Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Tuesday
The next 36 hours feature benign weather with a trough bringing cold temperatures across the region.
As of 6 AM on Sunday morning, temperatures at NWAC stations were generally falling into the 10's and 20's, with single digits for stations between 6000 ft and 7000 ft. Very light snow shower activity lingers for west slopes of the Cascades and should end for most of the Cascades by mid-morning, leaving partly cloudy skies and decreasing clouds with full sunshine developing east of the Cascade Crest. Generally light 5000 ft winds continue to decrease across the region.
A shortwave trough visible on the satellite Sunday morning should spread increased clouds and light snow showers into the west slopes of the Olympic Mountains late in the day and overnight. Hurricane Ridge might get some light snow showers Sunday evening before a chance for some light snow moves into the west slopes of the Cascades late Sunday night into Monday morning. This might touch off some light convergence from Snoqualmie to Stevens Pass areas, but NNW flow aloft behind the feature should mean the light to very light snow shower activity generally ends by afternoon.
Snow levels vary with diurnal warming from 0 up to around 1000 ft on both Sunday and Monday.
Weather Forecast
Hurricane Ridge
| Sunday | Partly cloudy with clouds increasing late in the day. A chance of isolated snow showers. |
Mt. Baker
| Sunday | Mostly cloudy early with a chance of very light snow, then becoming partly cloudy. |
Washington Pass and Leavenworth
| Sunday | Partly cloudy near the Cascade Crest with decreasing clouds. Clear skies likely further east. |
Stevens and Snoqualmie Pass
| Sunday | Very light snow possible early then becoming partly cloudy. Light W winds through the Passes. |
Mt. Rainier, Crystal and White Pass
| Sunday | Very light snow possible early, then becoming partly cloudy with decreasing clouds. |
Mt. Hood
| Sunday | Periods of light or very light snow until mid-morning, then becoming partly cloudy with decreasing clouds. |
Issued: 6:56 AM PST Sunday, February 2, 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 | 1000' | 500' | 0' | 500' | 500' | 500' | 500' | 1000' |
| Sunday Afternoon | Snow Level | 1500' | 1000' | 500' | 1000' | 500' | 1000' | 1000' | 1500' |
| Sunday Evening | Snow Level | 1000' | 500' | 0' | 500' | 500' | 500' | 500' | 1000' |
| Sunday Night | Snow Level | 500' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Monday Morning | Snow Level | 500' | 0' | 0' | 500' | 0' | 500' | 500' | 500' |
| Monday Afternoon | Snow Level | 1000' | 500' | 0' | 1000' | 500' | 1000' | 1000' | 1000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 1000' |
| Sunday Night |
Snow Level 500' |
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 500' |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 500' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 500' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 1000' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 500' |
| Monday Afternoon |
Snow Level 1000' |
* 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 | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0 | LT 0.10 | LT 0.10 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | LT 0.10 |
| Paradise | 0 | LT 0.10 | LT 0.10 |
| White Pass | 0 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.10 | 0 | LT 0.10 |
| Timberline | LT 0.10 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Tuesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Tuesday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Tuesday | LT 0.10 |
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: 6:56 AM PST Sunday, February 2, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | SSW 0 - 10 | SW 0 - 10 | W 5 - 15 | WSW 5 - 15 | W 5 - 15 |
| Sunday Afternoon | W 0 - 10 | SW 0 - 10 | WNW 5 - 15 | W 0 - 10 | W 5 - 15 |
| Sunday Evening | W 0 - 10 | SSW 0 - 10 | WNW 0 - 10 | W 0 - 10 | W 5 - 15 |
| Sunday Night | WNW 0 - 10 | W 0 - 10 | W 0 - 10 | W 0 - 10 | W 5 - 15 |
| Monday Morning | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 | W 0 - 10 | W 10 - 20 |
| Monday Afternoon | WNW 0 - 10 | W 0 - 10 | W 5 - 15 | W 0 - 10 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | SSW 0 - 10 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 0 - 10 |
| Sunday Night | WNW 0 - 10 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | WNW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | SW 0 - 10 |
| Sunday Afternoon | SW 0 - 10 |
| Sunday Evening | SSW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | WNW 5 - 15 |
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | WSW 5 - 15 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | SSW 0 - 10 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 0 - 10 |
| Sunday Night | WNW 0 - 10 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | WNW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | SW 0 - 10 |
| Sunday Afternoon | SW 0 - 10 |
| Sunday Evening | SSW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | WNW 5 - 15 |
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | WSW 5 - 15 |
| Sunday Afternoon | W 0 - 10 |
| Sunday Evening | W 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | W 5 - 15 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 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 | WSW 10 - 20 | NNW 0 - 10 | NW 10 - 20 | WNW 10 - 20 | WNW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 | WSW 0 - 10 | NW 10 - 20 | NW 10 - 20 | NW 15 - 25 |
| Sunday Evening | W 15 - 25 | W 10 - 20 | NW 10 - 20 | NW 10 - 20 | NNW 15 - 25 |
| Sunday Night | W 15 - 25 | W 15 - 25 | W 15 - 25 | W 15 - 25 | NW 10 - 20 |
| Monday Morning | WNW 5 - 15 | WNW 5 - 15 | NW 10 - 20 | NW 10 - 20 | NW 15 - 25 |
| Monday Afternoon | WNW 5 - 15 | WNW 5 - 15 | NW 10 - 20 | NW 10 - 20 | NNW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Evening | W 15 - 25 |
| Sunday Night | W 15 - 25 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | NNW 0 - 10 |
| Sunday Afternoon | WSW 0 - 10 |
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 15 - 25 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | NW 10 - 20 |
| Sunday Afternoon | NW 10 - 20 |
| Sunday Evening | NW 10 - 20 |
| Sunday Night | W 15 - 25 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | NW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | WNW 10 - 20 |
| Sunday Afternoon | NW 10 - 20 |
| Sunday Evening | NW 10 - 20 |
| Sunday Night | W 15 - 25 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | NW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | WNW 10 - 20 |
| Sunday Afternoon | NW 15 - 25 |
| Sunday Evening | NNW 15 - 25 |
| Sunday Night | NW 10 - 20 |
| Monday Morning | NW 15 - 25 |
| Monday Afternoon | NNW 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 1, 2020
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.