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Sioux Falls, SD

Weather Forecast Office

Heavy Rain and Historic Flooding of Northwest Iowa, Southwest Minnesota, and Southeast South Dakota - June 20-22, 2024

Weather.gov > Sioux Falls, SD > Heavy Rain and Historic Flooding of Northwest Iowa, Southwest Minnesota, and Southeast South Dakota - June 20-22, 2024

Overview

A multi-day heavy rainfall event led to widespread heavy rain across the region. Rainfall totals over a three-day period exceeded 2 inches in nearly all areas, with widespread totals between 5 and 10".  In pockets of southeastern South Dakota and northwest Iowa, rain totals between 10 and 20" were reported. 

The rapid onset of heavy rainfall created numerous flash flooding events on June 20th, which repeated themselves during the evening of June 21. As rainfall reached area streams and rivers, record flooding was observed at numerous river points, leading to widespread devastating flooding in the towns along the rivers.  While many cities were impacted, more widespread flooding took place in Luverne, Jackson, Windom and Adrian, Minnesota; Rock Valley, Akron, Hawarden, Spencer, Milford, Cherokee and Correctionville, Iowa; and portions of the Sioux City and Sioux Falls metros.

This page will continue to be updated through the next week as more pictures are added and historical and environmental data can be retrieved. 

 

 Map of three day rainfall from june 20-22, 2024
Three Day Rainfall - June 20-22, 2024
Aerial Photo of flooding in Rock Valley Iowa Aerial Photo of flooding in Spencer Iowa Aerial Photo of flooding in Hawarden Iowa
Rock Valley (Credit: Warrior Sports Photography) Spencer, IA (Credit: Shawn Steemke) Hawarden, IA (Credit: Glenda Hemmelrick)

Flooding

Moderate to Major river flooding was widespread as a result of the heavy rainfall, with several locations reaching record high river stages. Unfortunately, sporadic data outages at some gages led to incomplete hydrograph traces, but we will be working with local officials to determine the peak crest at these locations. 

 

List of river gages along the James, Big Sioux, and Vermillion Rivers which exceeded record stages during this event. List of river gages along the Rock, Floyd, Little Sioux, and Des Moines Rivers which exceeded record stages during this event.

New River Flood Records

*All data preliminary and subject to change. Spencer and Cherokee crest values via high water mark survey and estimated. 

 

 

Hydrographs - Floyd River

 

Hydrograph for the Floyd River at Sheldon Iowa Hydrograph for the Floyd River at Alton Iowa Hydrograph for the Floyd River near Struble Iowa
Sheldon, IA Alton, IA near Struble, IA

 

Hydrograph for the Floyd River at Le Mars Iowa Hydrograph for the Floyd River at Merrill Iowa Hydrograph for the Floyd River at James Iowa
Le Mars, IA Merrill, IA James, IA

 

Hydrographs - Little Sioux River

Hydrograph for the West Fork of the Little Sioux River near Lake Park Iowa Hydrograph for the Little Sioux River near Milford Iowa Hydrograph for the Little Sioux River near Spencer Iowa at Highway 18 Hydrograph for the Ocheyedan River at Spencer Iowa
West Fork near Lake Park, IA Milford, IA near Spencer, IA / Hwy 18 Ocheyedan near Spencer, IA

 

Hydrograph for the Little Sioux River at Spencer Iowa Hydrograph for the Little Sioux River at Linn Grove Iowa Hydrograph for the Little Sioux River at Cherokee Iowa Hydrograph for the Little Sioux River at Correctionville Iowa
Spencer, IA Linn Grove, IA Cherokee, IA Correctionville, IA

 

Hydrographs - Big Sioux River

Hydrograph for the Big Sioux River near Dell Rapids South Dakota Hydrograph for the Big Sioux River at Sioux Falls I-90 Hydrograph for the Big Sioux River at Sioux Falls Maple Street Hydrograph for the Big Sioux River at Sioux Falls Western Avenue
Dell Rapids, SD Sioux Falls at I-90 Sioux Falls at Maple Street Sioux Falls at Western Ave

