Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Monday & Tuesday
A strong high aloft drifts west to east across south-central British Columbia and dominates our weather pattern in the short-range bringing the region strong sunshine and near-record to record-setting high temperatures in many locations near and west of the Cascade Crest and Olympic mountains Monday and Tuesday. Higher surface pressure east of the Cascades drives moderate E winds through the Cascade passes, which will accelerate down-slope to produce locally strong to very strong winds west of the mountain gaps. The cold pool east of the Cascade Crest is quite shallow on Monday morning. While below-freezing temperatures exist in some locations, temperatures are inverted near the surface and above freezing in all locations at 5,000 ft where temperatures will be approximately 10 F warmer to the west of the crest. Strong sunshine will warm the surface and mix out any inversion conditions by late morning and the shallow inversion will re-develop during the evening hours. Little change to the weather pattern is expected over the short-term, but upper-elevation winds across the Cascade barrier may increase slightly to peak on Tuesday.
If you head to the mountains, prepare for warm weather, but factor in the wind chill.
Weather Forecast
Hurricane Ridge
| Monday | Sunny and unseasonably warm. Light to moderate winds. |
Mt. Baker
| Monday | Sunny and unseasonably warm. Light winds. |
Washington Pass and Leavenworth
| Monday | Sunny and unseasonably warm. Light to moderate winds in the north, moderate in the south. |
Stevens and Snoqualmie Pass
| Monday | Sunny and unseasonably warm, particularly west of the passes. Slight inversion possible in the morning. Moderate winds in the mountain gaps. Strong winds west of the passes. |
Mt. Rainier, Crystal and White Pass
| Monday | Sunny and unseasonably warm. Increasing moderate winds gusting strong. |
Mt. Hood
| Monday | Sunny and unseasonably warm. Moderate to strong winds. |
Issued: 6:58 AM PDT Monday, March 18, 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 | Freezing Level * | 10000' | 7500' | 7000' | 7000' | 7000' | 8500' | 8500' | 8500' |
| Monday Afternoon | Freezing Level * | 10500' | 10000' | 9500' | 9000' | 9500' | 10000' | 9500' | 9500' |
| Monday Evening | Freezing Level * | 10500' | 10000' | 9500' | 9000' | 9500' | 10500' | 10000' | 9500' |
| Monday Night | Freezing Level * | 10500' | 8500' | 7500' | 8000' | 8000' | 9500' | 8500' | 9000' |
| Tuesday Morning | Freezing Level * | 10000' | 8000' | 8000' | 8000' | 8000' | 10000' | 9000' | 9500' |
| Tuesday Afternoon | Freezing Level * | 10000' | 10000' | 9500' | 9000' | 9500' | 10000' | 9500' | 9500' |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 10500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Monday Night |
Freezing Level 10500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Monday Night |
Freezing Level 8500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Monday Night |
Freezing Level 7500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Monday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 9000' (Easterly Flow *) |
| Monday Night |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 9000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Monday Night |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 8000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning |
Freezing Level 8500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Monday Evening |
Freezing Level 10500' (Easterly Flow *) |
| Monday Night |
Freezing Level 9500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 10000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 10000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Monday Morning |
Freezing Level 8500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 10000' (Easterly Flow *) |
| Monday Night |
Freezing Level 8500' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 9000' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning |
Freezing Level 8500' (Easterly Flow *) |
| Monday Afternoon |
Freezing Level 9500' (Easterly Flow *) |
| Monday Evening |
Freezing Level 9500' (Easterly Flow *) |
| Monday Night |
Freezing Level 9000' (Easterly Flow *) |
| Tuesday Morning |
Freezing Level 9500' (Easterly Flow *) |
| Tuesday Afternoon |
Freezing Level 9500' (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 | 0 | 0 | 0 |
| Mt Baker Ski Area | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | 0 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 |
