Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Monday
Although it's the last morning mountain weather forecast of the 2018-2019 winter season, the mountains are still experiencing winter-like conditions. Cool, westerly flow and snow shower activity lingers in a subtle trough behind a departed frontal system. This flow pattern should continue to produce light accumulating snow for most areas near and west of the Cascade Crest, with minimal spillover onto the east slopes. Snow shower and weak convergence activity has been focused from Snoqualmie Pass northward Sunday morning. Snow showers should increase throughout the range and spread into areas further south as the day progresses with weak convergence in some areas. Models have been showing very little range in diurnal temperatures as a cool air mass continues to spill into the region. However, it's mid-April, so we bumped up snow levels to reflect the reality of increased solar radiation in the afternoon.
The moist W flow should decrease Monday night. Precipitation should decrease in coverage, but a moderate convergence zone is anticipated to develop in the central Cascades, possibly between Stevens and Snoqualmie Passes which could bring accumulating snow to Snoqualmie or Stevens Pass. Snow shower activity is expected to generally taper off by Monday morning.
On Monday, an open trough will move into the Oregon near-shore waters, spreading light snow to the Mt. Hood and Mt. St. Helens areas by Monday afternoon with high clouds increasing as far north as Snoqualmie Pass. Elsewhere, expect mostly sunny weather with light winds and variable or weak offshore flow.
Weather Forecast
Hurricane Ridge
| Sunday | Light snow showers, heavier in convective at times. Cool. Light winds. |
Mt. Baker
| Sunday | Light snow showers. Cool. Decreasing light to moderate winds. |
Washington Pass and Leavenworth
| Sunday | Light snow showers closer to the Cascade Crest, particularly in the central Cascades where convergence bands should spill over. Cool. Light winds. |
Stevens and Snoqualmie Pass
| Sunday | Light snow showers, heaviest in convergence. Expect some convection with showers heaviest and most frequent. Cool. Moderate W wind through the gaps with moderate winds at 5000 ft decreasing in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Sunday | Light snow showers, heaviest in the afternoon. Cool. Light winds. |
Mt. Hood
| Sunday | Light snow showers. Cool. Moderate 5000 ft winds, gusting strong at higher elevations. |
Issued: 7:02 AM PDT Sunday, April 14, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Morning | Snow Level | 2500' | 2000' | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' |
| Sunday Afternoon | Snow Level | 3000' | 3000' | 3500' | 3500' | 3000' | 3000' | 3500' | 3500' |
| Sunday Evening | Snow Level | 2500' | 2500' | 3000' | 3500' | 3000' | 2500' | 3000' | 3500' |
| Sunday Night | Snow Level | 2500' | 2000' | 2000' | 2500' | 2500' | 2500' | 2500' | 2500' |
| Monday Morning | Snow Level | 2500' | 2000' | 2000' | 2000' | 2000' | 2000' | 2500' | 2500' |
| Monday Afternoon | Snow Level | 3000' | 3500' | 4000' | 4000' | 4000' | 3500' | 4000' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 3000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 4000' |
| Leavenworth | Elevation |
|---|---|
| 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 4000' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Evening |
Snow Level 2500' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2000' |
| Monday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3000' |
| Sunday Night |
Snow Level 2500' |
| Monday Morning |
Snow Level 2500' |
| Monday Afternoon |
Snow Level 4000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3500' |
| Sunday Evening |
Snow Level 3500' |
| 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
| Sunday | Sunday Night | Monday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | LT 0.10 | LT 0.10 |
| Mt Baker Ski Area | 0.25 | LT 0.25 | 0 |
| Washington Pass | LT 0.10 | LT 0.10 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0.25 | LT 0.25 | 0 |
| Snoqualmie Pass | 0.25 | LT 0.25 | 0 |
| Mission Ridge | LT 0.10 | 0 | 0 |
| Crystal Mt | LT 0.25 | LT 0.10 | 0 |
| Paradise | 0.25 | LT 0.25 | 0 |
| White Pass | LT 0.25 | LT 0.25 | 0 |
| Mt Hood Meadows | 0 | LT 0.25 | LT 0.25 |
| Timberline | 0.25 - 0.50 | LT 0.25 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | LT 0.25 |
| Sunday Night | LT 0.10 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.25 |
