Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Tuesday
Post-frontal showers in NW flow aloft racked up a nice 6-12 inches of snow across the west slopes of the Cascades including Mt. Hood through early Monday morning. New snowfall totals and shower activity quickly peters off east of the Cascade crest.
Showers should quickly ease off later this morning along with brisk westerly winds as an upper level ridge builds offshore. A general clearing and drying trend should occur across the area today with sunny skies forecast east of the crest and a mix of afternoon sun and low clouds along the west slopes of the Cascades.
The transitory upper level ridge will pass into the Intermountain West tonight and tomorrow, opening the door to mid and high level clouds to move up from the south overnight. A mature low pressure system well offshore will spin light warm frontal moisture over the area on Tuesday favoring south slopes and the volcanoes. Offshore easterly flow will ramp up quickly overnight through Tuesday and E-SE winds should increase quickly near and west of the Cascade crest from Snoqualmie Pass and southward. The easterly flow will also mute the warming trend during the day. There is a chance for mixed precipitation at Mt. Hood as warmer air overrides cooler air near the surface.
Weather Forecast
Hurricane Ridge
| Monday | Light snow showers in the morning becoming scattered snow showers by late morning. Showers ending and becoming partly to mostly sunny in the afternoon. |
Mt. Baker
| Monday | Light to occasionally moderate snow showers in the morning becoming scattered snow showers by late morning. Showers ending and becoming mostly cloudy in the afternoon. |
Washington Pass and Leavenworth
| Monday | Light snow showers near the Cascade crest, clear further east. Mostly sunny all areas this afternoon. |
Stevens and Snoqualmie Pass
| Monday | Light to occasionally moderate snow showers in the morning becoming scattered snow showers by late morning. Showers ending and becoming partly to mostly cloudy in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Monday | Light to occasionally moderate snow showers in the morning becoming scattered snow showers by late morning. Showers ending and becoming partly to mostly cloudy in the afternoon. |
Mt. Hood
| Monday | Light to occasionally moderate snow showers in the morning becoming scattered snow showers by late morning. Showers ending and becoming partly to mostly cloudy in the afternoon. |
Issued: 6:59 AM PST Monday, January 7, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Monday Morning | Snow Level | 1000' | 1000' | 0' | 0' | 1000' | 1000' | 1000' | 1500' |
| Monday Afternoon | Snow Level | 1000' | 1000' | 0' | 1000' | 1000' | 1000' | 1000' | 2500' |
| Monday Evening | Freezing Level | 1000' | 1000' | 0' | 1000' | 1000' | 1000' | 1000' | 2000' |
| Monday Night | Freezing Level * | 2000' | 1000' | 0' | 500' | 1000' | 1000' | 1500' | 1500' |
| Tuesday Morning | Snow Level * | 1500' | 500' | 0' | 0' | 500' | 500' | 1000' | 1500' |
| Tuesday Afternoon | Snow Level * | 4000' | 1500' | 500' | 500' | 1000' | 1500' | 2000' | 2000' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 2000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 4000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Monday Evening |
Freezing Level 0' |
| Monday Night |
Freezing Level 0' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 0' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 0' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 1000' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Snow Level 1000' |
| Monday Afternoon |
Snow Level 1000' |
| Monday Evening |
Freezing Level 1000' |
| Monday Night |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 1000' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Snow Level 1500' |
| Monday Afternoon |
Snow Level 2500' |
| Monday Evening |
Freezing Level 2000' |
| Monday Night |
Freezing Level 1500' (Easterly Flow *) |
| Tuesday Morning |
Snow Level 1500' (Easterly Flow *) |
| Tuesday Afternoon |
Snow Level 2000' (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
| Monday | Monday Night | Tuesday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.25 | 0 | 0.25 |
| Mt Baker Ski Area | 0.25 - 0.50 | 0 | LT 0.10 |
| Washington Pass | LT 0.10 | 0 | LT 0.10 |
| Leavenworth | LT 0.10 | 0 | LT 0.10 |
| Stevens Pass | 0.25 | 0 | LT 0.25 |
| Snoqualmie Pass | 0.25 | 0 | 0.25 |
| Mission Ridge | LT 0.10 | 0 | LT 0.25 |
| Crystal Mt | LT 0.10 | 0 | 0.25 - 0.50 |
| Paradise | 0.25 | 0 | 0.50 |
| White Pass | LT 0.25 | 0 | LT 0.25 |
| Mt Hood Meadows | 0.25 - 0.50 | LT 0.10 | 0.50 |
| Timberline | 0.25 - 0.50 | LT 0.10 | 0.50 - 0.75 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | 0 |
| Tuesday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | 0.25 - 0.50 |
