Overview
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A winter storm brought heavy snow and strong winds to the region on February 4th, 2021. This led to snow covered roads and significant drifting in some areas, along with localized whiteouts. While the snow was heaviest in Wisconsin, the strong winds had a higher impact across parts of northeast Iowa where numerous roads became drifted shut during the afternoon. Travel was not advised in some areas. Ahead of the snow, a mix of freezing rain and sleet also added a light glaze on to untreated roads, parking lots, and sidewalks before the precipitation changed over to all snow during the morning hours. This storm system ushered in sharply colder air leading to an extended period of below normal temperatures and dangerous wind chills. |
 Radar loop from February 4, 2021 |
Snow Reports:
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 1006 AM CST FRI FEB 5 2021 ...SNOWFALL REPORTS FOR FEBRUARY 4... LOCATION AMOUNT TIME/DATE LAT/LON ...IOWA... ...ALLAMAKEE COUNTY... HARPERS FERRY 6.4 SSW 4.8 IN 0700 AM 02/05 43.11N/91.20W POSTVILLE 5.5 NE 4.2 IN 0700 AM 02/05 43.14N/91.49W ...CHICKASAW COUNTY... NEW HAMPTON 0.4 SW 5.0 IN 0700 AM 02/05 43.06N/92.32W NEW HAMPTON 5.0 IN 0700 AM 02/05 43.06N/92.32W ...CLAYTON COUNTY... ELKADER 6.8 WSW 4.1 IN 0545 AM 02/05 42.81N/91.52W ...FAYETTE COUNTY... GUTTENBERG DAM 10 4.0 IN 0700 AM 02/05 42.79N/91.10W FAYETTE 3.0 IN 0648 AM 02/05 42.88N/91.83W ...FLOYD COUNTY... NORA SPRINGS 2.4 SSE 4.0 IN 0700 AM 02/05 43.11N/92.99W MARBLE ROCK 3.3 IN 0629 PM 02/04 42.96N/92.87W CHARLES CITY 3.2 IN 0700 AM 02/05 43.06N/92.67W 4 E ROCKFORD 2.5 IN 0633 PM 02/04 43.05N/92.87W ...MITCHELL COUNTY... ST ANSGAR 3.2 IN 0630 AM 02/05 43.38N/92.92W OSAGE 3.0 IN 0700 AM 02/05 43.28N/92.81W ...WINNESHIEK COUNTY... 3 NNW DECORAH 4.5 IN 0444 PM 02/04 43.35N/91.82W DECORAH 4.3 IN 0700 AM 02/05 43.30N/91.80W DECORAH 7.9 ENE 4.2 IN 0700 AM 02/05 CALMAR 2.8 IN 0654 PM 02/04 43.18N/91.86W ...MINNESOTA... ...DODGE COUNTY... KASSON 3.6 IN 0507 PM 02/04 44.03N/92.75W HAYFIELD 0.3 SSE 2.9 IN 0700 AM 02/05 ...FILLMORE COUNTY... MABEL 6.0 IN 0700 AM 02/05 43.52N/91.76W 1 S PETERSON 5.0 IN 0434 PM 02/04 43.77N/91.83W