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 night through Wednesday
235 Update
There's a mix of developing cumulus clouds over the mountains, the stray mountain snow shower, and areas of high clouds that range from filtered sunshine to high overcast this afternoon. Clouds of all varieties will clear out this evening and any lingering showers should quickly wind down as well. Expect another cold night with mountain temperatures locally in the teens to even single digits through early Monday morning.
Monday should be a notch warmer than Sunday and definitely sunnier as weak upper level troughing remains over the area. This may drive a few afternoon cumulus clouds but unlike Saturday or Sunday, it won't be unstable enough to support afternoon showers. Winds will generally remain light out of the west.
The jet stream becomes aimed at central British Columbia Tuesday. This will drive the southern edge of a frontal system towards the north Cascades. Light rain and snow will develop along the Canadian border late Tuesday afternoon or evening and cause an increase in clouds for areas south. Areas on the southern fringe of the system like Mt. Hood will see more sun and warmer temperatures.
Weather Forecast
Hurricane Ridge
| Sunday Night | Partly cloudy in the evening and then mostly clear after midnight. |
| Monday | Mostly sunny. |
Mt. Baker
| Sunday Night | Mostly clear. |
| Monday | Mostly sunny. |
Washington Pass and Leavenworth
| Sunday Night | Partly cloudy in the evening and then mostly clear after midnight. |
| Monday | Mostly sunny. |
Stevens and Snoqualmie Pass
| Sunday Night | Partly cloudy in the evening and then mostly clear after midnight. Light west winds at Pass level. |
| Monday | Mostly sunny. Light west winds at Pass level. |
Mt. Rainier, Crystal and White Pass
| Sunday Night | Partly cloudy in the evening and then mostly clear after midnight. |
| Monday | Mostly sunny. |
Mt. Hood
| Sunday Night | Partly cloudy in the evening and then mostly clear after midnight. |
| Monday | Mostly sunny. |
Issued: 2:35 PM PDT Sunday, March 8, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Evening | Freezing Level | 1500' | 1500' | 1500' | 2000' | 1500' | 1500' | 2000' | 3000' |
| Sunday Night | Freezing Level | 500' | 0' | 0' | 1000' | 500' | 500' | 1000' | 2000' |
| Monday Morning | Freezing Level | 1500' | 1500' | 1500' | 2000' | 1500' | 1500' | 1500' | 1500' |
| Monday Afternoon | Freezing Level | 3500' | 3000' | 3500' | 4000' | 3500' | 3500' | 4500' | 5000' |
| Monday Evening | Freezing Level | 2500' | 2000' | 2000' | 2500' | 2500' | 2500' | 2500' | 4500' |
| Monday Night | Freezing Level | 1500' | 1000' | 1000' | 1500' | 1500' | 1500' | 2000' | 4000' |
| Tuesday Morning | Freezing Level | 3000' | 2000' | 2000' | 3000' | 2500' | 2500' | 3000' | 5000' |
| Tuesday Afternoon | Freezing Level | 4000' | 3500' | 4000' | 5000' | 4500' | 4500' | 5500' | 6500' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 1500' |
| Sunday Night |
Freezing Level 500' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 1500' |
| Tuesday Morning |
Freezing Level 3000' |
| Tuesday Afternoon |
Freezing Level 4000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 1500' |
| Sunday Night |
Freezing Level 0' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3000' |
| Monday Evening |
Freezing Level 2000' |
| Monday Night |
Freezing Level 1000' |
| Tuesday Morning |
Freezing Level 2000' |
| Tuesday Afternoon |
Freezing Level 3500' |
| Washington Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 1500' |
| Sunday Night |
Freezing Level 0' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3500' |
| Monday Evening |
Freezing Level 2000' |
| Monday Night |
Freezing Level 1000' |
| Tuesday Morning |
Freezing Level 2000' |
| Tuesday Afternoon |
Freezing Level 4000' |
| Leavenworth | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 2000' |
| Sunday Night |
Freezing Level 1000' |
| Monday Morning |
Freezing Level 2000' |
| Monday Afternoon |
Freezing Level 4000' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 1500' |
| Tuesday Morning |
Freezing Level 3000' |
| Tuesday Afternoon |
Freezing Level 5000' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 1500' |
| Sunday Night |
Freezing Level 500' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 1500' |
| Tuesday Morning |
Freezing Level 2500' |
| Tuesday Afternoon |
Freezing Level 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 1500' |
| Sunday Night |
