Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Sunday
The main snow event for the mountains has ended with another 1-2 feet of snow falling over the last 24 hours for Hurricane Ridge, nearly all west slopes of the Cascades sites including the Passes and at Mt. Hood stations. Mountain temperatures had cooled significantly, with upper elevation stations in the single digits and widespread teens elsewhere.
A broad upper level trough envelops western Canada with NW flow aloft over the PNW allowing weak disturbances to impact the area over the short term. Strong surface high pressure over the interior of British Columbia and lower pressure along the WA/OR coast will allow modified arctic air to continue seeping out west of the Cascade Crest through the Fraser River Valley. Scattered showers will transition to light continuous snow this afternoon for roughly Stevens Pass and southward as a weak low pressure system races across central Oregon. More moderate snowfall totals are likely for Mt. Hood closer to the low. Very strong westerly winds for the south Washington Cascades and Mt. Hood will ease a bit this afternoon as the low passes to the south.
The semi-permanent surface low, common in this pattern, will return off the central/southern WA coast this evening. This feature should continue to rotate showers up into the west slopes of the Cascades through Tuesday, with the best chances for additional light accumulations from Snoqualmie Pass and south to Mt. Hood.
Weather Forecast
Hurricane Ridge
| Monday | Cloudy with scattered light snow showers. Cold. |
Mt. Baker
| Monday | Cloudy with scattered light snow showers. Cold. |
Washington Pass and Leavenworth
| Monday | Cloudy with isolated light snow showers. Light snow developing in the afternoon Leavenworth area. Cold. |
Stevens and Snoqualmie Pass
| Monday | Cloudy with scattered light snow showers. Light snow developing in the afternoon. Cold. Moderate west winds in the Passes becoming light in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday | Cloudy with scattered light snow showers. Light snow developing in the afternoon. Cold. Strong alpine winds. |
Mt. Hood
| Monday | Light to moderate snow increasing mid-day. Very strong west winds decreasing in the afternoon. |
Issued: 6:58 AM PST Monday, January 13, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 1000' |
| Monday Afternoon | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 500' | 2000' |
| Monday Evening | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 500' | 2000' |
| Monday Night | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 1000' |
| Tuesday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Tuesday Afternoon | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Snow Level 0' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 500' |
| Monday Evening |
Snow Level 500' |
| Monday Night |
Snow Level 0' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 2000' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 0' |
| Tuesday Afternoon |
Snow Level 0' |
* 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 | Monday Night | Sunday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | LT 0.10 | LT 0.10 |
| Washington Pass | LT 0.10 | 0 | 0 |
| Leavenworth | LT 0.10 | LT 0.10 | LT 0.10 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.25 | LT 0.25 | LT 0.10 |
| Mission Ridge | 0 | LT 0.10 | 0 |
| Crystal Mt | LT 0.10 | LT 0.25 | LT 0.10 |
| Paradise | LT 0.25 | LT 0.25 | LT 0.25 |
| White Pass | LT 0.25 | 0.25 | LT 0.25 |
| Mt Hood Meadows | 0.50 | 0.50 | 0.25 |
| Timberline | 0.50 - 0.75 | 0.50 - 0.75 | 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | LT 0.10 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Sunday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | 0.25 |
| Sunday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0.50 |
| Monday Night | 0.50 |
| Sunday | 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0.50 - 0.75 |
| Monday Night | 0.50 - 0.75 |
| Sunday | 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: 6:58 AM PST Monday, January 13, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | S 0 - 10 | S 0 - 10 | SW 15 - 25 | W 15 - 25 | W 35 - 45 |
| Monday Afternoon | SW 0 - 10 | SE 0 - 10 | WSW 10 - 20 | W 10 - 20 | W 15 - 25 |
| Monday Evening | VAR 0 - 10 | E 5 - 15 | VAR 0 - 10 | SW 0 - 10 | W 5 - 15 |
| Monday Night | VAR 0 - 10 | E 5 - 15 | W 0 - 10 | W 0 - 10 | W 10 - 20 |
| Tuesday Morning | W 5 - 15 | E 0 - 10 | W 5 - 15 | W 0 - 10 | W 20 - 30 |
| Tuesday Afternoon | W 5 - 15 | VAR 0 - 10 | W 10 - 20 | W 10 - 20 | W 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | SW 0 - 10 |
| Monday Evening | VAR 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | SE 0 - 10 |
| Monday Evening | E 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 0 - 10 |
| Tuesday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | VAR 0 - 10 |
| Monday Night | W 0 - 10 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 10 - 20 |
| Monday Evening | SW 0 - 10 |
| Monday Night | W 0 - 10 |
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 15 - 25 |
| Monday Evening | W 5 - 15 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | W 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | SW 0 - 10 |
| Monday Evening | VAR 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | S 0 - 10 |
| Monday Afternoon | SE 0 - 10 |
| Monday Evening | E 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 0 - 10 |
| Tuesday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | VAR 0 - 10 |
| Monday Night | W 0 - 10 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 10 - 20 |
| Monday Evening | SW 0 - 10 |
| Monday Night | W 0 - 10 |
| Tuesday Morning | W 0 - 10 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 15 - 25 |
| Monday Evening | W 5 - 15 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | W 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 | |
|---|---|---|---|---|---|
| Monday Morning | WSW 15 - 25 | WSW 15 - 25 | W 25 - 35 | W 35 - 45 | W 50 - 60 |
| Monday Afternoon | WSW 10 - 20 | WSW 10 - 20 | W 30 - 40 | W 30 - 40 | W 40 - 50 |
| Monday Evening | WSW 15 - 25 | WSW 15 - 25 | WSW 25 - 35 | W 20 - 30 | W 25 - 35 |
| Monday Night | WSW 15 - 25 | WSW 10 - 20 | WSW 25 - 35 | WSW 25 - 35 | W 35 - 45 |
| Tuesday Morning | WSW 10 - 20 | WSW 10 - 20 | W 20 - 30 | W 25 - 35 | W 35 - 45 |
| Tuesday Afternoon | WSW 15 - 25 | WSW 10 - 20 | W 20 - 30 | W 25 - 35 | W 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | WSW 15 - 25 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WSW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 30 - 40 |
| Monday Evening | WSW 25 - 35 |
| Monday Night | WSW 25 - 35 |
| Tuesday Morning | W 20 - 30 |
| Tuesday Afternoon | W 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 30 - 40 |
| Monday Evening | W 20 - 30 |
| Monday Night | WSW 25 - 35 |
| Tuesday Morning | W 25 - 35 |
| Tuesday Afternoon | W 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 50 - 60 |
| Monday Afternoon | W 40 - 50 |
| Monday Evening | W 25 - 35 |
| Monday Night | W 35 - 45 |
| Tuesday Morning | W 35 - 45 |
| Tuesday 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 Jan 12, 2020
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