South Dakota, 2019Flooding in South Dakota, April 1 to 30, 2019
April 1 to 30, 2019 · NWS FSD · 19 events in 5 counties and zones
Runoff from precipitation which totaled 2 to 4 inches through mid-April maintained flooding along the Big Sioux River.
Every event with a place to put it. Tap one for its entry below.
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 19
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.
Runoff from precipitation which totaled 2 to 4 inches through mid-April maintained flooding along the Big Sioux River.
What forecasters said that day
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 Mar 31, 9:45 PM CST, 2 hours 15 minutes earlier.
Area forecast discussion, Mar 31, 9:45 PM CST, 2 hours 15 minutes before
AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
1045 PM CDT Sun Mar 31 2019
.SHORT TERM...(This Evening through Monday)
Issued at 358 PM CDT Sun Mar 31 2019
Scattered flurries/sprinkles associated with a mid-level shortwave
will continue to move east as it slowly dissipates through the
evening hours. Behind this system, stratus will begin to surge
south into the region during the night. In addition, patchy fog
could develop on the edge of the cloud deck through the morning
hours. Increasing clouds will inhibit lows from dropping much;
therefore lows will range from the mid 20s north of I-90 to the
lower 30s south.
An upper trough/PV advection begins to move into the area by Monday
afternoon, bringing the chance for rain and snow. The main question
will be precipitation type and amounts as some models still
diverge in surface temperatures and low-level dry air. However,
soundings suggest a better environment in the evening with a
saturated layer along with a decent 850 hPa frontogenetic forcing into
the overnight. Given that and dewpoints in the upper 20s and low
30s; scattered flurries and light snow will be possible. Snow
amounts from a couple of tenths to 0.5 are possible. The best
chance for precipitation looks to be along the I-90 corridor into
our farthest east counties in Iowa.
.LONG TERM...(Monday Night through Sunday)
Issued at 358 PM CDT Sun Mar 31 2019
Surface high pressure brings a quiet and breezy day on Tuesday. Have
bumped winds a bit on Tuesday to produce gusty winds from 25 to 30
mph in the afternoon hours.
The next significant chance of precipitation arrives late Tuesday
night into Wednesday as a surface moves over the High Plains from the
Rockies. Models are in good agreement in bringing the bulk of
precipitation mainly along and south of I-90. However, there are
some differences in timing and intensity. The GFS is the fastest
model, with precipitation arriving early Wednesday morning while
the NAM arrives 3-hrs later. On the other hand, the ECMWF looks
mainly dry for our forecast area. Given this, have lowered
precipitation chances for areas along and north of I-90. At this
time, better chances will be along the Missouri River into
northwest Iowa. In terms of precipitation type, rain will be the
dominant type throughout the day, but a mix of rain and snow will
be possible at the onset of precipitation early Wednesday
morning.
A warming trend is expected after Thursday into the weekend as an
upper ridge builds in from the west and warmer southerly winds
surge northward into the region. Highs in the upper 50s and 60s
looks possible during the weekend.
&&
.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1041 PM CDT Sun Mar 31 2019
Areas of low stratus will drift southward tonight, affecting KHON,
and possibly KFSD toward 12Z. Ceilings are expected to lift by
mid morning on Monday. Light rain will then move in by later on
Monday afternoon and continue into Monday evening. Rain may mix
with or change to snow briefly before ending later in the evening.
&&
.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&
SHORT TERM...05
LONG TERM...05
AVIATION...JM
Flood, Brookings
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Brookings County, 8.34 mi NNW of Bruce to 7.91 mi N of Bruce
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.544, -96.937
Runoff from occasional precipitation in late March and April maintained moderate flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Estelline (gage site BSES2) crested twice during the month. The first crest was 1.93 feet above flood stage on April 1, with a second crest at 2.16 feet above flood stage on April 19. Moderate flooding continued at the end of the month.
Flood, Brookings
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Brookings County, 8.56 mi NNW of Bruce to 7.62 mi W of Bruce
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.540, -96.960
Runoff from occasional precipitation in late March and April maintained moderate flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Bruce (gage site BRCS2) crested at 2.42 feet above flood stage on April 1. Moderate flooding continued at the end of the month.
