Alert archive / South Dakota / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 65, NWS Sioux Falls, SD

June 21, 20245 counties in South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 21, 2024, 1:34 PM CDT for 5 counties in South Dakota. It was in force for 41 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 21, 2024, 1:34 PM CDT (18:34 UTC)
Expired
Jun 21, 2024, 2:15 PM CDT
In force
41 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Aurora County, SD, Charles Mix County, SD, Davison County, SD, Douglas County, SD, Hutchinson County, SD

The radar

The Sioux Falls radar (KFSD), 143 km from the middle of the area, began a volume at 18:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 21, 1:40 PM CDTHAIL 0.887 N Lake Andes, SD
Jun 21, 1:42 PM CDTHAIL 0.757 Nne Lake Andes, SD
Jun 21, 1:48 PM CDTHAIL 0.887 Wsw Armour, SDVery brief hail, mostly smaller than nickel.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 6.6 hours before the alert went out and 177 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2024-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2024-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
652 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

354 
WUUS53 KFSD 211834
SVRFSD
SDC003-023-035-043-067-211915-
/O.NEW.KFSD.SV.W.0065.240621T1834Z-240621T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
134 PM CDT Fri Jun 21 2024

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  Southwestern Davison County in southeastern South Dakota...
  Southeastern Aurora County in south central South Dakota...
  Central Charles Mix County in south central South Dakota...
  Douglas County in south central South Dakota...
  West central Hutchinson County in southeastern South Dakota...

* Until 215 PM CDT.

* At 134 PM CDT, a severe thunderstorm was located near Geddes, or 8
  miles northwest of Lake Andes, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Armour, Corsica, and Harrison around 145 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4314 9865 4331 9879 4362 9821 4332 9797
TIME...MOT...LOC 1834Z 240DEG 35KT 4326 9861 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Meyers
3 follow-up statements
463 
WWUS53 KFSD 211841
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
141 PM CDT Fri Jun 21 2024

SDC003-211850-
/O.CAN.KFSD.SV.W.0065.000000T0000Z-240621T1915Z/
Aurora SD-
141 PM CDT Fri Jun 21 2024

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN AURORA COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4334 9871 4350 9835 4350 9833 4351 9832
      4358 9818 4356 9815 4332 9797 4315 9857
      4316 9860
TIME...MOT...LOC 1840Z 241DEG 31KT 4327 9857 

$$

SDC023-035-043-067-211915-
/O.CON.KFSD.SV.W.0065.000000T0000Z-240621T1915Z/
Davison SD-Charles Mix SD-Douglas SD-Hutchinson SD-
141 PM CDT Fri Jun 21 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR SOUTHWESTERN DAVISON...NORTHEASTERN CHARLES MIX...DOUGLAS AND
WEST CENTRAL HUTCHINSON COUNTIES...

At 140 PM CDT, a severe thunderstorm was located near Geddes, or 7
miles north of Lake Andes, moving northeast at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Armour around 145 PM CDT.
  Corsica around 150 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4334 9871 4350 9835 4350 9833 4351 9832
      4358 9818 4356 9815 4332 9797 4315 9857
      4316 9860
TIME...MOT...LOC 1840Z 241DEG 31KT 4327 9857 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Meyers
398 
WWUS53 KFSD 211853
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
153 PM CDT Fri Jun 21 2024

SDC023-035-043-067-211915-
/O.CON.KFSD.SV.W.0065.000000T0000Z-240621T1915Z/
Davison SD-Charles Mix SD-Douglas SD-Hutchinson SD-
153 PM CDT Fri Jun 21 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR SOUTHWESTERN DAVISON...NORTHEASTERN CHARLES MIX...DOUGLAS AND
WEST CENTRAL HUTCHINSON COUNTIES...

At 153 PM CDT, a severe thunderstorm was located near Armour, or 13
miles northeast of Lake Andes, moving northeast at 40 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

This severe storm will be near...
  Armour and Corsica around 200 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4322 9844 4338 9854 4350 9834 4350 9833
      4351 9832 4358 9818 4356 9815 4332 9797
      4328 9811
TIME...MOT...LOC 1853Z 241DEG 36KT 4333 9840 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Meyers
213 
WWUS53 KFSD 211907
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
207 PM CDT Fri Jun 21 2024

SDC023-035-043-067-211916-
/O.EXP.KFSD.SV.W.0065.000000T0000Z-240621T1915Z/
Davison SD-Charles Mix SD-Douglas SD-Hutchinson SD-
207 PM CDT Fri Jun 21 2024

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DAVISON...
NORTHEASTERN CHARLES MIX...DOUGLAS AND WEST CENTRAL HUTCHINSON
COUNTIES WILL EXPIRE AT 215 PM CDT...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 4322 9844 4338 9854 4350 9834 4350 9833
      4351 9832 4358 9818 4356 9815 4332 9797
      4328 9811
TIME...MOT...LOC 1906Z 240DEG 35KT 4338 9828 

$$

Meyers

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 21, 12:50 PM CDT, 44 minutes earlier. Its key messages:

  • Another round of heavy rain is likely tonight with the development of another MCS. Probabilities of over 2 inches of rain are around 60-80%, focused generally south of a Sioux Falls to Jackson MN line and north of US-18.
  • The Flood Watch has been expanded southward a bit in Iowa to include Plymouth, Cherokee and Buena Vista Counties.
  • Extensive river flooding will develop over the next day or two, with best chances of reaching major flood stage on parts of the James, Vermillion and Big Sioux Rivers.
Area forecast discussion, Jun 21, 12:50 PM CDT, 44 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
1250 PM CDT Fri Jun 21 2024

.KEY MESSAGES...

- Another round of heavy rain is likely tonight with the
  development of another MCS. Probabilities of over 2 inches of
  rain are around 60-80%, focused generally south of a Sioux
  Falls to Jackson MN line and north of US-18.

- The Flood Watch has been expanded southward a bit in Iowa to
  include Plymouth, Cherokee and Buena Vista Counties.

- Extensive river flooding will develop over the next day or
  two, with best chances of reaching major flood stage on parts
  of the James, Vermillion and Big Sioux Rivers.

&&

.DISCUSSION...
Issued at 425 AM CDT Fri Jun 21 2024

Through Saturday:

Expansive MCS that produced widespread 3 to 6 inch rains across
the heart of the forecast area has shifted eastward early this
morning, with the heaviest rain in northwest Iowa as of 4 am.
However, numerous flash flood warnings continue along the I-90
corridor and in the row of counties south of there.

