Severe Storms Of September 20th, 2021

Overview

A cold front moved across the region during the afternoon and evening of September 20, 2021. Thunderstorms developed along this front during the early afternoon and advanced to the northeast before exiting the area mid evening.

The main hazard from the storms was wind gusts that produced damage with a couple reports of gusts exceeding 60 mph.

At least two tornadoes occurred - a brief touchdown in rural Olmsted Co., MN and just south of Strum, WI in Trempealeau Co. A house and cabin sustained damage and a pole barn was destroyed.

The storms also produced some brief heavy rains with most rainfall totals averaging a half inch up to 1.25 inches. With the recent dry conditions, only minor urban flooding was noted.

Radar loop 4:00-9:00 p.m., September 20, 2021

Tornado
Wind
Photos
Radar
Storm Reports
Rainfall

Tornadoes:

Tornado - Rural Olmsted Co., Minnesota
Olmsted County

Date	9/20/2021
Time (Local)	4:50 pm - 4:54 pm
EF Rating	EF0
Est. Peak Winds	80 mph
Path Length	2.4 miles
Max Width	50 yards
Injuries/Deaths	0 / 0
Summary: A brief tornado touched down about 4 miles north-northwest of Dover, MN that damaged a few barns.

Track Map

Downloadable KMZ File

Tornado - South of Strum, Wisconsin
Trempealeau County

Date	9/20/2021
Time (Local)	5:57 pm - 6:13 pm
EF Rating	EF1
Est. Peak Winds	105 mph
Path Length	8.8 miles
Max Width	75 yards
Injuries/Deaths	1 / 0
Summary: The tornado first touched down about 5-6 miles north of Independence, WI where a lofted debris signature was seen on radar. The tornado continued northeast toward Osseo, damaging trees, barns and outbuildings, before lifting 3 miles southeast of Strum, WI. A truck driver was injured when his semi was rolled by the tornado.

Track Map

Downloadable KMZ File

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Wind:

Public Information Statement
National Weather Service La Crosse WI
535 AM CDT Tue Sep 21 2021

...HIGHEST WIND REPORTS FROM LAST 24 HOURS...

Location                     Speed     Time/Date       Lat/Lon

...Iowa...

...Chickasaw County...
2 N Ionia                    34 MPH    0450 PM 09/20   43.07N/92.46W

...Fayette County...
Oelwein Municipal Airport    31 MPH    0755 PM 09/20   42.68N/91.97W

...Floyd County...
Charles City Airport         40 MPH    0435 PM 09/20   43.07N/92.62W

...Howard County...
Riceville                    36 MPH    0446 PM 09/20   43.36N/92.48W

...Winneshiek County...
Decorah Municipal Airport    30 MPH    0415 PM 09/20   43.27N/91.72W

...Minnesota...

...Dodge County...
Dodge Center Airport         32 MPH    0155 PM 09/20   44.02N/92.82W

...Fillmore County...
Preston Airport              31 MPH    0655 PM 09/20   43.68N/92.17W

...Mower County...
Austin Municipal Airport     41 MPH    0355 PM 09/20   43.67N/92.92W
1 ENE Dexter                 35 MPH    0420 PM 09/20   43.73N/92.68W

...Olmsted County...
Rochester International Airp 46 MPH    0424 PM 09/20   43.90N/92.50W
3 N Stewartville             45 MPH    0430 PM 09/20   43.90N/92.48W
Mayo Helipad                 41 MPH    0435 PM 09/20   44.02N/92.48W
Jct CR 7 I-90 Mile Post 226  39 MPH    0450 PM 09/20   43.96N/92.21W
Altura                       30 MPH    0520 PM 09/20   44.13N/92.58W

...Wabasha County...
Lake City                    33 MPH    0716 PM 09/20   44.32N/92.44W
Wabasha                      31 MPH    0518 PM 09/20   44.30N/92.00W

...Winona County...
1 E Ridgeway                 30 MPH    0900 PM 09/20   43.91N/91.54W

...Wisconsin...