 

Hydrograph for the Big Sioux River at Sioux Falls North Cliff Avenue Hydrograph for the Big Sioux River near Brandon South Dakota Hydrograph for the Big Sioux River above Canton South Dakota Hydrograph for the Big Sioux River above Hawarden Iowa
Sioux Falls at North Cliff Ave Brandon, SD above Canton, SD near Hawarden, IA

 

Hydrograph for the Big Sioux River at Akron Iowa Hydrograph for the Big Sioux River near Richland South Dakota Hydrograph for the Big Sioux River near Jefferson South Dakota Hydrograph for the Big Sioux River at Sioux City Iowa
Akron, IA Richland, SD Jefferson, SD Sioux City, IA

Hydrographs - Tributary Creeks to the Big Sioux River (Skunk/Willow/Pipestone/Split Rock)

Hydrograph for Skunk Creek near Chester South Dakota Hydrograph for Skunk Creek near Hartford South Dakota Hydrograph for Willow Creek near Crooks South Dakota Hydrograph for Skunk Creek at Sioux Falls South Dakota
Skunk Creek near Chester, SD Skunk Creek near Hartford, SD Willow Creek near Crooks, SD Sioux Falls, SD
 
Hydrograph for Pipestone Creek below Pipestone, MN Hydrograph for Split Rock Creek at Corson, SD Hydrograph for the Beaver Creek at Canton South Dakota Hydrograph for the Brule Creek near Richland South Dakota
Pipestone Creek below Pipestone, MN Split Rock Creek at Corson, SD Beaver Creek at Canton, SD Brule Creek near Richland, SD

 

Hydrographs - Rock River

Hydrograph for the Rock River near Hardwick, MN Hydrograph for the Rock River at Luverne, MN Hydrograph for the Rock River at Rock Rapids, IA Hydrograph for the Rock River at Rock Valley, IA
Hardwick, MN Luverne, MN Rock Rapids, IA Rock Valley, IA

 

Hydrographs - West Fork Des Moines River

Hydrograph for the West Fork Des Moines River above Windom Minnesota Hydrograph for the West Fork Des Moines River at Jackson Minnesota
Windom, MN Jackson, MN

 

Hydrographs - Vermillion River

Hydrograph for the West Fork Vermillion River near Parker South Dakota Hydrograph for the East Fork Vermillion River near Parker South Dakota Hydrograph for the Vermillion River near Davis South Dakota Hydrograph for the Vermillion River near Wakonda South Dakota Hydrograph for the Vermillion River at Vermillion South Dakota
West Fork near Parker, SD East Fork near Parker, SD Davis, SD Wakonda, SD Vermillion, SD

 

Hydrographs - James River

Hydrograph for the Firesteel Creek near Mt. Vernon South Dakota Hydrograph for the James River near Mitchell South Dakota Hydrograph for the Wolf Creek near Freeman South Dakota Hydrograph for the James River near Scotland South Dakota Hydrograph for the James River near Yankton South Dakota
Firesteel Creek - Mt. Vernon, SD Mitchell, SD Wolf Creek - Freeman, SD Scotland, SD Yankton, SD

 

Hydrographs - Missouri River

Hydrograph for the Missouri River near Ponca Nebraska Hydrograph for the Missouri River at Sioux City Iowa
Ponca, NE South Sioux City, NE

 