| Mission Ridge | 0 | 0 | 0 |
| Crystal Mt | 0 | 0 | 0 |
| Paradise | 0 | 0 | 0 |
| White Pass | 0 | 0 | 0 |
| Mt Hood Meadows | 0 | 0 | 0 |
| Timberline | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday Night | 0 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Monday | 0 |
| Monday 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: 6:58 AM PDT Monday, March 18, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Monday Morning | E 10 - 20 | E 5 - 15 | E 10 - 20 | E 10 - 20 | E 25 - 35 |
| Monday Afternoon | E 10 - 20 | E 5 - 15 | E 15 - 25 | E 15 - 25 | E 25 - 35 |
| Monday Evening | E 15 - 25 | E 5 - 15 | E 15 - 25 | E 15 - 25 | E 25 - 35 |
| Monday Night | ESE 10 - 20 | E 5 - 15 | ESE 15 - 25 | ESE 15 - 25 | ESE 20 - 30 |
| Tuesday Morning | ESE 10 - 20 | E 5 - 15 | E 15 - 25 | E 15 - 25 | E 25 - 35 |
| Tuesday Afternoon | ESE 10 - 20 | E 5 - 15 | E 15 - 25 | E 15 - 25 | E 20 - 30 |
| Hurricane Ridge | Elevation |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 10 - 20 |
| Tuesday Afternoon | ESE 10 - 20 |
| Mt. Baker | Elevation |
|---|---|
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Monday Evening | E 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 15 - 25 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | E 15 - 25 |
| Tuesday Afternoon | E 15 - 25 |
| Mt. Rainier | Elevation |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 15 - 25 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | E 15 - 25 |
| Tuesday Afternoon | E 15 - 25 |
| Mt. Hood | Elevation |
|---|---|
| Monday Morning | E 25 - 35 |
| Monday Afternoon | E 25 - 35 |
| Monday Evening | E 25 - 35 |
| Monday Night | ESE 20 - 30 |
| Tuesday Morning | E 25 - 35 |
| Tuesday Afternoon | E 20 - 30 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 10 - 20 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 10 - 20 |
| Tuesday Morning | ESE 10 - 20 |
| Tuesday Afternoon | ESE 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Monday Evening | E 5 - 15 |
| Monday Night | E 5 - 15 |
| Tuesday Morning | E 5 - 15 |
| Tuesday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 15 - 25 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | E 15 - 25 |
| Tuesday Afternoon | E 15 - 25 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | E 15 - 25 |
| Monday Evening | E 15 - 25 |
| Monday Night | ESE 15 - 25 |
| Tuesday Morning | E 15 - 25 |
| Tuesday Afternoon | E 15 - 25 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | E 25 - 35 |
| Monday Afternoon | E 25 - 35 |
| Monday Evening | E 25 - 35 |
| Monday Night | ESE 20 - 30 |
| Tuesday Morning | E 25 - 35 |
| Tuesday Afternoon | E 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 | E 10 - 20 | E 10 - 20 | E 25 - 35 | E 30 - 45 | E 35 - 50 |
| Monday Afternoon | ESE 5 - 15 | ESE 10 - 20 | E 30 - 45 | E 35 - 50 | ESE 25 - 35 |
| Monday Evening | ESE 5 - 15 | SE 15 - 25 | ESE 30 - 45 | ESE 30 - 45 | ESE 25 - 35 |
| Monday Night | SE 5 - 15 | SE 15 - 25 | ESE 25 - 35 | ESE 25 - 35 | SE 20 - 30 |
| Tuesday Morning | SE 10 - 20 | SE 20 - 30 | ESE 25 - 35 | ESE 25 - 35 | SE 25 - 35 |
| Tuesday Afternoon | SE 15 - 25 | SE 25 - 35 | ESE 35 - 50 | SE 35 - 50 | SE 25 - 35 |
| Mt. Baker | Direction - Speed |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | ESE 5 - 15 |
| Monday Evening | ESE 5 - 15 |
| Monday Night | SE 5 - 15 |
| Tuesday Morning | SE 10 - 20 |
| Tuesday Afternoon | SE 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Monday Morning | E 10 - 20 |
| Monday Afternoon | ESE 10 - 20 |
| Monday Evening | SE 15 - 25 |
| Monday Night | SE 15 - 25 |
| Tuesday Morning | SE 20 - 30 |
| Tuesday Afternoon | SE 25 - 35 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Monday Morning | E 25 - 35 |
| Monday Afternoon | E 30 - 45 |
| Monday Evening | ESE 30 - 45 |
| Monday Night | ESE 25 - 35 |
| Tuesday Morning | ESE 25 - 35 |
| Tuesday Afternoon | ESE 35 - 50 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Monday Morning | E 30 - 45 |
| Monday Afternoon | E 35 - 50 |
| Monday Evening | ESE 30 - 45 |
| Monday Night | ESE 25 - 35 |
| Tuesday Morning | ESE 25 - 35 |
| Tuesday Afternoon | SE 35 - 50 |
| Mt. Hood | Direction - Speed |
|---|---|
| Monday Morning | E 35 - 50 |
| Monday Afternoon | ESE 25 - 35 |
| Monday Evening | ESE 25 - 35 |
| Monday Night | SE 20 - 30 |
| Tuesday Morning | SE 25 - 35 |
| Tuesday Afternoon | SE 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Mar 17, 2019
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