Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >
Overview
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An active weather pattern brought large hail, damaging wind, flooding, and at least one brief tornado to the region on September 6th and 7th. On Tuesday September 6th, scattered strong to severe thunderstorms impacted parts of western Wisconsin and northeast Iowa. They dropped large hail (up to 2") in the Black River Falls, WI area and produced wind damage as they tracked east. Another set of storms produced at least one small tornado near the Iowa-Minnesota state line, not too far from Cresco, IA. Later that evening, and well into the morning hours of Wednesday September 7th, numerous additional thunderstorms formed and began tracking near the Minnesota-Iowa state line and into southwest Wisconsin (see radar loop to the right). Rainfall of 4-7 inches fell and led to river and flash flooding. |
 Radar loop from overnight Sept.6-7 |
Tornado:
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Cresco 6WNW
Track Map  
Downloadable KMZ File |
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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 |
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Flooding
Hydrographs
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| Upper Iowa River at Decorah, IA | Upper Iowa River at Dorchester, IA | Kickapoo River at Viola, WI | Kickapoo River at Readstown, WI |
Photos:
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| Rock slide 1.5 miles north of Brownsville, MN (Photo used by permission of Houston County Emergency Management) |
Hail in Black River Falls, WI (Photo used by permission from Black River Falls Fire Dept.) |
Wind damage near Taylor, WI (Photo used by permission of Jackson County Emergency Management) |
Wind damage near Taylor, WI (Photo used by permission of Jackson County Emergency Management) |
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| Wind damage just south of Taylor, WI (Photo used by permission of Jackson County Emergency Management) |
Wind damage near Taylor, WI (Photo used by permission of Jackson County Emergency Management) |
Wind damage near Taylor, WI (Photo used by permission of Jackson County Emergency Management) |
Possible tornado track near Cresco, IA (Photo used by permission from Jeff Ryan) |
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| Flooding near Rockbridge, WI (Photo used by permission of Richland County Emergency Management) |
Flooding near Bloom City, WI (Photo used by permission of Richland County Emergency Management) |
Flooding near Bloom City, WI (Photo used by permission of Richland County Emergency Management) |
Flooding near Bloom City, WI (Photo used by permission of Richland County Emergency Management) |
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| Flooding damage in Hentrietta Township (Richland Co., WI) (Photo used by permission of Richland County Emergency Management) |
Flooding along Highway 80 and County Road C (Richland Co., WI) (Photo used by permission of Richland County Emergency Management) |
Flooding in Yuba, WI (Photo used by permission of Richland County Emergency Management) |
Flooding in Yuba, WI (Photo used by permission from Jessica Kreuzer) |
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| Flooding along Elk Creek (Photo used by permission from Kelly Schwarz) |
Funnel cloud near Kasson, MN (Sept.7th) (Photo used by permission from Tanner Schaaf) |
Funnel cloud near Kasson, MN (Sept.7th) (Photo used by permission from Tanner Schaaf) |
Radar:
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| Reflectivity & Storm-Relative velocity imagery of tornadic thunderstorm | Rainfall estimates from radar |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
107 PM CDT WED SEP 7 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0328 PM HAIL 4 SSW PIGEON FALLS 44.37N 91.23W
09/06/2016 E1.00 INCH TREMPEALEAU WI 911 CALL CENTER
0330 PM HAIL 1 WSW BLAIR 44.29N 91.24W
09/06/2016 E1.00 INCH TREMPEALEAU WI LAW ENFORCEMENT
.
0405 PM HAIL BLACK RIVER FALLS 44.30N 90.85W
09/06/2016 M1.00 INCH JACKSON WI FIRE DEPT/RESCUE
STRONG WINDS ALSO REPORTED BY FIRE CHIEF.
0417 PM TSTM WND DMG BLACK RIVER FALLS 44.30N 90.85W
09/06/2016 JACKSON WI AMATEUR RADIO
TREES DOWN IN TOWN AND STREET FLOODING
REPORTED.
0444 PM TSTM WND DMG 3 N MATHER 44.18N 90.30W
09/06/2016 JUNEAU WI CO-OP OBSERVER
LARGE BRANCHES DOWN.
0531 PM HAIL BIG FLATS 44.11N 89.81W
09/06/2016 E1.00 INCH ADAMS WI TRAINED SPOTTER
.
