Hail and Damaging Winds in South Dakota, August 9, 2002

Name: Hail and Damaging Winds in South Dakota, August 9, 2002
Start: 2002-08-09T17:35
End: 2002-08-09T17:50
Location: South Dakota

August 9, 2002 · NWS FSD · 4 events in 1 county or zone

2 hail, 2 thunderstorm wind, as filed by the National Weather Service.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $100,000
Crop damage: None recorded
Events: 4

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.

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 Aug 9, 2:30 PM CST, 3 hours 5 minutes earlier.

Area forecast discussion, Aug 9, 2:30 PM CST, 3 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
330 PM CDT FRI AUG 9 2002

SFC TROF HANGING IN THERE FM ERN DKTS TO CNTRL NE ATTM AND WILL BE
FOCAL POINT FOR MORE TSTM DVLPMT THIS EVE. FIRST ROUND OF TSTMS IN
CNTRL SD MAINLY ASSCD WITH LEFT FNT QUAD OF JET MAX MOVG INTO CNTRL
NE. EXPCT RRQ OF JET MAX TO FIRE TSTMS IN CNTRL NE TO SCNTRL SD
EARLY TNGT...WHICH SHOULD RAPIDLY DVLP NEWD OVR CWA THIS EVE...
LINGERING IN ERN CWA LATE TNGT. WILL GO MORE WITH AVN MODEL IN THIS
REGARD...WITH LKLY POPS TNGT. NOTHING EXCPT SC AND BRISK WNWLY WNDS
MAIN NERN HLF CWA FOR MIDDAY SAT...BUT THEN WARM ADV...CLRG AND LGTR
WNDS EXPCD BY LATE AFTN. MOST GUID TEMPS SEEM ON THE WARM SIDE THRU
WEEKEND...AND WILL SHADE BACK SOME. BUT EXPCT BTR MIXING TO
POTENTIAL THAN LAST COUPLE OF DAYS. BRISK RETURN SLY FLW SHOULD
BRING BACK GULF MOISTURE INTO AREA BY SUN NGT AHEAD OF STG WAVE...
WHICH AMERICAN MODELS STILL SEEM TOO FAST WITH. WENT MORE WITH
CANADIAN SPCTRL AND UKMET WITH A LIT SLOWER TIMING OF FNT AND SCT
SHWRS AND TSTMS FOR SUN NGT INTO MON. WENT WITH COOL TREND FOR TUE
THRU FRI. THERE IS A CHC OF SHWRS WITH VARIOUS WEAK WAVES IN THE
FLOW DURG EXTD...BUT ALL MODELS KIND OF DIFFERENT AND CONFIDENCE
LOW...AND WILL LV OUT.

.FSD...NONE
RYRHOLM

In the hours before

Local storm report, Aug 9, 5:19 PM CST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
619 PM CDT FRI AUG 09 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0530 PM    8 S DALLAS                SD   .75 INCH HAIL
08/09/02   GREGORY                        REPORTED BY PUBLIC.

0543 PM    5 WNW STORLA              SD   60 MPH TSTM GUST
08/09/02   AURORA                         5 INCH TREE LIMBS DOWN.
                                          REPORTED BY PUBLIC.

0545 PM    11 S BURKE                SD   .75 INCH HAIL
08/09/02   GREGORY                        REPORTED BY STORM
                                          SPOTTER.

0556 PM    8 WSW LETCHER             SD   .88 INCH HAIL
08/09/02   SANBORN                        REPORTED BY STORM
                                          SPOTTER.

0556 PM    8 WSW LETCHER             SD   60 MPH TSTM GUST
08/09/02   SANBORN

0556 PM    2 S BURKE                 SD   1.5 INCH HAIL
08/09/02   GREGORY                        REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0557 PM    1 E STORLA                SD   .88 INCH HAIL
08/09/02   AURORA                         REPORTED BY STORM
                                          SPOTTER.

0559 PM    PLATTE                    SD   .75 INCH HAIL
08/09/02   CHARLES MIX                    REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0605 PM    BONESTEEL                 SD   1.75 INCH HAIL
08/09/02   GREGORY                        REPORTED BY COOPERATIVE
                                          OBSERVER.

0609 PM    3 W LETCHER               SD   60 MPH TSTM GUST
08/09/02   SANBORN                        REPORTED BY STORM
                                          SPOTTER.

0609 PM    3 W LETCHER               SD   .88 INCH HAIL
08/09/02   SANBORN                        REPORTED BY STORM
                                          SPOTTER.

0610 PM    3 W LETCHER               SD   1 INCH HAIL
08/09/02   SANBORN                        REPORTED BY STORM
                                          SPOTTER.

The radar

The Sioux Falls radar (KFSD), 157 km away, was scanning. The volume nearest the first event began at 23:35 UTC.

Open the radar archive at this moment

Event by event

2 hail, 2 thunderstorm wind. Local standard time, as filed.

Hail, Charles Mix

When: August 9, 5:35 PM CST to 5:45 PM CST
Where: Charles Mix County, Pickstown
Measured: 1 in hail
Reported by: TRAINED SPOTTER
Coordinates: 43.067, -98.533

Thunderstorm Wind, Charles Mix

When: August 9, 5:35 PM CST
Where: Charles Mix County, Pickstown
Measured: 61 kt (70 mph)
Property damage: $100,000
Reported by: TRAINED SPOTTER
Coordinates: 43.067, -98.533

Thunderstorm winds destroyed a metal utility shed, damaged campers, damaged several garage roofs, and caused tree damage, including a few large trees blown down.

Hail, Charles Mix

When: August 9, 5:50 PM CST
Where: Charles Mix County, 4 mi E of Pickstown
Measured: 0.88 in hail
Reported by: GENERAL PUBLIC
Coordinates: 43.067, -98.450

Large hail, driven by strong winds, destroyed area crops. The amount of crop damage was not known.

Thunderstorm Wind, Charles Mix

When: August 9, 5:50 PM CST
Where: Charles Mix County, 4 mi E of Pickstown
Measured: 52 kt (60 mph)
Reported by: GENERAL PUBLIC
Coordinates: 43.067, -98.450

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in South Dakota in 2002 Every state in 2002 This day in weather history Warnings in South Dakota, August 2002

Sources

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: 5312603, 5312604, 5312605, 5312606.