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 Wednesday
Showers should move into the mountains this evening as a weak storm slides south along the coast. This system appears to fizzle out as precipitation moves onshore limiting any notable accumulations. Look for light rain and snow showers overnight near and west of the Cascade crest. There just isn't enough momentum to carry much, if any, water to areas further east. Weather stations Saturday afternoon already indicate warm air moving into the western and southern portions of the forecast area. Expect temperatures and snow levels to continue to nudge upward overnight. Cool air east of the Cascades should remain in place. Easterly flow will bring cool air into the Passes causing locally lower freezing levels. It looks like Stevens Pass should stay mostly snow, but Snoqualmie and White Pass could see mixed precipitation and rain later Sunday night.
Showers move south Sunday. Any lingering precipitation should focus around Rainier, St Helens, Adams, and Hood. In areas further north and east, look for drier weather with skies gradually breaking. Temperatures should cool slightly as the system exits the region and upper-level winds become more northerly. Dry conditions ought to persist Sunday night and Monday as a high-pressure ridge builds over the area.
Weather Forecast
Hurricane Ridge
| Saturday Night | Rain and snow showers. |
| Sunday | Cloudy. Sun breaks in the afternoon. |
Mt. Baker
| Saturday Night | Rain and snow showers. Warming. |
| Sunday | Cloudy skies becoming partly cloudy. |
Washington Pass and Leavenworth
| Saturday Night | Cloudy. Isolated showers near the Cascade crest. Light winds. |
| Sunday | Skies becoming partly cloudy. Light winds. |
Stevens and Snoqualmie Pass
| Saturday Night | Rain and snow showers. Easterly flow may develop multiple freezing levels. |
| Sunday | Cloudy skies with sun breaks late in the day. East winds increasing. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | Rain and snow showers. |
| Sunday | Isolated showers near the volcanoes. Mostly cloudy skies. |
Mt. Hood
| Saturday Night | Isolated rain and snow showers. |
| Sunday | Rain and snow showers. Winds increasing in the afternoon. |
Issued: 3:59 PM PST Saturday, December 28, 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 * | 5500' | 4000' | 3000' | 2500' | 3500' | 4000' | 4000' | 5000' |
| Saturday Night | Snow Level * | 5500' | 4500' | 3500' | 2500' | 4000' | 4500' | 4500' | 5000' |
| Sunday Morning | Freezing Level * | 6000' | 5000' | 3500' | 2000' | 4000' | 4500' | 5000' | 4500' |
| Sunday Afternoon | Freezing Level * | 6000' | 5000' | 4000' | 2000' | 3000' | 3500' | 5000' | 4000' |
| Sunday Evening | Freezing Level * | 6000' | 3500' | 2500' | 1500' | 2500' | 3000' | 4000' | 4000' |
| Sunday Night | Freezing Level * | 5500' | 3500' | 2000' | 1500' | 2500' | 3000' | 4000' | 4000' |
| Monday Morning | Freezing Level * | 5500' | 3500' | 2500' | 2000' | 3000' | 3000' | 4000' | 4000' |
| Monday Afternoon | Freezing Level * | 5500' | 4500' | 3000' | 2500' | 4500' | 4500' | 5000' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Snow Level 5500' (Easterly Flow *) |
| Saturday Night |
Snow Level 5500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 3500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 3500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 2500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 2000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Snow Level 2500' (Easterly Flow *) |
| Saturday Night |
Snow Level 2500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 2000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 1500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 2500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 3500' (Easterly Flow *) |
| Saturday Night |
Snow Level 4000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 2500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 2500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 3000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 3000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 4000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Snow Level 5000' (Easterly Flow *) |
| Saturday Night |
Snow Level 5000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 4000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 4000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5500' (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
| Saturday Night | Wednesday | Wednesday Night | Wednesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | 0 | 0 | 0 |
| Mt Baker Ski Area | LT 0.10 | 0 | 0 | 0 |
