Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Saturday night through Monday
Winter-like weather continues through the weekend with a pattern for modest post-frontal snow production in place with W flow and cooling aloft. On Saturday afternoon a front is crossing western Washington, bringing winds ahead of it, a slight bump in temperatures, moderate snow to some locations. The front should pass most areas of the Cascades by the end of the day on Saturday. Saturday night, precipitation should become showery winds will shift WSW. Cooler air will arrive with snow levels dropping to well below Snoqualmie Pass level. Post-frontal snow showers will be relatively sustained along the west slopes of Cascades with convergence bands of snow forming from around Stevens Pass to the Mountain loop area from late evening on Saturday through the day on Sunday with little change in the overall pattern as the upper trough skirts to the north of the area through British Columbia.
The moist westerly flow is expected to gradually decrease late Sunday through Sunday night with light shower activity decreasing through the period.
On Monday, a weak open low will move toward Oregon, leaving most areas under mostly dry skies with increased cloud cover and some light snow showers in the southern Washington and Mt. Hood Cascades.
Temperatures should remain below seasonal norms throughout the forecast period.
Weather Forecast
Hurricane Ridge
| Saturday Night | Cloudy with slightly increasing light snow showers. Cool. Moderate winds. |
| Sunday | Cloudy with light showers. Cool. Light to moderate winds. |
Mt. Baker
| Saturday Night | Light to occasionally moderate snow showers. Cool. Moderate winds. |
| Sunday | Light snow showers. Cool. Light to moderate winds. |
Washington Pass and Leavenworth
| Saturday Night | Light snow showers near the Cascade Crest with clearer skies possible away from the Cascade Crest. Cool. Moderate winds. |
| Sunday | Mostly cloudy near the Cascade Crest with periods of light snow showers and sun breaks further east. Cool. Moderate winds. |
Stevens and Snoqualmie Pass
| Saturday Night | Light to moderate snow showers (heaviest in convergence; most likely developing in the Stevens Pass area. Moderate to strong 5000 ft winds with moderate W winds at pass level. |
| Sunday | Light snow showers, heaviest in convergence near or just north of Stevens Pass. Cool. Light winds. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | Moderate snow early at Paradise will decrease and become light snow showers; Light snow showers for White Pass; very light snow showers generally at Crystal. Cool. Moderate winds. |
| Sunday | Light snow or snow showers, heaviest at Paradise with Crystal partially flow-blocked. Cool. Light to moderate winds. |
Mt. Hood
| Saturday Night | Moderate snow showers in the evening becoming light after midnight. Cool. Strong winds. |
| Sunday | Increasing light snow showers. Cool. Moderate winds in the morning becoming light to moderate. |
Issued: 2:47 PM PDT Saturday, April 13, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Evening | Snow Level | 3000' | 3500' | 4000' | 4500' | 4000' | 3500' | 4000' | 4500' |
| Saturday Night | Snow Level | 2500' | 2500' | 2500' | 2500' | 2500' | 2000' | 2500' | 2500' |
| Sunday Morning | Snow Level | 2500' | 2000' | 2500' | 2500' | 2000' | 2000' | 2000' | 2000' |
| Sunday Afternoon | Snow Level | 2500' | 2500' | 3500' | 3500' | 3000' | 2500' | 2500' | 3000' |
| Sunday Evening | Snow Level | 2500' | 2500' | 3500' | 3500' | 3000' | 2500' | 3000' | 3000' |
| Sunday Night | Snow Level | 2000' | 1500' | 2000' | 2500' | 2000' | 2000' | 2000' | 2500' |
| Monday Morning | Snow Level | 2000' | 1500' | 2000' | 2000' | 2000' | 2000' | 2000' | 2500' |
| Monday Afternoon | Snow Level | 2500' | 3000' | 4000' | 3500' | 3500' | 3500' | 4000' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Snow Level 3000' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Snow Level 3500' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 1500' |
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 3000' |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4500' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3500' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Snow Level 3500' |
| Saturday Night |
Snow Level 2000' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4000' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 2500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 4000' |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Snow Level 4500' |
| Saturday Night |
Snow Level 2500' |
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2500' |
| Monday 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
| Saturday Night | Monday | Monday Night | Monday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | LT 0.25 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | 0.25 - 0.50 | LT 0.25 | LT 0.10 | 0 |
| Washington Pass | LT 0.25 | LT 0.10 | 0 | 0 |
| Leavenworth | LT 0.10 | 0 | 0 | 0 |
| Stevens Pass | 0.25 - 0.50 | 0.25 | LT 0.25 | 0 |
| Snoqualmie Pass | 0.25 | 0.25 | 0.25 | 0 |