0533 PM HAIL ADAMS 43.96N 89.82W
09/06/2016 M1.00 INCH ADAMS WI TRAINED SPOTTER
0607 PM TSTM WND DMG 2 SSW KENDALLVILLE 43.41N 92.06W
09/06/2016 WINNESHIEK IA LAW ENFORCEMENT
TREES DOWN OVER HIGHWAY 139 ABOUT 2 MILES
NORTHEAST OF CRESCO HIGHWAY INTERCHANGE NEAR
COUNTY LINE.
0455 AM FLASH FLOOD YUBA 43.54N 90.43W
09/07/2016 RICHLAND WI LAW ENFORCEMENT
SANDBAGGING NEAR THE PINE RIVER.
0455 AM FLASH FLOOD VIOLA 43.51N 90.67W
09/07/2016 RICHLAND WI LAW ENFORCEMENT
WATER OVER PORTIONS OF HIGHWAY 56 NEAR
VIOLA...WEST OF COUNTY A.
0455 AM FLASH FLOOD RICHLAND CENTER 43.34N 90.38W
09/07/2016 RICHLAND WI LAW ENFORCEMENT
WATER ON STATE HIGHWAY 56 NEAR COUNTRY
HIGHWAY A.
0455 AM FLASH FLOOD VIROQUA 43.56N 90.89W
09/07/2016 VERNON WI LAW ENFORCEMENT
EVACUATIONS AT SIDIE HOLLOW CAMPGROUND.
STREET FLOODING IN VIROQUA.
0655 AM FLASH FLOOD SPRING GROVE 43.56N 91.64W
09/07/2016 HOUSTON MN LAW ENFORCEMENT
NUMEROUS ROADS WITH WATER ACROSS
THEM...MOSTLY SOUTH OF SPRING GROVE. SOME
ROAD CLOSURES.
0655 AM FLASH FLOOD MABEL 43.52N 91.77W
09/07/2016 FILLMORE MN LAW ENFORCEMENT
STEAM ENGINE PARK FLOODED.
0828 AM FLASH FLOOD 2 N BROWNSVILLE 43.73N 91.28W
09/07/2016 HOUSTON MN EMERGENCY MNGR
MUD SLIDE WITH SIGNIFICANT DAMAGE. BOULDERS
THROUGH A NEWER HOME.
0939 AM FLOOD 2 SSW LA FARGE 43.55N 90.65W
09/07/2016 RICHLAND WI LAW ENFORCEMENT
WATER STILL OVER ROADWAY BETWEEN VIOLA AND
LA FARGE.
1239 PM FLOOD YUBA 43.54N 90.43W
09/07/2016 RICHLAND WI EMERGENCY MNGR
HIGHWAY 80 NORTH OF RICHLAND CENTER CLOSED
DUE TO HIGH WATER. MANY NEARBY COUNTY ROADS
ALSO CLOSED. PUMPING OUT BASEMENTS OF 3
HOMES IN YUBA AND COUNTY ROAD C IS
IMPASSABLE. HIGHWAY 56 TOWARDS VIOLA IS OPEN
BUT DAMAGED.
&&
Rain Reports
Public Information Statement National Weather Service La Crosse WI 129 PM CDT Wed Sep 7 2016 ...Rainfall Reports from September 6-7... Location Amount Time/Date ...Iowa... ...Allamakee County... Dorchester 3S 4.45 in 1200 PM 09/07 Waukon 3NE 4.00 in Waukon 5E 3.00 in Watson 4ENE 1.82 in 1245 PM 09/07 Waterville 3SE 1.69 in 1207 PM 09/07 ...Chickasaw County... New Hampton 1.20 in 0800 AM 09/07 Ionia 2W 0.95 in 1245 PM 09/07 ...Clayton County... Marquette 1.92 in 0800 AM 09/07 Monona WWTP 0.67 in 0700 AM 09/07 Elkader Turkey River 0.64 in 1245 PM 09/07 Marquette-Bloody Run Creek 0.51 in 1200 PM 09/07 Littleport 0.49 in 1245 PM 09/07 ...Fayette County... Waucoma 1.56 in 0658 AM 09/07 Alpha 1ENE 1.33 in 0720 AM 09/07 Fayette 0.78 in 0700 AM 09/07 Oelwein Municipal Airport 0.23 in 0655 AM 09/07 ...Floyd County... Nora Springs 2.4 SSE 2.18 in 0700 AM 09/07 Charles City Airport 1.51 in 0655 AM 09/07 Colwell 0.99 in 0700 AM 09/07 Charles City-Cedar River 0.97 in 1230 PM 09/07 Charles City 0.84 in 0700 AM 09/07 Nashua 2sw 0.63 in 0700 AM 09/07 ...Howard