Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Sunday night through Friday
A cold air mass continues to spill into the Pacific Northwest. Temperatures will be cold enough for mountain snowfall throughout the forecast period, so the question becomes precipitation amounts. A weak disturbance passing across southern British Columbia will enhance snow shower activity Sunday with many areas near and west of the Cascade Crest picking up 1-3" of snowfall; slightly more significant snowfall amounts can be expected in areas of convergence in the Central Washington Cascades, but also the Mt. Hood region.
Snow shower activity begins to taper off through the day on Monday and continues that trend through Monday night. Mt. Hood may be an exception to that rule where stronger winds and orographic enhancement should allow for sustained mountain enhancement.
On Tuesday, a compact, but rapidly developing and powerful storm approaches the Oregon Coast from the NW. During the day Tuesday, winds will shift from W to SE, but snow should maintain over the Mt. Hood region primarily.
Weather Forecast
Hurricane Ridge
| Sunday Night | Light snow showers. |
| Monday | Partly cloudy, then becoming partly sunny. |
Mt. Baker
| Sunday Night | Light snow showers. |
| Monday | Cloudy, with a chance of snow flurries. |
Washington Pass and Leavenworth
| Sunday Night | Snow flurries. |
| Monday | Partly cloudy, with a chance of snow flurries. |
Stevens and Snoqualmie Pass
| Sunday Night | Light to moderate snow showers, with potentially significant enhancement in areas of convergence. 6-12" of snow is possible in some locations, but most locations should see less. Light W wind at pass level. |
| Monday | Light snow showers with some local enhancement in areas of convergence. Light W wind at pass level. |
Mt. Rainier, Crystal and White Pass
| Sunday Night | Light snow showers, locally heavier if convergence drops southward into the Mt Rainier area. |
| Monday | Light snow showers. |
Mt. Hood
| Sunday Night | Light snow showers, locally intense. 2-5" of snow likely. |
| Monday | Light snow showers, locally intense. 2-5" of snow likely. |
Issued: 2:46 PM PST Sunday, November 24, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Evening | Snow Level | 3000' | 3000' | 3000' | 3000' | 3000' | 3000' | 3000' | 3500' |
| Sunday Night | Snow Level | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' | 3000' |
| Monday Morning | Snow Level | 2000' | 1500' | 2000' | 2500' | 2000' | 2000' | 2500' | 2500' |
| Monday Afternoon | Snow Level | 2000' | 1500' | 1500' | 2000' | 2000' | 2000' | 2000' | 2000' |
| Monday Evening | Snow Level | 2000' | 1500' | 1500' | 2000' | 1500' | 1500' | 1500' | 2000' |
| Monday Night | Snow Level | 2000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' | 2000' |
| Tuesday Morning | Snow Level * | 1500' | 500' | 500' | 1000' | 1000' | 1000' | 1000' | 1500' |
| Tuesday Afternoon | Snow Level * | 1000' | 500' | 500' | 500' | 500' | 1000' | 1000' | 1500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 2000' |
| Monday Night |
Snow Level 2000' |
| Tuesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 1500' |
| Monday Evening |
Snow Level 1500' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 1500' |
| Monday Evening |
Snow Level 1500' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 2000' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 1500' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 1500' |
| Monday Night |
Snow Level 1000' |
| Tuesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 1500' |
| Monday Night |
Snow Level 1500' |
| Tuesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening |
Snow Level 3500' |
| Sunday Night |
Snow Level 3000' |
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 2000' |
| Monday Evening |
Snow Level 2000' |
| Monday Night |
Snow Level 2000' |
| Tuesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1500' (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
| Sunday Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | LT 0.10 | 0 | 0 |
| Mt Baker Ski Area | LT 0.25 | LT 0.10 | LT 0.10 | 0 |
| Washington Pass | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0.25 - 0.50 | LT 0.25 | LT 0.10 | 0 |
| Snoqualmie Pass | 0.25 - 0.50 | 0.25 | LT 0.10 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | LT 0.25 | LT 0.25 | LT 0.10 | 0 |
| Paradise | 0.25 - 0.50 | LT 0.25 | LT 0.10 | 0 |
| White Pass | LT 0.25 | LT 0.10 | LT 0.10 | 0 |
| Mt Hood Meadows | 0.25 - 0.50 | 0.25 - 0.50 | 0.25 | 0.25 |
| Timberline | 0.25 - 0.50 | 0.25 - 0.50 | 0.25 | 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.25 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.25 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0.25 - 0.50 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0.25 - 0.50 |
