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 Sunday
A classic, comma-shaped Pacific storm is moving will pack a punch Friday night into Saturday. It should bring an end to a prolonged period of elevated snow levels as the low tracking toward the Puget sound brings a strong cold front across the region during the evening hours, dropping snow levels by several thousand feet. Moderate to heavy rain initially with snow levels from 4000 ft in the north to 5500 ft in the Mt Hood area should drop to below 3000 ft by around midnight. Mt. Baker could see some very heavy snowfall with convergence in the evening hours.
The system promises strong orographics with moderate to strong W and WSW winds should sustain heavy snowfall in the overnight hours into Saturday. The winds and snowfall should sustain longer in the central and southern Cascades than in the north, with a switch to more WNW flow pushing the heavier snowfall southward during the day on Saturday as it gradually decreases in all areas.
Mt. Hood and the SW Washington Cascades should get a few light snow showers Saturday evening before a high pressure offshore combined with northerly flow fully dries the region out. Expect clearing skies and cold temperatures.
Inversion conditions begin to develop on Sunday with northerly flow and clear, sunny skies. Valley fog is possible.
Weather Forecast
Hurricane Ridge
| Friday Night | Light to moderate rain and snow with rapidly lowering snow levels in the evening. Moderate to strong winds decreasing after midnight. |
| Saturday | Partly cloudy with a chance of light snow showers possible in the morning. |
Mt. Baker
| Friday Night | Heavy rain and snow changing to all snow by late evening as snow levels drop rapidly. Moderate to strong 5000 ft winds decreasing and becoming light by morning. |
| Saturday | Light snow showers decreasing and ending in the early morning. |
Washington Pass and Leavenworth
| Friday Night | Moderate snow in the evening becoming light to moderate after midnight. Strong alpine winds in the evening becoming moderate after midnight. |
| Saturday | Decreasing light snow showers in the morning then staying mostly cloudy. |
Stevens and Snoqualmie Pass
| Friday Night | Moderate to heavy rain and snow early, then becoming all snow. Strong to very strong alpine winds peaking in the evening. Moderate W winds through the Passes. |
| Saturday | Moderate snow showers in the morning tapering first at StevensModerate W winds through the Passes becoming light in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Very heavy snow at Paradise, heavy snow at White Pass, and moderate snow at Crystal. Snow may mix with rain at lower elevations in the evening before strong cooling occurs. Very strong alpine winds. |
| Saturday | Decreasing snow showers: moderate to heavy at Paradise, moderate at White Pass, and light at Crystal. Decreasing moderate to strong alpine winds in the morning becoming moderate in the afternoon. |
Mt. Hood
| Friday Night | Increasing moderate to heavy rain and snow in the evening changing to all snow. Very strong alpine winds. |
| Saturday | Decreasing moderate to heavy snow becoming showery late in the day. Decreasing strong alpine winds. |
Issued: 2:32 PM PST Friday, February 7, 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 | Snow Level | 3000' | 3500' | 4000' | 4500' | 4000' | 4000' | 4000' | 4500' |
| Friday Night | Snow Level | 2500' | 2000' | 2000' | 2500' | 2000' | 2000' | 2000' | 3000' |
| Saturday Morning | Snow Level | 2500' | 1500' | 1500' | 2000' | 2500' | 2500' | 2500' | 2500' |
| Saturday Afternoon | Snow Level | 2500' | 2500' | 2500' | 3000' | 2500' | 2500' | 2500' | 2000' |
| Saturday Evening | Snow Level | 2000' | 1500' | 1500' | 2000' | 1500' | 2000' | 2000' | 2000' |
| Saturday Night | Snow Level | 1500' | 500' | 0' | 500' | 1000' | 1500' | 1000' | 1500' |
| Sunday Morning | Freezing Level | 2000' | 2500' | 3500' | 3000' | 3000' | 3000' | 3500' | 3500' |
| Sunday Afternoon | Freezing Level | 3500' | 3000' | 4000' | 4000' | 3000' | 3000' | 4000' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Snow Level 3000' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Freezing Level 2000' |
| Sunday Afternoon |
Freezing Level 3500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Snow Level 3500' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1500' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Freezing Level 2500' |
| Sunday Afternoon |
Freezing Level 3000' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 4000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1500' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Freezing Level 3500' |
| Sunday Afternoon |
Freezing Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Freezing Level 3000' |
| Sunday Afternoon |
Freezing Level 4000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 4000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1500' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Freezing Level 3000' |
| Sunday Afternoon |
Freezing Level 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 4000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Freezing Level 3000' |
| Sunday Afternoon |
Freezing Level 3000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Snow Level 4000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Freezing Level 3500' |
| Sunday Afternoon |
Freezing Level 4000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 3000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Freezing Level 3500' |
| Sunday Afternoon |
Freezing Level 4500' |
* 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 | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.50 | 0 | 0 | 0 |
| Mt Baker Ski Area | 1.00 - 1.50 | LT 0.10 | 0 | 0 |
