Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday night through Sunday
The current stretch of dry, mild and mostly clear weather will continue through the weekend. Dry northerly flow aloft and light onshore flow will keep skies mostly clear through Saturday night. While freezing levels hover in the 5000'-7000' range through the weekend there are a few forecast nuances to talk about. Overnight low temperatures and freezing levels Friday night and Saturday morning should be slightly cooler than Friday. Expect temperature inversions and sub-freezing temperatures along lower slopes and in deeper valleys. Saturday night and Sunday morning will be the opposite scenario with milder temperatures expected at all elevations and little diurnal fluctuation in the freezing levels.
While Sunday will be dry and mild as well, we'll begin to see the first clues that the weather pattern is about to change. High clouds ahead of a developing frontal system will increase during the day as the weather system approaches from the NW. Expect winds to increase and skies to become high overcast later in the day.
Weather Forecast
Hurricane Ridge
| Friday Night | Mostly clear. |
| Saturday | Mostly sunny. |
Mt. Baker
| Friday Night | Mostly clear. |
| Saturday | Mostly sunny. |
Washington Pass and Leavenworth
| Friday Night | Mostly clear. |
| Saturday | Mostly sunny. |
Stevens and Snoqualmie Pass
| Friday Night | Mostly clear. Light to moderate west winds at Pass level easing overnight. |
| Saturday | Mostly sunny. Light west winds at Pass level. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Mostly clear. |
| Saturday | Mostly sunny. |
Mt. Hood
| Friday Night | Mostly clear. |
| Saturday | Mostly sunny. |
Issued: 1:56 PM PDT Friday, March 20, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Evening | Freezing Level | 5500' | 5000' | 5000' | 5500' | 5500' | 5500' | 5500' | 6500' |
| Friday Night | Freezing Level | 4500' | 4000' | 2500' | 4500' | 4000' | 4500' | 4500' | 6000' |
| Saturday Morning | Freezing Level | 5000' | 5000' | 5000' | 5000' | 5000' | 5000' | 5000' | 6500' |
| Saturday Afternoon | Freezing Level | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 7000' | 7500' |
| Saturday Evening | Freezing Level | 7000' | 6500' | 5000' | 6000' | 7000' | 7000' | 7000' | 7000' |
| Saturday Night | Freezing Level | 7000' | 5500' | 2500' | 5500' | 6500' | 6500' | 7000' | 7000' |
| Sunday Morning | Freezing Level | 6500' | 6000' | 5000' | 6500' | 7000' | 7000' | 7000' | 7000' |
| Sunday Afternoon | Freezing Level | 6000' | 6000' | 6000' | 7000' | 7000' | 7000' | 7000' | 7000' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 7000' |
| Sunday Morning |
Freezing Level 6500' |
| Sunday Afternoon |
Freezing Level 6000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5000' |
| Friday Night |
Freezing Level 4000' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 6500' |
| Saturday Night |
Freezing Level 5500' |
| Sunday Morning |
Freezing Level 6000' |
| Sunday Afternoon |
Freezing Level 6000' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5000' |
| Friday Night |
Freezing Level 2500' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 5000' |
| Saturday Night |
Freezing Level 2500' |
| Sunday Morning |
Freezing Level 5000' |
| Sunday Afternoon |
Freezing Level 6000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 5500' |
| Sunday Morning |
Freezing Level 6500' |
| Sunday Afternoon |
Freezing Level 7000' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4000' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 6500' |
| Sunday Morning |
Freezing Level 7000' |
| Sunday Afternoon |
Freezing Level 7000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 6500' |
| Sunday Morning |
Freezing Level 7000' |
| Sunday Afternoon |
Freezing Level 7000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' |
| Friday Night |
Freezing Level 4500' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Freezing Level 7000' |
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 7000' |
| Sunday Morning |
Freezing Level 7000' |
| Sunday Afternoon |
Freezing Level 7000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Freezing Level 6500' |
| Friday Night |
Freezing Level 6000' |
| Saturday Morning |
Freezing Level 6500' |
| Saturday Afternoon |
Freezing Level 7500' |
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 7000' |