Flood, Moody
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Moody County, 12.93 mi NW of Flandreau to 13.36 mi NW of Flandreau
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.170, -96.780
Runoff from occasional precipitation in late March and April maintained moderate flooding of agricultural and pasture lands near the Big Sioux River. Numerous county and township roads were impacted by water, including 473rd Avenue north of the gage, 475th Avenue near 222nd, and 221st Street between 468th and 469th Avenue. The Big Sioux River near Brookings (gage site BRKS2) crested twice at major flood stage during the month. The first crest was 3.45 feet above flood stage on April 1, with a second crest at 3.47 feet above flood stage on April 19. Moderate flooding continued at the end of the month.
Flood, Moody
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Moody County, 5.26 mi NW of Flandreau to 3.45 mi NW of Flandreau
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.100, -96.660
Runoff from occasional precipitation in late March and April maintained flooding of agricultural and pasture lands near the Big Sioux River, as well as some county and township roads near Flandreau Park. The Big Sioux River above Flandreau (gage site BSFS2) crested at 2.48 feet above flood stage on April 1. Minor flooding continued at the end of the month.
Flood, Moody
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Moody County, 2.98 mi W of Flandreau to 1.47 mi N of Egan
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.050, -96.640
Runoff from occasional precipitation in late March and April maintained flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Egan (gage site EGAS2) crested twice at moderate flood stage during the month. The first crest was 4.39 feet above flood stage on April 1, with a second crest at 4.52 feet above flood stage on April 20. Moderate flooding continued at the end of the month.
Flood, Moody
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Moody County, 1.47 mi SSE of Lone Tree to 2.76 mi SSW of Trent
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.960, -96.720
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. Waters approached a few homes in Trent, with also inundated 478th Avenue and 242nd Street. The Big Sioux River at Trent (gage site TRES2) crested at 3.66 feet above flood stage on April 1. Moderate flooding continued at the end of the month.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Minnehaha County, 4.06 mi SSW of Trent to 3.72 mi SSW of Trent
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.848, -96.688
Runoff from occasional precipitation in late March and April maintained moderate flooding of agricultural and pasture lands near the Big Sioux River. Water inundated the City Park and baseball fields in Dell Rapids. A few homes in Dell Rapids were surrounded by water with residents evacuated for several days near the crest times. The Big Sioux River above Dell Rapids (gage site DRBS2) crested twice at moderate flood stage during the month. The first crest was 4.40 feet above flood stage on April 1, with a second crest at 3.64 feet above flood stage on April 20. Minor flooding continued at the end of the month.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Minnehaha County, 1 mi W of Dell Rapids to 0.69 mi NNW of Baltic
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.820, -96.740
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. Numerous county and township roads were flooded near the river, including 250th Street west of Baltic. The Big Sioux River near Dell Rapids (gage site DERS2) crested twice at moderate flood stage during the month. The first crest was 2.82 feet above flood stage on April 1, with a second crest at 2.47 feet above flood stage on April 20. Minor flooding continued at the end of the month.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Minnehaha County, 3.14 mi NNW of Renner to 2.94 mi SW of Renner
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.690, -96.760
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River at Sioux Falls Interstate 90 (gage site SFLS2) crested twice at moderate flood stage during the month. The first crest was 4.19 feet above flood stage on April 1, with a second crest at 3.80 feet above flood stage on April 22. Moderate flooding continued at the end of the month.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 2, 5:00 PM CST
- Where
- Minnehaha County, 1.5 mi W of South Sioux Falls to 0.85 mi SSW of South Sioux Falls
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.520, -96.780
Runoff from occasional precipitation in late March maintained flooding of city park areas in Sioux Falls along the Big Sioux River. The Big Sioux River at Sioux Falls Western Avenue (gage site WAVS2) crested at 0.73 feet above flood stage on April 1.