Photos & Video

Flooding Photos

I-90 at Adrian Photo in Arkon, IA Photo Photo
I-90 At Adrian
(Credit: MNDOT)		 Akron, IA
(Credit: Chris Pierce)		 Akron, IA
(Credit: Megan Hulleman)		 Alton, IA
(Credit: Ashley Rothmeier)
I-90 at Adrian I-90 at Adrian I-90 at Adrian I-90 at Adrian
I-90 At Alton, IA
(Credit: Michelle Coacher Bostinelos)		 Ashton, IA
(Credit:Caitlin Thong Vanh)		 Beliot, IA
(Credit: Morgan Koerselman)		 Sioux Falls Arch
(Credit: Cody Popke)
Aerial Photo of a train derailment due to a compromised railroad bridge south of Alvord Iowa Aerial Photo of a train derailment due to a compromised railroad bridge south of Alvord Iowa Aerial Photo of a train derailment due to a compromised railroad bridge south of Alvord Iowa Photo of flooding in Brewster Minnesota
South of Alvord, IA
(Credit: Dan Gottschalk)		 South of Alvord, IA
(Credit: Dan Gottschalk)		 South of Alvord, IA
(Credit: Dan Gottschalk)		 Brewster
(Credit: Dawn Haberman)
Aerial photo of flooding near Brandon South Dakota Aerial photo of flooding along Beaver Creek near Canton SD Aerial photo of flooding along the Vermillion River near Davis SD Aerial Photo from east of Lake Alvin (south of Sioux Falls)
Brandon, SD
(Credit: Eric Van Donge)		 Beaver Creek near Canton, SD
(Credit: Byron Ostrom)		 Davis, SD
(Credit: Lukas Potgieter)		 east of Lake Alvin (near Sioux Falls)
(Credit: Eric Van Donge)
Photo of water across Interstate 90 west of the Magnolia MN exit Photo of a flooded street on the north side of Harrisburg SD Photo of flood waters up to photographer's deck in Hawarden Iowa Photo of flooded homes in Hawarden Iowa taken from a kayak
near Magnolia MN exit on I-90
(Credit: MNDoT webcam)		 Harrisburg, SD
(Credit: Evan Jones)		 Hawarden, IA
(Credit: Glenda Hemmelrick)		 Hawarden, IA
(Credit: Sarah Topete)
Photo of flood waters across the intersections of Highway 44 and 81 in southeast South Dakota Photo of flood waters and tree debris across the road in Hospers Iowa Photo of a flooded gravel road near Hurley South Dakota Aerial Photo of flooded camping area and race track/infield at Huset's Speedway in Brandon, SD
Intersection of Hwys 44 & 81
(Credit: Kelly Schmidt Blair)		 Hospers, IA
(Credit: Susan Budden)		 southwest of Hurley, SD
(Credit: Shawn Oaks)		 Huset's Speedway - Brandon, SD
(Credit: djonesfilmz)
Aerial Photo of overland flooding along I-29 near mile marker 60 in southeast South Dakota Photo of flooded Klondike Bridge at the IA/SD border Photo of flooding at Lake Lakota south of Canton (an area which had previously been dry) Aerial Photo of a flooded Lake Alvin near Sioux Falls spilling over a nearby road
I-29 near Mile Marker 60
(Credit: Ryan Oswald)		 Klondike Bridge at Iowa/South Dakota border
(Credit: Katie Stricker)		 Lake Lakota south of Canton, SD
(Credit: Tom & Brianna Dose)		 Lake Alvin near Sioux Falls, SD
(Credit: Eric Van Donge)
Photo of flooding at Legacy Park in Sioux Falls SD Photo of widespread flooding near Highway 3 in Le Mars Iowa from the Floyd River. Photo of flooding at 12th Street and La Mesa in western Sioux Falls, SD Photo of flooding near Menno, SD
