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 Sunday
A large upper-level ridge over the western US is allowing a shortwave trough to push a band of mid and upper-level moisture northward, which is touching off some generally light to very light rain and snow in parts of the Washington Cascades. Sunday evening, lingering precipitation should be mostly confined to regions north of Leavenworth and as far west as Mt. Baker. Clouds and precipitation will end from S to N as the feature moves NE into British Columbia.
A stronger frontal system will split from a parent closed low offshore Sunday night and will lift NE. Moisture will spread across the Mt. Hood and southern Washington Cascades and Olympics on Monday afternoon. Winds will pick up ahead of the feature and then switch to the SSW behind the front, ushering in cooler air. Moisture will be primarily associated with the frontal feature itself, but snow shower activity can be expected to continue into Tuesday afternoon in the Mt. Baker area, while most other areas largely dry out. Snow levels will start elevated, around 5000 ft, and then will drop behind the front, bottoming out near or below 3000 ft by Tuesday morning with a trough rotating and centered offshore.
Weather Forecast
Hurricane Ridge
| Sunday Night | Clearing skies in the evening, then high clouds arriving in the early morning hours. Light winds. |
| Monday | High clouds lowering and thickening. Light rain and snow probably developing in the late afternoon. Increasing light to moderate winds. |
Mt. Baker
| Sunday Night | Cloudy with periods of very light rain or snow mostly before midnight. Increasing light to moderate winds. |
| Monday | Partly cloudy in the morning with increasing high clouds lowering and thickening in the afternoon. Increasing light to moderate winds. |
Washington Pass and Leavenworth
| Sunday Night | Cloudy with periods of very light rain or snow clearing from south to north overnight. |
| Monday | Partly cloudy in the morning with high clouds lowering and thickening from the late morning onwards. Some very light rain or snow is possible late in the day in the south. Increasing moderate winds. |
Stevens and Snoqualmie Pass
| Sunday Night | Cloudy with clouds decreasing after midnight. Increasing light to moderate E wind at through the passes. Light winds at 5000 ft. |
| Monday | Partly cloudy early then increasing clouds lowering and thickening with light rain or snow possibly developing late in the day. Increasing moderate E wind through the passes. Moderate winds at 5000 ft. |
Mt. Rainier, Crystal and White Pass
| Sunday Night | Cloudy with clouds decreasing after midnight. Increasing light winds. |
| Monday | Partly cloudy in the morning with increasing high clouds lowering and thickening. Light to moderate rain and snow developing and increasing in the afternoon. Heaviest at Paradise. Moderate winds. |
Mt. Hood
| Sunday Night | Clear skies early with high clouds increasing after midnight. Increasing light to moderate winds. |
| Monday | High clouds lowering and thickening in the morning, then light to moderate rain and snow developing in the late morning hours and continuing throughout the day. Moderate winds gusting strong. |
Issued: 2:41 PM PDT Sunday, March 24, 2019
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 | 5000' | 5000' | 5500' | 5000' | 5000' | 4500' | 4500' | 5500' |
| Sunday Night | Freezing Level * | 5500' | 5500' | 5500' | 5500' | 5500' | 5000' | 5000' | 7000' |
| Monday Morning | Freezing Level * | 6500' | 5500' | 5500' | 5000' | 5000' | 6000' | 6000' | 7000' |
| Monday Afternoon | Snow Level * | 5500' | 5500' | 5000' | 5000' | 5000' | 5500' | 5000' | 5500' |
| Monday Evening | Snow Level | 4500' | 5500' | 5000' | 5000' | 5000' | 4500' | 4500' | 4500' |
| Monday Night | Snow Level | 3500' | 4000' | 4000' | 4000' | 4000' | 3500' | 3000' | 3000' |
| Tuesday Morning | Snow Level | 3000' | 2500' | 2500' | 3000' | 3000' | 2500' | 2000' | 2500' |
| Tuesday Afternoon | Snow Level | 3000' | 3000' | 3500' | 3500' | 3500' | 3500' | 3500' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 3500' |
| Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 3000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 5500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 2500' |
| Tuesday Afternoon |
Snow Level 3000' |
| Washington Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5500' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 2500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Leavenworth | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 3500' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 3000' |
| Tuesday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4500' |
| Sunday Night |
Freezing Level 5000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 3500' |
| Tuesday Morning |
Snow Level 2500' |
| Tuesday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Evening |
Snow Level 4500' |
| Sunday Night |
Freezing Level 5000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 3000' |
| Tuesday Morning |
Snow Level 2000' |
| Tuesday Afternoon |
Snow Level 3500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening |
Snow Level 5500' |
| Sunday Night |
Freezing Level 7000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 3000' |
| Tuesday Morning |
Snow Level 2500' |
| Tuesday Afternoon |
Snow Level 4000' |
