Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Thursday & Monday
0845 Update: Snow levels lowered for most zones this morning.
The deluge continues for the west-side of the central and south Washington Cascades. An atmospheric river continues to deliver copious amounts of moisture up and over an upper level ridge positioned well offshore, resulting in NW flow aloft. The second warm frontal pulse will arrive today with very heavy rain and snow expected from about the Mountain Loop Highway and to White Pass. More moderate amounts are expected for the Olympics, Mt. Baker and Mt. Hood. Strong NW flow will result in strong drying for the lee side of the Cascades today, with much lighter amounts expected not far to the east of the Cascade crest. West winds will be strongest from about the I-90 corridor and south, with extreme winds continuing to rock the Mt. Hood area throughout the day.
Snow levels were a bit cooler than forecast overnight, but they are still expected to rise about 500-1000 ft from their current levels today and peak in the evening. The frontal boundary will sag south overnight, delivering one more punch of moisture before beginning to wind down Friday morning. Precipitation rates should decrease on Friday, but there won't be a break in the weather. Another warm front associated with a low pressure system approaching the northern end of Vancouver Island begins to lift into the area during the afternoon hours, renewing precipitation over the area.
Weather Forecast
Hurricane Ridge
| Thursday | Light to moderate rain and snow. |
Mt. Baker
| Thursday | Light to moderate rain and snow. Slight warming trend. |
Washington Pass and Leavenworth
| Thursday | Light to occasionally moderate rain and snow, heaviest near the Cascade crest. Slight warming trend. |
Stevens and Snoqualmie Pass
| Thursday | Heavy rain and snow. Snow levels near Pass level at Stevens and above Pass level at Snoqualmie. Strong west winds. Slight warming trend. |
Mt. Rainier, Crystal and White Pass
| Thursday | Moderate to heavy rain and snow, heaviest at Paradise. Strong west winds. Slight warming trend. |
Mt. Hood
| Thursday | Moderate rain and snow. Strong to extreme west winds. Slight warming trend. |
Issued: 8:49 AM PST Thursday, February 6, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Morning | Snow Level | 5000' | 3000' | 3500' | 4000' | 3500' | 4500' | 5000' | 6500' |
| Thursday Afternoon | Snow Level | 5500' | 4000' | 4500' | 5000' | 4000' | 5500' | 6000' | 7000' |
| Thursday Evening | Snow Level | 6000' | 4500' | 4000' | 5000' | 5000' | 5500' | 5500' | 6000' |
| Thursday Night | Snow Level | 5000' | 4000' | 4000' | 4500' | 4500' | 5000' | 5500' | 6500' |
| Friday Morning | Snow Level | 4500' | 3500' | 3500' | 4000' | 4000' | 4500' | 5000' | 6500' |
| Friday Afternoon | Snow Level | 4500' | 4000' | 4000' | 4500' | 4500' | 5000' | 5000' | 6000' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5000' |
| Thursday Afternoon |
Snow Level 5500' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5000' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 4500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Evening |
Snow Level 4500' |
| Thursday Night |
Snow Level 4000' |
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 4000' |
| Washington Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 4000' |
| Thursday Night |
Snow Level 4000' |
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Thursday Morning |
Snow Level 4000' |
| Thursday Afternoon |
Snow Level 5000' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4000' |
| Friday Afternoon |
Snow Level 4500' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 4000' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4000' |
| Friday Afternoon |
Snow Level 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 4500' |
| Thursday Afternoon |
Snow Level 5500' |
| Thursday Evening |
Snow Level 5500' |
| Thursday Night |
Snow Level 5000' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Morning |
Snow Level 5000' |
| Thursday Afternoon |
Snow Level 6000' |
| Thursday Evening |
Snow Level 5500' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5000' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning |
Snow Level 6500' |
| Thursday Afternoon |
Snow Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 6500' |
| Friday Morning |
Snow Level 6500' |
| Friday 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
| Thursday | Thursday Night | Monday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.75 | 0.25 | 0.25 |
| Mt Baker Ski Area | 0.75 | 0.25 | 0.25 - 0.50 |
| Washington Pass | 0.25 - 0.50 | LT 0.25 | LT 0.10 |
| Leavenworth | 0.25 | LT 0.25 | LT 0.10 |
| Stevens Pass | 1.50 | 1.00 - 1.50 | 0.25 - 0.50 |
| Snoqualmie Pass | 2.50 | 2.00 | 0.50 |
| Mission Ridge | LT 0.25 | LT 0.10 | LT 0.10 |
| Crystal Mt | 1.00 - 1.50 | 1.00 - 1.50 | LT 0.25 |
| Paradise | 2.00 - 2.50 | 2.00 | 0.50 |
| White Pass | 1.50 - 2.00 | 1.50 - 2.00 | 0.25 - 0.50 |
| Mt Hood Meadows | 1.00 - 1.50 | 1.50 | 0.50 |
| Timberline | 1.50 | 1.50 - 2.00 | 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday | 0.75 |
| Thursday Night | 0.25 |
| Monday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday | 0.75 |
