Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Tuesday & Sunday
A weak front has run into a high amplitude ridge and managed to shift the upper level ridge axis east of the Cascades. Light periods of rain and snow, with mixed precipitation near the Cascade passes are expected to continue overnight. A developing wave offshore near 135W/45N will approach the Pacific Northwest overnight. The surface low should curl towards Vancouver Island early Wednesday morning...bringing an increase in precipitation intensity overnight but keeping the air mass relatively mild over the area. Easterly flow should allow for a mix of precipitation types at the passes, especially Snoqualmie Pass, before the flow becomes westerly by early to mid morning on Wednesday.
Steady rain and snow should turn to showers on Wednesday and Wednesday night with a strong cooling trend occurring Wednesday night. Winds will be strongest down near Mt. Hood, with a strong jet sagging south over northern Oregon by early Thursday morning.
Weather Forecast
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Tuesday |
Periods of light rain and snow, except mixed precipitation including freezing rain for the Cascade Passes. Mild. |
| Tuesday Night |
Moderate rain and snow Olympics spreading to the Washington Cascades in the late evening and becoming moderate to late Tuesday night. Mixed precipitation, including freezing rain, likely Cascade Passes through early Wednesday morning. Winds increasing overnight. Continued mild. |
| Wednesday Morning |
Moderate to heavy rain and snow becoming moderate to heavy showers. Windy. Snow levels becoming free-air levels near Cascade Passes mid-morning. |
| Wednesday Afternoon |
Light to moderate rain and snow showers. Gradual cooling through the day. |
| Wednesday Night |
Light to moderate rain and snow showers. Snow levels dropping further. |
East slopes of the Washington Cascades
| Tuesday |
Periods of very light snow. |
| Tuesday Night |
Light to moderate rain and snow beginning in the late evening and becoming moderate late Tuesday night. Mixed precipitation possible lower valleys. Winds increasing overnight. Becoming mild. |
| Wednesday Morning |
Moderate rain and snow becoming light to moderate showers. Snow levels becoming free-air levels in northeast Cascades late morning. Windy. |
| Wednesday Afternoon |
Light rain and snow showers. Gradual cooling through the day. |
| Wednesday Night |
Light rain and snow showers. Snow levels dropping further. |
Mt. Hood Area
| Tuesday |
Periods of light rain and snow. Mild. |
| Tuesday Night |
Moderate rain and snow increasing in the evening and becoming moderate to heavy after midnight. Winds increasing overnight. Continued mild. |
| Wednesday Morning |
Moderate to heavy rain and snow becoming moderate to heavy showers. Windy. |
| Wednesday Afternoon |
Light to moderate rain and snow showers. Gradual cooling through the day. Continued strong winds. |
| Wednesday Night |
Moderate rain and snow showers. Snow levels dropping further. |
Issued: 2:34 PM PST Tuesday, January 28, 2014
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Afternoon - Tuesday Evening | Snow Level * | 6500' | ' | ' | ' | ' | 6000' | ' | 7500' |
| Tuesday Night - Wednesday Morning | Snow Level * | 5500' | ' | ' | ' | ' | 5000' | ' | 6500' |
| Wednesday | Snow Level | 4000' | ' | ' | ' | ' | 4000' | ' | 4500' |
| Wednesday Night | Snow Level | 3000' | ' | ' | ' | ' | 3500' | ' | 3500' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level 6500' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level 5500' (Easterly Flow *) |
| Wednesday |
Snow Level 4000' |
| Wednesday Night |
Snow Level 3000' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level ' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level ' (Easterly Flow *) |
| Wednesday |
Snow Level ' |
| Wednesday Night |
Snow Level ' |
| Washington Pass | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level ' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level ' (Easterly Flow *) |
| Wednesday |
Snow Level ' |
| Wednesday Night |
Snow Level ' |
| Leavenworth | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level ' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level ' (Easterly Flow *) |
| Wednesday |
Snow Level ' |
| Wednesday Night |
Snow Level ' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level ' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level ' (Easterly Flow *) |
| Wednesday |
Snow Level ' |
| Wednesday Night |
Snow Level ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level 6000' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level 5000' (Easterly Flow *) |
| Wednesday |
Snow Level 4000' |
| Wednesday Night |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level ' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level ' (Easterly Flow *) |
| Wednesday |
Snow Level ' |
| Wednesday Night |
Snow Level ' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening |
Snow Level 7500' (Easterly Flow *) |
