Snow Storm of December 9th, 2012

What Happened?

A low pressure system tracked east from the Northern Plains to across central and southern Minnesota on Sunday (December 9th), and then into central Wisconsin Sunday night.  Heavy snow developed across southern Minnesota and northeast Iowa Saturday night, spreading into western Wisconsin shortly before daybreak Sunday. The snow continued to fall into Sunday night. The snow was heavy at times along and north of the Interstate 90 corridor.

Snow accumulations generally ranged from 1 to 3 inches by noon Sunday across southeast Minnesota, northeast Iowa, and western Wisconsin. During the afternoon, the snowfall intensified along and north of Interstate 90 as the low moved into southeast Minnesota.  The snow switched over to freezing drizzle across northeast Iowa and portions of southeast Minnesota late Sunday afternoon and evening as drier air wrapped into the low. The snow gradually tapered off across southeast Minnesota Sunday evening, but continued to fall across west-central and central Wisconsin. The drier air eventually made its way into west-central Wisconsin during the late evening hours with the heavier snow switching over to a mix of freezing drizzle and light snow. This mix then continued to fall across central Wisconsin into early Monday morning.
  • High Rez Radar loop (approx 36 hours) of the snow event - this is a larger file and make take a few minutes to load
radar loop of the snow event
36 hour radar loop of the snow event

Snowfall totals by late Sunday evening ranged from 4 to 10 inches across southeast Minnesota into west-central and central Wisconsin.  Up to 15 inches of snow were reported in central and east-central Minnesota.

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Snow Totals

snow totals from December 9 2012 regional snow totals from December 9 2012
48 hour snowfall totals for the local area and region. Click on an image to enlarge.

...STORM TOTAL SNOWFALL DECEMBER 9-10 2012...

...LOCATION...                             ...TIME...      ...AMT...

...IOWA...

...ALLAMAKEE COUNTY...
LANSING 4SE (830 FT)(COOP)                 700 AM DEC 10      4.2 IN
WAUKON 5 E                                 601 AM DEC 10      3.5 IN

...CHICKASAW COUNTY...
IONIA 2W (1019 FT)(COOP)                   700 AM DEC 10      1.5 IN

...CLAYTON COUNTY...
MONONA WWTP (1185 FT)(UCOOP)               700 AM DEC 10      3.5 IN
GUTTENBERG DAM 10 (624 FT)(COOP)           600 AM DEC 10      3.0 IN
ELKADER 6SSW (788 FT)(COOP)                700 AM DEC 10      2.6 IN
VOLGA 1NE (826 FT)(UCOOP)                  700 AM DEC 10      1.3 IN

...FAYETTE COUNTY...
CLERMONT (845 FT)(COOP)                    700 AM DEC 10      2.7 IN
OELWEIN 1E (1165 FT)(COOP)                 630 AM DEC 10      2.7 IN
FAYETTE (COOP)                             700 AM DEC 10      1.5 IN
WEST UNION (PUBLIC)                        200 PM DEC 10      2.0 IN

...FLOYD COUNTY...
NASHUA 2SW (1035 FT)(COOP)                 700 AM DEC 10      1.0 IN
CHARLES CITY (993 FT)(COOP)                700 AM DEC 10      0.7 IN

...HOWARD COUNTY...
CRESCO 1NE (1255 FT)(COOP)                 700 AM DEC 10      2.0 IN

...MITCHELL COUNTY...
RICEVILLE (PUBLIC)                         700 AM DEC 10      3.0 IN
OSAGE (COOP)                               700 AM DEC 10      2.3 IN
ST ANSGAR (1139 FT)(COOP)                  630 AM DEC 10      1.4 IN

...WINNESHIEK COUNTY...
CALMAR (PUBLIC)                            700 AM DEC 10      2.9 IN
4 S SATTRE (948 FT)(COCORAHS)              600 AM DEC 10      1.6 IN

...MINNESOTA...