* 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 | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | LT 0.10 | 0 | 0.50 - 0.75 | 0.25 |
| Washington Pass | LT 0.10 | 0 | 0.25 - 0.50 | LT 0.10 |
| Leavenworth | 0 | 0 | LT 0.25 | 0 |
| Stevens Pass | 0 | LT 0.10 | 0.25 | LT 0.10 |
| Snoqualmie Pass | 0 | LT 0.10 | 0.25 | 0 |
| Mission Ridge | 0 | LT 0.10 | LT 0.25 | 0 |
| Crystal Mt | 0 | LT 0.25 | 0.25 | 0 |
| Paradise | 0 | 0.25 | 0.25 - 0.50 | LT 0.10 |
| White Pass | 0 | LT 0.10 | 0.25 | 0 |
| Mt Hood Meadows | 0 | 0.25 - 0.50 | LT 0.25 | LT 0.10 |
| Timberline | 0 | 0.25 - 0.50 | 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | 0.50 - 0.75 |
| Sunday | 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | 0 |
| Sunday Night | LT 0.25 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0.25 |
| Sunday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0.25 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | LT 0.25 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.25 |
| Sunday Night | 0.25 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | 0.25 |
| Sunday Night | 0.25 - 0.50 |
| Sunday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0.25 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | 0.25 - 0.50 |
| Sunday Night | LT 0.25 |
| Sunday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Sunday | 0.25 - 0.50 |
| Sunday Night | 0.25 |
| Sunday | 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: 2:41 PM PDT Sunday, March 24, 2019
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 | ESE 5 - 15 |
| Sunday Night | ENE 5 - 15 | VAR 0 - 10 | ESE 5 - 15 | ESE 5 - 15 | ESE 10 - 20 |
| Monday Morning | E 10 - 20 | E 5 - 15 | E 15 - 25 | E 15 - 25 | ESE 20 - 30 |
| Monday Afternoon | SSE 15 - 25 | ESE 15 - 25 | E 15 - 25 | E 10 - 20 | SE 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ENE 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | SSE 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | VAR 0 - 10 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | ESE 15 - 25 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening | ESE 5 - 15 |
| Sunday Night | ESE 10 - 20 |
| Monday Morning | ESE 20 - 30 |
| Monday Afternoon | SE 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ENE 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | SSE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | VAR 0 - 10 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | ESE 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | ESE 5 - 15 |
| Sunday Night | ESE 10 - 20 |
| Monday Morning | ESE 20 - 30 |
| Monday Afternoon | SE 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 | |
|---|---|---|---|---|---|
| Sunday Evening | NE 5 - 15 | NNE 5 - 15 | VAR 0 - 10 | WSW 5 - 15 | SW 15 - 15 |
| Sunday Night | S 5 - 15 | SSE 5 - 15 | SSW 10 - 20 | SSW 10 - 20 | SSE 15 - 25 |
| Monday Morning | SSE 15 - 25 | SSE 15 - 25 | SSE 30 - 45 | SSE 30 - 45 | S 30 - 45 |
| Monday Afternoon | SSE 20 - 30 | SSE 25 - 35 | SSE 35 - 50 | SSE 35 - 50 | SSE 30 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | NE 5 - 15 |
| Sunday Night | S 5 - 15 |
| Monday Morning | SSE 15 - 25 |
| Monday Afternoon | SSE 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Evening | NNE 5 - 15 |
| Sunday Night | SSE 5 - 15 |
| Monday Morning | SSE 15 - 25 |
| Monday Afternoon | SSE 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | SSW 10 - 20 |
| Monday Morning | SSE 30 - 45 |
| Monday Afternoon | SSE 35 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | SSW 10 - 20 |
| Monday Morning | SSE 30 - 45 |
| Monday Afternoon | SSE 35 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | SW 15 - 15 |
| Sunday Night | SSE 15 - 25 |
| Monday Morning | S 30 - 45 |
| Monday Afternoon | SSE 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: 2:41 PM PDT Sunday, March 24, 2019
Extended Weather Synopsis for Sunday night through Sunday
Tuesday night will feature cool and mostly fair weather with the offshore trough spreading into California and Oregon. The rotating trough may start spilling moisture northward into our region as early as Wednesday morning or as late as Thursday morning, bringing our region further chances of rain and snow with the trough and associated low moving onshore on Thursday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday Night | Freezing Level | 2500' - 3500' | 3500' - 4500' | 4500' - 5500' | |
| Wednesday | Snow Level | 2000' - 4000' | 3500' - 4500' | 3500' - 4500' | |
| Wednesday Night | Snow Level | 3000' - 5000' | 4000' - 5000' | 4000' - 5000' | |
| Thursday | Snow Level | 3500' - 4500' | 3000' - 4000' | 3500' - 4500' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 2500' - 3500' |
| Wednesday |
Snow Level 2000' - 4000' |
| Wednesday Night |
Snow Level 3000' - 5000' |
| Thursday |
Snow Level 3500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 3500' - 4500' |
| Wednesday |
Snow Level 3500' - 4500' |
| Wednesday Night |
Snow Level 4000' - 5000' |
| Thursday |
Snow Level 3000' - 4000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Night |
Freezing Level 4500' - 5500' |
| Wednesday |
Snow Level 3500' - 4500' |
| Wednesday Night |
Snow Level 4000' - 5000' |
| Thursday |
Snow Level 3500' - 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Previous forecast from Mar 24, 2019
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