Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Wednesday & Thursday
Our persistent upper ridge and warm airmass will slightly re-amplify Wednesday through Thursday morning. Offshore surface flow will continue through Thursday afternoon with a surface high pressure located east of the Cascades. On Thursday night, a weak cold front and shortwave ridge will begin to flatten our ridge and will be in our near coastal waters by morning. Minor precipitation might be seen in the Olympics and North Cascades by early Friday.
Weather Forecast
Olympics
Wednesday |
Mostly sunny with scattered high clouds. |
Wednesday Night |
Mostly clear with scattered high clouds. |
Thursday |
Mostly sunny with some high clouds at times. |
Thursday Night |
Increasing and lowering high clouds. Light rain possible after midnight. |
Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
Wednesday |
Mostly sunny with scattered high clouds. Low clouds in the passes, mainly Snoqualmie. |
Wednesday Night |
Mostly clear with scattered high clouds. Low clouds in the passes, mainly Snoqualmie. |
Thursday |
Mostly sunny with with some high clouds in the afternoon. Low clouds in the passes, mainly Snoqualmie. |
Thursday Night |
Increasing and lowering high clouds, especially north and central parts. Light rain possible after midnght, especially north. Low clouds possible in the passes. |
East slopes of the Washington Cascades
Wednesday |
Mostly sunny. Low clouds in the morning, decreasing by afternoon. |
Wednesday Night |
Mostly clear with low clouds at lower elevations reforming. |
Thursday |
Mostly sunny with with some high clouds in the afternoon. Low clouds at lower elevations. |
Thursday Night |
Increasing mid and high clouds with low clouds at lower elevations. |
Mt. Hood Area
Wednesday |
Mostly sunny with scattered high clouds. |
Wednesday Night |
Mostly clear. |
Thursday |
Mostly sunny with with some high clouds mainly in the afternoon. |
Thursday Night |
Mostly clear with increasing high clouds. |
Issued: 7:01 AM PST Wednesday, December 13, 2017
Snow/Freezing Level (ft)
Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
---|---|---|---|---|---|---|---|---|---|
Wednesday Morning | Freezing Level * | 11000' | 9000' | 7000' | ' | ' | 1000' | ' | 12000' |
Wednesday Afternoon | Freezing Level * | 12000' | 11000' | 10000' | ' | ' | 12000' | ' | 13000' |
Wednesday Night | Freezing Level * | 12500' | 11500' | 11500' | ' | ' | 12000' | ' | 13000' |
Thursday Morning | Freezing Level * | 12500' | 12000' | 12000' | ' | ' | 12500' | ' | 13000' |
Thursday Afternoon | Freezing Level * | 12000' | 11500' | 11500' | ' | ' | 12000' | ' | 12500' |
Thursday Night | Snow Level * | 7500' | 6000' | 7000' | ' | ' | 8000' | ' | 10500' |
Hurricane Ridge | Elevation |
---|---|
Wednesday Morning |
Freezing Level 11000' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level 12000' (Easterly Flow *) |
Wednesday Night |
Freezing Level 12500' (Easterly Flow *) |
Thursday Morning |
Freezing Level 12500' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level 12000' (Easterly Flow *) |
Thursday Night |
Snow Level 7500' (Easterly Flow *) |
Mt. Baker | Elevation |
---|---|
Wednesday Morning |
Freezing Level 9000' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level 11000' (Easterly Flow *) |
Wednesday Night |
Freezing Level 11500' (Easterly Flow *) |
Thursday Morning |
Freezing Level 12000' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level 11500' (Easterly Flow *) |
Thursday Night |
Snow Level 6000' (Easterly Flow *) |
Washington Pass | Elevation |
---|---|
Wednesday Morning |
