Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Monday night through Wednesday
Dry conditions with periods of high clouds will continue overnight with a strong upper level ridge anchored offshore. The ridge will begin to buckle as a fast moving but weak frontal system in NW flow aloft approaches the area overnight. Light precipitation should spread over the Olympics and north Cascades by late Tuesday morning. Light precipitation is expected for the central and south Washington Cascades later in the day while dry conditions prevail for Mt. Hood and the east slopes of the Cascades. The front will bring an increase in winds, especially in the alpine across the region. Low level clouds will fill in from north to south across the west slopes of the Cascades during the day.
Showers will become scattered and decrease Tuesday night. Low-level clouds and moisture will keep conditions mostly cloudy and perhaps drippy along the west slopes of the Cascades on Wednesday. More sunshine can be found further east of the Cascade crest and down near Mt. Hood on Wednesday.
Weather Forecast
Hurricane Ridge
| Monday Night | Mostly clear, becoming mostly cloudy with increasing high clouds after midnight. |
| Tuesday | Cloudy with light rain and snow developing in the morning. |
Mt. Baker
| Monday Night | Mostly clear, becoming mostly cloudy with increasing high clouds after midnight. |
| Tuesday | Cloudy with light rain and snow developing in the morning. |
Washington Pass and Leavenworth
| Monday Night | Mostly clear, becoming mostly cloudy with increasing high clouds after midnight. |
| Tuesday | Partly cloudy in the morning becoming mostly cloudy in the afternoon. Slight chance of very light rain or snow near Washington Pass in the afternoon. Strong to extreme alpine winds. |
Stevens and Snoqualmie Pass
| Monday Night | Mostly clear, becoming mostly cloudy with increasing high clouds after midnight. Light west winds at Pass level. |
| Tuesday | Partly cloudy in the morning then becoming cloudy with light rain or snow developing in the afternoon. Moderate west winds at Pass level, stronger in the alpine. |
Mt. Rainier, Crystal and White Pass
| Monday Night | Mostly clear, becoming partly cloudy with increasing high clouds after midnight. |
| Tuesday | Mostly sunny in the morning, becoming cloudy in the afternoon with a chance of light rain or snow. Strong winds, especially in the alpine. |
Mt. Hood
| Monday Night | Mostly clear, becoming partly cloudy with increasing high clouds late. |
| Tuesday | Mostly sunny in the morning becoming mostly cloudy in the afternoon. Strong to extreme west winds. |
Issued: 1:50 PM PST Monday, February 10, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Evening | Freezing Level | 8000' | 2500' | 2500' | 3500' | 3000' | 4500' | 6000' | 7000' |
| Monday Night | Freezing Level | 5500' | 2000' | 2000' | 5000' | 2500' | 2500' | 4000' | 9000' |
| Tuesday Morning | Freezing Level | 4500' | 2000' | 2000' | 2000' | 2500' | 2500' | 3000' | 7500' |
| Tuesday Afternoon | Snow Level | 4500' | 3000' | 4000' | 4500' | 3500' | 3500' | 4500' | 4500' |
| Tuesday Evening | Snow Level | 4000' | 3000' | 2500' | 3000' | 3000' | 3000' | 4500' | 4500' |
| Tuesday Night | Snow Level | 3000' | 2500' | 2000' | 2500' | 2500' | 2500' | 2500' | 3000' |
| Wednesday Morning | Snow Level | 3500' | 3000' | 4000' | 4000' | 3500' | 3500' | 4000' | 4500' |
| Wednesday Afternoon | Snow Level | 3500' | 3000' | 4000' | 4000' | 3500' | 3500' | 4000' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening |
Freezing Level 8000' |
| Monday Night |
Freezing Level 5500' |
| Tuesday Morning |
Freezing Level 4500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 4000' |
| Tuesday Night |
Snow Level 3000' |
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 3500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 2000' |
| Tuesday Morning |
Freezing Level 2000' |
| Tuesday Afternoon |
Snow Level 3000' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3000' |
| Wednesday Afternoon |
Snow Level 3000' |
| Washington Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 2000' |
| Tuesday Morning |
Freezing Level 2000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Tuesday Evening |
Snow Level 2500' |
| Tuesday Night |
Snow Level 2000' |
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Monday Evening |
Freezing Level 3500' |
| Monday Night |
Freezing Level 5000' |
| Tuesday Morning |
Freezing Level 2000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Stevens Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 3000' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 2500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 2500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Evening |
Freezing Level 6000' |
| Monday Night |
Freezing Level 4000' |
| Tuesday Morning |
Freezing Level 3000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 4500' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening |
Freezing Level 7000' |
| Monday Night |
Freezing Level 9000' |
| Tuesday Morning |
Freezing Level 7500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 4500' |
| Tuesday Night |
Snow Level 3000' |
| Wednesday Morning |
Snow Level 4500' |
| Wednesday Afternoon |
