6:30 PM Tuesday, April 22, 2025
-A few showers are possible in our area through Wednesday morning, but a bigger weather story may be the development of dense fog late tonight through mid-morning on Wednesday. Fog chances are highest near Lake Superior in northeastern Minnesota and far northwest Wisconsin, where visibility could drop to one quarter mile. This fog is expected to dissipate by mid to late morning on Wednesday.
-Rain chances return to parts of the Northland late Thursday to Friday morning.
-Chances for showers and thunderstorms Sunday to Monday, and some of the storms, especially next Monday, could be on the strong side.
NAM 3km model simulated radar forecast through 7 PM Wednesday.
Our next chance for rain comes Thursday afternoon to Friday morning as another disturbance tracks east-northeast out of the central Plains. Rain chances are highest in northwest Wisconsin and eastern Minnesota, with a lower chance for rain across northern Minnesota the way things look now.
Euro model simulated radar forecast valid 1 PM Thursday to 1 PM Friday.
Here’s a look at the NWS Blend of Models rainfall forecast through Friday morning.
Late this weekend and early next week, a robust upper-level trough and low-pressure system are projected to move northeast from the Rockies. Increasing levels of warm air, moisture, and instability are anticipated to advance into the upper Midwest ahead of this system early next week.
Showers and thunderstorms are possible in the Northland during the Sunday-Monday time frame as this system crosses the area.
A broad area is at risk for severe thunderstorms (indicated by the yellow area on the map) next Monday. This risk area may shift farther north, east, or south in the coming days, as the event is still several days away.
Temperatures next Monday are expected to reach the 60s across much of northeast Minnesota and northwest Wisconsin. However, an east wind ahead this system is likely to keep temperatures in the 40s and 50s near Superior, with the coolest conditions within approximately 15 miles of the lake.
Temperatures in the 70s are predicted for next Monday across central and southern Minnesota.
Model guidance indicates a surge of low-level moisture into the upper Midwest next Monday, with dew points rising into the 50s and 60s.
CAPE, or the measure of atmospheric instability, is projected to increase to approximately 1000 J/kg in northeast Minnesota and northwest Wisconsin next Monday, with potentially higher levels of CAPE expected further to the southwest.
Thanks for reading!
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