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 Tuesday
A broad upper-level ridge sits over West Coast on Friday afternoon and is expected to remain relatively stationary through the day on Saturday. The ridge is bringing above-normal and warming temperatures to our mountains as subsiding air warms and replaces cooler air previously in place. Diurnal temperature swings will be pronounced, particularly east of the Cascade Crest where each night of warming temperatures further weakens the cold pool as it mixes with the warm air aloft during the day time. Light low-level easterly flow is bringing some of this cooler air through the mountain gaps. High clouds will continue to move across the region ahead of a fizzling frontal boundary, which has a minor chance of bringing some very light drizzle to the Olympic Mountains Saturday evening. Saturday is expected to be slightly warmer than Friday, but slightly thicker high clouds may reduce the solar input slightly.
Saturday night the ridge pinches off a closed high pressure which drifts NE over the Pacific Northwest region. Sunday is expected to feature strong warming and the warmest temperatures seen in our mountains since October. It will be significantly warmer west of the Cascade Crest with light to moderate E flow.
Weather Forecast
Hurricane Ridge
| Friday Night | Thin, high clouds. Mild. Light winds. |
| Saturday | Thin, high clouds, possibly lowering to mid-level late in the day. Warm. Light winds. |
Mt. Baker
| Friday Night | Thin, high clouds. Mild. Light winds. |
| Saturday | Thin, high clouds. Warm. Light winds. |
Washington Pass and Leavenworth
| Friday Night | Thin, high clouds. Cold air pool weakening but still in place. Light winds. |
| Saturday | Thin, high clouds. Warming rapidly as cold pool mixes out. Light winds. |
Stevens and Snoqualmie Pass
| Friday Night | Thin, high clouds. Light E winds, gusting moderate through the passes bringing cool air through the gaps. Light 5000 ft winds. |
| Saturday | Thin, high clouds. Warm. Light E winds through the passes and light winds at 5000 ft. |
Mt. Rainier, Crystal and White Pass
| Friday Night | Thin, high clouds. Mild. Light winds. |
| Saturday | Thin, high clouds. Warm. Light winds. |
Mt. Hood
| Friday Night | Thin, high clouds. Mild. Light winds. |
| Saturday | Thin, high clouds. Warm. Light winds. |
Issued: 2:39 PM PDT Friday, March 15, 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 | Freezing Level * | 5500' | 5500' | 5500' | 5500' | 6000' | 6500' | 6500' | 7500' |
| Friday Night | Freezing Level * | 6000' | 4500' | 4500' | 4500' | 4500' | 5000' | 5500' | 6000' |
| Saturday Morning | Freezing Level * | 6500' | 4500' | 4500' | 4500' | 4500' | 5000' | 5000' | 6000' |
| Saturday Afternoon | Freezing Level * | 7000' | 6500' | 6000' | 6000' | 6500' | 7000' | 7000' | 8000' |
| Saturday Evening | Freezing Level * | 6500' | 6500' | 6000' | 7000' | 7000' | 7000' | 7000' | 8000' |
| Saturday Night | Freezing Level * | 7000' | 6000' | 5500' | 6500' | 6000' | 6500' | 6500' | 7500' |
| Sunday Morning | Freezing Level * | 7500' | 5500' | 5500' | 6000' | 5500' | 6000' | 6000' | 7500' |
| Sunday Afternoon | Freezing Level * | 8500' | 7500' | 7000' | 7000' | 7500' | 8000' | 8000' | 8500' |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Friday Night |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Freezing Level 7000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8500' (Easterly Flow *) |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Friday Night |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Washington Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Friday Night |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Leavenworth | Elevation |
|---|---|
| Friday Evening |
Freezing Level 5500' (Easterly Flow *) |
| Friday Night |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Stevens Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 6000' (Easterly Flow *) |
| Friday Night |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 4500' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 6500' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 5500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 7500' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Friday Night |
Freezing Level 5000' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Friday Evening |
Freezing Level 6500' (Easterly Flow *) |
| Friday Night |
Freezing Level 5500' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 5000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 7000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 6500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening |
Freezing Level 7500' (Easterly Flow *) |
| Friday Night |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Morning |
Freezing Level 6000' (Easterly Flow *) |
| Saturday Afternoon |
Freezing Level 8000' (Easterly Flow *) |
| Saturday Evening |
Freezing Level 8000' (Easterly Flow *) |
| Saturday Night |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Morning |
Freezing Level 7500' (Easterly Flow *) |
| Sunday Afternoon |
Freezing Level 8500' (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 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 |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| White Pass | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Friday Night | 0 |
