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
An upper low spins in the near-shore waters off the Washington Coast through Thursday night. On Wednesday night, winds are southerly ahead of the low as a band of snow moves from south to north across the region, bringing several inches of snow with favored locations along the central Washington Cascades east slopes and then Mt. Baker as the low-level flow switches from SE to SSW with the passage of the band of snow. Light easterly wind through the mountain gaps will decrease and become variable by morning.
On Thursday, a surface low forms and might spawn a few light snow showers near Mt. Hood, the southern Washington Cascades, and Olympics. Elsewhere, expect partly cloudy, cool weather.
Thursday night and Friday the low drops south and weakens, with minimal instability snow showers continuing to affect the Mt. Hood area with cloud cover decreasing.
Throughout the short-term forecast, temperatures will remain below seasonal norms, with very chilly air moving in east of the Cascade Crest on Friday morning.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Cloudy with a chance of flurries. Cold. Light to moderate winds becoming light. |
| Thursday | Mostly cloudy with light snow flurries. Cool. Light winds. |
Mt. Baker
| Wednesday Night | Increasing light snow during the evening hours and continuing overnight. Cool. Light winds. |
| Thursday | Light snow flurries. Cool. Light winds. |
Washington Pass and Leavenworth
| Wednesday Night | Light snowfall affecting the Leavenworth area during the evening hours and the Washington Pass area after 10 PM. Cool. Light to moderate winds at Washington Pass. |
| Thursday | Mostly cloudy with snow flurries particularly in the north. Cool. Light winds. |
Stevens and Snoqualmie Pass
| Wednesday Night | Light snow developing early and decreasing after midnight. Cool. Light winds at 5000 ft with decreasing light E winds at pass level becoming variable by morning. |
| Thursday | Cloudy. Cool. Light winds at 5000 ft. Variable winds at pass level in the morning then turning westerly. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Light snow in the evening, then cloudy with flurries after midnight. Cool. Light winds, moderate at ridge crests. |
| Thursday | Cloudy. Cool. Light winds. |
Mt. Hood
| Wednesday Night | Light snow decreasing and becoming very light snow showers. Cool. Light winds. |
| Thursday | Mostly cloudy with flurries in the morning, then light snow developing in the afternoon. Cool. Light winds. |
Issued: 2:42 PM PST Wednesday, February 27, 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 | Snow Level * | 500' | 2000' | 1500' | 500' | 1000' | 1000' | 500' | 0' |
| Wednesday Night | Snow Level * | 0' | 500' | 500' | 0' | 0' | 0' | 0' | 0' |
| Thursday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Thursday Afternoon | Snow Level | 1500' | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' |
| Thursday Evening | Snow Level * | 1500' | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' | 1500' |
| Thursday Night | Snow Level * | 500' | 0' | 0' | 0' | 0' | 500' | 500' | 500' |
| Friday Morning | Snow Level * | 500' | 0' | 0' | 0' | 0' | 500' | 500' | 1000' |
| Friday Afternoon | Snow Level | 1500' | 1500' | 1500' | 1500' | 2000' | 2000' | 2000' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1500' |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 500' (Easterly Flow *) |
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 2000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 500' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1000' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' (Easterly Flow *) |
| Friday Morning |
Snow Level 0' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 1500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 500' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1000' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' (Easterly Flow *) |
| Friday Morning |
Snow Level 0' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1000' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' (Easterly Flow *) |
| Friday Morning |
Snow Level 0' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1000' (Easterly Flow *) |
| Thursday Night |
Snow Level 0' (Easterly Flow *) |
| Friday Morning |
Snow Level 0' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 500' (Easterly Flow *) |
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 2000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 500' (Easterly Flow *) |
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 2000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1500' |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 500' (Easterly Flow *) |
| Friday Morning |
Snow Level 1000' (Easterly Flow *) |
| 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 | 0 | 0 |
| Mt Baker Ski Area | 0.25 - 0.50 | LT 0.10 | 0 | 0 |
| Washington Pass | 0.25 | LT 0.10 | 0 | 0 |
| Leavenworth | LT 0.25 | 0 | 0 | 0 |
| Stevens Pass | 0.25 | 0 | 0 | 0 |
| Snoqualmie Pass | LT 0.25 | 0 | 0 | 0 |
| Mission Ridge | LT 0.25 | 0 | 0 | 0 |
