Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday night through Friday
An offshore ridge and a trough in the interior are battling it out for influence over our weather. The trough scores a temporary victory in the near term as an approaching shortwave drops into the region on NNW flow. The shortwave should bring snow levels down to around 3500-4000 ft by Saturday morning, but with little moisture to work with, less than 0.10" of snow water equivalent can be expected from Mt. Baker to Snoqualmie Pass. Modest Fraser River outflow may help bring some cooler air into the region and pin some clouds against the northern edge of the Olympics on Saturday morning. Clouds linger into Saturday afternoon for the Cascades as the flow aloft turns northerly.
Subtle easterly low-level flow develops Saturday night through Sunday morning with seasonal temperatures across the region. Patchy low clouds may develop late Saturday night into Sunday morning, but they should mix out quickly leaving mostly sunny skies throughout the region on Sunday.
Weather Forecast
Hurricane Ridge
| Friday Night | Mostly clear. Light winds. Cooler. |
| Saturday | Mostly cloudy in the morning, then becoming mostly sunny in the afternoon. Cooler. |
Mt. Baker
| Friday Night | Mostly cloudy in the evening with light rain or snow showers after midnight. Cooling temperatures. Cooler. |
| Saturday | Partly cloudy early, then becoming mostly sunny. Cooler. |
Washington Pass and Leavenworth
| Friday Night | Mostly cloudy. Light winds occasionally in the moderate 5000 ft winds. Cooler. |
| Saturday | Mostly cloudy in the morning with sunshine increasing from north to south throughout the day. Mostly light to occasionally moderate winds, however moderate to strong northerly winds may develop along the east edge of the range (Wenatchee Mountains, etc). Cooler. |
Stevens and Snoqualmie Pass
| Friday Night | Cloudy with a chance of very light rain or snow. Light to occasionally moderate W winds at pass level and 5000 ft. Cooler. |
| Saturday | Cloudy with a chance of very light rain or snow in the morning, then becoming partly cloudy in the afternoon. Light W winds at pass level and 5000 ft. Cooler. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Mostly cloudy with a slight chance of very light rain or snow flurries. Cooler. |
| Saturday | Mostly cloudy in the morning with a slight chance of very light rain or snow flurries, then becoming partly cloudy in the afternoon. Cooler. |
Mt. Hood
| Friday Night | Clear in the evening with low cloud possibly developing in the early morning hours. Increasing moderate winds at 5000 ft. Gradual cooling. |
| Saturday | Low clouds lingering in the morning, then becoming mostly sunny in the afternoon. Cooler. |
Issued: 2:15 PM PDT Friday, April 10, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Evening | Freezing Level | 8500' | 7000' | 8000' | 7500' | 7500' | 8000' | 9000' | 10500' |
| Friday Night | Snow Level | 7000' | 5500' | 5500' | 7000' | 6000' | 6000' | 7000' | 8500' |
| Saturday Morning | Snow Level | 5500' | 4000' | 4000' | 4500' | 4000' | 4000' | 4000' | 6000' |
| Saturday Afternoon | Freezing Level | 5000' | 4500' | 4500' | 5500' | 5000' | 5000' | 5000' | 6000' |
| Saturday Evening | Freezing Level | 5000' | 5000' | 5000' | 6000' | 5500' | 5500' | 5500' | 6500' |
| Saturday Night | Freezing Level * | 5000' | 3500' | 3500' | 4000' | 4000' | 4500' | 4500' | 5500' |
| Sunday Morning | Freezing Level * | 4500' | 3500' | 3500' | 4000' | 4000' | 4000' | 4500' | 5000' |
| Sunday Afternoon | Freezing Level | 5000' | 5000' | 5000' | 5000' | 5000' | 5500' | 5500' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Freezing Level 8500' |
| Friday Night |
Snow Level 7000' |
| Saturday Morning |
Snow Level 5500' |
| Saturday Afternoon |
Freezing Level 5000' |
| Saturday Evening |
Freezing Level 5000' |
| Saturday Night |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Freezing Level 7000' |
| Friday Night |
Snow Level 5500' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Freezing Level 4500' |
| Saturday Evening |
Freezing Level 5000' |
| Saturday Night |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 8000' |
| Friday Night |
Snow Level 5500' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Freezing Level 4500' |
| Saturday Evening |
Freezing Level 5000' |
| Saturday Night |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Freezing Level 7500' |
| Friday Night |
Snow Level 7000' |
| Saturday Morning |
Snow Level 4500' |
| Saturday Afternoon |
Freezing Level 5500' |
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 7500' |
| Friday Night |
Snow Level 6000' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Freezing Level 5000' |
| Saturday Evening |
Freezing Level 5500' |
| Saturday Night |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 8000' |
| Friday Night |
Snow Level 6000' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Freezing Level 5000' |
| Saturday Evening |
Freezing Level 5500' |
| Saturday Night |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Freezing Level 9000' |
| Friday Night |
Snow Level 7000' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Freezing Level 5000' |
| Saturday Evening |
Freezing Level 5500' |