Legacy Park in Sioux Falls, SD
(Credit: Winny Tink)		 Le Mars, IA
(Credit: Nathan Vrieze)		 12th Street in western Sioux Falls, SD (Credit: Marilyn Murray) near Menno, SD
(Credit: Michele Huber)
Photo of flooding near Montrose, SD Aerial Photo of flooding around Mountain Lake Minnesota Photo of flooding at a bridge near the O'Brien-Cherokee County Line Photo of overland flooding near Parker, SD
Montrose, SD
(Credit: Sierra Rae)		 Mountain Lake, MN
(Credit" Mountain View Drones)		 O'Brien/Cherokee County Line
(Credit: Shane Whitney)		 near Parker, SD
(Credit: Carrie Forrest)
Radar/Photo Cars submerged to the roof in flood waters in Spencer Iowa Aerial Photo of flooding near Paullina Iowa Photo of building submerged in flood waters at Riverdale Park in Sioux Falls
Hwy 44 near Parker, SD
(Credit: Emily Houska)		 Spencer, IA
(Credit: Russ Mitchell)		 Paullina, IA
(Credit: Cristie Tewes)		 Riverdale Park in Sioux Falls, SD
(Credit: Donna Murphy)
Photo of flooding at Rotary Park in eastern Sioux Falls SD Photo of river flooding at the entrance to Cherry Rock Park in eastern Sioux Falls SD Photo of river flood waters near the top of a ball field outfield fence at Cherry Rock Park in eastern Sioux Falls SD Photo of flooding at the entrance to Spencer Dog Park in southern Sioux Falls, SD
Rotary Park in Sioux Falls, SD
(Credit: Cierra Dirkson-Chapin)		 Cherry Rock Park entrance in eastern Sioux Falls, SD Cherry Rock Park ball field in
eastern Sioux Falls, SD		 Spencer Dog Park entrance in southern Sioux Falls, SD
Photo of flooded observation/viewing area below the walking bridge at Falls Park in Sioux Falls, SD Photo of a submerged building at Leif Erikson Camp in eastern Sioux Falls, SD Photo of flooding in Rock Rapids Iowa Aerial Photo of flooding in a neighborhood in Rock Valley Iowa
Falls Park (below the walking bridge) in Sioux Falls, SD
(Credit: Heather Sargent Kroontje)		 Leif Erikson Camp in Sioux Falls, SD
(Credit: Heather Sargent Kroontje)		 Rock Rapids, IA
(Credit: Hailey Olson)		 Rock Valley, IA
(Credit: Warrior Sports Photography)
Photo of a flooded golf course in Slayton Minnesota Aerial Photo of flooding in Spencer Iowa Photo of flood waters taken from the roof of a house. Photo of water flowing across a road at Struble Iowa
Slayton, MN
(Credit: Kate Harmsen)		 Spencer, IA
(Credit: Eric Johannsen)		 Spencer, IA
(Credit: Kianna Seidel)		 Struble, IA
(Credit: Brooke Berkenpas)
Photo of a flooded road in Chandler Minnesota Photo of a washed out road around culvert near Kaylor South Dakota Photo of a flooded park in Tyndall South Dakota Photo of flooding at the baseball field in Windom Minnesota
Chandler, MN
(Credit: Faith Prins)		 Kaylor, SD
(Credit: Sheryl Frey)		 Tyndall, SD
(Credit: Marcia Tallman)		 Windom, MN
(Credit: Laurie Murphy)
Radar/Photo Radar/Photo Radar/Photo Radar/Photo
Cherokee, IA
(Credit: Kasha Cords Shear)		 Sioux Falls, SD
(Credit: Cody Papke)		 Lake Alvin
(Credit:Eric Van Donge)		 Caption

