Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Weather Synopsis
230pm Update: Adjusted Synopsis
An atmospheric river is steering moisture and rising snow levels into our region this afternoon. Stormy conditions will intensify as a strong cold front approaches and sweeps from NW to SE across the area tonight, bringing heavy precipitation and strong winds across the mountains. Temperatures will remain mild through the evening and then snow levels will drop rapidly after the cold front sweeps through the Cascades in the 1-2am window.
We'll be left in post-frontal westerly flow on Wednesday, with snow (finally!) showing up at lower elevations (2-3000') and stacking up throughout the day. Snow totals through Wednesday afternoon should range from 6-18". The west slopes of the Cascades, the Passes (above 4000'), and areas near the Cascade crest are the most likely places to see a foot or more of new snow. Westerly winds will be so strong that a clean convergence zone may be hard to discern on radar, but there may be stretches of E-W convergence bands in the Mt Loop and Stevens vicinity, particularly through mid-day Wednesday. Extreme winds will be a theme this afternoon and tonight just about everywhere. Ferocious westerly winds will not let up on Wednesday, at least not immediately, and strong downslope winds will pepper not just the mountains but also ares along the eastern slopes of the Cascades during the day. Expect poor visibility during heavier showers/strong winds. Both showers and winds will taper slowly later in the day.
Showers should be lighter on Wednesday night as a new Pacific frontal system approaches. The heaviest precipitation and winds will push into the Mt Hood area early Thursday, and lighter but still significant precipitation will spread northward as an occluded front approaches the WA Cascades Thursday afternoon. There will be some warming with this system, but outside of Mt Hood, it's unclear how much snow levels jump over the Cascades Thursday afternoon and evening.
Weather Station Announcement: Our weather station network is struggling following this prolonged and epic storm cycle of flooding, high winds, washouts, fallen trees, etc. Some stations may be down for an extended period.
Weather Forecast
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Moderate to occasionally heavy snow showers. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Moderate to occasionally heavy snow showers. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and strong W-SW winds at Pass level and becoming extreme along ridgelines. |
|---|---|
| Wednesday | Moderate to occasionally heavy snow showers. Extreme Pass level and ridgeline W winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and strong W-SW winds at Pass level and becoming extreme along ridgelines. |
|---|---|
| Wednesday | Moderate to occasionally heavy snow showers. Extreme Pass level and ridgeline W winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers, heaviest near the Cascade crest. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers, heaviest near the Cascade crest. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers, heaviest near the Cascade crest. Extreme ridgeline winds slowly easing during the day. |
| Tuesday Night | Stormy with moderate to heavy rain and snow and extreme winds. |
|---|---|
| Wednesday | Light to moderate snow showers. Extreme ridgeline winds slowly easing during the day. |
Issued: 2:34 PM PST Tuesday, December 16, 2025
Precipitation (in)
| Tuesday Night | Wednesday | Wednesday Night | Thursday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 1.00 - 1.50 | 0.50 | LT 0.25 | 0.25 |
