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 Tuesday
A weak low pressure system digging off the Oregon coast will continue to spin clouds and light showers northward overnight. While high and mid clouds should reach all areas, measurable precipitation is only expected as far north as the south Washington Cascades. Tuesday should begin with partly sunny skies but light warm frontal moisture extending from a low pressure system in the Gulf of Alaska should bring increasing clouds along with very light rain and snow to the west slopes of the Cascades, the Olympics and Mt. Hood.
Precipitation will increase slightly Tuesday night as the frontal band stalls offshore. Upper level ridging over the west coast will begin to shift the frontal band northward on Wednesday for a drying and warming trend. A potential clearing trend is most likely for the south Washington Cascades and Mt. Hood Wednesday afternoon.
Weather Forecast
Hurricane Ridge
| Monday Night | Cloudy. |
| Tuesday | Cloudy with scattered showers in the afternoon. |
Mt. Baker
| Monday Night | Mostly cloudy. |
| Tuesday | Mostly cloudy with scattered showers in the afternoon. |
Washington Pass and Leavenworth
| Monday Night | Mostly cloudy. |
| Tuesday | Partly sunny in the morning becoming mostly cloudy with scattered showers in the afternoon. |
Stevens and Snoqualmie Pass
| Monday Night | Mostly cloudy. |
| Tuesday | Partly sunny in the morning becoming mostly cloudy with scattered showers in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday Night | Cloudy with a chance of light rain and snow showers. |
| Tuesday | Mostly cloudy with scattered showers in the afternoon. |
Mt. Hood
| Monday Night | Cloudy with light rain and snow showers. |
| Tuesday | Cloudy with scattered showers. |
Issued: 3:11 PM PDT Monday, April 15, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Evening | Snow Level | 4500' | 4500' | 5000' | 5000' | 4500' | 5000' | 5000' | 5000' |
| Monday Night | Snow Level | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4000' | 4500' |
| Tuesday Morning | Snow Level | 4000' | 4000' | 4500' | 4500' | 4500' | 4500' | 4500' | 5000' |
| Tuesday Afternoon | Snow Level | 5000' | 4500' | 5500' | 5500' | 5000' | 5000' | 5500' | 6000' |
| Tuesday Evening | Snow Level | 5000' | 4500' | 5500' | 5500' | 5000' | 5000' | 5500' | 6000' |
| Tuesday Night | Snow Level | 4500' | 4000' | 4500' | 4500' | 4500' | 4500' | 5000' | 5500' |
| Wednesday Morning | Snow Level | 5500' | 5000' | 5500' | 5500' | 5500' | 5500' | 5500' | 6000' |
| Wednesday Afternoon | Freezing Level | 7000' | 6500' | 7000' | 7000' | 7000' | 7000' | 7500' | 8000' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 5000' |
| Tuesday Evening |
Snow Level 5000' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4000' |
| Tuesday Afternoon |
Snow Level 4500' |
| Tuesday Evening |
Snow Level 4500' |
| Tuesday Night |
Snow Level 4000' |
| Wednesday Morning |
Snow Level 5000' |
| Wednesday Afternoon |
Freezing Level 6500' |
| Washington Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5500' |
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Leavenworth | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5500' |
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Stevens Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 4500' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5000' |
| Tuesday Evening |
Snow Level 5000' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5000' |
| Tuesday Evening |
Snow Level 5000' |
| Tuesday Night |
Snow Level 4500' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4000' |
| Tuesday Morning |
Snow Level 4500' |
| Tuesday Afternoon |
Snow Level 5500' |
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Snow Level 5000' |
| Wednesday Morning |
Snow Level 5500' |
| Wednesday Afternoon |
Freezing Level 7500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening |
Snow Level 5000' |
| Monday Night |
Snow Level 4500' |
| Tuesday Morning |
Snow Level 5000' |
| Tuesday Afternoon |
Snow Level 6000' |
| Tuesday Evening |
Snow Level 6000' |
| Tuesday Night |
Snow Level 5500' |
| Wednesday Morning |
Snow Level 6000' |
| Wednesday Afternoon |
Freezing Level 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.
