Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Sunday night through Wednesday
A closed upper level low will continue to drop south along the California coast tonight as a longwave trough remains over our region. Cool temperatures, mostly cloudy skies and isolated mountain showers will continue through the evening.
The main instability associated with the upper level trough will shift east to the Inland NW on Monday while onshore westerly flow increases during the day. There should be abundant low-level clouds along the west slopes of the Cascades, Olympics, and Mt. Hood Monday morning. All areas should see mostly sunny but still seasonally cool temperatures in the afternoon. Look for westerly winds to become moderate near the Passes and along the east slopes of the Cascades in the afternoon and evening hours. The best chance for an afternoon shower will be across the northern Cascades closer to higher terrain in the Pasatyen Wilderness. Tuesday looks like a near repeat of Monday. The Mt. Hood area will see somewhat higher freezing levels than areas further north over the short term.
Weather Forecast
Hurricane Ridge
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening. |
| Monday | Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. |
Mt. Baker
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening. |
| Monday | Mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. |
Washington Pass and Leavenworth
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening near Washington Pass. |
| Monday | Mostly sunny, becoming partly to mostly sunny higher terrain in the afternoon. |
Stevens and Snoqualmie Pass
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening. Pass level winds light and variable. |
| Monday | Mostly cloudy in the morning, becoming mostly sunny in the afternoon. Light west winds becoming moderate at Pass level in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening. |
| Monday | Mostly cloudy in the morning, becoming mostly sunny in the afternoon. |
Mt. Hood
| Sunday Night | Mostly cloudy. Isolated rain and snow showers in the evening. |
| Monday | Mostly cloudy in the morning, becoming mostly sunny in the afternoon. |
Issued: 1:52 PM PDT Sunday, April 5, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Evening | Snow Level | 4000' | 4000' | 4000' | 5000' | 4500' | 4500' | 5000' | 5000' |
| Sunday Night | Freezing Level | 3500' | 3500' | 2000' | 4000' | 4000' | 4000' | 4000' | 6500' |
| Monday Morning | Freezing Level | 4500' | 4500' | 4000' | 5000' | 5000' | 4500' | 5000' | 6500' |
| Monday Afternoon | Freezing Level | 5500' | 5000' | 5500' | 6000' | 5000' | 5500' | 6000' | 6500' |
| Monday Evening | Freezing Level | 4500' | 4500' | 4500' | 5000' | 4000' | 4500' | 5000' | 6500' |
| Monday Night | Freezing Level | 3500' | 2500' | 2500' | 4000' | 2500' | 2500' | 3500' | 7000' |
| Tuesday Morning | Freezing Level | 4000' | 4000' | 4500' | 5000' | 4000' | 4500' | 4500' | 7500' |
| Tuesday Afternoon | Freezing Level | 5000' | 5000' | 5500' | 6000' | 5000' | 5500' | 6000' | 8000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4000' |
| Sunday Night |
Freezing Level 3500' |
| Monday Morning |
Freezing Level 4500' |
| Monday Afternoon |
Freezing Level 5500' |
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 3500' |
| Tuesday Morning |
Freezing Level 4000' |
| Tuesday Afternoon |
Freezing Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4000' |
| Sunday Night |
Freezing Level 3500' |
| Monday Morning |
Freezing Level 4500' |
| Monday Afternoon |
Freezing Level 5000' |
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 4000' |
| Tuesday Afternoon |
Freezing Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4000' |
| Sunday Night |
Freezing Level 2000' |
| Monday Morning |
Freezing Level 4000' |
| Monday Afternoon |
Freezing Level 5500' |
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 4500' |
| Tuesday Afternoon |
Freezing Level 5500' |
| Leavenworth | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 4000' |
| Monday Morning |
Freezing Level 5000' |
| Monday Afternoon |
Freezing Level 6000' |
| Monday Evening |
Freezing Level 5000' |
| Monday Night |
Freezing Level 4000' |
| Tuesday Morning |
Freezing Level 5000' |
| Tuesday Afternoon |
Freezing Level 6000' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4500' |
| Sunday Night |
Freezing Level 4000' |
| Monday Morning |
Freezing Level 5000' |
| Monday Afternoon |
Freezing Level 5000' |
| Monday Evening |
Freezing Level 4000' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 4000' |
| Tuesday Afternoon |
Freezing Level 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4500' |