| Mt Baker Ski Area | 2.00 - 2.50 | 0.50 - 0.75 | 0.50 | 0.50 - 0.75 |
| Mt. Loop - Barlow Pass | 2.50 | 0.75 -1.00 | 0.25 - 0.50 | 0.50 - 0.75 |
| Stevens Pass | 1.50 | 0.75 | 0.25 | 0.50 |
| Snoqualmie Pass | 1.50 - 2.00 | 0.75 | 0.25 - 0.50 | 0.75 -1.00 |
| Crystal Mt | 1.00 - 1.50 | 0.25 - 0.50 | LT 0.10 | 0.75 -1.00 |
| Paradise | 1.50 - 2.00 | 0.75 | 0.25 - 0.50 | 1.00 |
| White Pass | 1.50 | 0.50 - 0.75 | LT 0.25 | 0.75 -1.00 |
| Washington Pass | 1.50 | 0.25 - 0.50 | LT 0.25 | 0.25 - 0.50 |
| Mission Ridge | 0.50 - 0.75 | 0.25 | LT 0.10 | 0.25 - 0.50 |
| Salmon la Sac - Gallagher Head | 1.00 - 1.50 | 0.50 - 0.75 | 0.25 | 0.75 |
| Tieton River - Darland Mt. | 1.00 | 0.25 - 0.50 | LT 0.10 | 0.75 -1.00 |
| Mt Hood Meadows | 1.00 - 1.50 | 0.50 | LT 0.10 | 2.00 - 2.50 |
| Timberline | 1.50 | 0.50 - 0.75 | LT 0.10 | 2.50 - 3.50 |
| Hurricane Ridge | Precipitation (in) |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.50 |
| Wednesday Night | LT 0.25 |
| Thursday | 0.25 |
| Mt Baker Ski Area | Precipitation (in) |
|---|---|
| Tuesday Night | 2.00 - 2.50 |
| Wednesday | 0.50 - 0.75 |
| Wednesday Night | 0.50 |
| Thursday | 0.50 - 0.75 |
| Mt. Loop - Barlow Pass | Precipitation (in) |
|---|---|
| Tuesday Night | 2.50 |
| Wednesday | 0.75 -1.00 |
| Wednesday Night | 0.25 - 0.50 |
| Thursday | 0.50 - 0.75 |
| Stevens Pass | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 |
| Wednesday | 0.75 |
| Wednesday Night | 0.25 |
| Thursday | 0.50 |
| Snoqualmie Pass | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 - 2.00 |
| Wednesday | 0.75 |
| Wednesday Night | 0.25 - 0.50 |
| Thursday | 0.75 -1.00 |
| Crystal Mt | Precipitation (in) |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.10 |
| Thursday | 0.75 -1.00 |
| Paradise | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 - 2.00 |
| Wednesday | 0.75 |
| Wednesday Night | 0.25 - 0.50 |
| Thursday | 1.00 |
| White Pass | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 |
| Wednesday | 0.50 - 0.75 |
| Wednesday Night | LT 0.25 |
| Thursday | 0.75 -1.00 |
| Washington Pass | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.25 |
| Thursday | 0.25 - 0.50 |
| Mission Ridge | Precipitation (in) |
|---|---|
| Tuesday Night | 0.50 - 0.75 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | 0.25 - 0.50 |
| Salmon la Sac - Gallagher Head | Precipitation (in) |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.50 - 0.75 |
| Wednesday Night | 0.25 |
| Thursday | 0.75 |
| Tieton River - Darland Mt. | Precipitation (in) |
|---|---|
| Tuesday Night | 1.00 |
| Wednesday | 0.25 - 0.50 |
| Wednesday Night | LT 0.10 |
| Thursday | 0.75 -1.00 |
| Mt Hood Meadows | Precipitation (in) |
|---|---|
| Tuesday Night | 1.00 - 1.50 |
| Wednesday | 0.50 |
| Wednesday Night | LT 0.10 |
| Thursday | 2.00 - 2.50 |
| Timberline | Precipitation (in) |
|---|---|
| Tuesday Night | 1.50 |
| Wednesday | 0.50 - 0.75 |
| Wednesday Night | LT 0.10 |
| Thursday | 2.50 - 3.50 |
Issued: 2:34 PM PST Tuesday, December 16, 2025
Snow Level (ft)
| Tuesday Evening | Tuesday Night | Wednesday Morning | Wednesday Afternoon | Wednesday Evening | Wednesday Night | Thursday Morning* | Thursday Afternoon* | |
|---|---|---|---|---|---|---|---|---|
| Olympics | 7000' | 3000' | 2500' | 2500' | 2500' | 2500' | 3000' | 5500' |
| West North | 6000' | 4000' | 2500' | 2500' | 2500' | 2500' | 2500' | 4000' |
| West Central | 6500' | 5000' | 2500' | 2500' | 2500' | 2500' | 2500' | 4500' |
| West South | 7000' | 6000' | 2500' | 2500' | 2500' | 2500' | 2500' | 5000' |
| Stevens Pass | 6000' | 5000' | 2500' | 2500' | 2500' | 2500' | 2500' | 3000' |