Latest surface map shows the stationary front draped across
northern Nebraska to about the US-18 corridor in northwest Iowa.
High-res models continue to show convection redeveloping near it
through the afternoon, then another MCS firing later this
afternoon and moving through the forecast area this evening.
Precipitable water values remain highly anomalous into tonight
for the area (around 1.9 inches, near record territory for this
time of year per Aberdeen/Huron sounding climatology). As one
might imagine, flash flood guidance is extremely low in the
areas that have been pounded overnight, but is around 1.5 inches
a little further south toward Sioux City. The Flood Watch has
been expanded a bit further to include Plymouth, Cherokee and
Buena Vista Counties in Iowa. Probabilities of seeing another 2
inches of rain are high (60-80%), though the exact alignment is
a bit uncertain given the ongoing activity. NBM guidance would
favor more of an area near and north of I-90, while the HREF
begins to shift it more near and south of the MN/IA border. Much
of the rain should be out of the forecast area by midday
Saturday, though lingering into the afternoon east of I-29.

Sunday through Thursday:

A couple welcome days to dry out are expected to start the new
week, as upper level ridging slides across the Plains. Once we
get to Monday night and Tuesday, global models are in agreement
with a strong upper low moving across the Lake Winnipeg region,
drawing more of a northwest flow into the Dakotas. The
associated surface cold front moves through Monday night and
Tuesday morning, though the general trend suggests the heaviest
rain amounts more to the north and northeast of the forecast
area. Temperatures are expected to peak on Monday in the lower
90s, but drop off by mid week to the upper 70s near the Buffalo
Ridge and mid 80s along the Missouri River.

&&

.AVIATION /18Z TAFS THROUGH 18Z SATURDAY/...
Issued at 1215 PM CDT Fri Jun 21 2024

Band of elevated showers and thunderstorms will continue to
slowly progress northward this afternoon. Broad area of MVFR to
IFR ceilings persists along and north of this boundary, and will
continue to fill in through the afternoon.

We'll turn out attention to convection risks south of I-90 by
mid-late afternoon, with this convection rolling through areas
into the overnight hours. Some uncertainty on where the
greatest risks present themselves, but current thoughts are
along and south of I-90. Brief reductions in both visibility and
ceilings in convection are expected.

Rain risks continue through daybreak Saturday, with some modest
improvement of ceilings and visibility through the morning
hours.

&&

.HYDROLOGY...
Issued at 425 AM CDT Fri Jun 21 2024

MRMS rainfall estimates since about mid afternoon Thursday show
a substantial area of 3 to 4 inches of rain across the heart of
the forecast area, with upwards of 6 inches across Turner and
Lincoln Counties in SD and and Lyon County IA. With this amount
of water and another slug of hefty rain amounts expected
tonight, moderate to major flooding is likely to develop over
the next couple days along parts of the James, Vermillion, and
Big Sioux Rivers.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Flood Watch through Saturday morning for SDZ038>040-050-
     052>071.
MN...Flood Watch through Saturday morning for MNZ071-072-080-081-
     089-090-097-098.
IA...Flood Watch through Saturday morning for IAZ001>003-012>014-
     020>022.
NE...Flood Watch through Saturday morning for NEZ013.

&&

DISCUSSION...Meyers
AVIATION...Dux
HYDROLOGY...Meyers
Hazardous weather outlook, Jun 20, 6:31 PM CDT, 19 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
631 PM CDT Thu Jun 20 2024

SDZ050-057-058-063-064-212345-
Gregory-Brule-Aurora-Charles Mix-Douglas-
631 PM CDT Thu Jun 20 2024

This Hazardous Weather Outlook is for south central South Dakota.

.DAY ONE...Tonight.

Another round of showers and storms is expected to spread in from
central South Dakota tonight. There is a low risk of severe storms
this evening, and heavy downpours may lead to flash flooding
overnight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Another round of showers and storms is likely Friday night with
scattered strong to severe storms possible. All hazards are possible
with storms Friday night, including flash flooding.

By Saturday, a widespread 1 to 3 inches of rain is expected with
isolated amounts of 5 or more inches. Multiple periods of locally
heavy rainfall means ponding of water and rises in area streams and
creeks are expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

IAZ001-MNZ071-072-080-081-089-090-097-098-SDZ038>040-052>056-059>062-
065>070-212345-
Lyon-Lincoln-Murray-Cottonwood-Nobles-Jackson-Pipestone-Rock-Beadle-
Kingsbury-Brookings-Jerauld-Sanborn-Miner-Lake-Moody-Davison-Hanson-
McCook-Minnehaha-Hutchinson-Turner-Bon Homme-Yankton-Clay-
631 PM CDT Thu Jun 20 2024

This Hazardous Weather Outlook is for northwest Iowa, southwest
Minnesota, central South Dakota, east central South Dakota and
southeast South Dakota.

.DAY ONE...Tonight.

Another round of showers and storms is expected to spread in from
central South Dakota tonight. While severe storms are not expected at
this time, heavy downpours may lead to flash flooding overnight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Another round of showers and storms is likely Friday night with
scattered strong to severe storms possible. All hazards are possible
with storms Friday night, including flash flooding.

By Saturday, a widespread 2 to 4 inches of rain i4s expected with
isolated amounts of 6 or more inches. Multiple periods of locally
heavy rainfall means ponding of water and rises in area streams and
creeks are expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed.

IAZ002-003-012>014-020>022-031-032-NEZ013-014-SDZ071-212345-
Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee-Buena Vista-
Woodbury-Ida-Dixon-Dakota-Union-
631 PM CDT Thu Jun 20 2024

This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa, northeast Nebraska and southeast South Dakota.

.DAY ONE...Tonight.

Another round of showers and storms may spread in from central South
Dakota and Nebraska tonight. Severe weather is not expected at this
time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Another round of showers and storms may track through the region
Friday night with isolated strong to severe storms possible. All
hazards are possible with storms Friday night, including flash
flooding.

By Saturday, a widespread 1 to 2 inches of rain is expected with
isolated amounts of 3 or more inches. Multiple periods of locally
heavy rainfall means ponding of water and rises in area streams and
creeks are expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jun 21, 7:38 AM CDT, 5 hours 56 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
738 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 AM     Rain             1 W Canton              43.30N 96.60W
06/21/2024  M7.60 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-43 Canton 1.2 W.