PRESTON 5.0 IN 0700 AM 02/05 43.67N/92.08W CHATFIELD 9.0 ESE 4.3 IN 0600 PM 02/04 43.79N/92.03W CHATFIELD 4.0 IN 0310 PM 02/04 43.84N/92.19W SPRING VALLEY 4.0 IN 0700 AM 02/05 43.69N/92.39W 2 WSW FILLMORE 3.3 IN 0245 PM 02/04 43.74N/92.31W WYKOFF 3.1 NW 3.3 IN 0700 AM 02/05 43.74N/92.31W RUSHFORD 3.0 IN 1 NW OSTRANDER 3.0 IN 0619 PM 02/04 43.63N/92.44W ...HOUSTON COUNTY... SPRING GROVE 5.0 IN 0912 PM 02/04 43.56N/91.64W LA CRESCENT 4.8 IN 0620 PM 02/04 43.83N/91.31W CALEDONIA 3.8 IN 0700 AM 02/05 43.63N/91.50W ...MOWER COUNTY... AUSTIN 2.4 W 4.0 IN 0636 AM 02/05 43.67N/93.02W 2 NE LANSING 4.0 IN 1251 PM 02/04 43.76N/92.95W AUSTIN 3.5 IN 0233 PM 02/04 43.67N/92.97W ...OLMSTED COUNTY... ROCHESTER 5.7 N 5.6 IN 0700 AM 02/05 44.10N/92.46W ELBA 4.7 SW 4.7 IN 0400 PM 02/04 44.04N/92.09W 1 SSW ORONOCO 3.7 IN 0531 PM 02/04 44.15N/92.54W ROCHESTER 4.7 N 3.5 IN 0700 AM 02/05 44.08N/92.48W 4 NW ROCHESTER 3.3 IN 0631 PM 02/04 44.05N/92.53W ELGIN 2SSW 3.0 IN 0700 AM 02/05 44.10N/92.27W 2 NE ROCHESTER 3.0 IN 0600 AM 02/05 44.04N/92.44W ROCHESTER AIRPORT 3.0 IN 0600 AM 02/05 43.90N/92.49W ROCHESTER 1.5 WSW 3.0 IN 0700 AM 02/05 44.00N/92.50W ROCHESTER 2.6 NE 3.0 IN 0700 AM 02/05 STEWARTVILLE 4.3 E 3.0 IN 0400 AM 02/05 43.86N/92.40W 2 NNW ROCHESTER 2.8 IN 0700 AM 02/05 44.05N/92.49W ROCHESTER 2.5 N 2.8 IN 0700 AM 02/05 ROCHESTER 4.2 N 2.8 IN 0700 AM 02/05 ...WABASHA COUNTY... THEILMAN 1 SSW 3.5 IN 0730 AM 02/05 44.28N/92.19W 0.9 N WABASHA 3.0 IN 0700 AM 02/05 44.38N/92.05W LAKE CITY 3.0 IN 0200 PM 02/04 44.45N/92.27W WABASHA 3.0 IN 0700 AM 02/05 44.39N/92.05W ...WINONA COUNTY... MINNESOTA CITY 5.4 IN 0635 PM 02/04 44.09N/91.75W SAINT CHARLES 4.7 IN 0445 PM 02/04 43.97N/92.06W LA CRESCENT DAM 7 4.2 IN 0700 AM 02/05 43.89N/91.31W 2 SSE GOODVIEW 4.1 IN 0857 PM 02/04 44.05N/91.70W WINONA 4.0 IN 0554 PM 02/04 44.05N/91.66W 3 ESE STOCKTON 4.0 IN 0430 PM 02/04 44.01N/91.71W WINONA DAM 4.0 IN 0700 AM 02/05 44.09N/91.67W WINONA 1.3 SSW 3.1 IN 0700 AM 02/05 44.03N/91.68W ...WISCONSIN... ...ADAMS COUNTY... 