Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Wednesday
A weak cold front approaches the Pacific Northwest coastline and stalls over the Olympic Peninsula by late morning. It's spreading some mostly cloudy skies across the region and periods of light rain and snow across the Olympics and Mt. Baker areas. The front should bring some modest cooling during the morning hours (perhaps 5-10F in some areas west of the Cascade Crest). E flow through the mountain gaps should gradually decrease today and ramp up tonight as a stronger system approaches and incorporates the stalled frontal boundary. The stronger system should spread increasing light rain and snow across the region, with areas other than the Olympics and Mt. Baker experiencing precipitation mainly after midnight.
The cold front reaches the coastline by Tuesday morning and should progress through the Cascades by early afternoon bringing increasing moderate rain and snow (likely heavy at Mt. Baker) and moderate winds peaking Tuesday afternoon. E flow continues to keep the Passes cool while cooling aloft lowers snow levels from 2500-3500 ft to 2000-3000 ft by the end of the day as moderate post-frontal showers continue to bring accumulating snows. Mt. Baker looks to receive the most snowfall with this event, which should continue into Tuesday night.
Weather Forecast
Hurricane Ridge
| Monday | Periods of light rain, mainly during the morning hours. Otherwise, mostly cloudy. |
Mt. Baker
| Monday | Mostly cloudy with periods of light rain. |
Washington Pass and Leavenworth
| Monday | Mostly cloudy with a slight chance of a snow shower. |
Stevens and Snoqualmie Pass
| Monday | Mostly cloudy with a slight chance of very light rain or snow. Decreasing moderate ESE 5000 ft winds with decreasing light to moderate E winds at pass level. |
Mt. Rainier, Crystal and White Pass
| Monday | Mostly cloudy with a slight chance of very light rain or snow. |
Mt. Hood
| Monday | Mostly cloudy. |
Issued: 7:09 AM PST Monday, January 20, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level * | 5500' | 5500' | 4000' | 4000' | 4000' | 4000' | 5000' | 5000' |
| Monday Afternoon | Snow Level * | 5000' | 5000' | 4000' | 4500' | 4500' | 5000' | 5000' | 5500' |
| Monday Evening | Snow Level * | 4500' | 4500' | 4000' | 4000' | 4500' | 4500' | 5000' | 5500' |
| Monday Night | Snow Level * | 4000' | 4500' | 3500' | 3500' | 3500' | 4000' | 4500' | 4000' |
| Tuesday Morning | Snow Level * | 3500' | 3500' | 2500' | 2000' | 3000' | 3000' | 3500' | 3500' |
| Tuesday Afternoon | Snow Level * | 3000' | 2500' | 2500' | 2500' | 2500' | 2500' | 3000' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' (Easterly Flow *) |
| Monday Night |
Snow Level 4000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' (Easterly Flow *) |
| Monday Night |
Snow Level 4500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Monday Evening |
Snow Level 4000' (Easterly Flow *) |
| Monday Night |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 2500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Monday Evening |
Snow Level 4000' (Easterly Flow *) |
| Monday Night |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 2000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' (Easterly Flow *) |
| Monday Night |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' (Easterly Flow *) |
| Monday Night |
Snow Level 4000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 5000' (Easterly Flow *) |
| Monday Night |
Snow Level 4500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 5500' (Easterly Flow *) |
| Monday Night |
Snow Level 4000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 3500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 3000' (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
| Monday | Monday Night | Wednesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | 0.25 | 0.50 |
| Mt Baker Ski Area | LT 0.10 | 0.25 | 1.00 - 1.50 |
| Washington Pass | 0 | 0 | 0.25 |
| Leavenworth | 0 | 0 | LT 0.25 |
| Stevens Pass | 0 | LT 0.10 | 0.25 |
| Snoqualmie Pass | LT 0.10 | 0 | 0.25 |
| Mission Ridge | 0 | 0 | 0.25 |
| Crystal Mt | LT 0.10 | LT 0.10 | 0.50 |
| Paradise | LT 0.10 | LT 0.25 | 0.75 |
| White Pass | 0 | LT 0.10 | 0.25 |
| Mt Hood Meadows | 0 | LT 0.25 | 0.50 |
| Timberline | 0 | LT 0.25 | 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0.25 |
| Wednesday | 0.50 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0.25 |