0600 AM     Rain             Hurley                  43.28N 97.09W
06/21/2024  M6.28 Inch       Turner             SD   Cocorahs

            Cocorahs station SD-TR-9 Hurley 0.2 S.

0700 AM     Rain             2 S Pukwana             43.75N 99.18W
06/21/2024  M6.15 Inch       Brule              SD   Cocorahs

            Cocorahs station SD-BL-11 Pukwana 1.9 S.

0700 AM     Rain             3 NE Lennox             43.38N 96.85W
06/21/2024  M6.10 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-12 Lennox 3.3 NE.

0700 AM     Rain             3 ESE Lester            43.42N 96.28W
06/21/2024  M5.45 Inch       Lyon               IA   Cocorahs

            Cocorahs station IA-LY-11 Rock Rapids 5.6 W.

0700 AM     Rain             2 NE Fulton             43.75N 97.79W
06/21/2024  M5.13 Inch       Hanson             SD   Cocorahs

            Cocorahs station SD-HN-8 Alexandria 6.4 N.

0700 AM     Rain             5 ESE Crooks            43.62N 96.72W
06/21/2024  M5.05 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-92 Sioux Falls 5.5 N.

0700 AM     Rain             5 SSE Baltic            43.69N 96.71W
06/21/2024  M5.04 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-115 Renner 3.0 N.

0700 AM     Rain             1 NNW Tea               43.46N 96.84W
06/21/2024  M5.02 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-26 Tea 1.1 NNW.

0640 AM     Rain             6 NW Montrose           43.77N 97.25W
06/21/2024  M4.97 Inch       McCook             SD   Cocorahs

            Cocorahs station SD-MC-1 Montrose 5.8 NW.

0700 AM     Rain             3 NE Crooks             43.69N 96.78W
06/21/2024  M4.85 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-71 Renner 4.1 NW.

0700 AM     Rain             4 NNE Tea               43.51N 96.81W
06/21/2024  M4.84 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-111 Sioux Falls 4.9
            WSW.

0641 AM     Rain             1 NNE Harrisburg        43.44N 96.69W
06/21/2024  M4.68 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-35 Harrisburg 0.7
            NNE.

0700 AM     Rain             3 W Sioux Falls         43.54N 96.79W
06/21/2024  M4.63 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-117 Sioux Falls 3.3
            W.

0600 AM     Rain             4 NW Sioux Falls        43.58N 96.79W
06/21/2024  M4.56 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-136 Sioux Falls 3.7
            NW.

0700 AM     Rain             1 NE Montrose           43.71N 97.17W
06/21/2024  M4.53 Inch       McCook             SD   Cocorahs

            Cocorahs station SD-MC-17 Montrose 0.7 NE.

0700 AM     Rain             6 WNW Garretson         43.74N 96.61W
06/21/2024  M4.50 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-119 Garretson 5.8
            WNW.

0700 AM     Rain             2 E Montrose            43.70N 97.14W
06/21/2024  M4.45 Inch       McCook             SD   Cocorahs

            Cocorahs station SD-MC-12 Montrose 2.4 E.

0700 AM     Rain             5 S Marion              43.35N 97.26W
06/21/2024  M4.29 Inch       Turner             SD   Cocorahs

            Cocorahs station SD-TR-2 Parker 6.8 WSW.

0600 AM     Rain             2 SW Sioux Falls        43.53N 96.75W
06/21/2024  M4.22 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-105 Sioux Falls 1.6
            SW.

0700 AM     Rain             4 WSW Sioux Falls       43.53N 96.81W
06/21/2024  M4.19 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-43 Sioux Falls 4.2
            WSW.

0700 AM     Rain             4 WSW Sioux Falls       43.53N 96.81W
06/21/2024  M4.17 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-59 Sioux Falls 4.1
            WSW.

0700 AM     Rain             6 NNW Ethan             43.63N 98.01W
06/21/2024  M4.11 Inch       Davison            SD   Cocorahs

            Cocorahs station SD-DV-28 Mitchell 7.3 S.

0700 AM     Rain             4 WNW Rowena            43.55N 96.63W
06/21/2024  M4.06 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-82 Sioux Falls 5.2 E.

0700 AM     Rain             2 SSW Sioux Falls       43.52N 96.75W
06/21/2024  M4.03 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-40 Sioux Falls 1.9
            SSW.

0710 AM     Rain             Fulda                   43.87N 95.60W
06/21/2024  M4.00 Inch       Murray             MN   Cocorahs

            Cocorahs station MN-MY-15 Fulda 0.3 NNE.

0700 AM     Rain             Hills                   43.53N 96.36W
06/21/2024  M4.00 Inch       Rock               MN   Cocorahs

            Cocorahs station MN-RK-5 Hills 0.2 NW.

0700 AM     Rain             1 WSW Crooks            43.66N 96.82W
06/21/2024  M3.95 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-89 Crooks 0.7 WSW.

0600 AM     Rain             4 NE Tea                43.48N 96.77W
06/21/2024  M3.95 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-28 Sioux Falls 4.6
            SSW.

0700 AM     Rain             4 E Montrose            43.70N 97.11W
06/21/2024  M3.93 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-112 Montrose 3.7 E.

0645 AM     Rain             5 W Garretson           43.72N 96.61W
06/21/2024  M3.90 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-113 5 W Garretson.

0600 AM     Rain             4 ENE Tea               43.48N 96.76W
06/21/2024  M3.90 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-20 Sioux Falls 4.5
            SSW.

0700 AM     Rain             5 SSW Wentworth         43.94N 97.01W
06/21/2024  M3.84 Inch       Lake               SD   Cocorahs

            Cocorahs station SD-LK-12 Wentworth 4.7 SSW.

0600 AM     Rain             3 S Sioux Falls         43.50N 96.72W
06/21/2024  M3.80 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-127 Sioux Falls 3.0
            S.

0700 AM     Rain             4 SSE Garretson         43.66N 96.47W
06/21/2024  M3.77 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-78 Garretson 4.2 SSE.

0700 AM     Rain             1 NE Sioux Falls        43.55N 96.72W
06/21/2024  M3.73 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-121 Sioux Falls 0.7
            NE.