...Grant County...
Boscobel Airport             48 MPH    0725 PM 09/20   43.15N/90.68W
Lancaster                    48 MPH    0841 PM 09/20   42.83N/90.69W
Boscobel                     39 MPH    0803 PM 09/20   43.15N/90.68W
Lancaster                    39 MPH    0800 PM 09/20   42.83N/90.79W
Platteville Municipal Airpor 37 MPH    0815 PM 09/20   42.68N/90.43W

...La Crosse County...
La Crosse Regional Airport   58 MPH    0619 PM 09/20   43.88N/91.25W
La Crosse                    37 MPH    0630 PM 09/20   43.77N/91.22W
Onalaska                     31 MPH    0755 PM 09/20   43.89N/91.18W

...Monroe County...
Sparta/Fort McCoy Airport    36 MPH    0703 PM 09/20   43.97N/90.73W

...Taylor County...
Westboro                     37 MPH    0825 PM 09/20   45.37N/90.31W
Medford Airport              32 MPH    0755 PM 09/20   45.10N/90.30W
Gilman                       31 MPH    0735 PM 09/20   45.17N/90.82W

...Vernon County...
Viroqua Municipal Airport    37 MPH    0715 PM 09/20   43.58N/90.90W

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.

$$

Photos:


Tornado damage along County Road D (Source: Trempealeau Co. Emerg.Mgmt)	Tornado damage along County Road D (Source: Trempealeau Co. Emerg.Mgmt)	Tornado damage along County Road D (Source: Trempealeau Co. Emerg.Mgmt)	Tornado damage at Hwy.93 and County Road VV (Source: Trempealeau Co. Emerg.Mgmt)


Tornado damage in Trempealeau County (Source: NWS damage survey)	Tornado damage in Trempealeau County â€‹(Source: NWS damage survey)	Tornado damage in Trempealeau County â€‹(Source: NWS damage survey)	Tornado damage in Trempealeau County â€‹(Source: NWS damage survey)

Radar:


Loop from 5:50-6:13pm showing the tornado debris signature (yellow/blue circle traveling northeast) from the tornado in Trempealeau county. The pink box indicates the NWS-issued Tornado Warning.

Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
320 PM CDT TUE SEP 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     TSTM WND GST     3 E AUSTIN              43.67N 92.92W
09/20/2021  M41 MPH          MOWER              MN   AWOS             

            AWOS STATION KAUM AUSTIN MUNICIPAL AIRPORT. 

0405 PM     TSTM WND DMG     MANTORVILLE             44.07N 92.76W
09/20/2021                   DODGE              MN   LAW ENFORCEMENT  

            REPORT OF A TREE DOWN. 

0405 PM     TSTM WND DMG     DODGE CENTER            44.03N 92.85W
09/20/2021                   DODGE              MN   LAW ENFORCEMENT  

            REPORT OF A TREE DOWN. 

0420 PM     HAIL             2 NE ROCHESTER          44.03N 92.45W
09/20/2021  M0.25 INCH       OLMSTED            MN   COCORAHS         

            HAILED FOR 2 MINUTES. 

0420 PM     TSTM WND GST     1 ENE DEXTER            43.73N 92.68W
09/20/2021  M35 MPH          MOWER              MN   MESONET          

            MESONET STATION MN010 1 ENE DEXTER. 

0420 PM     TSTM WND GST     MARBLE ROCK             42.96N 92.87W
09/20/2021  E45 MPH          FLOYD              IA   FIRE DEPT/RESCUE 

            MANY BRANCHES UP TO 3 INCHES IN DIAMETER 
            DOWN THROUGHOUT TOWN. 

0424 PM     TSTM WND GST     3 NNW STEWARTVILLE      43.90N 92.50W
09/20/2021  M46 MPH          OLMSTED            MN   ASOS             

            ASOS STATION KRST ROCHESTER INTERNATIONAL 
            AIRPORT. 

0425 PM     HAIL             1 NNW ROCHESTER         44.02N 92.48W
09/20/2021  E0.25 INCH       OLMSTED            MN   PUBLIC           

0425 PM     HAIL             1 SSW ROCHESTER         44.00N 92.48W
09/20/2021  E0.88 INCH       OLMSTED            MN   BROADCAST MEDIA  

            DIME TO NICKEL HAIL REPORTED. 

