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 Tuesday
A cool, unstable airmass and westerly flow continue to bring snow showers to our mountains Friday evening, but they should be light. An approaching frontal system moves into our coastal waters, bringing aligning a warm front with the Washington Coast by 4 AM on Saturday, and increasing light snow across our region. The warm front crosses the region during the day, bringing increasing moisture with generally moderate snowfall and a rising snow level. While this should be a mostly snow event for Snoqualmie, the snow level could bump up briefly just above the 3000 ft level during the mid-day hours as snow levels rise 1000-2000 ft across the region with the warm front. This should be a 4-8" by the end of the day Saturday for Mt. Baker, Stevens Pass, and Snoqualmie Pass. Paradise and Mt Hood may see around 12". The frontal system comes with moderate to strong alpine winds, mainly south of Mt. Baker, but winds should not be as strong as with the previous system.
The region remains briefly in the warm sector of the storm with a cold front dropping south late in the day on Saturday, cutting off precipitation from north to south Saturday night. Mt. Hood may close to another foot of snow Saturday night before.
A trough filters into the region on Sunday, bringing convergence activity and some snow showers back to the region with colder temperatures late Saturday night and Sunday.
Weather Forecast
Hurricane Ridge
| Friday Night | Cloudy with light snow developing. |
| Saturday | Light snow ending late in the day. Light to moderate 5000 ft winds. Rising snow levels. |
Mt. Baker
| Friday Night | Snow showers transitioning to increasing light snow during the evening hours. |
| Saturday | Light to moderate snow becoming light in the afternoon. Moderate 5000 ft winds in the morning becoming light to moderate. Rising snow levels. |
Washington Pass and Leavenworth
| Friday Night | Light snow showers in the evening near the Cascade Crest changing to light snow. |
| Saturday | Light snow near Washington Pass with and light to moderate snow in the central Cascades. Rising snow levels. |
Stevens and Snoqualmie Pass
| Friday Night | Light snow becoming light to moderate during the early morning hours. Decreasing W winds through the Passes 5-15 mph. |
| Saturday | Moderate snow. Light to moderate 5000 ft winds becoming moderate in the afternoon. Increasing westerly winds through the Passes: 10-20 mph. Increasing 5000 ft winds light to moderate becoming moderate. Rising snow levels. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Increasing light snow. |
| Saturday | Heavy snow at Paradise; moderate snow at White Pass; and light snow at Crystal. Rising snow levels. |
Mt. Hood
| Friday Night | Increasing light snow at Mt. Hood. |
| Saturday | Moderate rain and snow becoming heavy by the afternoon. Increasing strong alpine winds. Rising snow levels. |
Issued: 2:36 PM PST Friday, February 14, 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 | 2000' | 1500' | 1500' | 2000' | 2000' | 2000' | 2000' | 2500' |
| Friday Night | Snow Level | 3000' | 1500' | 2000' | 2500' | 2000' | 2000' | 2000' | 2500' |
| Saturday Morning | Snow Level | 4000' | 2500' | 2500' | 3000' | 3000' | 3000' | 3000' | 3000' |
| Saturday Afternoon | Snow Level | 3500' | 2500' | 3000' | 3000' | 3000' | 3000' | 3500' | 3500' |
| Saturday Evening | Snow Level | 2000' | 1500' | 2000' | 2500' | 2000' | 2000' | 2500' | 3500' |
| Saturday Night | Snow Level | 1500' | 1000' | 1500' | 1500' | 1500' | 1500' | 1500' | 2000' |
| Sunday Morning | Snow Level | 2000' | 1000' | 1000' | 1500' | 1500' | 1500' | 2000' | 2000' |
| Sunday Afternoon | Snow Level | 2000' | 1500' | 2000' | 2500' | 2000' | 2000' | 2000' | 2500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 3000' |
| Saturday Morning |
Snow Level 4000' |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Snow Level 1500' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1500' |
| Saturday Night |
Snow Level 1000' |
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 1500' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 2000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 2500' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2500' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3000' |
| Saturday Evening |
Snow Level 2000' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 2000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Evening |
Snow Level 2500' |
| Saturday Night |
Snow Level 1500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Snow Level 2500' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3500' |
| Saturday Evening |
Snow Level 3500' |
| Saturday Night |
Snow Level 2000' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' |
* 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 | Tuesday | Tuesday Night | Tuesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.25 | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | 0.25 | 0.50 | LT 0.25 | LT 0.25 |
| Washington Pass | LT 0.10 | LT 0.25 | LT 0.10 | LT 0.25 |
| Leavenworth | 0 | LT 0.10 | LT 0.10 | 0 |
| Stevens Pass | 0.25 | 0.50 | 0.25 | LT 0.25 |
| Snoqualmie Pass | 0.25 - 0.50 | 0.50 - 0.75 | 0.25 | 0.25 |
| Mission Ridge | 0 | LT 0.10 | LT 0.10 | 0 |
| Crystal Mt | LT 0.10 | LT 0.25 | LT 0.25 | LT 0.10 |
| Paradise | 0.25 | 1.00 - 1.50 | 0.25 | 0.25 |
| White Pass | LT 0.25 | 0.50 - 0.75 | 0.25 | LT 0.25 |
