Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Sunday
No major changes to the forecast as the dry and mostly clear stretch of weather continues over our region. The flow aloft will turn more northerly over the next two days but we will have to wait until Sunday night for a weather system to reach our area.
Westerly winds will tick up a notch this afternoon with slightly stronger onshore flow, potentially reaching the moderate range in the afternoon particularly for the central Cascades. There should be less afternoon cumulus buildup relative to yesterday except for the far south Washington Cascades and Mt. Hood area. Mt. Hood is closer to the upper level low complex positioned well to our south and as a result, daytime heating may kickoff an isolated shower this afternoon.
Over the next two days, freezing levels will hover in the 5000-7000' range, peaking in the afternoon and dipping slightly overnight. Temperature inversions will continue to develop each night with cooler or even sub-freezing temperatures along the lower slopes and deep valley and milder air above. Temperature inversions will not be as deep or pronounced as earlier in the week, expect them to mix out quickly by mid to late morning both Friday and Saturday morning.
Weather Forecast
Hurricane Ridge
| Friday | Mostly sunny with a few afternoon cumulus clouds. |
Mt. Baker
| Friday | Mostly sunny with a few afternoon cumulus clouds. |
Washington Pass and Leavenworth
| Friday | Mostly sunny with a few afternoon cumulus clouds near the Cascade crest. |
Stevens and Snoqualmie Pass
| Friday | Mostly sunny with a few afternoon cumulus clouds. Light winds at Pass level becoming light to moderate west winds in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Friday | Mostly sunny with a few afternoon cumulus clouds. |
Mt. Hood
| Friday | Mostly sunny, becoming partly to mostly sunny in the afternoon with a slight chance of a rain or snow shower. |
Issued: 6:49 AM PDT Friday, March 20, 2020
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 | 5500' | 5500' | 3500' | 5500' | 5500' | 5500' | 6000' | 6500' |
| Friday Afternoon | Freezing Level | 6500' | 6000' | 6500' | 6500' | 6500' | 6500' | 7000' | 7500' |
| Friday Evening | Freezing Level | 5500' | 5000' | 5000' | 5500' | 5500' | 5500' | 5500' | 6500' |
| Friday Night | Freezing Level | 4500' | 4000' | 2500' | 4500' | 4000' | 4500' | 4500' | 6000' |
| Saturday Morning | Freezing Level | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' | 6000' | 6500' |
| Saturday Afternoon | Freezing Level | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 7500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6000' |
| Friday Evening |
Freezing Level 5000' |
| Friday Night |
Freezing Level 4000' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 3500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Freezing Level 5000' |
| Friday Night |
Freezing Level 2500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4000' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Freezing Level 7000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Freezing Level 6000' |
| Friday Afternoon |
Freezing Level 7000' |
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 6000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Freezing Level 6500' |
| Friday Afternoon |
Freezing Level 7500' |
| Friday Evening |
Freezing Level 6500' |
| Friday Night |
Freezing Level 6000' |
| Saturday Morning |
Freezing Level 6500' |
| Saturday Afternoon |
Freezing Level 7500' |
* 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 | Sunday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Sunday | 0 |
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: 6:49 AM PDT Friday, March 20, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 | SW 5 - 15 | W 10 - 20 | W 5 - 15 | WNW 5 - 15 |
| Friday Evening | W 0 - 10 | SW 0 - 10 | W 5 - 15 | W 0 - 10 | WNW 5 - 15 |
| Friday Night | VAR 0 - 10 | VAR 0 - 10 | W 5 - 15 | W 0 - 10 | WNW 5 - 15 |
| Saturday Morning | NE 0 - 10 | N 0 - 10 | NW 0 - 10 | NW 0 - 10 | WNW 0 - 10 |
| Saturday Afternoon | N 0 - 10 | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | NE 0 - 10 |
| Saturday Afternoon | N 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 5 - 15 |
| Friday Evening | SW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | W 0 - 10 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WNW 5 - 15 |
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | NE 0 - 10 |
| Saturday Afternoon | N 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 5 - 15 |
| Friday Evening | SW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | W 0 - 10 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | WNW 5 - 15 |
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | NW 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 | |
|---|---|---|---|---|---|
| Friday Morning | WNW 5 - 15 | WNW 5 - 15 | WNW 10 - 20 | WNW 5 - 15 | NW 10 - 20 |
| Friday Afternoon | WNW 5 - 15 | WNW 5 - 15 | NW 15 - 25 | NW 10 - 20 | WNW 5 - 15 |
| Friday Evening | NW 10 - 20 | NW 5 - 15 | NW 15 - 25 | NW 10 - 20 | WNW 10 - 20 |
| Friday Night | NW 5 - 15 | N 5 - 15 | N 5 - 15 | NW 10 - 20 | NW 10 - 20 |
| Saturday Morning | N 5 - 15 | N 5 - 15 | N 5 - 15 | NW 10 - 20 | NW 10 - 20 |
| Saturday Afternoon | N 5 - 15 | N 15 - 25 | NE 5 - 15 | NE 0 - 10 | N 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | WNW 5 - 15 |
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | N 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | WNW 5 - 15 |
| Friday Evening | NW 5 - 15 |
| Friday Night | N 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | N 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | WNW 10 - 20 |
| Friday Afternoon | NW 15 - 25 |
| Friday Evening | NW 15 - 25 |
| Friday Night | N 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | NE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | NW 10 - 20 |
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 10 - 20 |
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | NE 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | NW 10 - 20 |
| Friday Afternoon | WNW 5 - 15 |
| Friday Evening | WNW 10 - 20 |
| Friday Night | NW 10 - 20 |
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | N 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Mar 19, 2020
The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.