Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Thursday & Monday
Warm frontal moisture extending from a weak surface low off the central B.C. coast in NW flow aloft will continue to produce light to occasionally moderate precipitation mainly for the central and south Washington Cascades and the Mt. Hood area this morning. Since it's spring-time, this usual snow producing pattern will be affected by subtle day-time warming which will bump up snow levels 500-1000 ft this afternoon.
Precipitation rates should ease a notch mid-day before a trailing occluded front passes through the Cascades late afternoon, increasing precipitation coverage across the entire area and forming a Puget sound convergence zone directed toward the central Cascades. This convergence band should shift to the south Thursday night toward Paradise/Crystal area before tapering off Friday morning.
Upper level ridging will build overhead on Friday but onshore flow will keep the west slopes of the Cascades, Olympics and Mt. Hood cloudy and cool with light drizzle possible. More sunshine is likely the further east of the Cascade crest.
Weather Forecast
Hurricane Ridge
| Thursday | Light rain and snow. Slight warming trend. |
Mt. Baker
| Thursday | Chance of light rain and snow in the morning. Light rain and snow developing in the afternoon. Slight warming trend. |
Washington Pass and Leavenworth
| Thursday | Chance of light rain and snow in the morning. Light rain and snow developing in the afternoon. Slight warming trend. |
Stevens and Snoqualmie Pass
| Thursday | Light to occasionally moderate rain and snow. Slight warming trend. Light west wind in the Passes. |
Mt. Rainier, Crystal and White Pass
| Thursday | Light to occasionally moderate rain and snow in the morning, heaviest Paradise area, easing somewhat in the afternoon. Slight warming trend. |
Mt. Hood
| Thursday | Light to moderate rain and snow and windy in the morning. Winds and precipitation easing somewhat in the afternoon. |
Issued: 7:06 AM PDT Thursday, April 11, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Thursday Morning | Snow Level | 3500' | 2500' | 3000' | 3500' | 3000' | 3500' | 4000' | 4000' |
| Thursday Afternoon | Snow Level | 4500' | 4500' | 5500' | 5500' | 4500' | 4500' | 5000' | 5000' |
| Thursday Evening | Snow Level | 5000' | 4000' | 4500' | 4500' | 5000' | 5000' | 5000' | 5000' |
| Thursday Night | Snow Level | 4000' | 3500' | 3500' | 4000' | 4500' | 4500' | 4500' | 4500' |
| Friday Morning | Snow Level | 4000' | 3500' | 3500' | 4000' | 4500' | 4500' | 4500' | 4500' |
| Friday Afternoon | Snow Level | 5000' | 5000' | 6000' | 6000' | 5000' | 5000' | 5500' | 5500' |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4000' |
| Friday Morning |
Snow Level 4000' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning |
Snow Level 2500' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 4000' |
| Thursday Night |
Snow Level 3500' |
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 5000' |
| Washington Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 5500' |
| Thursday Evening |
Snow Level 4500' |
| Thursday Night |
Snow Level 3500' |
| Friday Morning |
Snow Level 3500' |
| Friday Afternoon |
Snow Level 6000' |
| Leavenworth | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 5500' |
| Thursday Evening |
Snow Level 4500' |
| Thursday Night |
Snow Level 4000' |
| Friday Morning |
Snow Level 4000' |
| Friday Afternoon |
Snow Level 6000' |
| Stevens Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 5000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning |
Snow Level 3500' |
| Thursday Afternoon |
Snow Level 4500' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 5000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Thursday Morning |
Snow Level 4000' |
| Thursday Afternoon |
Snow Level 5000' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 5500' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning |
Snow Level 4000' |
| Thursday Afternoon |
Snow Level 5000' |
| Thursday Evening |
Snow Level 5000' |
| Thursday Night |
Snow Level 4500' |
| Friday Morning |
Snow Level 4500' |
| Friday Afternoon |
Snow Level 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.