| Sunday Morning |
Freezing Level 7000' |
| Sunday Afternoon |
Freezing Level 7000' |
* 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
| Friday Night | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 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 |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 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: 1:56 PM PDT Friday, March 20, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | W 0 - 10 | SW 0 - 10 | W 5 - 15 | W 0 - 10 | WNW 5 - 15 |
| Friday Night | VAR 0 - 10 | VAR 0 - 10 | W 5 - 15 | W 0 - 10 | WNW 5 - 15 |
| Saturday Morning | NE 0 - 10 | N 0 - 10 | NW 0 - 10 | NW 0 - 10 | WNW 0 - 10 |
| Saturday Afternoon | N 0 - 10 | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 | NW 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | NE 0 - 10 |
| Saturday Afternoon | N 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | SW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | W 0 - 10 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | NE 0 - 10 |
| Saturday Afternoon | N 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | SW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | W 5 - 15 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | W 0 - 10 |
| Saturday Morning | NW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | WNW 5 - 15 |
| Friday Night | WNW 5 - 15 |
| Saturday Morning | WNW 0 - 10 |
| Saturday Afternoon | NW 0 - 10 |
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 | |
|---|---|---|---|---|---|
| Friday Evening | NW 10 - 20 | NW 5 - 15 | NW 15 - 25 | NW 10 - 20 | WNW 10 - 20 |
| Friday Night | NW 5 - 15 | N 5 - 15 | N 5 - 15 | NW 10 - 20 | NW 10 - 20 |
| Saturday Morning | N 5 - 15 | N 5 - 15 | N 5 - 15 | NW 10 - 20 | NW 10 - 20 |
| Saturday Afternoon | N 5 - 15 | N 15 - 25 | NE 5 - 15 | NE 0 - 10 | N 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | N 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | NW 5 - 15 |
| Friday Night | N 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | N 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | NW 15 - 25 |
| Friday Night | N 5 - 15 |
| Saturday Morning | N 5 - 15 |
| Saturday Afternoon | NE 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | NW 10 - 20 |
| Friday Night | NW 10 - 20 |
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | NE 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | WNW 10 - 20 |
| Friday Night | NW 10 - 20 |
| Saturday Morning | NW 10 - 20 |
| Saturday Afternoon | N 0 - 10 |
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: 1:56 PM PDT Friday, March 20, 2020
Extended Weather Synopsis for Sunday night through Sunday
The frontal system will quickly drop south along the Washington Coast Sunday night with the cold front slow to pass inland early Monday morning. Snow levels will fall Sunday night and remain cool for the rest of the week. The associated cold upper low will be the dominant weather feature following the frontal passage as it hangs over the area through Tuesday. Shower activity will increase Monday afternoon and again Tuesday afternoon when daytime heating pairs with a cool unstable air mass. Light to moderate snow accumulations are expected over this period. An active weather pattern will through much of next week.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Snow Level | 2500' - 3500' | 3500' - 4500' | 3500' - 4500' | |
| Monday | Snow Level | 2000' - 3000' | 2000' - 3000' | 2500' - 3500' | |
| Monday Night | Snow Level | 1000' - 2000' | 1000' - 2000' | 1500' - 2500' | |
| Tuesday | Snow Level | 2000' - 3000' | 2000' - 3000' | 2000' - 3000' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Snow Level 2500' - 3500' |
| Monday |
Snow Level 2000' - 3000' |
| Monday Night |
Snow Level 1000' - 2000' |
| Tuesday |
Snow Level 2000' - 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Snow Level 3500' - 4500' |
| Monday |
Snow Level 2000' - 3000' |
| Monday Night |
Snow Level 1000' - 2000' |
| Tuesday |
Snow Level 2000' - 3000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Snow Level 3500' - 4500' |
| Monday |
Snow Level 2500' - 3500' |
| Monday Night |
Snow Level 1500' - 2500' |
| Tuesday |
Snow Level 2000' - 3000' |
* 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 20, 2020
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