Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday night through Friday
An upper low off the Oregon coast will weaken and drift inland tonight. Showers rotating up from the SW will decrease in coverage and intensity overnight with a partial clearing trend expected for the Washington Cascades.
With the jet stream well to our south and the entire Mountain West in one giant upper level trough, we will be left with weak flow aloft and another round of scattered showers partly driven by daytime heating. For areas that do see sunshine in the morning, skies should begin to fill back in as clouds and afternoon showers build.
Showers and clouds will wane Saturday night. High pressure over the interior of British Columbia and lower pressure off the US West coast will draw down a reinforcing shot of cold interior air Saturday night and Sunday. However, Fraser outflow will be much more muted than last week. A few light mountain showers may bubble up Sunday afternoon along with an increase in cumulus clouds.
Weather Forecast
Hurricane Ridge
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight. |
| Saturday | Cloudy with scattered light snow showers in the afternoon. |
Mt. Baker
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight. |
| Saturday | Partly sunny in the morning, becoming mostly cloudy with scattered light snow showers in the afternoon. |
Washington Pass and Leavenworth
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight with a partial clearing trend. |
| Saturday | Partly to mostly sunny in the morning, becoming mostly cloudy with scattered light snow showers in the afternoon. |
Stevens and Snoqualmie Pass
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight with a partial clearing trend. Light and variable wind in the Passes. |
| Saturday | Partly cloudy in the morning, becoming cloudy with scattered light snow showers in the afternoon. Light west wind in the Passes. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight with a partial clearing trend. |
| Saturday | Mostly cloudy in the morning, becoming cloudy with scattered light to occasionally moderate snow showers in the afternoon. |
Mt. Hood
| Friday Night | Mostly cloudy with scattered light rain and snow showers in the evening tapering off after midnight. |
| Saturday | Cloudy with scattered light snow showers, occasionally moderate in the afternoon. |
Issued: 2:36 PM PST Friday, February 15, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Evening | Snow Level | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' |
| Friday Night | Snow Level | 1500' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' |
| Saturday Morning | Snow Level | 1500' | 1500' | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' |
| Saturday Afternoon | Snow Level | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' | 2500' | 2500' |
| Saturday Evening | Snow Level | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' |
| Saturday Night | Snow Level | 500' | 0' | 0' | 0' | 500' | 500' | 500' | 500' |
| Sunday Morning | Snow Level | 500' | 0' | 0' | 0' | 500' | 500' | 500' | 500' |
| Sunday Afternoon | Snow Level | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' | 1500' | 1500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 1000' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 1000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 0' |
| Sunday Morning |
Snow Level 0' |
| Sunday Afternoon |
Snow Level 1000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1000' |
| Saturday Morning |
Snow Level 1000' |
| Saturday Afternoon |
Snow Level 2000' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1000' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Snow Level 2000' |
| Friday Night |
Snow Level 1500' |
| Saturday Morning |
Snow Level 1500' |
| Saturday Afternoon |
Snow Level 2500' |
| Saturday Evening |
Snow Level 1500' |
| Saturday Night |
Snow Level 500' |
| Sunday Morning |
Snow Level 500' |
| Sunday Afternoon |
Snow Level 1500' |
* 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
| Friday Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Washington Pass | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | 0 | LT 0.10 |
| Mission Ridge | 0 | LT 0.10 | LT 0.10 | LT 0.10 |
| Crystal Mt | LT 0.10 | LT 0.25 | LT 0.10 | LT 0.10 |
| Paradise | LT 0.10 | 0.25 | 0 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.25 | LT 0.25 | LT 0.10 | LT 0.10 |
| Timberline | LT 0.25 | 0.25 | LT 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | 0.25 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.25 |
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.25 |
| Friday | 0.25 |
| Friday Night | LT 0.25 |
| Friday | LT 0.10 |
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: 2:36 PM PST Friday, February 15, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | SW 0 - 10 | SW 5 - 15 | WSW 5 - 15 | SW 5 - 15 | S 5 - 15 |
| Friday Night | SW 0 - 10 | SW 0 - 10 | WSW 0 - 10 | W 0 - 10 | WSW 0 - 10 |
| Saturday Morning | SW 0 - 10 | SW 0 - 10 | WSW 0 - 10 | W 0 - 10 | W 5 - 15 |
| Saturday Afternoon | SW 0 - 10 | S 0 - 10 | WSW 5 - 15 | SW 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | SW 0 - 10 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | WSW 5 - 15 |
| Friday Night | WSW 0 - 10 |
| Saturday Morning | WSW 0 - 10 |
| Saturday Afternoon | WSW 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | W 0 - 10 |
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | S 5 - 15 |
| Friday Night | WSW 0 - 10 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | SW 0 - 10 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | SW 0 - 10 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 5 - 15 |
| Friday Night | WSW 0 - 10 |
| Saturday Morning | WSW 0 - 10 |
| Saturday Afternoon | WSW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | W 0 - 10 |
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | S 5 - 15 |
| Friday Night | WSW 0 - 10 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 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 | |
|---|---|---|---|---|---|
| Friday Evening | SW 5 - 15 | W 5 - 15 | WSW 10 - 20 | WSW 10 - 20 | SW 15 - 30 |
| Friday Night | W 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Saturday Morning | W 0 - 10 | W 0 - 10 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Saturday Afternoon | W 0 - 10 | W 0 - 10 | SW 5 - 15 | W 10 - 20 | W 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | SW 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | SW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 5 - 15 |
| Saturday Afternoon | W 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | SW 15 - 30 |
| Friday Night | W 5 - 15 |
| Saturday Morning | W 10 - 20 |
| Saturday Afternoon | W 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.
Issued: 2:36 PM PST Friday, February 15, 2019
Extended Weather Synopsis for Friday night through Friday
Upper level ridging upstream of the Pacific Northwest will quickly slide over the region Sunday night and Monday. Fair, cool and dry weather can be expected. The pattern shifts to a more active one beginning Tuesday. Significant timing differences exist between weather models but light snow should develop at some point on Tuesday as a developing low pressure system races towards us in NW flow aloft.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Freezing Level | 0' - 0' | 0' - 0' | 0' - 0' | |
| Monday | Freezing Level | 0' - 500' | 0' - 500' | 0' - 500' | |
| Monday Night | Freezing Level | 0' - 0' | 0' - 0' | 0' - 0' | |
| Tuesday | Snow Level | 0' - 0' | 0' - 1000' | 1000' - 2000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Freezing Level 0' - 0' |
| Monday |
Freezing Level 0' - 500' |
| Monday Night |
Freezing Level 0' - 0' |
| Tuesday |
Snow Level 0' - 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Freezing Level 0' - 0' |
| Monday |
Freezing Level 0' - 500' |
| Monday Night |
Freezing Level 0' - 0' |
| Tuesday |
Snow Level 0' - 1000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Freezing Level 0' - 0' |
| Monday |
Freezing Level 0' - 500' |
| Monday Night |
Freezing Level 0' - 0' |
| Tuesday |
Snow Level 1000' - 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Feb 15, 2019
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