Precipitation Forecast
| Monday Night | Tuesday | Tuesday Night | Tuesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0 | LT 0.10 |
| Mt Baker Ski Area | 0 | LT 0.10 | LT 0.25 | LT 0.25 |
| Washington Pass | 0 | 0 | LT 0.10 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Snoqualmie Pass | 0 | LT 0.10 | LT 0.25 | LT 0.10 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Paradise | LT 0.10 | LT 0.10 | LT 0.25 | LT 0.25 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | LT 0.25 | LT 0.10 | LT 0.10 | 0 |
| Timberline | LT 0.25 | LT 0.25 | LT 0.10 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | 0 |
| Tuesday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | LT 0.10 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Tuesday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.25 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday Night | LT 0.25 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Tuesday | 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: 3:11 PM PDT Monday, April 15, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Evening | E 0 - 10 | VAR 0 - 10 | E 5 - 15 | E 0 - 10 | VAR 0 - 10 |
| Monday Night | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | SW 0 - 10 | WSW 0 - 10 |
| Tuesday Morning | S 0 - 10 | S 0 - 10 | SW 0 - 10 | SW 0 - 10 | SW 5 - 15 |
| Tuesday Afternoon | SW 5 - 15 | SW 10 - 20 | W 10 - 20 | SW 5 - 15 | W 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Evening | E 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening | E 5 - 15 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | SW 0 - 10 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Evening | E 0 - 10 |
| Monday Night | SW 0 - 10 |
| Tuesday Morning | SW 0 - 10 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | WSW 0 - 10 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | W 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Evening | E 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | S 0 - 10 |
| Tuesday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | E 5 - 15 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | SW 0 - 10 |
| Tuesday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | E 0 - 10 |
| Monday Night | SW 0 - 10 |
| Tuesday Morning | SW 0 - 10 |
| Tuesday Afternoon | SW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | VAR 0 - 10 |
| Monday Night | WSW 0 - 10 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | W 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 | SE 0 - 10 | SE 0 - 10 | S 5 - 15 | S 10 - 20 | SW 10 - 20 |
| Monday Night | SW 0 - 10 | VAR 0 - 10 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 |
| Tuesday Morning | SW 5 - 15 | SW 0 - 10 | W 10 - 20 | W 10 - 20 | W 5 - 15 |
| Tuesday Afternoon | SW 10 - 20 | SW 10 - 20 | W 20 - 30 | W 15 - 25 | W 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Evening | SE 0 - 10 |
| Monday Night | SW 0 - 10 |
| Tuesday Morning | SW 5 - 15 |
| Tuesday Afternoon | SW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Evening | SE 0 - 10 |
| Monday Night | VAR 0 - 10 |
| Tuesday Morning | SW 0 - 10 |
| Tuesday Afternoon | SW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Evening | S 5 - 15 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | W 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Evening | S 10 - 20 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | W 10 - 20 |
| Tuesday Afternoon | W 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Evening | SW 10 - 20 |
| Monday Night | WSW 10 - 20 |
| Tuesday Morning | W 5 - 15 |
| Tuesday Afternoon | W 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: 3:11 PM PDT Monday, April 15, 2019
Extended Weather Synopsis for Tuesday night through Tuesday
A new wave developing along the stalled frontal boundary will approach the area Wednesday night as the upper level ridge begins to flatten and shift inland. This should open the door to increased amounts of moisture aimed primarily at the north Cascades through Thursday. Precipitation amounts should taper from north to south with little to no precipitation expected for Mt. Hood over this period. Snow/freezing levels should remain mild through Thursday night when a stronger frontal system blows through the area with the potential for significant winds, precipitation and eventual cooling headed into Friday.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Wednesday Night | Snow Level | 5500' - 7000' | 6500' - 7500' | 8000' - 9000' | |
| Thursday | Snow Level | 6500' - 7500' | 7500' - 8500' | 8500' - 9500' | |
| Thursday Night | Snow Level | 7000' - 8000' | 8000' - 9000' | 8500' - 9500' | |
| Friday | Snow Level | 5000' - 6000' | 5500' - 6500' | 6500' - 7500' |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Night |
Snow Level 5500' - 7000' |
| Thursday |
Snow Level 6500' - 7500' |
| Thursday Night |
Snow Level 7000' - 8000' |
| Friday |
Snow Level 5000' - 6000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Night |
Snow Level 6500' - 7500' |
| Thursday |
Snow Level 7500' - 8500' |
| Thursday Night |
Snow Level 8000' - 9000' |
| Friday |
Snow Level 5500' - 6500' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Night |
Snow Level 8000' - 9000' |
| Thursday |
Snow Level 8500' - 9500' |
| Thursday Night |
Snow Level 8500' - 9500' |
| Friday |
Snow Level 6500' - 7500' |
* 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 Apr 14, 2019
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