County... Cresco 1NE 3.09 in 0700 AM 09/07 Elma 2.50 in 0700 AM 09/07 3 NE Riceville 2.40 in 1252 PM 09/07 ...Mitchell County... Osage 2.50 in 0700 AM 09/07 St Ansgar 1.68 in 0630 AM 09/07 ...Winneshiek County... Bluffton 5.52 in 1245 PM 09/07 Decorah 5N 4.60 in 0852 AM 09/07 Bluffton 4.24 in 0345 AM 09/07 Decorah 6ESE 2.98 in 0700 AM 09/07 Decorah 7ENE 2.96 in 0700 AM 09/07 Decorah 2.65 in 0700 AM 09/07 Decorah 5ESE 2.54 in 0700 AM 09/07 Decorah Municipal Airport 1.75 in 0655 AM 09/07 Fort Atkinson 1.69 in 0700 AM 09/07 Calmar 1NW 1.55 in 0700 AM 09/07 ...Minnesota... ...Dodge County... Claremont 2E 0.68 in 0800 AM 09/07 Kasson 2NE 0.64 in 0700 AM 09/07 Claremont 2.5 SSE 0.60 in 0700 AM 09/07 Dodge Center Airport 0.60 in 0653 AM 09/07 ...Fillmore County... Mabel 4.61 in 0640 AM 09/07 Preston 6s 3.74 in 1030 AM 09/07 Spring Valley 3.35 in 0700 AM 09/07 Fillmore 3.35 in 0800 AM 09/07 Preston 6s 3.06 in 0230 AM 09/07 Harmony 2.95 in 0730 AM 09/07 1 SSE Pilot Mound 2.63 in 0645 AM 09/07 Lanesboro 2NE 2.60 in 0700 AM 09/07 Spring Valley 3E 2.50 in 0700 AM 09/07 1 W Fillmore 2.46 in 0700 AM 09/07 Lanesboro-Root River 2.43 in 1230 PM 09/07 3 NE Preston 2.42 in 0800 AM 09/07 Fillmore 2.30 in 1230 PM 09/07 Peterson 1S 2.26 in 0700 AM 09/07 Spring Valley 3SW 2.25 in 0700 AM 09/07 Preston Airport 2.19 in 0655 AM 09/07 Pilot Mound-Root River 2.05 in 0100 PM 09/07 Preston 1.80 in 0735 AM 09/07 Whalan 3.3 SSE 1.61 in 0700 AM 09/07 Chatfield 1.45 in 0700 AM 09/07 ...Houston County... Eitzen 4NW 5.35 in 0800 AM 09/07 Caledonia 4.41 in 0700 AM 09/07 Spring Grove 4N 3.89 in 0700 AM 09/07 Hokah WWTP 2.79 in 0700 AM 09/07 Houston 2.51 in 1145 AM 09/07 La Crescent 2.40 in 0730 AM 09/07 1 NNW La Crescent 2.31 in 0700 AM 09/07 Mound Prairie 2.27 in 1245 PM 09/07 ...Mower County... Ostrander 5WNW 2.14 in 0700 AM 09/07 Lansing-Cedar River 0.82 in 1230 PM 09/07 Austin Waste Water Treatment 0.76 in 0900 AM 09/07 Austin 2NE-Dobbins Creek 0.72 in 1230 PM 09/07 Austin 3S 0.69 in 1200 PM 09/07 Austin Municipal Airport 0.69 in 0655 AM 09/07 Austin 3 NW - Turtle Creek 0.63 in 1230 PM 09/07 Austin 1ENE 0.63 in 0800 AM 09/07 ...Olmsted County... Eyota 2NE 1.96 in 1230 PM 09/07 Elgin 5SE 1.04 in 1230 PM 09/07 Elgin 2SSW 1.03 in 0700 AM 09/07 Oronoco 0.99 in 1230 PM 09/07 Rochester International Airp 0.96 in 0654 AM 09/07 Oronoco 1W 0.94 in 1230 PM 09/07 Chester 1W 0.94 in 0630 AM 09/07 Rochester-Beltline 0.83 in 1230 PM 09/07 Rochester-Beltline Bear Cree 0.81 in 1230 PM 09/07 Rochester-Cascade Creek 0.80 in 1230 PM 09/07 Rochester 0.80 in 0800 AM 09/07 Elba 4.7SW 0.80 in 0830 AM 09/07 Douglas 5E 0.80 in 1000 AM 09/07 2 ENE Rochester 0.78 in 1230 PM 09/07 Byron 0.77 in 1259 PM 09/07 2 N Rock Dell 0.73 in 0800 AM 09/07 Rochester 3W 