| Saturday Night |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Freezing Level 10500' |
| Friday Night |
Snow Level 8500' |
| Saturday Morning |
Snow Level 6000' |
| Saturday Afternoon |
Freezing Level 6000' |
| Saturday Evening |
Freezing Level 6500' |
| Saturday Night |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5500' |
* 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
| Friday Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 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 | LT 0.10 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | LT 0.10 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | 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 | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 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: 2:15 PM PDT Friday, April 10, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | W 5 - 15 | WSW 5 - 15 | W 10 - 20 | W 5 - 15 | W 15 - 25 |
| Friday Night | WNW 5 - 15 | W 5 - 15 | W 10 - 20 | W 5 - 5 | W 20 - 30 |
| Saturday Morning | NE 5 - 15 | ENE 5 - 15 | WNW 5 - 15 | WNW 5 - 15 | W 15 - 25 |
| Saturday Afternoon | ENE 10 - 20 | NE 5 - 15 | NNW 5 - 15 | NNW 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | NE 5 - 15 |
| Saturday Afternoon | ENE 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | WSW 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | ENE 5 - 15 |
| Saturday Afternoon | NE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | W 10 - 20 |
| Friday Night | W 10 - 20 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | NNW 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 5 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | NNW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | W 15 - 25 |
| Friday Night | W 20 - 30 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | NE 5 - 15 |
| Saturday Afternoon | ENE 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WSW 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | ENE 5 - 15 |
| Saturday Afternoon | NE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 10 - 20 |
| Friday Night | W 10 - 20 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | NNW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 5 |
| Saturday Morning | WNW 5 - 15 |
| Saturday Afternoon | NNW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | W 15 - 25 |
| Friday Night | W 20 - 30 |
| Saturday Morning | W 15 - 25 |
| Saturday 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | WNW 20 - 30 | W 15 - 25 | WNW 35 - 45 | WNW 30 - 40 | WNW 30 - 40 |
| Friday Night | WNW 20 - 30 | W 20 - 30 | WNW 35 - 45 | WNW 30 - 40 | WNW 35 - 45 |
| Saturday Morning | N 20 - 30 | N 30 - 40 | NNW 20 - 30 | NW 25 - 35 | WNW 35 - 45 |
| Saturday Afternoon | NNE 25 - 35 | N 25 - 35 | N 20 - 30 | N 15 - 25 | NNW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WNW 20 - 30 |
| Friday Night | WNW 20 - 30 |
| Saturday Morning | N 20 - 30 |
| Saturday Afternoon | NNE 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | W 15 - 25 |
| Friday Night | W 20 - 30 |
| Saturday Morning | N 30 - 40 |
| Saturday Afternoon | N 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WNW 35 - 45 |
| Friday Night | WNW 35 - 45 |
| Saturday Morning | NNW 20 - 30 |
| Saturday Afternoon | N 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WNW 30 - 40 |
| Friday Night | WNW 30 - 40 |
| Saturday Morning | NW 25 - 35 |
| Saturday Afternoon | N 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | WNW 30 - 40 |
| Friday Night | WNW 35 - 45 |
| Saturday Morning | WNW 35 - 45 |
| Saturday Afternoon | NNW 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.
Issued: 2:15 PM PDT Friday, April 10, 2020
Extended Weather Synopsis for Friday night through Friday
The high pressure offshore continues to amplify, leaving us with dry northerly flow Sunday night, Monday, and Monday night. Expect very nice weather with freezing levels in the 5000-7000 ft range and mostly sunny skies. The European and Canadian models indicate a shortwave dropping south on NNW flow that may bring some light rain and high elevation snow shower activity starting late Tuesday, while the GFS maintains the influence of drier high pressure.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Freezing Level | 4000' - 5000' | 4500' - 5500' | 5000' - 6000' | |
| Monday | Freezing Level | 4500' - 5500' | 5000' - 6500' | 5500' - 7000' | |
| Monday Night | Freezing Level | 5000' - 6000' | 5500' - 6500' | 6500' - 7500' | |
| Tuesday | Freezing Level | 5000' - 7000' | 5000' - 7000' | 7000' - 9000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Freezing Level 4000' - 5000' |
| Monday |
Freezing Level 4500' - 5500' |
| Monday Night |
Freezing Level 5000' - 6000' |
| Tuesday |
Freezing Level 5000' - 7000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Freezing Level 4500' - 5500' |
| Monday |
Freezing Level 5000' - 6500' |
| Monday Night |
Freezing Level 5500' - 6500' |
| Tuesday |
Freezing Level 5000' - 7000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Freezing Level 5000' - 6000' |
| Monday |
Freezing Level 5500' - 7000' |
| Monday Night |
Freezing Level 6500' - 7500' |
| Tuesday |
Freezing Level 7000' - 9000' |
* 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 Apr 9, 2020
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