Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Tuesday night through Thursday
Weak convergence combined with moderate onshore flow at the surface continues to produce scattered light showers along the west slopes of the Cascades and Mt. Hood this afternoon. Scattered showers will taper down quickly overnight.
We should be in for a fine spring day on Wednesday with mostly sunny skies expected in all areas by mid-day. Westerly alpine winds that have been in the moderate range should decrease on Wednesday. Through the next few days, Mt. Hood will be markedly warmer than areas further north.
The dry weather will continue on Thursday as a shortwave upper level trough approaching from the west spreads some high clouds over the region, primarily for the Olympics and north Cascades. Freezing levels/temperatures should be a notch warmer on Thursday.
Weather Forecast
Hurricane Ridge
| Tuesday Night | Partly cloudy. |
| Wednesday | Mostly sunny. |
Mt. Baker
| Tuesday Night | Mostly cloudy with scattered light rain and snow showers tapering off in the evening. |
| Wednesday | Partly to mostly cloudy in the morning becoming mostly sunny. |
Washington Pass and Leavenworth
| Tuesday Night | Partly to mostly cloudy in the evening becoming mostly clear after midnight. |
| Wednesday | Mostly sunny. |
Stevens and Snoqualmie Pass
| Tuesday Night | Mostly cloudy with scattered light rain and snow showers tapering off in the evening. |
| Wednesday | Partly to mostly cloudy in the morning becoming mostly sunny. |
Mt. Rainier, Crystal and White Pass
| Tuesday Night | Mostly cloudy with isolated light rain and snow showers tapering off in the evening. |
| Wednesday | Partly cloudy in the morning becoming mostly sunny. |
Mt. Hood
| Tuesday Night | Mostly cloudy with scattered light rain and snow showers tapering off in the evening. |
| Wednesday | Partly cloudy in the morning becoming mostly sunny. |
Issued: 3:00 PM PDT Tuesday, April 23, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Tuesday Evening | Snow Level | 5000' | 5500' | 5500' | 6000' | 5500' | 5500' | 6000' | 7000' |
| Tuesday Night | Freezing Level | 4500' | 4000' | 4500' | 5500' | 4000' | 4000' | 4500' | 9000' |
| Wednesday Morning | Freezing Level | 5000' | 4500' | 5000' | 6000' | 4500' | 4500' | 6000' | 9000' |
| Wednesday Afternoon | Freezing Level | 7000' | 6500' | 7500' | 7500' | 7000' | 7000' | 7500' | 9000' |
| Wednesday Evening | Freezing Level | 7000' | 6500' | 6500' | 7000' | 7000' | 7000' | 8000' | 9500' |
| Wednesday Night | Freezing Level | 7000' | 6500' | 6000' | 6500' | 7000' | 7000' | 8000' | 9500' |
| Thursday Morning | Freezing Level | 7500' | 6500' | 6000' | 6500' | 7000' | 7500' | 8500' | 9500' |
| Thursday Afternoon | Freezing Level | 7500' | 7500' | 7500' | 8000' | 8000' | 8000' | 8500' | 9500' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 5000' |
| Tuesday Night |
Freezing Level 4500' |
| Wednesday Morning |
Freezing Level 5000' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 7000' |
| Thursday Morning |
Freezing Level 7500' |
| Thursday Afternoon |
Freezing Level 7500' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Freezing Level 4000' |
| Wednesday Morning |
Freezing Level 4500' |
| Wednesday Afternoon |
Freezing Level 6500' |
| Wednesday Evening |
Freezing Level 6500' |
| Wednesday Night |
Freezing Level 6500' |
| Thursday Morning |
Freezing Level 6500' |
| Thursday Afternoon |
Freezing Level 7500' |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Freezing Level 4500' |
| Wednesday Morning |
Freezing Level 5000' |
| Wednesday Afternoon |
Freezing Level 7500' |
| Wednesday Evening |
Freezing Level 6500' |
| Wednesday Night |
Freezing Level 6000' |
| Thursday Morning |
Freezing Level 6000' |
| Thursday Afternoon |
Freezing Level 7500' |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 6000' |
| Tuesday Night |
Freezing Level 5500' |
| Wednesday Morning |
Freezing Level 6000' |
| Wednesday Afternoon |
Freezing Level 7500' |
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 6500' |
| Thursday Morning |
Freezing Level 6500' |
| Thursday Afternoon |
Freezing Level 8000' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Freezing Level 4000' |
| Wednesday Morning |
Freezing Level 4500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 7000' |
| Thursday Morning |
Freezing Level 7000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 5500' |
| Tuesday Night |
Freezing Level 4000' |
| Wednesday Morning |
Freezing Level 4500' |
| Wednesday Afternoon |
Freezing Level 7000' |
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 7000' |
| Thursday Morning |
Freezing Level 7500' |
| Thursday Afternoon |
Freezing Level 8000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 6000' |
| Tuesday Night |
Freezing Level 4500' |
| Wednesday Morning |
Freezing Level 6000' |
| Wednesday Afternoon |
Freezing Level 7500' |
| Wednesday Evening |
Freezing Level 8000' |
| Wednesday Night |
Freezing Level 8000' |
| Thursday Morning |
Freezing Level 8500' |
| Thursday Afternoon |
Freezing Level 8500' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 7000' |
| Tuesday Night |
Freezing Level 9000' |
| Wednesday Morning |
Freezing Level 9000' |
| Wednesday Afternoon |
Freezing Level 9000' |
| Wednesday Evening |
Freezing Level 9500' |
| Wednesday Night |
Freezing Level 9500' |
| Thursday Morning |