0.6 W FRIENDSHIP 8.7 IN 0700 AM 02/05 43.98N/89.83W OXFORD 4.0 W 6.0 IN 0700 AM 02/05 43.79N/89.64W FRIENDSHIP 6.4 N 5.5 IN 0700 AM 02/05 44.06N/89.80W ...BUFFALO COUNTY... COCHRANE 5.1 IN 0330 PM 02/04 44.22N/91.84W BUFFALO 4.3 IN 0445 PM 02/04 44.24N/91.86W 1 S MONDOVI 4.0 IN 0730 PM 02/04 44.55N/91.67W ALMA DAM 4 4.0 IN 0700 AM 02/04 44.33N/91.92W MONDOVI 3.7 IN 0500 PM 02/04 44.56N/91.67W ...CLARK COUNTY... OWEN 1E 8.5 IN 0700 AM 02/05 44.95N/90.55W 1 ESE GRANTON 7.5 IN 0642 PM 02/04 44.58N/90.44W SIDNEY 7.0 IN 0749 PM 02/04 44.55N/90.63W LOYAL 7.0 IN 0535 PM 02/04 44.73N/90.49W NEILLSVILLE 7.0 IN 0416 PM 02/04 44.56N/90.59W 6 N CHILI 6.5 IN 0425 PM 02/04 44.71N/90.34W ...CRAWFORD COUNTY... LYNXVILLE DAM 9.0 IN 0700 AM 02/05 43.21N/91.10W STEUBEN 4SE 8.0 IN 0700 AM 02/05 43.13N/90.84W 1 SW EASTMAN 7.5 IN 0733 PM 02/04 43.15N/91.03W 1 S DE SOTO 6.8 IN 0545 PM 02/04 43.41N/91.19W GAYS MILLS 6.0 IN 0755 PM 02/04 43.32N/90.84W EASTMAN 5.0 IN 0959 AM 02/05 43.17N/91.02W PRAIRIE DU CHIEN 1.4 N 4.8 IN 0700 AM 02/05 43.06N/91.14W PRAIRIE DU CHIEN 3.8 IN 0700 AM 02/05 43.05N/91.14W 1 NW PRAIRIE DU CHIEN 3.7 IN 0536 PM 02/04 43.05N/91.15W ...GRANT COUNTY... CASSVILLE 7.8 ENE 5.9 IN 0700 AM 02/05 42.75N/90.84W 3 SSW BEETOWN 5.9 IN 0630 PM 02/04 42.75N/90.90W BLUE RIVER 5.8 IN 0652 PM 02/04 43.19N/90.57W 3 SSE LANCASTER 5.0 IN 0641 PM 02/04 42.81N/90.70W MUSCODA 4.5 IN 0656 PM 02/04 43.19N/90.43W FENNIMORE 4.0 IN 0727 PM 02/04 42.98N/90.66W ...JACKSON COUNTY... BLACK RIVER FALLS 1.7 NNE 7.1 IN 0700 AM 02/05 44.32N/90.83W BLACK RIVER FALLS 7.0 IN 0630 PM 02/04 44.30N/90.85W MELROSE 6.5 IN 0732 PM 02/04 44.13N/91.00W HIXTON 6.5 IN 0643 PM 02/04 44.38N/91.01W HATFIELD 6.0 IN 0732 PM 02/04 44.42N/90.73W ...JUNEAU COUNTY... MAUSTON 6.3 IN 0634 PM 02/04 43.80N/90.08W CAMP DOUGLAS 6.0 IN 0621 PM 02/04 43.92N/90.27W ELROY 5.0 IN 0648 PM 02/04 43.74N/90.27W ...LA CROSSE COUNTY... COON VALLEY 4.5 NNW 6.6 IN 0700 AM 02/05 2 SSW SAINT JOSEPH 6.6 IN 0542 PM 02/04 43.76N/91.06W BANGOR 6.5 IN 0644 PM 02/04 43.89N/90.99W ROCKLAND 6.5 IN 0621 PM 02/04 43.91N/90.92W NWS LA CROSSE 6.5 IN 0600 PM 02/04 43.82N/91.19W 3 SSW BARRE MILLS 6.0 IN 0901 PM 02/04 43.79N/91.15W MINDORO 6.0 IN 0749 PM 02/04 44.02N/91.10W BARRE MILLS 6.0 IN 0545 PM 02/04 43.84N/91.12W 5 NNE STODDARD 5.8 IN 0856 PM 02/04 43.73N/91.20W LA CROSSE AIRPORT 5.8 IN 0600 PM 02/04 43.86N/91.27W WEST SALEM 0.7 W 5.3 IN 0700 AM 