WEATHER UPDATE via Michigan Storm Chasers >> Lake effect totals through Friday afternoon, December 19th, 2025 have been updated slightly to account for latest shifts in atmospheric conditions.
Discussion
As temperatures fall early Friday, moisture pools back in, mixed with colder air over the warmer lakes, turning on the lake effect machine for both of the Great Lakes that influence our normal lake effect zones. A respectable 1-3" to 2-5" is possible in the fairly typical areas shown on the map. The narrow lane of higher elevation across the Keweenaw Peninsula and Porcupine Mountains are most-likely to experience totals exceeding 6". You may have noticed our one main change was the expansion of T-1" over to the east side of the state just as a general precaution to any snow squalls that make it across the state. Not everyone will get a rogue snow squall, but it is in the odds for nearly everyone. A snow squall is a thin, but intense band of quick snow that can produce at least half an inch of snow in minutes time, while knocking visibility down from 10 miles, to a quarter mile in moments time. Additionally, a quick coating of snow may hide any ice that was able to form from the freeze later tonight. Lake effect snow and snow squalls are poised to start later this evening around 8 pm EST (earlier for the western UP), and run primarily through 1 pm EST Friday. A couple lake effect bands may last through 6 pm across northern Michigan near Gaylord, and the central UP near Munising.
Each area is never guaranteed the totals shown on the screen. This is why we call it a prediction. The totals that are shown however do have the greatest odds of occurring. Yes, we are still trying to find that crystal ball, but no luck to this point. Follow us here at Michigan Storm Chasers for forecast updates, and a little humor on the side, throughout the next few days, and as always, 365 days a year! #miweather #keweenaw #westernup #marquette #munising #seney #newberry #soo #straitsarea #gaylord #cadillac #benzie #traversecity #petoskeyLake effect totals through Friday afternoon, December 19th, 2025 have been updated slightly to account for latest shifts in atmospheric conditions.
Discussion
As temperatures fall early Friday, moisture pools back in, mixed with colder air over the warmer lakes, turning on the lake effect machine for both of the Great Lakes that influence our normal lake effect zones. A respectable 1-3" to 2-5" is possible in the fairly typical areas shown on the map. The narrow lane of higher elevation across the Keweenaw Peninsula and Porcupine Mountains are most-likely to experience totals exceeding 6". You may have noticed our one main change was the expansion of T-1" over to the east side of the state just as a general precaution to any snow squalls that make it across the state. Not everyone will get a rogue snow squall, but it is in the odds for nearly everyone. A snow squall is a thin, but intense band of quick snow that can produce at least half an inch of snow in minutes time, while knocking visibility down from 10 miles, to a quarter mile in moments time. Additionally, a quick coating of snow may hide any ice that was able to form from the freeze later tonight. Lake effect snow and snow squalls are poised to start later this evening around 8 pm EST (earlier for the western UP), and run primarily through 1 pm EST Friday. A couple lake effect bands may last through 6 pm across northern Michigan near Gaylord, and the central UP near Munising.
Each area is never guaranteed the totals shown on the screen. This is why we call it a prediction. The totals that are shown however do have the greatest odds of occurring. Yes, we are still trying to find that crystal ball, but no luck to this point. Follow us here at Michigan Storm Chasers for forecast updates, and a little humor on the side, throughout the next few days, and as always, 365 days a year!
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