Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Wednesday night through Friday
We're in a bit of a transition period between weather systems Wednesday night through Friday morning. That means we'll see a decrease in showers in the Washington Cascades Wednesday night and Thursday before our next system approaches Friday afternoon. However, we won't see dry conditions develop. With lots of moisture trapped near the surface, you will probably experience cloudy conditions. Don't be surprised if you encounter a little drizzle, particularly west of the Cascade crest. More widespread precipitation may begin to enter the region Friday afternoon with most of the early moisture focused on the volcanoes and Olympics.
The big story continues to be the mild temperatures, and this doesn't appear to change over our short-term forecast. You may find above freezing temperatures at most trailhead locations. As a result, any precipitation ought to fall as rain with high elevation snow.
Weather Forecast
Hurricane Ridge
| Wednesday Night | Cloudy. Mild. |
| Thursday | Cloudy. Mild. Scattered showers possible. Winds increasing in the afternoon. |
Mt. Baker
| Wednesday Night | Cloudy. |
| Thursday | Cloudy. Scattered showers possible. Winds increasing in the afternoon. |
Washington Pass and Leavenworth
| Wednesday Night | Mostly cloudy. |
| Thursday | Mostly cloudy. Winds increasing in the afternoon. |
Stevens and Snoqualmie Pass
| Wednesday Night | Cloudy. Mild. Light easterly flow developing. |
| Thursday | Cloudy. Mild. Light easterly flow. |
Mt. Rainier, Crystal and White Pass
| Wednesday Night | Cloudy. Mild. |
| Thursday | Cloudy. Mild. |
Mt. Hood
| Wednesday Night | Cloudy. Mild. |
| Thursday | Mostly cloudy. Mild. |
Issued: 2:12 PM PST Wednesday, December 4, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Wednesday Evening | Freezing Level | 6000' | 5000' | 4500' | 5500' | 6000' | 6000' | 6500' | 7000' |
| Wednesday Night | Freezing Level * | 6000' | 4500' | 4500' | 4500' | 5000' | 5500' | 6000' | 7000' |
| Thursday Morning | Freezing Level * | 6500' | 5000' | 4000' | 4000' | 5000' | 6000' | 6500' | 7000' |
| Thursday Afternoon | Freezing Level * | 6500' | 6000' | 5000' | 5000' | 6000' | 6500' | 7000' | 7500' |
| Thursday Evening | Freezing Level * | 7000' | 6000' | 5000' | 5500' | 6000' | 6500' | 7000' | 7500' |
| Thursday Night | Freezing Level * | 7000' | 6500' | 5000' | 6000' | 6500' | 7000' | 7500' | 8000' |
| Friday Morning | Snow Level * | 6000' | 6000' | 4000' | 4500' | 5000' | 5500' | 6000' | 6500' |
| Friday Afternoon | Snow Level * | 6000' | 5500' | 4000' | 4000' | 4500' | 5000' | 5000' | 5000' |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6000' |
| Wednesday Night |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 6500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 7000' (Easterly Flow *) |
| Friday Morning |
Snow Level 6000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 6000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 5000' |
| Wednesday Night |
Freezing Level 4500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 6500' (Easterly Flow *) |
| Friday Morning |
Snow Level 6000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 5500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 4500' |
| Wednesday Night |
Freezing Level 4500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 5000' (Easterly Flow *) |
| Friday Morning |
Snow Level 4000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 5500' |
| Wednesday Night |
Freezing Level 4500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 4000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 6000' (Easterly Flow *) |
| Friday Morning |
Snow Level 4500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6000' |
| Wednesday Night |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 6500' (Easterly Flow *) |
| Friday Morning |
Snow Level 5000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 4500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6000' |
| Wednesday Night |
Freezing Level 5500' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 6500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 7000' (Easterly Flow *) |
| Friday Morning |
Snow Level 5500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 6500' |
| Wednesday Night |
Freezing Level 6000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Thursday Night |
Freezing Level 7500' (Easterly Flow *) |
| Friday Morning |
Snow Level 6000' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 5000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening |
Freezing Level 7000' |
| Wednesday Night |
Freezing Level 7000' (Easterly Flow *) |
| Thursday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Thursday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Thursday Evening |
Freezing Level 7500' (Easterly Flow *) |
| Thursday Night |
Freezing Level 8000' (Easterly Flow *) |
| Friday Morning |
Snow Level 6500' (Easterly Flow *) |
| Friday Afternoon |
Snow Level 5000' (Easterly Flow *) |