Flood, Lincoln
- When
- April 1, 12:00 AM CST to April 2, 5:00 PM CST
- Where
- Lincoln County, 2.57 mi SW of Sioux Falls to 2.14 mi SSW of Sioux Falls
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.500, -96.760
Runoff from occasional precipitation in late March maintained flooding of city park areas in Sioux Falls along the Big Sioux River. The Big Sioux River at Sioux Falls Western Avenue (gage site WAVS2) crested at 0.73 feet above flood stage on April 1.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Minnehaha County, 1.38 mi S of Norton Acres to Norton Acres
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.560, -96.720
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural land near the Big Sioux River east of Sioux Falls. The Big Sioux River at Sioux Falls North Cliff Avenue (gage site SXFS2) crested twice at moderate flood stage during the month. The first crest was 4.58 feet above flood stage on April 1, with a second crest at 3.77 feet above flood stage on April 22. Minor flooding continued at the end of the month.
Flood, Minnehaha
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Minnehaha County, 2.6 mi WNW of Brandon to 3 mi W of Brandon
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.590, -96.650
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Brandon (gage site BBSS2) crested at 5.18 feet above flood stage on April 1. Moderate flooding continued at the end of the month.
Flood, Lincoln
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Lincoln County, 2.47 mi NNE of Shindler to 3.28 mi SSE of Shindler
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.500, -96.623
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Brandon (gage site BBSS2) crested at 5.18 feet above flood stage on April 1. Moderate flooding continued at the end of the month.
Flood, Lincoln
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Lincoln County, 4.2 mi N of Canton Muni Arpt to 4.98 mi N of Canton
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.380, -96.557
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River above Canton (gage site CBSS2) crested twice during the month. The first crest at 4.91 feet above flood stage occurred on April 1. The second crested briefly in major flood stage at 5.49 feet above flood stage on April 8. Minor flooding continued at the end of the month.
Flood, Lincoln
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Lincoln County, 6.66 mi NNW of Hudson to 6.64 mi NNW of Hudson
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.218, -96.524
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River at Fairview (gage site FVWS2) crested at 5.38 feet above flood stage on April 9. Minor flooding continued at the end of the month.
Flood, Union
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Union County, 6.93 mi NE of Alcester to 10.62 mi SE of Big Spgs
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.080, -96.540
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River above Hawarden (gage site HWDI4) crested at 7.19 feet above flood stage on April 9. Moderate flooding continued at the end of the month.
Flood, Union
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Union County, 1.71 mi SE of Big Spgs to 3.54 mi NW of Richland
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 42.910, -96.580
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River, as well as several county roads near the river. The Big Sioux River at Akron (gage site AKRI4) crested at 3.88 feet above flood stage on April 10. Moderate flooding continued at the end of the month.
Flood, Union
- When
- April 1, 12:00 AM CST to April 30, 11:59 PM CST
- Where
- Union County, 0.86 mi NW of Richland to 0.37 mi NNE of Elk Pt
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 42.780, -96.640
Runoff from occasional precipitation in late March and April maintained significant flooding of agricultural and pasture lands near the Big Sioux River. The Big Sioux River near Richland (gage site BSRS2) crested at 3.77 feet above flood stage on April 10. Moderate flooding continued at the end of the month.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flooding in Iowa, April 1 to 30, 2019$100 million · 2 events
- Flooding in South Dakota, April 1 to 30, 20191 death · 10 events
- Flooding in Illinois, April 1 to 30, 20191 death · 7 events
- Flood in South Dakota, April 1 to 23, 2019$20 million · 1 event
- Flooding in South Dakota, April 1 to 30, 2019$5.8 million · 26 events
- Flooding in Minnesota, April 1 to 30, 2019$1.1 million · 7 events
- Flooding in Minnesota, April 1 to 22, 2019$150,000 · 3 events
- Flash Flooding and Avalanche in California, April 1 to 5, 2019$61,000 · 10 events
- Flooding in Illinois, April 1 to 30, 2019$50,000 · 2 events
- Flooding in Missouri, April 1 to 30, 2019$31,000 · 2 events
- Frost and Freeze in Kentucky, April 1, 201922 events
- Frost and Freeze in Illinois, April 1, 201919 events
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 2026-10-01. Each event’s entry at NCEI: 832714, 832715, 832716, 832717, 832718, 832719, 832720, 832721, 832722, 832723, 832724, 832725, 832726, 832727, 832731, 832735, 832736, 832739, 832740.