Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Weather Synopsis
After a rather quiet day, things are starting to change. The first hints of our next storm are already becoming apparent across the mountains. High clouds have begun to push in from the SE and ridgeline winds switched to the S-SE. Even the first bands of precipitation are showing off the coast on radar.
This storm will move inland overnight and looks eerily similar to our storm from Sunday night/Monday morning. Precipitation moves from SSW to NNE across the area. It should reach locations near and south of I-90 in the mid to late evening (6-10 pm) before spreading northward around midnight. Weather models look juicier this afternoon than this morning. Favored locations like Mt Baker, Mt Saint Helens, Mt Hood, Crystal, and Mt Rainier could see near or above an inch of water. With southeasterly winds, upslope precipitation along the eastern forecast zones favors areas like the Wenatchee Mountains.
While the precipitation is impressive, the gusty winds will make this event feel particularly stormy. Winds increase significantly in the evening and remain strong until they finally shift more westerly sometime tomorrow morning. East flow in the passes should keep Stevens and White Pass as snow, and maybe a rain-snow mix at Snoqualmie. As winds turn W, expect a slight bump in temperatures that could bring a brief period of rain or mixed precipitation to all the passes.
Showers linger through the morning hours focussed mainly on the west slopes of the Cascades and Passes. As we move into the afternoon, showers wane and you could even see sun breaks, particularly in the southern and eastern areas. This sets us up for a quiet Christmas Eve for Santa to visit good little girls and boys.
Christmas morning looks cloudy, cool, and calm. This won't last long, a parade of strong storms is set to impact the region starting late in the day. It's hard to say when the first wave of precipitation will arrive. It could be before sunset or it might hold off until the evening. Either way, get out and enjoy the new toys early before the weather turns.
Weather Forecast
| Monday Night | Stormy with strong and gusty winds and periods of heavy precipitation. |
|---|---|
| Tuesday | Cloudy with showers in the morning. Sun breaks in the afternoon. Moderate SW winds decreasing. |
| Monday Night | Stormy conditions developing. Strong and gusty winds with periods of heavy precipitation. |
|---|---|
| Tuesday | Stormy conditions continuing in the morning, then becoming showery. A few sun breaks possible. Moderate SW winds. |
| Monday Night | Stormy conditions developing overnight with strong and gusty winds and periods of heavy precipitation. |
|---|---|
| Tuesday | Stormy conditions continue in the morning, then becoming showery. A few sun breaks possible in the afternoon. Light to moderate WSW winds. |
| Monday Night | Stormy conditions developing in the late evening with strong and gusty winds and periods of heavy precipiation. Snow heaviest near Mt Saint Helens, Mt Rainier, and Crystal Mt. |
|---|---|
| Tuesday | Showers mainly in the morning, becoming more isolated in the afternoon. Sun breaks possible. Light to moderate WSW winds. |
| Monday Night | Cloudy with rain and snow developing in the late evening. E flow maintaining snow at pass level. Moderate but gusty E-SE winds. |
|---|---|
| Tuesday | A slight bump in temperatures as E flow turns W in the morning. Showers becoming more isolated with some low clouds and sun breaks in the afternoon. W winds becoming light to moderate. |
| Monday Night | Cloudy with rain and snow developing in the late evening. Moderate and gusty E flow could maintain a rain/snow mix at pass level. Strong and gusty SE ridgeline winds decreasing slightly. |
|---|---|
| Tuesday | A slight bump in temperatures as E flow turns W in the morning with rain at pass level. Cooling with showers in the afternoon. A few sun breaks and low clouds possible late in the day. Winds becoming moderate W. |
| Monday Night | Clouds thickening and lowering with rain and snow mainly after midnight. Precipitation could be heaviest in the eastern and southern portions of the zone. Moderate but gusty ridgeline winds. |
