Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Tuesday night through Monday
We're in for another wet and wild few days in the mountains. Three major pieces tell the story of the short-term forecast: warm, wet, and windy. Warm: Snow levels will begin to climb overnight in all locations. Areas from about I90 south should experience the greatest warming. Mild temperatures expand to all areas by mid-day Wednesday with snow levels exceeding Pass elevations. Once snow levels peak Wednesday afternoon, they seem to hover at about that elevation through the near term forecast period. Wet: You may hear phrases like "atmospheric river" with this event. That should paint the picture pretty well. Even though weather models continue to struggle with exactly how much precipitation to expect, this looks like a wet system. Anticipate near-continuous moderate to heavy rain and snow in the mountains. Initially, the storm hangs up on the Cascade crest, but as more moisture piles up, showers spillover into areas further east. Windy: Look for moderate to strong winds even at mid-elevations. Winds will continue to increase with very strong and extreme alpine winds developing. The stormy pattern, with mild temperatures, moderate to heavy rain and snow, and moderate to strong winds, appears to continue unbroken until late Thursday night.
Weather Forecast
Hurricane Ridge
| Tuesday Night | Cloudy with warming temperatures. Light to moderate rain and snow showers. Moderate winds increasing. |
| Wednesday | Cloudy and mild. Light to moderate rain and snow showers. Moderate winds increasing. |
Mt. Baker
| Tuesday Night | Cloudy. Moderate rain and snow. Moderate winds increasing. |
| Wednesday | Cloudy with warming temperatures. Moderate to heavy rain and snow. Moderate to strong winds. |
Washington Pass and Leavenworth
| Tuesday Night | Cloudy. Rain and snow showers. Light to moderate winds. |
| Wednesday | Cloudy with warming temperatures. Moderate rain and snow showers. Moderate winds. |
Stevens and Snoqualmie Pass
| Tuesday Night | Stormy. Heavy rain and snow with warming temperatures. Moderate to strong winds. |
| Wednesday | Stormy. Heavy rain and snow with continued warming. Strong winds increasing in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Tuesday Night | Stormy. Moderate to heavy rain and snow with warming. Moderate winds. |
| Wednesday | Stormy. Moderate to heavy rain and snow with warming. Moderate to strong winds. |
Mt. Hood
| Tuesday Night | Moderate to heavy rain and snow with warming temperatures. Moderate winds becoming strong. |
| Wednesday | Moderate to heavy rain and snow with warming temperatures. Very strong winds increasing in the afternoon. |
Issued: 1:49 PM PST Tuesday, February 4, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Evening | Snow Level | 4500' | 1500' | 1500' | 1500' | 1500' | 2000' | 2500' | 2500' |
| Tuesday Night | Snow Level | 6000' | 2500' | 2500' | 2500' | 3000' | 3500' | 4000' | 4500' |
| Wednesday Morning | Snow Level | 7000' | 4500' | 3500' | 3500' | 4000' | 5000' | 5000' | 6000' |
| Wednesday Afternoon | Snow Level | 7000' | 5000' | 4500' | 4500' | 4500' | 5500' | 6000' | 7000' |
| Wednesday Evening | Snow Level | 6500' | 5500' | 5000' | 5500' | 5000' | 6000' | 6500' | 7000' |
| Wednesday Night | Snow Level | 6500' | 5000' | 5000' | 5500' | 5000' | 6000' | 6000' | 6500' |
| Thursday Morning | Snow Level | 6500' | 5000' | 4500' | 5500' | 4500' | 6000' | 6000' | 6000' |
| Thursday Afternoon | Snow Level | 6500' | 5000' | 4500' | 5500' | 4500' | 5500' | 5500' | 6000' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 4500' |
| Tuesday Night |
Snow Level 6000' |
| Wednesday Morning |
Snow Level 7000' |
| Wednesday Afternoon |
Snow Level 7000' |
| Wednesday Evening |
Snow Level 6500' |
| Wednesday Night |
Snow Level 6500' |
| Thursday Morning |
Snow Level 6500' |
| Thursday Afternoon |
Snow Level 6500' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1500' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 4500' |
| Wednesday Afternoon |
Snow Level 5000' |
| Wednesday Evening |
Snow Level 5500' |
| Wednesday Night |
Snow Level 5000' |
| Thursday Morning |
Snow Level 5000' |
| Thursday Afternoon |
Snow Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1500' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 4500' |
| Wednesday Evening |
Snow Level 5000' |
| Wednesday Night |
Snow Level 5000' |
| Thursday Morning |
