Summary from Storm System on 12/20-12/21 - Updated for Snow Maps

Lower michigan had quite the unsettled weather from the early morning hours on Thursday, December 20th, through Friday afternoon, December 21st. Conditions ranged from a burst of a few inches of snow up north Thursday morning, to heavy rainfall and some isolated thunderstorms down south on Thursday afternoon, to light snow late Thursday night/Friday morning, then to very windy conditions Friday during the day.

 

Everything started early Thursday morning as precipitation developed over the area prior to daybreak. The precipitation started out as snowfall along and north of Interstate 96 prior to daybreak on Thursday. The precipitation started out as mainly rain south of Interstate 96. The precipitation gradually changed over to all rain from south to north by early afternoon on Thursday. The radar animation below shows this progression of this.

Once all of the precipitation changed over to rainfall Thursday afternoon, the area saw waves of rain move through into Thursday evening. There were heavier downpours at times, and even a couple of possible rumbles of thunder down south toward I-94. Below is a radar animation of this time period.

Eventually Thursday night, colder air wrapped back into the area from the northwest and southwest as the system moved east of the area. Rain eventually changed over to light snow by daybreak Friday morning. Some lake enhancement was occurring for a brief period across western Allegan and Van Buren counties.

Below are storm total snowfall maps for southern Lower Michigan and the entire Upper Midwest and Great Lakes regions (Click images to enlarge).

 

Images were created at the Snowfall Analysis webpage -http://www.srh.noaa.gov/ridge2/snow/
  

Here are some additional snow reports for Friday December 21st:


LOCATION                   OBSERVED     TIME/DATE
                            VALUE     OF OBSERVATION    LAT    LON
MICHIGAN

...ALLEGAN COUNTY...
  2 S HOLLAND                  1.5 E   345 PM 12/21   42.75N  86.11W

...CLINTON COUNTY...
  2 NE BATH                    2.3 M  1100 AM 12/21   42.84N  84.42W

...INGHAM COUNTY...
  OKEMOS                       1.8 M   220 PM 12/21   42.72N  84.43W

...MASON COUNTY...
  FOUNTAIN                     3.0 M  1230 PM 12/21   44.05N  86.18W
  2 SE SCOTTVILLE              5.6 M   700 AM 12/21   43.93N  86.25W

...MECOSTA COUNTY...
  BIG RAPIDS                   4.2 M   700 AM 12/21   43.70N  85.48W

...OCEANA COUNTY...
  8 NW MONTAGUE                2.2 M   700 AM 12/21   43.50N  86.47W
  2 W MEARS                    2.5 E   945 AM 12/21   43.68N  86.45W
  3 WSW HART                   3.2 M   700 AM 12/21   43.68N  86.42W 

 

These are snow reports from Thursday December 20th:

LOCATION                   OBSERVED     TIME/DATE
                            VALUE     OF OBSERVATION    LAT    LON
MICHIGAN

...CLARE COUNTY...
  HARRISON                     5.5 M   900 AM 12/20   44.02N  84.80W

...ISABELLA COUNTY...
  MOUNT PLEASANT               2.0 M   703 AM 12/20   43.60N  84.77W

...LAKE COUNTY...
  BALDWIN                      1.3 M   800 AM 12/20   43.90N  85.85W

...MECOSTA COUNTY...
  BIG RAPIDS                   1.8 M   700 AM 12/20   43.70N  85.48W
  BARRYTON                     3.5 M   627 AM 12/20   43.75N  85.14W

...MONTCALM COUNTY...
  SIX LAKES                    1.0 E   820 AM 12/20   43.43N  85.15W
  EDMORE                       2.0 M   700 AM 12/20   43.41N  85.04W

...OCEANA COUNTY...
  3 WSW HART                   1.3 M   700 AM 12/20   43.68N  86.42W

...OSCEOLA COUNTY...
  DIGHTON                      4.0 M   802 AM 12/20   44.09N  85.35W

Here are wind reports from Friday, December 21st:

LOCATION                   WIND GUST    TIME/DATE  
(MPH) OF OBSERVATION LAT LON  
MICHIGAN  
   
..ALLEGAN COUNTY
 
 2 S HOLLAND 47.00 M 1115 AM 12/21 42.75N 86.11W  
   
..BERRIEN COUNTY
 
 3 WSW BENTON HARBOR 60.00 M 131 AM 12/21 42.10N 86.49W  
   
..CALHOUN COUNTY
 
 3 WSW BATTLE CREEK 41.00 M 353 PM 12/21 42.31N 85.25W  
   
..CLINTON COUNTY
 
 5 NNW LANSING 38.00 M 1013 AM 12/21 42.80N 84.58W  
   
..EATON COUNTY
 
 2 ENE CHARLOTTE 37.00 M 615 AM 12/21 42.57N 84.81W  
   
..GRATIOT COUNTY
 
 4 SSW ALMA 37.00 M 1151 AM 12/21 43.32N 84.69W  
   
..INGHAM COUNTY
 
 1 ESE MASON 37.00 M 354 PM 12/21 42.57N 84.42W  
   
..IONIA COUNTY
 
 3 S IONIA 40.00 M 934 AM 12/21 42.94N 85.06W  
   
..ISABELLA COUNTY
 
 2 NE MOUNT PLEASANT 38.00 M 1135 AM 12/21 43.62N 84.74W  
   
..JACKSON COUNTY
 
 3 WNW JACKSON 40.00 M 912 AM 12/21 42.26N 84.46W  
   
..KALAMAZOO COUNTY
 
 4 SSE KALAMAZOO 46.00 M 1054 AM 12/21 42.23N 85.56W  
   
..KENT COUNTY
 
 GERALD R FORD ARPT 49.00 M 1242 PM 12/21 42.89N 85.53W  
   
..LMZ844 COUNTY
 
 1 W SOUTH HAVEN 71.00 M 905 AM 12/21 42.40N 86.30W  
   
..MANISTEE COUNTY
 
 1 WNW MANISTEE 54.00 M 1230 AM 12/21 44.25N 86.35W  
   
..MASON COUNTY
 
 2 E LUDINGTON 48.00 M 1234 PM 12/21 43.96N 86.41W  
BIG SABLE POINT 63.00 M 1030 AM 12/21 44.06N 86.51W  
   
..MECOSTA COUNTY
 
 2 NNW BIG RAPIDS 40.00 M 1154 AM 12/21 43.72N 85.50W  
   
..MUSKEGON COUNTY
 
 4 S MUSKEGON 56.00 M 1007 AM 12/21 43.17N 86.24W  
4 W MUSKEGON 61.00 M 855 AM 12/21 43.22N 86.33W  
   
..NEWAYGO COUNTY
 
 3 SW FREMONT 43.00 M 214 PM 12/21 43.44N 85.99W  
   
..OTTAWA COUNTY
 
 5 W HOLLAND 63.00 M 1048 AM 12/21 42.78N 86.21W  
   
..VAN BUREN COUNTY
 
 4 SSE SOUTH HAVEN 55.00 M 1115 AM 12/21 42.35N 86.26W  


Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.