Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Tuesday
Precipitation is just beginning to reach the mountain areas this morning (6am). Look for snow to become more consistent and increase throughout the day with the highest snowfall rates in the afternoon hours. Even though snow levels are creeping up as the winds turn more southwesterly, this should primarily be a snow event for the forecast area. Several key meteorological factors are aligning today to bring significant snowfall in most locations. Spillover east of the Cascade crest looks good on Friday, so places like Washington Pass, Leavenworth, and Mission Ridge could see a decent shot of snow. Look for generally moderate west winds even at mid and lower elevations.
The low-pressure system responsible for the snowfall Friday will move inland overnight. As it does so, we'll lose some of the forcing mechanism which will decrease snow east of the Cascades. Snow should continue along the west-slopes and passes as strong winds push moisture up onto the mountains and ring out additional snowfall. The pattern will favor areas south of I90 where stronger winds will help produce more precipitation.
Weather Forecast
Hurricane Ridge
| Friday | Snow. Moderate SW winds. |
Mt. Baker
| Friday | Snow, heavy at times. Moderate south winds. |
Washington Pass and Leavenworth
| Friday | Snow. Moderate at times. Winds SW. |
Stevens and Snoqualmie Pass
| Friday | Snow. Heavey at times. East winds at Pass level. |
Mt. Rainier, Crystal and White Pass
| Friday | Snow. Becoming heavy in the afternoon. Moderate SW winds. |
Mt. Hood
| Friday | Snow, mainly in the afternoon. Moderate SW winds. Very strong alpine winds. |
Issued: 6:38 AM PST Friday, January 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 Morning | Snow Level * | 2000' | 500' | 0' | 500' | 500' | 500' | 1000' | 2000' |
| Friday Afternoon | Snow Level * | 3000' | 1500' | 500' | 1000' | 1500' | 1500' | 2500' | 3000' |
| Friday Evening | Snow Level | 3000' | 2000' | 500' | 1000' | 2000' | 2000' | 3000' | 3000' |
| Friday Night | Snow Level | 2500' | 2000' | 1000' | 1500' | 2000' | 2000' | 2500' | 3000' |
| Saturday Morning | Snow Level | 3000' | 2000' | 1500' | 1000' | 2000' | 2000' | 2500' | 3000' |
| Saturday Afternoon | Snow Level | 2500' | 2500' | 2000' | 1500' | 2500' | 2500' | 3000' | 3000' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Snow Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Friday Evening |
Snow Level 500' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2000' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Friday Evening |
Snow Level 1000' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 1500' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 2500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 2000' |
| Saturday Morning |
Snow Level 2000' |
| Saturday Afternoon |
Snow Level 2500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Snow Level 1000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 2500' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' |
| Friday Night |
Snow Level 2500' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 3000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Snow Level 2000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Friday Evening |
Snow Level 3000' |
| Friday Night |
Snow Level 3000' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3000' |
* 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 | Friday Night | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.50 - 0.75 | 0.50 | 0.25 |
| Mt Baker Ski Area | 1.50 | 0.50 - 0.75 | 0.25 - 0.50 |
| Washington Pass | 0.75 -1.00 | 0.25 - 0.50 | LT 0.10 |
| Leavenworth | 0.25 - 0.50 | LT 0.25 | LT 0.10 |
| Stevens Pass | 0.75 -1.00 | 0.50 - 0.75 | 0.50 |
| Snoqualmie Pass | 1.00 - 1.50 | 1.00 | 1.00 |
| Mission Ridge | 0.25 - 0.50 | LT 0.25 | LT 0.10 |
| Crystal Mt | 0.75 -1.00 | 0.50 - 0.75 | 0.50 - 0.75 |
| Paradise | 1.50 | 1.00 - 1.50 | 1.00 - 1.50 |
| White Pass | 0.75 -1.00 | 0.75 -1.00 | 0.75 |
| Mt Hood Meadows | 1.00 - 1.50 | 1.00 - 1.50 | 1.50 |
| Timberline | 1.00 - 1.50 | 1.50 | 1.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | 0.50 - 0.75 |
| Friday Night | 0.50 |
| Tuesday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | 1.50 |
| Friday Night | 0.50 - 0.75 |
| Tuesday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | 0.75 -1.00 |
| Friday Night | 0.25 - 0.50 |
| Tuesday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0.25 - 0.50 |
| Friday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | 0.75 -1.00 |
| Friday Night | 0.50 - 0.75 |
