Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Tuesday & Friday
A broad trough sits over the West Coast, bringing cool weather to the region. Temperatures were in the 10's and 20's at most NWAC stations as of Tuesday morning. A weakening front approaches the PNW coastline on Tuesday. The front generally fizzles as it moves inland late today and tonight. Models agree that any associated snow will be very light, with the best chances of minor accumulations expected in the Olympics and Mt. Hood areas late Tuesday afternoon through Wednesday morning.
Winds across the region were light to calm as of Tuesday morning and it appears the weakening front will only produce some light SSW winds as it arrives.
Temperatures should be cool once again on Tuesday night, with cloud cover moderating temperatures somewhat.
On Wednesday, a low pressure offshore digs south into California, leaving the Pacific Northwest with some gradually clearing skies and continued cool temperatures as a shortwave ridge moves into the near-shore waters.
Weather Forecast
Hurricane Ridge
| Tuesday | Mostly cloudy with a chance of light snow showers in the afternoon. Minimal accumulation. |
Mt. Baker
| Tuesday | Partly cloudy early then increasing high clouds from late morning onwards. |
Washington Pass and Leavenworth
| Tuesday | Mostly clear early then increasing high clouds in the afternoon. |
Stevens and Snoqualmie Pass
| Tuesday | Partly cloudy early then increasing high clouds from late morning onwards. |
Mt. Rainier, Crystal and White Pass
| Tuesday | Partly cloudy early then increasing high clouds from late morning onwards. |
Mt. Hood
| Tuesday | Mostly clear early then increasing high clouds from late morning onwards. |
Issued: 6:53 AM PST Tuesday, December 24, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Morning | Freezing Level * | 2500' | 1000' | 500' | 1000' | 1000' | 1500' | 1500' | 2000' |
| Tuesday Afternoon | Freezing Level * | 3000' | 2500' | 2500' | 3000' | 3000' | 3000' | 3000' | 3500' |
| Tuesday Evening | Snow Level * | 3000' | 1500' | 500' | 1000' | 1500' | 2000' | 2000' | 3500' |
| Tuesday Night | Snow Level * | 2500' | 1000' | 500' | 1000' | 1000' | 2000' | 2000' | 2500' |
| Wednesday Morning | Freezing Level * | 2500' | 1000' | 1000' | 1000' | 1500' | 2000' | 2000' | 2500' |
| Wednesday Afternoon | Freezing Level * | 3000' | 3000' | 3000' | 2500' | 3000' | 3000' | 3500' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 3000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 2500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 2000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 2000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 2500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (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
| Tuesday | Tuesday Night | Friday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 |
| Paradise | 0 | LT 0.10 | 0 |
| White Pass | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | LT 0.10 | 0 |
| Timberline | 0 | LT 0.10 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | 0 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Friday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday | 0 |
| Tuesday 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: 6:53 AM PST Tuesday, December 24, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Morning | S 5 - 15 | S 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | W 5 - 15 |
| Tuesday Afternoon | S 5 - 15 | SW 0 - 10 | WSW 0 - 10 | WSW 0 - 15 | WSW 0 - 10 |
| Tuesday Evening | S 5 - 15 | SSE 0 - 10 | SW 0 - 10 | SW 0 - 10 | SW 0 - 10 |
| Tuesday Night | W 0 - 10 | WSW 0 - 10 | WNW 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Wednesday Morning | VAR 0 - 10 | E 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | E 0 - 10 |
| Wednesday Afternoon | NE 0 - 10 | NE 0 - 10 | N 0 - 10 | NNW 0 - 10 | E 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Morning | S 5 - 15 |
| Tuesday Afternoon | S 5 - 15 |
| Tuesday Evening | S 5 - 15 |
| Tuesday Night | W 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | NE 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 0 - 10 |
| Tuesday Evening | SSE 0 - 10 |
| Tuesday Night | WSW 0 - 10 |
| Wednesday Morning | E 0 - 10 |
| Wednesday Afternoon | NE 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Morning | VAR 0 - 10 |
| Tuesday Afternoon | WSW 0 - 10 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | WNW 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | N 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Morning | VAR 0 - 10 |
| Tuesday Afternoon | WSW 0 - 15 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | VAR 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | NNW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | WSW 0 - 10 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | VAR 0 - 10 |
| Wednesday Morning | E 0 - 10 |
| Wednesday Afternoon | E 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Morning | S 5 - 15 |
| Tuesday Afternoon | S 5 - 15 |
| Tuesday Evening | S 5 - 15 |
| Tuesday Night | W 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | NE 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 0 - 10 |
| Tuesday Evening | SSE 0 - 10 |
| Tuesday Night | WSW 0 - 10 |
| Wednesday Morning | E 0 - 10 |
| Wednesday Afternoon | NE 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Morning | VAR 0 - 10 |
| Tuesday Afternoon | WSW 0 - 10 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | WNW 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | N 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Morning | VAR 0 - 10 |
| Tuesday Afternoon | WSW 0 - 15 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | VAR 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | NNW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | WSW 0 - 10 |
| Tuesday Evening | SW 0 - 10 |
| Tuesday Night | VAR 0 - 10 |
| Wednesday Morning | E 0 - 10 |
| Wednesday Afternoon | E 0 - 10 |
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 | |
|---|---|---|---|---|---|
| Tuesday Morning | WSW 5 - 15 | WSW 5 - 15 | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 |
| Tuesday Afternoon | W 15 - 25 | WNW 10 - 20 | WNW 15 - 25 | WNW 15 - 25 | NW 10 - 20 |
| Tuesday Evening | W 5 - 15 | WNW 5 - 15 | W 10 - 20 | W 5 - 15 | W 5 - 15 |
| Tuesday Night | WSW 0 - 10 | W 5 - 15 | W 5 - 15 | WSW 0 - 10 | W 0 - 10 |
| Wednesday Morning | SW 0 - 10 | W 5 - 15 | W 5 - 15 | W 0 - 10 | VAR 0 - 10 |
| Wednesday Afternoon | VAR 0 - 10 | NW 5 - 15 | WNW 5 - 15 | WNW 5 - 15 | N 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Morning | WSW 5 - 15 |
| Tuesday Afternoon | W 15 - 25 |
| Tuesday Evening | W 5 - 15 |
| Tuesday Night | WSW 0 - 10 |
| Wednesday Morning | SW 0 - 10 |
| Wednesday Afternoon | VAR 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Morning | WSW 5 - 15 |
| Tuesday Afternoon | WNW 10 - 20 |
| Tuesday Evening | WNW 5 - 15 |
| Tuesday Night | W 5 - 15 |
| Wednesday Morning | W 5 - 15 |
| Wednesday Afternoon | NW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Tuesday Evening | W 10 - 20 |
| Tuesday Night | W 5 - 15 |
| Wednesday Morning | W 5 - 15 |
| Wednesday Afternoon | WNW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Tuesday Evening | W 5 - 15 |
| Tuesday Night | WSW 0 - 10 |
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | WNW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Morning | WSW 15 - 25 |
| Tuesday Afternoon | NW 10 - 20 |
| Tuesday Evening | W 5 - 15 |
| Tuesday Night | W 0 - 10 |
| Wednesday Morning | VAR 0 - 10 |
| Wednesday Afternoon | N 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Dec 23, 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.