Before and After Comparison Photos from Landsat Satellite

Before Flooding (Date of image below photo) After Flooding (Date of image below photo)
Landsat Satellite Image from June 16, 2024 over southeast South Dakota before historic flood eventLandsat Satellite Image from June 16, 2024, zoomed into the Big Sioux/Missouri River confluence area in extreme southeast South Dakota before historic flood event Landsat Satellite Image of southeast South Dakota near the peak of an historic flood event on June 24, 2024
Landsat Satellite Image from June 16, 2024, zoomed into the Big Sioux/Missouri River confluence area in extreme southeast South Dakota before historic flood event Landsat Satellite Image zoomed into the Big Sioux/Missouri River confluence area in extreme southeast South Dakota near the peak of an historic flood event on June 24, 2024

 

Before and After Comparison Photos from the Landsat 8 Satellite

Radar/Photo Radar/Photo Radar/Photo Radar/Photo
Landsat 8 View SE McCook Lake
(Credit: USGS Landsat 8)		 Landsat 8 View Akron, IA
(Credit: USGS Landsat 8)		 Landsat 8 View Cherokee, IA
(Credit: USGS Landsat 8)		 Landsat 8 View SE South Dakota
(Credit: USGS Landsat 8)
Radar/Photo Radar/Photo Radar/Photo Radar/Photo
Landsat 8 View Rock Valley
(Credit: USGS Landsat 8)		 Landsat 8 View Spencer, IA
(Credit: USGS Landsat 8)		 Landsat 8 View Sioux City Area
(Credit: USGS Landsat 8)		 Landsat 8 View Hawarden, IA
(Credit: USGS Landsat 8)

 

Radar

Radar Loops Across the Event

Radar Image Radar Image Radar Image
Radar Loop - June 20-21, 2024 Radar Loop - June 21-22, 2024 Radar Loop - June 22, 2024

Rain Reports

Notable 3-Day Rainfall Stats (stations with long-term records, COOP or WBAN):

 

Station: 3-day Rainfall 6/20-6/22 Historic Rank Record 3-day Rainfall Probability of Occurrence in any given year* Normal Monthly June Rainfall June 2024
MTD Rainfall
(as of 6/24)
Canton SD 4WNW 12.02” 2nd 13.16”
June 14-16, 2014		 <0.10% 4.66” 15.64”
Mitchell SD 8.55” 1st Previous 7.08”
Sept 10-12, 2019		 0.20% 3.51” 12.07”
Menno SD 7.33” 1st Previous 7.06”
Aug 18-20, 1937		 0.50% 3.64” 10.59”
Sioux Falls SD 6.70” 2nd 7.71”
June 14-16, 2014		 1% 4.23” 10.80”
Windom MN 9.16” 2nd 9.36”
Sept 23-25, 2010		 0.50% 4.73” 13.68”
Rock Valley IA 8.70” 1st Previous 7.05”
Sept 18-20, 2018		 0.50% 4.60” 12.86”
Sibley IA 8.61” 3rd 9.34”
June 18-20, 1954		 1% 4.88” 14.15”
Sheldon IA 7.22” 4th 10.05”
July 14-16, 1900		 2% 4.67” 12.24”
Spirit Lake IA 6.69” 4th 8.09”
Sept 13-15, 2004		 n/a 4.77” 15.57”
Sanborn IA 6.85” 3rd 7.80”
Sept 19-21, 2018		 3% 4.86” 12.06”
Spencer IA 6.49” 4th 7.29”
Sept 13-15, 2004		 4% 4.60” 10.45”

*  Probability of Occurrence based roughly on 3-day ARI from Precipitation Frequency Estimates

 

Three Day Rainfall Totals - June 20-22, 2024
Location Amount
   
...Iowa...  
   
...Buena Vista County...  
0.8 SW Linn Grove 2.72 in
   
...Cherokee County...  
0.9 NE Cherokee 2.15 in
   
...Clay County...  
Spencer 1N 6.49 in
1 NNE Peterson 3.69 in
   
...Dickinson County...  
1 NNE Milford 9.13 in
1 ESE West Okaboji 9.09 in
Lake Park 8.90 in
TERRIL 7.51 in
Spirit Lake 7.33 in
Lake Park 3.2 SSE 6.88 in
0.6 E Spirit Lake 6.69 in
Lake Park 6.12 in
Milford 5.75 in
   
...Ida County...  
Arthur 3.7 SSW 0.52 in
   
...Lyon County...  
5 SSW Rock Rapids 11.52 in
3 ESE Lester 10.08 in
1 ESE Larchwood 10.02 in
5 SW George 9.94 in
4 SW George 9.40 in
5 SSW Ellsworth 7.67 in
   
...OBrien County...  
Sanborn 8.61 in
Sheldon 7.22 in
Hartley 6.19 in
Primghar 5.49 in
   
