A cold front is moving through the region tonight. There’s not a lot of moisture in the air to create a good chance of showers, but expect a brief shower or two around Grand Marais, and Silver Bay before midnight. Then we have partly cloudy skies throughout the rest of the night. Lows are in the low to mid 30s with a rather breezy northwest wind at 10-20mph.
I’ve increased clouds a little for Friday. Mainly because the high pressure to our south is pretty far south, and there’s a fast spot in the jet stream right over the region providing uplift needed for the clouds. Temperatures are cooler, but still pleasant. Expect low to mid 50s for the most part. With the northwest flow at 15-25mph we have mid to upper 40s around Ironwood and Mercer.
Our potent shortwave and low pressure system looks to stay south. I’ve dropped the chance of rain/snow all together for Duluth. But will keep Hayward and Hinckley under a 30% chance of seeing a slushy mix. I’ve warmed up the temperatures too, as there will be no preicp, so temps will reach 44 with an east wind at 5-15mph.
High pressure builds into the region Sunday. Expect clear skies in the morning with lows dipping down to 28. High temps reach 48. Clouds start streaming back in by the afternoon ahead of our next upper level low. This low brings a 60% chance of some rain snow slush mix overnight into Monday morning with low temperatures in the low 30s. Monday afternoon the upper level aspect of the low turns into more of an upper level trough, but a surface low is born, so that will keep the uplift going throughout the day to warrant a 60% chance of rain and snow.
We could get some accumulations out of this. Right now the best shot of accumulating slushy snow is for the North Shore at around 2-4” (Including Duluth). The rest of the region would be in the Trace to 1”.
High temperatures are in the upper 30s to low 40s Monday afternoon and the precipitation moves out by Monday night.
A high pressure system moves in and creates sinking air that dries us up. Lows are in the low 30s and highs are in the mid 40s.