Snow Level 4500' |
| Thursday Afternoon |
Snow Level 4500' |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1500' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3500' |
| Wednesday Afternoon |
Snow Level 4500' |
| Wednesday Evening |
Snow Level 5500' |
| Wednesday Night |
Snow Level 5500' |
| Thursday Morning |
Snow Level 5500' |
| Thursday Afternoon |
Snow Level 5500' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1500' |
| Tuesday Night |
Snow Level 3000' |
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 4500' |
| Wednesday Evening |
Snow Level 5000' |
| Wednesday Night |
Snow Level 5000' |
| Thursday Morning |
Snow Level 4500' |
| Thursday Afternoon |
Snow Level 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 2000' |
| Tuesday Night |
Snow Level 3500' |
| Wednesday Morning |
Snow Level 5000' |
| Wednesday Afternoon |
Snow Level 5500' |
| Wednesday Evening |
Snow Level 6000' |
| Wednesday Night |
Snow Level 6000' |
| Thursday Morning |
Snow Level 6000' |
| Thursday Afternoon |
Snow Level 5500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 2500' |
| Tuesday Night |
Snow Level 4000' |
| Wednesday Morning |
Snow Level 5000' |
| Wednesday Afternoon |
Snow Level 6000' |
| Wednesday Evening |
Snow Level 6500' |
| Wednesday Night |
Snow Level 6000' |
| Thursday Morning |
Snow Level 6000' |
| Thursday Afternoon |
Snow Level 5500' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 2500' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 6000' |
| Wednesday Afternoon |
Snow Level 7000' |
| Wednesday Evening |
Snow Level 7000' |
| Wednesday Night |
Snow Level 6500' |
| Thursday Morning |
Snow Level 6000' |
| Thursday Afternoon |
Snow Level 6000' |
* 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
| Tuesday Night | Monday | Monday Night | Monday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.25 - 0.50 | 0.25 | 0.25 | 0.50 - 0.75 |
| Mt Baker Ski Area | 0.50 - 0.75 | 0.75 | 0.75 | 1.00 - 1.50 |
| Washington Pass | 0.25 | 0.50 | 0.25 - 0.50 | 0.75 -1.00 |
| Leavenworth | LT 0.25 | LT 0.25 | 0.25 | 0.50 - 0.75 |
| Stevens Pass | 1.00 | 1.00 | 1.00 | 1.50 |
| Snoqualmie Pass | 1.00 - 1.50 | 1.50 | 1.50 | 1.50 - 2.00 |
| Mission Ridge | LT 0.25 | LT 0.25 | 0.25 | 0.25 - 0.50 |
| Crystal Mt | 0.50 - 0.75 | 0.75 | 0.75 | 0.75 -1.00 |
| Paradise | 1.50 | 1.50 - 2.00 | 1.50 | 1.50 |
| White Pass | 0.75 -1.00 | 1.00 - 1.50 | 0.75 | 0.75 -1.00 |
| Mt Hood Meadows | 0.50 - 0.75 | 1.00 | 0.75 | 0.50 - 0.75 |
| Timberline | 0.75 | 1.00 | 0.75 | 0.50 - 0.75 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 - 0.50 |
| Monday | 0.25 |
| Monday Night | 0.25 |
| Monday | 0.50 - 0.75 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Monday | 0.75 |
| Monday Night | 0.75 |
| Monday | 1.00 - 1.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 |
| Monday | 0.50 |
| Monday Night | 0.25 - 0.50 |
| Monday | 0.75 -1.00 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Monday | LT 0.25 |
| Monday Night | 0.25 |
| Monday | 0.50 - 0.75 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.00 |
| Monday | 1.00 |
| Monday Night | 1.00 |
| Monday | 1.50 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Monday | 1.50 |
| Monday Night | 1.50 |
| Monday | 1.50 - 2.00 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Monday | LT 0.25 |
| Monday Night | 0.25 |
| Monday | 0.25 - 0.50 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Monday | 0.75 |
| Monday Night | 0.75 |
| Monday | 0.75 -1.00 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.50 |
| Monday | 1.50 - 2.00 |
| Monday Night | 1.50 |
| Monday | 1.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.75 -1.00 |
| Monday | 1.00 - 1.50 |
| Monday Night | 0.75 |
| Monday | 0.75 -1.00 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Monday | 1.00 |
| Monday Night | 0.75 |
| Monday | 0.50 - 0.75 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.75 |
| Monday | 1.00 |
| Monday Night | 0.75 |
| Monday | 0.50 - 0.75 |
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: 1:49 PM PST Tuesday, February 4, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | SW 10 - 20 | SSW 15 - 25 | W 20 - 30 | W 10 - 20 | W 15 - 25 |
| Tuesday Night | W 15 - 25 | SW 15 - 25 | W 20 - 30 | W 10 - 20 | W 25 - 35 |
| Wednesday Morning | W 15 - 25 | SW 15 - 25 | W 25 - 35 | W 15 - 25 | W 40 - 55 |
| Wednesday Afternoon | W 20 - 30 | W 20 - 30 | W 30 - 40 | W 20 - 30 | W 40 - 55 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | SW 10 - 20 |
