December 13, 2012

Mountain Weather Forecast -Time: 0900

Discussion: It was lovely to see the mountains all lit up by the morning sun. Radar shows a frontal band of moisture just off shore this morning. This system is expected to weaken and possible split as it moves inland and thus will not likely be a significant snow producer for the mountains.

Long-term: Two stronger storms are lining up to hit the PNW over the weekend, one Saturday night and then again on Sunday. The long range models show the jet stream shifting south next week. We will have to wait and see what this does to the general storm track, but it could lead systems south and away from the PNW. In the mean time, enjoy the snow this weekend and early next week.

24hr Accumulative Precipitation Totals Starting at Noon Today:
Water by 4am = <.25 Snow equivalent =1-3

Total inches of water by noon tomorrow = +.25
Total inches of snow by noon tomorrow =3-5

Trend and Timing:
Snow will arrive after 4pm tonight. Light snow will continue to fall tomorrow.

24hr Base Area Temperatures (F) Starting at Noon Today:
Low: 20 High: 24
Freezing level: +- 2500

Trend and Timing:
Freezing levels will vary between 1500’ and 2500’ through Saturday.

24hr Winds Speed (mph)/Direction Starting at Noon Today:
Base: 0-5 E
Ridge Top: 0-10 WSW

Trend and Timing:
Winds will be light and sporadic.



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