An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through this evening. A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the Carolina Shorelines through tonight. This system is forecast to meander off the mid-Atlantic coast early this week. Read More >
Overview
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Scattered strong to severe thunderstorms developed along and ahead of a cold front during the evening of August 11. These storms initially produced large hail when they were northeast of the area. Strong thunderstorm wind gusts of 40 to around 70 mph produced scattered reports of wind damage across southeast Minnesota, northeast Iowa, and from southwest into central Wisconsin. The highest wind gusts were 71 mph at Kellogg, MN, and 68 mph at La Crosse Regional Airport. |
 Radar loop from 3 PM through midnight - August 11, 2023 |
Photos & Video:
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| Damaged Grain Bin Claremont, MN (Dave Purscell) |
Tree Damage Westby, WI (NWS La Crosse) |
Wall cloud north of Grand Meadow, MN (Timothy Shorter) |
Damaged Grain Bin north of Hayfield, MN (Jake Siemers) |
Radar:
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| Radar reflectivity and velocity over Buffalo County around 7 pm August 11 | Radar velocity of storm nearing La Crosse at 7:55 PM August 11 | Caption | Caption |
Storm Reports
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0630 PM Tstm Wnd Gst 1 W Lake City 44.44N 92.28W
08/11/2023 M48 MPH Wabasha MN Mesonet
Mesonet station DW8097 Lake City.
0633 PM Tstm Wnd Gst Longwood 44.89N 90.60W
08/11/2023 M60 MPH Clark WI Trained Spotter
0647 PM Hail Nelson 44.42N 92.00W
08/11/2023 E0.88 inch Buffalo WI Trained Spotter
pea to nickel sized.
0647 PM Tstm Wnd Gst Loyal 44.74N 90.50W
08/11/2023 E70 MPH Clark WI Public
0648 PM Tstm Wnd Dmg 3 NE Kellogg 44.34N 91.96W
08/11/2023 Wabasha MN Public
Several tree limbs down near the Mississippi
River.
0653 PM Hail 1 N Loyal 44.75N 90.50W
08/11/2023 E1.00 inch Clark WI Public
0657 PM Funnel Cloud 4 SSE Dodge Center 43.97N 92.82W
08/11/2023 Dodge MN Public
0658 PM Tstm Wnd Dmg Claremont 44.04N 93.00W
08/11/2023 Dodge MN Broadcast Media
Grain elevator/bin sustained considerable damage
from strong winds.
0705 PM Tstm Wnd Dmg 3 WNW Dodge Center 44.05N 92.91W
08/11/2023 Dodge MN Public
Social media picture of large tree limb down
between Claremont and Dodge Center.
0705 PM Tstm Wnd Gst 7 SW Lake City 44.38N 92.37W
08/11/2023 M45 MPH Wabasha MN Mesonet
Mesonet station MN143 US 63 - Lake City - MP 62.9.
0708 PM Tstm Wnd Dmg Hayfield 43.89N 92.85W
08/11/2023 Dodge MN Public
Grain bin flattened - time estimated by radar.
0715 PM Hail High Forest 43.84N 92.55W
08/11/2023 E1.00 inch Olmsted MN Trained Spotter
0715 PM Tstm Wnd Dmg 3 NNW Buffalo 44.27N 91.87W
08/11/2023 Buffalo WI Public
Buffalo County Sheriffs Office reported a
porta potty blown across State Rd. Time
estimated via radar.
0715 PM Tstm Wnd Gst 2 ESE Dodge Center 44.02N 92.82W
08/11/2023 M51 MPH Dodge MN AWOS
AWOS station KTOB Dodge Center Airport.
0718 PM Tstm Wnd Dmg 6 E Black River Falls 44.29N 90.73W
08/11/2023 Jackson WI Public
Jackson County Sheriffs office passed along
trees down near Wazee Lake. Time estimated
via radar.
0726 PM Funnel Cloud 3 W Arcadia 44.25N 91.55W
08/11/2023 Buffalo WI Public
Pulsing up, down.
0728 PM Hail 2 W High Forest 43.84N 92.60W
08/11/2023 M0.50 inch Olmsted MN Public
Report from mPING: Half-inch (0.50 in.).
0732 PM Tstm Wnd Gst Winona 44.05N 91.66W
08/11/2023 M51 MPH Winona MN Emergency Mngr
0733 PM Tstm Wnd Dmg 1 SE Goodview 44.05N 91.69W
08/11/2023 Winona MN Emergency Mngr
Tree down on highway 14.
