Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Thursday night through Saturday
The Pacific Northwest is experiencing a period of generally quiet and continued unseasonably cool weather with a major ridge blocking weather upstream.
A weak low continues to spin 250 miles off the coast of northern Oregon. A band of light snow showers over SW Washington and N Oregon on Thursday afternoon is weakening and will bring a few light snow showers to the Mt. Hood area overnight Thursday night. Elsewhere, skies will remain clear and temperatures surface temperatures will be quite chilly under clear skies with light winds, creating an inversion in some areas.
Friday will feature another sunny day with the offshore dropping SE into Oregon by Friday evening and exits the picture. Dry NNW flow develops over the area. The March sun will warm most areas by Friday afternoon and inversion conditions are not expected to persist. Freezing levels should approach pass levels in the afternoon.
Friday night a modified arctic front will drop SW and bring even colder air to the east slopes of the Cascades along with increasing Fraser outflow winds. Easterly flow through the Cascade gaps will be light but will begin to gradually increase. On Saturday, will feature another sunny day with cold temperatures moderating in the afternoon. Snow flurries or light snow are likely in the NE Cascades Saturday afternoon and evening, but accumulations will be very light.
Weather Forecast
Hurricane Ridge
| Thursday Night | Mostly clear with scattered clouds. Light winds. |
| Friday | Mostly sunny with scattered clouds. Light winds. |
Mt. Baker
| Thursday Night | Mostly clear with scattered clouds. Light winds. |
| Friday | Mostly sunny with scattered clouds. Light winds. |
Washington Pass and Leavenworth
| Thursday Night | Mostly clear with scattered clouds. Light winds. |
| Friday | Mostly sunny with scattered clouds. Light winds. |
Stevens and Snoqualmie Pass
| Thursday Night | Mostly clear. Light winds at 5000 ft and light E flow at pass level. |
| Friday | Mostly sunny. Light winds at 5000 ft and light E flow at pass level. |
Mt. Rainier, Crystal and White Pass
| Thursday Night | Clouds possible early, then clearing. Light winds. |
| Friday | Mostly sunny. Light winds. |
Mt. Hood
| Thursday Night | Decreasing clouds. Light winds. |
| Friday | More sun than clouds with a chance of flurries. Light winds. |
Issued: 2:38 PM PST Thursday, February 28, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Evening | Snow Level | 2000' | 2000' | 1500' | 1000' | 2000' | 2000' | 2000' | 1500' |
| Thursday Night | Snow Level * | 1000' | 1000' | 500' | 0' | 1500' | 1500' | 1500' | 1500' |
| Friday Morning | Freezing Level * | 2000' | 2000' | 500' | 500' | 2000' | 2000' | 2500' | 2000' |
| Friday Afternoon | Freezing Level | 2000' | 2000' | 1000' | 1000' | 2000' | 2500' | 2500' | 2500' |
| Friday Evening | Freezing Level | 3000' | 3000' | 2500' | 2000' | 3000' | 3000' | 3000' | 3000' |
| Friday Night | Freezing Level * | 3000' | 2500' | 1500' | 1500' | 2500' | 2500' | 3000' | 2000' |
| Saturday Morning | Snow Level * | 1500' | 0' | 0' | 0' | 500' | 1000' | 1500' | 1000' |
| Saturday Afternoon | Snow Level * | 1500' | 0' | 0' | 0' | 0' | 0' | 500' | 0' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening |
Snow Level 2000' |
| Thursday Night |
Snow Level 1000' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2000' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 1500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening |
Snow Level 2000' |
| Thursday Night |
Snow Level 1000' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2000' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level 1500' |
| Thursday Night |
Snow Level 500' (Easterly Flow *) |
| Friday Morning |
Freezing Level 500' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 1000' |
| Friday Evening |
Freezing Level 2500' |
| Friday Night |
Freezing Level 1500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Thursday Evening |
Snow Level 1000' |
| Thursday Night |
Snow Level 0' (Easterly Flow *) |
| Friday Morning |
Freezing Level 500' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 1000' |
| Friday Evening |
Freezing Level 2000' |
| Friday Night |
Freezing Level 1500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level 2000' |
| Thursday Night |
Snow Level 1500' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2000' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening |
Snow Level 2000' |
| Thursday Night |
Snow Level 1500' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2500' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 2500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 1000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Evening |
Snow Level 2000' |
| Thursday Night |
Snow Level 1500' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2500' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 3000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 1500' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening |
Snow Level 1500' |
| Thursday Night |
Snow Level 1500' (Easterly Flow *) |
| Friday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Freezing Level 2500' |
| Friday Evening |
Freezing Level 3000' |
| Friday Night |
Freezing Level 2000' (Easterly Flow *) |
| Saturday Morning |
Snow Level 1000' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 0' (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 Night | Saturday | Saturday Night | Saturday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 | LT 0.10 |
| Washington Pass | 0 | 0 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | 0 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 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: 2:38 PM PST Thursday, February 28, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Evening | E 5 - 15 | VAR 0 - 10 | VAR 0 - 10 | S 0 - 10 | S 5 - 15 |
| Thursday Night | E 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | SW 5 - 15 |
| Friday Morning | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Friday Afternoon | W 0 - 10 | VAR 0 - 10 | W 5 - 15 | W 5 - 15 | WNW 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening | E 5 - 15 |
| Thursday Night | E 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening | VAR 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening | VAR 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Evening | S 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening | S 5 - 15 |
| Thursday Night | SW 5 - 15 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WNW 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Evening | E 5 - 15 |
| Thursday Night | E 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | VAR 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | VAR 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | S 0 - 10 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | S 5 - 15 |
| Thursday Night | SW 5 - 15 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WNW 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 | |
|---|---|---|---|---|---|
| Thursday Evening | W 5 - 15 | W 10 - 20 | WSW 5 - 15 | SSW 10 - 20 | SSW 20 - 30 |
| Thursday Night | W 5 - 15 | W 10 - 20 | VAR 0 - 10 | SW 0 - 10 | SW 15 - 25 |
| Friday Morning | WNW 5 - 15 | WNW 5 - 15 | NNW 5 - 15 | VAR 0 - 10 | WSW 5 - 15 |
| Friday Afternoon | WNW 5 - 15 | WNW 5 - 15 | WNW 10 - 20 | WNW 5 - 15 | W 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 5 - 15 |
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | WNW 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Evening | W 10 - 20 |
| Thursday Night | W 10 - 20 |
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | WNW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | VAR 0 - 10 |
| Friday Morning | NNW 5 - 15 |
| Friday Afternoon | WNW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | SSW 10 - 20 |
| Thursday Night | SW 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WNW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | SSW 20 - 30 |
| Thursday Night | SW 15 - 25 |
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | W 10 - 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.
Issued: 2:38 PM PST Thursday, February 28, 2019
Extended Weather Synopsis for Saturday night through Saturday
Sunday night through Tuesday the back end of a broad trough continues to push very cold modified arctic air into our region. It will spill through the Fraser River gap bringing strong winds to parts of the north Puget Sound with easterly flow in the moderate range Sunday through Tuesday. Expect mostly clear skies, cold temperatures, particularly east of the Cascade Crest and dangerously cold wind-chills in some areas.
Moisture is expected to return to the region on Wednesday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Saturday Night | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' | * |
| Sunday | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' | * |
| Sunday Night | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' | * |
| Monday | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' | * |
| Mt. Baker | Elevation |
|---|---|
| Saturday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Monday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Monday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Monday |
Freezing Level 500' - 1500' (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.
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 28, 2019
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