| Tuesday Night - Wednesday Morning |
Snow Level 6500' (Easterly Flow *) |
| Wednesday |
Snow Level 4500' |
| Wednesday Night |
Snow Level 3500' |
* 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 | |
|---|---|---|
| Hurricane Ridge | 0.25 - 0.50 | 0.25 - 0.50 |
| Mt Baker Ski Area | 0 - 0.50 | 0 - 1.00 |
| Washington Pass | 0.25 - 0.50 | 0.50 - 0.75 |
| Stevens Pass | 0.50 - 0.75 | 0 - 1.00 |
| Snoqualmie Pass | 0.50 - 0.75 | 1.00 - 1.50 |
| Mission Ridge | LT 0.10 | LT 0.25 |
| Crystal Mt | 0 - 0.50 | 0.50 - 0.75 |
| Paradise | 1.00 - 1.50 | 1.00 - 1.50 |
| White Pass | 0 - 0.75 | 0 - 1.00 |
| Mt Hood Meadows | 1.00 - 1.50 | 1.00 - 1.50 |
| Timberline | 0 - 1.50 | 0 - 1.50 |
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: 2:34 PM PST Tuesday, January 28, 2014
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 5 - 15 | --- - | SW 10 - 20 | --- - | SW 10 - 20 |
| Tuesday Night - Wednesday Morning | SW 25 - 35 | --- - | SW 20 - 30 | --- - | SW 30 - 40 |
| Wednesday Afternoon | NW 10 - 20 | --- - | WSW 30 - 40 | --- - | SW 40 - 50 |
| Wednesday Night | W 15 - 25 | --- - | WSW 15 - 30 | --- - | W 25 - 40 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 5 - 15 |
| Tuesday Night - Wednesday Morning | SW 25 - 35 |
| Wednesday Afternoon | NW 10 - 20 |
| Wednesday Night | W 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 10 - 20 |
| Tuesday Night - Wednesday Morning | SW 20 - 30 |
| Wednesday Afternoon | WSW 30 - 40 |
| Wednesday Night | WSW 15 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 10 - 20 |
| Tuesday Night - Wednesday Morning | SW 30 - 40 |
| Wednesday Afternoon | SW 40 - 50 |
| Wednesday Night | W 25 - 40 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 5 - 15 |
| Tuesday Night - Wednesday Morning | SW 25 - 35 |
| Wednesday Afternoon | NW 10 - 20 |
| Wednesday Night | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 10 - 20 |
| Tuesday Night - Wednesday Morning | SW 20 - 30 |
| Wednesday Afternoon | WSW 30 - 40 |
| Wednesday Night | WSW 15 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | SW 10 - 20 |
| Tuesday Night - Wednesday Morning | SW 30 - 40 |
| Wednesday Afternoon | SW 40 - 50 |
| Wednesday Night | W 25 - 40 |
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 | |
|---|---|---|---|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - | --- - | W 15 - 25 | --- - | WSW 25 - 35 |
| Tuesday Night - Wednesday Morning | --- - | --- - | WSW 45 - 55 | --- - | SW 45 - 55 |
| Wednesday Afternoon | --- - | --- - | W 35 - 45 | --- - | WSW 55 - 65 |
| Wednesday Night | --- - | --- - | W 30 - 40 | --- - | W 35 - 45 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | W 15 - 25 |
| Tuesday Night - Wednesday Morning | WSW 45 - 55 |
| Wednesday Afternoon | W 35 - 45 |
| Wednesday Night | W 30 - 40 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | --- - |
| Tuesday Night - Wednesday Morning | --- - |
| Wednesday Afternoon | --- - |
| Wednesday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Afternoon - Tuesday Evening | WSW 25 - 35 |
| Tuesday Night - Wednesday Morning | SW 45 - 55 |
| Wednesday Afternoon | WSW 55 - 65 |
| Wednesday Night | W 35 - 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: 2:34 PM PST Tuesday, January 28, 2014
Extended Weather Synopsis for Sunday night through Sunday
Cooler weather will settle in for Thursday through Saturday. Northerly flow will begin to take over Thursday as a trough digs down toward us from B.C and Alberta. A surface low should develop somewhere off of Vancouver Island and the Washington Coast Thursday...and help direct showers back over the west slopes of the Cascades and Mt. Hood. The low will pull further south and offshore on Friday...with Washington and Oregon left in no-man's land of the split flow by Saturday. This should lead to at least partial clearing and diminished shower activity.
Extended Weather
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes and Mt. Hood Area
Light to moderate snow showers. Cooler.
Light snow showers diminishing with partial clearing
Partly cloudy with isolated showers.
East slopes of the Washington Cascades
Light snow showers, heaviest near the Cascade crest. Cooler.
Scattered light snow showers diminishing with partial clearing.
Partly cloudy.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday - Friday | Snow Level | ' - ' | 1500' - 2500' | 2000' - 3000' | |
| Friday Night - Saturday | Freezing Level | ' - ' | 2000' - 3000' | 2500' - 3500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday - Friday |
Snow Level ' - ' |
| Friday Night - Saturday |
Freezing Level ' - ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday - Friday |
Snow Level 1500' - 2500' |
| Friday Night - Saturday |
Freezing Level 2000' - 3000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday - Friday |
Snow Level 2000' - 3000' |
| Friday Night - Saturday |
Freezing Level 2500' - 3500' |
* 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 Jan 28, 2014
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