| Tuesday | 0.50 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | 1.00 - 1.50 |
| Friday Night | 1.00 |
| Tuesday | 1.00 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | 0.25 - 0.50 |
| Friday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | 0.75 -1.00 |
| Friday Night | 0.50 - 0.75 |
| Tuesday | 0.50 - 0.75 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | 1.50 |
| Friday Night | 1.00 - 1.50 |
| Tuesday | 1.00 - 1.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | 0.75 -1.00 |
| Friday Night | 0.75 -1.00 |
| Tuesday | 0.75 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | 1.00 - 1.50 |
| Friday Night | 1.00 - 1.50 |
| Tuesday | 1.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | 1.00 - 1.50 |
| Friday Night | 1.50 |
| Tuesday | 1.50 |
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: 6:38 AM PST Friday, January 10, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | SSW 20 - 30 | S 15 - 25 | S 10 - 20 | SW 10 - 20 | SW 15 - 25 |
| Friday Afternoon | SW 15 - 25 | SSW 10 - 20 | SW 15 - 25 | SW 10 - 20 | SW 20 - 30 |
| Friday Evening | SW 10 - 20 | S 10 - 20 | SW 20 - 30 | SW 10 - 20 | WSW 25 - 35 |
| Friday Night | W 5 - 15 | S 5 - 15 | SW 10 - 20 | SW 5 - 15 | WSW 25 - 35 |
| Saturday Morning | WNW 10 - 20 | SW 5 - 15 | W 10 - 20 | W 10 - 20 | W 30 - 40 |
| Saturday Afternoon | WNW 10 - 20 | W 5 - 15 | W 15 - 25 | W 15 - 25 | W 30 - 40 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | SSW 20 - 30 |
| Friday Afternoon | SW 15 - 25 |
| Friday Evening | SW 10 - 20 |
| Friday Night | W 5 - 15 |
| Saturday Morning | WNW 10 - 20 |
| Saturday Afternoon | WNW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | S 15 - 25 |
| Friday Afternoon | SSW 10 - 20 |
| Friday Evening | S 10 - 20 |
| Friday Night | S 5 - 15 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SW 15 - 25 |
| Friday Evening | SW 20 - 30 |
| Friday Night | SW 10 - 20 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | SW 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Friday Evening | WSW 25 - 35 |
| Friday Night | WSW 25 - 35 |
| Saturday Morning | W 30 - 40 |
| Saturday Afternoon | W 30 - 40 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | SSW 20 - 30 |
| Friday Afternoon | SW 15 - 25 |
| Friday Evening | SW 10 - 20 |
| Friday Night | W 5 - 15 |
| Saturday Morning | WNW 10 - 20 |
| Saturday Afternoon | WNW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | S 15 - 25 |
| Friday Afternoon | SSW 10 - 20 |
| Friday Evening | S 10 - 20 |
| Friday Night | S 5 - 15 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SW 15 - 25 |
| Friday Evening | SW 20 - 30 |
| Friday Night | SW 10 - 20 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | SW 10 - 20 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Friday Evening | WSW 25 - 35 |
| Friday Night | WSW 25 - 35 |
| 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 Morning | WSW 35 - 45 | WSW 35 - 45 | W 35 - 45 | W 40 - 55 | WNW 40 - 55 |
| Friday Afternoon | W 40 - 55 | W 40 - 55 | W 40 - 55 | WSW 45 - 60 | W 45 - 60 |
| Friday Evening | SW 30 - 40 | WSW 30 - 40 | WSW 35 - 45 | W 40 - 55 | W 50 - 65 |
| Friday Night | SW 20 - 30 | SW 20 - 30 | SW 30 - 40 | W 35 - 45 | W 50 - 65 |
| Saturday Morning | W 10 - 20 | W 15 - 25 | W 20 - 30 | WNW 30 - 40 | WNW 50 - 65 |
| Saturday Afternoon | W 25 - 35 | W 25 - 35 | WNW 30 - 40 | WNW 35 - 45 | WNW 50 - 65 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | WSW 35 - 45 |
| Friday Afternoon | W 40 - 55 |
| Friday Evening | SW 30 - 40 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | WSW 35 - 45 |
| Friday Afternoon | W 40 - 55 |
| Friday Evening | WSW 30 - 40 |
| Friday Night | SW 20 - 30 |
| Saturday Morning | W 15 - 25 |
| Saturday Afternoon | W 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | W 35 - 45 |
| Friday Afternoon | W 40 - 55 |
| Friday Evening | WSW 35 - 45 |
| Friday Night | SW 30 - 40 |
| Saturday Morning | W 20 - 30 |
| Saturday Afternoon | WNW 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | W 40 - 55 |
| Friday Afternoon | WSW 45 - 60 |
| Friday Evening | W 40 - 55 |
| Friday Night | W 35 - 45 |
| Saturday Morning | WNW 30 - 40 |
| Saturday Afternoon | WNW 35 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | WNW 40 - 55 |
| Friday Afternoon | W 45 - 60 |
| Friday Evening | W 50 - 65 |
| Friday Night | W 50 - 65 |
| Saturday Morning | WNW 50 - 65 |
| Saturday Afternoon | WNW 50 - 65 |
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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 9, 2020
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