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Tuesday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | 0 |
| Tuesday | LT 0.25 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | 0 |
| Tuesday | 0.25 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Tuesday | LT 0.25 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | LT 0.10 |
| Monday Night | 0 |
| Tuesday | 0.25 - 0.50 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 0.25 |
| Monday Night | 0 |
| Tuesday | 0.50 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | LT 0.25 |
| Monday Night | 0 |
| Tuesday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0.25 - 0.50 |
| Monday Night | LT 0.10 |
| Tuesday | 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0.25 - 0.50 |
| Monday Night | LT 0.10 |
| Tuesday | 0.50 - 0.75 |
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: 6:59 AM PST Monday, January 7, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | W 10 - 20 | SW 10 - 20 | WSW 15 - 25 | SW 15 - 25 | WSW 15 - 30 |
| Monday Afternoon | SW 5 - 15 | SW 5 - 15 | WSW 10 - 20 | SW 5 - 15 | SW 5 - 15 |
| Monday Evening | E 0 - 10 | E 0 - 10 | E 0 - 10 | E 0 - 10 | SE 5 - 15 |
| Monday Night | ESE 10 - 20 | E 5 - 15 | ESE 10 - 20 | ESE 5 - 15 | ESE 10 - 20 |
| Tuesday Morning | ESE 15 - 25 | E 10 - 20 | ESE 20 - 35 | ESE 20 - 30 | ESE 20 - 30 |
| Tuesday Afternoon | SE 15 - 25 | E 10 - 20 | ESE 20 - 35 | ESE 20 - 30 | ESE 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | W 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 15 - 25 |
| Tuesday Afternoon | SE 15 - 25 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 10 - 20 |
| Tuesday Afternoon | E 10 - 20 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 20 - 35 |
| Tuesday Afternoon | ESE 20 - 35 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 5 - 15 |
| Tuesday Morning | ESE 20 - 30 |
| Tuesday Afternoon | ESE 20 - 30 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | WSW 15 - 30 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | SE 5 - 15 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 20 - 30 |
| Tuesday Afternoon | ESE 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | W 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 15 - 25 |
| Tuesday Afternoon | SE 15 - 25 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | SW 10 - 20 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 10 - 20 |
| Tuesday Afternoon | E 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | WSW 15 - 25 |
| Monday Afternoon | WSW 10 - 20 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 20 - 35 |
| Tuesday Afternoon | ESE 20 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | SW 15 - 25 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | E 0 - 10 |
| Monday Night | ESE 5 - 15 |
| Tuesday Morning | ESE 20 - 30 |
| Tuesday Afternoon | ESE 20 - 30 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | WSW 15 - 30 |
| Monday Afternoon | SW 5 - 15 |
| Monday Evening | SE 5 - 15 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 20 - 30 |
| Tuesday Afternoon | ESE 20 - 30 |
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 | |
|---|---|---|---|---|---|
| Monday Morning | WSW 20 - 30 | W 35 - 45 | W 25 - 35 | W 25 - 35 | W 25 - 35 |
| Monday Afternoon | WSW 15 - 25 | W 30 - 40 | W 20 - 30 | W 25 - 35 | SW 20 - 30 |
| Monday Evening | WNW 10 - 20 | WNW 10 - 20 | W 10 - 20 | WSW 15 - 25 | W 15 - 25 |
| Monday Night | S 5 - 15 | S 5 - 15 | SW 10 - 20 | SW 10 - 20 | SW 20 - 30 |
| Tuesday Morning | S 15 - 25 | S 15 - 25 | S 20 - 30 | S 25 - 35 | S 30 - 40 |
| Tuesday Afternoon | SSW 25 - 35 | SSW 20 - 30 | SSW 25 - 35 | S 35 - 45 | S 30 - 40 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | WSW 20 - 30 |
| Monday Afternoon | WSW 15 - 25 |
| Monday Evening | WNW 10 - 20 |
| Monday Night | S 5 - 15 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | SSW 25 - 35 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | W 35 - 45 |
| Monday Afternoon | W 30 - 40 |
| Monday Evening | WNW 10 - 20 |
| Monday Night | S 5 - 15 |
| Tuesday Morning | S 15 - 25 |
| Tuesday Afternoon | SSW 20 - 30 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 20 - 30 |
| Monday Evening | W 10 - 20 |
| Monday Night | SW 10 - 20 |
| Tuesday Morning | S 20 - 30 |
| Tuesday Afternoon | SSW 25 - 35 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 25 - 35 |
| Monday Evening | WSW 15 - 25 |
| Monday Night | SW 10 - 20 |
| Tuesday Morning | S 25 - 35 |
| Tuesday Afternoon | S 35 - 45 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | W 25 - 35 |
| Monday Afternoon | SW 20 - 30 |
| Monday Evening | W 15 - 25 |
| Monday Night | SW 20 - 30 |
| Tuesday Morning | S 30 - 40 |
| Tuesday Afternoon | S 30 - 40 |
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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan 6, 2019
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