02/05 43.90N/91.10W HOLMEN 1.7 SSE 5.2 IN 0700 AM 02/05 43.93N/91.24W ONALASKA 5.0 IN 0733 PM 02/04 43.89N/91.22W 3 ENE LA CROSSE 5.0 IN 0640 PM 02/04 43.84N/91.18W HOLMEN 5.0 IN 0637 PM 02/04 43.96N/91.26W 1 NNW ONALASKA 5.0 IN 0439 PM 02/04 43.90N/91.23W 1 SSE LA CROSSE 4.7 IN 0445 PM 02/04 43.81N/91.23W 4 NE NEW AMSTERDAM 4.7 IN 0421 PM 02/04 44.03N/91.27W LA CROSSE 4NNW 4.6 IN 0700 AM 02/05 43.87N/91.27W 5 SSE LA CROSSE 4.5 IN 0150 PM 02/04 43.76N/91.20W ...MONROE COUNTY... 1 S WILTON 8.5 IN 0523 PM 02/04 43.80N/90.53W 2 SE TUNNEL CITY 7.8 IN 0600 PM 02/04 43.99N/90.54W SPARTA 7.3 IN 0647 PM 02/04 43.94N/90.81W TOMAH 7.1 IN 0731 PM 02/04 43.99N/90.51W 4 S SPARTA 7.0 IN 0455 PM 02/04 43.89N/90.80W CATARACT 6.5 IN 0602 PM 02/04 44.09N/90.84W 5 SSW SPARTA 6.3 IN 0830 PM 02/04 43.88N/90.83W WILTON 6.0 IN 0500 PM 02/04 43.81N/90.53W WARRENS 6.0 IN 0352 PM 02/04 44.13N/90.50W CASHTON 3 NNW 5.3 IN 0713 AM 02/05 43.79N/90.80W ...RICHLAND COUNTY... RICHLAND CENTER 4.5 IN 0513 PM 02/04 43.34N/90.38W ...TAYLOR COUNTY... MEDFORD 8.0 IN 0500 PM 02/04 45.14N/90.35W MEDFORD 0.8 ENE 7.0 IN 0700 AM 02/05 45.14N/90.33W 1 W MEDFORD 6.0 IN 0300 PM 02/04 45.14N/90.37W ...TREMPEALEAU COUNTY... ETTRICK 4.0 WNW 5.1 IN 0743 AM 02/05 44.19N/91.34W 2 NNE GALESVILLE 5.0 IN 0717 PM 02/04 44.10N/91.35W STRUM 5.0 IN 0659 PM 02/04 44.55N/91.39W GALESVILLE 5.0 IN 0610 PM 02/04 44.08N/91.36W GALESVILLE 4.7 E 4.5 IN 0720 AM 02/05 44.08N/91.26W 2 SSE ELK CREEK 4.0 IN 0450 PM 02/04 44.39N/91.39W TREMPEALEAU DAM 6 4.0 IN 0800 AM 02/05 44.00N/91.44W ARCADIA 3.0 IN 0836 PM 02/04 44.25N/91.49W ...VERNON COUNTY... LA FARGE 7.0 IN 0700 AM 02/05 43.57N/90.63W VIROQUA 7.0 IN 0659 PM 02/04 43.56N/90.89W WESTBY 7.0 IN 0642 PM 02/04 43.65N/90.86W STODDARD 4.7 NNE 6.7 IN 0700 AM 02/05 43.72N/91.17W 3 S GENOA 6.5 IN 0642 PM 02/04 43.53N/91.22W GENOA DAM 8 6.0 IN 0700 AM 02/05 43.57N/91.23W VIOLA 6.0 IN 0841 PM 02/04 43.51N/90.67W 3 NE STODDARD 5.9 IN 0430 PM 02/04 43.69N/91.18W VIROQUA 5.8 IN 0700 AM 02/05 43.56N/90.88W HILLSBORO 2 SW 5.5 IN 0700 AM 02/05 43.63N/90.38W GENOA 5.0 IN 0641 PM 02/04 43.57N/91.23W HILLSBORO 0.5 WSW 5.0 IN 0700 AM 02/05 43.65N/90.35W 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.
