Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Thursday & Tuesday
In the short-term, the region receives some minor and temporary reprieve from the extremely active weather pattern thus far in January. Several warm frontal passages have reduced the chance of lowland snow in most areas as temperatures hover in the 30's and 40's throughout the Puget Sound region, with the exception of northern Watcom County where moderate Fraser River outflow continues to keep temperatures below freezing.
Winds have generally been tapering off as a rapidly weakening low pressure fizzles near the north tip of Vancouver Island Thursday morning. A weakening associated cold frontal boundary lingers just west of the Cascades early Thursday morning should push some light snowfall into the Cascades during the morning hours.
Light snow showers are moving into the region on a SW flow with a trough axis in the nearshore waters, behind the front. These weak, instability snow showers should spread back into the Cascades behind the frontal boundary by the afternoon. The heaviest snow showers should be on the SW slopes of the Olympic mountains. The trough weakens slightly as it moves over the region Thursday night, bringing some cooling, continued light snow showers, and some cooling of the atmosphere and a shift to more W flow.
Light snow showers should decrease Friday morning as the trough shifts east and a warm frontal boundary begins to lift northward ahead of the next system, bringing light snow to the Mt. Hood area late in the day.
Weather Forecast
Hurricane Ridge
| Thursday | Light snow showers. Cool. |
Mt. Baker
| Thursday | Light snow showers. Decreasing moderate winds becoming light at 5000 ft. Cool. |
Washington Pass and Leavenworth
| Thursday | Periods of very light snow or light snow showers. Cold with a weak inversion. |
Stevens and Snoqualmie Pass
| Thursday | A period of light snow in the morning, then a chance of snow showers. Light E winds becoming light westerly during the morning hours. |
Mt. Rainier, Crystal and White Pass
| Thursday | A period of light snow in the morning, then a chance of snow showers. |
Mt. Hood
| Thursday | Light snow in the morning. becoming light snow showers from late morning onwards. |
Issued: 7:09 AM PST Thursday, January 16, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Morning | Snow Level | 1000' | 0' | 0' | 0' | 0' | 0' | 500' | 1500' |
| Thursday Afternoon | Snow Level | 1000' | 1000' | 1000' | 500' | 1000' | 1000' | 1500' | 2000' |
| Thursday Evening | Snow Level | 0' | 0' | 500' | 500' | 500' | 500' | 500' | 1000' |
| Thursday Night | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Friday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Friday Afternoon | Snow Level | 500' | 0' | 0' | 0' | 500' | 500' | 1000' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning |
Snow Level 1000' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 0' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 0' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Washington Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 500' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Leavenworth | Elevation |
|---|---|
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 500' |
| Thursday Evening |
Snow Level 500' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 0' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 500' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 0' |
| Thursday Afternoon |
Snow Level 1000' |
| Thursday Evening |
Snow Level 500' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Morning |
Snow Level 500' |
| Thursday Afternoon |
Snow Level 1500' |
| Thursday Evening |
Snow Level 500' |
| Thursday Night |
Snow Level 0' |
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning |
Snow Level 1500' |
| Thursday Afternoon |
Snow Level 2000' |
| Thursday Evening |
Snow Level 1000' |
| Thursday Night |
Snow Level 500' |
| Friday Morning |
Snow Level 0' |
| Friday 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
| Thursday | Thursday Night | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0.25 | LT 0.25 | LT 0.10 |
| Washington Pass | LT 0.10 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.25 | LT 0.10 | LT 0.10 |
| Mission Ridge | LT 0.10 | 0 | LT 0.10 |
| Crystal Mt | LT 0.10 | 1.00 | LT 0.10 |
| Paradise | 0.25 | LT 0.25 | LT 0.25 |
| White Pass | LT 0.25 | LT 0.10 | LT 0.25 |
| Mt Hood Meadows | 0.25 | LT 0.25 | 0.25 - 0.50 |
