Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Tuesday
A subtropical feed of moisture continues to take aim at Mt. Hood and the Oregon Cascades on Monday morning on a WSW flow. The precipitation is lighter but mostly continuous in the southern Washington Cascades on Monday morning. Snow levels approaching 7000 ft in the Hood region early Monday morning will gradually drop throughout the day as a broad upper-level trough gradually moves into the region. The incoming trough will help to usher increasing rain and snow showers into the Washington Cascades and Olympics during the day on Monday with increasing instability possibly touching off an isolated convective showers or thunderstorms, particularly during the afternoon hours. The trough will also bring gradually cooling temperatures and moderate to heavy but less sustained, more showery precipitation, to the Mt. Hood region by the afternoon hours.
Monday night, the upper trough will move over the region with generally lighter orographic rain and snow shower activity continuing, heaviest in the Mt. Hood area and in a possible convergence zone forming near or south of Snoqualmie Pass overnight. Winds will shift to westerly.
On Tuesday, flow aloft shifts NWerly with a broad ridge building offshore. Light and gradually decreasing rain and snow showers will continue over the Washington Cascades with light to moderate showers over the Hood region. The North Cascades should dry out by late morning with the east slopes of the Cascades experiencing plenty of sunshine.
Weather Forecast
Hurricane Ridge
| Monday | Mostly cloudy with increasing chances of scattered showers; an isolated thundershower possible late in the day. Steady temperatures. Light to moderate winds. |
Mt. Baker
| Monday | Cloudy with periods of light rain or snow in the morning then increased chances of convective showers in the afternoon. Light to occasionally moderate winds. |
Washington Pass and Leavenworth
| Monday | Increasing periods of light rain and snow spreading throughout the region from south to north in the morning, becoming slightly heavier in the afternoon. Light to occasionally moderate winds. |
Stevens and Snoqualmie Pass
| Monday | Increasing periods of light rain and snow spreading throughout the region from south to north in the morning, becoming slightly heavier and more convective in the afternoon. Light to moderate 5000 ft winds; Light E wind becoming westerly by mid-afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday | Light to moderate rain and snow, heaviest at Paradise. Light to moderate winds. Mild with gradual cooling late in the day. |
Mt. Hood
| Monday | Heavy rain and high elevation snow in the morning, becoming moderate to heavy in the afternoon. Gradually cooling temperatures. Moderate 5000 ft winds. Strong ridge-top winds in the morning decreasing in the afternoon. |
Issued: 7:05 AM PDT Monday, April 8, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level * | 4000' | 4000' | 4000' | 5000' | 4500' | 5000' | 5500' | 6500' |
| Monday Afternoon | Snow Level | 5000' | 4500' | 5000' | 5000' | 5000' | 5500' | 5500' | 6000' |
| Monday Evening | Snow Level | 5000' | 5000' | 5500' | 5500' | 5500' | 5500' | 5500' | 5500' |
| Monday Night | Snow Level | 4000' | 4000' | 4000' | 4500' | 4000' | 4000' | 4000' | 4000' |
| Tuesday Morning | Snow Level | 3500' | 3500' | 3500' | 4000' | 3500' | 3500' | 3500' | 3500' |
| Tuesday Afternoon | Snow Level | 4000' | 3500' | 4500' | 4000' | 3500' | 3500' | 3500' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 4500' |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 4500' |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4500' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4000' |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 4500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 6500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3500' |
| Tuesday 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
| Monday | Monday Night | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | LT 0.25 | 0 |
| Mt Baker Ski Area | LT 0.25 | 0.25 - 0.50 | LT 0.10 |
| Washington Pass | LT 0.25 | LT 0.25 | LT 0.10 |
| Leavenworth | LT 0.25 | LT 0.10 | 0 |
| Stevens Pass | 0.25 | 0.25 - 0.50 | LT 0.10 |
