Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday night through Sunday
Another cold and mostly clear night is on tap for the Pacific Northwest. Shortwave upper level ridging upstream of our area will slide inland on Thursday, resulting in fair weather. A weak Pacific frontal system will run into the ridge and split, managing only to send high clouds over the area during the day. Freezing levels will rebound slightly Thursday afternoon as the cold air mass currently over our region begins to moderate slightly over time.
With a high amplitude upper level ridge once again positioned offshore between140W-150W, cold northerly flow aloft will allow an upper level trough to dig off the British Columbia Coast Friday. A developing low pressure system off the coast will begin to rotate light snow into the region on Friday. Snow levels will rise slightly for areas from Snoqualmie Pass and south to Mt. Hood during the day.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Mostly clear. Periods of high clouds after midnight. Cold. |
| Thursday | Becoming mostly cloudy with increasing mid and high clouds during the day. |
Mt. Baker
| Wednesday Night | Mostly clear. Periods of high clouds after midnight. Cold. |
| Thursday | Becoming mostly cloudy with increasing mid and high clouds during the day. |
Washington Pass and Leavenworth
| Wednesday Night | Mostly clear. Periods of high clouds after midnight. Cold. |
| Thursday | Becoming mostly cloudy with increasing high clouds during the day. |
Stevens and Snoqualmie Pass
| Wednesday Night | Mostly clear. Periods of high clouds after midnight. Cold. Light east wind in the Passes increasing after midnight. |
| Thursday | Becoming mostly cloudy with increasing high clouds during the day. Light to moderate east wind in the Passes. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Mostly clear. Cold. |
| Thursday | Becoming mostly cloudy with increasing high clouds during the day. |
Mt. Hood
| Wednesday Night | Mostly clear except for areas of low clouds lower slopes. Cold. |
| Thursday | Becoming mostly cloudy with increasing high clouds during the day. |
Issued: 2:13 PM PST Wednesday, February 6, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Evening | Freezing Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Wednesday Night | Freezing Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Thursday Morning | Freezing Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Thursday Afternoon | Freezing Level * | 2000' | 1500' | 1500' | 500' | 1500' | 1500' | 2500' | 2500' |
| Thursday Evening | Freezing Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Thursday Night | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Friday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 500' | 1000' |
| Friday Afternoon | Snow Level | 500' | 0' | 0' | 0' | 500' | 1000' | 1500' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 500' |
| Friday Afternoon |
Snow Level 1500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 0' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 1000' |
| Friday Afternoon |
Snow Level 2000' |
* 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
| Wednesday Night | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | 0 | 0 | LT 0.25 | LT 0.25 |
| Washington Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | 0 | 0 | 0 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | 0 | LT 0.25 |
| Mission Ridge | 0 | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 | LT 0.10 |
| Mt Hood Meadows | 0 | 0 | 0 | LT 0.25 |
| Timberline | 0 | 0 | 0 | 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0.25 |
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: 2:13 PM PST Wednesday, February 6, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | S 0 - 10 |
| Thursday Morning | VAR 0 - 10 | S 0 - 10 | SE 0 - 10 | S 0 - 10 | SE 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 | S 0 - 10 | SE 0 - 10 | S 0 - 10 | SE 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | S 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | S 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 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 | |
|---|---|---|---|---|---|
| Wednesday Evening | NW 10 - 20 | NW 20 - 30 | NNW 15 - 25 | NW 15 - 25 | NW 15 - 25 |
| Wednesday Night | NW 5 - 15 | NW 10 - 20 | NW 10 - 20 | NW 10 - 20 | NW 5 - 15 |
| Thursday Morning | NW 0 - 10 | NW 0 - 10 | NW 5 - 15 | NW 0 - 10 | WNW 0 - 10 |
| Thursday Afternoon | W 10 - 20 | SW 10 - 20 | W 10 - 20 | W 5 - 15 | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | NW 10 - 20 |
| Wednesday Night | NW 5 - 15 |
| Thursday Morning | NW 0 - 10 |
| Thursday Afternoon | W 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | NW 20 - 30 |
| Wednesday Night | NW 10 - 20 |
| Thursday Morning | NW 0 - 10 |
| Thursday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | NNW 15 - 25 |
| Wednesday Night | NW 10 - 20 |
| Thursday Morning | NW 5 - 15 |
| Thursday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | NW 15 - 25 |
| Wednesday Night | NW 10 - 20 |
| Thursday Morning | NW 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | NW 15 - 25 |
| Wednesday Night | NW 5 - 15 |
| Thursday Morning | WNW 0 - 10 |
| Thursday Afternoon | SW 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.
Issued: 2:13 PM PST Wednesday, February 6, 2019
Extended Weather Synopsis for Sunday night through Sunday
The low pressure system will slowly drop south along the Washington/Oregon coastline Friday night and Saturday, rotating additional waves of light moisture over the region. Offshore northerly gradients will once again draw down much colder air from the Canadian interior beginning Friday night and continuing on Saturday.
Conditions should dry out first in the Mt. Baker region Saturday afternoon, with steadier snow showers continuing for the south Washington Cascades and Mt. Hood area closer to the low center.
As the low pulls further south Saturday night and Sunday, showers will become more scattered but localized upslope snow should start up along the east slopes of the Cascades north of I-90 and along the north slopes of the Olympics. The cold weather looks likely to continue but it's important to note forecast models diverge sharply on weather systems heading into next week.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Snow Level | 0' - 0' | 0' - 1000' | 1500' - 2500' | * |
| Saturday | Snow Level | 0' - 0' | 0' - 500' | 1000' - 2000' | * |
| Saturday Night | Snow Level | 0' - 0' | 0' - 0' | 0' - 0' | * |
| Sunday | Snow Level | 0' - 0' | 0' - 0' | 0' - 0' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Saturday |
Snow Level 0' - 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Sunday |
Snow Level 0' - 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Saturday |
Snow Level 0' - 500' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Sunday |
Snow Level 0' - 0' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Snow Level 1500' - 2500' (Easterly Flow *) |
| Saturday |
Snow Level 1000' - 2000' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Sunday |
Snow Level 0' - 0' |
* 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 6, 2019
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