Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather
Weather Synopsis for Friday night through Sunday
A split flow pattern is keeping our region under generally quiet weather, but weak upper-level low pressure over Oregon is helping to create diurnal instability. Shower and isolated thunderstorm activity from highway 2 southward and over the Olympics will continue into the early evening hours before fizzling out and leading to clearing skies. Without strong steering flow aloft, shower activity is forming over the terrain and drifting gradually eastward. Up to a quarter inch may fall in heavier showers in parts of the SW Washington Cascades, particularly near Mt. Rainier.
Saturday looks similar to Friday, but with a very weak trough moving across the region late in the day, sparking a few scattered showers particularly over the Washington Cascades, mainly during the evening hours, but clouds will build during the afternoon. Skies should clear once again late Saturday night.
Sunday afternoon and evening, models have some scattered convective shower activity in the afternoon.
Throughout the forecast period, precipitation should take the form of mostly rain, with high elevation snow above 5500-6000 ft, with locally lower snow levels and reduced visibility in intense convective showers.
Weather Forecast
Hurricane Ridge
| Friday Night | Early evening scattered rain or high elevation snow showers will quickly diminish, with a clearing trend. Convective showers may be mixed with graupel. Mild. Light winds. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and light rain and high elevation weak convective showers late in the day. Mild. Light winds. |
Mt. Baker
| Friday Night | Scattered clouds will decrease and skies should become mostly clear. Mild. Light winds. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and a slight chance of light rain and high elevation snow showers under weak convection late in the day. Mild. Light winds. |
Washington Pass and Leavenworth
| Friday Night | Mostly cloudy early with scattered rain and high elevation snow showers, particularly in the southern areas. Clouds will decrease and skies should become mostly clear. Mild. Light winds. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and a slight chance of light rain and high elevation snow showers under weak convection late in the day. Mild. Light winds. |
Stevens and Snoqualmie Pass
| Friday Night | Mostly cloudy early with scattered convective rain and high elevation snow showers, locally heavy at times with a chance of graupel. Clouds will decrease and skies should become mostly clear. Mild. Light and variable winds at 5000 ft and pass level. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and a chance of light rain and high elevation snow showers under weak convection late in the day. Mild. Light and variable winds at 5000 ft and pass level. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Mostly cloudy early with scattered convective rain and high elevation snow showers, locally heavy at times with a chance of graupel. Clouds will decrease and skies should become mostly clear. Mild. Light winds. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and a chance of light rain and high elevation snow showers under weak convection late in the day. Mild. Light winds. |
Mt. Hood
| Friday Night | Mostly cloudy early with scattered convective rain and high elevation snow showers, locally heavy at times with a chance of graupel. Clouds will decrease late evening and skies will become mostly clear. Mild. Light and variable winds. |
| Saturday | Mostly clear in the morning with mostly cloudy skies and a slight chance of light rain and high elevation snow showers under weak convection late in the day. Mild. Light winds. |
Issued: 2:51 PM PDT Friday, March 29, 2019
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Friday Evening | Snow Level | 5500' | 6000' | 6000' | 5500' | 5500' | 5500' | 5000' | 5000' |
| Friday Night | Freezing Level | 6500' | 6000' | 5500' | 5500' | 5500' | 6000' | 5000' | 5500' |
| Saturday Morning | Freezing Level | 6000' | 5500' | 5500' | 5500' | 5500' | 5500' | 5000' | 5500' |
| Saturday Afternoon | Snow Level | 5500' | 5500' | 6000' | 5500' | 5500' | 5500' | 5500' | 5500' |
| Saturday Evening | Snow Level | 5500' | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' | 6000' |
| Saturday Night | Freezing Level * | 6500' | 6500' | 6000' | 6500' | 6000' | 6500' | 6000' | 7000' |
| Sunday Morning | Freezing Level * | 6500' | 6000' | 5500' | 6000' | 6000' | 6500' | 6000' | 7000' |
| Sunday Afternoon | Snow Level | 5500' | 5500' | 6000' | 5500' | 6000' | 6000' | 6000' | 6500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Freezing Level 6500' |
| Saturday Morning |
Freezing Level 6000' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 5500' |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 5500' |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Snow Level 6000' |
| Friday Night |
Freezing Level 6000' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 5500' |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 6000' |
| Friday Night |
Freezing Level 5500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 6000' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Freezing Level 5500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 5500' |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Freezing Level 5500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Snow Level 5500' |
| Friday Night |