| Tuesday | 0 |
| Tuesday Night | 0 |
| Tuesday | 0 |
| Timberline | Precipitation Forecast |
|---|---|
| Friday 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: 2:39 PM PDT Friday, March 15, 2019
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Friday Evening | S 0 - 10 | S 0 - 10 | SE 0 - 10 | SE 0 - 10 | ESE 0 - 10 |
| Friday Night | SSW 0 - 10 | SSE 0 - 10 | ESE 0 - 10 | SE 0 - 10 | SSE 5 - 15 |
| Saturday Morning | S 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | VAR 0 - 10 | SSE 0 - 10 |
| Saturday Afternoon | SW 5 - 15 | SW 0 - 10 | VAR 0 - 10 | SW 0 - 10 | VAR 0 - 10 |
| Hurricane Ridge | Elevation |
|---|---|
| Friday Evening | S 0 - 10 |
| Friday Night | SSW 0 - 10 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Mt. Baker | Elevation |
|---|---|
| Friday Evening | S 0 - 10 |
| Friday Night | SSE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Friday Evening | SE 0 - 10 |
| Friday Night | ESE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Elevation |
|---|---|
| Friday Evening | SE 0 - 10 |
| Friday Night | SE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Hood | Elevation |
|---|---|
| Friday Evening | ESE 0 - 10 |
| Friday Night | SSE 5 - 15 |
| Saturday Morning | SSE 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Friday Evening | S 0 - 10 |
| Friday Night | SSW 0 - 10 |
| Saturday Morning | S 0 - 10 |
| Saturday Afternoon | SW 5 - 15 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | S 0 - 10 |
| Friday Night | SSE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | SE 0 - 10 |
| Friday Night | ESE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | VAR 0 - 10 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | SE 0 - 10 |
| Friday Night | SE 0 - 10 |
| Saturday Morning | VAR 0 - 10 |
| Saturday Afternoon | SW 0 - 10 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | ESE 0 - 10 |
| Friday Night | SSE 5 - 15 |
| Saturday Morning | SSE 0 - 10 |
| Saturday Afternoon | VAR 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 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 | SW 10 - 20 |
| Friday Night | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 | WSW 15 - 25 | SW 15 - 25 |
| Saturday Morning | WSW 10 - 20 | WSW 10 - 20 | WSW 15 - 25 | WSW 10 - 20 | SW 10 - 20 |
| Saturday Afternoon | WSW 15 - 25 | WSW 10 - 20 | WSW 10 - 20 | WSW 10 - 20 | SW 10 - 20 |
| Mt. Baker | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | WSW 10 - 20 |
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | WSW 15 - 25 |
| Washington Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | WSW 10 - 20 |
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | WSW 15 - 25 |
| Saturday Morning | WSW 15 - 25 |
| Saturday Afternoon | WSW 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Friday Evening | WSW 10 - 20 |
| Friday Night | WSW 15 - 25 |
| Saturday Morning | WSW 10 - 20 |
| Saturday Afternoon | WSW 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Friday Evening | SW 10 - 20 |
| Friday Night | SW 15 - 25 |
| Saturday Morning | SW 10 - 20 |
| Saturday Afternoon | SW 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.
Issued: 2:39 PM PDT Friday, March 15, 2019
Extended Weather Synopsis for Tuesday night through Tuesday
Sunday night and through Tuesday a very warm high pressure drifts NE across our region into British Columbia. It will feature 8,000-10,000 ft freezing levels, clear skies, light upper-level winds, but E flow will increase through the mountain gaps into the moderate range during this time period. Temperatures are expected to be 10-15 F cooler east of the Cascade Crest than west of the crest. Temperatures will be just below or approaching record highs for the date in some locations.
Extended Snow/Freezing Levels
| Mt. Baker | Snoqualmie Pass | Mt. Hood | Easterly Flow * | ||
|---|---|---|---|---|---|
| Sunday Night | Freezing Level | 8000' - 9000' | 8000' - 9000' | 8500' - 9500' | * |
| Monday | Freezing Level | 8000' - 10000' | 8500' - 9500' | 7500' - 8500' | * |
| Monday Night | Freezing Level | 8500' - 10500' | 8500' - 9500' | 8500' - 9500' | * |
| Tuesday | Freezing Level | 8000' - 10000' | 7000' - 9000' | 8000' - 9000' | * |
| Mt. Baker | Elevation |
|---|---|
| Sunday Night |
Freezing Level 8000' - 9000' (Easterly Flow *) |
| Monday |
Freezing Level 8000' - 10000' (Easterly Flow *) |
| Monday Night |
Freezing Level 8500' - 10500' (Easterly Flow *) |
| Tuesday |
Freezing Level 8000' - 10000' (Easterly Flow *) |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Night |
Freezing Level 8000' - 9000' (Easterly Flow *) |
| Monday |
Freezing Level 8500' - 9500' (Easterly Flow *) |
| Monday Night |
Freezing Level 8500' - 9500' (Easterly Flow *) |
| Tuesday |
Freezing Level 7000' - 9000' (Easterly Flow *) |
| Mt. Hood | Elevation |
|---|---|
| Sunday Night |
Freezing Level 8500' - 9500' (Easterly Flow *) |
| Monday |
Freezing Level 7500' - 8500' (Easterly Flow *) |
| Monday Night |
Freezing Level 8500' - 9500' (Easterly Flow *) |
| Tuesday |
Freezing Level 8000' - 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.
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 15, 2019
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