Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Monday night through Monday
The second in a series of shortwave upper level troughs will slide over the area this afternoon and evening in NW flow aloft. This system will be wetter than the first one with precipitation quickly increasing later this afternoon along the west slopes of the Cascades, especially for favored areas like Snoqualmie and Stevens Passes and Paradise on Mt. Rainier. Snow levels will continue rising through the afternoon and evening until leveling off in the early morning hours on Tuesday. W to NW winds at ridgetop level will be strong through tomorrow morning before easing slightly in the afternoon.
Showers will taper down Wednesday with a short break expected between systems. There may be a few late morning/mid-day sunbreaks from Snoqualmie Pass and south on Tuesday, but as the next system approaches from the NW, expect cloud cover to fill back in for all areas in Washington by mid to late afternoon.
The next system to pass through in this progressive pattern will be a better developed frontal system with the low crossing inland into central British Columbia Tuesday night. The frontal band should pass through during the early mornings of Wednesday with steady precipitation changing to showers. Windy conditions will once again develop Tuesday night as well. A brief period of post-frontal westerly flow should allow for a period of more significant snow showers from Snoqualmie Pass and northward through Wednesday morning, perhaps localized by a Puget Sound Convergence Zone. There should be some drying and clearing on Wednesday afternoon particularly for the Mt. Hood area, the east slopes of the Cascades and the south Washington Cascades.
Weather Forecast
Hurricane Ridge
| Monday Night | Periods of light rain and snow. |
| Tuesday | Light scattered rain and snow showers in the morning with a few sunbreaks mid-day. Light rain and snow developing in the afternoon. |
Mt. Baker
| Monday Night | Light to moderate rain and snow. Strong winds. |
| Tuesday | Light scattered rain and snow showers in the morning with a few sunbreaks mid-day. Light rain and snow developing late in the afternoon. |
Washington Pass and Leavenworth
| Monday Night | Light to rain and snow developing. Strong winds. |
| Tuesday | Mostly cloudy becoming partly cloudy late morning. Clouds increasing again in the afternoon. Strong winds decreasing in the afternoon. |
Stevens and Snoqualmie Pass
| Monday Night | Moderate rain and snow, heavier Snoqualmie Pass. Moderate to strong west winds. |
| Tuesday | Light scattered rain and snow showers in the morning with a few sunbreaks mid-day. Clouds increasing again in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday Night | Light to moderate rain and snow, heaviest Paradise area. Moderate to strong west winds. |
| Tuesday | Light scattered rain and snow showers in the morning becoming mostly cloudy with a few sunbreaks mid-day. Clouds increasing again in the afternoon. |
Mt. Hood
| Monday Night | Light to moderate rain and snow developing this evening. Strong to extreme winds. |
| Tuesday | Light isolated rain and snow showers in the morning becoming partly to mostly cloudy late morning. Clouds increasing again in the afternoon. Strong winds decreasing in the afternoon. |
Issued: 2:20 PM PST Monday, March 2, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Evening | Snow Level | 6000' | 4500' | 4000' | 5500' | 5000' | 5000' | 6000' | 7000' |
| Monday Night | Snow Level | 5000' | 5000' | 4000' | 5000' | 4500' | 5000' | 5000' | 6500' |
| Tuesday Morning | Snow Level | 4000' | 3500' | 3500' | 4500' | 4000' | 4000' | 4000' | 6000' |
| Tuesday Afternoon | Snow Level | 4000' | 3500' | 4000' | 4500' | 3500' | 4000' | 4500' | 5500' |
| Tuesday Evening | Snow Level | 3000' | 3000' | 2500' | 3500' | 3000' | 3500' | 4000' | 4500' |
| Tuesday Night | Snow Level | 2500' | 2500' | 2000' | 3000' | 2500' | 3000' | 3500' | 4500' |
| Wednesday Morning | Snow Level | 1500' | 1500' | 1500' | 2000' | 1500' | 2000' | 2000' | 4000' |
| Wednesday Afternoon | Snow Level | 2500' | 2000' | 2000' | 2500' | 2000' | 2000' | 3000' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening |
Snow Level 6000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2000' |
| Washington Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 4000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 4000' |
| Tuesday Evening |
Snow Level 2500' |
| Tuesday Night |
Snow Level 2000' |
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2000' |
| Leavenworth | Elevation |
|---|---|
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 3500' |
| Tuesday Night |
Snow Level 3000' |
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 2500' |
| Stevens Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4500' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 3500' |
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 1500' |
| Wednesday Afternoon |
Snow Level 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Tuesday Evening |
Snow Level 3500' |
| Tuesday Night |
Snow Level 3000' |
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 2000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Evening |
Snow Level 6000' |
| Monday Night |
Snow Level 5000' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 4000' |
| Tuesday Night |
Snow Level 3500' |
| Wednesday Morning |
Snow Level 2000' |
| Wednesday Afternoon |
Snow Level 3000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening |
Snow Level 7000' |
| Monday Night |
Snow Level 6500' |
| Tuesday Morning |
Snow Level 6000' |
| Tuesday Afternoon |
Snow Level 5500' |
| Tuesday Evening |
Snow Level 4500' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 4000' |
| Wednesday Afternoon |
Snow Level 3500' |
* 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
