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 & Thursday
A warm front has pushed through our area and continued light snow in the central and north WA Cascades from overnight. Snow levels should continue to slowly rise through the late afternoon and early evening from Mt. Hood to around Snoqualmie Pass although even stations further north are seeing a bump in temperatures. Weak easterly flow has begun in Snoqualmie and Stevens Passes insulating these locations from much of a rise. Precipitation should increase in the late afternoon and early evening hours before the cold front comes through the area this evening with some light rain and snow eventually reaching Mt. Hood.
Cold high pressure over the Canadian Rockies should slide south and west tonight and strengthen a period of easterly offshore flow for the Cascade Passes. A large west to east temperature gradient should develop over Washington State through early next week. Snow levels near the Cascade Passes will remain quite cool on Monday while free-air snow levels over the Olympics rise to around 5000 or 6000 feet. Showers behind the frontal system should wind down overnight. A more disorganized frontal system should lift over the area Monday afternoon and evening bringing another round of light precipitation.
Weather Forecast
Olympics, Washington Cascades near and west of the crest including Stevens, Snoqualmie, and White Passes
| Sunday Afternoon - Sunday Evening |
Light rain or snow increasing and becoming occasionally moderate in the mid-afternoon and spreading to the south Washington Cascades during the late afternoon. Gradual warming mainly Olympics and Snoqualmie Pass and south. |
| Sunday Night - Monday Morning |
Mostly cloudy with light rain or snow showers. |
| Monday Afternoon - Monday Night |
Periods of light rain and snow tapering off after midnight. Gradual warming away from the Cascade Passes. |
East slopes of the Washington Cascades
| Sunday Afternoon - Sunday Evening |
Light snow increasing and becoming occasionally moderate near the crest in the mid-afternoon and spreading to the southeast Washington Cascades during the late afternoon. Gradual warming southeast Cascades. |
| Sunday Night - Monday Morning |
Mostly cloudy with light snow showers. |
| Monday Afternoon - Monday Night |
Mostly cloudy with periods of light snow tapering off after midnight. |
Mt. Hood Area
| Sunday Afternoon |
Partly to mostly cloudy. Slight warming. |
| Sunday Night |
Light rain or snow increasing and becoming occasionally moderate in the early evening. Gradual warming overnight. |
| Monday Morning |
Mostly cloudy with light rain or snow showers. |
| Monday Afternoon - Monday Night |
Mostly cloudy with periods of light rain and snow. |
Issued: 1:27 PM PST Sunday, February 23, 2014
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Mid-day | Snow Level | 2500' | ' | ' | ' | ' | 2500' | ' | 4000' |
| Sunday Afternoon | Snow Level | 2000' | ' | ' | ' | ' | 3000' | ' | 4500' |
| Sunday Night | Snow Level * | 2500' | ' | ' | ' | ' | 2000' | ' | 6000' |
| Monday | Snow Level * | 5000' | ' | ' | ' | ' | 2000' | ' | 6500' |
| Monday Night | Snow Level * | 7000' | ' | ' | ' | ' | 4000' | ' | 7000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Night |
Snow Level 2500' (Easterly Flow *) |
| Monday |
Snow Level 5000' (Easterly Flow *) |
| Monday Night |
Snow Level 7000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Monday |
Snow Level ' (Easterly Flow *) |
| Monday Night |
Snow Level ' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Monday |
Snow Level ' (Easterly Flow *) |
| Monday Night |
Snow Level ' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Monday |
Snow Level ' (Easterly Flow *) |
| Monday Night |
Snow Level ' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Monday |
Snow Level ' (Easterly Flow *) |
| Monday Night |
Snow Level ' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 3000' |
| Sunday Night |
Snow Level 2000' (Easterly Flow *) |
| Monday |
Snow Level 2000' (Easterly Flow *) |
| Monday Night |
Snow Level 4000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level ' |
| Sunday Afternoon |
Snow Level ' |
| Sunday Night |
Snow Level ' (Easterly Flow *) |
| Monday |
Snow Level ' (Easterly Flow *) |
| Monday Night |
Snow Level ' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Mid-day |
Snow Level 4000' |
| Sunday Afternoon |
Snow Level 4500' |
| Sunday Night |
Snow Level 6000' (Easterly Flow *) |
| Monday |
Snow Level 6500' (Easterly Flow *) |
| Monday Night |
Snow Level 7000' (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
| Thursday | Thursday | |
|---|---|---|
| Hurricane Ridge | 0.25 - 0.50 | 0.25 - 0.50 |
| Mt Baker Ski Area | 0.50 - 0.75 | LT 0.25 |
| Washington Pass | 0.50 - 0.75 | LT 0.25 |
| Stevens Pass | 0 - 0.75 | 0.25 - 0.50 |
| Snoqualmie Pass | 0 - 0.75 | 0.25 - 0.50 |
| Mission Ridge | 0.25 - 0.50 | LT 0.25 |
| Crystal Mt | LT 0.25 | LT 0.25 |
| Paradise | 0 - 0.50 | 0 - 0.50 |
| White Pass | LT 0.25 | LT 0.25 |
| Mt Hood Meadows | 0.25 - 0.50 | 0.25 - 0.50 |
| Timberline | 0.25 - 0.50 | 0.25 - 0.50 |
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: 1:27 PM PST Sunday, February 23, 2014
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Afternoon - Sunday Evening | SW 10 - 20 | --- - | SW 15 - 25 | --- - | SW 10 - 20 |
| Sunday Evening | SW 5 - 15 | --- - | SW 15 - 25 | --- - | WSW 15 - 25 |
| Sunday Night - Monday Mid-day | SW 5 - 15 | --- - | SSE 5 - 15 | --- - | SW 5 - 15 |
| Monday Afternoon - Monday Evening | S 5 - 15 | --- - | ESE 10 - 20 | --- - | S 5 - 15 |
