Two distinct warm fronts will generate fluctuating freezing levels and heavy precipitation in the mountains for the next few days. Snow, rain, freezing rain? That is the crucial question. Winds will also be a significant factor. See trends and timing below.
Long-term: The following warm front arrives Tuesday morning with a similar effect – more precipitation with rising freezing levels. Cool NW flow will keep snow in the picture for the second half of the week. The weekend appears to be dry and cold as high pressure builds off the western coast.
24hr Accumulative Precipitation Totals Starting at Noon Today:
Water by 4am =.5-.75 Snow equivalent = 6-10
Total inches of water by noon tomorrow = 1-1.5
Total inches of snow by noon tomorrow = 10-15 above 4500’
Trend and Timing:
Snow will steadily increase today as the front approaches. Heavy snow tonight with a possible rain event below 4500’ should be anticipated. The precipitation will taper off tomorrow with another similar event on Tuesday.
24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 24 High: 34
Freezing level: 2500’ 4500’
Trend and Timing:
Surface temperatures should reach 32f sometime around midnight and then inch up a few degrees as the morning progresses. Freezing levels will then fall back below Pass level by tomorrow afternoon.
24hr Winds Speed (mph)/Direction Starting at Noon Today:
Base: 5-10 W shifting E then back W
Ridge Top: 10-20+ W gust above 50mph possible.
Trend and Timing:
High winds will also be a factor with this front. We can expect gust of +50mph to hit the upper mountain during operations tomorrow.
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