Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I I Extended Weather
Weather Synopsis for Tuesday night through Thursday
An exceptionally deep low pressure system positioned well offshore will bring windy conditions and locally heavy snowfall our mountains tonight through Wednesday morning. Warm frontal precipitation will lift from SW to NE tonight over the area. The heaviest precipitation will occur along the east slopes of the Cascades (and Olympics) thanks to some upsloping and closer to the Washington/Oregon border where the axis of heaviest precipitation will be aimed. Portions of the east slopes of the Cascades south of I-90 and near Mt Hood may exceed 1' of snow overnight. Precipitation will be lighter in the Passes and northwest and northcentral Cascades. The cold front will stall along the Olympics and weaken as it washes out during the day. The heaviest showers will linger over the Olympic peninsula with lighter showers elsewhere.
The wind will be the other major story with strong to extreme winds in many areas starting late this afternoon through Wednesday morning. E-SE winds will be the strongest near and west of the Cascade crest with those extreme southeasterlies reaching into the western Cascade foothills. Even for areas that aren't receiving heavy snow, the combination of snow and winds will severely impact visibility.
We'll be inbetween the stronger jet stream over northern CA and the upper low still positioned a bit farther offshore Wednesday night and Thursday. We won't completely dry out but showers and winds will be much lighter. Snow levels will moderate a bit on Thursday as well into the 3000-4000' range.
Weather Forecast
Olympics
| Tuesday Night | Light to moderate rain and snow, heaviest E/SE slopes of the Olympics. Extreme winds. |
| Wednesday | Light to occasionally moderate rain and snow showers, heaviest south slopes of the Olympics. |
West North
| Tuesday Night | Light to occasionally moderate rain and snow developing this evening. Strong winds. |
| Wednesday | Light to occasionally moderate rain and snow becoming scattered rain and snow showers in the afternoon. |
West Central
| Tuesday Night | Light to occasionally moderate rain and snow developing this evening. Strong to extreme winds. |
| Wednesday | Light to occasionally moderate rain and snow becoming scattered rain and snow showers in the afternoon. Strong winds decreasing during the morning. |
West South
| Tuesday Night | Light to moderate rain and snow developing this evening. Strong to extreme winds. |
| Wednesday | Light to occasionally moderate rain and snow becoming scattered rain and snow showers in the afternoon. Strong winds decreasing during the morning. |
Stevens Pass
| Tuesday Night | Light snow developing this evening. Strong to extreme E-SE winds at ridgeline and Pass level. |
| Wednesday | Light snow becoming scattered showers in the afternoon. Strong E-SE ridgeline and Pass level winds decreasing during the morning. |
Snoqualmie Pass
| Tuesday Night | Light snow developing this evening. Strong to extreme E-SE winds at ridgeline and Pass level. |
| Wednesday | Light snow becoming scattered showers in the afternoon. Strong E-SE ridgeline and Pass level winds decreasing during the morning. |
East North
| Tuesday Night | Light to occasionally moderate snow developing later this evening. Strong winds. |
| Wednesday | Light to moderate snow in the morning, becoming light rain and snow showers in the afternoon. Strong winds decreasing in the morning. |
East Central
| Tuesday Night | Light to moderate snow developing later this evening. Strong winds. |
| Wednesday | Light to moderate snow in the morning, becoming light rain and snow showers in the afternoon. Strong winds decreasing in the morning. |
East South
| Tuesday Night | Moderate snow developing later this evening. Strong winds. |
| Wednesday | Light to moderate snow in the morning, becoming light rain and snow showers in the afternoon. Strong winds decreasing in the morning. |
Mt. Hood
| Tuesday Night | Moderate rain and snow developing later this evening. Strong to extreme winds. |
| Wednesday | Moderate rain and snow in the morning, becoming light to occasionally moderate snow showers in the afternoon. Strong winds decreasing in the morning. |
Issued: 2:01 PM PST Tuesday, November 19, 2024
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* | None' | None' | None' | None' | 1000' | 1500' | None' | 3000' |
| Tuesday Night | Snow Level* | None' | None' | None' | None' | 1000' | 1000' | None' | 3500' |
| Wednesday Morning | Snow Level* | None' | None' | None' | None' | 1000' | 1500' | None' | 4000' |
| Wednesday Afternoon | Snow Level* | None' | None' | None' | None' | 3000' | 3000' | None' | 4500' |
| Wednesday Evening | Snow Level* | None' | None' | None' | None' | 2500' | 2500' | None' | 4000' |
| Wednesday Night | Snow Level* | None' | None' | None' | None' | 1500' | 2000' | None' | 4000' |
| Thursday Morning | Snow Level* | None' | None' | None' | None' | 2500' | 2500' | None' | 4000' |
| Thursday Afternoon | Snow Level* | None' | None' | None' | None' | 3500' | 3500' | None' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' (Easterly Flow *) |
| Tuesday Night |
Snow Level None' (Easterly Flow *) |
| Wednesday Morning |
Snow Level None' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level None' (Easterly Flow *) |
| Wednesday Evening |
Snow Level None' (Easterly Flow *) |
| Wednesday Night |
Snow Level None' (Easterly Flow *) |
| Thursday Morning |
Snow Level None' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level None' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' (Easterly Flow *) |
| Tuesday Night |
Snow Level None' (Easterly Flow *) |
| Wednesday Morning |
Snow Level None' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level None' (Easterly Flow *) |
| Wednesday Evening |
Snow Level None' (Easterly Flow *) |
| Wednesday Night |
Snow Level None' (Easterly Flow *) |
| Thursday Morning |
Snow Level None' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level None' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' (Easterly Flow *) |
| Tuesday Night |
