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 relatively stationary low spins off the California coast through the short-term forecast period. Easterly flow continues to bring cold, dry continental air across the Cascades and moderates the air to the west of the Cascade Crest. This pattern should continue with E flow strongest on Sunday night, so expect strong, gusty winds from North Bend to Snoqualmie Pass.
A warm front associated with the stationary low should lift northward across the region late Sunday night through the day on Monday; shearing, and weakening as it does. The front is likely to bring minor amounts of accumulating snow with the highest accumulations forecast for the Mt. Hood and Paradise areas (likely less than 6" of snow).
The spinning low moves southward and separates from the moisture over our region Sunday night, leaving mostly cloudy conditions with decreasing periods of very light snow. Flurries may continue early Monday before ending.
Sunday through Monday, the warm front should transport enough warm air northward to bring above freezing temperatures to some mid-mountain elevations, although easterly flow should keep locations east of the Cascade crest slightly cooler.
Weather Forecast
Hurricane Ridge
| Saturday Night | Mostly clear skies early with increasing high and mid-level clouds. |
| Sunday | Cloudy with increasing chances of light snow in the afternoon. |
Mt. Baker
| Saturday Night | Mostly clear skies early with increasing high and mid-level clouds. |
| Sunday | Cloudy with increasing chances of light snow in the afternoon. |
Washington Pass and Leavenworth
| Saturday Night | Mostly clear skies early with increasing high and mid-level clouds. |
| Sunday | Cloudy with increasing chances of light snow in the afternoon. |
Stevens and Snoqualmie Pass
| Saturday Night | Mostly clear skies early with increasing high and mid-level clouds. Increasing moderate E winds possibly becoming strong after midnight. |
| Sunday | Cloudy with increasing chances of light snow. Up to 3" accumulation. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | High clouds lowering and thickening with light snow possible by morning. |
| Sunday | Light snow. |
Mt. Hood
| Saturday Night | Increasing light snow. |
| Sunday | Light snow decreasing in the afternoon. |
Issued: 2:52 PM PST Saturday, November 30, 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 | Freezing Level * | 3500' | 3000' | 1500' | 1000' | 100' | 2000' | 2000' | 1500' |
| Saturday Night | Snow Level * | 2500' | 1500' | 500' | 0' | 0' | 500' | 500' | 500' |
| Sunday Morning | Snow Level * | 2500' | 1000' | 500' | 0' | 0' | 500' | 500' | 1000' |
| Sunday Afternoon | Snow Level * | 3000' | 1500' | 500' | 500' | 500' | 1000' | 1000' | 1500' |
| Sunday Evening | Snow Level * | 3000' | 2000' | 1000' | 1000' | 1000' | 1500' | 2500' | 2500' |
| Sunday Night | Snow Level * | 3500' | 2500' | 1500' | 1500' | 2500' | 3000' | 4000' | 3000' |
| Monday Morning | Snow Level * | 4000' | 3500' | 3000' | 3000' | 3500' | 4000' | 4500' | 5500' |
| Monday Afternoon | Freezing Level * | 5500' | 4500' | 4000' | 5000' | 5000' | 5500' | 6000' | 7000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 3500' (Easterly Flow *) |
| Saturday Night |
Snow Level 2500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 2500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 3000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 3000' (Easterly Flow *) |
| Sunday Night |
Snow Level 3500' (Easterly Flow *) |
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 3000' (Easterly Flow *) |
| Saturday Night |
Snow Level 1500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 1000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 2000' (Easterly Flow *) |
| Sunday Night |
Snow Level 2500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 1000' (Easterly Flow *) |
| Sunday Night |
Snow Level 1500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 1000' (Easterly Flow *) |
| Sunday Night |
Snow Level 1500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 100' (Easterly Flow *) |
| Saturday Night |
Snow Level 0' (Easterly Flow *) |
| Sunday Morning |
Snow Level 0' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 1000' (Easterly Flow *) |
| Sunday Night |
Snow Level 2500' (Easterly Flow *) |
| Monday Morning |
Snow Level 3500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 2000' (Easterly Flow *) |
| Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 1500' (Easterly Flow *) |
| Sunday Night |
Snow Level 3000' (Easterly Flow *) |
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 2000' (Easterly Flow *) |
| Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Sunday Evening |
Snow Level 2500' (Easterly Flow *) |
| Sunday Night |
Snow Level 4000' (Easterly Flow *) |
| Monday Morning |
Snow Level 4500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Saturday Night |
Snow Level 500' (Easterly Flow *) |
| Sunday Morning |
Snow Level 1000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Sunday Evening |
Snow Level 2500' (Easterly Flow *) |
| Sunday Night |
Snow Level 3000' (Easterly Flow *) |
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 7000' (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 | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0 | LT 0.25 | LT 0.10 | LT 0.10 |
