Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Saturday night through Friday
A broad trough in the NE Pacific is steering a strong jetstream toward the Pacific Northwest, bringing active weather to our region and leaving us with chilly temperatures through early next week.
Saturday night, a frontal system moves in from the NW, bringing a round of pre-frontal rain and high elevation snow as it crosses the region from NW to SE, with WSW winds potentially stong on ridgetops and locations east of the Cascade Crest. The front initiates a cooling trend as a cool NW flow aloft keeps snow levels lowering into early next week.
Sunday, the majority of the rain and snow will shift south across Oregon with light post-frontal rain and snow showers decreasing across Washington.
Weather models generally agree that light snow showers should increase Sunday night as a trough digs southward across the region. The cold, unstable trough should bring further significant cooling through Monday, with snow showers and convergence activity (locally intense) focused on central/southern Washington and NW Oregon.
Weather Forecast
Hurricane Ridge
| Saturday Night | Mostly cloudy with a chance of rain with snow at the highest elevations. Cooling. Winds gusting strong. |
| Sunday | Cooler with light rain and snow showers. |
Mt. Baker
| Saturday Night | Light to moderate rain and snow developing with enhancement in areas favored by westerly flow. Snow level starting high and dropping to Mt. Baker base by morning. Strong winds. |
| Sunday | Cooler and cloudy with light rain and snow showers. |
Washington Pass and Leavenworth
| Saturday Night | Increasing light rain and high elevation snow with snow levels lowering. Strong or gusty winds. |
| Sunday | Cooler and cloudy with decreasing light rain and snow. |
Stevens and Snoqualmie Pass
| Saturday Night | Cloudy in the evening with light rain increasing to moderate after midnight. Cooling trend after midnight. Increasing light to moderate W wind through the Passes. Winds gusting strong at 5000 ft. |
| Sunday | Cooler and cloudy with decreasing light rain and snow, primarily in the morning. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | Cloudy in the evening with light rain and high elevation light snow increasing to moderate after midnight. Mild with a cooling trend after midnight. Winds gusting strong. |
| Sunday | Cooler and cloudy with decreasing light rain and snow, primarily in the morning. |
Mt. Hood
| Saturday Night | High clouds lowering and thickening. Mild. |
| Sunday | Rapidly cooling with light to moderate rain and snow. |
Issued: 3:06 PM PST Saturday, November 23, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Evening | Snow Level | 7000' | 5000' | 5000' | 6500' | 5500' | 6500' | 8000' | 10000' |
| Saturday Night | Snow Level | 5500' | 4500' | 4500' | 6000' | 5000' | 5500' | 6000' | 8000' |
| Sunday Morning | Snow Level | 4000' | 3000' | 3500' | 4500' | 3500' | 4000' | 4500' | 5500' |
| Sunday Afternoon | Snow Level | 3500' | 3000' | 3000' | 3500' | 3500' | 3000' | 3500' | 4000' |
| Sunday Evening | Snow Level | 3000' | 2500' | 2500' | 3000' | 2500' | 3000' | 3000' | 3500' |
| Sunday Night | Snow Level | 2500' | 2000' | 2000' | 2000' | 2000' | 2000' | 2500' | 3000' |
| Monday Morning | Snow Level | 2000' | 1000' | 1500' | 1500' | 1500' | 1500' | 1500' | 2000' |
| Monday Afternoon | Snow Level | 2000' | 1500' | 1500' | 2000' | 1500' | 1500' | 2000' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Snow Level 7000' |
| Saturday Night |
Snow Level 5500' |
| Sunday Morning |
Snow Level 4000' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2000' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Snow Level 5000' |
| Saturday Night |
Snow Level 4500' |
| Sunday Morning |
Snow Level 3000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1500' |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 5000' |
| Saturday Night |
Snow Level 4500' |
| Sunday Morning |
Snow Level 3500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 1500' |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Snow Level 6500' |
| Saturday Night |
Snow Level 6000' |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 2000' |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 5500' |
| Saturday Night |
Snow Level 5000' |
| Sunday Morning |
Snow Level 3500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 1500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 6500' |
| Saturday Night |
Snow Level 5500' |
| Sunday Morning |
Snow Level 4000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 1500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Snow Level 8000' |
| Saturday Night |
Snow Level 6000' |
| Sunday Morning |
Snow Level 4500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 2000' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Snow Level 10000' |
| Saturday Night |
Snow Level 8000' |
| Sunday Morning |
Snow Level 5500' |
| Sunday Afternoon |
Snow Level 4000' |
| Sunday Evening |
Snow Level 3500' |
| Sunday Night |
Snow Level 3000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2000' |
* 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
| Saturday 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 0.25 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0.50 - 0.75 | LT 0.10 | 0.25 | LT 0.10 |
| Washington Pass | 0.25 - 0.50 | LT 0.10 | LT 0.25 | LT 0.10 |
| Leavenworth | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Stevens Pass | 0.50 | 0.25 | 0.25 - 0.50 | LT 0.10 |
| Snoqualmie Pass | 0.50 - 0.75 | 0.25 | 0.25 - 0.50 | LT 0.25 |
| Mission Ridge | LT 0.10 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | LT 0.25 | LT 0.25 | LT 0.25 |
| Paradise | 0.75 | LT 0.25 | 0.50 | 0.25 |