|---|---|
| Tuesday | Showers mainly in the morning, particularly near the crest. Isolated showers and sun breaks in the afternoon. |
| Monday Night | Clouds thickening and lowering with rain and snow developing in the late evening. Precipitation should be heaviest in the Wenatchee, Teanaway, and Enchantment Ranges. Moderate to strong and gusty S winds. |
|---|---|
| Tuesday | Showers mainly in the morning and close to the crest. Isolated showers and sun breaks in the afternoon. Light to moderate westerly winds increasing slightly. |
| Monday Night | Cloudy with rain and snow developing in the late evening. Precipitation could be heaviest near Ahtanum Meadows. Strong and gusty SSE winds decreasing slightly and turning SSW. |
|---|---|
| Tuesday | Showers in the morning mainly along the crest. Isolated showers with sun breaks in the afternoon. WSW winds becoming moderate to strong. |
| Monday Night | Stormy conditions with very strong and gusty winds and periods of heavy precipitation. |
|---|---|
| Tuesday | Rain and snow showers, mainly in the morning. Sun breaks possible in the afternoon. Light to moderate westerly winds becoming moderate to strong. |
Issued: 2:38 PM PST Monday, December 23, 2024
Precipitation (in)
| Monday Night | Tuesday | Tuesday Night | Wednesday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.25 | LT 0.10 | LT 0.10 | 0.50 |
| Mt Baker Ski Area | 1.00 - 1.50 | 0.25 - 0.50 | LT 0.25 | 0.50 |
| Mt. Loop - Barlow Pass | 1.00 | 0.25 | 0.25 | 0.25 |
| Stevens Pass | 0.25 - 0.50 | 0.25 | LT 0.25 | LT 0.25 |
| Snoqualmie Pass | 0.25 - 0.50 | 0.25 | LT 0.25 | LT 0.25 |
| Crystal Mt | 0.75 | LT 0.10 | LT 0.10 | LT 0.25 |
| Paradise | 0.75 | 0.25 | LT 0.10 | 0.25 |
| White Pass | 0.25 - 0.50 | LT 0.25 | LT 0.10 | LT 0.25 |
| Washington Pass | 0.25 - 0.50 | LT 0.25 | LT 0.10 | LT 0.10 |
| Mission Ridge | 0.25 | LT 0.10 | 0 | LT 0.10 |
| Salmon la Sac - Gallagher Head | 0.25 - 0.50 | LT 0.25 | LT 0.10 | LT 0.25 |
| Tieton River - Darland Mt. | 0.50 | LT 0.10 | 0 | LT 0.10 |
| Mt Hood Meadows | 1.00 | 0.25 | LT 0.10 | LT 0.25 |
| Timberline | 1.00 - 1.50 | 0.25 - 0.50 | LT 0.10 | LT 0.25 |
| Hurricane Ridge | Precipitation (in) |
|---|---|
| Monday Night | 0.25 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0.50 |
| Mt Baker Ski Area | Precipitation (in) |
|---|---|
| Monday Night | 1.00 - 1.50 |
| Tuesday | 0.25 - 0.50 |
| Tuesday Night | LT 0.25 |
| Wednesday | 0.50 |
| Mt. Loop - Barlow Pass | Precipitation (in) |
|---|---|
| Monday Night | 1.00 |
| Tuesday | 0.25 |
| Tuesday Night | 0.25 |
| Wednesday | 0.25 |
| Stevens Pass | Precipitation (in) |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Tuesday | 0.25 |
| Tuesday Night | LT 0.25 |
| Wednesday | LT 0.25 |
| Snoqualmie Pass | Precipitation (in) |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Tuesday | 0.25 |
| Tuesday Night | LT 0.25 |
| Wednesday | LT 0.25 |
| Crystal Mt | Precipitation (in) |
|---|---|
| Monday Night | 0.75 |
| Tuesday | LT 0.10 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Paradise | Precipitation (in) |
|---|---|
| Monday Night | 0.75 |
| Tuesday | 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | 0.25 |
| White Pass | Precipitation (in) |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Washington Pass | Precipitation (in) |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Mission Ridge | Precipitation (in) |
|---|---|
| Monday Night | 0.25 |
| Tuesday | LT 0.10 |
| Tuesday Night | 0 |
| Wednesday | LT 0.10 |
| Salmon la Sac - Gallagher Head | Precipitation (in) |
|---|---|
| Monday Night | 0.25 - 0.50 |
| Tuesday | LT 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Tieton River - Darland Mt. | Precipitation (in) |
|---|---|
| Monday Night | 0.50 |
| Tuesday | LT 0.10 |
| Tuesday Night | 0 |
| Wednesday | LT 0.10 |
| Mt Hood Meadows | Precipitation (in) |
|---|---|
| Monday Night | 1.00 |
| Tuesday | 0.25 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Timberline | Precipitation (in) |
|---|---|
| Monday Night | 1.00 - 1.50 |
| Tuesday | 0.25 - 0.50 |
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
Issued: 2:38 PM PST Monday, December 23, 2024
Snow Level (ft)