0740 PM Tstm Wnd Dmg 3 NE Trempealeau 44.04N 91.40W
08/11/2023 Trempealeau WI Law Enforcement
Trempealeau Sheriffs Office reported trees down
on County Road K. Time estimated via radar.
0741 PM Tstm Wnd Dmg Galesville 44.08N 91.36W
08/11/2023 Trempealeau WI Public
Large tree blown down.
0755 PM Tstm Wnd Dmg 3 NNE Tomah 44.03N 90.48W
08/11/2023 Monroe WI Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken.
0756 PM Tstm Wnd Gst Onalaska 43.89N 91.23W
08/11/2023 E60 MPH La Crosse WI Public
0800 PM Tstm Wnd Gst 3 WNW Spring Valley 43.70N 92.44W
08/11/2023 E70 MPH Fillmore MN Trained Spotter
delayed report, wind gusts of 65 to 70mph.
0801 PM Tstm Wnd Dmg 1 S La Crosse 43.81N 91.23W
08/11/2023 La Crosse WI Public
La Crosse County Sheriffs Office reported 8
trees down within the city of La Crosse.
Time estimated via radar.
0801 PM Tstm Wnd Gst 2 NNE French Island 43.88N 91.25W
08/11/2023 M68 MPH La Crosse WI ASOS
ASOS station KLSE La Crosse Regional Airport.
0804 PM Tstm Wnd Dmg 3 S Barre Mills 43.80N 91.11W
08/11/2023 La Crosse WI Public
La Crosse County Sheriffs Office reported
tree(s) down on County Road OA. Time
estimated via radar.
0805 PM Tstm Wnd Dmg 2 SW Waumandee 44.28N 91.74W
08/11/2023 Buffalo WI Public
Buffalo Cty Sheriffs Office passed along
power line down.
0805 PM Tstm Wnd Dmg 1 SSE Onalaska 43.88N 91.21W
08/11/2023 La Crosse WI Public
Report from mPING: 1-inch tree limbs broken;
Shingles blown off.
0823 PM Tstm Wnd Dmg 1 NNW Westby 43.66N 90.86W
08/11/2023 Vernon WI NWS Storm Survey
Most damage 60 to 70 mph with isolated peaks
to 80 mph with larger snapped maple trees.
Time estimated via radar.
0824 PM Tstm Wnd Dmg Westby 43.66N 90.85W
08/11/2023 Vernon WI Public
Multiple reports of many power lines down
and loss of power. Time estimated via radar.
0908 PM Tstm Wnd Dmg 4 NW Ithaca 43.39N 90.33W
08/11/2023 Richland WI Public
Richland County Sheriffs Office reported
tree down blocking the road. Time estimated
via radar.
0940 PM Tstm Wnd Gst 3 SSE Blue River 43.16N 90.54W
08/11/2023 M50 MPH Grant WI Public
1036 PM Tstm Wnd Gst 3 ENE Bridgeport 43.03N 91.01W
08/11/2023 M55 MPH Crawford WI Public
Rainfall/Wind Gusts
Rain Reports:
There were 2 systems that brought rainfall to the region on August 11. The first fell during the overnight and early morning and a second fell during the evening. Here are the rainfall totals for the day.
