April Starts Cold, 2nd week WarmMarch 31st, 2013 at 4:07 pm by Bill Steffen under Bill's Blog, Weather
Picture is the MODIS satellite picture from shortly after 2 PM Sunday PM. Click on the image or click here to enlarge. 1 AM - We had a nice snow shower here in Alpine Twp. The Ford Airport added 0.1″ of snow prior to midnight, so we are up to 65.3″ of snow for the season. The ground is (at least temporarily) half white at my house after probably 1/4″ of snow. It’s about to go below freezing, so watch for an icy spot on a road/driveway/sidewalk in the morning. It’s only in the low 20s in the U.P. with single digit wind chill factors, so we have a chilly 48-hours coming up. Check out the surface map – there’s some pretty chilly air across NW Wisc. and Minn. headed our way. Daytime temperatures will be in the mid-upper 30s, but this is the last of the real cold air. We’re back at least to mid 40s Weds. Temperatures will reach the 50s later this week. The Arctic Oscillation has been very negative (which usually means cold air in the Great Lakes) and it’s forecast to go positive – a sign that it’ll be much warmer during the 2nd week of April. Same thing for the NAO (North Atlantic Oscillation)…it has been negative – it’s going to go positive. Pattern change late this week and 60s and 70s in mid-April and our first good thunderstorms as the warm air comes in. We’ll catch a couple showers/t-showers next weekend.