Thunderstorms moved up the James River Valley during the late evening and early morning hours of May 28th and May 29th respectively. Storms occasionally produced wind damage as they moved into the Prairie Coteau region, with a peak wind speed of 74 mph in Lake City.
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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 ABR wrote it up.
Thunderstorms moved up the James River Valley during the late evening and early morning hours of May 28th and May 29th respectively. Storms occasionally produced wind damage as they moved into the Prairie Coteau region, with a peak wind speed of 74 mph in Lake City.
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 Aberdeen, SD wrote its last area forecast discussion before the first event at May 28, 11:26 PM CST, 54 minutes earlier.
Area Forecast Discussion...UPDATED National Weather Service Aberdeen SD 1226 AM CDT Sun May 29 2022 .UPDATE... Issued at 841 PM CDT Sat May 28 2022 Overall the forecast is doing fine. Radar trends over the last half to one hour suggest that most of the activity north of I90 has been on the downward trend. This makes sense based on latest meso data from SPC. The threat of severe at least over the ABR CWA doesn't appear to great for the overnight hours. However, storms along NE/SD border will likely continue to move ne/e through the overnight hours, being supported by subtle wave aloft, and weak to moderate LLJ. There is an instability axis over southern SD, and that will likely be the spot where storms maintain some strength into the mid and late evening hours. Temperatures look fine for now. && .SHORT TERM...(This Evening through Sunday Night) Issued at 339 PM CDT Sat May 28 2022 Ribbon of instability with MLCAPE from 500-1000 J/KG is set up along the SD border with MT/WY. Shortwave energy is working across the Rockies at this time and should start to see more robust convection over the next couple hours developing across eastern MT/WY and moving into western SD. Overall, severe parameters are not overly impressive this evening/overnight. Shear is modest/high, but instability is lacking somewhat. CAMs suggest only a broken line or clusters of storms to be approaching the western CWA between 00Z and 02Z, with mainly a wind threat. Hail certainly possible as well, but seems strong wind is likely the main hazard. Severe threat seems to diminish as any activity moves closer to the James River and points east. Focus will then shift to severe storm potential Sunday afternoon/overnight across the eastern CWA. Surface trough looks to set up over the eastern CWA with moderate instability developing by afternoon. Parameters look a little better Sunday afternoon and evening, but may have to worry about capping issues. CAMs are rather scant with storm coverage Sunday afternoon, but there are still signs of an MCS developing to the south and moving off to the northeast over eastern portions of the CWA. Still many variables and factors playing into this that will ultimately determine this outcome, so more to examine on this for the overnight. .LONG TERM...(Monday through Saturday) Issued at 339 PM CDT Sat May 28 2022 Active weather will persist into the start of this period as the overall weather pattern remains in a favorable setup for continued chances for showers and thunderstorms. This will be most evident on Monday as a portion of the expansive western CONUS trough closes off and treks northeastward toward the Dakotas. A sfc frontal boundary is expected to remain sprawled basically in a north to south fashion across the eastern Dakotas through the day Monday. An area of sfc low pressure is progged to work north and northeast along this boundary in conjunction with upper level energy associated with the aforementioned upper low through the daytime hours. Parts of our eastern forecast zones could be dealing with some leftover convection Monday morning, but this activity should be pushing out of the CWA early in the day. Sfc dew points will remain in the low to mid 60s through the day, especially to the east of where the sfc front sets up. Heating of the day in combination with the ample llvl moisture will lead to MLCAPE values of 1000-2000 J/kg by the afternoon across our eastern zones(I-29 corridor and points east into western MN ). 0-6 KM shear values of at least 50 kts will be more than adequate for storms to fire by later in the afternoon and perhaps linger into early evening. Some of the activity is expected to turn supercellular with large hail and a few tornadoes the main threats with the strongest cells. This activity should shift east and northeast out of our area during the evening hours. Uncertainties remain in the exact placement of storms. Favorable conditions could set up farther west across more of the James Valley or farther east across the SD/MN border area. Details such as this will be ironed out with time. For now, SPC continues to highlight the I-29 corridor with a slight risk for severe storms with an enhanced risk farther east across parts of Big Stone and Traverse Counties in west central MN. The remainder of the period will feature more quiet conditions settling in. We'll see leftover showers on Tuesday as the upper trough/low continues to spiral and push north and northeast away from our area. A cooler, drier air mass will shift in across the area through mid week with temperatures returning to below normal levels. But, we should begin to see some modification through the end of the week with warmer readings returning. && .AVIATION...(For the 06Z TAFS through 06Z Sunday Night) Issued at 1226 AM CDT Sun May 29 2022 Terminals KABR,KATY,KPIR,KMBG Isold to sct showers and storms are possible overnight across northern SD. Meanwhile, MVFR and even some IFR cigs are possible toward morning, then lasting through Sunday morning over northeast SD. Overall, outside of any storms, VFR vsbys are anticipated. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. && UPDATE...TDK SHORT TERM...TMT LONG TERM...Vipond AVIATION...TDK
Hazardous Weather Outlook National Weather Service Aberdeen SD 325 AM CDT Sat May 28 2022 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-290830- Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts- Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant- Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo- 325 AM CDT Sat May 28 2022 /225 AM MDT Sat May 28 2022/ This Hazardous Weather Outlook is for west central Minnesota, central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. Weak high pressure overhead early today, however storms will form in south central and western South Dakota this afternoon and lift rapidly to the northeast. The main threats are hail and strong winds in central South Dakota, with a diminishing threat for severe weather into the overnight hours for north central and eastern South Dakota and western Minnesota. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Another round of potential severe weather is possible Sunday across eastern South Dakota and western Minnesota. Hail and high winds are again the main threats, there is a low potential for tornadoes as well. An additional round of severe weather is also possible Monday, the focus is mainly far eastern South Dakota and western Minnesota. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed this afternoon/evening in central South Dakota, as well as Sunday afternoon/evening and possibly again Monday in eastern South Dakota and western Minnesota. Weather spotters are encouraged to submit reports to the National Weather Service in Aberdeen. The public can submit reports on our web page, Facebook page, or our Twitter feed. Connelly
The Aberdeen radar (KABR), 99 km away, was scanning. The volume nearest the first event began at 06:20 UTC.
6 thunderstorm wind. Local standard time, as filed.
Both a storage garage and a shed were destroyed by estimated 75 mph wind gusts.
One inch tree limbs were broken and shingles were blown off of a roof by estimated 75 mph wind gusts.
Storage buildings were damaged, and hail bailers were tipped by estimated 75 mph winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2022Every state in 2022This day in weather historyWarnings in South Dakota, May 2022
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: 1021191, 1021186, 1021187, 1021189, 1021190, 1021188.