Snow Level None' (Easterly Flow *) |
| Wednesday Morning |
Snow Level None' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level None' (Easterly Flow *) |
| Wednesday Evening |
Snow Level None' (Easterly Flow *) |
| Wednesday Night |
Snow Level None' (Easterly Flow *) |
| Thursday Morning |
Snow Level None' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level None' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' (Easterly Flow *) |
| Tuesday Night |
Snow Level None' (Easterly Flow *) |
| Wednesday Morning |
Snow Level None' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level None' (Easterly Flow *) |
| Wednesday Evening |
Snow Level None' (Easterly Flow *) |
| Wednesday Night |
Snow Level None' (Easterly Flow *) |
| Thursday Morning |
Snow Level None' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level None' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 2500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 1500' (Easterly Flow *) |
| Thursday Morning |
Snow Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 2500' (Easterly Flow *) |
| Wednesday Night |
Snow Level 2000' (Easterly Flow *) |
| Thursday Morning |
Snow Level 2500' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' (Easterly Flow *) |
| Tuesday Night |
Snow Level None' (Easterly Flow *) |
| Wednesday Morning |
Snow Level None' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level None' (Easterly Flow *) |
| Wednesday Evening |
Snow Level None' (Easterly Flow *) |
| Wednesday Night |
Snow Level None' (Easterly Flow *) |
| Thursday Morning |
Snow Level None' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level None' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 3000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 3500' (Easterly Flow *) |
| Wednesday Morning |
Snow Level 4000' (Easterly Flow *) |
| Wednesday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Wednesday Evening |
Snow Level 4000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 4000' (Easterly Flow *) |
| Thursday Morning |
Snow Level 4000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' (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 | Wednesday | Wednesday Night | Thursday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.25 - 0.50 | 0.50 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0.50 | 0.25 - 0.50 | 0.25 | LT 0.10 |
| Mt. Loop - Barlow Pass | 0.25 | LT 0.25 | LT 0.25 | LT 0.10 |
| Stevens Pass | 0.25 | LT 0.25 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | 0.25 | LT 0.25 | LT 0.10 | LT 0.10 |
| Crystal Mt | 0.50 - 0.75 | 0.25 | LT 0.10 | LT 0.10 |
| Paradise | 0.50 - 0.75 | 0.25 - 0.50 | LT 0.25 | LT 0.10 |
| White Pass | 0.50 - 0.75 | LT 0.25 | LT 0.10 | LT 0.10 |
| Washington Pass | 0.50 | LT 0.25 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0.50 - 0.75 | 0.25 | LT 0.10 | LT 0.10 |
| Salmon la Sac - Gallagher Head | 0.75 | 0.25 | LT 0.25 | LT 0.10 |
| Tieton River - Darland Mt. | 1.00 - 1.50 | 0.25 | LT 0.10 | LT 0.25 |
| Mt Hood Meadows | 1.00 - 1.50 | 0.25 - 0.50 | LT 0.25 | LT 0.25 |
| Timberline | 1.00 - 1.50 | 0.25 | LT 0.25 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 - 0.50 |
| Wednesday | 0.50 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | 0.25 |
| Thursday | LT 0.10 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.75 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Thursday | 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: 2:01 PM PST Tuesday, November 19, 2024
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | --- None - None | --- None - None | --- None - None | --- None - None | SSE None - None |
| Tuesday Night | --- None - None | --- None - None | --- None - None | --- None - None | S None - None |
| Wednesday Morning | --- None - None | --- None - None | --- None - None | --- None - None | SSW None - None |
| Wednesday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | SSW None - None |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | SSE None - None |
| Tuesday Night | S None - None |
| Wednesday Morning | SSW None - None |
| Wednesday Afternoon | SSW None - None |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | SSE None - None |
| Tuesday Night | S None - None |
| Wednesday Morning | SSW None - None |
| Wednesday Afternoon | SSW None - None |
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: 2:01 PM PST Tuesday, November 19, 2024
Extended Weather Synopsis for Thursday night through Saturday
Another frontal system will approach form the south Thursday night and Friday. This system could be messing with a warming trend leading to mixed precipitation types (freezing rain) for the Passes and the central/south WA Cascades, or it could just be a milder storm with snow levels pushing above 5-7000'. A more low key and light showery pattern looks likely for Saturday with snow levels pegged between 3000-4000'.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday Night | Snow Level | None' - None' | None' - None' | None' - None' | * |
| Friday | Snow Level | None' - None' | None' - None' | None' - None' | * |
| Friday Night | Snow Level | None' - None' | None' - None' | None' - None' | * |
| Saturday | Snow Level | None' - None' | None' - None' | None' - None' | * |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' (Easterly Flow *) |
| Friday |
Snow Level None' - None' (Easterly Flow *) |
| Friday Night |
Snow Level None' - None' (Easterly Flow *) |
| Saturday |
Snow Level None' - None' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' (Easterly Flow *) |
| Friday |
Snow Level None' - None' (Easterly Flow *) |
| Friday Night |
Snow Level None' - None' (Easterly Flow *) |
| Saturday |
Snow Level None' - None' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' (Easterly Flow *) |
| Friday |
Snow Level None' - None' (Easterly Flow *) |
| Friday Night |
Snow Level None' - None' (Easterly Flow *) |
| Saturday |
Snow Level None' - None' (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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I I Extended Weather
Previous forecast from Nov. 18, 2024
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