0640 AM     Rain             4 SE Sioux Falls        43.50N 96.67W
06/21/2024  M3.69 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-85 Sioux Falls 4.0
            SE.

0700 AM     Rain             2 SE Sioux Falls        43.53N 96.71W
06/21/2024  M3.68 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-130 Sioux Falls 1.5
            SE.

0600 AM     Rain             2 E Brandon             43.59N 96.55W
06/21/2024  M3.67 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-123 Brandon 1.6 E.

0630 AM     Rain             3 E Sioux Falls         43.55N 96.66W
06/21/2024  M3.64 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-110 Sioux Falls 3.3
            E.

0700 AM     Rain             5 NNW Tripp             43.30N 97.99W
06/21/2024  M3.62 Inch       Hutchinson         SD   Cocorahs

            Cocorahs station SD-HT-2 Parkston 6.6 S.

0700 AM     Rain             1 NNW Sibley            43.41N 95.75W
06/21/2024  M3.62 Inch       Osceola            IA   Cocorahs

            Cocorahs station IA-OS-4 Sibley 0.9 NNW.

0600 AM     Rain             Hartford                43.63N 96.94W
06/21/2024  M3.58 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-46 Hartford 0.5 N.

0600 AM     Rain             1 SSE Milford           43.31N 95.14W
06/21/2024  M3.58 Inch       Dickinson          IA   Cocorahs

            Cocorahs station IA-DK-12 Milford 1.0 SSE.

0600 AM     Rain             3 E Sioux Falls         43.55N 96.66W
06/21/2024  M3.57 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-96 Sioux Falls 3.3 E.

0700 AM     Rain             4 SSE Sioux Falls       43.49N 96.71W
06/21/2024  M3.52 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-32 Sioux Falls 3.6
            SSE.

0700 AM     Rain             4 NE Colton             43.82N 96.87W
06/21/2024  M3.47 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-125 Dell Rapids 7.6
            W.

0700 AM     Rain             5 S Adrian              43.56N 95.93W
06/21/2024  M3.41 Inch       Nobles             MN   Cocorahs

            Cocorahs station MN-NB-15 Adrian 4.8 S.

0655 AM     Rain             1 ESE West Okoboji      43.35N 95.14W
06/21/2024  M3.37 Inch       Dickinson          IA   Cocorahs

            Cocorahs station IA-DK-15 Milford 1.4 NNE.

0700 AM     Rain             3 ESE Sioux Falls       43.52N 96.67W
06/21/2024  M3.34 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-1 Sioux Falls 5.0 SE
            ARPT.

0700 AM     Rain             3 S Chandler            43.89N 95.94W
06/21/2024  M3.33 Inch       Murray             MN   Cocorahs

            Cocorahs station MN-MY-13 Chandler 2.7 SSE.

0615 AM     Rain             2 WSW Garretson         43.71N 96.53W
06/21/2024  M2.98 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-91 Garretson 1.7 WSW.

0600 AM     Rain             Edgerton                43.87N 96.13W
06/21/2024  M2.90 Inch       Pipestone          MN   Cocorahs

            Cocorahs station MN-PS-6 Edgerton 0.2 WSW.

0600 AM     Rain             9 SSW Wessington Spring 43.95N 98.62W
06/21/2024  M2.87 Inch       Jerauld            SD   Cocorahs

            Cocorahs station SD-JR-8 Wessington Springs
            9.3 SSW.

0700 AM     Rain             2 SW Worthington        43.61N 95.63W
06/21/2024  M2.86 Inch       Nobles             MN   Cocorahs

            Cocorahs station MN-NB-7 Worthington 1.9 SW.

0700 AM     Rain             Brewster                43.70N 95.47W
06/21/2024  M2.84 Inch       Nobles             MN   Cocorahs

            Cocorahs station MN-NB-11 Brewster 0.1 SW.

0700 AM     Rain             3 SSE Wilder            43.79N 95.18W
06/21/2024  M2.81 Inch       Jackson            MN   Cocorahs

            Cocorahs station MN-JC-4 Lakefield 7.8 N.

0700 AM     Rain             4 S Worthington         43.57N 95.61W
06/21/2024  M2.74 Inch       Nobles             MN   Cocorahs

            Cocorahs station MN-NB-8 Worthington 4.0 S.

0700 AM     Rain             4 SW Stickney           43.55N 98.49W
06/21/2024  M2.65 Inch       Aurora             SD   Cocorahs

            Cocorahs station SD-AR-8 Stickney 3.8 SW.

0700 AM     Rain             1 SSW Slayton           43.98N 95.76W
06/21/2024  M2.49 Inch       Murray             MN   Cocorahs

            Cocorahs station MN-MY-11 Slayton 0.8 SSW.

0700 AM     Rain             11 N Colman             44.14N 96.80W
06/21/2024  M2.42 Inch       Moody              SD   Cocorahs

            Cocorahs station SD-MY-11 Colman 10.6 N.

0700 AM     Rain             1 NNE Lakefield         43.69N 95.16W
06/21/2024  M2.41 Inch       Jackson            MN   Cocorahs

            Cocorahs station MN-JC-3 Lakefield 0.9 NNE.

0715 AM     Rain             1 S Huron               44.35N 98.22W
06/21/2024  M2.40 Inch       Beadle             SD   Cocorahs

            Cocorahs station SD-BD-20 Huron 1.3 S.

0700 AM     Rain             3 SW Okabena            43.70N 95.36W
06/21/2024  M2.31 Inch       Jackson            MN   Cocorahs

            Cocorahs station MN-JC-12 Okabena 3.1 SW.

0700 AM     Rain             7 NNE Chamberlain       43.90N 99.25W
06/21/2024  M2.19 Inch       Brule              SD   Cocorahs

            Cocorahs station SD-BL-13 Chamberlain 7.5
            NNE.

0721 AM     Rain             5 SSW Aurora            44.21N 96.72W
06/21/2024  M2.03 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-67 Brookings 7.5 SSE.

0700 AM     Rain             3 ESE Yankton           42.88N 97.34W
06/21/2024  M1.98 Inch       Yankton            SD   Cocorahs

            Cocorahs station SD-YN-9 Yankton 2.8 ESE.

0700 AM     Rain             7 NNW White             44.53N 96.69W
06/21/2024  M1.98 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-39 Toronto 3.9 SW.