0430 PM     TSTM WND GST     3 N STEWARTVILLE        43.90N 92.48W
09/20/2021  M45 MPH          OLMSTED            MN   MESONET          

            MESONET STATION MN070 3 N STEWARTVILLE. 

0431 PM     TSTM WND DMG     CHARLES CITY            43.06N 92.67W
09/20/2021                   FLOYD              IA   CO-OP OBSERVER   

            2 TO 4 INCH BRANCHES DOWN WITH A FEW UP TO 6 
            INCHES IN DIAMETER. 

0431 PM     TSTM WND GST     CHARLES CITY            43.07N 92.67W
09/20/2021  E65 MPH          FLOYD              IA   FIRE DEPT/RESCUE 

            WINDS ESTIMATED 60 TO 70 AT THE FIRE 
            STATION. 

0435 PM     TSTM WND GST     ROCHESTER               44.02N 92.48W
09/20/2021  M41 MPH          OLMSTED            MN   AWOS             

            AWOS STATION K9MN MAYO HELIPAD. 

0435 PM     TSTM WND GST     3 E CHARLES CITY        43.07N 92.62W
09/20/2021  M40 MPH          FLOYD              IA   AWOS             

            AWOS STATION KCCY CHARLES CITY AIRPORT. 

0441 PM     TSTM WND DMG     BASSETT                 43.06N 92.52W
09/20/2021                   CHICKASAW          IA   LAW ENFORCEMENT  

            TREES DOWN. 

0446 PM     TSTM WND GST     4 W SARATOGA            43.36N 92.48W
09/20/2021  M36 MPH          HOWARD             IA   MESONET          

            MESONET STATION EW4652 RICEVILLE. 

0450 PM     TSTM WND GST     2 SSE EYOTA             43.96N 92.21W
09/20/2021  M39 MPH          OLMSTED            MN   MESONET          

            MESONET STATION MN011 JCT CR 7 I-90 MILE POST 226. 

0450 PM     TSTM WND GST     2 N IONIA               43.07N 92.46W
09/20/2021  M34 MPH          CHICKASAW          IA   MESONET          

            MESONET STATION RNHI4 2 N IONIA. 

0518 PM     TSTM WND GST     KELLOGG                 44.30N 92.00W
09/20/2021  M31 MPH          WABASHA            MN   MESONET          

            MESONET STATION FW1865 WABASHA. 

0540 PM     HAIL             2 NE FOUNTAIN CITY      44.14N 91.67W
09/20/2021  E0.25 INCH       BUFFALO            WI   TRAINED SPOTTER  

0544 PM     HAIL             WILSON                  43.96N 91.69W
09/20/2021  E0.75 INCH       WINONA             MN   EMERGENCY MNGR   

            DIME SIZED HAIL AT INTERSTATE 90 AND STATE 
            HIGHWAY 43 NORTH. 

0545 PM     TSTM WND GST     1 ENE WINONA            44.05N 91.64W
09/20/2021  M64 MPH          WINONA             MN   PUBLIC           

0545 PM     HAIL             2 NW WITOKA             43.95N 91.64W
09/20/2021  U0.50 INCH       WINONA             MN   PUBLIC           

            REPORT FROM MPING: HALF-INCH (0.50 IN.). 

0547 PM     TSTM WND GST     INDEPENDENCE            44.36N 91.42W
09/20/2021  M70 MPH          TREMPEALEAU        WI   PUBLIC           

0600 PM     TORNADO          1 SSE CHIMNEY ROCK      44.45N 91.41W
09/20/2021                   TREMPEALEAU        WI   LAW ENFORCEMENT  

            SEMI BLOWN OVER AT THE INTERSECTION OF STATE 
            HIGHWAY 93 AND COUNTY ROAD VV. 

0603 PM     TORNADO          3 NE CHIMNEY ROCK       44.50N 91.36W
09/20/2021                   TREMPEALEAU        WI   LAW ENFORCEMENT  

            LOTS OF DEBRIS ON COUNTY ROAD D SOUTH OF 
            STRUM WITH A HOUSE POSSIBLE SUSTAINING 
            DAMAGE. 

