Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Monday night through Wednesday
After several days of storms, things should quiet down considerably Monday night. Don't rule out a stray shower in the early evening, but most locations should experience dry and generally clear conditions. A high-pressure ridge will continue to strengthen in the eastern Pacific and become the dominant factor in our weather for the next several days. It should provide us with dry, cool, and clear weather over the short-term forecast period. Northerly flow will draw cold air into the region from Canada Monday night and combine with mostly clear skies to create chilly conditions in all locations. After a cold start to Tuesday morning, plenty of sunshine will allow temperatures to increase, with several mountain locations reaching freezing later in the day. Winds should also kick-up in the afternoon as the high-pressure nudges east and sets-up offshore flow.
Things get a bit more complicated Tuesday night into Wednesday. Warm air tries to work its way into the Olympics and Cascades from the west and battles cold air in place east of the mountains. You could see multiple freezing levels during this set-up. Look for trailhead locations to experience cold crisp nights with temperatures again increasing during the day.
Weather Forecast
Hurricane Ridge
| Monday Night | Partly cloudy to mostly clear. Isolated snow showers possible. |
| Tuesday | Mostly sunny. Cold in the morning with warming during the day. |
Mt. Baker
| Monday Night | Mostly clear. |
| Tuesday | Mostly sunny. Cold in the morning with warming during the day. |
Washington Pass and Leavenworth
| Monday Night | Mostly clear. Light west winds. |
| Tuesday | Mostly sunny. Light and variable winds. |
Stevens and Snoqualmie Pass
| Monday Night | Mostly clear. East flow developing in Passes. |
| Tuesday | Mostly sunny. Cold in the morning. East winds increasing in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday Night | Mostly clear. Moderate alpine winds decreasing overnight. |
| Tuesday | Mostly sunny. Cold in the morning. East winds increasing in the afternoon. |
Mt. Hood
| Monday Night | Mostly clear. Moderate alpine winds decreasing overnight. |
| Tuesday | Mostly sunny. Cold in the morning. East winds increasing in the afternoon. |
Issued: 1:27 PM PST Monday, February 17, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Evening | Freezing Level | 1500' | 500' | 500' | 500' | 500' | 500' | 500' | 1000' |
| Monday Night | Freezing Level * | 1000' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Tuesday Morning | Freezing Level * | 1500' | 500' | 500' | 500' | 500' | 500' | 500' | 1000' |
| Tuesday Afternoon | Freezing Level * | 3000' | 3500' | 3500' | 3500' | 3500' | 3500' | 4500' | 4000' |
| Tuesday Evening | Freezing Level * | 2000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' |
| Tuesday Night | Freezing Level * | 2000' | 500' | 500' | 500' | 500' | 500' | 500' | 1000' |
| Wednesday Morning | Freezing Level * | 2500' | 1500' | 1500' | 1500' | 1500' | 1500' | 2000' | 2000' |
| Wednesday Afternoon | Freezing Level * | 6000' | 5500' | 3500' | 3500' | 3500' | 3500' | 5000' | 4500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening |
Freezing Level 1500' |
| Monday Night |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3000' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 2000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 5500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 1500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 3500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Evening |
Freezing Level 500' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 4500' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 4000' (Easterly Flow *) |
| Tuesday Evening |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 1000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 2000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 4500' (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
| Monday Night | Wednesday | Wednesday Night | Wednesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
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 Monday, February 17, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Evening | VAR 0 - 10 | VAR 0 - 10 | NW 5 - 15 | NW 5 - 15 | NW 5 - 15 |
| Monday Night | E 5 - 15 | E 5 - 15 | NNE 5 - 15 | NE 5 - 15 | E 5 - 15 |
| Tuesday Morning | E 5 - 15 | E 5 - 15 | E 5 - 15 | E 5 - 15 | E 10 - 20 |
| Tuesday Afternoon | SE 5 - 15 | E 5 - 15 | E 10 - 20 | E 10 - 20 | E 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | SE 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | NNE 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | NE 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 10 - 20 |
| Tuesday Afternoon | E 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | SE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | NNE 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | NE 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | NW 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 10 - 20 |
| Tuesday 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 | |
|---|---|---|---|---|---|
| Monday Evening | NNW 10 - 20 | N 5 - 15 | NNW 10 - 20 | NNW 15 - 25 | NNW 15 - 25 |
| Monday Night | N 10 - 20 | N 10 - 20 | NNE 5 - 15 | N 5 - 15 | N 10 - 20 |
| Tuesday Morning | N 15 - 25 | N 15 - 25 | NNE 10 - 20 | NE 10 - 20 | NE 10 - 20 |
| Tuesday Afternoon | NNE 15 - 25 | N 15 - 25 | NNE 10 - 20 | NE 10 - 20 | NE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | NNW 10 - 20 |
| Monday Night | N 10 - 20 |
| Tuesday Morning | N 15 - 25 |
| Tuesday Afternoon | NNE 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Evening | N 5 - 15 |
| Monday Night | N 10 - 20 |
| Tuesday Morning | N 15 - 25 |
| Tuesday Afternoon | N 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | NNW 10 - 20 |
| Monday Night | NNE 5 - 15 |
| Tuesday Morning | NNE 10 - 20 |
| Tuesday Afternoon | NNE 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | NNW 15 - 25 |
| Monday Night | N 5 - 15 |
| Tuesday Morning | NE 10 - 20 |
| Tuesday Afternoon | NE 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | NNW 15 - 25 |
| Monday Night | N 10 - 20 |
| Tuesday Morning | NE 10 - 20 |
| Tuesday Afternoon | NE 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.
Issued: 1:27 PM PST Monday, February 17, 2020
Extended Weather Synopsis for Wednesday night through Wednesday
The weather appears to stay quiet through the rest of the week. The high pressure responsible for our dry weather gradually shifts east and weakens, but holds an approaching system at bay. The biggest impact seems to be more mid and high-level clouds. We should continue to experience a strong daytime warming and nighttime cooling pattern with the possibility of multiple freezing levels. This will be most pronounced in the mountain passes. Weather models indicate the next chance at significant precipitation comes Saturday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Wednesday Night | Freezing Level | 1500' - 3000' | 1000' - 2500' | 1500' - 3000' | * |
| Thursday | Freezing Level | 4000' - 5500' | 3000' - 4000' | 3000' - 4000' | * |
| Thursday Night | Freezing Level | 2000' - 3000' | 1500' - 2500' | 2000' - 3000' | * |
| Friday | Freezing Level | 3500' - 4500' | 3000' - 4500' | 3500' - 5000' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 1500' - 3000' (Easterly Flow *) |
| Thursday |
Freezing Level 4000' - 5500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 2000' - 3000' (Easterly Flow *) |
| Friday |
Freezing Level 3500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 1000' - 2500' (Easterly Flow *) |
| Thursday |
Freezing Level 3000' - 4000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 1500' - 2500' (Easterly Flow *) |
| Friday |
Freezing Level 3000' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Night |
Freezing Level 1500' - 3000' (Easterly Flow *) |
| Thursday |
Freezing Level 3000' - 4000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 2000' - 3000' (Easterly Flow *) |
| Friday |
Freezing Level 3500' - 5000' |
* 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 17, 2020
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