SPOT WEATHER FORECAST

1/4/2009 Weather Discussion: The leading edge of the next weather event to hit the PNW is currently a few miles off the coast. The warm front is expected to reach the mountains this evening bringing rising freezing levels, very heavy snow and yes, more wind. Long-term models show a very wet warm week ahead as a strong SW flow drives in heavy moisture through the middle of the week. Forecast from Sunday 4pm to Monday 4am Precipitation .75 in. Water 8-10” in. Snow Temperatures Low 16 High 30 Winds 5-10 SW Forecast for Monday 4am to 4pm Precipitation .75-1 in. Water 10-15” in. Snow Temperatures Low 30 High 32 Winds 10-20 W Gust 40 TRENDS AND TIMING Precipitation: The moisture should show up around 4pm and intensify through tonight. There should be enough cold air left over to hopefully prevent any rain, but we can expect heavy snow through tomorrow. Storm totals could be as high as +3” of water by Monday evening with more on the way. Freezing levels: Freezing levels will trend up to 4000-4500’ by midnight tonight and remain there until it begins to rise higher on Tuesday. Winds: Light E/SE flow should develop today but quickly swing south, southwest and then westerly through the night. Strong westerly with convergence flow should be established by first light. It will be possible to see gust 40+ through tomorrow morning.