| Monday Night | SSE 5 - 15 | --- - | ESE 20 - 30 | --- - | E 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 10 - 20 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night - Monday Mid-day | SW 5 - 15 |
| Monday Afternoon - Monday Evening | S 5 - 15 |
| Monday Night | SSE 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Afternoon - Sunday Evening | --- - |
| Sunday Evening | --- - |
| Sunday Night - Monday Mid-day | --- - |
| Monday Afternoon - Monday Evening | --- - |
| Monday Night | --- - |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 15 - 25 |
| Sunday Evening | SW 15 - 25 |
| Sunday Night - Monday Mid-day | SSE 5 - 15 |
| Monday Afternoon - Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 20 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Afternoon - Sunday Evening | --- - |
| Sunday Evening | --- - |
| Sunday Night - Monday Mid-day | --- - |
| Monday Afternoon - Monday Evening | --- - |
| Monday Night | --- - |
| Mt. Hood | Elevation |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 10 - 20 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night - Monday Mid-day | SW 5 - 15 |
| Monday Afternoon - Monday Evening | S 5 - 15 |
| Monday Night | E 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 10 - 20 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night - Monday Mid-day | SW 5 - 15 |
| Monday Afternoon - Monday Evening | S 5 - 15 |
| Monday Night | SSE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Evening | --- - |
| Sunday Evening | --- - |
| Sunday Night - Monday Mid-day | --- - |
| Monday Afternoon - Monday Evening | --- - |
| Monday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 15 - 25 |
| Sunday Evening | SW 15 - 25 |
| Sunday Night - Monday Mid-day | SSE 5 - 15 |
| Monday Afternoon - Monday Evening | ESE 10 - 20 |
| Monday Night | ESE 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Evening | --- - |
| Sunday Evening | --- - |
| Sunday Night - Monday Mid-day | --- - |
| Monday Afternoon - Monday Evening | --- - |
| Monday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Evening | SW 10 - 20 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night - Monday Mid-day | SW 5 - 15 |
| Monday Afternoon - Monday Evening | S 5 - 15 |
| Monday Night | E 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 | |
|---|---|---|---|---|---|
| Sunday Afternoon - Sunday Night | --- - | --- - | WNW 25 - 35 | --- - | WNW 25 - 40 |
| Monday | --- - | --- - | WNW 15 - 25 | --- - | WNW 15 - 25 |
| Monday Night | --- - | --- - | WNW 5 - 15 | --- - | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Night | --- - |
| Monday | --- - |
| Monday Night | --- - |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Night | --- - |
| Monday | --- - |
| Monday Night | --- - |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Night | WNW 25 - 35 |
| Monday | WNW 15 - 25 |
| Monday Night | WNW 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Night | --- - |
| Monday | --- - |
| Monday Night | --- - |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Afternoon - Sunday Night | WNW 25 - 40 |
| Monday | WNW 15 - 25 |
| Monday Night | SW 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.
Issued: 1:27 PM PST Sunday, February 23, 2014
Extended Weather Synopsis for Thursday night through Thursday
Split flow should develop over the Pacific Northwest through the extended period with a blocking high over Alaska and a stronger southern jet aiming systems into California.
Isolated showers in southerly flow may continue on Tuesday and Tuesday night with continued easterly flow through the passes. By Tuesday the cold air may reach Mt. Hood as colder air over the east slopes drains to the west. Moderate east winds should reach crest level on Tuesday. For western slopes not affected by the cool easterly flow...expect further warming to take place. Wednesday could be a dry day as a weak upper level ridge stays over eastern Washington and a decaying frontal band approaches the coast. Colder air should begin to moderate over the east slopes on Wednesday. Isolated showers are forecast to return on Thursday as an open wave passes through the PNW while most of the energy and moisture stays well south into California.
Extended Weather
Olympics, Washington Cascades and Mt. Hood Area
Partly to mostly cloudy with isolated showers. Gradual warming continues away from the Cascade Passes and areas on Mt. Hood exposed to cool easterly winds.
Partly cloudy and mild.
Partly to mostly cloudy with isolated rain and snow showers increasing on Thursday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday - Tuesday Night | Snow Level | ' - ' | 3000' - 5000' | 5000' - 7000' | * |
| Wednesday | Freezing Level | ' - ' | 6500' - 7500' | 7000' - 8000' | |
| Wednesday Night - Thursday | Freezing Level | ' - ' | 5000' - 6000' | 5000' - 6000' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday - Tuesday Night |
Snow Level ' - ' (Easterly Flow *) |
| Wednesday |
Freezing Level ' - ' |
| Wednesday Night - Thursday |
Freezing Level ' - ' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday - Tuesday Night |
Snow Level 3000' - 5000' (Easterly Flow *) |
| Wednesday |
Freezing Level 6500' - 7500' |
| Wednesday Night - Thursday |
Freezing Level 5000' - 6000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday - Tuesday Night |
Snow Level 5000' - 7000' (Easterly Flow *) |
| Wednesday |
Freezing Level 7000' - 8000' |
| Wednesday Night - Thursday |
Freezing Level 5000' - 6000' |
* 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 Feb 23, 2014
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