0700 AM     Rain             3 S Okabena             43.69N 95.31W
06/21/2024  M1.95 Inch       Jackson            MN   Cocorahs

            Cocorahs station MN-JC-8 Okabena 3.2 S.

0613 AM     Rain             2 N Lake Andes          43.19N 98.54W
06/21/2024  M1.90 Inch       Charles Mix        SD   Cocorahs

            Cocorahs station SD-CM-21 Lake Andes 2.4 N.

0700 AM     Rain             Volga                   44.32N 96.92W
06/21/2024  M1.86 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-64 Volga 0.4 E.

0700 AM     Rain             6 SSW Herrick           43.04N 99.23W
06/21/2024  M1.84 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-18 Burke 10.5 SSE.

0700 AM     Rain             5 SSW Lake Benton       44.20N 96.34W
06/21/2024  M1.80 Inch       Lincoln            MN   Cocorahs

            Cocorahs station MN-LN-6 Pipestone 14.3 N.

0700 AM     Rain             Yankton                 42.89N 97.39W
06/21/2024  M1.79 Inch       Yankton            SD   Cocorahs

            Cocorahs station SD-YN-23 Yankton 0.3 ENE.

0700 AM     Rain             De Smet                 44.38N 97.55W
06/21/2024  M1.79 Inch       Kingsbury          SD   Cocorahs

            Cocorahs station SD-KY-5 De Smet 0.2 SSE.

0600 AM     Rain             6 N Ireton              43.05N 96.33W
06/21/2024  M1.78 Inch       Sioux              IA   Cocorahs

            Cocorahs station IA-SX-15 Ireton 5.5 N.

0700 AM     Rain             6 SE Tabor              42.89N 97.57W
06/21/2024  M1.69 Inch       Yankton            SD   Cocorahs

            Cocorahs station SD-YN-26 Yankton 9.1 W.

0700 AM     Rain             4 SE Bruce              44.40N 96.83W
06/21/2024  M1.69 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-56 Brookings 6.5 NNW.

0700 AM     Rain             Orange City             43.01N 96.06W
06/21/2024  M1.68 Inch       Sioux              IA   Cocorahs

            Cocorahs station IA-SX-12 Orange City 0.4
            NNE.

0700 AM     Rain             5 NNW Bruce             44.51N 96.93W
06/21/2024  M1.65 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-46 Bruce 5.2 NNW.

0700 AM     Rain             Aurora                  44.29N 96.68W
06/21/2024  M1.65 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-44 Aurora 0.3 NE.

0700 AM     Rain             2 SE Balaton            44.21N 95.84W
06/21/2024  M1.62 Inch       Lyon               MN   Cocorahs

            Cocorahs station MN-LY-21 Balaton 2.1 SE.

0700 AM     Rain             1 S Brookings           44.29N 96.79W
06/21/2024  M1.58 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-43 Brookings 1.0 S.

0659 AM     Rain             Aurora                  44.29N 96.69W
06/21/2024  M1.57 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-59 Aurora 0.3 NNE.

0600 AM     Rain             1 NW Brookings          44.32N 96.81W
06/21/2024  M1.57 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-54 Brookings 1.4 NW.

0730 AM     Rain             1 SSW Brookings         44.30N 96.79W
06/21/2024  M1.54 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-63 Brookings 0.5 SSW.

0700 AM     Rain             5 N Brookings           44.38N 96.79W
06/21/2024  M1.50 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-41 Brookings 5.3 N.

0700 AM     Rain             4 SW White              44.39N 96.69W
06/21/2024  M1.42 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-27 Aurora 7.5 N.

0600 PM     Rain             1 WSW Crooks            43.66N 96.82W
06/20/2024  M1.40 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-89 Crooks 0.7 WSW.

0700 AM     Rain             9 S Dallas              43.11N 99.50W
06/21/2024  M1.32 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-1 Dallas 8.8 S.

0530 AM     Rain             1 E Le Mars             42.78N 96.15W
06/21/2024  M1.20 Inch       Plymouth           IA   Cocorahs

            Cocorahs station IA-PL-9 Le Mars 1.0 E.

0630 PM     Rain             2 WSW Garretson         43.71N 96.53W
06/20/2024  M1.15 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-91 Garretson 1.7 WSW.

0640 AM     Rain             4 SW Yankton            42.85N 97.45W
06/21/2024  M1.11 Inch       Yankton            SD   Cocorahs

            Cocorahs station SD-YN-17 Yankton 4.1 SW.

0700 AM     Rain             Ghent                   44.51N 95.89W
06/21/2024  M1.04 Inch       Lyon               MN   Cocorahs

            Cocorahs station MN-LY-22 Ghent 0.2 NNE.

&&
Local storm report, Jun 21, 8:36 AM CDT, 4 hours 58 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
836 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     Rain             2 W Worthing            43.33N 96.80W
06/21/2024  M7.40 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-19 Worthing 2.0 W.

0700 AM     Rain             1 SE Mitchell           43.72N 98.02W
06/21/2024  M5.79 Inch       Davison            SD   Cocorahs

            Cocorahs station SD-DV-27 Mitchell 1.0 SE.

0700 AM     Rain             1 N Mitchell            43.75N 98.03W
06/21/2024  M4.75 Inch       Davison            SD   Cocorahs

            Cocorahs station SD-DV-4 Mitchell 1.1 N.

0700 AM     Rain             5 NE Monroe             43.54N 97.15W
06/21/2024  M3.84 Inch       McCook             SD   Cocorahs

            Cocorahs station SD-MC-15 Parker 9.7 N.

0700 AM     Rain             4 ENE Monroe            43.50N 97.14W
06/21/2024  M3.65 Inch       McCook             SD   Cocorahs

            Cocorahs station SD-MC-13 Parker 7.2 N.

0700 AM     Rain             2 W Vilas               44.01N 97.63W
06/21/2024  M3.58 Inch       Miner              SD   Cocorahs

            Cocorahs station SD-MN-11 Howard 5.3 W.

0700 AM     Rain             3 SW Brandon            43.56N 96.63W
06/21/2024  M3.50 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-103 Sioux Falls 5.1
            ENE.

0700 AM     Rain             1 NNW Chamberlain       43.82N 99.33W
06/21/2024  M3.50 Inch       Brule              SD   Cocorahs

            Cocorahs station SD-BL-21 Chamberlain.

