Tonight is another cold one with temperatures dropping below zero for a some inland areas tonight. Wednesday is the calm before the storm with sunny skies. Snow will develop in the predawn hours Thursday, starting off light at first and slowly picking up in intensity. As warmer air punches into the mid and upper levels of the atmosphere, snow will mix in and change over to sleet and then rain. That transition will happen from southeast to northwest with the lowest to highest snowfall accumulations respectively. Winds will gust up to 35 mph inland, 45 mph for the shoreline. Some poor drainage flooding is possible too with snow/ice covered gutters and storm drains. Rain/sleet will change back to snow as the storm moves out early Friday morning.
Right now we’re forecasting 6”-10” of snow for the I-84 corridor north and west with up to 12” in the northwest hills. 3”-6” of snow is forecast south of that area with more mixing with rain. What a mess! The rain/snow line is key to accumulations here. A little change in track can mean a big difference. So we need to watch the forecast very carefully over the next 24 hours. We’ll keep you posted with any changes as the latest data comes in
Tonight: Cold, clear. Low: -5 to 10.
Tomorrow: Mostly sunny, less wind than recent days. Remaining cooler than average. High temperatures in the middle 20s.
Thursday: Snow developing early, mixing/changing over to ice and rain from southeast to northwest. High temperatures in the low 30s.
Friday: Any leftover snow ending early. A mix of sun and clouds. A bit milder. High temperatures in the upper 30s.
Saturday: Chance for a morning snow shower, partly cloudy, cooler. High temperatures in the lower 30s.
Sunday: Wall to wall sunshine, seasonably cool. High temperatures in the upper 20s.