...DODGE COUNTY...
MANTORVILLE PUBLIC                         607 PM DEC 9       5.5 IN
2 SSE CLAREMONT (1273 FT)(COCORAHS)        700 AM DEC 10      3.6 IN

...FILLMORE COUNTY...
SPRING VALLEY 3E                           700 AM DEC 10      4.4 IN
LANESBORO (955 FT)(COOP)                   700 AM DEC 10      3.4 IN
PRESTON (930 FT)(COOP)                     800 AM DEC 10      3.0 IN
PETERSON 1S                                705 PM DEC 9       3.0 IN
SPRING VALLEY                              700 AM DEC 10      3.0 IN

...HOUSTON COUNTY...
RENO 3SW  (UCOOP)                          927 PM DEC 9       6.7 IN
LA CRESCENT 1N (UCOOP)                     700 AM DEC 10      6.7 IN
2 ENE WILMINGTON (1094 FT)(COCORAHS)       800 AM DEC 10      4.5 IN
CALEDONIA (1184 FT)(COOP)                  700 AM DEC 10      4.0 IN
SPRING GROVE 4N (1145 FT)(COOP)            700 AM DEC 10      3.6 IN

...MOWER COUNTY...
GRAND MEADOW (1350 FT)(COOP)               600 AM DEC 10      4.0 IN
AUSTIN 1W (PUBLIC)                         922 OM DEC 9       2.3 IN
AUSTIN WASTE WATER TREATMENT FACILITY      700 AM DEC 10      1.0 IN

...OLMSTED COUNTY...
ORONOCO (PUBLIC)                           435 PM DEC 10      5.2 IN
ELGIN 2SSW (1110 FT)(COOP)                 700 AM DEC 10      4.1 IN
ROCHESTER INTERNATIONAL AIRPORT (ASOS)     600 AM DEC 10      4.1 IN
BYRON 4 NORTH (1041 FT)(COOP)              700 AM DEC 10      3.8 IN
3 W ROCHESTER (1155 FT)(COCORAHS)          730 AM DEC 10      3.6 IN

...WABASHA COUNTY...
READS LANDING 1W (PUBLIC)                  759 PM DEC 9      10.2 IN
WABASHA (700 FT)(COOP)                     700 AM DEC 10      9.0 IN
THEILMAN 1SSW (737 FT)(COOP)               800 AM DEC 10      8.3 IN
ZUMBRO FALLS 2NE (1033 FT)(UCOOP)          700 AM DEC 10      7.0 IN
4 SSW ZUMBRO FALLS (1106 FT)(COCORAHS)     800 AM DEC 10      6.9 IN

...WINONA COUNTY...
WINONA (PUBLIC)                            856 PM DEC 9       7.7 IN
WINONA 3S (PUBLIC)                         601 AM DEC 10      6.5 IN
GOODVIEW (PUBLIC)                          647 AM DEC 10      6.3 IN
MINNESOTA CITY (PUBLIC)                    700 AM DEC 10      6.3 IN
WINONA 4SW (PUBLIC)                        826 AM DEC 10      6.0 IN
MINNESOTA CITY DAM 5 (670 FT)(COOP)        700 AM DEC 10      5.3 IN
LA CRESCENT DAM 7 (647 FT)(COOP)           600 AM DEC 10      5.0 IN
WINONA DAM 5A (663 FT)(COOP)               600 AM DEC 10      4.6 IN
ST CHARLES 5N (PUBLIC)                     750 PM DEC 9       4.1 IN

...WISCONSIN...

...ADAMS COUNTY...
MONROE CENTER 1E (960 FT)(UCOOP)           700 AM DEC 10      4.0 IN
FRIENDSHIP (PUBLIC)                        526 AM DEC 10      4.0 IN
FRIENDSHIP (958 FT)(COOP)                  700 AM DEC 10      3.3 IN

...BUFFALO COUNTY...
ALMA DAM 4 (670 FT)(COOP)                  600 AM DEC 10      5.2 IN

...CLARK COUNTY...
ROCK DAM                                   700 AM DEC 10     10.0 IN
5 NW TIOGA (COOP)                          700 AM DEC 10     10.0 IN
NEILLSVILLE (PUBLIC)                       443 AM DEC 10      8.0 IN
NEILLSVILLE 3ESE (1080 FT)(COOP)           700 AM DEC 10      7.8 IN
COLBY 4SW                                  525 AM DEC 10      7.0 IN
OWEN 2N (1280 FT)(COOP)                    800 AM DEC 10      5.8 IN

...CRAWFORD COUNTY...
4 N PLUGTOWN (1109 FT)(COCORAHS)           700 AM DEC 10      5.1 IN
SOLDIERS GROVE (920 FT)(UCOOP)             715 AM DEC 10      4.6 IN
BELL CENTER 5ESE (PUBLIC)                  700 AM DEC 10      4.5 IN
STEUBEN 4SE (1050 FT)(COOP)                815 AM DEC 10      3.6 IN
FERRYVILLE 4ESE (767 FT)(UCOOP)            700 AM DEC 10      3.0 IN
LYNXVILLE DAM 9 (633 FT)(COOP)             600 AM DEC 10      3.0 IN
PRAIRIE DU CHIEN (630 FT)(COOP)            700 AM DEC 10      1.6 IN