| Snoqualmie Pass | 7000' | 5000' | 2500' | 2500' | 2500' | 2500' | 2500' | 5000' |
| East North | 5000' | 5000' | 2500' | 2500' | 2500' | 2000' | 2500' | 3000' |
| East Central | 5500' | 5500' | 2500' | 2500' | 2500' | 2500' | 2500' | 3000' |
| East South | 7500' | 6000' | 2500' | 2500' | 2500' | 2500' | 2500' | 5000' |
| Mt. Hood | 8000' | 6500' | 2500' | 3000' | 2500' | 2500' | 3500' | 8000' |
| Olympics | Elevation |
|---|---|
| Tuesday Evening | 7000' |
| Tuesday Night | 3000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 3000' |
| Thursday Afternoon* | 5500' |
| West North | Elevation |
|---|---|
| Tuesday Evening | 6000' |
| Tuesday Night | 4000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 4000' |
| West Central | Elevation |
|---|---|
| Tuesday Evening | 6500' |
| Tuesday Night | 5000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 4500' |
| West South | Elevation |
|---|---|
| Tuesday Evening | 7000' |
| Tuesday Night | 6000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 5000' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening | 6000' |
| Tuesday Night | 5000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | 7000' |
| Tuesday Night | 5000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 5000' |
| East North | Elevation |
|---|---|
| Tuesday Evening | 5000' |
| Tuesday Night | 5000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2000' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 3000' |
| East Central | Elevation |
|---|---|
| Tuesday Evening | 5500' |
| Tuesday Night | 5500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 3000' |
| East South | Elevation |
|---|---|
| Tuesday Evening | 7500' |
| Tuesday Night | 6000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 2500' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 2500' |
| Thursday Afternoon* | 5000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | 8000' |
| Tuesday Night | 6500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon | 3000' |
| Wednesday Evening | 2500' |
| Wednesday Night | 2500' |
| Thursday Morning* | 3500' |
| Thursday Afternoon* | 8000' |
Issued: 2:34 PM PST Tuesday, December 16, 2025
5000' Temperatures (°F)
| Tuesday Night | Wednesday | ||
|---|---|---|---|
| Max / Min | Max / Min | ||
| Olympics | 35 / 24 | 24 / 21 | |
| West North | 35 / 26 | 23 / 21 | |
| West Central | 36 / 25 | 23 / 21 | |
| West South | 38 / 25 | 25 / 20 | |
| Stevens Pass | 37 / 25 | 23 / 21 | |
| Snoqualmie Pass | 37 / 25 | 24 / 21 | |
| East North | 32 / 24 | 23 / 21 | |
| East Central | 36 / 24 | 23 / 21 | |
| East South | 40 / 24 | 25 / 20 | |
| Mt. Hood | 42 / 27 | 26 / 22 |
| Olympics | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 35 / 24 |
| Wednesday | 24 / 21 |
| West North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 35 / 26 |
| Wednesday | 23 / 21 |
| West Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 36 / 25 |
| Wednesday | 23 / 21 |
| West South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 38 / 25 |
| Wednesday | 25 / 20 |
| Stevens Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 37 / 25 |
| Wednesday | 23 / 21 |
| Snoqualmie Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 37 / 25 |
| Wednesday | 24 / 21 |
| East North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 32 / 24 |
| Wednesday | 23 / 21 |
| East Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 36 / 24 |
| Wednesday | 23 / 21 |
| East South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 40 / 24 |
| Wednesday | 25 / 20 |
| Mt. Hood | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Tuesday Night | 42 / 27 |
| Wednesday | 26 / 22 |
Issued: 2:34 PM PST Tuesday, December 16, 2025