0700 AM     Rain             3 SSE Lake Park         43.40N 95.31W
06/21/2024  M3.25 Inch       Dickinson          IA   Cocorahs

            Cocorahs station IA-DK-3 Lake Park 3.2 SSE.

0700 AM     Rain             6 WSW Parkston          43.37N 98.11W
06/21/2024  M2.70 Inch       Hutchinson         SD   Cocorahs

            Cocorahs station SD-DG-4 Parkston 6.5 WSW.

0700 AM     Rain             5 W Armour              43.33N 98.44W
06/21/2024  M2.50 Inch       Douglas            SD   Cocorahs

            Cocorahs station SD-DG-2 Armour 4.6 W.

0730 AM     Rain             8 S Brookings           44.19N 96.79W
06/21/2024  M2.33 Inch       Moody              SD   Cocorahs

            Cocorahs station SD-MY-3 Brookings 8.1 S.

0700 AM     Rain             3 ESE Dixon             43.36N 99.42W
06/21/2024  M2.30 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-3 Gregory 8.7 N.

0700 AM     Rain             3 N Sioux Center        43.11N 96.18W
06/21/2024  M2.22 Inch       Sioux              IA   Cocorahs

            Cocorahs station IA-SX-7 Sioux Center 2.6 N.

0700 AM     Rain             10 W Dimock             43.50N 98.19W
06/21/2024  M2.17 Inch       Douglas            SD   Cocorahs

            Cocorahs station SD-DG-1 Dimock 10.2 W.

0700 AM     Rain             3 SSW Corsica           43.39N 98.42W
06/21/2024  M1.95 Inch       Douglas            SD   Cocorahs

            Cocorahs station SD-DG-3 Corsica 2.8 SSW.

0700 AM     Rain             4 WNW Badger            44.50N 97.29W
06/21/2024  M1.77 Inch       Kingsbury          SD   Cocorahs

            Cocorahs station SD-KY-6 Lake Preston 10.5
            NNE.

0700 AM     Rain             8 SSW Herrick           43.00N 99.23W
06/21/2024  M1.66 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-12 Herrick 8.2 SSW.

0700 AM     Rain             Brookings               44.31N 96.78W
06/21/2024  M1.64 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-66 Brookings 0.3 E.

0700 AM     Rain             2 NNE Yankton           42.91N 97.37W
06/21/2024  M1.50 Inch       Yankton            SD   Cocorahs

            Cocorahs station SD-YN-11 Yankton 1.7 NNE.

0700 AM     Rain             4 W Marshall            44.44N 95.86W
06/21/2024  M1.39 Inch       Lyon               MN   Cocorahs

            Cocorahs station MN-LY-18 Marshall 3.7 W.

&&
Local storm report, Jun 21, 9:02 AM CDT, 4 hours 32 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
902 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     Rain             4 ENE Kimball           43.76N 98.88W
06/21/2024  M5.25 Inch       Brule              SD   Cocorahs

            Cocorahs station SD-BL-8 Kimball 3.9 ENE.

0800 AM     Rain             4 W Monroe              43.49N 97.29W
06/21/2024  M4.40 Inch       Turner             SD   Cocorahs

            Cocorahs station SD-TR-14 Marion 4.8 NNW.

0800 AM     Rain             1 NNE Larchwood         43.47N 96.43W
06/21/2024  M4.39 Inch       Lyon               IA   Cocorahs

            Cocorahs station IA-LY-9 Larchwood 1.2 NNE.

0600 AM     Rain             3 N Sioux Falls         43.59N 96.73W
06/21/2024  M4.26 Inch       Minnehaha          SD   CO-OP Observer

            CO-OP Observer station FSDS2 Sioux Falls
            NWS.

0700 AM     Rain             4 NNW Harrisburg        43.48N 96.73W
06/21/2024  M4.13 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-LN-8 Sioux Falls 4.2 S.

0808 AM     Rain             7 WSW Emery             43.55N 97.75W
06/21/2024  M4.10 Inch       Hanson             SD   Cocorahs

            Cocorahs station SD-HN-18 Alexandria 7.5
            SSE.

0800 AM     Rain             3 S Sioux Falls         43.50N 96.74W
06/21/2024  M4.06 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-131 Sioux Falls 3.0
            S.

0800 AM     Rain             Luverne                 43.66N 96.21W
06/21/2024  M3.94 Inch       Rock               MN   Cocorahs

            Cocorahs station MN-RK-6 Luverne 0.6 NNE.

0800 AM     Rain             Woonsocket              44.05N 98.28W
06/21/2024  M3.91 Inch       Sanborn            SD   Cocorahs

            Cocorahs station SD-SB-3 Woonsocket 0.2 WSW.

0800 AM     Rain             Lake Park               43.45N 95.33W
06/21/2024  M3.81 Inch       Dickinson          IA   Cocorahs

            Cocorahs station IA-DK-6 Lake Park 0.2 N.

0809 AM     Rain             4 S Sioux Falls         43.49N 96.72W
06/21/2024  M3.79 Inch       Lincoln            SD   Cocorahs

            Cocorahs station SD-MH-120 Sioux Falls 3.6
            S.

0806 AM     Rain             4 ESE Sioux Falls       43.52N 96.66W
06/21/2024  M3.64 Inch       Minnehaha          SD   Cocorahs

            Cocorahs station SD-MH-128 Sioux Falls 3.6
            ESE.

0800 AM     Rain             Sibley                  43.40N 95.75W
06/21/2024  M3.50 Inch       Osceola            IA   CO-OP Observer

            CO-OP Observer station SIBI4 Sibley.

0800 AM     Rain             Bridgewater             43.55N 97.50W
06/21/2024  M3.45 Inch       McCook             SD   CO-OP Observer

            CO-OP Observer station BRGS2 Bridgewater.

0800 AM     Rain             2 NW Bigelow            43.52N 95.72W
06/21/2024  M3.33 Inch       Nobles             MN   Cocorahs

            Cocorahs station MN-NB-10 Bigelow 1.8 NW.

0700 AM     Rain             Sheldon                 43.18N 95.85W
06/21/2024  M3.20 Inch       O'Brien            IA   CO-OP Observer

            CO-OP Observer station SHDI4 Sheldon.