...PRECIPITATION REPORTS... Location Amount Time/Date Lat/Lon ...Iowa... ...Allamakee County... 3 S Dorchester 0.01 in 0100 AM 08/12 43.42N/91.51W ...Chickasaw County... Ionia 2W 1.25 in 0145 AM 08/12 43.03N/92.50W New Hampton 0.70 in 0207 AM 08/12 43.05N/92.30W ...Clayton County... Littleport 0.32 in 0145 AM 08/12 42.75N/91.37W Mcgregor 0.29 in 0209 AM 08/12 43.02N/91.19W Monona 0.25 in 0209 AM 08/12 43.04N/91.39W 1 WSW Marquette 0.13 in 0200 AM 08/12 43.04N/91.21W ...Fayette County... Eldorado 1E - Turkey River 0.64 in 0145 AM 08/12 43.05N/91.81W ...Floyd County... Charles City 0.97 in 0207 AM 08/12 43.05N/92.67W 2 NE Dougherty 0.89 in 0205 AM 08/12 42.95N/93.01W Charles City 0.61 in 0130 AM 08/12 43.06N/92.67W ...Howard County... Saratoga 0.74 in 0200 AM 08/12 43.35N/92.42W Riceville 0.61 in 0200 AM 08/12 43.36N/92.48W ...Mitchell County... St.Ansgar 1.54 in 0200 AM 08/12 43.38N/92.92W Stacyville 0.60 in 0207 AM 08/12 43.44N/92.78W ...Winneshiek County... 1 ENE Jackson Junction 0.92 in 0209 AM 08/12 43.11N/92.04W Spillville 0.65 in 1000 PM 08/11 43.21N/91.95W Spillville 0.59 in 0130 AM 08/12 43.21N/91.95W Decorah 0.34 in 0209 AM 08/12 43.30N/91.79W Decorah 0.26 in 0700 PM 08/11 43.30N/91.80W Decorah 0.06 in 0145 AM 08/12 43.30N/91.80W ...Minnesota... ...Dodge County... Hayfield 0.70 in 0207 AM 08/12 43.89N/92.85W Dodge Center 0.5 W 0.32 in 0600 PM 08/11 44.03N/92.86W Wasioja 0.08 in 0604 PM 08/11 44.07N/92.82W Hayfield 0.3 SSE 0.06 in 0130 AM 08/12 43.89N/92.85W ...Fillmore County... Lanesboro 0.70 in 0130 AM 08/12 43.72N/91.98W 1 NNW Fillmore 0.22 in 0130 AM 08/12 43.76N/92.27W Preston Airport 0.04 in 0155 AM 08/12 43.68N/92.17W ...Houston County... Mound Prairie 0.79 in 0100 AM 08/12 43.78N/91.45W Mound Prairie 0.58 in 1245 AM 08/12 43.78N/91.45W Hokah 0.51 in 0205 AM 08/12 43.80N/91.43W Houston 0.35 in 0209 AM 08/12 43.77N/91.58W ...Mower County... Lansing - Cedar River 0.63 in 0100 AM 08/12 43.75N/92.96W Dobbins Creek 0.50 in 0130 AM 08/12 43.68N/92.94W Lansing - Cedar River 0.48 in 0130 AM 08/12 43.75N/92.96W Austin 0.06 in 0209 AM 08/12 43.65N/93.00W ...Olmsted County... Rochester 1.15 in 0209 AM 08/12 44.04N/92.44W 3 W Rochester 0.85 in 0130 AM 08/12 44.02N/92.53W Byron 0.81 in 0200 AM 08/12 44.04N/92.64W Rochester International Airp 0.68 in 0154 AM 08/12 43.90N/92.50W 3 ENE Rochester 0.65 in 0130 AM 08/12 44.03N/92.43W Rochester 0.61 in 0200 AM 08/12 44.18N/92.41W Rochester-Cascade Creek 0.60 in 0130 AM 08/12 44.03N/92.47W 6 NNW Genoa 0.59 in 0100 AM 08/12 44.19N/92.65W Rochester 0.44 in 0210 AM 08/12 44.09N/92.51W Rochester 0.42 in 0210 AM 08/12 44.05N/92.45W Rochester 0.40 in 0205 AM 08/12 44.09N/92.49W Rochester 0.35 in 0210 AM 08/12 44.05N/92.53W Mayo Helipad 0.29 in 0155 AM 08/12 44.02N/92.48W Eyota 2NE 0.29 in 0130 AM 08/12 44.02N/92.20W Elba 4.7 SW 0.27 in 0800 PM 08/11 44.04N/92.09W 5 WSW Rochester 0.27 in 0100 AM 08/12 43.98N/92.56W 1 W Oronoco 0.11 in 0130 AM 08/12 44.17N/92.55W Rochester-Beltline Bear Cree 0.06 in 0130 AM 08/12 44.01N/92.45W ...Wabasha County... Lake City 1.12 in 0200 AM 08/12 44.44N/92.28W Mazeppa (IFLOWS) 0.27 in 0621 PM 08/11 44.27N/92.55W Lake