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 Tuesday
Monday set record high temperatures throughout the Puget Sound region and then Tuesday exceeded Monday's records with both days exceeding the previous record for maximum wintertime temperature at Seatac airport. Tuesday night may be the warmest night of the heat wave with strong subsidence warming. Wednesday is on track to be warmer than the pre-existing record once again, but slightly cooler than Tuesday, with the departing broad and strong high-pressure lingering just enough for the subsidence warming, hot air in place at all levels of the atmosphere, and gradually diminishing (moderate) easterly flow to keep temperatures elevated. A NW-SE oriented trough will be impacting California and the SW US and pushing the high pressure and associated ridge eastward into the great plains by Wednesday night. This will bring a shift to light westerly flow and further gradually cooling temperatures, which will continue through Thursday.
Throughout the forecast period, expect mostly sunny skies, above normal to record-setting temperatures, and a lack of precipitation.
Weather Forecast
Hurricane Ridge
| Tuesday Night | A few high clouds possible, but mostly clear and very mild. Light winds. |
| Wednesday | Sunny and very warm. Light to occasionally moderate winds. |
Mt. Baker
| Tuesday Night | Mostly clear and very mild. Light winds. |
| Wednesday | Mostly clear and very warm. Light winds. |
Washington Pass and Leavenworth
| Tuesday Night | Clear and very mild. Light winds in the north, moderate in the south. |
| Wednesday | Sunny and very warm. Light winds in the north, moderate in the south. |
Stevens and Snoqualmie Pass
| Tuesday Night | Clear and very mild. 5000 ft winds and E wind through the passes will be moderate gusting strong. |
| Wednesday | Sunny and very warm. 5000 ft winds and E wind through the passes will be moderate gusting strong. |
Mt. Rainier, Crystal and White Pass
| Tuesday Night | Clear and very mild. Moderate winds gusting strong. |
| Wednesday | Sunny and very warm. Moderate winds gusting strong. |
Mt. Hood
| Tuesday Night | Clear and very mild. Moderate winds gusting strong. |
| Wednesday | Sunny and very warm. Moderate winds gusting strong, decreasing in the afternoon. |
Issued: 2:40 PM PDT Tuesday, March 19, 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 | Freezing Level * | 10000' | 10500' | 9500' | 9500' | 10000' | 10500' | 10500' | 10000' |
| Tuesday Night | Freezing Level * | 10000' | 9000' | 7500' | 9000' | 8500' | 10000' | 9500' | 9500' |
| Wednesday Morning | Freezing Level * | 9500' | 9000' | 8000' | 9000' | 9000' | 10000' | 9500' | 9500' |
| Wednesday Afternoon | Freezing Level * | 9500' | 10000' | 10000' | 9500' | 10000' | 10000' | 9500' | 9500' |
| Wednesday Evening | Freezing Level * | 9000' | 10000' | 9500' | 9000' | 9000' | 9500' | 9000' | 8500' |
| Wednesday Night | Freezing Level | 8500' | 9000' | 7500' | 8500' | 8500' | 8500' | 8000' | 8000' |
| Thursday Morning | Freezing Level | 8000' | 8000' | 7500' | 8500' | 8000' | 8000' | 8000' | 7500' |
| Thursday Afternoon | Freezing Level | 7500' | 8500' | 9000' | 8500' | 8500' | 8500' | 8000' | 7500' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 7500' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 9000' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8500' |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 7500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 7500' |
| Thursday Morning |
Freezing Level 7500' |
| Thursday Afternoon |
Freezing Level 9000' |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8500' |
| Thursday Afternoon |
Freezing Level 8500' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8500' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8000' |
| Thursday Morning |
Freezing Level 8000' |
| Thursday Afternoon |
Freezing Level 8000' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Morning |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Wednesday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Wednesday Night |
Freezing Level 8000' |
| Thursday Morning |
Freezing Level 7500' |
| Thursday Afternoon |
Freezing Level 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.