0.70 in 1230 PM 09/07 2 NE Rochester 0.68 in 1249 PM 09/07 4 ESE Douglas 0.66 in 1252 PM 09/07 3 SW Hammond 0.66 in 1251 PM 09/07 Byron 4 North 0.63 in 0700 AM 09/07 2 SE Douglas 0.63 in 1251 PM 09/07 4 NNW Rochester 0.63 in 0700 AM 09/07 Oxbow Park Alert Gage 0.61 in 1200 PM 09/07 Mayo Helipad 0.61 in 0654 AM 09/07 3 N Rochester 0.60 in 1215 PM 09/07 3 NE Rochester 0.59 in 0100 PM 09/07 3 ESE Douglas 0.58 in 1250 PM 09/07 Pine Island 1S 0.57 in 1200 PM 09/07 Elgin 5SE 0.48 in 0330 AM 09/07 ...Wabasha County... Lake City 2.77 in 0730 AM 09/07 Kellogg-Zumbro River 2.38 in 1200 PM 09/07 Theilman 1SSW 2.00 in 0800 AM 09/07 Lake City 1.92 in 1019 AM 09/07 3 SW Zumbro Falls 1.78 in 0744 AM 09/07 Plainview 1.57 in 1251 PM 09/07 Wabasha 1.42 in 0700 AM 09/07 2 NNW Zumbro Falls 1.24 in 1148 AM 09/07 3 NW Wabasha 1.15 in 0730 PM 09/06 Mazeppa 3ESE 0.94 in 1230 PM 09/07 Plainview 0.50 in 0433 AM 09/07 Lake City 0.14 in 0434 AM 09/07 ...Winona County... La Crescent Dam 7 1.64 in 0600 AM 09/07 Whitewater State Park 1.24 in 1230 PM 09/07 Whitewater State Park Group 1.06 in 1230 PM 09/07 Stockton 1.04 in 0800 AM 09/07 Altura 5w 1.00 in 0700 AM 09/07 2 NNW Pickwick 0.96 in 0800 AM 09/07 1 E Winona 0.86 in 1255 PM 09/07 Lewiston 0.81 in 0700 AM 09/07 Whitewater State Park 0.71 in 0330 AM 09/07 3 ESE Stockton 0.70 in 0626 AM 09/07 Winona Dam 5A 0.65 in 0600 AM 09/07 Whitewater State Park Group 0.50 in 0330 AM 09/07 Minnesota City Dam 5 0.46 in 0600 AM 09/07 1 E Winona 0.43 in 0430 AM 09/07 Dakota 0.24 in 1215 PM 09/07 ...Wisconsin... ...Adams County... Grand Marsh 3.05 in 0700 AM 09/07 2 SE New Rome 2.93 in 0800 AM 09/07 Friendship 2.26 in 0700 AM 09/07 Monroe Center 1E 1.80 in 0700 AM 09/07 ...Buffalo County... Alma Dam 4 2.64 in 0600 AM 09/07 ...Clark County... Neillsville 1W 2.86 in 1100 AM 09/07 Neillsville 3ese 2.51 in 0700 AM 09/07 Colby 6SW 1.50 in 0500 AM 09/07 Owen 2N 0.90 in 0800 AM 09/07 ...Crawford County... Mt Sterling 5.11 in 1200 PM 09/07 De Soto 1SE 3.76 in 0620 AM 09/07 De Soto 3.70 in 1251 PM 09/07 Gays Mills 3.68 in 0740 AM 09/07 Soldiers Grove 3.40 in 0700 AM 09/07 Steuben 3.23 in 1245 PM 09/07 1 WNW Mount Zion 2.55 in 0700 AM 09/07 Ferryville 1se 2.41 in 0605 AM 09/07 Ferryville 2.41 in 0605 AM 09/07 Prairie Du Chien 1.32 in 0700 AM 09/07 Lynxville Dam 9 0.90 in 0600 AM 09/07 Prairie Du Chien Airport 0.90 in 0650 AM 09/07 Steuben 4SE 0.60 in 0700 AM 09/07 ...Grant County... Muscoda 1.18 in 1245 PM 09/07 Sinsinawa 0.80 in 0945 AM 09/07 Cuba City 0.65 in 0800 AM 09/07 1 ENE Boscobel 0.64 in 0103 PM 09/07 Lancaster 4wsw 0.53 in 0800 AM 09/07 Platteville 0.31 in 0700 AM 09/07 Boscobel Airport 0.30 in 0553 AM 09/07 Platteville Municipal Airpor 0.29 in 0655 AM 09/07 ...Jackson County... 