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 Saturday
Mild weather is forecast throughout the period with freezing levels near Cascade Crest level. The Pacific Northwest remains under a weak ridge Sunday evening before some more organized weather systems start moving into the region. The ridge should generally help minimize the evening convection, with scattered clouds over the topography fading quickly during the evening hours. High clouds are expected to increase overnight ahead of an open upper low, moving eastward to about 850 miles off the northern California coastline by the end of the day Sunday.
The upper low will move into the near-shore waters off the Oregon coast during the day on Tuesday, spreading light rain and high elevation snow along with moderate wind into the Mt. Hood area beginning early Monday morning; this should spread into the southern Washington Cascades during the afternoon. Recent model runs have been keeping the low slightly further south, so moisture amounts have been decreasing in quantity and northward extent with each progressive model run.
The upper low is expected to move SE to near the California/Oregon border by Tuesday morning, keeping the light precipitation in the same areas Monday night through the Tuesday, with gradually decreasing winds.
Snow levels will remain relatively consistent around 6000 ft.
Weather Forecast
Hurricane Ridge
| Sunday Night | Increasing high clouds. Mild. Light and variable winds becoming light. |
| Monday | High clouds lowering and thickening. Mild. Light winds. |
Mt. Baker
| Sunday Night | Mostly clear with some thin high clouds. Mild. Light and variable winds becoming light. |
| Monday | Mostly clear with some thin high clouds. Mild. Light winds. |
Washington Pass and Leavenworth
| Sunday Night | Mostly clear with some thin high clouds. Mild. Light and variable winds becoming light. |
| Monday | Mostly clear with some thin high clouds in the north; high clouds lowering and thickening in the south. Mild. Light winds. |
Stevens and Snoqualmie Pass
| Sunday Night | Mostly clear with some thin high clouds. Mild. Light and variable winds becoming light. |
| Monday | A mix of mid and high-level clouds; cloudier at Snoqualmie than Stevens Pass. Mild. Light to moderate winds. |
Mt. Rainier, Crystal and White Pass
| Sunday Night | Increasing high clouds. Mild. Light and variable winds becoming light. |
| Monday | Clouds lowering and thickening in the morning with light rain or high elevation snow developing. The most accumulation at Mt. St. Helens, Mt. Adams, and Paradise. Mild. Light to moderate winds. |
Mt. Hood
| Sunday Night | High clouds lowering and thickening. Mild. Light and variable winds becoming light. |
| Monday | Increasing light rain and high elevation snow. Mild. Moderate winds. |
Issued: 2:43 PM PDT Sunday, March 31, 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 | Freezing Level | 6500' | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 7500' |
| Sunday Night | Freezing Level * | 6500' | 6500' | 5500' | 7000' | 6500' | 7000' | 7000' | 7500' |
| Monday Morning | Snow Level * | 6000' | 5500' | 5000' | 5500' | 6000' | 6000' | 6000' | 6500' |
| Monday Afternoon | Snow Level * | 6000' | 6000' | 6000' | 5500' | 6000' | 6000' | 6000' | 6000' |
| Monday Evening | Snow Level * | 6000' | 6500' | 6500' | 6000' | 6000' | 6000' | 6000' | 6000' |
| Monday Night | Snow Level * | 6500' | 6000' | 5000' | 6000' | 6000' | 6000' | 6000' | 6000' |
| Tuesday Morning | Snow Level * | 6000' | 5500' | 5000' | 5500' | 5500' | 6000' | 5500' | 6000' |
| Tuesday Afternoon | Snow Level * | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 6500' |
| Sunday Night |
Freezing Level 6500' (Easterly Flow *) |
| Monday Morning |
Snow Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 6500' (Easterly Flow *) |
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6500' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 5500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 5500' (Easterly Flow *) |
| Monday Morning |
Snow Level 5000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6500' (Easterly Flow *) |
| Monday Night |
Snow Level 5000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 5000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 7000' (Easterly Flow *) |
| Monday Morning |
Snow Level 5500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 5500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 6500' (Easterly Flow *) |
| Monday Morning |
Snow Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 5500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 7000' (Easterly Flow *) |
| Monday Morning |
Snow Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7000' |
| Sunday Night |
Freezing Level 7000' (Easterly Flow *) |
| Monday Morning |
Snow Level 6000' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 5500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 7500' |
| Sunday Night |
Freezing Level 7500' (Easterly Flow *) |
| Monday Morning |