| Washington Pass | 0 | LT 0.10 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | LT 0.10 | 0 | 0 |
| Stevens Pass | 0 | LT 0.10 | LT 0.10 | 0 |
| Snoqualmie Pass | 0 | LT 0.25 | LT 0.10 | 0 |
| Mission Ridge | 0 | LT 0.25 | 0 | 0 |
| Crystal Mt | 0 | LT 0.25 | 0 | 0 |
| Paradise | LT 0.10 | 0.25 | LT 0.10 | 0 |
| White Pass | LT 0.10 | LT 0.25 | 0 | 0 |
| Mt Hood Meadows | 0.25 | 0.25 | 0 | 0 |
| Timberline | 0.25 | 0.25 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.25 |
| Friday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Friday | LT 0.25 |
| Friday Night | 0 |
| Friday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | 0.25 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Friday | LT 0.25 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Friday | 0.25 |
| Friday Night | 0 |
| Friday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Friday | 0.25 |
| Friday Night | 0 |
| Friday | 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: 2:52 PM PST Saturday, November 30, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | ESE 5 - 15 | E 5 - 15 | E 10 - 20 | E 10 - 20 | ESE 15 - 25 |
| Saturday Night | ESE 5 - 15 | E 5 - 15 | E 15 - 25 | E 5 - 15 | ESE 15 - 25 |
| Sunday Morning | ESE 5 - 15 | ESE 5 - 15 | ESE 10 - 20 | ESE 5 - 15 | SE 5 - 15 |
| Sunday Afternoon | S 5 - 15 | ESE 5 - 15 | ESE 5 - 15 | ESE 5 - 15 | SSE 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | ESE 5 - 15 |
| Saturday Night | ESE 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | S 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | E 5 - 15 |
| Saturday Night | E 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | E 10 - 20 |
| Saturday Night | E 15 - 25 |
| Sunday Morning | ESE 10 - 20 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | E 10 - 20 |
| Saturday Night | E 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | ESE 15 - 25 |
| Saturday Night | ESE 15 - 25 |
| Sunday Morning | SE 5 - 15 |
| Sunday Afternoon | SSE 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | ESE 5 - 15 |
| Saturday Night | ESE 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | S 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | E 5 - 15 |
| Saturday Night | E 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | E 10 - 20 |
| Saturday Night | E 15 - 25 |
| Sunday Morning | ESE 10 - 20 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | E 10 - 20 |
| Saturday Night | E 5 - 15 |
| Sunday Morning | ESE 5 - 15 |
| Sunday Afternoon | ESE 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | ESE 15 - 25 |
| Saturday Night | ESE 15 - 25 |
| Sunday Morning | SE 5 - 15 |
| Sunday Afternoon | SSE 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | SSE 10 - 20 | S 5 - 15 | SSE 20 - 30 | SSE 25 - 35 | S 25 - 35 |
| Saturday Night | SSE 15 - 25 | SSE 20 - 30 | S 30 - 40 | SSE 25 - 35 | SSW 20 - 30 |
| Sunday Morning | S 15 - 25 | S 10 - 20 | S 10 - 20 | SSW 15 - 25 | SW 15 - 25 |
| Sunday Afternoon | SW 10 - 20 | WSW 10 - 20 | WSW 20 - 30 | WSW 15 - 25 | SW 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | SSE 10 - 20 |
| Saturday Night | SSE 15 - 25 |
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | SW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | S 5 - 15 |
| Saturday Night | SSE 20 - 30 |
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | SSE 20 - 30 |
| Saturday Night | S 30 - 40 |
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | SSE 25 - 35 |
| Saturday Night | SSE 25 - 35 |
| Sunday Morning | SSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | S 25 - 35 |
| Saturday Night | SSW 20 - 30 |
| Sunday Morning | SW 15 - 25 |
| Sunday Afternoon | SW 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: 2:52 PM PST Saturday, November 30, 2019
Extended Weather Synopsis for Friday night through Friday
Flow turns westerly Monday night as clouds begin to increase ahead of a frontal system approaching the British Columbia coast on Tuesday. The front should spread increasing rain and snow to NW Washington Tuesday night, covering the entire region on Wednesday. The system does not appear particularly strong at this time.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Freezing Level | 4000' - 5000' | 5500' - 6500' | 6500' - 7500' | * |
| Tuesday | Freezing Level | 4000' - 5000' | 5500' - 6500' | 7000' - 8000' | * |
| Tuesday Night | Snow Level | 4000' - 5000' | 5000' - 6000' | 6000' - 7000' | * |
| Wednesday | Snow Level | 3500' - 4500' | 4500' - 5500' | 5500' - 6500' | * |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Freezing Level 4000' - 5000' (Easterly Flow *) |
| Tuesday |
Freezing Level 4000' - 5000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 4000' - 5000' (Easterly Flow *) |
| Wednesday |
Snow Level 3500' - 4500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Freezing Level 5500' - 6500' (Easterly Flow *) |
| Tuesday |
Freezing Level 5500' - 6500' (Easterly Flow *) |
| Tuesday Night |
Snow Level 5000' - 6000' (Easterly Flow *) |
| Wednesday |
Snow Level 4500' - 5500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Freezing Level 6500' - 7500' (Easterly Flow *) |
| Tuesday |
Freezing Level 7000' - 8000' (Easterly Flow *) |
| Tuesday Night |
Snow Level 6000' - 7000' (Easterly Flow *) |
| Wednesday |
Snow Level 5500' - 6500' (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 29, 2019
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