Precipitation Forecast
| Thursday | Thursday Night | Monday | |
|---|---|---|---|
| 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 | 0.25 | LT 0.25 | LT 0.10 |
| Washington Pass | LT 0.10 | LT 0.10 | 0 |
| Leavenworth | 0 | LT 0.10 | 0 |
| Stevens Pass | 0.25 | 0.25 - 0.50 | LT 0.10 |
| Snoqualmie Pass | 0.50 | 0.50 | LT 0.10 |
| Mission Ridge | LT 0.10 | 0 | 0 |
| Crystal Mt | LT 0.25 | 0.25 - 0.50 | LT 0.10 |
| Paradise | 0.50 - 0.75 | 0.50 - 0.75 | LT 0.10 |
| White Pass | 0.25 - 0.50 | 0.25 | LT 0.10 |
| Mt Hood Meadows | 0.50 - 0.75 | 1.00 | LT 0.10 |
| Timberline | 0.75 | 1.00 - 1.50 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | LT 0.25 |
| Monday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | LT 0.25 |
| Monday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | LT 0.10 |
| Monday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Thursday | 0 |
| Thursday Night | LT 0.10 |
| Monday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Thursday | 0.25 |
| Thursday Night | 0.25 - 0.50 |
| Monday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Thursday | 0.50 |
| Thursday Night | 0.50 |
| Monday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Thursday | LT 0.10 |
| Thursday Night | 0 |
| Monday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Thursday | LT 0.25 |
| Thursday Night | 0.25 - 0.50 |
| Monday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Thursday | 0.50 - 0.75 |
| Thursday Night | 0.50 - 0.75 |
| Monday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Thursday | 0.25 - 0.50 |
| Thursday Night | 0.25 |
| Monday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Thursday | 0.50 - 0.75 |
| Thursday Night | 1.00 |
| Monday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Thursday | 0.75 |
| Thursday Night | 1.00 - 1.50 |
| 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: 7:06 AM PDT Thursday, April 11, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Thursday Morning | SW 5 - 15 | SW 5 - 15 | WSW 10 - 20 | WSW 10 - 20 | W 20 - 30 |
| Thursday Afternoon | SW 10 - 20 | S 10 - 20 | SW 5 - 15 | SW 5 - 15 | SW 15 - 25 |
| Thursday Evening | WNW 5 - 15 | NW 0 - 10 | W 10 - 20 | W 10 - 20 | W 20 - 30 |
| Thursday Night | NW 5 - 15 | N 0 - 10 | NW 10 - 20 | NW 5 - 15 | WNW 15 - 25 |
| Friday Morning | VAR 0 - 10 | VAR 0 - 10 | WNW 5 - 15 | WNW 0 - 10 | WNW 10 - 20 |
| Friday Afternoon | SW 5 - 15 | SW 0 - 10 | W 5 - 15 | W 5 - 15 | W 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Thursday Evening | WNW 5 - 15 |
| Thursday Night | NW 5 - 15 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | S 10 - 20 |
| Thursday Evening | NW 0 - 10 |
| Thursday Night | N 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Thursday Morning | WSW 10 - 20 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | NW 10 - 20 |
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Thursday Morning | WSW 10 - 20 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | NW 5 - 15 |
| Friday Morning | WNW 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | SW 15 - 25 |
| Thursday Evening | W 20 - 30 |
| Thursday Night | WNW 15 - 25 |
| Friday Morning | WNW 10 - 20 |
| Friday Afternoon | W 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Thursday Evening | WNW 5 - 15 |
| Thursday Night | NW 5 - 15 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | S 10 - 20 |
| Thursday Evening | NW 0 - 10 |
| Thursday Night | N 0 - 10 |
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | WSW 10 - 20 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | NW 10 - 20 |
| Friday Morning | WNW 5 - 15 |
| Friday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | WSW 10 - 20 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | W 10 - 20 |
| Thursday Night | NW 5 - 15 |
| Friday Morning | WNW 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | SW 15 - 25 |
| Thursday Evening | W 20 - 30 |
| Thursday Night | WNW 15 - 25 |
| Friday Morning | WNW 10 - 20 |
| Friday Afternoon | W 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 | |
|---|---|---|---|---|---|
| Thursday Morning | W 10 - 20 | W 10 - 20 | W 20 - 30 | W 20 - 30 | W 30 - 40 |
| Thursday Afternoon | WSW 10 - 20 | SW 5 - 15 | W 20 - 30 | W 20 - 30 | WNW 25 - 35 |
| Thursday Evening | W 5 - 15 | W 5 - 15 | NW 15 - 25 | WNW 20 - 30 | WNW 25 - 35 |
| Thursday Night | NW 0 - 10 | NW 5 - 15 | NW 15 - 25 | NW 15 - 25 | NW 15 - 25 |
| Friday Morning | NW 5 - 15 | NW 0 - 10 | NW 15 - 25 | NW 15 - 25 | NW 15 - 25 |
| Friday Afternoon | W 10 - 20 | NW 0 - 10 | NW 15 - 25 | NW 15 - 25 | NW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | WSW 10 - 20 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | NW 0 - 10 |
| Friday Morning | NW 5 - 15 |
| Friday Afternoon | W 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | SW 5 - 15 |
| Thursday Evening | W 5 - 15 |
| Thursday Night | NW 5 - 15 |
| Friday Morning | NW 0 - 10 |
| Friday Afternoon | NW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 20 - 30 |
| Thursday Evening | NW 15 - 25 |
| Thursday Night | NW 15 - 25 |
| Friday Morning | NW 15 - 25 |
| Friday Afternoon | NW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Thursday Morning | W 20 - 30 |
| Thursday Afternoon | W 20 - 30 |
| Thursday Evening | WNW 20 - 30 |
| Thursday Night | NW 15 - 25 |
| Friday Morning | NW 15 - 25 |
| Friday Afternoon | NW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Thursday Morning | W 30 - 40 |
| Thursday Afternoon | WNW 25 - 35 |
| Thursday Evening | WNW 25 - 35 |
| Thursday Night | NW 15 - 25 |
| Friday Morning | NW 15 - 25 |
| Friday Afternoon | NW 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 10, 2019
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