Mountain Weather Forecast

Time and Day:  0715 Saturday

The Snapshot: Dry and mostly sunny Saturday, sharp cooling with light to moderate snow Sunday.

The Science

Current Observations:  Partly cloudy skies and no new precipitation this morning. Temperatures have cooled to 30 degrees in the base area and 27 on the upper mountain. Winds are light and variable.

The Forecast: A flat upper ridge will bring dry and mild conditions today. Increasing sunbreaks Saturday afternoon should bring a warming trend, with winds remaining light during the daylight hours. Sunday morning a sharp trough sags south from British Columbia, bringing much cooler air. WNW flow increases bringing moderate snow and possible convergence showers for Stevens Pass.

The Long Range: Cool temps remain on Monday, with light continuing snow showers. Those will end Monday afternoon, with Tuesday looking mostly dry and maybe even partly sunny. A warmer system approaches from the SW for Wednesday and Thursday.

24hr values daily 4am to 4am.

Precipitation: Saturday’s   24hr water: 0    Snow: 0 Sunday’s   24hr water: .5     Snow: 4-6” Trend and Timing: Light snow beginning Sunday morning, moderate in possible convergence Sunday afternoon.

Temperature: Low: 27   High: 38 Freezing Level: 5500’ Trend and Timing:    Warming trend Saturday, sharp cooling Sunday morning.

Winds Base: W 0-5 Ridge Top: WSW 5-10 Trend and Timing: Light winds all day Saturday and Saturday night.