Winter Storm Briefing Eric Ahasic Monday, November 25, 2019 1:00 PM - PowerPoint PPT Presentation

November 26-27 Winter Storm Briefing Eric Ahasic Monday, November 25, 2019 1:00 PM

Current Headlines (Updated 2 PM Monday) Winter Storm Warning now in effect for much of central and southern Minnesota, and all of west-central Wisconsin. Winter Storm Watch remains in effect for portions of west-central and central MN where confidence in snowfall amounts is lower.

Overview WHAT: Heavy snow accumulation (6+ inches) and blowing snow WHERE: Southeast of a line from Madison to Little Falls, MN. This includes all of west central Wisconsin, the Twin Cities Metro area, and Mankato. WHEN: Snow is expected to develop in southwest/south central Minnesota Tuesday evening and spread northeast during into the night. The snow will gradually end over east central Minnesota/west central Wisconsin late Wednesday morning. IMPACTS: Thanksgiving Holiday travel is expected to be significantly impacted Tuesday evening through Wednesday morning.

Snowfall Forecast 6+ inches of snow is most likely in the dark orange regions. Lower confidence in the yellow/dark blue. 2- 4” Amounts of 6- 8” look most likely in areas under a winter storm warning, with an upper range of 10- 12” 6”+ Confidence is highest in the expected location of the heaviest snow (Warned areas), but is moderate in the expected amounts 6”+

Upper/Lower Ranges

Forecast Radar

Forecast Radar

Forecast Radar

Peak Wind Gusts Wind gusts of 35-40 mph are possible Tuesday night through Wednesday morning. Areas of blowing snow with near-blizzard conditions are possible, especially across open areas of western and southern Minnesota.

Summary  Heavy snow accumulation (6+ inches) and blowing snow are possible Tuesday night into Wednesday morning.  Confidence is highest in seeing 6+ inches of snow from south-central Minnesota through west-central Wisconsin, with confidence decreasing northwest into central Minnesota  Amounts of 6-8 inches look most likely in the warned area, with upper end possibly reaching 10- 12”  Thanksgiving Holiday travel is expected to be significantly impacted Tuesday evening through Wednesday morning.