Freezing Level 9500' |
| Thursday Afternoon |
Freezing Level 9500' |
* 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
| Tuesday Night | Thursday | Thursday Night | Thursday | |
|---|---|---|---|---|
| 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 | LT 0.10 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 | 0 |
| Snoqualmie Pass | LT 0.10 | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 | 0 |
| Paradise | LT 0.10 | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | LT 0.10 | 0 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Thursday | 0 |
| Thursday Night | 0 |
| Thursday | 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: 3:00 PM PDT Tuesday, April 23, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | SW 5 - 15 | SW 5 - 15 | W 10 - 20 | SW 10 - 20 | WSW 15 - 25 |
| Tuesday Night | NW 5 - 15 | SW 0 - 10 | NW 5 - 15 | SW 5 - 15 | W 15 - 25 |
| Wednesday Morning | NW 0 - 10 | W 0 - 10 | NW 5 - 15 | W 0 - 10 | WNW 5 - 15 |
| Wednesday Afternoon | NW 0 - 10 | W 0 - 10 | NW 10 - 20 | NW 5 - 15 | NW 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | SW 5 - 15 |
| Tuesday Night | NW 5 - 15 |
| Wednesday Morning | NW 0 - 10 |
| Wednesday Afternoon | NW 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | SW 5 - 15 |
| Tuesday Night | SW 0 - 10 |
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | W 10 - 20 |
| Tuesday Night | NW 5 - 15 |
| Wednesday Morning | NW 5 - 15 |
| Wednesday Afternoon | NW 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | SW 10 - 20 |
| Tuesday Night | SW 5 - 15 |
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | WSW 15 - 25 |
| Tuesday Night | W 15 - 25 |
| Wednesday Morning | WNW 5 - 15 |
| Wednesday Afternoon | NW 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | SW 5 - 15 |
| Tuesday Night | NW 5 - 15 |
| Wednesday Morning | NW 0 - 10 |
| Wednesday Afternoon | NW 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | SW 5 - 15 |
| Tuesday Night | SW 0 - 10 |
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | W 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | W 10 - 20 |
| Tuesday Night | NW 5 - 15 |
| Wednesday Morning | NW 5 - 15 |
| Wednesday Afternoon | NW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | SW 10 - 20 |
| Tuesday Night | SW 5 - 15 |
| Wednesday Morning | W 0 - 10 |
| Wednesday Afternoon | NW 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | WSW 15 - 25 |
| Tuesday Night | W 15 - 25 |
| Wednesday Morning | WNW 5 - 15 |
| Wednesday 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 | |
|---|---|---|---|---|---|
| Tuesday Evening | W 15 - 25 | W 25 - 35 | W 30 - 40 | W 30 - 40 | W 35 - 45 |
| Tuesday Night | NW 20 - 30 | NW 25 - 35 | WNW 30 - 40 | W 25 - 35 | W 35 - 45 |
| Wednesday Morning | NW 15 - 25 | NW 15 - 25 | NW 25 - 35 | NW 20 - 30 | NW 15 - 25 |
| Wednesday Afternoon | W 10 - 20 | W 5 - 15 | NW 15 - 25 | NW 10 - 20 | WNW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | W 15 - 25 |
| Tuesday Night | NW 20 - 30 |
| Wednesday Morning | NW 15 - 25 |
| Wednesday Afternoon | W 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Evening | W 25 - 35 |
| Tuesday Night | NW 25 - 35 |
| Wednesday Morning | NW 15 - 25 |
| Wednesday Afternoon | W 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | W 30 - 40 |
| Tuesday Night | WNW 30 - 40 |
| Wednesday Morning | NW 25 - 35 |
| Wednesday Afternoon | NW 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | W 30 - 40 |
| Tuesday Night | W 25 - 35 |
| Wednesday Morning | NW 20 - 30 |
| Wednesday Afternoon | NW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | W 35 - 45 |
| Tuesday Night | W 35 - 45 |
| Wednesday Morning | NW 15 - 25 |
| Wednesday Afternoon | WNW 10 - 20 |
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: 3:00 PM PDT Tuesday, April 23, 2019
Extended Weather Synopsis for Thursday night through Thursday
The aforementioned shortwave trough will pass through Thursday night, bringing with it a shot of much cooler air and likely showers for mainly the north Cascades and to a lesser extent the central Cascades late Thursday night and Friday. Moderate NW flow aloft will renew moderate W-NW alpine winds Friday and Saturday. As an upper low meanders over southern B.C. on Saturday, showers are most likely to pop up over the north Cascasdes.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday Night | Freezing Level | 5500' - 6500' | 6000' - 7000' | 8000' - 9000' | |
| Friday | Freezing Level | 5000' - 6000' | 5500' - 6500' | 6000' - 7000' | |
| Friday Night | Snow Level | 2500' - 3500' | 3000' - 4000' | 3000' - 4000' | |
| Saturday | Snow Level | 3000' - 4000' | 3500' - 4500' | 4500' - 5500' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Freezing Level 5500' - 6500' |
| Friday |
Freezing Level 5000' - 6000' |
| Friday Night |
Snow Level 2500' - 3500' |
| Saturday |
Snow Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Freezing Level 6000' - 7000' |
| Friday |
Freezing Level 5500' - 6500' |
| Friday Night |
Snow Level 3000' - 4000' |
| Saturday |
Snow Level 3500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Freezing Level 8000' - 9000' |
| Friday |
Freezing Level 6000' - 7000' |
| Friday Night |
Snow Level 3000' - 4000' |
| Saturday |
Snow Level 4500' - 5500' |
* 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 22, 2019
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