| White Pass | 0.25 | LT 0.25 | LT 0.25 | LT 0.25 |
| Mt Hood Meadows | LT 0.10 | 0.50 - 0.75 | 0.25 - 0.50 | 0.25 |
| Timberline | LT 0.10 | 0.50 | 0.50 | 0.25 - 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Friday | LT 0.25 |
| Friday Night | LT 0.25 |
| Friday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | 0.50 - 0.75 |
| Friday | LT 0.10 |
| Friday Night | 0.25 |
| Friday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 - 0.50 |
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.50 |
| Friday | 0.25 |
| Friday Night | 0.25 - 0.50 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.50 - 0.75 |
| Friday | 0.25 |
| Friday Night | 0.25 - 0.50 |
| Friday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | LT 0.25 |
| Friday Night | LT 0.25 |
| Friday | LT 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | 0.75 |
| Friday | LT 0.25 |
| Friday Night | 0.50 |
| Friday | 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Friday | LT 0.25 |
| Friday Night | LT 0.25 |
| Friday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | 0.50 - 0.75 |
| Friday Night | 0.25 - 0.50 |
| Friday | 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | 0.50 |
| Friday Night | 0.50 |
| Friday | 0.25 - 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: 3:06 PM PST Saturday, November 23, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | WSW 20 - 30 | SSW 30 - 40 | WSW 20 - 30 | WSW 10 - 20 | W 20 - 30 |
| Saturday Night | W 15 - 25 | WSW 20 - 30 | W 20 - 30 | W 20 - 30 | W 30 - 40 |
| Sunday Morning | WNW 15 - 25 | WSW 10 - 20 | W 20 - 30 | W 15 - 25 | W 25 - 35 |
| Sunday Afternoon | W 15 - 25 | WSW 5 - 15 | W 15 - 25 | W 10 - 20 | W 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | W 15 - 25 |
| Sunday Morning | WNW 15 - 25 |
| Sunday Afternoon | W 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | SSW 30 - 40 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | W 20 - 30 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | WSW 10 - 20 |
| Saturday Night | W 20 - 30 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | W 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | W 20 - 30 |
| Saturday Night | W 30 - 40 |
| Sunday Morning | W 25 - 35 |
| Sunday Afternoon | W 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | W 15 - 25 |
| Sunday Morning | WNW 15 - 25 |
| Sunday Afternoon | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | SSW 30 - 40 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | W 20 - 30 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | WSW 10 - 20 |
| Saturday Night | W 20 - 30 |
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | W 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | W 20 - 30 |
| Saturday Night | W 30 - 40 |
| Sunday Morning | W 25 - 35 |
| Sunday 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 | |
|---|---|---|---|---|---|
| Saturday Evening | WSW 45 - 65 | WSW 45 - 65 | W 40 - 55 | W 30 - 40 | W 30 - 40 |
| Saturday Night | WSW 50 - 70 | WSW 50 - 70 | WSW 50 - 70 | W 45 - 65 | W 40 - 55 |
| Sunday Morning | WNW 30 - 40 | WNW 35 - 45 | WNW 40 - 50 | WNW 30 - 40 | W 45 - 55 |
| Sunday Afternoon | WNW 25 - 35 | NW 30 - 40 | WNW 35 - 45 | WNW 30 - 40 | WNW 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | WSW 45 - 65 |
| Saturday Night | WSW 50 - 70 |
| Sunday Morning | WNW 30 - 40 |
| Sunday Afternoon | WNW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | WSW 45 - 65 |
| Saturday Night | WSW 50 - 70 |
| Sunday Morning | WNW 35 - 45 |
| Sunday Afternoon | NW 30 - 40 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 40 - 55 |
| Saturday Night | WSW 50 - 70 |
| Sunday Morning | WNW 40 - 50 |
| Sunday Afternoon | WNW 35 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | W 30 - 40 |
| Saturday Night | W 45 - 65 |
| Sunday Morning | WNW 30 - 40 |
| Sunday Afternoon | WNW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | W 30 - 40 |
| Saturday Night | W 40 - 55 |
| Sunday Morning | W 45 - 55 |
| Sunday Afternoon | WNW 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.
Issued: 3:06 PM PST Saturday, November 23, 2019
Extended Weather Synopsis for Friday night through Friday
A pronounced trough will remain over the region with the air mass gradually stabilizing through the early part of the week. This pattern will bring a decreasing chance of snow showers as a compact low moves toward northern California and tries to spin some moisture northward. With cold air in place, snow levels well below Pass level. Easterly flow may become strong by Tuesday night and Wednesday in some areas.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Snow Level | 0' - 1000' | 500' - 1500' | 1000' - 2000' | |
| Tuesday | Snow Level | 0' - 1000' | 500' - 1500' | 500' - 1500' | * |
| Tuesday Night | Snow Level | 0' - 1000' | 0' - 1000' | 500' - 1500' | * |
| Wednesday | Freezing Level | 500' - 1500' | 1000' - 2000' | 1000' - 2000' | * |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Snow Level 0' - 1000' |
| Tuesday |
Snow Level 0' - 1000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Wednesday |
Freezing Level 500' - 1500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Snow Level 500' - 1500' |
| Tuesday |
Snow Level 500' - 1500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 0' - 1000' (Easterly Flow *) |
| Wednesday |
Freezing Level 1000' - 2000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Snow Level 1000' - 2000' |
| Tuesday |
Snow Level 500' - 1500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 500' - 1500' (Easterly Flow *) |
| Wednesday |
Freezing Level 1000' - 2000' (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 22, 2019
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