1 E Black River Falls 3.03 in 1215 PM 09/07 Black River Falls 1.7 NNE 2.73 in 0700 AM 09/07 Black River Falls Sewage 2.38 in 0830 AM 09/07 Hatfield Dam 2.10 in 1145 AM 09/07 Black River Falls-black Rive 1.97 in 0715 AM 09/07 Black River Falls Area Airpo 1.77 in 0655 AM 09/07 Mather 3nw 1.53 in 0700 AM 09/07 ...Juneau County... 2 WNW Wisconsin Dells 4.18 in 0100 PM 09/07 Union Center 3.09 in 0745 AM 09/07 Mauston 2.61 in 1257 PM 09/07 4 ESE Sprague 2.47 in 0800 AM 09/07 Necedah 2.33 in 1248 PM 09/07 Volk Field 2.29 in 0658 AM 09/07 2 WNW Dellwood 2.03 in 1250 PM 09/07 Mauston 1se 2.02 in 0800 AM 09/07 2 N Cloverdale 1.95 in 1210 PM 09/07 Mauston Airport 1.29 in 0655 AM 09/07 ...La Crosse County... 3 W Saint Joseph 3.32 in 1255 PM 09/07 La Crosse Weather Office 2.31 in 0600 AM 09/07 West Salem 2w 2.22 in 0700 AM 09/07 West Salem 0.7 W 2.11 in 0700 AM 09/07 Holmen 2s 2.08 in 0700 AM 09/07 La Crosse Regional Airport 2.02 in 0653 AM 09/07 La Crosse 4NNW 1.84 in 0730 AM 09/07 Melrose 8.2 SSW 1.35 in 0800 AM 09/07 ...Monroe County... Sparta/Fort McCoy Airport 3.19 in 0655 AM 09/07 Kendall 3.15 in 1245 PM 09/07 Tunnel City 3.13 in 0700 AM 09/07 4 NNE Tunnel City 2.60 in 0946 AM 09/07 Fort Mccoy- Stillwell Creek 2.39 in 0715 AM 09/07 4 W Valley Junction 2.05 in 0700 AM 09/07 2 E Cataract 1.54 in 1258 PM 09/07 Warrens 4WSW 1.27 in 0700 AM 09/07 Four Corners 1.23 in 0700 AM 09/07 2 E Cataract 1.09 in 0433 AM 09/07 Cashton 3NNW 1.06 in 0749 AM 09/07 ...Richland County... Richland Center 4N 3.68 in 0700 AM 09/07 3 NW Avoca 0.81 in 1208 PM 09/07 ...Taylor County... Westboro 4E 1.25 in 0700 AM 09/07 Jump River 1 NW 0.48 in 0900 AM 09/07 Gad 0.41 in 0700 AM 09/07 Medford 0.38 in 0800 AM 09/07 Medford Airport 0.25 in 0655 AM 09/07 3 NE Lublin 0.23 in 1214 PM 09/07 Chelsea 0.07 in 1246 PM 09/07 ...Trempealeau County... 1 NW Trempealeau 1.28 in 0630 AM 09/07 Galesville 2wsw 0.93 in 0900 AM 09/07 Ettrick 4WNW 0.74 in 0718 AM 09/07 Trempealeau Dam 6 0.71 in 0600 AM 09/07 ...Vernon County... Purdy 7.10 in 1200 PM 09/07 Readstown 5.10 in 1200 PM 09/07 Genoa Dam 8 4.80 in 0600 AM 09/07 Viola 4.70 in 0617 AM 09/07 3 WNW Viola 4.60 in 0800 AM 09/07 Readstown 4NE 4.30 in 0800 AM 09/07 Viroqua 4.04 in 0700 AM 09/07 Viroqua 0.8 ESE 3.95 in 0700 AM 09/07 Hillsboro 2sw 3.85 in 0700 AM 09/07 Viroqua Municipal Airport 3.59 in 0655 AM 09/07 La Farge 3.39 in 0715 AM 09/07 Hillsboro WSW 3.20 in 0700 AM 09/07 Westby 3ENE 2.23 in 0700 AM 09/07 Stoddard 2.11 in 0700 AM 09/07 Ontario 2.10 in 1100 AM 09/07 Coon Valley 1.91 in 0800 AM 09/07 Ontario 3e 1.86 in 0700 AM 09/07 Observations are collected from a variety of sources with varying equipment and exposures. Not all data listed are considered official.
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