THE WEATHER

2/29/2008 Weather Discussion: The current high clouds are the first indication that a cold front is approaching. This will bring snow to the mountains tonight and tomorrow. Long-term models show high pressure producing a dry day Sunday with another system moving in on Monday. Another dry period is shaping up for the middle of the week. Forecast from Friday 4pm to Saturday 4am Precipitation .5 in. Water 4-8 in. Snow Temperatures Low 26 High 34 Winds 5-15 SW Forecast for Saturday 4am to 4pm Precipitation .25 in. Water 3-5 in. Snow Temperatures Low 26 High 30 Winds 10-20 W gust TRENDS AND TIMING Precipitation: There is some conflict on the timing of the arrival of the precipitation - so any time between 2pm and 10pm tonight. If the moisture arrives early we could see some initial rain at the base but precip. should turn to snow through the night. A Puget Sound Convergence could enhance orographic snow fall at times. Snow expected to slowly turn to snow showers and eventually end by 4am Sunday. Freezing levels: Temps will begin to fall after 2pm today. Freezing levels should drop below pass level by 10pm tonight. Freezing levels could bottom out around 2000’ by midday tomorrow and then begin to rise again. Winds: Winds will swing SW and then West as the front moves through. A convergence pattern will keep the winds gusty and persistent through most of tomorrow. Models aren’t showing wicked winds but could see gust to 40mph at times. jdm