Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday night through Saturday
After a mostly clear night, an upper level low located to our south will shift inland and begin to push some high clouds and moisture into Washington State late tonight. Closer to the upper low, Mt. Hood will see the most cloud cover and the best chance for light showers through Thursday. Weakening offshore gradients will allow easterly winds to relax. With the clouds/moisture rotating up in SE flow on Thursday, more sun than cloud is expected from about Stevens Pass to the Canadian border although afternoon cumulus is possible in these areas. Temperatures will still be quite mild but freezing levels will be a notch lower than Wednesday.
After an uneventful and partly to most cloudy Thursday night, a weak negativily tilted upper level trough and assoicated frontal band will approach the Pacific coast on Friday. This should spread light showers into the Olympics during the afternoon. It is less clear if showers will pop up over the Cascades with marginally unstable atmospheric conditions are paired with daytime heating. Freezing levels will remain mild through Friday.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Mostly clear and mild. Increasing high clouds late. |
| Thursday | Partly sunny becoming mostly cloudy in the afternoon. Mild. |
Mt. Baker
| Wednesday Night | Mostly clear and mild. |
| Thursday | Mostly sunny with periods of high clouds. Warm. |
Washington Pass and Leavenworth
| Wednesday Night | Mostly clear and mild. |
| Thursday | Mostly sunny with periods of high clouds. Warm. |
Stevens and Snoqualmie Pass
| Wednesday Night | Mostly clear and mild. Increasing high clouds late. Moderate east winds at Pass level and ridgetop in the evening decreasing overnight. |
| Thursday | Mostly sunny becoming partly sunny in the afternoon with increasing high clouds. Light west wind in the Passes. Warm. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Mostly clear, becoming mostly cloudy with increasing high clouds. Mild. Moderate east ridgetop winds decreasing overnight. |
| Thursday | Partly sunny becoming mostly cloudy in the afternoon with increasing mid and high clouds. Warm. |
Mt. Hood
| Wednesday Night | High overcast. Mild. Moderate east winds decreasing overnight. |
| Thursday | Cloudy with a slight chance of a rain or snow shower. Mild. |
Issued: 2:23 PM PDT Wednesday, March 20, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Evening | Freezing Level * | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' |
| Wednesday Night | Freezing Level | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' | 8500' |
| Thursday Morning | Freezing Level | 7500' | 8000' | 8500' | 8500' | 8000' | 8000' | 8000' | 8000' |
| Thursday Afternoon | Freezing Level | 7500' | 8000' | 8500' | 8500' | 8000' | 8000' | 8000' | 8000' |
| Thursday Evening | Freezing Level | 7000' | 8000' | 8500' | 8500' | 8000' | 8000' | 7500' | 7000' |
| Thursday Night | Freezing Level | 7000' | 8000' | 8500' | 8500' | 8000' | 8000' | 7500' | 7000' |
| Friday Morning | Freezing Level | 7000' | 8000' | 8500' | 8500' | 8000' | 8000' | 7500' | 7000' |
| Friday Afternoon | Snow Level | 5000' | 6500' | 6500' | 6500' | 6500' | 6500' | 6000' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 7500' |
| Thursday Afternoon |
Freezing Level 7500' |
| Thursday Evening |
Freezing Level 7000' |
| Thursday Night |
Freezing Level 7000' |
| Friday Morning |
Freezing Level 7000' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Thursday Evening |
Freezing Level 8000' |
| Thursday Night |
Freezing Level 8000' |
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8500' |
| Thursday Afternoon |
Freezing Level 8500' |
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 8500' |
| Friday Morning |
Freezing Level 8500' |
| Friday Afternoon |
Snow Level 6500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8500' |
| Thursday Afternoon |
Freezing Level 8500' |
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 8500' |
| Friday Morning |
Freezing Level 8500' |
| Friday Afternoon |
Snow Level 6500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Thursday Evening |
Freezing Level 8000' |
| Thursday Night |
Freezing Level 8000' |
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Thursday Evening |
Freezing Level 8000' |
| Thursday Night |
Freezing Level 8000' |
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Thursday Evening |
Freezing Level 7500' |
| Thursday Night |
Freezing Level 7500' |
| Friday Morning |
Freezing Level 7500' |
| Friday Afternoon |
Snow Level 6000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Thursday Evening |
Freezing Level 7000' |