| Monday Evening* | Monday Night* | Tuesday Morning | Tuesday Afternoon | Tuesday Evening | Tuesday Night | Wednesday Morning | Wednesday Afternoon* | |
|---|---|---|---|---|---|---|---|---|
| Olympics | 6500' | 5000' | 3500' | 3000' | 3000' | 2500' | 3000' | 3000' |
| West North | 5000' | 3500' | 3500' | 3500' | 3000' | 2500' | 2500' | 3000' |
| West Central | 6000' | 3500' | 3500' | 3500' | 3000' | 2500' | 2500' | 3000' |
| West South | 6000' | 3500' | 4000' | 4000' | 3000' | 2500' | 2500' | 3000' |
| Stevens Pass | 4500' | 3500' | 4000' | 3500' | 3000' | 2500' | 2500' | 3000' |
| Snoqualmie Pass | 6000' | 3500' | 4000' | 3500' | 3000' | 2500' | 2500' | 3000' |
| East North | 4000' | 3500' | 3500' | 3500' | 3000' | 1500' | 1500' | 2500' |
| East Central | 4500' | 3500' | 3500' | 3500' | 3000' | 1500' | 2000' | 2500' |
| East South | 5500' | 3500' | 4000' | 3500' | 3000' | 1500' | 2500' | 3000' |
| Mt. Hood | 8000' | 6000' | 5500' | 4000' | 3500' | 3000' | 2500' | 3500' |
| Olympics | Elevation |
|---|---|
| Monday Evening* | 6500' |
| Monday Night* | 5000' |
| Tuesday Morning | 3500' |
| Tuesday Afternoon | 3000' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 3000' |
| Wednesday Afternoon* | 3000' |
| West North | Elevation |
|---|---|
| Monday Evening* | 5000' |
| Monday Night* | 3500' |
| Tuesday Morning | 3500' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| West Central | Elevation |
|---|---|
| Monday Evening* | 6000' |
| Monday Night* | 3500' |
| Tuesday Morning | 3500' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| West South | Elevation |
|---|---|
| Monday Evening* | 6000' |
| Monday Night* | 3500' |
| Tuesday Morning | 4000' |
| Tuesday Afternoon | 4000' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| Stevens Pass | Elevation |
|---|---|
| Monday Evening* | 4500' |
| Monday Night* | 3500' |
| Tuesday Morning | 4000' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Evening* | 6000' |
| Monday Night* | 3500' |
| Tuesday Morning | 4000' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 2500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| East North | Elevation |
|---|---|
| Monday Evening* | 4000' |
| Monday Night* | 3500' |
| Tuesday Morning | 3500' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 1500' |
| Wednesday Morning | 1500' |
| Wednesday Afternoon* | 2500' |
| East Central | Elevation |
|---|---|
| Monday Evening* | 4500' |
| Monday Night* | 3500' |
| Tuesday Morning | 3500' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 1500' |
| Wednesday Morning | 2000' |
| Wednesday Afternoon* | 2500' |
| East South | Elevation |
|---|---|
| Monday Evening* | 5500' |
| Monday Night* | 3500' |
| Tuesday Morning | 4000' |
| Tuesday Afternoon | 3500' |
| Tuesday Evening | 3000' |
| Tuesday Night | 1500' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3000' |
| Mt. Hood | Elevation |
|---|---|
| Monday Evening* | 8000' |
| Monday Night* | 6000' |
| Tuesday Morning | 5500' |
| Tuesday Afternoon | 4000' |
| Tuesday Evening | 3500' |
| Tuesday Night | 3000' |
| Wednesday Morning | 2500' |
| Wednesday Afternoon* | 3500' |
Issued: 2:38 PM PST Monday, December 23, 2024
5000' Temperatures (°F)
| Monday Night | Tuesday | ||
|---|---|---|---|
| Max / Min | Max / Min | ||
| Olympics | 34 / 28 | 27 / 25 | |
| West North | 34 / 29 | 31 / 26 | |
| West Central | 32 / 28 | 30 / 27 | |
| West South | 34 / 27 | 32 / 24 | |
| Stevens Pass | 33 / 27 | 30 / 26 | |
| Snoqualmie Pass | 32 / 27 | 30 / 26 | |
| East North | 28 / 25 | 29 / 22 | |
| East Central | 31 / 26 | 30 / 24 | |
| East South | 32 / 27 | 30 / 25 | |
| Mt. Hood | 34 / 29 | 32 / 26 |
| Olympics | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 34 / 28 |
| Tuesday | 27 / 25 |
| West North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 34 / 29 |
| Tuesday | 31 / 26 |
| West Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 32 / 28 |
| Tuesday | 30 / 27 |
| West South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 34 / 27 |
| Tuesday | 32 / 24 |
| Stevens Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 33 / 27 |
| Tuesday | 30 / 26 |
| Snoqualmie Pass | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 32 / 27 |
| Tuesday | 30 / 26 |
| East North | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 28 / 25 |
