A supercell thunderstorm developed over southeastern Lawrence County and moved into southwestern Meade County, dropping dime to golf ball sized hail. As the storm moved into the Rapid City area, the storm became outflow dominated and moved through Rapid City with 60 to 70 mph winds. The storm continued to move quickly east-southeast across southwestern and south central South Dakota producing 60 to 80 mph winds and hail to the size of golf balls. The strong winds downed many trees and power lines from Rapid City to the Winner area.

Thunderstorm Wind in MEADE, SOUTH DAKOTA
From 04-JUL-03 14:38:00 to 04-JUL-03 14:38:00 (MST)
Location: BLACK HAWK
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: FIRE DEPT/RESCUE SQUAD

Thunderstorm Wind in MEADE, SOUTH DAKOTA
From 04-JUL-03 14:39:00 to 04-JUL-03 14:39:00 (MST)
Location: (RCA)ELLSWORTH AFB R
Magnitude: 52 MG
Property damage: 0
Crop damage: 0
Reported by: AWOS,ASOS,MESONET,ETC

Hail in MEADE, SOUTH DAKOTA
From 04-JUL-03 14:22:00 to 04-JUL-03 14:22:00 (MST)
Location: TILFORD
Magnitude: 0.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in MEADE, SOUTH DAKOTA
From 04-JUL-03 14:25:00 to 04-JUL-03 14:25:00 (MST)
Location: PIEDMONT
Magnitude: 1.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in LAWRENCE, SOUTH DAKOTA
From 04-JUL-03 14:15:00 to 04-JUL-03 14:15:00 (MST)
Location: GALENA
Magnitude: 0.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in LAWRENCE, SOUTH DAKOTA
From 04-JUL-03 13:50:00 to 04-JUL-03 13:50:00 (MST)
Location: DEADWOOD
Magnitude: 0.75 
Property damage: 0
Crop damage: 0
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:21:00 to 04-JUL-03 16:21:00 (MST)
Location: WANBLEE
Magnitude: 1.75 
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Hail in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:30:00 to 04-JUL-03 16:30:00 (MST)
Location: KADOKA
Magnitude: 1.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in TODD, SOUTH DAKOTA
From 04-JUL-03 17:12:00 to 04-JUL-03 17:12:00 (MST)
Location: PARMELEE
Magnitude: 1.00 
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Hail in TODD, SOUTH DAKOTA
From 04-JUL-03 17:26:00 to 04-JUL-03 17:26:00 (MST)
Location: ROSEBUD
Magnitude: 1.75 
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in MELLETTE, SOUTH DAKOTA
From 04-JUL-03 17:35:00 to 04-JUL-03 17:35:00 (MST)
Location: WHITE RIVER
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in TODD, SOUTH DAKOTA
From 04-JUL-03 17:45:00 to 04-JUL-03 17:45:00 (MST)
Location: ST FRANCIS
Magnitude: 71 MG
Property damage: 50K
Crop damage: 0
Reported by: EMERGENCY MANAGER

Many trees and power lines were downed around Saint Francis with some property damage. A mobile home was tipped over by the strong winds. No one was injured.

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:20:00 to 04-JUL-03 16:20:00 (MST)
Location: CEDAR PASS
Magnitude: 70 EG
Property damage: 20K
Crop damage: 0
Reported by: LAW ENFORCEMENT

Wind damaged buildings and campground structures at Badlands National Park's Cedar Pass and large trees were uprooted.

Thunderstorm Wind in OGLALA LAKOTA, SOUTH DAKOTA
From 04-JUL-03 16:00:00 to 04-JUL-03 16:00:00 (MST)
Location: KYLE
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:07:00 to 04-JUL-03 16:07:00 (MST)
Location: INTERIOR
Magnitude: 0.75 
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:07:00 to 04-JUL-03 16:07:00 (MST)
Location: INTERIOR
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:10:00 to 04-JUL-03 16:15:00 (MST)
Location: INTERIOR
Magnitude: 70 EG
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in TRIPP, SOUTH DAKOTA
From 04-JUL-03 18:15:00 to 04-JUL-03 18:15:00 (MST)
Location: IDEAL
Magnitude: 0.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Thunderstorm Wind in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:30:00 to 04-JUL-03 16:30:00 (MST)
Location: KADOKA
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Hail in JACKSON, SOUTH DAKOTA
From 04-JUL-03 16:40:00 to 04-JUL-03 16:50:00 (MST)
Location: LONGVALLEY
Magnitude: 1.75 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Thunderstorm Wind in BENNETT, SOUTH DAKOTA
From 04-JUL-03 16:53:00 to 04-JUL-03 16:53:00 (MST)
Location: VETAL
Magnitude: 61 EG
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Large trees were blown down.

Hail in MELLETTE, SOUTH DAKOTA
From 04-JUL-03 16:55:00 to 04-JUL-03 16:55:00 (MST)
Location: NORRIS
Magnitude: 0.88 
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

Thunderstorm Wind in CUSTER, SOUTH DAKOTA
From 04-JUL-03 15:20:00 to 04-JUL-03 15:20:00 (MST)
Location: FOLSOM
Magnitude: 61 EG
Property damage: 0
Crop damage: 0
Reported by: GENERAL PUBLIC

Large branches were broken off trees.

Thunderstorm Wind in PENNINGTON, SOUTH DAKOTA
From 04-JUL-03 15:18:00 to 04-JUL-03 15:18:00 (MST)
Location: SCENIC
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: NWS EMPLOYEE(OFF DUTY)

Thunderstorm Wind in PENNINGTON, SOUTH DAKOTA
From 04-JUL-03 15:40:00 to 04-JUL-03 15:40:00 (MST)
Location: SCENIC
Magnitude: 61 EG
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER

Up to 12 inch diameter limbs were snapped off trees.

Thunderstorm Wind in TODD, SOUTH DAKOTA
From 04-JUL-03 17:45:00 to 04-JUL-03 17:45:00 (MST)
Location: OKREEK
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in PENNINGTON, SOUTH DAKOTA
From 04-JUL-03 14:36:00 to 04-JUL-03 14:36:00 (MST)
Location: RAPID CITY
Magnitude: 54 MG
Property damage: 10K
Crop damage: 0
Reported by: OFFICIAL NWS OBS.

Numerous trees and power lines  were blown down in Rapid City.

Thunderstorm Wind in PENNINGTON, SOUTH DAKOTA
From 04-JUL-03 14:50:00 to 04-JUL-03 14:50:00 (MST)
Location: (RAP)RAPID CITY ARPT
Magnitude: 51 MG
Property damage: 0
Crop damage: 0
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in TRIPP, SOUTH DAKOTA
From 04-JUL-03 17:51:00 to 04-JUL-03 17:51:00 (MST)
Location: CARTER
Magnitude: 52 EG
Property damage: 0
Crop damage: 0
Reported by: LAW ENFORCEMENT

Hail in MEADE, SOUTH DAKOTA
From 04-JUL-03 14:43:00 to 04-JUL-03 14:43:00 (MST)
Location: HEREFORD
Magnitude: 1.25 
Property damage: 0
Crop damage: 0
Reported by: TRAINED SPOTTER