Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Thursday night through Friday
A flat ridge remains over the region Friday evening. High clouds associated with a weak shortwave trough should continue to increase overnight until the weak shortwave moves through during the early morning hours, bringing the potential for a trace of rain in some areas. Freezing levels 7500 ft and above on Thursday evening should begin to gradually lower as the trough brings a slight cooling and switches the flow WNWerly.
Mostly sunny skies are expected in most areas on Friday, but high temperatures Friday should be 5-10 F cooler than Thursday. Winds increase ahead of a more significant trough arriving Friday night into Saturday.
Periods of rain and snow at lowering snow levels will increase Friday night in the north and the central Washington Cascades, before shifting into the southern Washington Cascades on Saturday. Snow levels should be low enough that Snoqualmie, Stevens, Baker, Paradise, and Crystal could see several inches of fresh snow by the end of the day on Saturday.
Winds should peak early Saturday morning in the moderate range in the north but should maintain or increase further south during the day.
Weather Forecast
Hurricane Ridge
| Thursday Night | Increasing high and mid-level clouds, passing and clearing in the early morning hours. Mild with slight cooling. Light winds becoming light to moderate. |
| Friday | Mostly clear. Slightly cooler. Increasing light to moderate winds. |
Mt. Baker
| Thursday Night | Increasing high and mid-level clouds. Mild with slight cooling. Light winds. |
| Friday | Mostly clear with some clouds in the afternoon. Slightly cooler. Increasing light to moderate winds. |
Washington Pass and Leavenworth
| Thursday Night | Increasing high and mid-level clouds. Mild with slight cooling. Increasing light winds possibly reaching moderate speeds late in the I-90 and highway 2 corridors. |
| Friday | Mostly clear with some clouds in the afternoon. Slightly cooler. Increasing light to moderate winds. |
Stevens and Snoqualmie Pass
| Thursday Night | Increasing high and mid-level clouds. Mild with slight cooling. Increasing light winds becoming light to moderate at 5000 ft and increasing light W winds at pass level. |
| Friday | Mostly clear with some clouds in the afternoon. Slightly cooler. Increasing light to moderate winds at 5000 ft and increasing light W winds gusting to moderate at pass level. |
Mt. Rainier, Crystal and White Pass
| Thursday Night | Increasing high and mid-level clouds. Mild with slight cooling. Increasing light winds. |
| Friday | Mostly clear with some clouds in the afternoon. Slightly cooler. Increasing light to moderate winds. |
Mt. Hood
| Thursday Night | Increasing high and mid-level clouds. Very mild with slight cooling. Increasing light winds. |
| Friday | Mostly clear. Slightly cooler. Increasing moderate winds. |
Issued: 3:03 PM PDT Thursday, April 25, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Evening | Freezing Level | 7500' | 7500' | 8000' | 8500' | 8500' | 8500' | 8500' | 10000' |
| Thursday Night | Freezing Level | 6500' | 6500' | 7000' | 7500' | 7000' | 7000' | 7500' | 9000' |
| Friday Morning | Freezing Level | 6000' | 5500' | 6000' | 6000' | 5500' | 5500' | 5500' | 6500' |
| Friday Afternoon | Freezing Level | 6000' | 5500' | 6500' | 6500' | 6000' | 6000' | 6500' | 6500' |
| Friday Evening | Snow Level | 4500' | 4500' | 5500' | 5500' | 5000' | 5000' | 5500' | 6500' |
| Friday Night | Snow Level | 3500' | 3000' | 4000' | 4000' | 3500' | 3500' | 3500' | 5000' |
| Saturday Morning | Snow Level | 2500' | 2500' | 3000' | 3500' | 3000' | 2500' | 3000' | 3500' |
| Saturday Afternoon | Snow Level | 2500' | 2500' | 3500' | 3000' | 2500' | 2500' | 3000' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 7500' |
| Thursday Night |
Freezing Level 6500' |
| Friday Morning |
Freezing Level 6000' |
| Friday Afternoon |
Freezing Level 6000' |
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 3500' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 7500' |
| Thursday Night |
Freezing Level 6500' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 5500' |
| Friday Evening |
Snow Level 4500' |
| Friday Night |
Snow Level 3000' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 8000' |
| Thursday Night |
Freezing Level 7000' |
| Friday Morning |
Freezing Level 6000' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3500' |
| Leavenworth | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 7500' |
| Friday Morning |
Freezing Level 6000' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Snow Level 4000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 3000' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 7000' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6000' |
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Snow Level 3500' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 2500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 7000' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6000' |
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Snow Level 3500' |
| Saturday Morning |
Snow Level 2500' |
| Saturday Afternoon |
Snow Level 2500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 8500' |
| Thursday Night |
Freezing Level 7500' |
| Friday Morning |
Freezing Level 5500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Snow Level 3500' |
| Saturday Morning |
Snow Level 3000' |
| Saturday Afternoon |
