Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Thursday
A generally fair weather day will predominate as a weak ridge replaces a departing trough. The cool air moving in on a NW flow, combined with very weak instability or weak Vancouver Island convergence, will produce some decreasing low clouds and flurries across the Puget Sound and along the west slopes of the Cascades. No appreciable accumulation is expected. Winds will be light in the north and slightly breezier east of the Cascades and in the Mt. Hood area. Temperatures will be seasonable for the latter half of January.
Low clouds will clear out as a weakening system arriving from the WNW will spread increasing clouds overnight and a chance of light snow to the Olympics by Tuesday morning. As this system fizzles along the Washington coast Tuesday morning, another system will lift a warm front WNW during the day on Tuesday, bringing increasing light to moderate rain and snow with rising snow levels throughout the day. Moderate winds will increase throughout the day, gusting strong in some locations late in the day. Snoqualmie Pass should see snow through the early afternoon with a changeover to rain expected, while Stevens Pass will change over in the early evening hours.
Weather Forecast
Hurricane Ridge
| Monday | Clear in the morning with high clouds arriving late in the day. Cool. Slightly increasing light winds. |
Mt. Baker
| Monday | Partial sunshine with scattered low clouds. Cool. Slightly increasing light winds. |
Washington Pass and Leavenworth
| Monday | Clear and cool. Light winds. Light E wind through Washington Pass. |
Stevens and Snoqualmie Pass
| Monday | Mostly cloudy with very light flurries early. Cool. Pass winds light to moderate westerly. Cool. Light to moderate winds at 5,000 ft. |
Mt. Rainier, Crystal and White Pass
| Monday | Decreasing low clouds with a very slight chance of flurries early; becoming mostly sunny. Cool. Light to moderate winds. |
Mt. Hood
| Monday | Cloudy early, then becoming partly cloudy. Cool. Moderate winds. |
Issued: 7:03 AM PST Monday, January 21, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Freezing Level | 2500' | 1500' | 1000' | 1500' | 2000' | 2000' | 1500' | 2000' |
| Monday Afternoon | Freezing Level | 3000' | 2500' | 2000' | 2500' | 2500' | 2500' | 3000' | 3000' |
| Monday Evening | Freezing Level | 3500' | 2500' | 2000' | 2500' | 2000' | 2500' | 2500' | 2500' |
| Monday Night | Snow Level | 2500' | 1500' | 500' | 1000' | 1000' | 1500' | 2000' | 1500' |
| Tuesday Morning | Snow Level | 4500' | 1500' | 500' | 1500' | 1500' | 2000' | 2000' | 2000' |
| Tuesday Afternoon | Snow Level | 5500' | 2500' | 2500' | 2500' | 3500' | 4000' | 4500' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2500' |
| Monday Afternoon |
Freezing Level 3000' |
| Monday Evening |
Freezing Level 3500' |
| Monday Night |
Snow Level 2500' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 2500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Snow Level 1500' |
| Tuesday Morning |
Snow Level 1500' |
| Tuesday Afternoon |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1000' |
| Monday Afternoon |
Freezing Level 2000' |
| Monday Evening |
Freezing Level 2000' |
| Monday Night |
Snow Level 500' |
| Tuesday Morning |
Snow Level 500' |
| Tuesday Afternoon |
Snow Level 2500' |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 2500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 1500' |
| Tuesday Afternoon |
Snow Level 2500' |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2000' |
| Monday Afternoon |
Freezing Level 2500' |
| Monday Evening |
Freezing Level 2000' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 1500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2000' |
| Monday Afternoon |
Freezing Level 2500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Snow Level 1500' |
| Tuesday Morning |
Snow Level 2000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3000' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Snow Level 2000' |
| Tuesday Morning |
Snow Level 2000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Freezing Level 2000' |
| Monday Afternoon |
Freezing Level 3000' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Snow Level 1500' |
| Tuesday Morning |
Snow Level 2000' |
| Tuesday Afternoon |
Snow Level 5500' |
* 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 | Thursday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0.25 |
| Mt Baker Ski Area | 0 | 0 | LT 0.25 |
| Washington Pass | 0 | 0 | LT 0.25 |
| Leavenworth | 0 | 0 | LT 0.10 |
| Stevens Pass | 0 | 0 | 0.50 |
| Snoqualmie Pass | 0 | 0 | 0.75 |
| Mission Ridge | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | 0.25 |
| Paradise | 0 | 0 | 1.00 |
| White Pass | 0 | 0 | 0.50 |
| Mt Hood Meadows | 0 | 0 | 0.25 - 0.50 |