City 0.17 in 0202 AM 08/12 44.32N/92.44W 1 N Kellogg 0.14 in 0100 AM 08/12 44.32N/92.00W 3 ESE Mazeppa 0.03 in 0130 AM 08/12 44.26N/92.49W ...Winona County... La Crescent 4.0 NNW 1.17 in 0205 AM 08/12 43.88N/91.34W Dakota 1.07 in 0115 AM 08/12 43.91N/91.36W Beaver 0.45 in 0100 AM 08/12 44.15N/92.00W Beaver 0.45 in 1245 AM 08/12 44.15N/92.00W Plainview 0.37 in 0209 AM 08/12 44.05N/91.65W 1 ESE Winona 0.36 in 0205 AM 08/12 44.04N/91.63W 1 WSW Elba 0.33 in 0145 AM 08/12 44.09N/92.03W 3 SW Elba 0.22 in 0130 AM 08/12 44.06N/92.05W 3 NE Nodine 0.10 in 0130 AM 08/12 43.94N/91.41W Whitewater State Park 0.10 in 0130 AM 08/12 44.05N/92.05W ...Wisconsin... ...Buffalo County... Dodge 0.03 in 0145 AM 08/12 44.13N/91.55W ...Clark County... Colby 5.9 WSW 0.82 in 0700 PM 08/11 44.87N/90.42W ...Crawford County... De Soto 0.45 in 0206 AM 08/12 43.42N/91.19W Steuben 0.40 in 0145 AM 08/12 43.18N/90.86W Prairie Du Chien Airport 0.23 in 0215 AM 08/12 43.02N/91.12W ...Grant County... Muscoda 0.70 in 0205 AM 08/12 43.19N/90.46W Platteville 0.62 in 0210 AM 08/12 42.74N/90.46W Boscobel 0.28 in 0103 AM 08/12 43.15N/90.68W Fennimore 0.27 in 0209 AM 08/12 42.98N/90.66W Lancaster 0.20 in 1241 AM 08/12 42.83N/90.69W Platteville Municipal Airpor 0.09 in 0155 AM 08/12 42.68N/90.43W Boscobel Airport T in 0201 AM 08/12 43.15N/90.68W ...Jackson County... 1 E Black River Falls 0.37 in 0115 AM 08/12 44.30N/90.73W Black River Falls Area Airpo 0.01 in 0155 AM 08/12 44.25N/90.85W ...Juneau County... New Lisbon 0.39 in 0201 AM 08/12 43.87N/90.17W NECEDAH NWR RY DAM NECEDAH 5 0.38 in 0110 AM 08/12 44.06N/90.17W Volk Field 0.30 in 0155 AM 08/12 43.93N/90.27W Mauston Airport 0.25 in 0155 AM 08/12 43.83N/90.13W NECEDAH NWR RY DAM NECEDAH 5 0.17 in 0800 PM 08/11 44.06N/90.17W Necedah 0.13 in 1248 AM 08/12 44.03N/90.08W ...La Crosse County... La Crosse 1.05 in 0208 AM 08/12 43.81N/91.25W La Crosse Regional Airport 1.04 in 1253 AM 08/12 43.88N/91.25W Onalaska 1.01 in 0206 AM 08/12 43.89N/91.18W Burns 0.70 in 0208 AM 08/12 43.91N/90.97W La Crosse 0.42 in 0700 PM 08/11 43.77N/91.22W ...Richland County... 1 SSE Richland Center 0.89 in 0209 AM 08/12 43.32N/90.38W ...Taylor County... Medford 0.73 in 0200 AM 08/12 45.30N/90.30W 3 NE Lublin 0.34 in 0114 AM 08/12 45.11N/90.69W Westboro 0.30 in 0205 AM 08/12 45.37N/90.31W Medford Airport 0.28 in 0215 AM 08/12 45.10N/90.30W 0.6 SE Medford 0.01 in 0200 AM 08/12 45.13N/90.34W ...Trempealeau County... Blair (IFLOWS) 0.59 in 0757 PM 08/11 44.30N/91.23W 0.8 SW Pigeon Falls (IFLOWS) 0.55 in 0910 PM 08/11 44.42N/91.22W Trempealeau 0.44 in 0207 AM 08/12 44.07N/91.51W Whitehall (IFLOWS) 0.44 in 0841 PM 08/11 44.37N/91.32W ...Vernon County... La Farge 1.04 in 0200 AM 08/12 43.60N/90.63W Readstown 0.59 in 0200 AM 08/12 43.45N/90.77W Genoa 0.47 in 0159 AM 08/12 43.56N/91.22W Viroqua Municipal Airport 0.37 in 0215 AM 08/12 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. $$ Wind Reports: ...HIGHEST WIND REPORTS FOR AUGUST 11... Location Speed Time/Date Lat/Lon ...Iowa... ...Chickasaw County... New Hampton 32 MPH 0925 PM 08/11 43.07N/92.46W ...Fayette County... Hawkeye 37 MPH 0315 AM 08/11 42.96N/91.95W