South Dakota, 2002

Hail in South Dakota, August 9, 2002

August 9, 2002 · NWS UNR · 1 event in 1 county or zone

1 hail, 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
None recorded
Crop damage
None recorded
Events
1

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 Rapid City, SD wrote its last area forecast discussion before the first event at Aug 9, 2:00 PM MST, 1 hour 45 minutes earlier.

Area forecast discussion, Aug 9, 2:00 PM MST, 1 hour 45 minutes before
AREA FORECAST DISCUSSION FOR WESTERN SD AND NORTHEASTERN WY
NATIONAL WEATHER SERVICE RAPID CITY SD
300 PM MDT FRI AUG 09 2002

LATEST SFC ANALYSIS SHOWS HIGH PRESSURE BUILDING OVER NRN ROCKIES
WITH RIDGING EXTENDING INTO WRN SD. WV AND IR REVEAL UPPER LOW
SPINNING OUT OF MT INTO WRN ND. A SMALL VORT MAX IS ROTATING AROUND
THIS LOW ACROSS NE WY AND WRN SD ATTM. THIS HAS KICKED OFF A SMALL
AREA OF CONVECTION THAT HAS BEEN MOVING ACROSS THE NORTHERN BLACK
HILLS. SHOULD SEE THIS DISSIPATING OVER THE NEXT HOUR OR SO. ERN
ZONES SEEING A FEW -TSRA ALONG FRONTAL BOUNDARY.

12Z MODELS INITIALIZE WELL AND SHOW GOOD AGREEMENT. WILL EXPECT
CLOUD COVER ASSOC WITH UPPER LOW TO SWEEP ACROSS NRN ZONES THIS
EVENING AND THEN PARTLY CLOUDY SHOULD PREVAIL FOR SEVERAL PERIODS. A
BIT OF A WARM UP SAT AND SUNDAY...THEN ROBUST CAA WILL COOL CWFA
DOWN. WILL STRUGGLE TO HIT 70S ON MONDAY AND WILL REMAIN IN 70S
THROUGH MID WEEK. THU AND FRI WILL SEE WARMING TREND INTO 80S AND
90S AGAIN. WILL SEE A CHC OF PRECIP WITH COLDFRONT LATE
SUNDAY...THEN DRY UNTIL MID WEEK AS STEEP LAPSE RATES AND HEATING
WILL ALLOW DIURNAL CHC POPS. ALL THIS IS DUE TO HIGH AMPLITUDE UPPER
RIDGE BUILDING OFF THE PACIFIC COAST...WITH LONG WAVE TROF
DEVELOPING OVER CENT U.S. THIS WILL KEEP CAA FLOWING OVER NRN
PLAINS...OFFSETTING WARM AUGUST HEATING.

MODEL GUIDANCE SHOWING GOOD AGREEMENT THROUGH EXTENDED AND LOOKS
REASONABLE. HAVENT CHANGED MUCH.
.UNR...NONE.

99

In the hours before

Local storm report, Aug 9, 12:45 PM MST, 3 hours before
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE RAPID CITY SD
145 PM MDT FRI AUG 09 2002

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

0222 PM    13E OLSONVILLE            SD   60 MPH TSTM GUST
08/08/02   TODD                           REPORTED BY PUBLIC.

0230 PM    13WNW UPTON               SD   WIND DAMAGE. 5TH WHEEL
08/08/02   WESTON                         CAMPER TRAILER BLOWN
                                          OVER.

0300 PM    13S SUNDANCE              SD   65 MPH TSTM GUST
08/08/02   CROOK                          REPORTED BY PUBLIC.

WFO UNR STAFF

The radar

The North Platte radar (KLNX), 134 km away, was scanning. The volume nearest the first event began at 22:47 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Tripp

When
August 9, 3:45 PM MST
Where
Tripp County, 2 mi E of Millboro
Measured
0.88 in hail
Reported by
TRAINED SPOTTER
Coordinates
43.067, -99.933

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

More

Every storm in South Dakota in 2002Every state in 2002This day in weather historyWarnings 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: 5310702.