As a weak disturbance acted to focus persistent lower to mid-level warm advection, persistent showers with only a rogue flash of lightning or two blossomed in the high moisture content air mass. Rainfall from 3 to 6 inches was common across a small area of southern Charles Mix and southwest Bon Homme counties, especially between 0500-0900CST.
Every event with a place to put it. Tap one for its entry below.
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.
As a weak disturbance acted to focus persistent lower to mid-level warm advection, persistent showers with only a rogue flash of lightning or two blossomed in the high moisture content air mass. Rainfall from 3 to 6 inches was common across a small area of southern Charles Mix and southwest Bon Homme counties, especially between 0500-0900CST.
The national radar mosaic for the moment the first event began.
4 flood. Local standard time, as filed.
Heavy early morning rainfall resulted in ponding of 1 to 2 feet of water over parking lots in many areas on the west side of Wagner, including across the road from the fire station.
Several inches of water was flowing over South Dakota Highway 50.
Several inches of water ponding over South Dakota Highway 50 east of Ravinia.
After waters had receded earlier in the day, a plugged culvert resulted in extensive ponding of water along South Dakota Highway 46/50 on the west side of Wagner. Additional flooding was reported near 5th Street on the south side of Wagner, near the location of the plugged culvert.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2019Every state in 2019This day in weather historyWarnings in South Dakota, August 2019
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: 852096, 852097, 852098, 852099.