The risk for flash flooding and river rises continues for much of the day south of Interstate 90 with renewed storm development expected in the early afternoon, which could result in another 2 to 4 inches of rain falling over NE Iowa and SW Wisconsin. Read More >
Overview
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The first significant winter storm of the 2024-2025 snow season brought a widespread 2" to 6" of snow with higher amounts from 6" to 8" in spots. As the initial band of snow moved from west to east early Thursday morning locations in southeast Minnesota reported 1" to 3" by the morning commute. This initial snowfall reached the Mississippi River Valley just in time for the morning commute creating slippery to hazardous travel conditions. Overall initial accumulations of 1" to 4" were reported through the morning commute. As the initial bands of snowfall tightened through the late morning during the late morning and afternoon, heavier snowfall bands set up near the Interstate 90 corridor. Another band of snow set up from southeast Minnesota into southwest Wisconsin later in the afternoon and evening, along with patchy freezing drizzle. Overnight, another 1/2" of snow fell across the area. |
 Radar loop on Thursday, December 19th, 2024. |
Snow Totals
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| Local Snowfall Map for Dec 19 2024 |
Regional Snowfall Map for Dec 19 2024 |
Public Information Statement National Weather Service La Crosse WI 926 AM CST Fri Dec 20 2024 ...SNOWFALL REPORTS FOR DECEMBER 19-20... Location Amount Time/Date Lat/Lon ...Iowa... ...Allamakee County... Postville 5.5 NE 3.5 in 0700 AM 12/20 43.14N/91.49W Harpers Ferry 3.0 in 0800 AM 12/20 43.20N/91.15W ...Chickasaw County... New Hampton 3.2 in 0700 AM 12/20 43.06N/92.32W 2 SSE Bassett 3.2 in 0700 AM 12/20 43.04N/92.50W ...Clayton County... Monona 0.2 WNW 4.5 in 0630 AM 12/20 43.05N/91.39W Elkader 6.8 WSW 3.5 in 0615 AM 12/20 42.81N/91.52W Guttenberg Dam 10 3.0 in 0800 AM 12/20 42.79N/91.10W ...Fayette County... Fayette 3.8 in 0700 AM 12/20 42.88N/91.83W Oelwein 1 E 2.8 in 0630 AM 12/20 42.68N/91.88W ...Mitchell County... St Ansgar 2.4 in 0630 AM 12/20 43.38N/92.92W Osage 0.5 in 0715 AM 12/20 43.28N/92.81W ...Winneshiek County... 7 ENE Decorah 4.2 in 0822 AM 12/20 43.34N/91.64W ...Minnesota... ...Dodge County... Mantorville 1.9 ESE 6.3 in 0700 AM 12/20 44.05N/92.72W Hayfield 0.3 SSE 4.6 in 0630 AM 12/20 43.89N/92.85W ...Fillmore County... Harmony 4.5 in 0250 AM 12/20 43.55N/92.01W Wykoff 3.1 NW 4.1 in 0700 AM 12/20 43.74N/92.31W Bratsberg 4.0 in 0733 AM 12/20 43.74N/91.77W Mabel 3.0 in 0820 AM 12/20 43.52N/91.76W ...Houston County... 3 WNW La Crescent 7.0 in 0700 AM 12/20 43.84N/91.36W 1 ENE Mound Prairie 5.5 in 0700 AM 12/20 43.79N/91.42W Hokah 4 NW 5.5 in 0700 AM 12/20 43.80N/91.43W Caledonia 3.7 in 0600 AM 12/20 43.63N/91.50W ...Mower County... Austin 1.1 ESE 3.5 in 0730 AM 12/20 43.67N/92.95W Austin 2.4 W 3.2 in 0700 AM 12/20 43.67N/93.02W Waltham 2.0 SE 2.7 in 0800 AM 12/20 43.80N/92.85W 4 WSW Austin 2.3 in 0815 AM 12/20 43.65N/93.05W ...Olmsted County... 