...Osceola County...  
1 NNW Sibley 8.07 in
1 NNE Sibley 7.40 in
   
...Plymouth County...  
Le Mars 1.0 E 1.65 in
Le Mars 1.63 in
Big Sioux River 0.96 in
Remsen 0.90 in
6.2 NW Hinton 0.68 in
6 NNE Jefferson 0.50 in
Big Sioux River 0.36 in
Loess Hills Tnc Broken 0.25 in
4.0 W Hinton 0.02 in
   
...Sioux County...  
1 E Hull 6.79 in
Orange City 4.42 in
Sioux Center 4.09 in
0.7 N Rock Valley 3.43 in
Floyd River 2.54 in
Hawarden 2.04 in
   
...Woodbury County...  
3.4 N Hornick 1.04 in
Sioux City 0.49 in
Sioux Gateway Airport 0.48 in
1.0 E Hornick 0.33 in
1 ENE Dakota City 0.32 in
   
...Minnesota...  
   
...Cottonwood County...  
Mountain Lake 8.44 in
Windom 7.97 in
2 SE Delft 6.99 in
   
...Jackson County...  
8 N Lakefield 5.87 in
6 NW Orleans 4.78 in
Jackson 4.45 in
Okabena 3.2 S 4.15 in
   
...Lyon County...  
Balaton 2.1 SE 3.66 in
Russell 3.42 in
Marshall 0.9 SSW 3.06 in
Marshall 2.58 in
Marshall Municipal Airport 2.52 in
   
...Murray County...  
Chandler 2.7 SSE 7.51 in
3 WNW Chandler 6.40 in
Fulda 0.3 NNE 4.68 in
   
...Nobles County...  
1 NW Adrian 9.80 in
3 SSW Lismore 8.18 in
Bigelow 1.8 NW 7.05 in
7 NE Rushmore 6.75 in
Brewster 0.1 SW 6.03 in
Worthington 4.0 S 5.71 in
Worthington 2 NNE 5.62 in
Worthington 1.9 SW 5.55 in
Worthington Airport 4.90 in
   
...Pipestone County...  
Edgerton 0.2 WSW 5.37 in
6.0 NW Ihlen 3.52 in
Redstone RAWS 3.28 in
   
...Rock County...  
6 NW Beaver Creek 6.67 in
Luverne 6.09 in
2.3 NE Sherman 5.81 in
0.9 NE Luverne 2.90 in
4 S Hardwick 2.75 in
   
...Nebraska...  
   
...Dakota County...  
Hubbard 3.1 SW 0.15 in
   
...Dixon County...  
Newcastle 0.50 in
   
...South Dakota...  
   
...Aurora County...  
SD RWIS Plankinton 8.34 in
4 W Plankinton 6.75 in
Plankinton 3.8 W 5.80 in
4 SW Stickney 4.15 in
Stickney 3.8 SW 3.65 in
   
...Beadle County...  
SD RWIS Wolsey 3.64 in
Huron 6.8 NNE 3.28 in
1 S Huron 3.13 in
Huron Regional Airport 2.12 in
   
...Brookings County...  
Elkton 4.10 in
Bruce 5.3 W 3.23 in
Elkton 3.05 in
Brookings 6.5 NNW 3.00 in
Volga 0.4 E 2.97 in
Aurora 0.3 NNE 2.77 in
Brookings 2 NE 2.73 in
Brookings 1.6 S 2.58 in
Brookings 1.4 SW 2.50 in
Brookings 1.0 S 2.48 in
   
...Bon Homme County...  
Tyndall 3.13 in
   
...Brule County...  
4 SE Kimball 10.67 in
2 S Punkwana 7.18 in
Chamberlain 0.3 W 4.60 in
SD RWIS Kimball 4.45 in
   
...Charles Mix County...  
SD RWIS WAGNER 5.03 in
Academy 2 NE 2.98 in
Lake Andes RAWS 2.76 in
SD RWIS Platte-Winner Bridge 2.55 in
Platte 2.10 in
Academy 2 NE 1.93 in
   
