Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Saturday night through Tuesday
A weak north-south oriented frontal band offshore and extending from a low pressure system near the Alaskan Panhandle is running into an upper level ridge, spreading high clouds over the area. High clouds will stick around overnight as the frontal band dissipates and the upper level ridge begins to rebuild offshore.
On Sunday, high pressure will dominate the weather pattern. This high amplitude ridge will split the jet stream around the Pacific Northwest sending storm tracks well to our north or south for the next few days. Offshore flow will increase during the day on Sunday with breezy east winds picking up in the usual locations from roughly Stevens Pass and south to Mt. Hood. That said, freezing levels will continue to rise on Sunday under sunny skies.
Monday should be slightly warmer but offshore easterlies are expected to approach the moderate range in the Cascade Passes, in southwest Cascades, and the Mt. Hood area.
Weather Forecast
Hurricane Ridge
| Saturday Night | Partly to mostly cloudy with high clouds becoming mostly clear after midnight. |
| Sunday | Sunny. Mild. |
Mt. Baker
| Saturday Night | Partly to mostly cloudy with high clouds becoming mostly clear after midnight. |
| Sunday | Sunny. Mild. |
Washington Pass and Leavenworth
| Saturday Night | Partly to mostly cloudy with high clouds becoming mostly clear after midnight. |
| Sunday | Sunny. Mild. |
Stevens and Snoqualmie Pass
| Saturday Night | Partly to mostly cloudy with high clouds becoming mostly clear after midnight. |
| Sunday | Sunny. Mild. Light east wind in the Passes. |
Mt. Rainier, Crystal and White Pass
| Saturday Night | Partly to mostly cloudy with high clouds becoming mostly clear after midnight. |
| Sunday | Sunny. Mild. |
Mt. Hood
| Saturday Night | Partly to mostly cloudy with high clouds. |
| Sunday | Sunny. Mild. Light to moderate east wind mid-elevations. |
Issued: 2:10 PM PDT Saturday, March 16, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Saturday Evening | Freezing Level | 7000' | 6000' | 6000' | 6000' | 6000' | 6000' | 7000' | 7500' |
| Saturday Night | Freezing Level * | 7000' | 6000' | 5500' | 5500' | 6000' | 6000' | 7000' | 7500' |
| Sunday Morning | Freezing Level * | 7000' | 6000' | 5500' | 5500' | 6000' | 6000' | 7000' | 7500' |
| Sunday Afternoon | Freezing Level * | 9000' | 8000' | 7500' | 7500' | 8000' | 8500' | 9000' | 8500' |
| Sunday Evening | Freezing Level * | 9000' | 8000' | 7500' | 7500' | 8000' | 8500' | 9000' | 8500' |
| Sunday Night | Freezing Level * | 9000' | 8000' | 7500' | 7500' | 8000' | 8500' | 9000' | 8500' |
| Monday Morning | Freezing Level * | 9000' | 8000' | 7500' | 7500' | 8000' | 8500' | 9000' | 8500' |
| Monday Afternoon | Freezing Level * | 10000' | 9500' | 8500' | 8000' | 9000' | 9500' | 9500' | 9000' |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 9000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 8000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 8000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 7500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 7500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 8000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 8000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 8500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 8500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 7000' |
| Saturday Night |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Sunday Night |
Freezing Level 9000' (Easterly Flow *) |
| Monday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening |
Freezing Level 7500' |
| Saturday Night |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Sunday Evening |
Freezing Level 8500' (Easterly Flow *) |
| Sunday Night |
Freezing Level 8500' (Easterly Flow *) |
| Monday Morning |
Freezing Level 8500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9000' (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
| Saturday 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 |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Saturday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Saturday 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: 2:10 PM PDT Saturday, March 16, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Saturday Evening | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | E 0 - 10 |
| Sunday Morning | E 0 - 10 | NE 0 - 10 | E 0 - 10 | E 0 - 10 | E 5 - 15 |
| Sunday Afternoon | E 0 - 10 | NE 0 - 10 | E 10 - 20 | E 5 - 15 | E 10 - 20 |
| Hurricane Ridge | Elevation |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | NE 0 - 10 |
| Sunday Afternoon | NE 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 5 - 15 |
| Mt. Hood | Elevation |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | E 0 - 10 |
| Sunday Morning | E 5 - 15 |
| Sunday Afternoon | E 10 - 20 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | NE 0 - 10 |
| Sunday Afternoon | NE 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | VAR 0 - 10 |
| Sunday Morning | E 0 - 10 |
| Sunday Afternoon | E 5 - 15 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | VAR 0 - 10 |
| Saturday Night | E 0 - 10 |
| Sunday Morning | E 5 - 15 |
| Sunday 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 | |
|---|---|---|---|---|---|
| Saturday Evening | W 5 - 15 | W 5 - 15 | W 5 - 15 | W 5 - 15 | WSW 0 - 10 |
| Saturday Night | W 5 - 15 | W 5 - 15 | NW 5 - 15 | NW 5 - 15 | NW 0 - 10 |
| Sunday Morning | NW 0 - 10 | NW 0 - 10 | NW 5 - 15 | NW 0 - 10 | NE 5 - 15 |
| Sunday Afternoon | N 0 - 10 | N 0 - 10 | N 0 - 10 | N 0 - 10 | NE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | NW 0 - 10 |
| Sunday Afternoon | N 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | W 5 - 15 |
| Sunday Morning | NW 0 - 10 |
| Sunday Afternoon | N 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | NW 5 - 15 |
| Sunday Morning | NW 5 - 15 |
| Sunday Afternoon | N 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Saturday Evening | W 5 - 15 |
| Saturday Night | NW 5 - 15 |
| Sunday Morning | NW 0 - 10 |
| Sunday Afternoon | N 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Saturday Evening | WSW 0 - 10 |
| Saturday Night | NW 0 - 10 |
| Sunday Morning | NE 5 - 15 |
| Sunday Afternoon | NE 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.
Issued: 2:10 PM PDT Saturday, March 16, 2019
Extended Weather Synopsis for Tuesday night through Tuesday
The blocking upper level ridge will shift over the Canadian Rockies Tuesday but little change is expected in the sensible weather over the Pacific Northwest with more warmth and dry conditions forecast. By Wednesday, a weak elongated frontal system will approach the nearshore waters. The front will likely not be strong enough to break down the ridge and send precipitation inland, but we may see increasing clouds and the winds aloft should shift to the south along with weakening offshore flow through the Cascade Passes.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Monday Night | Freezing Level | 9000' - 10000' | 9000' - 10000' | 8000' - 9000' | * |
| Tuesday | Freezing Level | 9000' - 10000' | 9000' - 10000' | 8000' - 9000' | * |
| Tuesday Night | Freezing Level | 9000' - 10000' | 9000' - 10000' | 8000' - 9000' | * |
| Wednesday | Freezing Level | 9500' - 10500' | 9500' - 10500' | 8500' - 9500' |
| Mt. Baker | Elevation |
|---|---|
| Monday Night |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Tuesday |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Wednesday |
Freezing Level 9500' - 10500' |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Night |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Tuesday |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 9000' - 10000' (Easterly Flow *) |
| Wednesday |
Freezing Level 9500' - 10500' |
| Mt. Hood | Elevation |
|---|---|
| Monday Night |
Freezing Level 8000' - 9000' (Easterly Flow *) |
| Tuesday |
Freezing Level 8000' - 9000' (Easterly Flow *) |
| Tuesday Night |
Freezing Level 8000' - 9000' (Easterly Flow *) |
| Wednesday |
Freezing Level 8500' - 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.
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 16, 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.