Freezing Level 7000' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
Wednesday Night |
Freezing Level 11500' (Easterly Flow *) |
Thursday Morning |
Freezing Level 12000' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level 11500' (Easterly Flow *) |
Thursday Night |
Snow Level 7000' (Easterly Flow *) |
Leavenworth | Elevation |
---|---|
Wednesday Morning |
Freezing Level ' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level ' (Easterly Flow *) |
Wednesday Night |
Freezing Level ' (Easterly Flow *) |
Thursday Morning |
Freezing Level ' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level ' (Easterly Flow *) |
Thursday Night |
Snow Level ' (Easterly Flow *) |
Stevens Pass | Elevation |
---|---|
Wednesday Morning |
Freezing Level ' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level ' (Easterly Flow *) |
Wednesday Night |
Freezing Level ' (Easterly Flow *) |
Thursday Morning |
Freezing Level ' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level ' (Easterly Flow *) |
Thursday Night |
Snow Level ' (Easterly Flow *) |
Snoqualmie Pass | Elevation |
---|---|
Wednesday Morning |
Freezing Level 1000' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level 12000' (Easterly Flow *) |
Wednesday Night |
Freezing Level 12000' (Easterly Flow *) |
Thursday Morning |
Freezing Level 12500' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level 12000' (Easterly Flow *) |
Thursday Night |
Snow Level 8000' (Easterly Flow *) |
Mt. Rainier & Crystal | Elevation |
---|---|
Wednesday Morning |
Freezing Level ' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level ' (Easterly Flow *) |
Wednesday Night |
Freezing Level ' (Easterly Flow *) |
Thursday Morning |
Freezing Level ' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level ' (Easterly Flow *) |
Thursday Night |
Snow Level ' (Easterly Flow *) |
Mt. Hood | Elevation |
---|---|
Wednesday Morning |
Freezing Level 12000' (Easterly Flow *) |
Wednesday Afternoon |
Freezing Level 13000' (Easterly Flow *) |
Wednesday Night |
Freezing Level 13000' (Easterly Flow *) |
Thursday Morning |
Freezing Level 13000' (Easterly Flow *) |
Thursday Afternoon |
Freezing Level 12500' (Easterly Flow *) |
Thursday Night |
Snow Level 10500' (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
Thursday | Thursday | |
---|---|---|
Hurricane Ridge | LT 0.10 | LT 0.10 |
Mt Baker Ski Area | LT 0.10 | LT 0.10 |
Washington Pass | LT 0.10 | LT 0.10 |
Stevens Pass | LT 0.10 | LT 0.10 |
Snoqualmie Pass | LT 0.10 | LT 0.10 |
Mission Ridge | LT 0.10 | LT 0.10 |
Crystal Mt | LT 0.10 | LT 0.10 |
Paradise | LT 0.10 | LT 0.10 |
White Pass | LT 0.10 | LT 0.10 |
Mt Hood Meadows | LT 0.10 | LT 0.10 |
Timberline | LT 0.10 | 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: 7:01 AM PST Wednesday, December 13, 2017
Free Winds at 5000' (mph)
Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
---|---|---|---|---|---|
Wednesday Morning | NNE 5 - 10 | NE 5 - 10 | ENE 5 - 10 | --- - | ENE 5 - 10 |
Wednesday Afternoon | ENE 5 - 10 | ENE 5 - 10 | ENE 10 - 15 | --- - | ENE 10 - 15 |
Wednesday Night | VAR 0 - 10 | VAR 0 - 10 | ENE 0 - 10 | --- - | ENE 5 - 10 |
Thursday Morning | WNW 5 - 10 | N 0 - 10 | ENE 5 - 10 | --- - | NE 5 - 10 |
Thursday Afternoon | W 5 - 10 | WSW 5 - 10 | SW 0 - 10 | --- - | S 0 - 10 |
Thursday Night | W 15 - 20 | WSW 10 - 15 | WSW 15 - 20 | --- - | W 15 - 20 |
Hurricane Ridge | Elevation |
---|---|
Wednesday Morning | NNE 5 - 10 |
Wednesday Afternoon | ENE 5 - 10 |
Wednesday Night | VAR 0 - 10 |
Thursday Morning | WNW 5 - 10 |
Thursday Afternoon | W 5 - 10 |
Thursday Night | W 15 - 20 |
Mt. Baker | Elevation |
