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
Scattered showers leftover from a front that moved through the Cascades mid-day will diminish quickly overnight with the exception of the Mt. Baker area where showers will hang on through at least midnight. A weak shortwave trough off the Oregon/California coast will rotate up a few bands of light precipitation for the Mt. Hood area and perhaps the south Washington Cascades Thursday afternoon. Some filtered sunshine through high clouds is expected further north with sunnier conditions expected for much of the day over the north Cascades. Post-frontal cooling that occurs Wednesday night will be short lived; freezing levels will quickly bounce back to about 7000' Thursday afternoon.
After the weak upper level trough passes through Thursday night with generally light precipitation expected, a deep upper level low in the NE Pacific and a strong westerly jet will begin to send a series of Pacific frontal systems into the Pacific Northwest beginning late Thursday night. The system that arrives on Friday will do so in southerly flow, spreading light to moderate amount of precipitation along with windy conditions to both sides of the Cascades with snow levels around 5000'.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Mostly cloudy with isolated rain and snow showers in the evening then becoming partly cloudy. |
| Thursday | Partly sunny in the morning becoming mostly cloudy in the afternoon. |
Mt. Baker
| Wednesday Night | Light to occasionally moderate showers in the evening decreasing and becoming mostly cloudy with scattered light rain and snow showers. |
| Thursday | Mostly sunny in the morning becoming partly sunny with filtered sunshine and high clouds in the afternoon. |
Washington Pass and Leavenworth
| Wednesday Night | Mostly cloudy with isolated rain and snow showers near the Cascade crest in the evening then becoming partly cloudy. |
| Thursday | Mostly sunny in the morning becoming partly sunny with filtered sunshine and high clouds in the afternoon. |
Stevens and Snoqualmie Pass
| Wednesday Night | Mostly cloudy with isolated rain and snow showers in the evening then becoming partly cloudy. Moderate west wind at Pass level becoming light after midnight. |
| Thursday | Partly sunny in the morning becoming mostly cloudy with filtered sunshine and increasing high clouds in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Partly cloudy with a slight chance of rain and snow showers in the evening then becoming partly cloudy with periods of high clouds. |
| Thursday | Mostly cloudy with a few sunbreaks in the morning becoming cloudy in the afternoon. Slight chance of light rain or snow late afternoon. |
Mt. Hood
| Wednesday Night | Mostly cloudy with a slight chance of rain and snow showers in the evening then becoming cloudy. |
| Thursday | Cloudy. Periods of light rain and snow in the afternoon. |
Issued: 2:26 PM PDT Wednesday, April 3, 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 | Snow Level | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' | 5000' |
| Wednesday Night | Freezing Level | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 5500' |
| Thursday Morning | Freezing Level | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' | 4500' | 6000' |
| Thursday Afternoon | Freezing Level | 6500' | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 6500' |
| Thursday Evening | Snow Level | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' |
| Thursday Night | Snow Level | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' |
| Friday Morning | Snow Level | 5000' | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' |
| Friday Afternoon | Snow Level | 4500' | 5000' | 5500' | 5500' | 5000' | 5000' | 5000' | 5000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 6500' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5000' |
| Friday Afternoon |
Snow Level 4500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 4500' |
| Wednesday Night |
Freezing Level 4000' |
| Thursday Morning |
Freezing Level 4500' |
| Thursday Afternoon |
Freezing Level 7000' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Snow Level 5000' |
| Wednesday Night |
Freezing Level 5500' |
| Thursday Morning |
Freezing Level 6000' |
| Thursday Afternoon |
Freezing Level 6500' |
| Thursday Evening |
Snow Level 6000' |
| Thursday Night |
Snow Level 5500' |
| Friday Morning |
Snow Level 5500' |
| Friday Afternoon |
Snow Level 5000' |
* 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 | LT 0.25 | 0.25 |
| Mt Baker Ski Area | LT 0.25 | 0 | LT 0.25 | 0.50 - 0.75 |
| Washington Pass | LT 0.10 | 0 | LT 0.10 | LT 0.25 |
| Leavenworth | 0 | 0 | LT 0.10 | LT 0.25 |
| Stevens Pass | LT 0.10 | 0 | LT 0.10 | 0.25 |
| Snoqualmie Pass | LT 0.10 | 0 | LT 0.25 | 0.25 |
| Mission Ridge | 0 | 0 | LT 0.10 | 0.25 |
| Crystal Mt | LT 0.10 | 0 | 0.25 | 0.25 - 0.50 |
| Paradise | LT 0.10 | LT 0.10 | 0.25 - 0.50 | 0.25 - 0.50 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.25 | LT 0.25 |
| Mt Hood Meadows | LT 0.10 | LT 0.10 | 0.25 - 0.50 | 0.25 - 0.50 |