Freezing Level 500' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 3500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 1500' |
| Tuesday Morning |
Freezing Level 2500' |
| Tuesday Afternoon |
Freezing Level 4500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 2000' |
| Sunday Night |
Freezing Level 1000' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 4500' |
| Monday Evening |
Freezing Level 2500' |
| Monday Night |
Freezing Level 2000' |
| Tuesday Morning |
Freezing Level 3000' |
| Tuesday Afternoon |
Freezing Level 5500' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening |
Freezing Level 3000' |
| Sunday Night |
Freezing Level 2000' |
| Monday Morning |
Freezing Level 1500' |
| Monday Afternoon |
Freezing Level 5000' |
| Monday Evening |
Freezing Level 4500' |
| Monday Night |
Freezing Level 4000' |
| Tuesday Morning |
Freezing Level 5000' |
| Tuesday Afternoon |
Freezing Level 6500' |
* 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 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 | LT 0.10 |
| 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 |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday Night | 0 |
| Wednesday | 0 |
| Wednesday Night | 0 |
| Wednesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday 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: 2:35 PM PDT Sunday, March 8, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Evening | WNW 0 - 10 | W 0 - 10 | W 5 - 15 | WNW 0 - 10 | W 5 - 15 |
| Sunday Night | W 0 - 10 | W 0 - 10 | W 0 - 10 | W 0 - 10 | W 5 - 15 |
| Monday Morning | W 0 - 10 | W 0 - 10 | W 0 - 10 | W 0 - 10 | W 0 - 10 |
| Monday Afternoon | W 0 - 10 | W 0 - 10 | W 5 - 15 | W 5 - 15 | W 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Evening | W 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | W 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | WNW 0 - 10 |
| Sunday Night | W 0 - 10 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Evening | W 5 - 15 | W 5 - 15 | W 10 - 20 | W 10 - 20 | W 10 - 20 |
| Sunday Night | W 5 - 15 | W 5 - 15 | W 10 - 20 | W 15 - 25 | W 5 - 15 |
| Monday Morning | W 0 - 10 | W 0 - 10 | W 10 - 20 | W 15 - 25 | W 5 - 15 |
| Monday Afternoon | W 5 - 15 | W 5 - 15 | W 15 - 25 | W 20 - 30 | W 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Evening | W 5 - 15 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 0 - 10 |
| Monday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 10 - 20 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 15 - 25 |
| Monday Afternoon | W 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Evening | W 10 - 20 |
| Sunday Night | W 5 - 15 |
| Monday Morning | W 5 - 15 |
| Monday Afternoon | W 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: 2:35 PM PDT Sunday, March 8, 2020
Extended Weather Synopsis for Wednesday night through Wednesday
The frontal system positioned to our north will sweep inland on Tuesday night, bringing a quick shot of precipitation as far south as the I-90 corridor and largely missing the south Washington Cascades and Mt. Hood. There will be a few leftover showers along the west slopes of the Cascades on Wednesday. A similar weather pattern will keep the next frontal system also to our north through at least Thursday afternoon. A slow warming trend will take place during the week with the highest freezing levels expected down near Mt. Hood each day.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Tuesday Night | Snow Level | 2000' - 3000' | 2500' - 3500' | 6500' - 7500' | |
| Wednesday | Snow Level | 2500' - 3500' | 3500' - 4500' | 5000' - 6000' | |
| Wednesday Night | Freezing Level | 1500' - 2500' | 2500' - 3500' | 6000' - 7000' | |
| Thursday | Freezing Level | 3000' - 4000' | 4000' - 5000' | 7000' - 8000' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Night |
Snow Level 2000' - 3000' |
| Wednesday |
Snow Level 2500' - 3500' |
| Wednesday Night |
Freezing Level 1500' - 2500' |
| Thursday |
Freezing Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Night |
Snow Level 2500' - 3500' |
| Wednesday |
Snow Level 3500' - 4500' |
| Wednesday Night |
Freezing Level 2500' - 3500' |
| Thursday |
Freezing Level 4000' - 5000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Night |
Snow Level 6500' - 7500' |
| Wednesday |
Snow Level 5000' - 6000' |
| Wednesday Night |
Freezing Level 6000' - 7000' |
| Thursday |
Freezing Level 7000' - 8000' |
* 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 Mar 8, 2020
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