Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Saturday night through Sunday
A blocking pattern over the Central Pacific continues to allow a modified arctic air mass to bring cold lows across our region with snow levels at sea level throughout the forecast period.
Saturday night, the low that brought snow Friday and Saturday across our region moves south to the SW corner of Oregon with light snow showers lingering in the SE Washington Cascades and Mt. Hood areas. Winds will decrease and become light in many areas. However, a N-NE barrier jet wind along the east slopes of the Cascades and Fraser River outflow across NW Washington will be strong in the evening and will decrease to moderate during the night. Skies will also clear from north to south as snow showers mainly linger into the overnight hours over Mt. Hood and the SE Cascades of Washington State. Temperatures will be quite cold overnight.
On Sunday, light to occasionally moderate snow is expected to linger on the east slopes from the departing system and should be reinforced along the west slopes by the end of the day as a weak wave develops under cyclonic flow over Vancouver Island bringing an increase in winds to the southern part of the forecast area.
Sunday night, moderate snow with fall from about I-90 southward. Winds and snow will be heaviest to the south, particularly Mt. Hood. On the heels of the first wave, a stronger and more organized system will impact Mt. Hood and southern Washington with moderate to heavy snow and strong winds as a warm front lifts northward. Snow levels will rise slightly above sea level.
Weather Forecast
Hurricane Ridge
| Saturday Night | Skies clearing early, then mostly clear and cold. Moderate NE winds. |
| Sunday | Sunny and cool in the morning with increasing, but scattered clouds in the afternoon. Light winds increasing late in the day. |
Mt. Baker
| Saturday Night | Clear and cold. Decreasing moderate winds. |
| Sunday | Sunny and cool in the morning with clouds increasing slightly in the afternoon. Light winds. |
Washington Pass and Leavenworth
| Saturday Night | Bands of light snow lingering south of Leavenworth with clearing from north to south not quite reaching the Mt. Adams area. Cold. Strong to extreme winds decreasing for the Wenatchee mountains and areas east of Leavenworth. Elsewhere, decreasing light to moderate winds becoming variable. |
| Sunday | Sunny and cool with clouds increasing late in the day. Light winds becoming light to moderate in the afternoon south of I-90. |
Stevens and Snoqualmie Pass
| Saturday Night | Clearing late. Light winds at 5000 ft and light E flow through the gaps. |
| Sunday | Increasing clouds in the afternoon. Increasing light W wind through the pass and at 5000 ft. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | Chance of light snow showers early, then clearing late. Decreasing light winds. |
| Sunday | Sunny with clouds in the afternoon. Increasing light winds. |
Mt. Hood
| Saturday Night | Decreasing light snow ending and partial clearing late. Moderate winds becoming light. |
| Sunday | Sunny early, with increasing clouds and light snow in the afternoon. Light winds becoming moderate, gusting strong. |
Issued: 3:08 PM PST Saturday, February 9, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Evening | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Saturday Night | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Sunday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Sunday Afternoon | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Sunday Evening | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Sunday Night | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 1000' |
| Monday Morning | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 1000' |
| Monday Afternoon | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 500' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 0' (Easterly Flow *) |
| Monday Morning |
Snow Level 0' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Snow Level 0' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 0' |
| Sunday Evening |
Snow Level 0' (Easterly Flow *) |
| Sunday Night |
Snow Level 1000' (Easterly Flow *) |
| Monday Morning |
Snow Level 1000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 2000' (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
| Saturday Night | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | LT 0.10 | 0 | LT 0.10 | LT 0.10 |
| Stevens Pass | LT 0.10 | 0 | LT 0.25 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | 0.25 - 0.50 | LT 0.10 |
| Mission Ridge | 0.25 | 0 | LT 0.25 | LT 0.10 |
| Crystal Mt | LT 0.10 | 0 | 0.25 | 0.25 |
| Paradise | 0 | LT 0.10 | 0.50 | 0.25 |
| White Pass | LT 0.25 | LT 0.10 | 0.25 - 0.50 | 0.25 - 0.50 |
| Mt Hood Meadows | LT 0.25 | LT 0.10 | 1.00 | 1.00 |
| Timberline | LT 0.25 | LT 0.10 | 1.00 | 1.00 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Sunday | 0 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | 0.25 |