| Mt Hood Meadows | LT 0.10 | 1.00 | 1.00 | LT 0.25 |
| Timberline | LT 0.25 | 1.00 | 1.00 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 |
| Tuesday | 0.50 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 |
| Tuesday | 0.50 |
| Tuesday Night | 0.25 |
| Tuesday | LT 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 - 0.50 |
| Tuesday | 0.50 - 0.75 |
| Tuesday Night | 0.25 |
| Tuesday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 0.25 |
| Tuesday | 1.00 - 1.50 |
| Tuesday Night | 0.25 |
| Tuesday | 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.25 |
| Tuesday | 0.50 - 0.75 |
| Tuesday Night | 0.25 |
| Tuesday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Tuesday | 1.00 |
| Tuesday Night | 1.00 |
| Tuesday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.25 |
| Tuesday | 1.00 |
| Tuesday Night | 1.00 |
| Tuesday | LT 0.25 |
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: 2:36 PM PST Friday, February 14, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | SW 5 - 15 | SW 5 - 15 | W 15 - 25 | W 10 - 20 | W 20 - 30 |
| Friday Night | SW 5 - 15 | SSW 5 - 15 | W 15 - 25 | WSW 10 - 20 | W 15 - 25 |
| Saturday Morning | SSW 10 - 20 | S 15 - 25 | WSW 10 - 20 | SW 10 - 20 | WSW 20 - 30 |
| Saturday Afternoon | WSW 10 - 20 | SSW 10 - 20 | WSW 20 - 30 | WSW 15 - 25 | WSW 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | WSW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SSW 5 - 15 |
| Saturday Morning | S 15 - 25 |
| Saturday Afternoon | SSW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | W 15 - 25 |
| Friday Night | W 15 - 25 |
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | W 10 - 20 |
| Friday Night | WSW 10 - 20 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | WSW 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | W 20 - 30 |
| Friday Night | W 15 - 25 |
| Saturday Morning | WSW 20 - 30 |
| Saturday Afternoon | WSW 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SSW 10 - 20 |
| Saturday Afternoon | WSW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SSW 5 - 15 |
| Saturday Morning | S 15 - 25 |
| Saturday Afternoon | SSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 15 - 25 |
| Friday Night | W 15 - 25 |
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | W 10 - 20 |
| Friday Night | WSW 10 - 20 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | WSW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | W 20 - 30 |
| Friday Night | W 15 - 25 |
| Saturday Morning | WSW 20 - 30 |
| Saturday Afternoon | WSW 20 - 30 |
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 15 - 25 | W 25 - 35 | W 30 - 40 | W 30 - 40 | W 35 - 45 |
| Friday Night | W 25 - 35 | W 30 - 40 | W 35 - 45 | W 30 - 40 | WNW 35 - 45 |
| Saturday Morning | WSW 25 - 35 | WSW 35 - 45 | W 35 - 45 | W 30 - 40 | W 30 - 40 |
| Saturday Afternoon | WSW 25 - 35 | WSW 30 - 40 | W 35 - 45 | W 30 - 40 | W 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WSW 15 - 25 |
| Friday Night | W 25 - 35 |
| Saturday Morning | WSW 25 - 35 |
| Saturday Afternoon | WSW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | W 25 - 35 |
| Friday Night | W 30 - 40 |
| Saturday Morning | WSW 35 - 45 |
| Saturday Afternoon | WSW 30 - 40 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 30 - 40 |
| Friday Night | W 35 - 45 |
| Saturday Morning | W 35 - 45 |
| Saturday Afternoon | W 35 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | W 30 - 40 |
| Friday Night | W 30 - 40 |
| Saturday Morning | W 30 - 40 |
| Saturday Afternoon | W 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | W 35 - 45 |
| Friday Night | WNW 35 - 45 |
| Saturday Morning | W 30 - 40 |
| Saturday Afternoon | W 40 - 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: 2:36 PM PST Friday, February 14, 2020
Extended Weather Synopsis for Tuesday night through Tuesday
This snow shower activity continues on an increasingly NW flow late Sunday night into Monday with colder than average temperatures to start the week. Skies should begin to clear Sunday night and Monday as high pressure builds into the region from offshore. The high eastward and should be at our coast by Tuesday evening, bringing milder air to the west of the Cascade Crest with a cold pool staying to the east of the Crest. This should develop increasing easterly flow through the Passes late Tuesday night and Wednesday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Snow Level | 500' - 1500' | 1000' - 2000' | 1500' - 2500' | |
| Monday | Snow Level | 1000' - 2000' | 1000' - 2000' | 1500' - 2500' | |
| Monday Night | Freezing Level | 1000' - 2000' | 2000' - 3000' | 2500' - 3500' | |
| Tuesday | Freezing Level | 2500' - 4500' | 2500' - 4500' | 3000' - 5000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Snow Level 500' - 1500' |
| Monday |
Snow Level 1000' - 2000' |
| Monday Night |
Freezing Level 1000' - 2000' |
| Tuesday |
Freezing Level 2500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Snow Level 1000' - 2000' |
| Monday |
Snow Level 1000' - 2000' |
| Monday Night |
Freezing Level 2000' - 3000' |
| Tuesday |
Freezing Level 2500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Snow Level 1500' - 2500' |
| Monday |
Snow Level 1500' - 2500' |
| Monday Night |
Freezing Level 2500' - 3500' |
| Tuesday |
Freezing Level 3000' - 5000' |
* 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 14, 2020
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.