Snow Level 3000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening |
Freezing Level 10000' |
| Thursday Night |
Freezing Level 9000' |
| Friday Morning |
Freezing Level 6500' |
| Friday Afternoon |
Freezing Level 6500' |
| Friday Evening |
Snow Level 6500' |
| Friday Night |
Snow Level 5000' |
| Saturday Morning |
Snow Level 3500' |
| Saturday Afternoon |
Snow Level 3500' |
* 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 Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | LT 0.10 | 0 |
| Mt Baker Ski Area | 0 | 0 | LT 0.25 | LT 0.25 |
| Washington Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | 0 | 0 | LT 0.10 | 0.25 |
| Mission Ridge | 0 | 0 | 0 | LT 0.10 |
| Crystal Mt | 0 | 0 | 0 | LT 0.10 |
| Paradise | 0 | 0 | 0 | LT 0.25 |
| White Pass | 0 | 0 | 0 | LT 0.10 |
| Mt Hood Meadows | 0 | 0 | 0 | LT 0.10 |
| Timberline | 0 | 0 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.25 |
| Friday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | LT 0.10 |
| Friday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 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: 3:03 PM PDT Thursday, April 25, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Evening | WSW 5 - 15 | WSW 5 - 15 | W 5 - 15 | WNW 5 - 15 | W 10 - 20 |
| Thursday Night | W 10 - 20 | WSW 5 - 15 | W 10 - 20 | WSW 5 - 15 | W 20 - 30 |
| Friday Morning | WSW 10 - 20 | SW 5 - 15 | W 10 - 20 | W 10 - 20 | W 15 - 25 |
| Friday Afternoon | WSW 15 - 25 | SW 10 - 20 | W 15 - 25 | W 15 - 25 | W 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | W 10 - 20 |
| Friday Morning | WSW 10 - 20 |
| Friday Afternoon | WSW 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 10 - 20 |
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Evening | WNW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Evening | W 10 - 20 |
| Thursday Night | W 20 - 30 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | W 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | W 10 - 20 |
| Friday Morning | WSW 10 - 20 |
| Friday Afternoon | WSW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | WSW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | SW 5 - 15 |
| Friday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | W 5 - 15 |
| Thursday Night | W 10 - 20 |
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | WNW 5 - 15 |
| Thursday Night | WSW 5 - 15 |
| Friday Morning | W 10 - 20 |
| Friday Afternoon | W 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | W 10 - 20 |
| Thursday Night | W 20 - 30 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | W 20 - 30 |
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 Evening | SSW 10 - 20 | SW 10 - 20 | SW 20 - 30 | SW 15 - 25 | WSW 25 - 35 |
| Thursday Night | W 10 - 20 | W 10 - 20 | W 25 - 35 | W 25 - 35 | W 35 - 50 |
| Friday Morning | W 15 - 25 | WNW 15 - 25 | WNW 30 - 45 | WNW 30 - 45 | W 30 - 45 |
| Friday Afternoon | WSW 20 - 30 | W 20 - 30 | W 30 - 45 | W 30 - 45 | W 30 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Evening | SSW 10 - 20 |
| Thursday Night | W 10 - 20 |
| Friday Morning | W 15 - 25 |
| Friday Afternoon | WSW 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Evening | SW 10 - 20 |
| Thursday Night | W 10 - 20 |
| Friday Morning | WNW 15 - 25 |
| Friday Afternoon | W 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Evening | SW 20 - 30 |
| Thursday Night | W 25 - 35 |
| Friday Morning | WNW 30 - 45 |
| Friday Afternoon | W 30 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Evening | SW 15 - 25 |
| Thursday Night | W 25 - 35 |
| Friday Morning | WNW 30 - 45 |
| Friday Afternoon | W 30 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Evening | WSW 25 - 35 |
| Thursday Night | W 35 - 50 |
| Friday Morning | W 30 - 45 |
| Friday Afternoon | W 30 - 45 |
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: 3:03 PM PDT Thursday, April 25, 2019
Extended Weather Synopsis for Friday night through Friday
The western edge of the cool trough should linger over the region through Tuesday while the energy from the system mostly departs early Saturday night. Expect a few lingering snow showers Saturday evening with moderating temperatures into Sunday as temperatures return to near seasonal norms. Diurnal heating and cool air aloft should spark some afternoon rain/snow/graupel showers that could be locally intense, particularly during the afternoon hours.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Saturday Night | Snow Level | 2000' - 3000' | 2000' - 3000' | 2000' - 4000' | |
| Sunday | Snow Level | 2500' - 4500' | 2500' - 4500' | 3000' - 4500' | |
| Sunday Night | Freezing Level | 5000' - 6000' | 5000' - 6000' | 5000' - 6500' | |
| Monday | Snow Level | 4000' - 5000' | 4000' - 5000' | 4000' - 5000' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Night |
Snow Level 2000' - 3000' |
| Sunday |
Snow Level 2500' - 4500' |
| Sunday Night |
Freezing Level 5000' - 6000' |
| Monday |
Snow Level 4000' - 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Night |
Snow Level 2000' - 3000' |
| Sunday |
Snow Level 2500' - 4500' |
| Sunday Night |
Freezing Level 5000' - 6000' |
| Monday |
Snow Level 4000' - 5000' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Night |
Snow Level 2000' - 4000' |
| Sunday |
Snow Level 3000' - 4500' |
| Sunday Night |
Freezing Level 5000' - 6500' |
| Monday |
Snow Level 4000' - 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.
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 24, 2019
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