| Sunday | 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0.50 |
| Sunday | 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | 0.25 - 0.50 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 1.00 |
| Sunday | 1.00 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 1.00 |
| Sunday | 1.00 |
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: 3:08 PM PST Saturday, February 9, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | NNE 15 - 25 | ENE 15 - 25 | ENE 5 - 15 | E 5 - 15 | ENE 15 - 25 |
| Saturday Night | NNE 15 - 25 | ENE 10 - 20 | E 0 - 10 | VAR 0 - 10 | ENE 5 - 15 |
| Sunday Morning | VAR 0 - 10 | E 0 - 10 | VAR 0 - 10 | W 0 - 10 | VAR 0 - 10 |
| Sunday Afternoon | W 5 - 15 | VAR 0 - 10 | WSW 5 - 15 | WSW 5 - 15 | WSW 25 - 35 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | NNE 15 - 25 |
| Saturday Night | NNE 15 - 25 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | W 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | ENE 15 - 25 |
| Saturday Night | ENE 10 - 20 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | ENE 5 - 15 |
| Saturday Night | E 0 - 10 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | WSW 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | E 5 - 15 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | W 0 - 10 |
| Sunday Afternoon | WSW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | ENE 15 - 25 |
| Saturday Night | ENE 5 - 15 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | WSW 25 - 35 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | NNE 15 - 25 |
| Saturday Night | NNE 15 - 25 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | W 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | ENE 15 - 25 |
| Saturday Night | ENE 10 - 20 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | ENE 5 - 15 |
| Saturday Night | E 0 - 10 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | WSW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | E 5 - 15 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | W 0 - 10 |
| Sunday Afternoon | WSW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | ENE 15 - 25 |
| Saturday Night | ENE 5 - 15 |
| Sunday Morning | VAR 0 - 10 |
| Sunday Afternoon | WSW 25 - 35 |
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 | |
|---|---|---|---|---|---|
| Saturday Evening | ESE 10 - 20 | ENE 10 - 20 | ENE 25 - 35 | ENE 25 - 35 | ENE 15 - 25 |
| Saturday Night | VAR 0 - 10 | E 5 - 15 | NE 20 - 30 | NE 20 - 30 | ENE 10 - 20 |
| Sunday Morning | W 5 - 15 | WSW 5 - 15 | WNW 10 - 20 | WNW 15 - 25 | NW 15 - 25 |
| Sunday Afternoon | SW 10 - 20 | WSW 5 - 15 | WSW 25 - 35 | WSW 25 - 35 | W 35 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | ESE 10 - 20 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | SW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | ENE 10 - 20 |
| Saturday Night | E 5 - 15 |
| Sunday Morning | WSW 5 - 15 |
| Sunday Afternoon | WSW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | ENE 25 - 35 |
| Saturday Night | NE 20 - 30 |
| Sunday Morning | WNW 10 - 20 |
| Sunday Afternoon | WSW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | ENE 25 - 35 |
| Saturday Night | NE 20 - 30 |
| Sunday Morning | WNW 15 - 25 |
| Sunday Afternoon | WSW 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | ENE 15 - 25 |
| Saturday Night | ENE 10 - 20 |
| Sunday Morning | NW 15 - 25 |
| Sunday Afternoon | W 35 - 50 |
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: 3:08 PM PST Saturday, February 9, 2019
Extended Weather Synopsis for Sunday night through Sunday
Monday evening a cold front will pass with a trough and associated cold low moving onshore over Washington State Tuesday morning, with another round of lowland and mountain snow across the region. The heaviest precipitation will be over Oregon, where snow levels won't rise over 2000 ft.
The trough lingers into Wednesday and gradually departs during the day Wednesday, leaving the region in a drying, cool northerly flow by the end of the day.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Snow Level | 0' - 0' | 0' - 0' | 1500' - 2500' | * |
| Tuesday | Snow Level | 0' - 0' | 0' - 1000' | 1000' - 2000' | * |
| Tuesday Night | Snow Level | 0' - 0' | 0' - 1000' | 1500' - 2500' | |
| Wednesday | Snow Level | 0' - 0' | 0' - 1000' | 500' - 1500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Tuesday |
Snow Level 0' - 0' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' - 0' |
| Wednesday |
Snow Level 0' - 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Snow Level 0' - 0' (Easterly Flow *) |
| Tuesday |
Snow Level 0' - 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' - 1000' |
| Wednesday |
Snow Level 0' - 1000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Snow Level 1500' - 2500' (Easterly Flow *) |
| Tuesday |
Snow Level 1000' - 2000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1500' - 2500' |
| Wednesday |
Snow Level 500' - 1500' |
* 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 9, 2019
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.