---|---|
Wednesday Morning | NE 5 - 10 |
Wednesday Afternoon | ENE 5 - 10 |
Wednesday Night | VAR 0 - 10 |
Thursday Morning | N 0 - 10 |
Thursday Afternoon | WSW 5 - 10 |
Thursday Night | WSW 10 - 15 |
Stevens and Snoqualmie Pass | Elevation |
---|---|
Wednesday Morning | ENE 5 - 10 |
Wednesday Afternoon | ENE 10 - 15 |
Wednesday Night | ENE 0 - 10 |
Thursday Morning | ENE 5 - 10 |
Thursday Afternoon | SW 0 - 10 |
Thursday Night | WSW 15 - 20 |
Mt. Rainier | Elevation |
---|---|
Wednesday Morning | --- - |
Wednesday Afternoon | --- - |
Wednesday Night | --- - |
Thursday Morning | --- - |
Thursday Afternoon | --- - |
Thursday Night | --- - |
Mt. Hood | Elevation |
---|---|
Wednesday Morning | ENE 5 - 10 |
Wednesday Afternoon | ENE 10 - 15 |
Wednesday Night | ENE 5 - 10 |
Thursday Morning | NE 5 - 10 |
Thursday Afternoon | S 0 - 10 |
Thursday Night | W 15 - 20 |
Hurricane Ridge | Direction - Speed |
---|---|
Wednesday Morning | NNE 5 - 10 |
Wednesday Afternoon | ENE 5 - 10 |
Wednesday Night | VAR 0 - 10 |
Thursday Morning | WNW 5 - 10 |
Thursday Afternoon | W 5 - 10 |
Thursday Night | W 15 - 20 |
Mt. Baker | Direction - Speed |
---|---|
Wednesday Morning | NE 5 - 10 |
Wednesday Afternoon | ENE 5 - 10 |
Wednesday Night | VAR 0 - 10 |
Thursday Morning | N 0 - 10 |
Thursday Afternoon | WSW 5 - 10 |
Thursday Night | WSW 10 - 15 |
Stevens and Snoqualmie Pass | Direction - Speed |
---|---|
Wednesday Morning | ENE 5 - 10 |
Wednesday Afternoon | ENE 10 - 15 |
Wednesday Night | ENE 0 - 10 |
Thursday Morning | ENE 5 - 10 |
Thursday Afternoon | SW 0 - 10 |
Thursday Night | WSW 15 - 20 |
Mt. Rainier | Direction - Speed |
---|---|
Wednesday Morning | --- - |
Wednesday Afternoon | --- - |
Wednesday Night | --- - |
Thursday Morning | --- - |
Thursday Afternoon | --- - |
Thursday Night | --- - |
Mt. Hood | Direction - Speed |
---|---|
Wednesday Morning | ENE 5 - 10 |
Wednesday Afternoon | ENE 10 - 15 |
Wednesday Night | ENE 5 - 10 |
Thursday Morning | NE 5 - 10 |
Thursday Afternoon | S 0 - 10 |
Thursday Night | W 15 - 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 | |
---|---|---|---|---|---|
Wednesday | NNW 15 - 20 | NNW 15 - 20 | NW 15 - 20 | --- - | NNW 20 - 25 |
Wednesday | NNE 5 - 10 | NNE 10 - 15 | N 10 - 15 | --- - | N 15 - 20 |
Wednesday | NNW 15 - 20 | WNW 15 - 20 | WNW 15 - 20 | --- - | WNW 5 - 10 |
Thursday | WNW 15 - 20 | WNW 10 - 15 | NW 20 - 35 | --- - | NNW 15 - 20 |
Thursday | W 20 - 25 | W 20 - 25 | W 20 - 25 | --- - | NW 20 - 25 |
Thursday | WSW 35 - 45 | WSW 45 - 60 | WSW 40 - 55 | --- - | WSW 30 - 40 |
Mt. Baker | Direction - Speed |
---|---|
Wednesday | NNW 15 - 20 |
Wednesday | NNE 5 - 10 |
Wednesday | NNW 15 - 20 |
Thursday | WNW 15 - 20 |
Thursday | W 20 - 25 |
Thursday | WSW 35 - 45 |
Washington Pass | Direction - Speed |
---|---|
Wednesday | NNW 15 - 20 |
Wednesday | NNE 10 - 15 |
Wednesday | WNW 15 - 20 |
Thursday | WNW 10 - 15 |
Thursday | W 20 - 25 |
Thursday | WSW 45 - 60 |
Stevens and Snoqualmie Pass | Direction - Speed |
---|---|
Wednesday | NW 15 - 20 |
Wednesday | N 10 - 15 |
Wednesday | WNW 15 - 20 |
Thursday | NW 20 - 35 |
Thursday | W 20 - 25 |
Thursday | WSW 40 - 55 |
Mt. Rainier | Direction - Speed |
---|---|
Wednesday | --- - |
Wednesday | --- - |
Wednesday | --- - |
Thursday | --- - |
Thursday | --- - |
Thursday | --- - |
Mt. Hood | Direction - Speed |
---|---|
Wednesday | NNW 20 - 25 |
Wednesday | N 15 - 20 |
Wednesday | WNW 5 - 10 |
Thursday | NNW 15 - 20 |
Thursday | NW 20 - 25 |
Thursday | WSW 30 - 40 |
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 12, 2017
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