| Tuesday | 29 / 22 |
| East Central | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 31 / 26 |
| Tuesday | 30 / 24 |
| East South | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 32 / 27 |
| Tuesday | 30 / 25 |
| Mt. Hood | 5000' Temperature Forecast (Max / Min) |
|---|---|
| Monday Night | 34 / 29 |
| Tuesday | 32 / 26 |
Issued: 2:38 PM PST Monday, December 23, 2024
Ridgeline Winds (mph)
| Monday Evening | Monday Night | Tuesday Morning | Tuesday Afternoon | |
|---|---|---|---|---|
| Olympics | SSE 30-40 | SW 25-35 | SW 15-25 | SW 10-20 |
| West North | SSE 30-40 | S 20-30 | SW 15-25 | SW 15-25 |
| West Central | SE 25-35 | SSW 15-25 | SW 10-20 | SW 10-20 |
| West South | SE 25-35 | SSW 10-20 | WSW 10-20 | WSW 10-20 |
| Stevens Pass | SE 15-25 | SE 10-20 | W 5-15 | W 10-20 |
| Snoqualmie Pass | SE 25-35 | SE 15-25 | WSW 10-20 | W 15-25 |
| East North | S 15-25 | SSE 15-25 | SW 5-15 | WSW 5-15 |
| East Central | SSE 20-30 | S 20-30 | WSW 10-20 | W 15-25 |
| East South | SSE 25-35 | SSW 15-25 | WSW 10-20 | WSW 20-30 |
| Mt. Hood | S 30-40 | SW 20-30 | WSW 10-20 | W 20-30 |
| Olympics | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SSE 30-40 |
| Monday Night | SW 25-35 |
| Tuesday Morning | SW 15-25 |
| Tuesday Afternoon | SW 10-20 |
| West North | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SSE 30-40 |
| Monday Night | S 20-30 |
| Tuesday Morning | SW 15-25 |
| Tuesday Afternoon | SW 15-25 |
| West Central | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SE 25-35 |
| Monday Night | SSW 15-25 |
| Tuesday Morning | SW 10-20 |
| Tuesday Afternoon | SW 10-20 |
| West South | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SE 25-35 |
| Monday Night | SSW 10-20 |
| Tuesday Morning | WSW 10-20 |
| Tuesday Afternoon | WSW 10-20 |
| Stevens Pass | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SE 15-25 |
| Monday Night | SE 10-20 |
| Tuesday Morning | W 5-15 |
| Tuesday Afternoon | W 10-20 |
| Snoqualmie Pass | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SE 25-35 |
| Monday Night | SE 15-25 |
| Tuesday Morning | WSW 10-20 |
| Tuesday Afternoon | W 15-25 |
| East North | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | S 15-25 |
| Monday Night | SSE 15-25 |
| Tuesday Morning | SW 5-15 |
| Tuesday Afternoon | WSW 5-15 |
| East Central | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SSE 20-30 |
| Monday Night | S 20-30 |
| Tuesday Morning | WSW 10-20 |
| Tuesday Afternoon | W 15-25 |
| East South | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | SSE 25-35 |
| Monday Night | SSW 15-25 |
| Tuesday Morning | WSW 10-20 |
| Tuesday Afternoon | WSW 20-30 |
| Mt. Hood | Ridgeline Winds (mph) |
|---|---|
| Monday Evening | S 30-40 |
| Monday Night | SW 20-30 |
| Tuesday Morning | WSW 10-20 |
| Tuesday Afternoon | W 20-30 |
Issued: 2:38 PM PST Monday, December 23, 2024
Extended Weather Synopsis
The long-range forecast looks wet and wild! Storm after storm will slam into the Pacific Northwest bringing periods of heavy snow and strong winds. Some of these could be doozies! As mentioned, the first round of snow starts Christmas Evening with additional bouts of moisture Thursday night and Friday afternoon. Basically about every 24 hours another storm slams into the area. Right now how wet, warm, and windy each storm becomes is a bit unclear. We'll have to see how the models deal with this very active stormy period.
Extended Snow Level (ft)
| Wednesday Night* | Thursday | Thursday Night* | Friday | |
|---|---|---|---|---|
| West North | 3000' | 3500' | 3000' | 3500' |
| Snoqualmie Pass | 3500' | 4000' | 3500' | 4000' |
| Mt. Hood | 4500' | 5000' | 4500' | 5000' |
| West North | Elevation |
|---|---|
| Wednesday Night* | 3000' |
| Thursday | 3500' |
| Thursday Night* | 3000' |
| Friday | 3500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Night* | 3500' |
| Thursday | 4000' |
| Thursday Night* | 3500' |
| Friday | 4000' |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Night* | 4500' |
| Thursday | 5000' |
| Thursday Night* | 4500' |
| Friday | 5000' |
Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather
Previous forecast from Dec 23, 2024
The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.