Precipitation Forecast
| Tuesday Night | Tuesday | Tuesday Night | Tuesday | |
|---|---|---|---|---|
| 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 | 0 | 0 | 0 | 0 |
| 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 | 0 |
| Paradise | 0 | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| 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: 2:40 PM PDT Tuesday, March 19, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | ESE 10 - 20 | E 5 - 15 | E 15 - 25 | E 15 - 25 | E 20 - 30 |
| Tuesday Night | ESE 10 - 20 | E 5 - 15 | E 20 - 30 | E 15 - 25 | E 20 - 30 |
| Wednesday Morning | ESE 5 - 15 | E 5 - 15 | E 15 - 25 | E 10 - 20 | E 20 - 30 |
| Wednesday Afternoon | ESE 10 - 20 | E 5 - 15 | E 15 - 25 | E 10 - 20 | E 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | ESE 10 - 20 |
| Tuesday Night | ESE 10 - 20 |
| Wednesday Morning | ESE 5 - 15 |
| Wednesday Afternoon | ESE 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | E 5 - 15 |
| Tuesday Night | E 5 - 15 |
| Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 20 - 30 |
| Wednesday Morning | E 15 - 25 |
| Wednesday Afternoon | E 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | E 10 - 20 |
| Wednesday Afternoon | E 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | E 20 - 30 |
| Tuesday Night | E 20 - 30 |
| Wednesday Morning | E 20 - 30 |
| Wednesday Afternoon | E 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | ESE 10 - 20 |
| Tuesday Night | ESE 10 - 20 |
| Wednesday Morning | ESE 5 - 15 |
| Wednesday Afternoon | ESE 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | E 5 - 15 |
| Tuesday Night | E 5 - 15 |
| Wednesday Morning | E 5 - 15 |
| Wednesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 20 - 30 |
| Wednesday Morning | E 15 - 25 |
| Wednesday Afternoon | E 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | E 15 - 25 |
| Tuesday Night | E 15 - 25 |
| Wednesday Morning | E 10 - 20 |
| Wednesday Afternoon | E 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | E 20 - 30 |
| Tuesday Night | E 20 - 30 |
| Wednesday Morning | E 20 - 30 |
| Wednesday Afternoon | E 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.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | SSE 15 - 25 | SE 15 - 25 | SE 30 - 45 | SE 30 - 45 | SE 30 - 45 |
| Tuesday Night | SE 15 - 25 | SE 20 - 30 | SE 30 - 45 | SE 30 - 45 | ESE 30 - 45 |
| Wednesday Morning | ESE 10 - 20 | ESE 15 - 25 | ESE 35 - 50 | ESE 35 - 50 | E 25 - 35 |
| Wednesday Afternoon | ESE 5 - 15 | ESE 15 - 25 | ESE 35 - 50 | ESE 35 - 50 | ESE 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | SSE 15 - 25 |
| Tuesday Night | SE 15 - 25 |
| Wednesday Morning | ESE 10 - 20 |
| Wednesday Afternoon | ESE 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Tuesday Evening | SE 15 - 25 |
| Tuesday Night | SE 20 - 30 |
| Wednesday Morning | ESE 15 - 25 |
| Wednesday Afternoon | ESE 15 - 25 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | SE 30 - 45 |
| Tuesday Night | SE 30 - 45 |
| Wednesday Morning | ESE 35 - 50 |
| Wednesday Afternoon | ESE 35 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | SE 30 - 45 |
| Tuesday Night | SE 30 - 45 |
| Wednesday Morning | ESE 35 - 50 |
| Wednesday Afternoon | ESE 35 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | SE 30 - 45 |
| Tuesday Night | ESE 30 - 45 |
| Wednesday Morning | E 25 - 35 |
| Wednesday Afternoon | ESE 25 - 35 |
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: 2:40 PM PDT Tuesday, March 19, 2019
Extended Weather Synopsis for Tuesday night through Tuesday
Thursday night and Friday morning a stretched-out front associated with a Gulf of Alaska low will enter the near-shore waters, weakening as it spreads rain and high-elevation snow to our mountains along with gradually cooling temperatures and light southerly winds aloft. Weak troughing will be over the region on Saturday with a few light rain or snow showers possible and temperatures finally approaching seasonal norms.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Thursday Night | Freezing Level | 7500' - 8500' | 7500' - 8500' | 7000' - 8000' | |
| Friday | Snow Level | 6000' - 7000' | 6000' - 7000' | 5500' - 6500' | |
| Friday Night | Snow Level | 4500' - 6500' | 4500' - 6500' | 4000' - 6000' | |
| Saturday | Snow Level | 3000' - 4000' | 3000' - 4000' | 3000' - 4000' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Freezing Level 7500' - 8500' |
| Friday |
Snow Level 6000' - 7000' |
| Friday Night |
Snow Level 4500' - 6500' |
| Saturday |
Snow Level 3000' - 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Freezing Level 7500' - 8500' |
| Friday |
Snow Level 6000' - 7000' |
| Friday Night |
Snow Level 4500' - 6500' |
| Saturday |
Snow Level 3000' - 4000' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Freezing Level 7000' - 8000' |
| Friday |
Snow Level 5500' - 6500' |
| Friday Night |
Snow Level 4000' - 6000' |
| Saturday |
Snow Level 3000' - 4000' |
* 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 Mar 19, 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.