| Snoqualmie Pass | 0.25 - 0.50 | 0.25 | LT 0.25 |
| Mission Ridge | LT 0.25 | LT 0.10 | 0 |
| Crystal Mt | 0.25 | LT 0.25 | LT 0.25 |
| Paradise | 0.50 - 0.75 | 0.25 | 0.25 |
| White Pass | 0.50 | LT 0.25 | LT 0.25 |
| Mt Hood Meadows | 1.50 | 0.75 | 0.50 - 0.75 |
| Timberline | 1.50 | 0.75 | 0.50 - 0.75 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | 0.25 - 0.50 |
| Tuesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | 0.25 - 0.50 |
| Tuesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 0.25 - 0.50 |
| Monday Night | 0.25 |
| Tuesday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 0.50 - 0.75 |
| Monday Night | 0.25 |
| Tuesday | 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 0.50 |
| Monday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 1.50 |
| Monday Night | 0.75 |
| Tuesday | 0.50 - 0.75 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 1.50 |
| Monday Night | 0.75 |
| Tuesday | 0.50 - 0.75 |
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: 7:05 AM PDT Monday, April 8, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | SSW 10 - 20 | SE 10 - 20 | SE 10 - 20 | SSW 10 - 20 | WSW 15 - 25 |
| Monday Afternoon | SSW 10 - 20 | S 5 - 15 | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 |
| Monday Evening | SW 5 - 15 | SW 5 - 15 | WSW 10 - 20 | SW 5 - 15 | WSW 20 - 30 |
| Monday Night | W 15 - 25 | W 5 - 15 | W 15 - 25 | W 15 - 25 | W 25 - 35 |
| Tuesday Morning | W 15 - 25 | WSW 10 - 20 | W 15 - 25 | W 15 - 25 | W 30 - 45 |
| Tuesday Afternoon | W 15 - 25 | WSW 10 - 20 | W 15 - 25 | W 15 - 25 | W 30 - 45 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | SSW 10 - 20 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | S 5 - 15 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 15 - 25 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 30 - 45 |
| Tuesday Afternoon | W 30 - 45 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | SSW 10 - 20 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | S 5 - 15 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 5 - 15 |
| Tuesday Morning | WSW 10 - 20 |
| Tuesday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | SE 10 - 20 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | SW 5 - 15 |
| Monday Night | W 15 - 25 |
| Tuesday Morning | W 15 - 25 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 15 - 25 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | W 25 - 35 |
| Tuesday Morning | W 30 - 45 |
| Tuesday 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | SSW 25 - 35 | SW 20 - 30 | SSW 25 - 35 | SW 25 - 35 | WSW 30 - 45 |
| Monday Afternoon | SW 25 - 35 | SW 15 - 25 | SW 20 - 30 | SW 20 - 30 | WSW 25 - 35 |
| Monday Evening | WSW 10 - 20 | WSW 20 - 30 | WSW 20 - 30 | WSW 20 - 30 | WSW 25 - 35 |
| Monday Night | W 10 - 20 | WNW 10 - 20 | W 20 - 30 | W 30 - 45 | W 30 - 45 |
| Tuesday Morning | WNW 10 - 20 | WNW 15 - 25 | WNW 25 - 35 | WNW 30 - 45 | NW 40 - 60 |
| Tuesday Afternoon | W 15 - 25 | WNW 20 - 30 | WNW 30 - 45 | WNW 30 - 45 | WNW 35 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SSW 25 - 35 |
| Monday Afternoon | SW 25 - 35 |
| Monday Evening | WSW 10 - 20 |
| Monday Night | W 10 - 20 |
| Tuesday Morning | WNW 10 - 20 |
| Tuesday Afternoon | W 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | SW 20 - 30 |
| Monday Afternoon | SW 15 - 25 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | WNW 10 - 20 |
| Tuesday Morning | WNW 15 - 25 |
| Tuesday Afternoon | WNW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | SSW 25 - 35 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | W 20 - 30 |
| Tuesday Morning | WNW 25 - 35 |
| Tuesday Afternoon | WNW 30 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | SW 25 - 35 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | WSW 20 - 30 |
| Monday Night | W 30 - 45 |
| Tuesday Morning | WNW 30 - 45 |
| Tuesday Afternoon | WNW 30 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WSW 30 - 45 |
| Monday Afternoon | WSW 25 - 35 |
| Monday Evening | WSW 25 - 35 |
| Monday Night | W 30 - 45 |
| Tuesday Morning | NW 40 - 60 |
| Tuesday Afternoon | WNW 35 - 50 |
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 Apr 7, 2019
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