Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday night through Monday
Showers have mostly come to an end this afternoon with weak upper level ridging positioned offshore. Most areas saw some sunshine or at least breaks in the low-level clouds. The partial clearing trend won't last long, as high clouds begin to work their way up from the south later tonight.
An open trough will begin to rotate up light precipitation on Thursday, reaching Mt. Hood in the morning but taking all day to reach the Mt. Baker area. Cloud ceilings will slowly lower from south to north during the day as well. The flow aloft may be southerly, but moderate easterly flow will develop up to Cascade Crest level late tonight through Thursday, affecting the Mt. Hood area and the south and central Washington Cascades primarily. The strength of the easterly flow makes for a tricky freezing level forecast for places outside it's reach; the Olympics and Mt. Baker area may see freezing levels rise to 4000 ft. Snow and rain may approach moderate intensity for the Mt. Hood area on Thursday closer to the low.
A frontal band will lift north overnight, bringing more widespread precipitation to all areas overnight and an end to the easterly winds. The upper low offshore will weaken and become an open trough over the Pacific Northwest on Friday. This should lead to widespread shower activity increasing slightly in the afternoon with daytime heating.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Partly to mostly cloudy. Periods of high clouds after midnight. |
| Thursday | Mostly cloudy in the morning, clouds lowering in the afternoon. Very light rain and snow possible late. |
Mt. Baker
| Wednesday Night | Partly to mostly cloudy. Periods of high clouds after midnight. |
| Thursday | Mostly cloudy in the morning, clouds lowering in the afternoon. Very light rain and snow possible late. |
Washington Pass and Leavenworth
| Wednesday Night | Partly to mostly cloudy. Periods of high clouds after midnight. |
| Thursday | Mostly cloudy in the morning, clouds lowering in the afternoon. Very light rain and snow possible late. |
Stevens and Snoqualmie Pass
| Wednesday Night | Partly to mostly cloudy. Periods of high clouds after midnight. Light winds in the Passes becoming east after midnight. |
| Thursday | Mostly cloudy in the morning, clouds lowering in the afternoon. Very light rain and snow possible late. Moderate east winds in the Passes and at Crest level. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Partly to mostly cloudy then high overcast after midnight. |
| Thursday | Mostly cloudy in the morning, clouds lowering in the afternoon. Very light rain and snow possible late. Moderate east winds. Warmer Paradise area, colder White Pass area. |
Mt. Hood
| Wednesday Night | Cloudy with light rain and snow developing late. |
| Thursday | Light rain and snow becoming occasionally moderate in the afternoon. Moderate east to southeast winds |
Issued: 2:40 PM PST Wednesday, February 13, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Evening | Freezing Level * | 1500' | 1500' | 0' | 0' | 500' | 1000' | 1500' | 2000' |
| Wednesday Night | Freezing Level * | 500' | 0' | 0' | 0' | 0' | 0' | 0' | 2000' |
| Thursday Morning | Snow Level * | 2000' | 1000' | 0' | 0' | 0' | 0' | 1000' | 1500' |
| Thursday Afternoon | Snow Level * | 4000' | 4000' | 2000' | 1000' | 2000' | 2000' | 3500' | 2000' |
| Thursday Evening | Snow Level * | 2500' | 2500' | 1500' | 1000' | 1500' | 1500' | 2000' | 2500' |
| Thursday Night | Snow Level | 1500' | 1500' | 1500' | 1000' | 1500' | 1500' | 1500' | 1500' |
| Friday Morning | Snow Level | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' | 2000' |
| Friday Afternoon | Snow Level | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' | 2500' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 500' (Easterly Flow *) |
| Thursday Morning |
Snow Level 2000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 2500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 2500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 0' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 1000' (Easterly Flow *) |
| Thursday Night |
Snow Level 1000' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 0' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 1500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 0' (Easterly Flow *) |
| Thursday Morning |
Snow Level 1000' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 3500' (Easterly Flow *) |
| Thursday Evening |
Snow Level 2000' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 2000' (Easterly Flow *) |
| Thursday Morning |
Snow Level 1500' (Easterly Flow *) |
| Thursday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Thursday Evening |
Snow Level 2500' (Easterly Flow *) |
| Thursday Night |
Snow Level 1500' |
| Friday Morning |
Snow Level 2000' |
| Friday Afternoon |
Snow Level 2500' |
* 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
| Wednesday Night | Monday | Monday Night | Monday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0 | LT 0.10 | 0.50 | 0.25 |
| Washington Pass | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Leavenworth | 0 | LT 0.25 | LT 0.25 | LT 0.10 |
| Stevens Pass | 0 | LT 0.10 | LT 0.25 | LT 0.25 |
| Snoqualmie Pass | 0 | LT 0.10 | 0.25 | LT 0.25 |
| Mission Ridge | 0 | 0.25 | LT 0.25 | LT 0.10 |
| Crystal Mt | 0 | LT 0.10 | 0.25 - 0.50 | LT 0.25 |
| Paradise | 0 | LT 0.25 | 0.25 - 0.50 | 0.25 - 0.50 |
| White Pass | 0 | LT 0.25 | LT 0.25 | 0.25 |