| Timberline | LT 0.10 | LT 0.25 | 0.50 | 0.50 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | LT 0.25 |
| Saturday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.25 |
| Saturday | 0 |
| Saturday Night | LT 0.25 |
| Saturday | 0.50 - 0.75 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Saturday | LT 0.25 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Saturday | LT 0.25 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Saturday | 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | LT 0.25 |
| Saturday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Saturday | 0.25 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | 0 |
| Saturday Night | 0.25 |
| Saturday | 0.25 - 0.50 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | LT 0.10 |
| Saturday Night | 0.25 - 0.50 |
| Saturday | 0.25 - 0.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | LT 0.10 |
| Saturday Night | LT 0.25 |
| Saturday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | LT 0.10 |
| Saturday Night | 0.25 - 0.50 |
| Saturday | 0.25 - 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Saturday | LT 0.25 |
| Saturday Night | 0.50 |
| Saturday | 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: 2:26 PM PDT Wednesday, April 3, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | SW 10 - 20 | SW 10 - 20 | SW 15 - 25 | SW 10 - 20 | SW 15 - 25 |
| Wednesday Night | SW 5 - 15 | SW 5 - 15 | SW 5 - 15 | SW 0 - 10 | SW 5 - 15 |
| Thursday Morning | S 0 - 10 | SE 0 - 10 | SE 0 - 10 | SE 0 - 10 | SE 0 - 10 |
| Thursday Afternoon | SE 5 - 15 | S 0 - 10 | SE 0 - 10 | S 0 - 10 | ESE 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | SE 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | SW 15 - 25 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | SW 15 - 25 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | ESE 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | S 0 - 10 |
| Thursday Afternoon | SE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SW 15 - 25 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | SE 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | SW 10 - 20 |
| Wednesday Night | SW 0 - 10 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | S 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | SW 15 - 25 |
| Wednesday Night | SW 5 - 15 |
| Thursday Morning | SE 0 - 10 |
| Thursday Afternoon | ESE 0 - 10 |
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 | SW 20 - 30 | W 30 - 40 | W 30 - 40 | W 25 - 35 | SW 20 - 30 |
| Wednesday Night | W 15 - 25 | W 10 - 20 | W 20 - 30 | W 15 - 25 | SW 10 - 20 |
| Thursday Morning | SW 5 - 15 | SW 5 - 15 | SW 10 - 20 | S 5 - 15 | S 5 - 15 |
| Thursday Afternoon | SE 5 - 15 | S 5 - 15 | SW 10 - 20 | SW 10 - 20 | S 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | SW 20 - 30 |
| Wednesday Night | W 15 - 25 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SE 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | W 30 - 40 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | W 30 - 40 |
| Wednesday Night | W 20 - 30 |
| Thursday Morning | SW 10 - 20 |
| Thursday Afternoon | SW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | W 25 - 35 |
| Wednesday Night | W 15 - 25 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | SW 20 - 30 |
| Wednesday Night | SW 10 - 20 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | S 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: 2:26 PM PDT Wednesday, April 3, 2019
Extended Weather Synopsis for Saturday night through Saturday
The next pair of frontal systems to impact the PNW over the weekend and through Monday have the potential to be stronger. There is poor confidence in the timing of individual weather systems. Regarding strength, the GFS continues to indicate a stronger winter-like system for Saturday night while the Canadian and European models indicate a stronger system toward the end of the weekend. While the details are up in the air, we can say it will be a wet and potentially stormy weekend with cooler snow levels on the northerly side of the storm track (Washington State).
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Snow Level | 3000' - 4000' | 3000' - 4000' | 3000' - 4000' | |
| Saturday | Snow Level | 4000' - 5000' | 4000' - 5000' | 5000' - 6000' | |
| Saturday Night | Snow Level | 4000' - 5000' | 4000' - 5000' | 5500' - 6500' | |
| Sunday | Snow Level | 3000' - 4000' | 3000' - 4000' | 4500' - 5500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Snow Level 3000' - 4000' |
| Saturday |
Snow Level 4000' - 5000' |
| Saturday Night |
Snow Level 4000' - 5000' |
| Sunday |
Snow Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Snow Level 3000' - 4000' |
| Saturday |
Snow Level 4000' - 5000' |
| Saturday Night |
Snow Level 4000' - 5000' |
| Sunday |
Snow Level 3000' - 4000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Snow Level 3000' - 4000' |
| Saturday |
Snow Level 5000' - 6000' |
| Saturday Night |
Snow Level 5500' - 6500' |
| Sunday |
Snow Level 4500' - 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Apr 3, 2019
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