Oelwein Municipal Airport 35 MPH 0315 AM 08/11 42.68N/91.97W ...Floyd County... Charles City Airport 36 MPH 0235 AM 08/11 43.07N/92.62W ...Howard County... Saratoga 38 MPH 0855 PM 08/11 43.37N/92.47W Saratoga 27 MPH 0900 PM 08/11 43.35N/92.42W Riceville 26 MPH 0215 AM 08/11 43.36N/92.48W ...Winneshiek County... Decorah 32 MPH 0325 AM 08/11 43.25N/91.70W ...Minnesota... ...Dodge County... Dodge Center Airport 51 MPH 0715 PM 08/11 44.02N/92.82W U.s.14 - Byron - Mp 200 39 MPH 0715 PM 08/11 44.02N/92.71W ...Fillmore County... U.s.63 - Le Roy - Mp 0.5 40 MPH 0235 AM 08/11 43.51N/92.37W T.h.52 - Canton - Mp 2 32 MPH 0300 AM 08/11 43.52N/91.89W Preston Airport 30 MPH 0235 AM 08/11 43.68N/92.17W ...Houston County... T.h.44 - Hokah - Mp 60 26 MPH 0815 PM 08/11 43.72N/91.44W ...Mower County... I-90 - Dexter - Mp 195 26 MPH 0740 PM 08/11 43.73N/92.68W Austin Municipal Airport 25 MPH 0855 PM 08/11 43.67N/92.92W ...Olmsted County... U.s.63 - Stewartville - Mp 3 50 MPH 0735 PM 08/11 43.90N/92.48W Rochester International Airp 46 MPH 0729 PM 08/11 43.90N/92.50W Mayo Helipad 32 MPH 0735 PM 08/11 44.02N/92.48W Byron 28 MPH 0715 PM 08/11 44.04N/92.64W Rochester 26 MPH 0730 PM 08/11 44.09N/92.51W I-90 - Eyota - Mp 226 25 MPH 0745 PM 08/11 43.96N/92.21W ...Wabasha County... U.s.61 - Kellogg - Mp 53 71 MPH 0720 PM 08/11 44.28N/91.99W Lake City 48 MPH 0630 PM 08/11 44.44N/92.28W U.s.63 - Lake City - Mp 62.9 45 MPH 0705 PM 08/11 44.38N/92.37W Lake City 38 MPH 0652 PM 08/11 44.32N/92.44W ...Winona County... I-90 - La Crescent - Mp 276. 54 MPH 0815 PM 08/11 43.86N/91.30W I-90 - Ridgeway - Mp 261 49 MPH 0750 PM 08/11 43.91N/91.54W Winona Municipal Airport 33 MPH 0735 PM 08/11 44.07N/91.70W U.s.61 - Winona 29 MPH 0800 PM 08/11 43.98N/91.43W ...Wisconsin... ...Crawford County... Prairie Du Chien Airport 38 MPH 1035 PM 08/11 43.02N/91.12W ...Grant County... Boscobel Airport 35 MPH 0935 PM 08/11 43.15N/90.68W Lancaster 31 MPH 1141 PM 08/11 42.83N/90.69W Boscobel 26 MPH 1003 PM 08/11 43.15N/90.68W ...Jackson County... 1 E Black River Falls 38 MPH 0815 PM 08/11 44.30N/90.73W ...Juneau County... Necedah 43 MPH 0848 PM 08/11 44.03N/90.08W Volk Field 40 MPH 0803 PM 08/11 43.93N/90.27W Mauston Airport 31 MPH 0815 PM 08/11 43.83N/90.13W New Lisbon 27 MPH 0815 PM 08/11 43.87N/90.17W ...La Crosse County... La Crosse Regional Airport 68 MPH 0757 PM 08/11 43.88N/91.25W I-90 Eb At Ush 53 Nb 65 MPH 0809 PM 08/11 43.86N/91.24W Onalaska 41 MPH 0806 PM 08/11 43.89N/91.18W La Crosse 31 MPH 0818 PM 08/11 43.81N/91.25W ...Monroe County... Sparta/Fort McCoy Airport 30 MPH 0755 PM 08/11 43.97N/90.73W ...Taylor County... Medford Airport 39 MPH 0655 PM 08/11 45.10N/90.30W ...Vernon County... La Farge 30 MPH 0845 PM 08/11 43.60N/90.63W 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. $$
Additional
Services
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| Weather Story graphic issued August 11 | Graphic highlighting developing storms during the evening of August 11 | Severe thunderstorm watch issued on August 11, 2023 | SPC Day 1 convective outlook issued August 11, 2023 |
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