0603 PM     TORNADO          3 NE CHIMNEY ROCK       44.50N 91.36W
09/20/2021                   TREMPEALEAU        WI   EMERGENCY MNGR   

            DAMAGE TO A PORCH AND 4 SEASON ROOM AT A 
            RESIDENCE. POLE BARN ALSO DESTROYED. 

0619 PM     TSTM WND GST     2 NNE FRENCH ISLAND     43.88N 91.25W
09/20/2021  M58 MPH          LA CROSSE          WI   ASOS             

            ASOS STATION KLSE LA CROSSE REGIONAL AIRPORT. 

0627 PM     LIGHTNING        HOUSTON                 43.76N 91.57W
09/20/2021                   HOUSTON            MN   LAW ENFORCEMENT  

            HOUSE FIRE IN HOUSTON LIKELY STARTED BY 
            LIGHTNING. FIRST REPORTED BY KTTC. 

0634 PM     TSTM WND DMG     4 E MINDORO             44.04N 91.02W
09/20/2021                   LA CROSSE          WI   PUBLIC           

            REPORT FROM MPING: TREES UPROOTED OR 
            SNAPPED; ROOF BLOWN OFF. 

0654 PM     TSTM WND GST     3 N GUTTENBERG          42.83N 91.11W
09/20/2021  M60 MPH          CLAYTON            IA   PUBLIC           

            REPORT VIA TWITTER. 

0703 PM     TSTM WND GST     4 ENE SPARTA            43.97N 90.73W
09/20/2021  M36 MPH          MONROE             WI   AWOS             

            AWOS STATION KCMY SPARTA/FORT MCCOY AIRPORT. 

0715 PM     TSTM WND GST     2 NNW VIROQUA           43.58N 90.90W
09/20/2021  M37 MPH          VERNON             WI   AWOS             

            AWOS STATION KY51 VIROQUA MUNICIPAL AIRPORT. 

0716 PM     TSTM WND DMG     BOSCOBEL                43.14N 90.70W
09/20/2021                   GRANT              WI   LAW ENFORCEMENT  

            TREE DOWN ON A POWER LINE AND STARTED ON 
            FIRE. 

0720 PM     TSTM WND DMG     3 SE VIOLA              43.47N 90.64W
09/20/2021                   RICHLAND           WI   LAW ENFORCEMENT  

            ROOF BLOWN OFF A SHED. 

0725 PM     TSTM WND GST     1 NE BOSCOBEL           43.15N 90.68W
09/20/2021  M48 MPH          GRANT              WI   ASOS             

            ASOS STATION KOVS BOSCOBEL AIRPORT. 

0730 PM     FUNNEL CLOUD     2 N HILLSBORO           43.69N 90.34W
09/20/2021                   VERNON             WI   PUBLIC           

            RELAYED TO VERNON COUNTY DISPATCH. 

0735 PM     TSTM WND GST     1 WNW GILMAN            45.17N 90.82W
09/20/2021  M31 MPH          TAYLOR             WI   MESONET          

            MESONET STATION EW5960 GILMAN. 

0740 PM     TSTM WND DMG     3 NNW BURTON            42.75N 90.84W
09/20/2021                   GRANT              WI   PUBLIC           

            REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; 
            SHINGLES BLOWN OFF. 

0810 PM     TSTM WND DMG     5 NE WHITE CREEK        43.88N 89.80W
09/20/2021                   ADAMS              WI   LAW ENFORCEMENT  

            TREE DOWN NEAR 11TH AVE AND EDGEWOOD AVE 
            JUNCTION. 

0815 PM     TSTM WND GST     4 SSE PLATTEVILLE       42.68N 90.43W
09/20/2021  M37 MPH          GRANT              WI   AWOS             

            AWOS STATION KPVB PLATTEVILLE MUNICIPAL 
            AIRPORT. 

0820 PM     TSTM WND DMG     4 ENE ADAMS             43.97N 89.74W
09/20/2021                   ADAMS              WI   LAW ENFORCEMENT  

            TREES DOWN NEAR DEERBORN AVE AND 8TH AVE JUNCTION. 

0841 PM     TSTM WND GST     2 SE LANCASTER          42.83N 90.69W
09/20/2021  M48 MPH          GRANT              WI   MESONET          

            MESONET STATION LKRW3 LANCASTER. 