| Thursday Night | 0.25 |
| Monday | 0.25 - 0.50 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday | 0.25 - 0.50 |
| Thursday Night | LT 0.25 |
| Monday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Monday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday | 1.50 |
| Thursday Night | 1.00 - 1.50 |
| Monday | 0.25 - 0.50 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday | 2.50 |
| Thursday Night | 2.00 |
| Monday | 0.50 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | LT 0.10 |
| Monday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday | 1.00 - 1.50 |
| Thursday Night | 1.00 - 1.50 |
| Monday | LT 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday | 2.00 - 2.50 |
| Thursday Night | 2.00 |
| Monday | 0.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday | 1.50 - 2.00 |
| Thursday Night | 1.50 - 2.00 |
| Monday | 0.25 - 0.50 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday | 1.00 - 1.50 |
| Thursday Night | 1.50 |
| Monday | 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday | 1.50 |
| Thursday Night | 1.50 - 2.00 |
| Monday | 0.50 |
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: 8:49 AM PST Thursday, February 6, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Morning | W 15 - 25 | W 10 - 20 | W 20 - 30 | W 20 - 30 | W 40 - 50 |
| Thursday Afternoon | W 20 - 30 | W 15 - 25 | W 25 - 35 | W 30 - 40 | W 40 - 50 |
| Thursday Evening | W 20 - 30 | W 10 - 20 | W 25 - 35 | W 25 - 35 | W 40 - 50 |
| Thursday Night | W 10 - 20 | W 15 - 25 | W 25 - 35 | W 20 - 30 | W 40 - 50 |
| Friday Morning | SW 5 - 15 | SW 5 - 15 | W 15 - 25 | W 15 - 25 | W 35 - 45 |
| Friday Afternoon | SW 15 - 25 | S 20 - 30 | SW 20 - 30 | SW 20 - 30 | W 30 - 40 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning | W 15 - 25 |
| Thursday Afternoon | W 20 - 30 |
| Thursday Evening | W 20 - 30 |
| Thursday Night | W 10 - 20 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | W 15 - 25 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | W 15 - 25 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 25 - 35 |
| Thursday Evening | W 25 - 35 |
| Thursday Night | W 25 - 35 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 30 - 40 |
| Thursday Evening | W 25 - 35 |
| Thursday Night | W 20 - 30 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning | W 40 - 50 |
| Thursday Afternoon | W 40 - 50 |
| Thursday Evening | W 40 - 50 |
| Thursday Night | W 40 - 50 |
| Friday Morning | W 35 - 45 |
| Friday Afternoon | W 30 - 40 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Morning | W 15 - 25 |
| Thursday Afternoon | W 20 - 30 |
| Thursday Evening | W 20 - 30 |
| Thursday Night | W 10 - 20 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | W 15 - 25 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | W 15 - 25 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | S 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 25 - 35 |
| Thursday Evening | W 25 - 35 |
| Thursday Night | W 25 - 35 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 30 - 40 |
| Thursday Evening | W 25 - 35 |
| Thursday Night | W 20 - 30 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | SW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | W 40 - 50 |
| Thursday Afternoon | W 40 - 50 |
| Thursday Evening | W 40 - 50 |
| Thursday Night | W 40 - 50 |
| Friday Morning | W 35 - 45 |
| Friday 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 | |
|---|---|---|---|---|---|
| Thursday Morning | W 30 - 40 | W 35 - 45 | NW 60 - 70 | NW 55 - 65 | NW 60 - 70 |
| Thursday Afternoon | W 30 - 40 | W 35 - 45 | NW 60 - 70 | NW 55 - 65 | NW 60 - 70 |
| Thursday Evening | W 30 - 40 | W 35 - 45 | NW 55 - 65 | NW 55 - 65 | NW 60 - 70 |
| Thursday Night | W 30 - 40 | W 30 - 40 | WNW 40 - 50 | WNW 50 - 60 | WNW 60 - 70 |
| Friday Morning | W 30 - 40 | W 30 - 40 | WNW 40 - 50 | WNW 50 - 60 | WNW 60 - 70 |
| Friday Afternoon | SW 30 - 40 | SW 35 - 45 | W 40 - 50 | W 40 - 50 | W 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | W 30 - 40 |
| Thursday Afternoon | W 30 - 40 |
| Thursday Evening | W 30 - 40 |
| Thursday Night | W 30 - 40 |
| Friday Morning | W 30 - 40 |
| Friday Afternoon | SW 30 - 40 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Morning | W 35 - 45 |
| Thursday Afternoon | W 35 - 45 |
| Thursday Evening | W 35 - 45 |
| Thursday Night | W 30 - 40 |
| Friday Morning | W 30 - 40 |
| Friday Afternoon | SW 35 - 45 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | NW 60 - 70 |
| Thursday Afternoon | NW 60 - 70 |
| Thursday Evening | NW 55 - 65 |
| Thursday Night | WNW 40 - 50 |
| Friday Morning | WNW 40 - 50 |
| Friday Afternoon | W 40 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | NW 55 - 65 |
| Thursday Afternoon | NW 55 - 65 |
| Thursday Evening | NW 55 - 65 |
| Thursday Night | WNW 50 - 60 |
| Friday Morning | WNW 50 - 60 |
| Friday Afternoon | W 40 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | NW 60 - 70 |
| Thursday Afternoon | NW 60 - 70 |
| Thursday Evening | NW 60 - 70 |
| Thursday Night | WNW 60 - 70 |
| Friday Morning | WNW 60 - 70 |
| Friday 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Feb 6, 2020
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