Abundant moisture, relatively weak air flow, and a weak disturbance moving through the region produced scattered thunderstorms during the afternoon and evening of June 10. Water loaded storms produced locally heavy rainfall and some flooding.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FSD wrote it up.
Abundant moisture, relatively weak air flow, and a weak disturbance moving through the region produced scattered thunderstorms during the afternoon and evening of June 10. Water loaded storms produced locally heavy rainfall and some flooding. In addition, the developing phase of storms across southwest Minnesota resulted in very brief landspouts.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before the first event at Jun 10, 11:27 AM CST, 2 hours 20 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Sioux Falls SD 1227 PM CDT Sat Jun 10 2023 .SHORT TERM...(Today and Tonight) Issued at 356 AM CDT Sat Jun 10 2023 Today: Another warm and wet day will likely be on tap for the day. Taking a look across the area, ample low level moisture (Td>60) and light surface winds have lead to a few developing areas of patchy fog. While this isn't expected to stick around long, a few areas along the Missouri and James River Valleys could see temporary reductions in visibility (< 3 miles) through daybreak. Otherwise, scattered showers continue to linger across our eastern and northwestern counties in response to weak instability aloft. Expect these showers to slowly dissipate over the next few hours before restrengthening late this morning as an upper level wave swings through the area from our northwest to southeast. With renewed instability from the shortwave aloft and frontal forcing at the surface, shower and thunderstorm activity will become more numerous through out the afternoon and evening. Tonight: While severe weather is not expected, PWATs closer to 1.40- 1.50 inches and slow storm motions (<20kts) could cause a few minor flooding concerns in area that receive consistent rainfall this afternoon. Otherwise, developing showers and thunderstorms will continue to push southwards ahead of the previously mentioned cold front. Northeasterly winds will become a touch breezy this afternoon as the SPG tightens behind the frontal boundary. Given the cool air aloft and dreary conditions at the surface, daytime highs will likely only peak in the mid to upper 70s for the day with cooler conditions in the low to mid 50s overnight. .LONG TERM...(Sunday through Friday) Issued at 356 AM CDT Sat Jun 10 2023 Sunday-Tuesday: Heading into the extended period, the previously mentioned trough will continue to swing through the region as colder air funnels to the surface behind the southward propagating cold front. With the surface pressure gradient (SPG) expected to tighten behind the frontal boundary, parts of the area could see another round of breezier conditions with winds gusts up to 30 mph possible at times. Otherwise, with cooler air aloft; afternoon temperatures will be quite pleasant on Sunday with highs expected to be in the low to mid 70s. However, the cooler temperatures will be short lived as surface ridging moves into the northern plains on Monday marking the start of a warming trend through Wednesday. This will result in highs in the upper 70s to low 80s on Monday and low to upper 80s on Tuesday respectfully. Wednesday-Friday: Looking into the middle and latter parts of the week, the previously mentioned upper level trough becomes a closed low over the Great lakes Region keeping our upper level flow out of the north. However, things change as an upper level ridge approaches from the west. Heights begin to rise as our upper level flow weakens. This will result in a mostly dry and quiet forecast through at least Thursday as summer-like conditions return. Temperatures will continue to be well above seasonal normals as highs reach the low to mid 80s on both Wednesday and Thursday. By Thursday, a weak shortwave passes through the northern plains possibly bringing more precipitation chances by Thursday afternoon. However, guidance is a bit split on the strength and timing of the wave. As a result, left the default NBM POPs in the grids for this time period. Otherwise, afternoon temperatures will slightly cool with the passage of the previously mentioned shortwave. This will result in highs closer to the upper 70s and low 80s Friday afternoon. && .AVIATION...(For the 18Z TAFS through 18Z Sunday Afternoon) Issued at 1222 PM CDT Sat Jun 10 2023 Scattered shower and thunderstorm will continue to develop and spread south through the afternoon, associated with a weak front tracking through and diurnal destabilization. Expect conditions to deteriorate to low VFR and MVFR this afternoon with this activity. Winds will remain northeasterly near and behind the front with gusts into the 20s. Drier air spreads in from the north this evening, diminishing showers and storms by 07z near SUX (and even earlier further north). Behind this, VFR conditions will prevail with skies clearing. Northeast winds will weaken gradually on Sunday with diurnal cumulus development likely near and west of I-29. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. IA...None. NE...None. && SHORT TERM...Gumbs LONG TERM...Gumbs AVIATION...BP
Hazardous Weather Outlook National Weather Service Sioux Falls SD 443 AM CDT Sat Jun 10 2023 IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-110945- Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson- Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory- Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook- Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton- Union- 443 AM CDT Sat Jun 10 2023 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska, central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Today and tonight. Isolated showers and thunderstorms this morning will become more numerous by this afternoon and evening. While severe weather is not expected, slow moving storms could cause a few minor flooding concerns south of I-90. While accumulations are generally expect be between 0.25 to 0.75 for most areas, isolated pockets of over an 1 inch will be possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
246 PM CDT Sat Jun 10 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0235 PM Rain 6 SW Cavour 44.30N 98.12W
06/10/2023 M4.50 inch Beadle SD Public
All low areas filled with water.
&&
JCThe Minneapolis radar (KMPX), 142 km away, was scanning. The volume nearest the first event began at 19:45 UTC.
2 tornado. Local standard time, as filed.
A brief landspout touched down in an open field just east of 560th Avenue and north of Minnesota State Highway 30. This tornado resulted in no visible damage and had no basis for rating.
A brief landspout developed around 1.5 miles west-southwest of Lake Wilson, and was seen and photographed by numerous individuals, despite its brief appearance. The touchdown occurred within an open field and caused no visible damage to determine a rating.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2023Every state in 2023This day in weather historyThe tornado archive for Minnesota, 2023Warnings in Minnesota, June 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1111891, 1111877.