| Washington Pass | 0.75 | LT 0.10 | 0 | 0 |
| Leavenworth | 0.25 | LT 0.10 | 0 | 0 |
| Stevens Pass | 0.75 -1.00 | 0.25 - 0.50 | 0 | 0 |
| Snoqualmie Pass | 1.00 - 1.50 | 0.50 - 0.75 | 0 | 0 |
| Mission Ridge | 0.25 | LT 0.10 | 0 | 0 |
| Crystal Mt | 0.50 | 0.25 | LT 0.10 | 0 |
| Paradise | 1.50 | 0.75 | LT 0.10 | 0 |
| White Pass | 0.75 -1.00 | 0.50 | 0 | 0 |
| Mt Hood Meadows | 1.00 | 1.00 - 1.50 | LT 0.10 | 0 |
| Timberline | 1.00 | 1.00 - 1.50 | LT 0.25 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0.50 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 1.00 - 1.50 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0.75 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0.75 -1.00 |
| Sunday | 0.25 - 0.50 |
| Sunday Night | 0 |
| Sunday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | 1.00 - 1.50 |
| Sunday | 0.50 - 0.75 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | 0.50 |
| Sunday | 0.25 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 1.50 |
| Sunday | 0.75 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0.75 -1.00 |
| Sunday | 0.50 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | 1.00 |
| Sunday | 1.00 - 1.50 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | 1.00 |
| Sunday | 1.00 - 1.50 |
| Sunday Night | LT 0.25 |
| Sunday | 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: 2:32 PM PST Friday, February 7, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | WSW 25 - 35 | WSW 20 - 30 | WSW 25 - 35 | WSW 20 - 30 | WSW 35 - 45 |
| Friday Night | W 25 - 35 | S 10 - 20 | WSW 30 - 40 | WSW 25 - 35 | W 35 - 45 |
| Saturday Morning | W 5 - 15 | N 0 - 10 | W 15 - 25 | W 15 - 25 | W 30 - 40 |
| Saturday Afternoon | NE 0 - 10 | NNW 0 - 10 | W 10 - 20 | W 10 - 20 | W 30 - 40 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | WSW 25 - 35 |
| Friday Night | W 25 - 35 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | NE 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | WSW 20 - 30 |
| Friday Night | S 10 - 20 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NNW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | WSW 25 - 35 |
| Friday Night | WSW 30 - 40 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | WSW 20 - 30 |
| Friday Night | WSW 25 - 35 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | WSW 35 - 45 |
| Friday Night | W 35 - 45 |
| Saturday Morning | W 30 - 40 |
| Saturday Afternoon | W 30 - 40 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | WSW 25 - 35 |
| Friday Night | W 25 - 35 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | NE 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WSW 20 - 30 |
| Friday Night | S 10 - 20 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NNW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 25 - 35 |
| Friday Night | WSW 30 - 40 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WSW 20 - 30 |
| Friday Night | WSW 25 - 35 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | WSW 35 - 45 |
| Friday Night | W 35 - 45 |
| Saturday Morning | W 30 - 40 |
| Saturday Afternoon | W 30 - 40 |
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 | WSW 35 - 45 | SW 35 - 45 | WSW 50 - 70 | WSW 40 - 60 | WSW 45 - 65 |
| Friday Night | WSW 15 - 25 | W 25 - 35 | WSW 45 - 60 | W 40 - 55 | W 50 - 65 |
| Saturday Morning | NW 10 - 20 | NW 15 - 25 | NW 30 - 40 | WNW 25 - 35 | WNW 40 - 55 |
| Saturday Afternoon | N 10 - 20 | NNW 25 - 35 | NNW 25 - 35 | NW 25 - 35 | NW 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WSW 35 - 45 |
| Friday Night | WSW 15 - 25 |
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | N 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | SW 35 - 45 |
| Friday Night | W 25 - 35 |
| Saturday Morning | NW 15 - 25 |
| Saturday Afternoon | NNW 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 50 - 70 |
| Friday Night | WSW 45 - 60 |
| Saturday Morning | NW 30 - 40 |
| Saturday Afternoon | NNW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WSW 40 - 60 |
| Friday Night | W 40 - 55 |
| Saturday Morning | WNW 25 - 35 |
| Saturday Afternoon | NW 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | WSW 45 - 65 |
| Friday Night | W 50 - 65 |
| Saturday Morning | WNW 40 - 55 |
| Saturday Afternoon | NW 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: 2:32 PM PST Friday, February 7, 2020
Extended Weather Synopsis for Sunday night through Sunday
High pressure brings a strong inversion to the region with gradually warming conditions in the alpine and cool conditions at Pass level. Light winds are expected. The next system looks to be a weak clipper that may bring some very light snow and a slight increase in wind on Tuesday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Freezing Level | 0' - 1000' | 0' - 1000' | 1000' - 2000' | |
| Monday | Freezing Level | 5500' - 6500' | 6500' - 7500' | 7500' - 8500' | |
| Monday Night | Freezing Level | 4500' - 6500' | 7000' - 8000' | 9000' - 1000' | |
| Tuesday | Snow Level | 2000' - 3000' | 2500' - 3500' | 3500' - 5500' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Freezing Level 0' - 1000' |
| Monday |
Freezing Level 5500' - 6500' |
| Monday Night |
Freezing Level 4500' - 6500' |
| Tuesday |
Snow Level 2000' - 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Freezing Level 0' - 1000' |
| Monday |
Freezing Level 6500' - 7500' |
| Monday Night |
Freezing Level 7000' - 8000' |
| Tuesday |
Snow Level 2500' - 3500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Freezing Level 1000' - 2000' |
| Monday |
Freezing Level 7500' - 8500' |
| Monday Night |
Freezing Level 9000' - 1000' |
| Tuesday |
Snow Level 3500' - 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.
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 7, 2020
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