0800 AM     Rain             1 NE Madison            44.02N 97.10W
06/21/2024  M3.17 Inch       Lake               SD   Cocorahs

            Cocorahs station SD-LK-13 Madison 0.8 NE.

0700 AM     Rain             4 SSW Pickstown         43.02N 98.56W
06/21/2024  M3.04 Inch       Gregory            SD   CO-OP Observer

            CO-OP Observer station PCKS2 Pickstown 4
            SSW.

0800 AM     Rain             1 N Chamberlain         43.82N 99.32W
06/21/2024  M2.85 Inch       Brule              SD   Cocorahs

            Cocorahs station SD-BL-24 Chamberlain 0.6 N.

0630 AM     Rain             Flandreau               44.05N 96.60W
06/21/2024  M2.65 Inch       Moody              SD   CO-OP Observer

            CO-OP Observer station FLAS2 Flandreau.

0800 AM     Rain             Sanborn                 43.18N 95.65W
06/21/2024  M2.51 Inch       O'Brien            IA   Cocorahs

            Cocorahs station IA-OB-4 Sanborn 0.3 ENE.

0800 AM     Rain             2 ESE Harrison          43.43N 98.49W
06/21/2024  M2.41 Inch       Douglas            SD   Cocorahs

            Cocorahs station SD-DG-12 Corsica 4.3 W.

0700 AM     Rain             2 ENE Oldham            44.24N 97.27W
06/21/2024  M2.25 Inch       Kingsbury          SD   Cocorahs

            Cocorahs station SD-KY-11 Oldham 1.9 ENE.

0800 AM     Rain             9 NNE Burke             43.29N 99.21W
06/21/2024  M2.11 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-29 Burke 8.6 NNE.

0700 AM     Rain             1 WNW Gregory           43.24N 99.43W
06/21/2024  M2.05 Inch       Gregory            SD   Mesonet

            Mesonet station GRGS2 Gregory.

0700 AM     Rain             7 NNE Huron             44.46N 98.17W
06/21/2024  M2.04 Inch       Beadle             SD   Cocorahs

            Cocorahs station SD-BD-7 Huron 6.8 NNE.

0700 AM     Rain             Tyndall                 42.99N 97.86W
06/21/2024  M2.00 Inch       Bon Homme          SD   CO-OP Observer

            CO-OP Observer station TYNS2 Tyndall.

0800 AM     Rain             5 W Bruce               44.43N 97.00W
06/21/2024  M1.93 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-45 Bruce 5.3 W.

0748 AM     Rain             5 NNW Jackson           43.69N 95.02W
06/21/2024  M1.88 Inch       Jackson            MN   Cocorahs

            Cocorahs station MN-JC-9 Jackson 4.6 NNW.

0800 AM     Rain             White                   44.43N 96.65W
06/21/2024  M1.70 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-24 White 0.4 WNW.

0746 AM     Rain             3 SSW Brookings         44.27N 96.80W
06/21/2024  M1.70 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-36 Brookings 2.8 SSW.

0700 AM     Rain             Orange City             43.00N 96.05W
06/21/2024  M1.60 Inch       Sioux              IA   CO-OP Observer

            CO-OP Observer station ORCI4 Orange City.

0800 AM     Rain             1 NNW Pipestone         44.01N 96.33W
06/21/2024  M1.60 Inch       Pipestone          MN   CO-OP Observer

            CO-OP Observer station PIPM5 Pipestone.

0800 AM     Rain             Orange City             43.01N 96.07W
06/21/2024  M1.58 Inch       Sioux              IA   Cocorahs

            Cocorahs station IA-SX-9 Orange City 0.4
            WNW.

0700 AM     Rain             4 SSW Milroy            44.37N 95.60W
06/21/2024  M1.58 Inch       Lyon               MN   Cocorahs

            Cocorahs station MN-LY-15 Milroy 4.1 SSW.

0750 AM     Rain             4 E Gregory             43.24N 99.34W
06/21/2024  M1.48 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-25 Gregory 4.3 E.

0800 AM     Rain             1 N Marshall            44.47N 95.79W
06/21/2024  M1.40 Inch       Lyon               MN   CO-OP Observer

            CO-OP Observer station MMLM5 Marshall.

0800 AM     Rain             6 WSW Herrick           43.09N 99.30W
06/21/2024  M1.30 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-16 Burke 6.7 S.

0800 AM     Rain             7 E Fairfax             43.04N 98.75W
06/21/2024  M1.10 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-11 Fairfax 6.9 E.

0746 AM     Rain             5 S Cottonwood          44.54N 95.68W
06/21/2024  M1.09 Inch       Lyon               MN   Cocorahs

            Cocorahs station MN-LY-14 4 S Cottonwood.

0700 AM     Rain             1 ESE Le Mars           42.78N 96.15W
06/21/2024  M1.08 Inch       Plymouth           IA   CO-OP Observer

            CO-OP Observer station LEMI4 Le Mars.

&&
Local storm report, Jun 21, 9:24 AM CDT, 4 hours 10 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
924 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     Rain             Montrose                43.70N 97.18W
06/21/2024  M4.75 Inch       McCook             SD   CO-OP Observer

            CO-OP Observer station MONS2 Montrose.

0800 AM     Rain             Windom                  43.87N 95.12W
06/21/2024  M4.52 Inch       Cottonwood         MN   CO-OP Observer

0700 AM     Rain             1 W Alexandria          43.65N 97.80W
06/21/2024  M3.30 Inch       Hanson             SD   CO-OP Observer

0900 AM     Rain             1 SSE Madison           43.99N 97.09W
06/21/2024  M2.93 Inch       Lake               SD   CO-OP Observer

            CO-OP Observer station MRFS2 Madison 2SE.

0800 AM     Rain             1 SW Brookings          44.29N 96.80W
06/21/2024  M1.70 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-3 Brookings 1.4 SW.

0700 AM     Rain             Brookings               44.30N 96.79W
06/21/2024  M1.70 Inch       Brookings          SD   Cocorahs

            Cocorahs station SD-BK-7 Brookings 0.2 SSW.

0800 AM     Rain             Bonesteel               43.08N 98.95W
06/21/2024  M1.44 Inch       Gregory            SD   Cocorahs

            Cocorahs station SD-GY-21 Bonesteel 0.1 S.

0800 AM     Rain             Corsica                 43.42N 98.41W
06/21/2024  M1.29 Inch       Douglas            SD   Cocorahs

            Cocorahs station SD-DG-11 Corsica 0.1 SSE.