| Monday Night | Monday | Monday Night | Monday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0.50 | LT 0.10 | 0.50 - 0.75 | LT 0.10 |
| Washington Pass | LT 0.25 | 0 | 0.25 | LT 0.10 |
| Leavenworth | LT 0.10 | 0 | LT 0.10 | 0 |
| Stevens Pass | 0.50 - 0.75 | LT 0.10 | LT 0.25 | 0.25 |
| Snoqualmie Pass | 1.00 | LT 0.10 | 0.50 - 0.75 | 0.25 - 0.50 |
| Mission Ridge | LT 0.10 | 0 | LT 0.10 | LT 0.10 |
| Crystal Mt | 0.25 | LT 0.10 | LT 0.25 | LT 0.10 |
| Paradise | 1.00 | LT 0.25 | 0.75 | LT 0.10 |
| White Pass | 0.25 - 0.50 | LT 0.10 | 0.25 | LT 0.10 |
| Mt Hood Meadows | 0.25 - 0.50 | LT 0.10 | LT 0.10 | LT 0.10 |
| Timberline | 0.50 | LT 0.10 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday Night | 0.50 |
| Monday | LT 0.10 |
| Monday Night | 0.50 - 0.75 |
| Monday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.25 |
| Monday | 0 |
| Monday Night | 0.25 |
| Monday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | LT 0.10 |
| Monday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0.50 - 0.75 |
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Monday | 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday Night | 1.00 |
| Monday | LT 0.10 |
| Monday Night | 0.50 - 0.75 |
| Monday | 0.25 - 0.50 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | LT 0.10 |
| Monday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday Night | 0.25 |
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday Night | 1.00 |
| Monday | LT 0.25 |
| Monday Night | 0.75 |
| Monday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Monday | LT 0.10 |
| Monday Night | 0.25 |
| Monday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Monday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday Night | 0.50 |
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Monday | 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: 2:20 PM PST Monday, March 2, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Evening | W 20 - 30 | SW 25 - 35 | W 25 - 35 | W 25 - 35 | W 25 - 35 |
| Monday Night | W 10 - 20 | SW 15 - 25 | W 20 - 30 | W 25 - 35 | W 25 - 35 |
| Tuesday Morning | SW 5 - 15 | SW 5 - 15 | W 15 - 25 | W 15 - 25 | W 20 - 30 |
| Tuesday Afternoon | SW 10 - 20 | S 10 - 20 | SW 10 - 20 | SW 10 - 20 | SW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening | W 20 - 30 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening | SW 25 - 35 |
| Monday Night | SW 15 - 25 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | SW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Evening | W 20 - 30 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | SW 25 - 35 |
| Monday Night | SW 15 - 25 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | SW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | W 25 - 35 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | SW 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 | |
|---|---|---|---|---|---|
| Monday Evening | W 40 - 50 | W 50 - 60 | NW 50 - 60 | NW 50 - 60 | NW 35 - 45 |
| Monday Night | W 35 - 45 | W 50 - 60 | NW 45 - 55 | NW 45 - 55 | NW 40 - 50 |
| Tuesday Morning | W 35 - 45 | WNW 50 - 60 | NW 45 - 55 | NW 40 - 50 | NW 35 - 45 |
| Tuesday Afternoon | W 30 - 40 | W 45 - 55 | W 40 - 50 | W 35 - 45 | NW 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | W 40 - 50 |
| Monday Night | W 35 - 45 |
| Tuesday Morning | W 35 - 45 |
| Tuesday Afternoon | W 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Evening | W 50 - 60 |
| Monday Night | W 50 - 60 |
| Tuesday Morning | WNW 50 - 60 |
| Tuesday Afternoon | W 45 - 55 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | NW 50 - 60 |
| Monday Night | NW 45 - 55 |
| Tuesday Morning | NW 45 - 55 |
| Tuesday Afternoon | W 40 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | NW 50 - 60 |
| Monday Night | NW 45 - 55 |
| Tuesday Morning | NW 40 - 50 |
| Tuesday Afternoon | W 35 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | NW 35 - 45 |
| Monday Night | NW 40 - 50 |
| Tuesday Morning | NW 35 - 45 |
| Tuesday Afternoon | NW 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.
Issued: 2:20 PM PST Monday, March 2, 2020
Extended Weather Synopsis for Monday night through Monday
Wednesday night should be rather quiet as the next Pacific frontal system approaches. This one will feature a well defined cold front that should arrive along the Olympic peninsula and Mt. Baker area Thursday afternoon with increasing clouds for other areas. The front will slowly pass inland Thursday night. The parent Pacific low begins to open and sag south along the coast Thursday night, stalling and weakening the frontal boundary over the area and turning the flow aloft more southerly. A cool upper level trough should translate to scattered showers on Friday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Wednesday Night | Snow Level | 1000' - 2000' | 2500' - 3500' | 5000' - 6000' | |
| Thursday | Snow Level | 3000' - 4000' | 4000' - 5000' | 6000' - 7000' | |
| Thursday Night | Snow Level | 500' - 1500' | 2000' - 3500' | 4000' - 5000' | |
| Friday | Snow Level | 1000' - 2000' | 2000' - 3000' | 3500' - 4500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Night |
Snow Level 1000' - 2000' |
| Thursday |
Snow Level 3000' - 4000' |
| Thursday Night |
Snow Level 500' - 1500' |
| Friday |
Snow Level 1000' - 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Night |
Snow Level 2500' - 3500' |
| Thursday |
Snow Level 4000' - 5000' |
| Thursday Night |
Snow Level 2000' - 3500' |
| Friday |
Snow Level 2000' - 3000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Night |
Snow Level 5000' - 6000' |
| Thursday |
Snow Level 6000' - 7000' |
| Thursday Night |
Snow Level 4000' - 5000' |
| Friday |
Snow Level 3500' - 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 Mar 2, 2020
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