| Friday | 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.25 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | 0.25 - 0.50 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.25 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | 0.25 - 0.50 |
| Friday | 0.25 - 0.50 |
| Friday Night | 0.25 |
| Friday | 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday Night | 0.25 - 0.50 |
| Friday | 0.25 - 0.50 |
| Friday Night | 0.25 |
| Friday | 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: 2:46 PM PST Sunday, November 24, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Evening | W 5 - 15 | SW 5 - 15 | W 10 - 20 | W 10 - 20 | W 20 - 30 |
| Sunday Night | WNW 10 - 20 | WSW 5 - 15 | W 5 - 15 | W 10 - 20 | WNW 15 - 25 |
| Monday Morning | WNW 5 - 15 | WNW 0 - 10 | WNW 5 - 15 | WNW 5 - 15 | W 20 - 30 |
| Monday Afternoon | WNW 5 - 15 | WNW 0 - 10 | WNW 10 - 20 | W 5 - 15 | W 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | WNW 10 - 20 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | WNW 0 - 10 |
| Monday Afternoon | WNW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 5 - 15 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 10 - 20 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening | W 20 - 30 |
| Sunday Night | WNW 15 - 25 |
| Monday Morning | W 20 - 30 |
| Monday Afternoon | W 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | WNW 10 - 20 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | WNW 0 - 10 |
| Monday Afternoon | WNW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 5 - 15 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | WNW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 10 - 20 |
| Monday Morning | WNW 5 - 15 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | W 20 - 30 |
| Sunday Night | WNW 15 - 25 |
| Monday Morning | W 20 - 30 |
| Monday 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 | |
|---|---|---|---|---|---|
| Sunday Evening | W 20 - 30 | WNW 25 - 35 | WNW 30 - 40 | WNW 25 - 35 | WNW 30 - 40 |
| Sunday Night | WNW 10 - 20 | W 15 - 25 | W 20 - 30 | WNW 20 - 30 | WNW 30 - 40 |
| Monday Morning | NW 10 - 20 | NW 10 - 20 | NW 20 - 30 | NW 15 - 25 | NW 30 - 40 |
| Monday Afternoon | NW 10 - 20 | N 10 - 20 | NNW 20 - 30 | NW 20 - 30 | NW 35 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | W 20 - 30 |
| Sunday Night | WNW 10 - 20 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | NW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Evening | WNW 25 - 35 |
| Sunday Night | W 15 - 25 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | N 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | WNW 30 - 40 |
| Sunday Night | W 20 - 30 |
| Monday Morning | NW 20 - 30 |
| Monday Afternoon | NNW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | WNW 25 - 35 |
| Sunday Night | WNW 20 - 30 |
| Monday Morning | NW 15 - 25 |
| Monday Afternoon | NW 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | WNW 30 - 40 |
| Sunday Night | WNW 30 - 40 |
| Monday Morning | NW 30 - 40 |
| Monday Afternoon | NW 35 - 45 |
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: 2:46 PM PST Sunday, November 24, 2019
Extended Weather Synopsis for Friday night through Friday
Tuesday night, the east side of Mt. Hood may expect significant up-slope snowfall, with light amounts on the east slopes of the Washington Cascades as potentially strong E or SE winds rip through the Cascade Crest and mountain gaps. Glancing storm moves southward and away from the region, the moderate to strong E winds should continue, while orographic snowfall diminishes Wednesday and Wednesday night. Turkey day is likely to be mostly sunny, but with moderate to strong E flow through the mountain gaps.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday Night | Snow Level | 500' - 1500' | 500' - 1500' | 1000' - 2000' | * |
| Wednesday | Snow Level | 0' - 1000' | 0' - 1000' | 0' - 1000' | * |
| Wednesday Night | Snow Level | 0' - 1000' | 0' - 1000' | 0' - 1000' | * |
| Thursday | Freezing Level | 0' - 1000' | 0' - 1000' | 5000' - 1500' | * |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Night |
Snow Level 500' - 1500' (Easterly Flow *) |
| Wednesday |
Snow Level 0' - 1000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Thursday |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Night |
Snow Level 500' - 1500' (Easterly Flow *) |
| Wednesday |
Snow Level 0' - 1000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Thursday |
Freezing Level 0' - 1000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Night |
Snow Level 1000' - 2000' (Easterly Flow *) |
| Wednesday |
Snow Level 0' - 1000' (Easterly Flow *) |
| Wednesday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Thursday |
Freezing Level 5000' - 1500' (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 Free Winds 9k I Extended Weather
Previous forecast from Nov 23, 2019
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