Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Friday & Saturday
A cold upper low sits over western Washington with a very weak surface low swinging limited moisture into the region, with appreciable amounts expected mostly south of I-90. The SW Washington and Mt. Hood areas could see up to 0.25" of snow water equivalent in some areas, but the timing and location of bands of showers have been difficult to predict as the surface low slides gradually SE, spinning bands of moisture around it as it moves. Periods of sunshine over many areas of Washington State will allow the low-levels of the atmosphere to warm up and with very cold air aloft, instability showers can be expected to develop even as the trough dynamic forcing wanes later this afternoon. Visibility may decrease drastically in one of these convective snow showers with a quick round of graupel or moderate-intensity snowfall in some locations.
Snow shower activity should taper and end during the evening hours in the Mt. Rainier area, lingering through the overnight areas around Mt. Hood. Many areas will experience clearing skies, calm winds, and strong radiational cooling.
Saturday should be mostly sunny, fair weather with a chance of a few flurries in the southern parts of the forecast region as the upper and surface lows drift further SE of the region, gradually replaced by a weak wedge of high pressure. Expect a slightly warmer day on Saturday than Friday, but temperatures remain well below seasonal norms.
Weather Forecast
Hurricane Ridge
| Friday | Mostly cloudy with flurries in the morning hours, then becoming partly cloudy in the afternoon. Light or variable winds. |
Mt. Baker
| Friday | Mostly cloudy with flurries in the morning hours. Convective clouds developing in the afternoon, possibly bringing brief moderate snowfall to isolated areas. Light or variable winds. |
Washington Pass and Leavenworth
| Friday | Mostly cloudy with flurries in the morning hours. Convective clouds developing in the afternoon, possibly bringing brief moderate snowfall to isolated areas. Light or variable winds. |
Stevens and Snoqualmie Pass
| Friday | Mostly cloudy with flurries in the morning hours. Convective clouds developing in the afternoon, possibly bringing brief moderate snowfall to isolated areas. Light W wind at pass level and at 5000 ft. |
Mt. Rainier, Crystal and White Pass
| Friday | Periods of light snow with some sun breaks. Light or variable wind. |
Mt. Hood
| Friday | Periods of light snow developing around 10 AM and continuing on and off through the day. Light winds. |
Issued: 7:03 AM PST Friday, March 8, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Friday Afternoon | Snow Level | 1000' | 1000' | 1000' | 1000' | 1500' | 1500' | 1500' | 1500' |
| Friday Evening | Snow Level * | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' | 1000' |
| Friday Night | Snow Level * | 500' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Saturday Morning | Snow Level * | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Saturday Afternoon | Snow Level * | 1500' | 1500' | 1500' | 500' | 1500' | 1500' | 1500' | 1500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1000' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 500' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 0' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning |
Snow Level 0' |
| Friday Afternoon |
Snow Level 1500' |
| Friday Evening |
Snow Level 1000' (Easterly Flow *) |
| Friday Night |
Snow Level 500' (Easterly Flow *) |
| Saturday Morning |
Snow Level 0' (Easterly Flow *) |
| Saturday Afternoon |
Snow Level 1500' (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
| Friday | Friday Night | Saturday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | LT 0.10 | 0 | 0 |
| Mt Baker Ski Area | LT 0.10 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 |
| Leavenworth | 0 | 0 | 0 |
| Stevens Pass | LT 0.10 | 0 | 0 |
| Snoqualmie Pass | 0 | 0 | 0 |
| Mission Ridge | LT 0.10 | 0 | LT 0.10 |
| Crystal Mt | LT 0.25 | LT 0.10 | 0 |
| Paradise | LT 0.25 | LT 0.10 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | 0 |
| Mt Hood Meadows | 0.25 | LT 0.25 | LT 0.10 |
| Timberline | 0.25 | LT 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday | 0 |
| Friday Night | 0 |
| Saturday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | 0 |
| Saturday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Saturday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday | LT 0.25 |
| Friday Night | LT 0.10 |
| Saturday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday | LT 0.10 |
| Friday Night | LT 0.10 |
| Saturday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday | 0.25 |
| Friday Night | LT 0.25 |
| Saturday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday | 0.25 |
| Friday Night | LT 0.25 |
| Saturday | 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: 7:03 AM PST Friday, March 8, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Morning | ENE 5 - 15 | VAR 0 - 10 | W 0 - 10 | WSW 0 - 10 | WSW 5 - 15 |
| Friday Afternoon | E 0 - 10 | W 0 - 10 | W 5 - 15 | W 0 - 10 | WSW 10 - 20 |
| Friday Evening | E 0 - 10 | VAR 0 - 10 | W 0 - 10 | VAR 0 - 10 | W 5 - 15 |
| Friday Night | ESE 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 |
| Saturday Morning | VAR 0 - 10 | VAR 0 - 10 | E 0 - 10 | VAR 0 - 10 | E 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | E 5 - 15 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Morning | ENE 5 - 15 |
| Friday Afternoon | E 0 - 10 |
| Friday Evening | E 0 - 10 |
| Friday Night | ESE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Morning | W 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Morning | WSW 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | W 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | E 5 - 15 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Morning | ENE 5 - 15 |
| Friday Afternoon | E 0 - 10 |
| Friday Evening | E 0 - 10 |
| Friday Night | ESE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | VAR 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | W 0 - 10 |
| Friday Afternoon | W 5 - 15 |
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | WSW 0 - 10 |
| Friday Afternoon | W 0 - 10 |
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | WSW 5 - 15 |
| Friday Afternoon | WSW 10 - 20 |
| Friday Evening | W 5 - 15 |
| Friday Night | W 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | E 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 | |
|---|---|---|---|---|---|
| Friday Morning | W 0 - 10 | NW 5 - 15 | WNW 10 - 20 | W 10 - 20 | WSW 15 - 25 |
| Friday Afternoon | VAR 0 - 10 | NW 0 - 10 | W 10 - 20 | WSW 5 - 15 | WSW 15 - 25 |
| Friday Evening | W 0 - 10 | WNW 5 - 15 | WSW 5 - 15 | VAR 0 - 10 | WSW 10 - 20 |
| Friday Night | VAR 0 - 10 | NW 0 - 10 | WSW 0 - 10 | VAR 0 - 10 | W 10 - 20 |
| Saturday Morning | N 0 - 10 | N 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Saturday Afternoon | NNE 5 - 15 | N 5 - 15 | VAR 0 - 10 | VAR 0 - 10 | ENE 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Morning | W 0 - 10 |
| Friday Afternoon | VAR 0 - 10 |
| Friday Evening | W 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | NNE 5 - 15 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Morning | NW 5 - 15 |
| Friday Afternoon | NW 0 - 10 |
| Friday Evening | WNW 5 - 15 |
| Friday Night | NW 0 - 10 |
| Saturday Morning | N 0 - 10 |
| Saturday Afternoon | N 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Morning | WNW 10 - 20 |
| Friday Afternoon | W 10 - 20 |
| Friday Evening | WSW 5 - 15 |
| Friday Night | WSW 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Morning | W 10 - 20 |
| Friday Afternoon | WSW 5 - 15 |
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Morning | WSW 15 - 25 |
| Friday Afternoon | WSW 15 - 25 |
| Friday Evening | WSW 10 - 20 |
| Friday Night | W 10 - 20 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | ENE 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.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Mar 7, 2019
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