| Tuesday Night | W 15 - 25 |
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | SSW 15 - 25 |
| Tuesday Night | SW 15 - 25 |
| Wednesday Morning | SW 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | W 20 - 30 |
| Tuesday Night | W 20 - 30 |
| Wednesday Morning | W 25 - 35 |
| Wednesday Afternoon | W 30 - 40 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | W 10 - 20 |
| Tuesday Night | W 10 - 20 |
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | W 15 - 25 |
| Tuesday Night | W 25 - 35 |
| Wednesday Morning | W 40 - 55 |
| Wednesday Afternoon | W 40 - 55 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | SW 10 - 20 |
| Tuesday Night | W 15 - 25 |
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | SSW 15 - 25 |
| Tuesday Night | SW 15 - 25 |
| Wednesday Morning | SW 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | W 20 - 30 |
| Tuesday Night | W 20 - 30 |
| Wednesday Morning | W 25 - 35 |
| Wednesday Afternoon | W 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | W 10 - 20 |
| Tuesday Night | W 10 - 20 |
| Wednesday Morning | W 15 - 25 |
| Wednesday Afternoon | W 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | W 15 - 25 |
| Tuesday Night | W 25 - 35 |
| Wednesday Morning | W 40 - 55 |
| Wednesday Afternoon | W 40 - 55 |
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 | |
|---|---|---|---|---|---|
| Tuesday Evening | W 35 - 45 | W 30 - 40 | NW 45 - 60 | NW 45 - 60 | NW 45 - 60 |
| Tuesday Night | W 35 - 45 | W 35 - 45 | NW 40 - 55 | NW 45 - 60 | NW 50 - 65 |
| Wednesday Morning | W 35 - 45 | W 40 - 55 | W 45 - 60 | NW 45 - 60 | NW 55 - 70 |
| Wednesday Afternoon | WNW 30 - 40 | WNW 40 - 55 | NW 50 - 65 | NW 50 - 65 | NW 55 - 70 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | W 35 - 45 |
| Tuesday Night | W 35 - 45 |
| Wednesday Morning | W 35 - 45 |
| Wednesday Afternoon | WNW 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Evening | W 30 - 40 |
| Tuesday Night | W 35 - 45 |
| Wednesday Morning | W 40 - 55 |
| Wednesday Afternoon | WNW 40 - 55 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | NW 45 - 60 |
| Tuesday Night | NW 40 - 55 |
| Wednesday Morning | W 45 - 60 |
| Wednesday Afternoon | NW 50 - 65 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | NW 45 - 60 |
| Tuesday Night | NW 45 - 60 |
| Wednesday Morning | NW 45 - 60 |
| Wednesday Afternoon | NW 50 - 65 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | NW 45 - 60 |
| Tuesday Night | NW 50 - 65 |
| Wednesday Morning | NW 55 - 70 |
| Wednesday Afternoon | NW 55 - 70 |
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: 1:49 PM PST Tuesday, February 4, 2020
Extended Weather Synopsis for Monday night through Monday
After a thorough soaking in the Tuesday through Thursday event, we should get a brief break late Thursday night. Precipitation seems to turn-off rather rapidly as a building high-pressure ridge closes the faucet on the atmospheric river. Temperatures cool and drag snow levels down as showers end. The break looks short-lived as an approaching storm system steers toward the Pacific Northwest. This system is a long way out, and the weather models don't quite agree on the specifics at this point.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday Night | Snow Level | 3000' - 5000' | 3500' - 5500' | 5000' - 6500' | |
| Friday | Snow Level | 2500' - 3500' | 3000' - 4000' | 4500' - 6000' | |
| Friday Night | Snow Level | 2000' - 3000' | 2500' - 4000' | 4500' - 5500' | * |
| Saturday | Snow Level | 2000' - 3000' | 2000' - 3000' | 2500' - 4500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Snow Level 3000' - 5000' |
| Friday |
Snow Level 2500' - 3500' |
| Friday Night |
Snow Level 2000' - 3000' (Easterly Flow *) |
| Saturday |
Snow Level 2000' - 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Snow Level 3500' - 5500' |
| Friday |
Snow Level 3000' - 4000' |
| Friday Night |
Snow Level 2500' - 4000' (Easterly Flow *) |
| Saturday |
Snow Level 2000' - 3000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Snow Level 5000' - 6500' |
| Friday |
Snow Level 4500' - 6000' |
| Friday Night |
Snow Level 4500' - 5500' (Easterly Flow *) |
| Saturday |
Snow Level 2500' - 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.
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 4, 2020
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