Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Tuesday night through Friday
There are a few key items to take note of in the short term forecast: precipitation near Mt Hood, an eastern Cascade snow event, cold temperatures, and windy conditions. A deep trough over the region and a low-pressure system passing to our south will dominate our short-term weather impacts into Thanksgiving day.
The low-pressure system moving into Oregon will focus precipitation in the Mt Hood area Tuesday night through Wednesday. You could encounter scattered showers in areas of the Washington Cascades and the Olympics Tuesday night. The moisture associated with this system should move east by early Wednesday morning. Easterly winds, combined with available moisture, will create conditions for an upslope snow event in areas east of the Cascade crest. It can be difficult to forecast these eastern Cascade upslope events and the weather models aren't helping much. We're finding quite a bit of variation between models and locations. While the exact amount of precipitation may be uncertain, all the pieces should be in place. You may find quite a bit of variability in the amount of snow from area to area and even slope to slope.
Cold air will continue to pour into the region from the north. This will keep snow levels very low and precipitation should fall as low-density snow. Even though the water amounts appear modest, snow totals could add up quickly with these cold temperatures. The same trough that is pulling in cold air will drive offshore winds. Expect windy conditions even at lower elevations Wednesday night through Thursday. Moderate to strong east winds could make conditions feel extremely cold and produce sub-zero wind chill values.
On Thursday, we expect precipitation and winds to decrease and you should find cold and dry conditions in their place.
Weather Forecast
Hurricane Ridge
| Tuesday Night | Scattered showers. Moderate east winds. Cold |
| Wednesday | Mostly cloudy. Moderate east winds. Cold |
Mt. Baker
| Tuesday Night | High thin clouds. Mostly clear. Moderate east winds. Cold |
| Wednesday | Mostly sunny. Moderate east winds. Cold |
Washington Pass and Leavenworth
| Tuesday Night | Mostly cloudy with snow showers possible especially near the Wenatchee Mountains. Moderate east winds. Cold |
| Wednesday | Cloudy with snow possible. Moderate east winds. Cold. |
Stevens and Snoqualmie Pass
| Tuesday Night | Mostly cloudy. Scattered snow showers. Strong east winds. Cold. |
| Wednesday | Mostly cloudy. Scattered snow showers possible. Strong east winds decreasing in the afternoon. Cold. |
Mt. Rainier, Crystal and White Pass
| Tuesday Night | Mostly cloudy with scattered snow showers possible. Moderate east winds cold. |
| Wednesday | Mostly cloudy with snow showers possible mostly near White Pass. Moderate east winds. Cold. |
Mt. Hood
| Tuesday Night | Snow. Strong east winds. Cold. |
| Wednesday | Snow showers. Strong east winds. Cold. |
Issued: 2:24 PM PST Tuesday, November 26, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Evening | Snow Level * | 1000' | 0' | 0' | 0' | 500' | 500' | 500' | 1000' |
| Tuesday Night | Snow Level * | 500' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Wednesday Morning | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Wednesday Afternoon | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Wednesday Evening | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Wednesday Night | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Thursday Morning | Freezing Level * | 1000' | 500' | 500' | 500' | 500' | 500' | 500' | 1000' |
| Thursday Afternoon | Freezing Level * | 1000' | 500' | 500' | 1000' | 1000' | 1000' | 1000' | 1000' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 500' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 0' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 0' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 0' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 0' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 500' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 0' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 0' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 1000' (Easterly Flow *) |
* 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
| Tuesday Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | LT 0.10 | LT 0.25 | LT 0.10 | 0 |
| Leavenworth | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Snoqualmie Pass | 0 | LT 0.10 | 0 | 0 |
| Mission Ridge | LT 0.25 | LT 0.25 | 0.25 | LT 0.10 |
| Crystal Mt | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Paradise | LT 0.10 | LT 0.10 | 0 | 0 |
| White Pass | LT 0.25 | LT 0.25 | LT 0.10 | 0 |
| Mt Hood Meadows | 0.50 - 0.75 | LT 0.25 | LT 0.10 | LT 0.10 |