Ridgeline Winds (mph)
| Tuesday Evening | Tuesday Night | Wednesday Morning | Wednesday Afternoon | |
|---|---|---|---|---|
| Olympics | SW 35-50 | W 40-55 | W 40-55 | W 25-35 |
| West North | SSW 40-55 | WSW 35-50 | W 35-50 | W 20-30 |
| West Central | SW 40-55 | WSW 40-55 | W 40-55 | W 20-30 |
| West South | SW 40-55 | W 40-55 | W 40-55 | W 30-40 |
| Stevens Pass | SSW 25-35 | WSW 35-50 | W 40-55 | W 20-30 |
| Snoqualmie Pass | SSW 40-55 | WSW 40-55 | W 40-55 | W 30-40 |
| East North | SW 25-35 | WSW 40-55 | W 40-55 | W 30-40 |
| East Central | SW 35-50 | WSW 40-55 | W 50-70 | W 40-55 |
| East South | SW 35-50 | W 40-55 | W 45-65 | W 35-50 |
| Mt. Hood | SW 40-55 | WSW 50-70 | W 40-55 | W 35-50 |
| Olympics | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 35-50 |
| Tuesday Night | W 40-55 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 25-35 |
| West North | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SSW 40-55 |
| Tuesday Night | WSW 35-50 |
| Wednesday Morning | W 35-50 |
| Wednesday Afternoon | W 20-30 |
| West Central | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 40-55 |
| Tuesday Night | WSW 40-55 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 20-30 |
| West South | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 40-55 |
| Tuesday Night | W 40-55 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 30-40 |
| Stevens Pass | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SSW 25-35 |
| Tuesday Night | WSW 35-50 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 20-30 |
| Snoqualmie Pass | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SSW 40-55 |
| Tuesday Night | WSW 40-55 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 30-40 |
| East North | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 25-35 |
| Tuesday Night | WSW 40-55 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 30-40 |
| East Central | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 35-50 |
| Tuesday Night | WSW 40-55 |
| Wednesday Morning | W 50-70 |
| Wednesday Afternoon | W 40-55 |
| East South | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 35-50 |
| Tuesday Night | W 40-55 |
| Wednesday Morning | W 45-65 |
| Wednesday Afternoon | W 35-50 |
| Mt. Hood | Ridgeline Winds (mph) |
|---|---|
| Tuesday Evening | SW 40-55 |
| Tuesday Night | WSW 50-70 |
| Wednesday Morning | W 40-55 |
| Wednesday Afternoon | W 35-50 |
Issued: 2:34 PM PST Tuesday, December 16, 2025
Extended Weather Synopsis
The frontal system will deliver heavy precipitation to the south WA Cascades and Mt Hood Thursday night as well, and snow levels will fall overnight. We'll be in cool westerly flow Friday and Saturday with a broad upper level trough offshore. Snow levels will stick below Pass levels and ski area bases as snow showers continue to accumulate several inches of fresh snow each day.
Extended Snow Level (ft)
| Thursday Night | Friday | Friday Night | Saturday | |
|---|---|---|---|---|
| West North | 2500' | 1500' | 1000' | 2000' |
| Snoqualmie Pass | 3500' | 2000' | 1500' | 2500' |
| Mt. Hood | 5500' | 2500' | 2000' | 2500' |
| West North | Elevation |
|---|---|
| Thursday Night | 2500' |
| Friday | 1500' |
| Friday Night | 1000' |
| Saturday | 2000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night | 3500' |
| Friday | 2000' |
| Friday Night | 1500' |
| Saturday | 2500' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night | 5500' |
| Friday | 2500' |
| Friday Night | 2000' |
| Saturday | 2500' |
Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Previous forecast from Dec 16, 2025
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