| Timberline | 0.25 | LT 0.25 | 0.25 - 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | LT 0.10 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Tuesday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Tuesday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 1.00 |
| Tuesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | LT 0.10 |
| Tuesday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Tuesday | 0.25 - 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Tuesday | 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: 7:09 AM PST Thursday, January 16, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Morning | S 5 - 15 | S 10 - 20 | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 |
| Thursday Afternoon | SW 5 - 15 | S 5 - 15 | W 5 - 15 | W 0 - 10 | W 5 - 15 |
| Thursday Evening | SW 5 - 15 | SW 5 - 15 | WSW 5 - 15 | WSW 0 - 10 | W 15 - 25 |
| Thursday Night | SSW 0 - 10 | WSW 0 - 10 | WSW 5 - 15 | WSW 5 - 15 | WSW 15 - 25 |
| Friday Morning | SSE 0 - 10 | SSE 5 - 15 | SSW 0 - 10 | S 0 - 10 | SSW 15 - 25 |
| Friday Afternoon | SSE 5 - 15 | SE 5 - 15 | SE 5 - 15 | SSW 0 - 10 | SSW 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | SW 5 - 15 |
| Thursday Night | SSW 0 - 10 |
| Friday Morning | SSE 0 - 10 |
| Friday Afternoon | SSE 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning | S 10 - 20 |
| Thursday Afternoon | S 5 - 15 |
| Thursday Evening | SW 5 - 15 |
| Thursday Night | WSW 0 - 10 |
| Friday Morning | SSE 5 - 15 |
| Friday Afternoon | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | SSW 0 - 10 |
| Friday Afternoon | SE 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Thursday Evening | WSW 0 - 10 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | S 0 - 10 |
| Friday Afternoon | SSW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning | W 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 15 - 25 |
| Thursday Night | WSW 15 - 25 |
| Friday Morning | SSW 15 - 25 |
| Friday Afternoon | SSW 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | SW 5 - 15 |
| Thursday Night | SSW 0 - 10 |
| Friday Morning | SSE 0 - 10 |
| Friday Afternoon | SSE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | S 10 - 20 |
| Thursday Afternoon | S 5 - 15 |
| Thursday Evening | SW 5 - 15 |
| Thursday Night | WSW 0 - 10 |
| Friday Morning | SSE 5 - 15 |
| Friday Afternoon | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | SSW 0 - 10 |
| Friday Afternoon | SE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Thursday Evening | WSW 0 - 10 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | S 0 - 10 |
| Friday Afternoon | SSW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | W 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Thursday Evening | W 15 - 25 |
| Thursday Night | WSW 15 - 25 |
| Friday Morning | SSW 15 - 25 |
| Friday Afternoon | SSW 15 - 25 |
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 | |
|---|---|---|---|---|---|
| Thursday Morning | SSW 25 - 35 | SSW 15 - 25 | SW 20 - 30 | SW 15 - 25 | WSW 10 - 20 |
| Thursday Afternoon | SSW 20 - 30 | SW 10 - 20 | SW 15 - 25 | WSW 10 - 20 | WSW 15 - 25 |
| Thursday Evening | SSW 15 - 25 | SW 15 - 25 | WSW 20 - 30 | WSW 15 - 25 | W 30 - 40 |
| Thursday Night | WSW 15 - 25 | W 15 - 25 | W 25 - 35 | W 25 - 35 | W 35 - 45 |
| Friday Morning | WSW 15 - 25 | W 10 - 20 | W 25 - 35 | WSW 20 - 30 | W 35 - 45 |
| Friday Afternoon | SW 15 - 25 | WSW 15 - 25 | WSW 30 - 40 | WSW 30 - 40 | WSW 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | SSW 25 - 35 |
| Thursday Afternoon | SSW 20 - 30 |
| Thursday Evening | SSW 15 - 25 |
| Thursday Night | WSW 15 - 25 |
| Friday Morning | WSW 15 - 25 |
| Friday Afternoon | SW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Morning | SSW 15 - 25 |
| Thursday Afternoon | SW 10 - 20 |
| Thursday Evening | SW 15 - 25 |
| Thursday Night | W 15 - 25 |
| Friday Morning | W 10 - 20 |
| Friday Afternoon | WSW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | SW 20 - 30 |
| Thursday Afternoon | SW 15 - 25 |
| Thursday Evening | WSW 20 - 30 |
| Thursday Night | W 25 - 35 |
| Friday Morning | W 25 - 35 |
| Friday Afternoon | WSW 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | SW 15 - 25 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Evening | WSW 15 - 25 |
| Thursday Night | W 25 - 35 |
| Friday Morning | WSW 20 - 30 |
| Friday Afternoon | WSW 30 - 40 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | WSW 10 - 20 |
| Thursday Afternoon | WSW 15 - 25 |
| Thursday Evening | W 30 - 40 |
| Thursday Night | W 35 - 45 |
| Friday Morning | W 35 - 45 |
| Friday Afternoon | WSW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 15, 2020
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