SPOT WEATHER FORECAST

3/21/2009 Weather Discussion: This beautiful sunny weather should continue today, courtesy of an upper level trough that has stalled off the coast. The low is expected to gain traction tomorrow, bringing thickening clouds and light snow to the Cascades. Long-term models show a strong front pushing in on Monday- this could bring another round of accumulating snow for Monday/Tuesday. Longer-range models show high pressure strengthening off the California coast during the week-interesting. I am not sure what long range affect this will have on our weather, but for now, it will produce NW flow, keeping active weather moving through the PNW for most of next week. Forecast from Saturday 4pm to Sunday 4am Precipitation 0 in. Water 0 in. Snow Temperatures Low 20 High 38 Winds 0-5 SW Forecast for Sunday 4am to 4pm Precipitation .10 in. Water 1-2 in. Snow Temperatures Low 20 High 32 Winds 0-5 WSW TRENDS AND TIMING Precipitation: Dry conditions will persist through the night. There is still some instability lurking over the crest so an afternoon shower or two could be possible. Light snow should show up after noon tomorrow. Freezing levels: The sun will push up surface temps into the low 40’s today and then cool off quickly as the sun sets. Freezing levels will linger near pass levels and then slowly trend down to reach 3000’ by tomorrow evening. Freezing levels should stay below pass level through mid week. Winds: Light SW flow will slowly swing westerly tomorrow.