* 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
| Wednesday Night | Friday | Friday Night | Friday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | LT 0.10 | LT 0.25 |
| Mt Baker Ski Area | 0 | LT 0.10 | LT 0.10 | LT 0.25 |
| 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 | LT 0.10 |
| Paradise | 0 | 0 | 0 | LT 0.10 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | LT 0.10 |
| Timberline | 0 | 0 | 0 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Friday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Wednesday Night | 0 |
| Friday | 0 |
| Friday Night | 0 |
| Friday | LT 0.10 |
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: 2:12 PM PST Wednesday, December 4, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Wednesday Evening | SSW 5 - 15 | S 5 - 15 | W 5 - 15 | S 5 - 15 | VAR 0 - 10 |
| Wednesday Night | S 5 - 15 | S 5 - 15 | SE 5 - 15 | SE 5 - 15 | SE 5 - 15 |
| Thursday Morning | SW 5 - 15 | S 5 - 15 | SE 5 - 15 | SE 5 - 15 | S 5 - 15 |
| Thursday Afternoon | SW 10 - 20 | S 10 - 20 | S 5 - 15 | S 5 - 15 | SW 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Wednesday Evening | SSW 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Wednesday Evening | S 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Rainier | Elevation |
|---|---|
| Wednesday Evening | S 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Wednesday Evening | SSW 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | SW 5 - 15 |
| Thursday Afternoon | SW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | S 5 - 15 |
| Wednesday Night | S 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | S 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | S 5 - 15 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | SE 5 - 15 |
| Thursday Afternoon | S 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | VAR 0 - 10 |
| Wednesday Night | SE 5 - 15 |
| Thursday Morning | S 5 - 15 |
| Thursday Afternoon | SW 5 - 15 |
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 | |
|---|---|---|---|---|---|
| Wednesday Evening | W 15 - 25 | W 15 - 25 | W 15 - 25 | WSW 10 - 20 | W 5 - 15 |
| Wednesday Night | WSW 15 - 25 | WSW 15 - 25 | WSW 15 - 25 | WSW 15 - 25 | W 10 - 20 |
| Thursday Morning | WSW 15 - 25 | WSW 15 - 25 | W 15 - 25 | W 15 - 25 | W 10 - 20 |
| Thursday Afternoon | SW 20 - 30 | SW 20 - 30 | SW 20 - 30 | SW 15 - 25 | SW 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Wednesday Evening | W 15 - 25 |
| Wednesday Night | WSW 15 - 25 |
| Thursday Morning | WSW 15 - 25 |
| Thursday Afternoon | SW 20 - 30 |
| Washington Pass | Direction - Speed |
|---|---|
| Wednesday Evening | W 15 - 25 |
| Wednesday Night | WSW 15 - 25 |
| Thursday Morning | WSW 15 - 25 |
| Thursday Afternoon | SW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Wednesday Evening | W 15 - 25 |
| Wednesday Night | WSW 15 - 25 |
| Thursday Morning | W 15 - 25 |
| Thursday Afternoon | SW 20 - 30 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Wednesday Evening | WSW 10 - 20 |
| Wednesday Night | WSW 15 - 25 |
| Thursday Morning | W 15 - 25 |
| Thursday Afternoon | SW 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Wednesday Evening | W 5 - 15 |
| Wednesday Night | W 10 - 20 |
| Thursday Morning | W 10 - 20 |
| Thursday Afternoon | SW 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: 2:12 PM PST Wednesday, December 4, 2019
Extended Weather Synopsis for Friday night through Friday
The weather system arriving on Friday afternoon should hang with us into Saturday night before exiting the area. The weather models continue to disagree about how much precipitation will fall across our region. Each model continues to handle the low-pressure system differently as it impacts southern Oregon and California. Sunday appears dry as a ridge of high pressure builds over the eastern Pacific.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Friday Night | Snow Level | 4500' - 5500' | 4500' - 5500' | 5000' - 6000' | * |
| Saturday | Snow Level | 4000' - 5000' | 4000' - 5000' | 4500' - 5500' | * |
| Saturday Night | Snow Level | 4000' - 5000' | 4500' - 5500' | 4500' - 5500' | |
| Sunday | Snow Level | 3500' - 4500' | 3500' - 4500' | 4000' - 5000' |
| Mt. Baker | Elevation |
|---|---|
| Friday Night |
Snow Level 4500' - 5500' (Easterly Flow *) |
| Saturday |
Snow Level 4000' - 5000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4000' - 5000' |
| Sunday |
Snow Level 3500' - 4500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Night |
Snow Level 4500' - 5500' (Easterly Flow *) |
| Saturday |
Snow Level 4000' - 5000' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' - 5500' |
| Sunday |
Snow Level 3500' - 4500' |
| Mt. Hood | Elevation |
|---|---|
| Friday Night |
Snow Level 5000' - 6000' (Easterly Flow *) |
| Saturday |
Snow Level 4500' - 5500' (Easterly Flow *) |
| Saturday Night |
Snow Level 4500' - 5500' |
| Sunday |
Snow Level 4000' - 5000' |
* 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 Dec 3, 2019
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.