Freezing Level 6000' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Freezing Level 5000' |
| Saturday Morning |
Freezing Level 5000' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6000' |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Snow Level 5000' |
| Friday Night |
Freezing Level 5500' |
| Saturday Morning |
Freezing Level 5500' |
| Saturday Afternoon |
Snow Level 5500' |
| Saturday Evening |
Snow Level 6000' |
| Saturday Night |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Afternoon |
Snow Level 6500' |
* 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 Night | Sunday | Sunday Night | Sunday | |
|---|---|---|---|---|
| 4 pm - 4 am | 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0 | LT 0.10 | 0 | LT 0.10 |
| Mt Baker Ski Area | 0 | 0 | 0 | 0 |
| Washington Pass | 0 | 0 | 0 | LT 0.10 |
| Leavenworth | 0 | 0 | 0 | LT 0.10 |
| Stevens Pass | LT 0.10 | 0 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Mission Ridge | 0 | LT 0.10 | 0 | 0 |
| Crystal Mt | LT 0.10 | LT 0.10 | 0 | LT 0.10 |
| Paradise | LT 0.10 | LT 0.10 | 0 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | LT 0.10 | 0 |
| Mt Hood Meadows | LT 0.10 | 0 | 0 | 0 |
| Timberline | LT 0.10 | 0 | 0 | 0 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Sunday Night | 0 |
| Sunday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Sunday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday Night | LT 0.10 |
| Sunday | 0 |
| Sunday Night | 0 |
| Sunday | 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: 2:51 PM PDT Friday, March 29, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | VAR 0 - 10 | VAR 0 - 10 | W 0 - 10 | WNW 0 - 10 | W 5 - 15 |
| Friday Night | VAR 0 - 10 | VAR 0 - 10 | NNW 0 - 10 | VAR 0 - 10 | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | E 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 | WSW 0 - 10 | W 0 - 10 | VAR 0 - 10 | E 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | WSW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | NNW 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | WNW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | E 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | WSW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | W 0 - 10 |
| Friday Night | NNW 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | W 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WNW 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | W 5 - 15 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | E 0 - 10 |
| Saturday Afternoon | E 0 - 10 |
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 Evening | ENE 0 - 10 | NNE 5 - 15 | ENE 5 - 15 | ENE 5 - 15 | VAR 0 - 10 |
| Friday Night | S 0 - 10 | VAR 0 - 10 | ESE 5 - 15 | ESE 0 - 10 | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 | NNW 0 - 10 | NE 0 - 10 | ENE 0 - 10 | VAR 0 - 10 |
| Saturday Afternoon | S 0 - 10 | VAR 0 - 10 | ESE 0 - 10 | SE 0 - 10 | SSE 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | ENE 0 - 10 |
| Friday Night | S 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | S 0 - 10 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | NNE 5 - 15 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | NNW 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | ENE 5 - 15 |
| Friday Night | ESE 5 - 15 |
| Saturday Morning | NE 0 - 10 |
| Saturday Afternoon | ESE 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | ENE 5 - 15 |
| Friday Night | ESE 0 - 10 |
| Saturday Morning | ENE 0 - 10 |
| Saturday Afternoon | SE 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | VAR 0 - 10 |
| Friday Night | VAR 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SSE 0 - 10 |
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: 2:51 PM PDT Friday, March 29, 2019
Extended Weather Synopsis for Sunday night through Sunday
Evening convective showers will decrease with clearing skies once again as moisture and high clouds increasing ahead of a slightly more organized system approaching from the SW. The more pronounced offshore low may bring rain to the Mt. Hood region and possibly the southern Washington Cascades on Monday. The associated trough will move onshore Monday night with a low moving onshore Tuesday. Models disagree about the track of the low, so the region may get a decent dose of precipitation and westerly flow or most of the rain may remain to our south.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Snow Level | 5000' - 6000' | 5000' - 6000' | 6000' - 7000' | |
| Monday | Snow Level | 5000' - 6000' | 5000' - 6000' | 6000' - 7000' | * |
| Monday Night | Snow Level | 6000' - 7000' | 5500' - 6500' | 6000' - 7000' | * |
| Tuesday | Snow Level | 5000' - 6000' | 5000' - 6000' | 5500' - 6500' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Snow Level 5000' - 6000' |
| Monday |
Snow Level 5000' - 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' - 7000' (Easterly Flow *) |
| Tuesday |
Snow Level 5000' - 6000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Snow Level 5000' - 6000' |
| Monday |
Snow Level 5000' - 6000' (Easterly Flow *) |
| Monday Night |
Snow Level 5500' - 6500' (Easterly Flow *) |
| Tuesday |
Snow Level 5000' - 6000' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Snow Level 6000' - 7000' |
| Monday |
Snow Level 6000' - 7000' (Easterly Flow *) |
| Monday Night |
Snow Level 6000' - 7000' (Easterly Flow *) |
| Tuesday |
Snow Level 5500' - 6500' |
* 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 29, 2019
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