Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Thursday
Some leftover high cloud from the upper low that passed to our south will linger over much of the Cascades this morning before thinning mid-day. Areas of low clouds and fog as seen in the Stevens Pass area should not stick around long this morning. A negatively tilted frontal band extending from a low pressure in the Gulf of Alaska is slowly approaching the Washington coast this morning. The slow progression of the front should allow the Cascades to have an extended window of partly to mostly sunny skies through the early afternoon. The Olympics and Mt. Hood will see more clouds, a quicker cool down and the onset of light rain and snow in the afternoon. Winds will increase in the afternoon for these areas as well as for Mt. Baker.
The front will weaken as it passes through the Cascades this evening with pretty unimpressive precipitation totals expected overnight. Showers should diminish quickly after midnight. The one exception will the Mt. Baker area where a modest half inch of water or so is expected overnight in post-frontal showers. The front will usher in much cooler air and we should see widespread temperatures below freezing for the first time in over a week.
Weak longwave troughing will remain over the area Saturday along with onshore (westerly flow) at the surface. This should translate to slowly building cumulus in the afternoon with a chance of showers mainly for the Cascade Passes, west slopes and Olympics and more sun for the east slopes of the Cascades.
Weather Forecast
Hurricane Ridge
| Friday | Partly sunny becoming cloudy mid-day with light rain and snow developing in the afternoon. Winds increasing in the afternoon. |
Mt. Baker
| Friday | Partly sunny and mild through midday, then becoming cloudy in the afternoon with a chance of showers. Winds increasing in the afternoon. |
Washington Pass and Leavenworth
| Friday | Partly sunny and mild through early afternoon, then becoming cloudy late in the afternoon. |
Stevens and Snoqualmie Pass
| Friday | Partly sunny and mild through midday, then becoming cloudy in the afternoon with a chance of showers. West wind in the Passes increasing late in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Friday | Partly sunny and mild through midday, then becoming cloudy in the afternoon with a chance of showers. |
Mt. Hood
| Friday | Partly sunny becoming cloudy mid-day with light rain and snow developing in the afternoon. Winds increasing in the afternoon. |
Issued: 7:08 AM PDT Friday, March 22, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Freezing Level | 6500' | 7500' | 8000' | 8000' | 8000' | 7500' | 7500' | 7000' |
| Friday Afternoon | Snow Level | 5500' | 6000' | 6500' | 6500' | 6500' | 6000' | 6000' | 5500' |
| Friday Evening | Snow Level | 4000' | 5000' | 6000' | 6000' | 5000' | 5000' | 4500' | 4500' |
| Friday Night | Snow Level | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' |
| Saturday Morning | Snow Level | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' | 3500' |
| Saturday Afternoon | Snow Level | 4000' | 4500' | 5000' | 5000' | 4500' | 4500' | 4500' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Freezing Level 6500' |
| Friday Afternoon |
Snow Level 5500' |
| Friday Evening |
Snow Level 4000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Freezing Level 7500' |
| Friday Afternoon |
Snow Level 6000' |
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Friday Evening |
Snow Level 6000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 5000' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Friday Evening |
Snow Level 6000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 5000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 8000' |
| Friday Afternoon |
Snow Level 6500' |
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 7500' |
| Friday Afternoon |
Snow Level 6000' |
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Freezing Level 7500' |
| Friday Afternoon |
Snow Level 6000' |
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Freezing Level 7000' |
| Friday Afternoon |
Snow Level 5500' |
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 4500' |
* 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 | Friday Night | Thursday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | 0.50 | LT 0.10 |
| Washington Pass | 0 | LT 0.10 | 0 |
| Leavenworth | 0 | LT 0.10 | 0 |
| Stevens Pass | LT 0.10 | LT 0.25 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.25 | LT 0.10 |
| Mission Ridge | 0 | LT 0.10 | 0 |
| Crystal Mt | LT 0.10 | LT 0.10 | LT 0.10 |
| Paradise | LT 0.10 | LT 0.25 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.25 | LT 0.10 | LT 0.10 |
| Timberline | LT 0.25 | LT 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0.50 |
| Thursday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | LT 0.10 |
| Thursday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | LT 0.10 |
| Thursday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | LT 0.10 |
| Thursday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.25 |
| Thursday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | LT 0.25 |
| Thursday | 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: 7:08 AM PDT Friday, March 22, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | S 10 - 20 | S 5 - 15 | VAR 0 - 10 | S 0 - 10 | SW 5 - 15 |
| Friday Afternoon | S 15 - 30 | S 15 - 25 | WSW 10 - 20 | SW 10 - 20 | SW 10 - 20 |
| Friday Evening | SW 10 - 20 | SSW 15 - 30 | WSW 15 - 25 | SW 10 - 20 | SW 10 - 20 |
| Friday Night | SW 5 - 15 | SW 5 - 15 | WSW 5 - 15 | SW 5 - 15 | SW 10 - 20 |
| Saturday Morning | S 0 - 10 | S 0 - 10 | SW 0 - 10 | SW 0 - 10 | SW 5 - 15 |
| Saturday Afternoon | S 0 - 10 | SW 0 - 10 | SW 0 - 10 | SW 0 - 10 | W 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | S 15 - 30 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | S 5 - 15 |
| Friday Afternoon | S 15 - 25 |
| Friday Evening | SSW 15 - 30 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WSW 10 - 20 |
| Friday Evening | WSW 15 - 25 |
| Friday Night | WSW 5 - 15 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 10 - 20 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | W 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | S 15 - 30 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | S 5 - 15 |
| Friday Afternoon | S 15 - 25 |
| Friday Evening | SSW 15 - 30 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WSW 10 - 20 |
| Friday Evening | WSW 15 - 25 |
| Friday Night | WSW 5 - 15 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | S 0 - 10 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 10 - 20 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 10 - 20 |
| Saturday Morning | SW 5 - 15 |
| Saturday 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 | |
|---|---|---|---|---|---|
| Friday Morning | S 10 - 20 | S 5 - 15 | SE 10 - 20 | SE 10 - 20 | S 10 - 20 |
| Friday Afternoon | S 20 - 30 | S 10 - 20 | S 15 - 25 | S 15 - 30 | SW 20 - 30 |
| Friday Evening | SSW 20 - 30 | SW 5 - 15 | SW 10 - 20 | SW 10 - 20 | SW 20 - 30 |
| Friday Night | SW 10 - 20 | SW 5 - 15 | SW 15 - 25 | SW 15 - 25 | SW 15 - 25 |
| Saturday Morning | SW 0 - 10 | S 0 - 10 | SW 5 - 15 | SW 5 - 15 | SW 10 - 20 |
| Saturday Afternoon | S 0 - 10 | S 0 - 10 | SW 0 - 10 | SW 0 - 10 | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | S 20 - 30 |
| Friday Evening | SSW 20 - 30 |
| Friday Night | SW 10 - 20 |
| Saturday Morning | SW 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | S 5 - 15 |
| Friday Afternoon | S 10 - 20 |
| Friday Evening | SW 5 - 15 |
| Friday Night | SW 5 - 15 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | SE 10 - 20 |
| Friday Afternoon | S 15 - 25 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 15 - 25 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | SE 10 - 20 |
| Friday Afternoon | S 15 - 30 |
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 15 - 25 |
| Saturday Morning | SW 5 - 15 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | S 10 - 20 |
| Friday Afternoon | SW 20 - 30 |
| Friday Evening | SW 20 - 30 |
| Friday Night | SW 15 - 25 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SW 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Mar 21, 2019
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