&&

Rain Reports

Public Information Statement
National Weather Service La Crosse WI
1032 AM CDT Tue Sep 21 2021

...24-Hour Rainfall Reports...

Location                     Amount    Time/Date       Lat/Lon

...Iowa...

...Allamakee County...
Lansing 4.1 NW               1.40 in   0700 AM 09/21   43.40N/91.29W
Postville 5.5 NE             1.06 in   0700 AM 09/21   43.14N/91.49W
Harpers Ferry 6.4 SSW        0.90 in   0700 AM 09/21   43.11N/91.20W
3 SE Waterville              0.87 in   1007 AM 09/21   43.17N/91.24W
Monona 9.8 N                 0.84 in   0700 AM 09/21   43.19N/91.35W
Harpers Ferry 4.1 SW         0.74 in   0800 AM 09/21   43.16N/91.21W
5 SW Waukon Jct              0.42 in   0700 AM 09/21   43.11N/91.27W

...Chickasaw County...
Fredericksburg 0.3 S         0.37 in   0800 AM 09/21   42.96N/92.20W
New Hampton                  0.11 in   0700 AM 09/21   43.06N/92.32W

...Clayton County...
Elkader 6.8 WSW              1.54 in   0600 AM 09/21   42.81N/91.52W
Elkader 6SSW                 1.41 in   0700 AM 09/21   42.78N/91.45W
Guttenberg Dam 10            1.10 in   0700 AM 09/21   42.79N/91.10W
Strawberry Point             0.96 in   0700 AM 09/21   42.69N/91.53W
1 WSW Marquette              0.61 in   1000 AM 09/21   43.04N/91.21W
Big Spring Fish Hatchery     0.55 in   1000 AM 09/21   42.91N/91.47W

...Fayette County...
Fayette                      0.80 in   0700 AM 09/21   42.88N/91.83W
Eldorado 1E - Turkey River   0.62 in   0300 AM 09/21   43.05N/91.81W
Waucoma 3.2 S                0.54 in   0700 AM 09/21   43.01N/92.03W
Oelwein 1 E                  0.53 in   0630 AM 09/21   42.68N/91.88W

...Floyd County...
Nora Springs 2.4 SSE         0.85 in   0700 AM 09/21   43.11N/92.99W
2 NE Dougherty               0.63 in   1010 AM 09/21   42.95N/93.01W
Charles City                 0.59 in   0700 AM 09/21   43.06N/92.67W

...Mitchell County...
Osage 4.7 E                  0.65 in   0700 AM 09/21   43.28N/92.72W
Osage                        0.47 in   0700 AM 09/21   43.28N/92.81W
St Ansgar                    0.30 in   0630 AM 09/21   43.38N/92.92W

...Winneshiek County...
Decorah 4.9SE                1.27 in   0700 AM 09/21   43.26N/91.70W
7 ENE Decorah                0.77 in   0836 AM 09/21   43.34N/91.64W
Decorah                      0.46 in   1015 AM 09/21   43.30N/91.79W
Decorah Municipal Airport    0.39 in   1015 AM 09/21   43.27N/91.72W
1 ENE Jackson Junction       0.28 in   1015 AM 09/21   43.11N/92.04W

...Minnesota...

...Dodge County...
Hayfield 0.3 SSE             1.10 in   0230 AM 09/21   43.89N/92.85W
Claremont 3.1 S              0.52 in   0700 AM 09/21   44.00N/92.99W
Mantorville 1.9 ESE          0.50 in   0700 AM 09/21   44.05N/92.72W
Claremont 2.5 ESE            0.51 in   0800 AM 09/21   44.04N/92.95W

...Fillmore County...
Wykoff 3.1 NW                0.81 in   0700 AM 09/21   43.74N/92.31W
Mabel                        0.69 in   0630 AM 09/21   43.52N/91.76W
Chatfield 0.7 SW             0.68 in   0700 AM 09/21   43.84N/92.20W
Preston Airport              0.57 in   0955 AM 09/21   43.68N/92.17W
Preston                      0.42 in   0700 AM 09/21   43.67N/92.07W
Harmony                      0.31 in   0700 AM 09/21   43.56N/92.01W
Spring Valley                0.26 in   0700 AM 09/21   43.69N/92.39W

