Halloween Storm – Up to 9″ of snow in Lower Michigan

Bill's Blog

The Halloween storm produced wind gusts of 50-60 mph at the Lake Michigan shore – waves up to 14 feet on Lake Michigan and up to 9″ of snow in Lower Michigan

A relatively small difference in elevation made a significant difference

The 9″ snow total was 6 miles northeast of Roscommon. Houghton Lake had 4.4″ and 4.5″ fell at Boyne City and Lewiston. Peak waves were 13 feet at the mid-Lake Michigan buoy and 14 ft. at the Michigan City IN buoy. 8.1″ fell at USH Madison, Wisconsin, with 6.1″ at Milwaukee. In NW Illinois, 4.6″ fell at O’Hare Airport, with 7″ at Woodstock (where much of the movie “Groundhog Day” was filmed) and 7.1″ at Bull Valley. 5.5″ fell at Mundelein (named for a Catholic cardinal of Chicago, who started a seminary there).

Only 0.3″ of snow fell in G.R. with 1-2″ in parts of Oceana, Mason, Lake and Osceola Counties.


Midwest Hazards Map

The purple on the map above shows where Winter Weather Advisories were in effect (all the way south to Oklahoma) and the light blue was freeze warnings.

At the Appalachian St. football game in Boone NC, the temp. Thu. evening fell 26 deg. from 7 pm to 11 pm during the game.

Here’s Grand Rapids radar:

Click for latest Composite Reflectivity radar image from the Grand Rapids/Muskegon, MI radar and current weather warnings

And regional radar:

Central Great Lakes sector loop

There was a large Enhanced Risk Area (orange on the map) for severe t-storms, and there were over 200 reports of wind damage from Georgia to New York – the storms, lightning and heavy rain really disrupted Halloween in those areas:

Severe Weather Outlook from the Storm Prediction Center for Oct 31 2019
Colorado snowfall

Denver, Colorado’s high temperature of 19 on Wed. came within one degree of the coldest high temp. ever in October. The temperature fell to 6° by 10 pm, then rose 9° to 15° as the wind shifted from south to southwest. This is the snowiest October in Denver in a decade. (Graphic from KDVR).

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