| Monday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | 0 |
| Monday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.25 |
| Monday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.25 |
| Monday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Monday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | LT 0.25 |
| Sunday Night | LT 0.10 |
| Monday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.25 |
| Monday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | LT 0.25 |
| Sunday Night | LT 0.25 |
| Monday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 0 |
| Sunday Night | LT 0.25 |
| Monday | LT 0.25 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | 0.25 - 0.50 |
| Sunday 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: 7:02 AM PDT Sunday, April 14, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 | WSW 10 - 20 | W 15 - 25 |
| Sunday Afternoon | WSW 5 - 15 | SW 5 - 15 | W 10 - 20 | WSW 10 - 20 | WSW 15 - 25 |
| Sunday Evening | WSW 5 - 15 | SW 5 - 15 | WSW 10 - 20 | WSW 5 - 15 | W 10 - 20 |
| Sunday Night | VAR 0 - 10 | SW 5 - 15 | WSW 5 - 15 | WSW 5 - 15 | WSW 10 - 20 |
| Monday Morning | ESE 5 - 15 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | S 0 - 10 |
| Monday Afternoon | E 5 - 15 | VAR 0 - 10 | E 5 - 15 | E 0 - 10 | E 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 5 - 15 |
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | VAR 0 - 10 |
| Monday Morning | ESE 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | SW 5 - 15 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | W 10 - 20 |
| Sunday Evening | WSW 10 - 20 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | E 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | E 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Evening | W 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Monday Morning | S 0 - 10 |
| Monday Afternoon | E 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 5 - 15 |
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | VAR 0 - 10 |
| Monday Morning | ESE 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | SW 5 - 15 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | SW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | WSW 15 - 25 |
| Sunday Afternoon | W 10 - 20 |
| Sunday Evening | WSW 10 - 20 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | E 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | WSW 10 - 20 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Evening | WSW 5 - 15 |
| Sunday Night | WSW 5 - 15 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | E 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 15 - 25 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Evening | W 10 - 20 |
| Sunday Night | WSW 10 - 20 |
| Monday Morning | S 0 - 10 |
| Monday Afternoon | E 5 - 15 |
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 Morning | WSW 20 - 30 | W 30 - 45 | W 25 - 35 | W 30 - 45 | W 30 - 45 |
| Sunday Afternoon | SW 15 - 25 | WSW 10 - 20 | WSW 20 - 30 | WSW 15 - 25 | WSW 20 - 30 |
| Sunday Evening | WSW 15 - 25 | WSW 15 - 25 | WSW 25 - 35 | WSW 20 - 30 | WSW 25 - 35 |
| Sunday Night | WSW 10 - 20 | W 10 - 20 | WSW 15 - 25 | W 15 - 25 | WSW 25 - 35 |
| Monday Morning | W 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 | SW 10 - 20 |
| Monday Afternoon | SE 5 - 15 | SE 5 - 15 | SSE 5 - 15 | SSE 5 - 15 | S 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | SW 15 - 25 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | WSW 10 - 20 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | SE 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | W 30 - 45 |
| Sunday Afternoon | WSW 10 - 20 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | W 10 - 20 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | SE 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | W 25 - 35 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 25 - 35 |
| Sunday Night | WSW 15 - 25 |
| Monday Morning | VAR 0 - 10 |
| Monday Afternoon | SSE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | W 30 - 45 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Evening | WSW 20 - 30 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | SSE 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 30 - 45 |
| Sunday Afternoon | WSW 20 - 30 |
| Sunday Evening | WSW 25 - 35 |
| Sunday Night | WSW 25 - 35 |
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | S 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Apr 13, 2019
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