...GRANT COUNTY...
SINSINAWA (COOP)                           700 AM DEC 10      4.3 IN
LANCASTER (COCORAHS)                       700 AM DEC 10      4.0 IN
DICKEYVILLE (PUBLIC)                       705 AM DEC 10      4.0 IN
PLATTEVILLE (PUBLIC)                       704 AM DEC 10      3.7 IN
CUBA CITY (COOP)                           700 AM DEC 10      3.2 IN

...JACKSON COUNTY...
BLACK RIVER FALLS SEWAGE (810 FT)(COOP)    830 AM DEC 10      6.6 IN
MATHER 3NW                                 700 AM DEC 10      6.5 IN
15 E MILLSTON                              700 AM DEC 10      6.5 IN
HATFIELD DAM                               700 AM DEC 10      5.0 IN

...JUNEAU...
MAUSTON                                    445 AM DEC 10      2.0 IN

...LA CROSSE COUNTY...
LA CROSSE 4NNW (660 FT)(COOP)              730 AM DEC 10      7.0 IN
LA CROSSE MUNICIPAL AIRPORT (ASOS)         600 AM DEC 10      7.0 IN
LA CROSSE NWS                              600 AM DEC 10      7.0 IN
HOLMEN 2S (718 FT)(UCOOP)                  700 AM DEC 10      6.3 IN
WEST SALEM (720 FT)(UCOOP)                 700 AM DEC 10      6.0 IN
FOUR CORNERS (913 FT)(UCOOP)               700 AM DEC 10      5.8 IN
3 E ONALASKA (NWS EMPLOYEE)                700 AM DEC 10      5.8 IN
LA CROSSE 5SE (UCOOP)                      700 AM DEC 10      5.0 IN
2 NW ONALASKA (718 FT)(COCORAHS)           700 AM DEC 10      4.3 IN

...MONROE COUNTY...
WARRENS 4WSW (1101 FT)(UCOOP)              700 AM DEC 10      8.1 IN
TUNNEL CITY (1053 FT)(UCOOP)               700 AM DEC 10      5.9 IN
CASHTON (PUBLIC)                           902 PM DEC 9       5.5 IN
SPARTA (COOP)                              800 AM DEC 10      4.2 IN

...RICHLAND COUNTY...
RICHLAND CENTER 1NW (944 FT)(UCOOP)        700 AM DEC 10      4.5 IN
RICHLAND CENTER 4N (820 FT)(UCOOP)         700 AM DEC 10      2.5 IN

...TAYLOR COUNTY...
JUMP RIVER 1 NW (1195 FT)(UCOOP)           700 AM DEC 10      6.0 IN
MEDFORD (1470 FT)(COOP)                    800 AM DEC 10      4.0 IN

...TREMPEALEAU COUNTY...
OSSEO (965 FT)(UCOOP)                      700 AM DEC 10     10.8 IN
ARCADIA (PUBLIC)                           912 PM DEC 9       8.0 IN
ETTRICK 4WNW (818 FT)(UCOOP)               717 AM DEC 10      7.4 IN
GALESVILLE 2WSW (771 FT)(UCOOP)            700 AM DEC 10      6.0 IN
TREMPEALEAU DAM 6 (660 FT)(COOP)           600 AM DEC 10      5.6 IN

...VERNON COUNTY...
LA FARGE (810 FT)(COOP)                    700 AM DEC 10      5.7 IN
VIROQUA (1250 FT)(COOP)                    700 AM DEC 10      5.6 IN
ONTARIO 4 WSW (1073 FT)(UCOOP)             700 AM DEC 10      5.5 IN
STODDARD 5NNE (646 FT)(UCOOP)              700 AM DEC 10      5.0 IN
WESTBY 3ENE (1282 FT)(COOP)                700 AM DEC 10      4.8 IN
STODDARD (654 FT)(UCOOP)                   700 AM DEC 10      4.0 IN
ONTARIO 3E (960 FT)(COOP)                  700 AM DEC 10      4.0 IN
GENOA DAM 8 (639 FT)(COOP)                 600 AM DEC 10      3.0 IN


OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING
EQUIPMENT AND EXPOSURES. NOT ALL DATA LISTED IS CONSIDERED OFFICIAL. THE
NATIONAL WEATHER SERVICE THANKS ITS PRIVATE AND PUBLIC PARTNERS FOR
PROVIDING US WITH THIS DATA.

$$

NWS LA CROSSE

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