| Mt Hood Meadows | LT 0.10 | 0.50 | LT 0.25 | LT 0.10 |
| Timberline | LT 0.10 | 0.50 | 0.25 | LT 0.25 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | 0.25 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | 0.50 |
| Monday | 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | LT 0.25 |
| Monday | LT 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | 0.25 |
| Monday | LT 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | 0.25 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.10 |
| Monday Night | 0.25 - 0.50 |
| Monday | LT 0.25 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.25 |
| Monday Night | 0.25 - 0.50 |
| Monday | 0.25 - 0.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Monday | LT 0.25 |
| Monday Night | LT 0.25 |
| Monday | 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Monday | 0.50 |
| Monday Night | LT 0.25 |
| Monday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | LT 0.10 |
| Monday | 0.50 |
| Monday Night | 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: 2:40 PM PST Wednesday, February 13, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | ESE 5 - 15 | E 0 - 10 | E 5 - 15 | E 0 - 10 | ESE 5 - 15 |
| Wednesday Night | SE 5 - 15 | E 5 - 15 | E 10 - 20 | ESE 10 - 20 | E 5 - 15 |
| Thursday Morning | SE 10 - 20 | E 10 - 20 | E 15 - 30 | E 15 - 25 | E 15 - 25 |
| Thursday Afternoon | ESE 15 - 25 | E 10 - 20 | E 15 - 30 | E 15 - 25 | E 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | ESE 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | ESE 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | E 5 - 15 |
| Thursday Morning | E 10 - 20 |
| Thursday Afternoon | E 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | E 10 - 20 |
| Thursday Morning | E 15 - 30 |
| Thursday Afternoon | E 15 - 30 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | ESE 10 - 20 |
| Thursday Morning | E 15 - 25 |
| Thursday Afternoon | E 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | ESE 5 - 15 |
| Wednesday Night | E 5 - 15 |
| Thursday Morning | E 15 - 25 |
| Thursday Afternoon | E 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | ESE 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 10 - 20 |
| Thursday Afternoon | ESE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | E 5 - 15 |
| Thursday Morning | E 10 - 20 |
| Thursday Afternoon | E 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | E 5 - 15 |
| Wednesday Night | E 10 - 20 |
| Thursday Morning | E 15 - 30 |
| Thursday Afternoon | E 15 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | E 0 - 10 |
| Wednesday Night | ESE 10 - 20 |
| Thursday Morning | E 15 - 25 |
| Thursday Afternoon | E 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | ESE 5 - 15 |
| Wednesday Night | E 5 - 15 |
| Thursday Morning | E 15 - 25 |
| Thursday Afternoon | E 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | VAR 0 - 10 | VAR 0 - 10 | SW 0 - 10 | SW 5 - 15 | SW 15 - 25 |
| Wednesday Night | S 10 - 20 | S 10 - 20 | SSW 10 - 20 | SW 15 - 25 | SW 20 - 30 |
| Thursday Morning | SSE 15 - 25 | SSE 15 - 25 | SE 25 - 35 | SE 25 - 35 | SE 25 - 35 |
| Thursday Afternoon | SE 15 - 25 | ENE 25 - 35 | SE 35 - 50 | SE 35 - 45 | S 35 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | S 10 - 20 |
| Thursday Morning | SSE 15 - 25 |
| Thursday Afternoon | SE 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | S 10 - 20 |
| Thursday Morning | SSE 15 - 25 |
| Thursday Afternoon | ENE 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | SW 0 - 10 |
| Wednesday Night | SSW 10 - 20 |
| Thursday Morning | SE 25 - 35 |
| Thursday Afternoon | SE 35 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | SW 5 - 15 |
| Wednesday Night | SW 15 - 25 |
| Thursday Morning | SE 25 - 35 |
| Thursday Afternoon | SE 35 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | SW 15 - 25 |
| Wednesday Night | SW 20 - 30 |
| Thursday Morning | SE 25 - 35 |
| Thursday Afternoon | S 35 - 50 |
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: 2:40 PM PST Wednesday, February 13, 2019
Extended Weather Synopsis for Monday night through Monday
The broad upper trough will hang over the region Friday night and Saturday, keeping a mix of clouds and showers in the forecast. A pattern change should begin Sunday, as weak low pressure along the Washington/Oregon coast begins to draw down some colder air through the Fraser River Valley. While this doesn't look to the be an exact repeat of the events over the last week, this should set the stage for colder than normal snow levels once again heading into next week.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Snow Level | 1000' - 2000' | 1000' - 2000' | 1000' - 2000' | |
| Saturday | Snow Level | 1500' - 2500' | 1500' - 2500' | 1500' - 2500' | |
| Saturday Night | Snow Level | 0' - 0' | 0' - 1000' | 0' - 1000' | |
| Sunday | Snow Level | 0' - 0' | 0' - 500' | 0' - 1000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Snow Level 1000' - 2000' |
| Saturday |
Snow Level 1500' - 2500' |
| Saturday Night |
Snow Level 0' - 0' |
| Sunday |
Snow Level 0' - 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Snow Level 1000' - 2000' |
| Saturday |
Snow Level 1500' - 2500' |
| Saturday Night |
Snow Level 0' - 1000' |
| Sunday |
Snow Level 0' - 500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Snow Level 1000' - 2000' |
| Saturday |
Snow Level 1500' - 2500' |
| Saturday Night |
Snow Level 0' - 1000' |
| Sunday |
Snow Level 0' - 1000' |
* 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 13, 2019
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