Snow Level 4500' |
* 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 Night | Tuesday | Tuesday Night | Wednesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0 | LT 0.25 | LT 0.10 | 0 |
| Stevens Pass | 0 | LT 0.10 | LT 0.10 | 0 |
| Snoqualmie Pass | 0 | LT 0.10 | LT 0.25 | 0 |
| Crystal Mt | 0 | 0 | LT 0.10 | 0 |
| Paradise | 0 | LT 0.10 | LT 0.10 | 0 |
| White Pass | 0 | 0 | LT 0.10 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | LT 0.10 | 0 |
| Timberline | 0 | 0 | LT 0.10 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.25 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Wednesday | 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: 1:50 PM PST Monday, February 10, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Evening | N 0 - 10 | SW 0 - 10 | NW 0 - 10 | VAR 0 - 10 | S 0 - 10 |
| Monday Night | W 5 - 15 | SW 0 - 10 | NW 5 - 15 | W 5 - 15 | WNW 10 - 20 |
| Tuesday Morning | W 10 - 20 | SW 5 - 15 | WNW 10 - 20 | W 10 - 20 | WNW 20 - 30 |
| Tuesday Afternoon | SW 5 - 15 | WNW 15 - 25 | WNW 15 - 25 | WNW 15 - 25 | WNW 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening | N 0 - 10 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening | SW 0 - 10 |
| Monday Night | SW 0 - 10 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | WNW 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening | NW 0 - 10 |
| Monday Night | NW 5 - 15 |
| Tuesday Morning | WNW 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening | S 0 - 10 |
| Monday Night | WNW 10 - 20 |
| Tuesday Morning | WNW 20 - 30 |
| Tuesday Afternoon | WNW 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Evening | N 0 - 10 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | SW 0 - 10 |
| Monday Night | SW 0 - 10 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | WNW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | NW 0 - 10 |
| Monday Night | NW 5 - 15 |
| Tuesday Morning | WNW 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | WNW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | S 0 - 10 |
| Monday Night | WNW 10 - 20 |
| Tuesday Morning | WNW 20 - 30 |
| Tuesday Afternoon | WNW 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 Evening | NW 15 - 25 | NW 20 - 30 | NW 20 - 30 | NW 15 - 25 | NW 10 - 20 |
| Monday Night | WNW 25 - 35 | WNW 40 - 50 | NW 35 - 45 | NW 30 - 40 | NW 25 - 35 |
| Tuesday Morning | WNW 40 - 50 | WNW 50 - 60 | NW 50 - 60 | NW 50 - 60 | NW 40 - 50 |
| Tuesday Afternoon | NW 25 - 35 | NW 25 - 35 | NW 50 - 60 | NW 40 - 50 | NW 50 - 60 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | NW 15 - 25 |
| Monday Night | WNW 25 - 35 |
| Tuesday Morning | WNW 40 - 50 |
| Tuesday Afternoon | NW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Evening | NW 20 - 30 |
| Monday Night | WNW 40 - 50 |
| Tuesday Morning | WNW 50 - 60 |
| Tuesday Afternoon | NW 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | NW 20 - 30 |
| Monday Night | NW 35 - 45 |
| Tuesday Morning | NW 50 - 60 |
| Tuesday Afternoon | NW 50 - 60 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | NW 15 - 25 |
| Monday Night | NW 30 - 40 |
| Tuesday Morning | NW 50 - 60 |
| Tuesday Afternoon | NW 40 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | NW 10 - 20 |
| Monday Night | NW 25 - 35 |
| Tuesday Morning | NW 40 - 50 |
| Tuesday Afternoon | NW 50 - 60 |
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.
Issued: 1:50 PM PST Monday, February 10, 2020
Extended Weather Synopsis for Wednesday night through Friday
If you found the sunshine and dry weather disorienting, then you'll be relieved to know the jet stream will be dropping south over the Pacific Northwest beginning Thursday to deliver the first in a series of Pacific frontal systems in a progressive pattern. After the initial precipitation associated with the frontal passage on Thursday, a trailing upper-level trough should invigorate showers along the west slopes of the Cascades and Mt. Hood Thursday night with a high likelihood for additional significant snowfall accumulations. Weak upper-level ridging will shift over the area on Friday as scattered showers wind down. A stronger and more potent storm is poised to affect all areas over the weekend.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Wednesday Night | Freezing Level | 2500' - 3500' | 3000' - 4000' | 3500' - 4500' | |
| Thursday | Snow Level | 2000' - 3000' | 2000' - 3000' | 2500' - 3500' | |
| Thursday Night | Snow Level | 1000' - 2000' | 1000' - 2000' | 1500' - 2500' | |
| Friday | Snow Level | 1000' - 2000' | 1000' - 2000' | 1500' - 2500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 2500' - 3500' |
| Thursday |
Snow Level 2000' - 3000' |
| Thursday Night |
Snow Level 1000' - 2000' |
| Friday |
Snow Level 1000' - 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 3000' - 4000' |
| Thursday |
Snow Level 2000' - 3000' |
| Thursday Night |
Snow Level 1000' - 2000' |
| Friday |
Snow Level 1000' - 2000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 3500' - 4500' |
| Thursday |
Snow Level 2500' - 3500' |
| Thursday Night |
Snow Level 1500' - 2500' |
| Friday |
Snow Level 1500' - 2500' |
* 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Feb. 10, 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.