| Timberline | 0 | 0 | 0.25 - 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.10 |
| Thursday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | LT 0.25 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.50 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.75 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 1.00 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.50 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.25 - 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Thursday | 0.25 - 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: 7:03 AM PST Monday, January 21, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | WNW 0 - 10 | WSW 0 - 10 | W 5 - 15 | W 5 - 15 | WNW 15 - 25 |
| Monday Afternoon | WSW 5 - 15 | SW 5 - 15 | W 5 - 15 | W 5 - 15 | W 15 - 25 |
| Monday Evening | SSW 5 - 15 | SSW 5 - 15 | WSW 5 - 15 | WSW 5 - 15 | W 10 - 20 |
| Monday Night | S 15 - 25 | SSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 |
| Tuesday Morning | SSW 20 - 30 | S 10 - 20 | WSW 10 - 20 | SW 10 - 20 | SW 15 - 25 |
| Tuesday Afternoon | WSW 25 - 35 | SSE 10 - 20 | SW 20 - 30 | SW 20 - 30 | WSW 30 - 45 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | WNW 0 - 10 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | S 15 - 25 |
| Tuesday Morning | SSW 20 - 30 |
| Tuesday Afternoon | WSW 25 - 35 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | WSW 0 - 10 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | SSW 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | SSE 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Monday Evening | WSW 5 - 15 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | SW 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Monday Evening | WSW 5 - 15 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | SW 10 - 20 |
| Tuesday Afternoon | SW 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | WNW 15 - 25 |
| Monday Afternoon | W 15 - 25 |
| Monday Evening | W 10 - 20 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | SW 15 - 25 |
| Tuesday Afternoon | WSW 30 - 45 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | WNW 0 - 10 |
| Monday Afternoon | WSW 5 - 15 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | S 15 - 25 |
| Tuesday Morning | SSW 20 - 30 |
| Tuesday Afternoon | WSW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | WSW 0 - 10 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | SSW 5 - 15 |
| Monday Night | SSW 10 - 20 |
| Tuesday Morning | S 10 - 20 |
| Tuesday Afternoon | SSE 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Monday Evening | WSW 5 - 15 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | SW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Monday Evening | WSW 5 - 15 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | SW 10 - 20 |
| Tuesday Afternoon | SW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WNW 15 - 25 |
| Monday Afternoon | W 15 - 25 |
| Monday Evening | W 10 - 20 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | SW 15 - 25 |
| Tuesday Afternoon | WSW 30 - 45 |
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 | NNW 10 - 20 | NNW 15 - 25 | NW 25 - 35 | NW 25 - 35 | NNW 20 - 30 |
| Monday Afternoon | WNW 10 - 20 | NW 10 - 20 | NW 15 - 25 | NW 20 - 30 | NW 25 - 35 |
| Monday Evening | WSW 15 - 25 | WSW 10 - 20 | WNW 20 - 30 | WNW 15 - 25 | NW 15 - 25 |
| Monday Night | WSW 30 - 45 | WSW 25 - 35 | W 30 - 45 | W 30 - 45 | W 20 - 30 |
| Tuesday Morning | WSW 30 - 45 | W 35 - 50 | W 30 - 45 | W 30 - 45 | W 25 - 35 |
| Tuesday Afternoon | SW 30 - 45 | SW 20 - 30 | WSW 50 - 70 | W 50 - 70 | W 45 - 65 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | NNW 10 - 20 |
| Monday Afternoon | WNW 10 - 20 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | WSW 30 - 45 |
| Tuesday Morning | WSW 30 - 45 |
| Tuesday Afternoon | SW 30 - 45 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | NNW 15 - 25 |
| Monday Afternoon | NW 10 - 20 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | WSW 25 - 35 |
| Tuesday Morning | W 35 - 50 |
| Tuesday Afternoon | SW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | NW 25 - 35 |
| Monday Afternoon | NW 15 - 25 |
| Monday Evening | WNW 20 - 30 |
| Monday Night | W 30 - 45 |
| Tuesday Morning | W 30 - 45 |
| Tuesday Afternoon | WSW 50 - 70 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | NW 25 - 35 |
| Monday Afternoon | NW 20 - 30 |
| Monday Evening | WNW 15 - 25 |
| Monday Night | W 30 - 45 |
| Tuesday Morning | W 30 - 45 |
| Tuesday Afternoon | W 50 - 70 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | NNW 20 - 30 |
| Monday Afternoon | NW 25 - 35 |
| Monday Evening | NW 15 - 25 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | W 25 - 35 |
| Tuesday Afternoon | W 45 - 65 |
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 20, 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.