| Sunday Night |
Freezing Level 4000' |
| Monday Morning |
Freezing Level 4500' |
| Monday Afternoon |
Freezing Level 5500' |
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 2500' |
| Tuesday Morning |
Freezing Level 4500' |
| Tuesday Afternoon |
Freezing Level 5500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 4000' |
| Monday Morning |
Freezing Level 5000' |
| Monday Afternoon |
Freezing Level 6000' |
| Monday Evening |
Freezing Level 5000' |
| Monday Night |
Freezing Level 3500' |
| Tuesday Morning |
Freezing Level 4500' |
| Tuesday Afternoon |
Freezing Level 6000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 6500' |
| Monday Morning |
Freezing Level 6500' |
| Monday Afternoon |
Freezing Level 6500' |
| Monday Evening |
Freezing Level 6500' |
| Monday Night |
Freezing Level 7000' |
| Tuesday Morning |
Freezing Level 7500' |
| Tuesday Afternoon |
Freezing Level 8000' |
* 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
| Sunday Night | Wednesday | Wednesday Night | Wednesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | 0 | 0 | 0 |
| Mt Baker Ski Area | LT 0.10 | 0 | 0 | 0 |
| Washington Pass | LT 0.10 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 | 0 |
| Mission Ridge | LT 0.10 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | 0 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 | 0 |
| White Pass | LT 0.10 | 0 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | 0 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 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: 1:52 PM PDT Sunday, April 5, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Evening | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 | W 0 - 10 |
| Monday Morning | W 0 - 10 | W 0 - 10 | W 5 - 15 | W 0 - 10 | W 5 - 15 |
| Monday Afternoon | W 5 - 15 | W 5 - 15 | W 15 - 25 | W 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | NW 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 10 - 20 |
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 | |
|---|---|---|---|---|---|
| Sunday Evening | SW 5 - 15 | SW 5 - 15 | WSW 15 - 25 | WSW 15 - 25 | SW 5 - 15 |
| Sunday Night | W 5 - 15 | W 10 - 20 | W 15 - 25 | W 10 - 20 | W 5 - 15 |
| Monday Morning | NW 10 - 20 | NW 10 - 20 | NW 15 - 25 | WNW 15 - 25 | W 10 - 20 |
| Monday Afternoon | NW 15 - 25 | NW 10 - 20 | NW 25 - 35 | NW 15 - 25 | NW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | NW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | W 10 - 20 |
| Monday Morning | NW 10 - 20 |
| Monday Afternoon | NW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | W 15 - 25 |
| Monday Morning | NW 15 - 25 |
| Monday Afternoon | NW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | W 10 - 20 |
| Monday Morning | WNW 15 - 25 |
| Monday Afternoon | NW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | NW 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: 1:52 PM PDT Sunday, April 5, 2020
Extended Weather Synopsis for Wednesday night through Wednesday
Flat upper level ridging will shift closer to the coast during the week, keeping the storm track at bay and well to our north. This will allow dry weather to continue with increasingly warmer temperatures day over day as the flow aloft stays out of the NW. Forecast models disagree just how much high cloud cover will waft over the northern half of Washington State during this time period. Look for warmer and sunnier conditions further south; freezing levels in the Mt. Hood area should top out above 10,000' by Thursday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday Night | Freezing Level | 3000' - 4000' | 3500' - 4500' | 7500' - 8500' | |
| Wednesday | Freezing Level | 5500' - 6500' | 6500' - 7500' | 9000' - 10000' | |
| Wednesday Night | Freezing Level | 5500' - 6500' | 7500' - 8500' | 8000' - 9000' | |
| Thursday | Freezing Level | 7000' - 8000' | 8000' - 9000' | 10000' - 11000' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 3000' - 4000' |
| Wednesday |
Freezing Level 5500' - 6500' |
| Wednesday Night |
Freezing Level 5500' - 6500' |
| Thursday |
Freezing Level 7000' - 8000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 3500' - 4500' |
| Wednesday |
Freezing Level 6500' - 7500' |
| Wednesday Night |
Freezing Level 7500' - 8500' |
| Thursday |
Freezing Level 8000' - 9000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 7500' - 8500' |
| Wednesday |
Freezing Level 9000' - 10000' |
| Wednesday Night |
Freezing Level 8000' - 9000' |
| Thursday |
Freezing Level 10000' - 11000' |
* 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 4, 2020
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