...Clay County...  
Vermillion 1.4 SE 0.98 in
1.4 S Vermillion 0.45 in
2.4 N Vermillion 0.36 in
Beresford 7 WSW (SD Mesonet) 0.17 in
   
...Davison County...  
1 SSW Mitchell 8.59 in
Mitchell 1.0 SE 8.06 in
Mitchell Municipal Airport 6.38 in
Mitchell 7.3 S 5.77 in
   
...Douglas County...  
SD RWIS Corsica 4.85 in
4 W Corsice 4.61 in
Dimock 10.2 W 3.94 in
   
...Gregory County...  
SD RWIS Dixon 4.37 in
Burke 10.5 SSE 4.00 in
Herrick 8.2 SSW 3.40 in
Bonesteel 0.1 S 3.32 in
   
...Hanson County...  
SD RWIS Alexandria 7.06 in
Alexandria 6.4 N 6.28 in
   
...Hutchinson County...  
5 S Parkston 5.62 in
SD RWIS Tripp 4.78 in
Emery 10.8 S 4.75 in
Parkston 6.5 WSW 4.10 in
4.3 SE Olivet 4.09 in
   
...Jerauld County...  
Wessington Springs 3.17 in
SD RWIS Lane 2.98 in
   
...Kingsbury County...  
1 E Oldham 3.43 in
10 NNE Lake Preston 3.21 in
De Smet 0.2 SSE 2.86 in
SD RWIS Arlington 1.72 in
   
...Lake County...  
5 ESE Orland  8.64 in
5 SSW Wentworth 5.89 in
Wentworth 4.7 SSW 5.80 in
Madison 2SE 4.86 in
Madison 0.8 NE 3.26 in
   
...Lincoln County...  
4 SW Worthing 17.83"
4 SSE Worthing 17.48"
Canton 1.2 W 13.10 in
8 SSW Worthing 12.74 in
Canton 12.02 in
5 SE Davis 11.99 in
Lennox 3.3 NE 10.02 in
Harrisburg 0.7 NNE 8.93 in
HARRISBURG 7.79 in
Tea 7.52 in
Sioux Falls 3.6 SSE 6.97 in
   
...McCook County...  
SD RWIS STANLEY CORNER 7.21 in
Parker 7.2 N 6.47 in
4 ENE Monroe 6.45 in
Parker 9.7 N 6.27 in
Montrose 5.8 NW 5.67 in
Montrose 5.52 in
Bridgewater 5.25 in
   
...Miner County...  
3 ESE Canova  8.74 in
SD RWIS Howard 6.77 in
Howard 5.3 W 4.89 in
   
...Minnehaha County...  
1 WSW Crooks 9.67 in
EROS DATA CNTR SIOUX FALLS 8.32 in
Renner 4.1 NW 8.17 in
Hartford 0.5 N 7.83 in
Garretson 5.8 WNW 7.74 in
Sioux Falls 4  S 7.68 in
Sioux Falls 3.0 S 7.64 in
Sioux Falls 4.9 WSW 7.08 in
Sioux Falls 3.3 E 7.01 in
Sioux Falls 1.6 SW 6.95 in
Sioux Falls 5.5 N 6.89 in
Sioux Falls 5.0 SE ARPT 6.76 in
Sioux Falls 4.1 WSW 6.67 in
Sioux Falls 1.9 SSW 6.58 in
Garretson 6.9 W 6.50 in
SIOUX FALLS 6.36 in
Colton 3.8 S 6.18 in
5 W Garretson 6.16 in
5 SSE Baltic 6.05 in
Sioux Falls 5.88 in
Dell Rapids 0.1 SE 5.86 in
Sioux Falls Airport 5.81 in
Brandon 5.59 in
2.3 SW Crooks 5.24 in
Garretson 1.7 WSW 5.23 in
   
