SPOT WEATHER FORECAST

3/22/2009 Weather Discussion: I guess winter will win the game this week. A cold front will move through today, only to be followed by another stronger front tomorrow. This will set up conditions to bring another round of heavy snow to the Cascades for the first half of the week. Long-term models show some potential for drying starting in the second half of the week, due to that large high-pressure cell building off the coast of California. This is way too far out to have much confidence in, so we will have to wait and see. In the mean time, enjoy the snow. Forecast from Sunday 4pm to Monday 4am Precipitation .25 in. Water 2-4 in. Snow Temperatures Low 22 High 32 Winds 5-15 W gusty Forecast for Monday 4am to 4pm Precipitation .25 in. Water 2-4 in. Snow Temperatures Low 22 High 30 Winds 5-10 W TRENDS AND TIMING Precipitation: Light snow showers will develop this evening and slowly taper off overnight. Snow will re-develop again tomorrow afternoon. Then things really get interesting as our friend the Puget Sound Convergence Zone kicks in. The storm totals for the next 72 hours are currently showing 2-4” of water. Freezing levels: Freezing levels will trend down tonight reaching 1500’ by 4am. Freezing levels will then rebound to 3000’ in the wake of the warm front tomorrow. Freezing levels should hover in the 3-4k range through Wednesday. Winds: Winds will also begin to make a presence as these fronts move through. A steady breeze will blow tonight and then tapering off early tomorrow morning. Winds will then ramp up with the passing of the warm front late Sunday or early Monday morning.