&&
Local storm report, Jun 21, 9:32 AM CDT, 4 hours 2 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
932 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     Rain             1 N Rock Rapids         43.43N 96.17W
06/21/2024  M5.92 Inch       Lyon               IA   CO-OP Observer

            CO-OP Observer station RKRI4 Rock Rapids.

0800 AM     Rain             Windom                  43.87N 95.12W
06/21/2024  M4.52 Inch       Cottonwood         MN   CO-OP Observer

            Corrects previous rain report from Windom.

0700 AM     Rain             1 NW Wagner             43.08N 98.32W
06/21/2024  M4.30 Inch       Charles Mix        SD   Cocorahs

            Cocorahs station SD-CM-14 Wagner 0.8 NW.

0700 AM     Rain             1 N Okoboji             43.41N 95.14W
06/21/2024  M2.52 Inch       Dickinson          IA   Cocorahs

            Cocorahs station IA-DK-11 Spirit Lake 1.7
            SW.

0700 AM     Rain             1 E Oldham              44.23N 97.29W
06/21/2024  M2.42 Inch       Kingsbury          SD   Cocorahs

            Cocorahs station SD-KY-9 Oldham 0.9 E.

0700 AM     Rain             3 S Dante               42.99N 98.19W
06/21/2024  M2.20 Inch       Charles Mix        SD   Cocorahs

            Cocorahs station SD-CM-5 Dante 3.1 S.

0700 AM     Rain             2 W Avon                43.00N 98.10W
06/21/2024  M1.60 Inch       Bon Homme          SD   Cocorahs

            Cocorahs station SD-BH-16 Avon 2.1 W.

&&
Local storm report, Jun 21, 9:37 AM CDT, 3 hours 57 minutes before
Preliminary Local Storm Report
National Weather Service Sioux Falls SD
937 AM CDT Fri Jun 21 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     Rain             Rock Valley             43.21N 96.31W
06/21/2024  M4.20 Inch       Sioux              IA   CO-OP Observer

&&

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 8:29 PM CDTFlash Flood WarningFSDBrule3 hr
Jun 20, 9:06 PM CDTFlash Flood WarningFSDAurora, Brule, Davison3 hr
Jun 20, 10:14 PM CDTFlash Flood WarningFSDDavison, Hanson11 hr
Jun 20, 11:01 PM CDTFlash Flood WarningFSDHanson, Lake, McCook, Miner, Minnehaha9 hr
Jun 20, 11:20 PM CDTAreal Flood WarningFSDBrule12 hr
Jun 21, 12:10 AM CDTFlash Flood WarningFSDLincoln, Minnehaha, Turner9 hr
Jun 21, 12:22 AM CDTFlash Flood WarningFSDHutchinson, Lincoln, Turner9 hr
Jun 21, 12:30 AM CDTFlash Flood WarningFSDAurora, Brule, Davison8 hr
Jun 21, 1:11 AM CDTFlash Flood WarningFSDMinnehaha8 hr
Jun 21, 1:24 AM CDTRiver Flood WarningFSDDavison7 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDLincoln21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDLincoln, Union21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDMcCook21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDBon Homme, Hutchinson, Yankton21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDTurner6 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDTurner7 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDUnion21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDSanborn21 days
Jun 21, 1:24 AM CDTRiver Flood WarningFSDDavison, Hanson21 days
Jun 21, 1:47 AM CDTRiver Flood WarningFSDMinnehaha3 days
Jun 21, 1:47 AM CDTRiver Flood WarningFSDMinnehaha21 days
Jun 21, 2:17 AM CDTRiver Flood WarningFSDTurner6 days
Jun 21, 2:29 AM CDTFlash Flood WarningFSDClay, Lincoln, Turner, Union, Yankton7 hr
Jun 21, 2:32 AM CDTRiver Flood WarningFSDMinnehaha21 days
Jun 21, 2:32 AM CDTRiver Flood WarningFSDLincoln, Minnehaha21 days
Jun 21, 3:19 AM CDTRiver Flood WarningFSDLincoln, Minnehaha13 days
Jun 21, 4:51 AM CDTRiver Flood WarningFSDHutchinson21 days
Jun 21, 6:24 AM CDTRiver Flood WarningFSDMinnehaha3 days
Jun 21, 6:24 AM CDTRiver Flood WarningFSDMinnehaha6 days
Jun 21, 6:24 AM CDTRiver Flood WarningFSDBrookings, Moody12 days
Jun 21, 6:24 AM CDTRiver Flood WarningFSDMinnehaha14 days
Jun 21, 7:42 AM CDTAreal Flood WarningFSDAurora, Brule12 hr
Jun 21, 7:48 AM CDTAreal Flood WarningFSDAurora, Bon Homme, Clay, Davison, Hanson, Hutchinson and 7 more50 hr
Jun 21, 7:53 AM CDTAreal Flood WarningFSDLake, Minnehaha, Moody50 hr
Jun 21, 8:02 AM CDTAreal Flood WarningFSDLincoln, Turner, Union3 days
Jun 21, 8:31 AM CDTRiver Flood WarningFSDMcCook21 days
Jun 21, 8:34 AM CDTRiver Flood WarningFSDMinnehaha4 days
Jun 21, 9:44 AM CDTRiver Flood WarningFSDMinnehaha, Moody21 days
Jun 21, 9:44 AM CDTRiver Flood WarningFSDTurner21 days
Jun 21, 9:58 AM CDTAreal Flood WarningFSDBon Homme, Charles Mix, Hutchinson12 hr
Jun 21, 12:41 PM CDTRiver Flood WarningFSDYankton21 days
Jun 21, 12:41 PM CDTRiver Flood WarningFSDClay21 days
Jun 21, 5:07 PM CDTSevere Thunderstorm WarningFSDLake, McCook, Miner, Minnehaha38 min
Jun 21, 5:40 PM CDTSevere Thunderstorm WarningFSDLake, McCook, Minnehaha, Moody50 min
Jun 21, 5:48 PM CDTFlash Flood WarningFSDDavison, Hanson, Lake, McCook, Miner, Moody and 1 more3 hr
Jun 21, 6:27 PM CDTFlash Flood WarningFSDBrookings, Moody4 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 2024Every severe thunderstorm warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.