...Moody County...  
SD RWIS Ward 8.26 in
Flandreau 4.45 in
   
...Sanborn County...  
SD RWIS Forestburg 6.42 in
Woonsocket 0.2 WSW 3.93 in
   
...Turner County...  
Hurley 0.2 S 9.58 in
SD RWIS Parker 9.29 in
5 NW Marion 8.25 in
SD RWIS IRENE 5.58 in
   
...Union County...  
SD RWIS Beresford 1.13 in
   
...Yankton County...  
Yankton 2 E 2.25 in
Yankton 9.1 W 1.93 in
SD RWIS Gayville 1.91 in
Yankton 7.0 W 1.91 in
Yankton 1.7 NNE 1.74 in

 

 

Environment

Insert synoptic summary.

Environment Environment Environment
Figure 1: Caption Figure 2: Caption Figure 3: Caption


Near-storm environment summary.

Environment Environment Environment
Figure 4: Caption Figure 5: Caption Figure 6: Caption


Additional environmental data.

Environment Environment Environment
Figure 7: Caption Figure 8: Caption Figure 9: Caption

Additional Information

The Forecast

WPC Day 1 Excessive Rainfall Outlook - Issued 6/20 am (valid 7am 6/20 through 7am 6/21) WPC Day 2 Excessive Rainfall Outlook - Issued 6/20 am (valid 7am 6/21 through 7am 6/22) WPC Day 1 Excessive Rainfall Outlook Update - Issued 6/20 pm (valid 7am 6/20 through 7am 6/21)

WPC Day 1 Excessive Rainfall Outlook
Issued 6/20 am
(valid 7am 6/20 through 7am 6/21)

[Red shaded area indicates a Moderate- level 3 out of 4 risk]

WPC Day 2 Excessive Rainfall Outlook
Issued 6/20 am
(valid 7am 6/21 through 7am 6/22)

[Red shaded area indicates a Moderate- level 3 out of 4 risk]

WPC Day 1 Excessive Rainfall Outlook UPDATE Issued 6/20 pm
(valid 7am 6/20 through 7am 6/21)

[Red shaded area indicates a Moderate- level 3 out of 4 risk]
Flood Watch for Flash Flooding - issued 6/20 am (valid 8am 6/20 through 8am 6/21) Flood Watch for Flash Flooding - Issued 6/20 pm (valid 8am 6/20 through 7am 6/22) Flood Watch for Flash Flooding - Issued 6/21 am (continues through 7am 6/22)
Flood Watch for Flash Flooding
Issued 6/20 am
(valid 8am 6/20 through 8am 6/21)		 Flood Watch for Flash Flooding
Issued 6/20 pm
(valid time extended through 7am 6/21)		 Flood Watch for Flash Flooding
Issued 6/21 am
(continues through 7am 6/22)
Mesoscale precipitation discussion from the Weather Prediction center Mesoscale precipitation discussion Mesoscale Precipitation Discussion
Mesoscale Precipitation Discusion 
Issued 216 pm June 20. 2024		 Mesoscale Precipitation Discusion 
Issued 800 pm June 20. 2024		 Mesoscale Precipitation Discusion 
Issued 1223 am June 21. 2024
Mesoscale precipitation discussion from the Weather Prediction center Mesoscale precipitation discussion from the Weather Prediction center Mesoscale precipitation discussion from the Weather Prediction center
Mesoscale Precipitation Discusion 
Issued 1005 am June 21. 2024		 Mesoscale Precipitation Discusion 
Issued 352 pm June 21. 2024		 Mesoscale Precipitation Discusion 
Issued 953  pm June 21. 2024

Summaries from other NWS Offices

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City Forecasts
Chamberlain, SD
Brookings, SD
Huron, SD
Mitchell, SD
Sioux Falls, SD
Vermillion, SD
Yankton, SD

City Forecasts
Marshall, MN
Pipestone, MN
Windom, MN
Worthington, MN
Sioux City, IA
Spencer, IA
Storm Lake, IA