| Thursday Night |
Freezing Level 7000' |
| Friday Morning |
Freezing Level 7000' |
| Friday Afternoon |
Snow Level 5500' |
* 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
| Wednesday Night | Saturday | Saturday Night | Saturday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | 0 | LT 0.10 |
| Washington Pass | 0 | 0 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | 0 | 0 | 0 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | 0 | LT 0.10 |
| Mission Ridge | 0 | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 | LT 0.10 |
| Mt Hood Meadows | 0 | LT 0.10 | 0 | LT 0.10 |
| Timberline | 0 | LT 0.10 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | LT 0.10 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | LT 0.10 |
| Saturday Night | 0 |
| Saturday | 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: 2:23 PM PDT Wednesday, March 20, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | SE 10 - 20 | E 0 - 10 | E 15 - 25 | E 10 - 20 | E 10 - 20 |
| Wednesday Night | S 0 - 10 | VAR 0 - 10 | E 0 - 10 | VAR 0 - 10 | NE 5 - 15 |
| Thursday Morning | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | NE 0 - 10 |
| Thursday Afternoon | S 0 - 10 | SW 0 - 10 | W 0 - 10 | W 0 - 10 | W 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | SE 10 - 20 |
| Wednesday Night | S 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | E 15 - 25 |
| Wednesday Night | E 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | NE 5 - 15 |
| Thursday Morning | NE 0 - 10 |
| Thursday Afternoon | W 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | SE 10 - 20 |
| Wednesday Night | S 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | E 15 - 25 |
| Wednesday Night | E 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | VAR 0 - 10 |
| Thursday Morning | VAR 0 - 10 |
| Thursday Afternoon | W 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | E 10 - 20 |
| Wednesday Night | NE 5 - 15 |
| Thursday Morning | NE 0 - 10 |
| Thursday Afternoon | W 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 | |
|---|---|---|---|---|---|
| Wednesday Evening | SE 10 - 20 | SE 15 - 25 | SE 15 - 30 | SE 15 - 30 | SE 15 - 30 |
| Wednesday Night | S 5 - 15 | S 10 - 20 | SE 10 - 20 | SE 10 - 20 | SE 10 - 20 |
| Thursday Morning | S 0 - 10 | S 0 - 10 | ESE 10 - 20 | E 10 - 20 | ESE 15 - 25 |
| Thursday Afternoon | S 0 - 10 | S 0 - 10 | SE 10 - 20 | SE 10 - 20 | SE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | SE 10 - 20 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SE 15 - 25 |
| Wednesday Night | S 10 - 20 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SE 15 - 30 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | ESE 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | SE 15 - 30 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | E 10 - 20 |
| Thursday Afternoon | SE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | SE 15 - 30 |
| Wednesday Night | SE 10 - 20 |
| Thursday Morning | ESE 15 - 25 |
| Thursday Afternoon | SE 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.
Issued: 2:23 PM PDT Wednesday, March 20, 2019
Extended Weather Synopsis for Saturday night through Saturday
The frontal boundary will lift through Friday night with isolated to scattered showers continuing on Saturday. Showers are not expected to be significant, with generally light amounts forecast mainly for the Olympics and west slopes of the Cascades. However, this front should usher in relatively cooler air, with freezing levels dropping to their lowest levels in over a week. Weak upper level ridging should return on Sunday leading to a mostly dry day.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Snow Level | 4000' - 5000' | 3500' - 4500' | 3500' - 4500' | |
| Saturday | Snow Level | 3500' - 4500' | 3500' - 4500' | 3500' - 4500' | |
| Saturday Night | Snow Level | 3000' - 4000' | 3000' - 4000' | 3000' - 4000' | |
| Sunday | Freezing Level | 4500' - 5500' | 5000' - 6000' | 5000' - 6000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Snow Level 4000' - 5000' |
| Saturday |
Snow Level 3500' - 4500' |
| Saturday Night |
Snow Level 3000' - 4000' |
| Sunday |
Freezing Level 4500' - 5500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Snow Level 3500' - 4500' |
| Saturday |
Snow Level 3500' - 4500' |
| Saturday Night |
Snow Level 3000' - 4000' |
| Sunday |
Freezing Level 5000' - 6000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Snow Level 3500' - 4500' |
| Saturday |
Snow Level 3500' - 4500' |
| Saturday Night |
Snow Level 3000' - 4000' |
| Sunday |
Freezing Level 5000' - 6000' |
* 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 Mar 20, 2019
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