...Houston County...
Mound Prairie                1.68 in   0900 AM 09/21   43.78N/91.45W
Hokah 4 NW                   0.94 in   0700 AM 09/21   43.80N/91.43W
1 ENE Mound Prairie          0.94 in   0700 AM 09/21   43.79N/91.42W
La Crescent 5.4 SW           0.92 in   0700 AM 09/21   43.78N/91.39W
La Crescent 1.0 WSW          0.89 in   0700 AM 09/21   43.83N/91.32W
Mound Prairie                0.83 in   0945 AM 09/21   43.78N/91.45W
Houston 6.9 E                0.78 in   0845 AM 09/21   43.76N/91.43W
Mabel 2.7 E                  0.41 in   0700 AM 09/21   43.51N/91.71W
Caledonia                    0.32 in   0700 AM 09/21   43.63N/91.50W

...Mower County...
Austin 1.9 ENE               0.60 in   0800 AM 09/21   43.68N/92.94W
Austin 2.4 W                 0.44 in   0700 AM 09/21   43.67N/93.02W
Austin 1.5 WSW               0.39 in   0700 AM 09/21   43.67N/93.00W
Ostrander 5.1 WNW            0.36 in   0700 AM 09/21   43.65N/92.52W
Waltham 2.0 SE               0.33 in   0800 AM 09/21   43.80N/92.85W
Dobbins Creek                0.11 in   0930 AM 09/21   43.68N/92.94W

...Olmsted County...
4 NNW Rochester              1.09 in   0650 AM 09/21   44.07N/92.49W
Rochester 4.2 N              1.09 in   0600 AM 09/21   44.08N/92.49W
Rochester 5.5 N              1.05 in   0930 AM 09/21   44.10N/92.47W
Rochester 4.7 N              0.99 in   0700 AM 09/21   44.08N/92.48W
Rochester 2.0 NNE            0.99 in   0700 AM 09/21   44.04N/92.47W
2 NNW Rochester              0.98 in   0600 AM 09/21   44.05N/92.49W
Rochester 5.7 N              0.98 in   0749 AM 09/21   44.10N/92.46W
Elgin 2SSW                   0.96 in   0700 AM 09/21   44.10N/92.27W
Rochester 4.7 ENE            0.87 in   0800 AM 09/21   44.04N/92.39W
2 NE Rochester               0.72 in   0600 AM 09/21   44.04N/92.44W
Rochester 1.5 WSW            0.70 in   0700 AM 09/21   44.00N/92.50W
3 W Rochester                0.68 in   0930 AM 09/21   44.02N/92.53W
Rochester 5.8 ENE            0.67 in   0700 AM 09/21   44.05N/92.37W
3 ENE Rochester              0.58 in   0930 AM 09/21   44.03N/92.43W
1 W Chester                  0.46 in   0626 AM 09/21   44.00N/92.38W
Rochester AP 2NE             0.44 in   0700 AM 09/21   43.93N/92.48W
2 W High Forest              0.40 in   0700 AM 09/21   43.85N/92.59W
Rochester International Airp 0.38 in   0954 AM 09/21   43.90N/92.50W
Stewartville 4.3 E           0.38 in   0430 AM 09/21   43.86N/92.40W
1 W Oronoco                  0.38 in   0930 AM 09/21   44.17N/92.55W
Mayo Helipad                 0.36 in   1015 AM 09/21   44.02N/92.48W

...Wabasha County...
Theilman 1 SSW               0.83 in   0730 AM 09/21   44.28N/92.19W
Plainview                    0.80 in   1016 AM 09/21   44.16N/92.17W
0.9 N Wabasha                0.58 in   0700 AM 09/21   44.38N/92.05W
Mazeppa (IFLOWS)             0.55 in   1111 PM 09/20   44.27N/92.55W
Lake City 0.9 E              0.51 in   0800 AM 09/21   44.44N/92.26W
Lake City                    0.42 in   0945 AM 09/21   44.44N/92.28W
Zumbro Falls 3.5 SSW         0.38 in   0700 AM 09/21   44.24N/92.46W

