * | 500' | 0' | 0' | 0' | 0' | 500' | 0' | 0' |
| Thursday Morning | Freezing Level * | 1000' | 500' | 0' | 500' | 500' | 1000' | 1000' | 500' |
| Thursday Afternoon | Freezing Level | 2000' | 1500' | 1500' | 2000' | 2000' | 2000' | 2500' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' |
| Wednesday Afternoon |
Snow Level 500' |
| Wednesday Evening |
Snow Level 500' |
| Wednesday Night |
Snow Level 500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 0' |
| Wednesday Afternoon |
Snow Level 1000' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 0' |
| Wednesday Afternoon |
Snow Level 1000' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 0' |
| Wednesday Afternoon |
Snow Level 1000' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' |
| Wednesday Afternoon |
Snow Level 1500' |
| Wednesday Evening |
Snow Level 1500' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' |
| Wednesday Afternoon |
Snow Level 1000' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 500' |
| Wednesday Afternoon |
Snow Level 1500' |
| Wednesday Evening |
Snow Level 1000' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning |
Snow Level 1000' |
| Wednesday Afternoon |
Snow Level 1500' |
| Wednesday Evening |
Snow Level 1500' |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' |
* 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 | Wednesday Night | Friday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | LT 0.10 | 0 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | 0 |
| Mission Ridge | LT 0.10 | LT 0.10 | 0 |
| Crystal Mt | LT 0.25 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 |
| White Pass | LT 0.10 | LT 0.10 | 0 |
| Mt Hood Meadows | 0.25 | LT 0.10 | 0 |
| Timberline | 0.25 - 0.50 | LT 0.10 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Friday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday | 0 |
| Wednesday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Friday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday | 0.25 - 0.50 |
| Wednesday 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: 7:00 AM PST Wednesday, February 20, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Morning | NNW 0 - 10 | ENE 0 - 10 | WNW 0 - 10 | WNW 0 - 10 | WNW 20 - 30 |
| Wednesday Afternoon | N 0 - 10 | NNE 0 - 10 | W 0 - 10 | NW 5 - 15 | W 5 - 15 |
| Wednesday Evening | NNE 10 - 20 | NNE 10 - 20 | ENE 0 - 10 | ENE 0 - 10 | ENE 0 - 10 |
| Wednesday Night | N 10 - 20 | NE 10 - 20 | VAR 0 - 10 | ENE 0 - 10 | ENE 10 - 20 |
| Thursday Morning | N 5 - 15 | NE 5 - 15 | E 0 - 10 | NE 0 - 10 | ENE 10 - 20 |
| Thursday Afternoon | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 | ENE 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Morning | NNW 0 - 10 |
| Wednesday Afternoon | N 0 - 10 |
| Wednesday Evening | NNE 10 - 20 |
| Wednesday Night | N 10 - 20 |
| Thursday Morning | N 5 - 15 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Morning | ENE 0 - 10 |
| Wednesday Afternoon | NNE 0 - 10 |
| Wednesday Evening | NNE 10 - 20 |
| Wednesday Night | NE 10 - 20 |
| Thursday Morning | NE 5 - 15 |
| Thursday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Morning | WNW 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | E 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Morning | WNW 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | ENE 0 - 10 |
| Thursday Morning | NE 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Morning | WNW 20 - 30 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | ENE 10 - 20 |
| Thursday Morning | ENE 10 - 20 |
| Thursday Afternoon | ENE 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Morning | NNW 0 - 10 |
| Wednesday Afternoon | N 0 - 10 |
| Wednesday Evening | NNE 10 - 20 |
| Wednesday Night | N 10 - 20 |
| Thursday Morning | N 5 - 15 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | ENE 0 - 10 |
| Wednesday Afternoon | NNE 0 - 10 |
| Wednesday Evening | NNE 10 - 20 |
| Wednesday Night | NE 10 - 20 |
| Thursday Morning | NE 5 - 15 |
| Thursday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | E 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | ENE 0 - 10 |
| Thursday Morning | NE 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | WNW 20 - 30 |
| Wednesday Afternoon | W 5 - 15 |
| Wednesday Evening | ENE 0 - 10 |
| Wednesday Night | ENE 10 - 20 |
| Thursday Morning | ENE 10 - 20 |
| Thursday Afternoon | ENE 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 | |
|---|---|---|---|---|---|
| Wednesday Morning | NE 10 - 20 | N 10 - 20 | NNW 10 - 20 | NNW 15 - 25 | NW 20 - 30 |
| Wednesday Afternoon | NNE 15 - 25 | N 10 - 20 | ENE 5 - 15 | ENE 5 - 15 | NW 10 - 20 |
| Wednesday Evening | NNE 20 - 30 | N 15 - 25 | N 5 - 15 | NE 5 - 15 | NE 15 - 25 |
| Wednesday Night | NNE 15 - 25 | N 10 - 20 | N 5 - 15 | NNW 10 - 20 | N 15 - 25 |
| Thursday Morning | N 10 - 20 | NNW 5 - 15 | N 10 - 20 | N 10 - 20 | N 15 - 25 |
| Thursday Afternoon | W 5 - 15 | W 10 - 20 | NW 10 - 20 | NW 10 - 20 | N 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon | NNE 15 - 25 |
| Wednesday Evening | NNE 20 - 30 |
| Wednesday Night | NNE 15 - 25 |
| Thursday Morning | N 10 - 20 |
| Thursday Afternoon | W 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Morning | N 10 - 20 |
| Wednesday Afternoon | N 10 - 20 |
| Wednesday Evening | N 15 - 25 |
| Wednesday Night | N 10 - 20 |
| Thursday Morning | NNW 5 - 15 |
| Thursday Afternoon | W 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Morning | NNW 10 - 20 |
| Wednesday Afternoon | ENE 5 - 15 |
| Wednesday Evening | N 5 - 15 |
| Wednesday Night | N 5 - 15 |
| Thursday Morning | N 10 - 20 |
| Thursday Afternoon | NW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Morning | NNW 15 - 25 |
| Wednesday Afternoon | ENE 5 - 15 |
| Wednesday Evening | NE 5 - 15 |
| Wednesday Night | NNW 10 - 20 |
| Thursday Morning | N 10 - 20 |
| Thursday Afternoon | NW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Morning | NW 20 - 30 |
| Wednesday Afternoon | NW 10 - 20 |
| Wednesday Evening | NE 15 - 25 |
| Wednesday Night | N 15 - 25 |
| Thursday Morning | N 15 - 25 |
| Thursday Afternoon | N 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Feb 18, 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.