| Wednesday | 1.00 - 1.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Wednesday | 0.25 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Wednesday | LT 0.25 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.10 |
| Wednesday | 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Wednesday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Wednesday | 0.25 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Wednesday | 0.50 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Wednesday | 0.75 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.10 |
| Wednesday | 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.25 |
| Wednesday | 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.25 |
| Wednesday | 0.50 |
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: 7:09 AM PST Monday, January 20, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | S 10 - 20 | SSE 10 - 20 | SE 15 - 25 | S 10 - 20 | S 0 - 10 |
| Monday Afternoon | S 10 - 20 | SSE 10 - 20 | ESE 10 - 20 | SE 10 - 20 | S 5 - 15 |
| Monday Evening | SSE 15 - 25 | ESE 10 - 20 | ESE 10 - 20 | ESE 10 - 20 | S 10 - 20 |
| Monday Night | SSE 20 - 30 | ESE 15 - 25 | E 15 - 25 | ESE 15 - 25 | SSE 15 - 25 |
| Tuesday Morning | S 20 - 30 | S 20 - 30 | S 15 - 25 | S 15 - 25 | SW 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 | S 20 - 30 | S 20 - 30 | SSW 20 - 30 | WSW 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | S 10 - 20 |
| Monday Evening | SSE 15 - 25 |
| Monday Night | SSE 20 - 30 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | SSE 10 - 20 |
| Monday Afternoon | SSE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | SE 15 - 25 |
| Monday Afternoon | ESE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | E 15 - 25 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | S 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | S 5 - 15 |
| Monday Evening | S 10 - 20 |
| Monday Night | SSE 15 - 25 |
| Tuesday Morning | SW 15 - 25 |
| Tuesday Afternoon | WSW 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | S 10 - 20 |
| Monday Evening | SSE 15 - 25 |
| Monday Night | SSE 20 - 30 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SSE 10 - 20 |
| Monday Afternoon | SSE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | SE 15 - 25 |
| Monday Afternoon | ESE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | E 15 - 25 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | S 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | S 10 - 20 |
| Monday Afternoon | SE 10 - 20 |
| Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | S 5 - 15 |
| Monday Evening | S 10 - 20 |
| Monday Night | SSE 15 - 25 |
| Tuesday Morning | SW 15 - 25 |
| Tuesday Afternoon | WSW 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 | |
|---|---|---|---|---|---|
| Monday Morning | SSW 30 - 40 | SW 25 - 35 | SSW 15 - 25 | SW 20 - 30 | SSW 20 - 30 |
| Monday Afternoon | SSW 25 - 35 | SW 25 - 35 | SW 20 - 30 | SW 20 - 30 | SW 20 - 30 |
| Monday Evening | S 20 - 30 | S 10 - 20 | SSW 15 - 25 | SSW 20 - 30 | SSW 25 - 35 |
| Monday Night | S 30 - 40 | S 10 - 20 | SSW 20 - 30 | S 35 - 45 | SW 40 - 55 |
| Tuesday Morning | SSW 30 - 40 | S 20 - 30 | SW 30 - 40 | WSW 30 - 40 | WSW 35 - 45 |
| Tuesday Afternoon | SSW 30 - 40 | SW 30 - 40 | WSW 40 - 55 | WSW 40 - 55 | WSW 40 - 55 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SSW 30 - 40 |
| Monday Afternoon | SSW 25 - 35 |
| Monday Evening | S 20 - 30 |
| Monday Night | S 30 - 40 |
| Tuesday Morning | SSW 30 - 40 |
| Tuesday Afternoon | SSW 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | SW 25 - 35 |
| Monday Afternoon | SW 25 - 35 |
| Monday Evening | S 10 - 20 |
| Monday Night | S 10 - 20 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | SW 30 - 40 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | SSW 15 - 25 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | SSW 15 - 25 |
| Monday Night | SSW 20 - 30 |
| Tuesday Morning | SW 30 - 40 |
| Tuesday Afternoon | WSW 40 - 55 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | SSW 20 - 30 |
| Monday Night | S 35 - 45 |
| Tuesday Morning | WSW 30 - 40 |
| Tuesday Afternoon | WSW 40 - 55 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | SSW 20 - 30 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | SSW 25 - 35 |
| Monday Night | SW 40 - 55 |
| Tuesday Morning | WSW 35 - 45 |
| Tuesday Afternoon | WSW 40 - 55 |
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 19, 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.