| Crystal Mt | LT 0.25 | 0 | 0 | 0 |
| Paradise | LT 0.25 | 0 | LT 0.10 | 0 |
| White Pass | LT 0.10 | 0 | LT 0.10 | 0 |
| Mt Hood Meadows | LT 0.25 | LT 0.25 | LT 0.25 | LT 0.10 |
| Timberline | LT 0.25 | LT 0.25 | 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0.25 - 0.50 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0.25 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | LT 0.25 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Sunday | LT 0.25 |
| Sunday Night | 0.25 |
| Sunday | 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: 2:42 PM PST Wednesday, February 27, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | S 10 - 20 | VAR 0 - 10 | SE 5 - 15 | SE 5 - 15 | WSW 5 - 15 |
| Wednesday Night | SSW 5 - 15 | SW 5 - 15 | WSW 5 - 15 | SSW 5 - 15 | WSW 5 - 15 |
| Thursday Morning | VAR 0 - 10 | S 5 - 15 | W 5 - 15 | SW 5 - 15 | SW 5 - 15 |
| Thursday Afternoon | E 0 - 10 | WSW 0 - 10 | W 5 - 15 | WSW 5 - 15 | WSW 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | S 10 - 20 |
| Wednesday Night | SSW 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | E 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | WSW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | SE 5 - 15 |
| Wednesday Night | WSW 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | SE 5 - 15 |
| Wednesday Night | SSW 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | WSW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | WSW 5 - 15 |
| Wednesday Night | WSW 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | WSW 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | S 10 - 20 |
| Wednesday Night | SSW 5 - 15 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | E 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | WSW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SE 5 - 15 |
| Wednesday Night | WSW 5 - 15 |
| Thursday Morning | W 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | SE 5 - 15 |
| Wednesday Night | SSW 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | WSW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | WSW 5 - 15 |
| Wednesday Night | WSW 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | WSW 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | SE 10 - 20 | SSE 15 - 25 | S 20 - 30 | S 20 - 30 | SSW 25 - 35 |
| Wednesday Night | S 5 - 15 | SE 10 - 20 | SSW 5 - 15 | SW 10 - 20 | WSW 20 - 30 |
| Thursday Morning | WSW 5 - 15 | NW 10 - 20 | WNW 25 - 35 | W 20 - 30 | WSW 15 - 25 |
| Thursday Afternoon | W 5 - 15 | WNW 10 - 20 | W 25 - 35 | W 20 - 30 | WSW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | SE 10 - 20 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | WSW 5 - 15 |
| Thursday Afternoon | W 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SSE 15 - 25 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | NW 10 - 20 |
| Thursday Afternoon | WNW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | S 20 - 30 |
| Wednesday Night | SSW 5 - 15 |
| Thursday Morning | WNW 25 - 35 |
| Thursday Afternoon | W 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | S 20 - 30 |
| Wednesday Night | SW 10 - 20 |
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | SSW 25 - 35 |
| Wednesday Night | WSW 20 - 30 |
| Thursday Morning | WSW 15 - 25 |
| Thursday Afternoon | WSW 15 - 25 |
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: 2:42 PM PST Wednesday, February 27, 2019
Extended Weather Synopsis for Sunday night through Sunday
The region sits under a dry NW flow with a ridge offshore and a broad trough to the east. The western edge of that trough pushes a modified arctic air mass into the region Saturday into early next week. Expect moderate to strong easterly winds, particularly at night when the pressure gradients are strongest. Very cold air and biting wind chills will be the story east of the Cascade Crest and near the mountain gaps with strong downslope winds and west of the Cascade Crest. Dry weather should dominate the weekend.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Freezing Level | 1500' - 2500' | 1500' - 2500' | 1000' - 3000' | * |
| Saturday | Freezing Level | 1000' - 2000' | 1000' - 2000' | 1000' - 2000' | * |
| Saturday Night | Freezing Level | 500' - 2500' | 500' - 2500' | 500' - 1500' | * |
| Sunday | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' | * |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Freezing Level 1500' - 2500' (Easterly Flow *) |
| Saturday |
Freezing Level 1000' - 2000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 500' - 2500' (Easterly Flow *) |
| Sunday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Freezing Level 1500' - 2500' (Easterly Flow *) |
| Saturday |
Freezing Level 1000' - 2000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 500' - 2500' (Easterly Flow *) |
| Sunday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Freezing Level 1000' - 3000' (Easterly Flow *) |
| Saturday |
Freezing Level 1000' - 2000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Sunday |
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 27, 2019
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