| Mission Ridge | LT 0.10 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Paradise | 0.25 | 0.25 | LT 0.25 | LT 0.10 |
| White Pass | 0.25 | LT 0.25 | LT 0.25 | LT 0.10 |
| Mt Hood Meadows | 0.25 - 0.50 | LT 0.25 | LT 0.25 | LT 0.25 |
| Timberline | 0.25 - 0.50 | 0.25 | LT 0.25 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 - 0.50 |
| Monday | LT 0.25 |
| Monday Night | LT 0.10 |
| Monday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.25 |
| Monday | LT 0.10 |
| Monday Night | 0 |
| Monday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Monday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 - 0.50 |
| Monday | 0.25 |
| Monday Night | LT 0.25 |
| Monday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Monday | 0.25 |
| Monday Night | 0.25 |
| Monday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Monday | 0 |
| Monday Night | 0 |
| Monday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | LT 0.10 |
| Monday | LT 0.10 |
| Monday Night | LT 0.10 |
| Monday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Monday | 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 |
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 - 0.50 |
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday Night | 0.25 - 0.50 |
| Monday | 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 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: 2:47 PM PDT Saturday, April 13, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | WSW 20 - 30 | WSW 20 - 30 | WSW 25 - 35 | WSW 20 - 30 | WSW 30 - 45 |
| Saturday Night | WSW 20 - 30 | SW 20 - 30 | WSW 25 - 35 | WSW 20 - 30 | WSW 25 - 35 |
| Sunday Morning | WSW 10 - 20 | SW 10 - 20 | WSW 15 - 25 | WSW 10 - 20 | WSW 15 - 25 |
| Sunday Afternoon | WSW 10 - 20 | SW 10 - 20 | WSW 15 - 25 | WSW 10 - 20 | WSW 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | WSW 25 - 35 |
| Saturday Night | WSW 25 - 35 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | WSW 30 - 45 |
| Saturday Night | WSW 25 - 35 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | SW 20 - 30 |
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | WSW 25 - 35 |
| Saturday Night | WSW 25 - 35 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | WSW 20 - 30 |
| Saturday Night | WSW 20 - 30 |
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | WSW 30 - 45 |
| Saturday Night | WSW 25 - 35 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 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 | |
|---|---|---|---|---|---|
| Saturday Evening | SW 25 - 35 | WSW 35 - 50 | W 35 - 50 | W 40 - 60 | WSW 45 - 65 |
| Saturday Night | WSW 25 - 35 | W 40 - 60 | W 30 - 45 | W 35 - 50 | W 45 - 65 |
| Sunday Morning | WSW 15 - 25 | W 20 - 30 | W 20 - 30 | W 20 - 30 | W 30 - 45 |
| Sunday Afternoon | WSW 15 - 25 | WSW 15 - 25 | WSW 20 - 30 | WSW 15 - 25 | WSW 20 - 30 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | SW 25 - 35 |
| Saturday Night | WSW 25 - 35 |
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | WSW 35 - 50 |
| Saturday Night | W 40 - 60 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | WSW 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 35 - 50 |
| Saturday Night | W 30 - 45 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | WSW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | W 40 - 60 |
| Saturday Night | W 35 - 50 |
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | WSW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | WSW 45 - 65 |
| Saturday Night | W 45 - 65 |
| Sunday Morning | W 30 - 45 |
| Sunday Afternoon | WSW 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.
Issued: 2:47 PM PDT Saturday, April 13, 2019
Extended Weather Synopsis for Monday night through Monday
The weak trough should drift SE Monday night allowing the southern Cascades to temporarily mostly dry out. A weak frontal system is expected to arrive in the area late Tuesday into Tuesday night, bringing light rain and snow at warmer temperatures and higher snow levels. The weak system is expected to depart late in the day with a stronger system offshore.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Snow Level | 3000' - 4000' | 3500' - 4500' | 3500' - 3500' | |
| Tuesday | Snow Level | 3000' - 4000' | 3000' - 4000' | 3500' - 4500' | |
| Tuesday Night | Snow Level | 3500' - 4500' | 4000' - 5000' | 4000' - 5000' | |
| Wednesday | Snow Level | 3500' - 4500' | 3500' - 4500' | 4500' - 6500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Snow Level 3000' - 4000' |
| Tuesday |
Snow Level 3000' - 4000' |
| Tuesday Night |
Snow Level 3500' - 4500' |
| Wednesday |
Snow Level 3500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Snow Level 3500' - 4500' |
| Tuesday |
Snow Level 3000' - 4000' |
| Tuesday Night |
Snow Level 4000' - 5000' |
| Wednesday |
Snow Level 3500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Snow Level 3500' - 3500' |
| Tuesday |
Snow Level 3500' - 4500' |
| Tuesday Night |
Snow Level 4000' - 5000' |
| Wednesday |
Snow Level 4500' - 6500' |
* 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 13, 2019
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