...Winona County...
Lewiston 0.2 NW              1.45 in   0700 AM 09/21   43.99N/91.87W
Beaver                       1.12 in   0900 AM 09/21   44.15N/92.00W
Winona 5.1 WSW               1.07 in   0700 AM 09/21   44.03N/91.77W
Stockton                     1.04 in   0609 AM 09/21   44.03N/91.77W
La Crescent Dam 7            1.00 in   0800 AM 09/21   43.87N/91.31W
Altura 5w                    0.90 in   0700 AM 09/21   44.06N/92.04W
4.2 N Rollingstone           0.84 in   0700 AM 09/21   44.16N/91.81W
1 WSW Elba                   0.74 in   0945 AM 09/21   44.09N/92.03W
Winona 2.0 ESE               0.73 in   0700 AM 09/21   44.04N/91.63W
Winona 1.9 ESE               0.72 in   0640 AM 09/21   44.04N/91.63W
Beaver                       0.60 in   0945 AM 09/21   44.15N/92.00W
Saint Charles                0.60 in   1014 AM 09/21   43.97N/92.06W
1 ESE Winona                 0.57 in   1010 AM 09/21   44.04N/91.63W
Winona 12.0 ESE              0.56 in   0700 AM 09/21   43.99N/91.44W

...Wisconsin...

...Adams County...
Oxford 4.3 W                 0.39 in   0800 AM 09/21   43.79N/89.65W
Oxford 4.0 W                 0.38 in   0700 AM 09/21   43.79N/89.64W
Grand Marsh 1.0 W            0.32 in   0700 AM 09/21   43.89N/89.73W
Nekoosa 8.0 SSE              0.31 in   0800 AM 09/21   44.21N/89.85W
0.6 W Friendship             0.28 in   0700 AM 09/21   43.98N/89.83W
Friendship 6.4 NNE           0.17 in   0700 AM 09/21   44.06N/89.79W
Friendship 6.4 N             0.14 in   0700 AM 09/21   44.06N/89.80W

...Buffalo County...
Alma Dam 4                   1.25 in   0800 AM 09/21   44.33N/91.92W
Mondovi 12.1 SSE             0.56 in   0622 AM 09/21   44.40N/91.60W

...Clark County...
Owen 1E                      0.07 in   0700 AM 09/21   44.95N/90.55W

...Crawford County...
Gays Mills 1.0 NE            0.92 in   0700 AM 09/21   43.33N/90.84W
Eastman 2.4 NNE              0.87 in   0600 AM 09/21   43.20N/91.00W
Steuben 4SE                  0.79 in   0640 AM 09/21   43.13N/90.84W
Steuben                      0.66 in   0945 AM 09/21   43.18N/90.86W
Prairie Du Chien 1.4 N       0.55 in   0700 AM 09/21   43.06N/91.14W
0.6 NE Prairie Du Chien      0.54 in   0700 AM 09/21   43.05N/91.13W
Prairie Du Chien  Airport    0.41 in   1015 AM 09/21   43.02N/91.12W

...Grant County...
Platteville Municipal Airpor 1.34 in   0955 AM 09/21   42.68N/90.43W
Bloomington 3.5 N            1.15 in   0636 AM 09/21   42.94N/90.92W
Patch Grove 0.1 NNW          1.12 in   0700 AM 09/21   42.94N/90.97W
Cassville 7.8 ENE            1.07 in   0700 AM 09/21   42.75N/90.84W
4.3 W Lancaster              1.03 in   0800 AM 09/21   42.83N/90.79W
Lancaster                    0.96 in   0941 AM 09/21   42.83N/90.69W
Muscoda 0.5 WSW              0.82 in   0835 AM 09/21   43.18N/90.44W
Boscobel                     0.56 in   1003 AM 09/21   43.15N/90.68W
Boscobel Airport             0.24 in   1008 AM 09/21   43.15N/90.68W

...Jackson County...
Black River Falls 1.7 NNE    1.16 in   0700 AM 09/21   44.32N/90.83W
Melrose 3.6 W                0.92 in   0700 AM 09/21   44.13N/91.07W
Black River Falls Area Airpo 0.48 in   1015 AM 09/21   44.25N/90.85W
1 E Black River Falls        0.42 in   0915 AM 09/21   44.30N/90.73W