| Washington Pass | LT 0.10 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 0 | 0 | 0 |
| Paradise | LT 0.10 | LT 0.10 | 0 | 0 |
| White Pass | LT 0.10 | 0 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | LT 0.25 | 0 | 0 |
| Timberline | LT 0.10 | LT 0.25 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Wednesday | 0 |
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: 3:59 PM PST Saturday, December 28, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | SSW 5 - 15 | S 5 - 15 | W 5 - 15 | SW 5 - 15 | SW 5 - 15 |
| Saturday Night | SSW 5 - 15 | S 5 - 15 | WSW 5 - 15 | SSW 5 - 15 | W 5 - 15 |
| Sunday Morning | S 5 - 15 | SE 5 - 15 | ESE 5 - 15 | ESE 5 - 15 | S 5 - 15 |
| Sunday Afternoon | S 5 - 15 | ESE 5 - 15 | ESE 5 - 15 | ESE 5 - 15 | E 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | SSW 5 - 15 |
| Saturday Night | SSW 5 - 15 |
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | S 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | S 5 - 15 |
| Saturday Night | S 5 - 15 |
| Sunday Morning | SE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | WSW 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | SW 5 - 15 |
| Saturday Night | SSW 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | SW 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | E 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | SSW 5 - 15 |
| Saturday Night | SSW 5 - 15 |
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | S 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | S 5 - 15 |
| Saturday Night | S 5 - 15 |
| Sunday Morning | SE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | WSW 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | SW 5 - 15 |
| Saturday Night | SSW 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | SW 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | S 5 - 15 |
| Sunday Afternoon | E 10 - 20 |
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 | W 20 - 30 | W 20 - 30 | W 25 - 35 | WNW 20 - 30 | WNW 25 - 35 |
| Saturday Night | W 10 - 20 | W 10 - 20 | NW 15 - 25 | WNW 10 - 20 | W 15 - 25 |
| Sunday Morning | SW 5 - 15 | W 5 - 15 | W 10 - 20 | W 5 - 15 | W 10 - 20 |
| Sunday Afternoon | E 5 - 15 | ESE 5 - 15 | N 5 - 15 | N 5 - 15 | NW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | W 20 - 30 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | SW 5 - 15 |
| Sunday Afternoon | E 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 20 - 30 |
| Saturday Night | W 10 - 20 |
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 25 - 35 |
| Saturday Night | NW 15 - 25 |
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | N 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | WNW 20 - 30 |
| Saturday Night | WNW 10 - 20 |
| Sunday Morning | W 5 - 15 |
| Sunday Afternoon | N 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | WNW 25 - 35 |
| Saturday Night | W 15 - 25 |
| Sunday Morning | W 10 - 20 |
| Sunday Afternoon | NW 5 - 15 |
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: 3:59 PM PST Saturday, December 28, 2019
Extended Weather Synopsis for Wednesday night through Wednesday
There's lots of interest in the long term forecast as weather models show a notable pattern change beginning New Year's Eve. It's too early to speculate about accumulations and timing, but there is general agreement that the storm door opens. Several waves of moisture appear poised to move into the region over the middle and end of next week. Weather models seem to be struggling with battling warm and cold air during the precipitation. Consequently, there is low confidence in these long-range snow levels.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Freezing Level | 3500' - 4500' | 3500' - 5000' | 5000' - 6000' | * |
| Tuesday | Snow Level | 3000' - 4000' | 3000' - 4000' | 4000' - 5500' | |
| Tuesday Night | Snow Level | 3500' - 5000' | 4000' - 5500' | 5500' - 6500' | |
| Wednesday | Snow Level | 3000' - 4000' | 3500' - 5000' | 5000' - 6500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Freezing Level 3500' - 4500' (Easterly Flow *) |
| Tuesday |
Snow Level 3000' - 4000' |
| Tuesday Night |
Snow Level 3500' - 5000' |
| Wednesday |
Snow Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Freezing Level 3500' - 5000' (Easterly Flow *) |
| Tuesday |
Snow Level 3000' - 4000' |
| Tuesday Night |
Snow Level 4000' - 5500' |
| Wednesday |
Snow Level 3500' - 5000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Freezing Level 5000' - 6000' (Easterly Flow *) |
| Tuesday |
Snow Level 4000' - 5500' |
| Tuesday Night |
Snow Level 5500' - 6500' |
| Wednesday |
Snow Level 5000' - 6500' |
* 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 Dec 28, 2019
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