Peak Wind Reports:
Public Information Statement National Weather Service La Crosse WI 648 AM CST Fri Feb 5 2021 ...Highest Wind Gusts from 7 AM Thursday, February 4 through 645 AM Friday, February 5... Location Speed Time/Date Lat/Lon ...Iowa... ...Chickasaw County... 2 N Ionia 36 MPH 0400 PM 02/04 43.07N/92.46W ...Fayette County... Oelwein Municipal Airport 44 MPH 0415 PM 02/04 42.68N/91.97W ...Floyd County... Charles City Airport 38 MPH 0455 PM 02/04 43.07N/92.62W ...Howard County... Saratoga 39 MPH 0845 PM 02/04 43.35N/92.42W Riceville 33 MPH 0732 PM 02/04 43.36N/92.48W ...Winneshiek County... 5 NW Frankville 37 MPH 0810 PM 02/04 43.25N/91.70W Decorah Municipal Airport 33 MPH 0755 PM 02/04 43.27N/91.72W ...Minnesota... ...Dodge County... 2 E Kasson 37 MPH 0825 PM 02/04 44.02N/92.71W Dodge Center Airport 35 MPH 0915 PM 02/04 44.02N/92.82W ...Fillmore County... Preston Airport 36 MPH 0815 PM 02/04 43.68N/92.17W 2 ESE Canton 35 MPH 1055 PM 02/04 43.52N/91.89W ...Mower County... 1 ENE Dexter 40 MPH 0905 PM 02/04 43.73N/92.68W Austin Municipal Airport 37 MPH 0735 PM 02/04 43.67N/92.92W ...Olmsted County... Rochester International Airp 43 MPH 0854 PM 02/04 43.90N/92.50W Rochester: Rochester Interna 40 MPH 0336 PM 02/04 43.90N/92.49W Jct CR 7 I-90 Mile Post 226 39 MPH 0910 PM 02/04 43.96N/92.21W Mayo Helipad 38 MPH 0635 PM 02/04 44.02N/92.48W 3 N Stewartville 38 MPH 0335 PM 02/04 43.90N/92.48W Byron 34 MPH 0732 PM 02/04 44.04N/92.64W ...Wabasha County... 1 SSE Kellogg 39 MPH 0915 PM 02/04 44.28N/91.99W Lake City 33 MPH 0358 PM 02/04 44.32N/92.44W ...Winona County... 1 E Ridgeway 33 MPH 1140 PM 02/04 43.91N/91.54W ...Wisconsin... ...Crawford County... Prairie Du Chien Airport 30 MPH 0855 PM 02/04 43.02N/91.12W ...Grant County... Lancaster 42 MPH 0941 PM 02/04 42.83N/90.69W Boscobel Airport 35 MPH 0653 PM 02/04 43.15N/90.68W Boscobel: Boscobel Airport 35 MPH 0653 PM 02/04 43.16N/90.68W ...Juneau County... Volk Field 38 MPH 0756 PM 02/04 43.92N/90.27W Necedah 32 MPH 1148 PM 02/04 44.03N/90.08W Mauston Airport 31 MPH 0335 AM 02/05 43.83N/90.13W ...La Crosse County... La Crosse Regional Airport 40 MPH 0753 PM 02/04 43.88N/91.25W La Crosse - La Crosse Region 32 MPH 0827 PM 02/04 43.88N/91.26W ...Taylor County... Medford Airport 30 MPH 0855 PM 02/04 45.10N/90.30W 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.
Misc Information
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| Warnings and Advisories in effect at the time. (NWS) |
Winter Storm Severity Index (NWS) |
Northeast Iowa road conditions at 11:24 a.m. (IADOT) |
Total observed snowfall (Feb.3-4) (NWS) |
Photos:
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| NWS La Crosse at peak snow (NWS) |
Onalaska, WI (Courtesy of Bill Anderson) |
Howard Co. IA webcam (IADOT) |
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| Rural Iowa on Feb.5th (IADOT) |
Rural Iowa on Feb.5th (IADOT) |
Rural Iowa on Feb.5th (IADOT) |
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