| Timberline | 0.50 - 0.75 | LT 0.25 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Friday | LT 0.25 |
| Friday Night | 0.25 |
| Friday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 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: 2:24 PM PST Tuesday, November 26, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | ENE 10 - 20 | E 15 - 25 | E 25 - 35 | E 15 - 25 | E 25 - 35 |
| Tuesday Night | NE 10 - 20 | E 15 - 25 | E 25 - 35 | E 15 - 25 | E 25 - 35 |
| Wednesday Morning | NE 10 - 20 | ENE 15 - 25 | E 20 - 30 | E 15 - 25 | NE 25 - 35 |
| Wednesday Afternoon | NE 5 - 15 | ENE 10 - 20 | E 10 - 20 | E 5 - 15 | NE 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | ENE 10 - 20 |
| Tuesday Night | NE 10 - 20 |
| Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon | NE 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | ENE 15 - 25 |
| Wednesday Afternoon | ENE 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | E 25 - 35 |
| Tuesday Night | E 25 - 35 |
| Wednesday Morning | E 20 - 30 |
| Wednesday Afternoon | E 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | E 15 - 25 |
| Wednesday Afternoon | E 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | E 25 - 35 |
| Tuesday Night | E 25 - 35 |
| Wednesday Morning | NE 25 - 35 |
| Wednesday Afternoon | NE 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | ENE 10 - 20 |
| Tuesday Night | NE 10 - 20 |
| Wednesday Morning | NE 10 - 20 |
| Wednesday Afternoon | NE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | ENE 15 - 25 |
| Wednesday Afternoon | ENE 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | E 25 - 35 |
| Tuesday Night | E 25 - 35 |
| Wednesday Morning | E 20 - 30 |
| Wednesday Afternoon | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | E 15 - 25 |
| Wednesday Afternoon | E 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | E 25 - 35 |
| Tuesday Night | E 25 - 35 |
| Wednesday Morning | NE 25 - 35 |
| Wednesday Afternoon | NE 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 | |
|---|---|---|---|---|---|
| Tuesday Evening | E 30 - 40 | E 30 - 40 | E 35 - 45 | ESE 35 - 45 | ESE 45 - 60 |
| Tuesday Night | E 40 - 55 | E 35 - 45 | E 40 - 55 | E 40 - 55 | E 35 - 45 |
| Wednesday Morning | E 40 - 55 | E 35 - 45 | E 45 - 60 | E 45 - 60 | E 35 - 45 |
| Wednesday Afternoon | E 45 - 60 | E 40 - 55 | E 50 - 65 | E 40 - 55 | E 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | E 30 - 40 |
| Tuesday Night | E 40 - 55 |
| Wednesday Morning | E 40 - 55 |
| Wednesday Afternoon | E 45 - 60 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Evening | E 30 - 40 |
| Tuesday Night | E 35 - 45 |
| Wednesday Morning | E 35 - 45 |
| Wednesday Afternoon | E 40 - 55 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | E 35 - 45 |
| Tuesday Night | E 40 - 55 |
| Wednesday Morning | E 45 - 60 |
| Wednesday Afternoon | E 50 - 65 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | ESE 35 - 45 |
| Tuesday Night | E 40 - 55 |
| Wednesday Morning | E 45 - 60 |
| Wednesday Afternoon | E 40 - 55 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | ESE 45 - 60 |
| Tuesday Night | E 35 - 45 |
| Wednesday Morning | E 35 - 45 |
| Wednesday Afternoon | E 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: 2:24 PM PST Tuesday, November 26, 2019
Extended Weather Synopsis for Friday night through Friday
The cold dry pattern should set-in on Thursday and stay with us into the weekend. A strong high-pressure ridge in the pacific will deflect any approaching weather systems. The models begin to show this ridge breaking down on Saturday into Sunday, but we'll want to wait and see how that pans out.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday Night | Freezing Level | 0' - 1000' | 0' - 1000' | 500' - 1500' | * |
| Friday | Freezing Level | 0' - 1000' | 0' - 1000' | 500' - 1500' | * |
| Friday Night | Freezing Level | 0' - 1000' | 0' - 1000' | 500' - 1500' | * |
| Saturday | Freezing Level | 500' - 1500' | 500' - 1500' | 500' - 1500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Friday |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Friday Night |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Saturday |
Freezing Level 500' - 1500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Friday |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Friday Night |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Saturday |
Freezing Level 500' - 1500' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Friday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Friday Night |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Saturday |
Freezing Level 500' - 1500' |
* 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 Nov 25, 2019
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