...Juneau County...
NECEDAH NWR RY DAM NECEDAH 5 0.59 in   1010 AM 09/21   44.06N/90.17W
New Lisbon                   0.51 in   1002 AM 09/21   43.87N/90.17W
3 ESE Lemonweir              0.42 in   0530 AM 09/21   43.77N/89.96W
Volk Field                   0.32 in   0856 AM 09/21   43.92N/90.27W
1.0 E Mauston                0.30 in   0800 AM 09/21   43.79N/90.06W
Necedah 5.0 ESE              0.30 in   0700 AM 09/21   43.99N/89.99W
New Lisbon 5.2 ENE           0.27 in   0700 AM 09/21   43.91N/90.07W
Necedah                      0.23 in   0948 AM 09/21   44.03N/90.08W

...La Crosse County...
Onalaska 2N                  0.93 in   0700 AM 09/21   43.91N/91.23W
West Salem 0.7 W             0.78 in   0700 AM 09/21   43.90N/91.10W
La Crosse 4NNW               0.77 in   0730 AM 09/21   43.87N/91.27W
La Crosse Regional Airport   0.71 in   0953 AM 09/21   43.88N/91.25W
Coon Valley 4.5 NNW          0.71 in   0600 AM 09/21   43.76N/91.06W
La Crosse                    0.64 in   1008 AM 09/21   43.82N/91.19W
Coon Valley 4.5 NNW          0.57 in   0700 AM 09/21   43.76N/91.06W
La Crosse 4.4 SSE            0.40 in   0700 AM 09/21   43.77N/91.21W

...Monroe County...
Sparta/Fort McCoy Airport    1.07 in   0858 AM 09/21   43.97N/90.73W
Warrens 4.7 WSW              1.00 in   0700 AM 09/21   44.10N/90.59W
0.5 SW Sparta                0.78 in   0800 AM 09/21   43.94N/90.82W
Cashton 3 NNW                0.53 in   0749 AM 09/21   43.79N/90.80W
Wilton 4.2 E                 0.43 in   0700 AM 09/21   43.81N/90.44W

...Richland County...
1 SSE Richland Center        0.62 in   1015 AM 09/21   43.32N/90.38W
Richland Center 4 N          0.59 in   0700 AM 09/21   43.40N/90.39W

...Taylor County...
3 NE Lublin                  0.14 in   0914 AM 09/21   45.11N/90.69W
0.6 SE Medford               0.06 in   0700 AM 09/21   45.13N/90.34W
Medford Airport              0.05 in   1015 AM 09/21   45.10N/90.30W
Medford 0.8 ENE              0.05 in   0700 AM 09/21   45.14N/90.33W

...Trempealeau County...
Galesville 4.7 E             0.78 in   0815 AM 09/21   44.08N/91.26W
Galesville 1.0 NE            0.73 in   0600 AM 09/21   44.10N/91.34W
1 NW Trempealeau             0.70 in   0600 AM 09/21   44.03N/91.46W
Trempealeau 7.6 NNW          0.68 in   0700 AM 09/21   44.11N/91.48W
Ettrick 4.0 WNW              0.68 in   0720 AM 09/21   44.19N/91.34W
Trempealeau Dam 6            0.55 in   0800 AM 09/21   44.00N/91.44W

...Vernon County...
Coon Valley 0.1 WSW          1.09 in   0800 AM 09/21   43.70N/91.01W
0.5 E Viroqua                0.93 in   0700 AM 09/21   43.56N/90.88W
Genoa Dam 8                  0.85 in   0600 AM 09/21   43.57N/91.23W
Viroqua 0.8 ESE              0.85 in   0700 AM 09/21   43.55N/90.87W
Viroqua Municipal Airport    0.72 in   1015 AM 09/21   43.58N/90.90W
Stoddard 4.7 NNE             0.53 in   0700 AM 09/21   43.72N/91.17W
Hillsboro 0.5 WSW            0.49 in   0700 AM 09/21   43.65N/90.35W
Hillsboro 2 SW               0.47 in   0700 AM 09/21   43.63N/90.38W

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.

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