Snow Level 6500' (Easterly Flow *) |
| Monday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Monday Evening |
Snow Level 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 5500' (Easterly Flow *) |
* 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 | Saturday | Saturday Night | Saturday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 | LT 0.10 |
| Paradise | 0 | LT 0.10 | LT 0.10 | LT 0.25 |
| White Pass | 0 | 0 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | 0 | 0.25 - 0.50 | 0.25 - 0.50 | 0.25 |
| Timberline | 0 | 0.25 - 0.50 | 0.25 - 0.50 | 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | 0 |
| Saturday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | LT 0.10 |
| Saturday Night | LT 0.10 |
| Saturday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0 |
| Saturday Night | LT 0.10 |
| Saturday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0.25 - 0.50 |
| Saturday Night | 0.25 - 0.50 |
| Saturday | 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Saturday | 0.25 - 0.50 |
| Saturday Night | 0.25 - 0.50 |
| Saturday | 0.25 |
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: 2:43 PM PDT Sunday, March 31, 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 | VAR 0 - 10 |
| Sunday Night | E 5 - 15 | ENE 5 - 15 | E 5 - 15 | ESE 5 - 15 | ESE 5 - 15 |
| Monday Morning | E 5 - 15 | ENE 5 - 15 | E 10 - 20 | E 10 - 20 | E 15 - 25 |
| Monday Afternoon | E 5 - 15 | ENE 5 - 15 | E 10 - 20 | E 10 - 20 | E 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | E 5 - 15 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ENE 5 - 15 |
| Monday Morning | ENE 5 - 15 |
| Monday Afternoon | ENE 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | E 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | E 5 - 15 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ENE 5 - 15 |
| Monday Morning | ENE 5 - 15 |
| Monday Afternoon | ENE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | E 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 15 - 25 |
| Monday Afternoon | E 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Evening | VAR 0 - 10 | VAR 0 - 10 | WSW 5 - 15 | SW 5 - 15 | SW 15 - 25 |
| Sunday Night | E 5 - 15 | ESE 5 - 15 | SSE 5 - 15 | S 5 - 15 | S 10 - 20 |
| Monday Morning | ESE 5 - 15 | E 5 - 15 | ESE 10 - 20 | ESE 10 - 20 | SSW 10 - 20 |
| Monday Afternoon | E 10 - 20 | ENE 5 - 15 | ESE 10 - 20 | ESE 15 - 25 | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | E 5 - 15 |
| Monday Morning | ESE 5 - 15 |
| Monday Afternoon | E 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Evening | VAR 0 - 10 |
| Sunday Night | ESE 5 - 15 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | ENE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | SSE 5 - 15 |
| Monday Morning | ESE 10 - 20 |
| Monday Afternoon | ESE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | SW 5 - 15 |
| Sunday Night | S 5 - 15 |
| Monday Morning | ESE 10 - 20 |
| Monday Afternoon | ESE 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | SW 15 - 25 |
| Sunday Night | S 10 - 20 |
| Monday Morning | SSW 10 - 20 |
| Monday Afternoon | SW 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: 2:43 PM PDT Sunday, March 31, 2019
Extended Weather Synopsis for Saturday night through Saturday
As the upper low and associated trough exit to the east, a surface low should track north of the the Oregon and Washington coastlines Tuesday night, spreading light to occasionally moderate rain and snow throughout the Cascades and Olympics with moderate rain and high elevation snow focusing on the Mt. Baker area as the low is forecast to move onshore in SW British Columbia on Wednesday. Lingering showers should decrease Wednesday night.
On the heels of the previous system, a S-to-N-tracking low offshore is forecast to bring a moderate front into the region, which will start to lower snow levels across the region and should bring some rain and snow.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday Night | Snow Level | 6000' - 7000' | 5500' - 6500' | 5500' - 6500' | |
| Wednesday | Snow Level | 4500' - 5500' | 4500' - 5500' | 4500' - 5500' | |
| Wednesday Night | Snow Level | 4000' - 5000' | 4000' - 5000' | 4500' - 5500' | |
| Thursday | Snow Level | 3500' - 4500' | 3500' - 4500' | 4500' - 5500' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Night |
Snow Level 6000' - 7000' |
| Wednesday |
Snow Level 4500' - 5500' |
| Wednesday Night |
Snow Level 4000' - 5000' |
| Thursday |
Snow Level 3500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Night |
Snow Level 5500' - 6500' |
| Wednesday |
Snow Level 4500' - 5500' |
| Wednesday Night |
Snow Level 4000' - 5000' |
| Thursday |
Snow Level 3500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Night |
Snow Level 5500' - 6500' |
| Wednesday |
Snow Level 4500' - 5500' |
| Wednesday Night |
Snow Level 4500' - 5500' |
| Thursday |
Snow Level 4500' - 5500' |
* 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 31, 2019
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.