2 NE Rochester 8.0 in 0530 AM 12/20 44.04N/92.44W 1 SSW Oronoco 7.7 in 0824 AM 12/20 44.15N/92.54W Rochester 4.7 N 7.1 in 0700 AM 12/20 44.08N/92.48W 2 NNW Rochester 7.0 in 0700 AM 12/20 44.05N/92.49W Rochester 1.5 WSW 6.6 in 0600 AM 12/20 44.00N/92.50W Stewartville 4.3 E 6.5 in 0600 AM 12/20 43.86N/92.40W Byron 5.5 SE 6.0 in 0730 AM 12/20 43.97N/92.58W Rochester 3.9 ESE 5.5 in 0700 AM 12/20 43.99N/92.41W 3 NW Rochester 5.0 in 0630 AM 12/20 44.05N/92.52W Elgin 2SSW 4.9 in 0700 AM 12/20 44.10N/92.27W ...Wabasha County... Lake City 0.7 SE 7.3 in 0800 AM 12/20 44.43N/92.27W Kellogg 0.1 N 7.0 in 0630 AM 12/20 44.31N/92.00W Zumbro Falls 3.5 SSW 6.0 in 0850 AM 12/20 44.24N/92.46W ...Winona County... 4.2 N Rollingstone 8.1 in 0800 AM 12/20 44.16N/91.81W La Crescent 4.0 NNW 6.8 in 0615 AM 12/20 43.88N/91.34W Winona 2.0 ESE 5.6 in 0700 AM 12/20 44.04N/91.63W 2 SSE Stockton 5.5 in 0833 AM 12/20 44.00N/91.76W ...Wisconsin... ...Adams County... Oxford 4.0 W 8.0 in 0700 AM 12/20 43.79N/89.64W 3 ENE White Creek 8.0 in 0749 AM 12/20 43.84N/89.80W Strongs Prairie 5.8 in 0640 AM 12/20 44.06N/89.98W ...Buffalo County... Cochrane 4.2 NE 7.0 in 0700 AM 12/20 44.27N/91.77W Fountain City 6.5 in 0715 AM 12/20 44.12N/91.70W Mondovi 12.1 SSE 5.5 in 0625 AM 12/20 44.40N/91.60W Alma Dam 4 3.5 in 0800 AM 12/20 44.33N/91.92W ...Clark County... 6 SSE Sidney 4.9 in 0800 AM 12/20 44.47N/90.59W 6 W Thorp 4.0 in 0805 AM 12/20 44.96N/90.92W Thorp 0.5 NNE 3.1 in 0600 AM 12/20 44.97N/90.80W Dorchester 2.6 in 0334 AM 12/20 45.00N/90.33W Thorp 10.1 S 2.3 in 0600 AM 12/20 44.81N/90.82W Owen 1E 1.0 in 0600 AM 12/20 44.95N/90.55W ...Crawford County... 1 S De Soto 5.8 in 0715 AM 12/20 43.41N/91.19W Soldiers Grove 5.5 in 0750 AM 12/20 43.39N/90.77W 1 NNE Prairie Du Chien 3.6 in 0700 AM 12/20 43.05N/91.13W ...Grant County... Fennimore 5.0 in 0730 AM 12/20 42.98N/90.66W 4 S Muscoda 4.4 in 0800 AM 12/20 43.12N/90.45W Cassville 7.8 ENE 2.3 in 0700 AM 12/20 42.75N/90.84W 1 NE Platteville 1.7 in 0700 AM 12/20 42.75N/90.46W ...Jackson County... Black River Falls 6.5 in 0735 AM 12/20 44.30N/90.85W Melrose 3.6 W 6.3 in 0645 AM 12/20 44.13N/91.07W 3 NE North Bend 6.3 in 0755 AM 12/20 44.13N/91.08W ...Juneau County... 3 SSE Mauston 6.7 in 0800 AM 12/20 43.75N/90.06W 1.0 E Mauston 6.0 in 0630 AM 12/20 43.79N/90.06W New Lisbon 6.0 in 0742 AM 12/20 43.88N/90.16W ...La Crosse County... French Island 7.8 in 0600 AM 12/20 43.86N/91.27W Onalaska 1.9 E 7.5 in 0700 AM 12/20 43.89N/91.18W La Crosse 4NNW 6.7 in 0730 AM 12/20 43.87N/91.27W 2 E La Crosse 6.5 in 0919 PM 12/19 43.82N/91.19W 1 WSW West Salem 6.4 in 0836 AM 12/20 43.90N/91.10W Holmen 1.7 SSE 6.1 in 0700 AM 12/20 43.93N/91.24W 5 E Mindoro 6.0 in 0650 AM 12/20 44.02N/90.99W Onalaska 0.5 WSW 5.7 in 0700 AM 12/20 43.89N/91.23W Coon Valley 4.5 NNW 5.5 in 0700 AM 12/20 43.76N/91.06W ...Monroe County... Sparta 7.5 in 0640 AM 12/20 43.94N/90.81W 2 NNW Tomah 6.0 in 0725 AM 12/20 44.01N/90.52W Cashton 3 NNW 5.8 in 0749 AM 12/20 43.79N/90.80W 3 NNE Tunnel City 5.5 in 0949 PM 12/19 44.04N/90.55W ...Richland County... Richland Center 4.0 N 6.5 in 0800 AM 12/20 43.40N/90.39W ...Taylor County... Medford 5.0 in 1228 AM 12/20 45.14N/90.35W Medford 0.8 ENE 3.4 in 0700 AM 12/20 45.14N/90.33W Westboro 3.0 in 0655 AM 12/20 45.35N/90.30W 4 ESE Hannibal 2.4 in 0710 AM 12/20 45.24N/90.70W ...Trempealeau County... Trempealeau 8.0 in 0700 AM 12/20 44.00N/91.44W Ettrick 4.0 WNW 5.9 in 0738 AM 12/20 44.19N/91.34W ...Vernon County... Stoddard 1.5 NE 6.5 in 0645 AM 12/20 43.67N/91.19W 0.5 E Viroqua 5.2 in 0700 AM 12/20 43.56N/90.88W Westby 5.8 NW 5.2 in 0700 AM 12/20 43.70N/90.95W Viroqua 0.8 ESE 5.1 in 0700 AM 12/20 43.55N/90.87W Stoddard 4.7 NNE 5.1 in 0700 AM 12/20 43.72N/91.17W La Farge 4.0 in 0700 AM 12/20 43.57N/90.63W 1 SSE Cashton 3.9 in 0700 AM 12/20 43.72N/90.77W Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. $$
Graphics:
Pre Event:
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| Snowfall forecast graphic for December 19th issued the morning of December 16th (NWS) |
Snowfall forecast graphic for December 19th issued the afternoon of December 17th (NWS) |
Snowfall forecast graphic for December 19th issued the morning of December 18th (NWS) |
Snowfall forecast graphic for December 19th issued the morning of December 19th (NWS) |
Advisories & Warnings:
Local Winter Weather Advisories and Winter Storm Warnings as of December 19th at 3:00pm |
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| Winter Weather Advisories (Purple) and Winter Storm Warnings (Pink) across the Upper Midwest: December 18th 6:00pm (Iowa State Mesonet) |
Winter Weather Advisories (Purple) and Winter Storm Warnings (Pink) across the Upper Midwest: December 19th 12:00pm (Iowa State Mesonet) |
Local Winter Weather Advisories and Winter Storm Warnings as of December 18th at 1:00pm (NWS) |
Local Winter Weather Advisories and Winter Storm Warnings as of December 19th at 3:00pm (NWS) |
During The Event:
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| Snow forecast graphic issued at 5:45am December 19 (NWS) |
Snow forecast graphic issued at 8:05am December 19 (NWS) |
Snow forecast graphic issued at 11:25am December 19 (NWS) |
Snow forecast graphic issued at 2:30pm December 19 (NWS) |
Photos:
Snow
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| Roadside camera image along Interstate 90 in Ridgeway, MN at 7:45am (MNDOT) |
Snow plow camera near Rochester, MN at 6:15am (MNDOT) |
Roadside camera in La Crosse, WI at 7:45am (WIDOT) |
Frozen windshield from an Iowa plow cam taken near Charles City at 1:15pm (IADOT) |
Radar:
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| December 19 Radar Imagery Loop (Iowa State Mesonet) |
Daily Snowfall Records
On December 19, daily snowfall records were set at both La Crosse and Rochester.
La Crosse received 6.6" of snow. The previous record was 5.4" in 1952. Daily snowfall records date back to November 1, 1896.
Rochester received 5.9" of snow. The previous record was 5.4" in 2008. Daily snowfall records date back to January 1, 1893.
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