Thunderstorm Wind, Beadle
- When
- July 21, 2:26 AM CST
- Where
- Beadle County, Huron Arpt
- Measured
- 53 kt (61 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 44.383, -98.233
Damaging Winds in South Dakota, July 21, 2002
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $100,000
- Crop damage
- None recorded
- Events
- 2
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 Jul 21, 1:03 AM CST, 1 hour 23 minutes earlier.
Area forecast discussion, Jul 21, 1:03 AM CST, 1 hour 23 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SIOUX FALLS SD 203 AM CDT SUN JUL 21 2002 ...MAIN CONCERNS WILL AGAIN BE HEAT AND WHAT LOOKS TO BE THE LAST DECENT CHANCE FOR THUNDERSTORMS FOR A FEW DAYS... CONVECTIVE CLUSTER RIDING THE CAP INTO NORTH CENTRAL SD EARLY THIS MORNING. SOME OF THIS ACTIVITY LOOKS AS THOUGH IT COULD CREEP INTO NORTHERN AND WESTERN COUNTIES AND WILL CONTINUE CHANCE POPS...BASICALLY NORTH OF A CHAMBERLAIN TO PIPESTONE LINE. CORFIDI VECTORS AND MID LEVEL WINDS SUGGEST A LITTLE MORE OF AN EASTERLY MOVEMENT AS CONVECTION REACHES NORTHEAST SD. WITH CONVECTION A LITTLE FARTHER SOUTH THIS MORNING...SHOULD BE A LITTLE MORE CLOUD COVER OVER NORTHERN CWA THIS MORNING AND WITH LIGHT NORTH WIND IN PLACE AND EXPECTED TO INCREASE TODAY...THOSE AREAS SHOULD SEE MUCH MORE SEASONAL TEMPERATURES. THE BIGGEST QUESTION WITH REGARDS TO HEAT THIS AFTERNOON WILL BE NORTHWEST IOWA AND NORTHEAST NE. MOSTLY SUNNY SKIES...A SOUTHERLY WIND AND DEW POINTS IN THE 70S WILL LEAD TOWARDS HOT AND HUMID CONDITIONS AGAIN. MAY ISSUE A HEAT ADVISORY FOR THESE AREAS TODAY. OTHERWISE...LOOK FOR MID TO UPPER 80S NORTH CWA TO MID AND UPPER 90S SOUTH CWA. WITH REGARDS TO CONVECTIVE CHANCES LATE THIS AFTERNOON AND INTO THE EVENING. BELIEVE ETA A LITTLE OVERDONE ON PRECIP FROM 18Z TO 00Z AS THIS IS A CLIMATOLOGICALLY UNFAVORED TIME FOR WIDESPREAD CONVECTION. WOULD EXPECT MORE WIDESPREAD CONVECTION TO HOLD OFF UNTIL EARLY EVENING...WHICH WOULD SUPPORT BEST CHANCES FOR THUNDER OVER SOUTHWEST MN AND NORTHWEST IA AND SOUTHEAST SD. THE 700MB AND 500MB ANALYSIS SHOWED SOME DECENT COOLING OCCURRING OVER EASTERN MONTANA AND THE INTERMOUNTAIN WEST...WHICH SHOULD AID IN THUNDER DEVELOPMENT THIS EVENING. BOTH ETA AND AVN DETERIORATE THE CAP BETWEEN 21Z AND 00Z SO SCATTERED THUNDERSTORMS SHOULD DEVELOP ALONG BOUNDARY DURING THIS TIME. GUIDANCE POPS RUNNING FROM ABOUT 40 TO 80 PERCENT ACROSS CWA AS ALWAYS...BIGGEST QUESTION WILL BE LOCATION OF BOUNDARY LATE IN THE AFTERNOON. MODELS A LITTLE SLOWER WITH SOUTHWARD MOVEMENT AND BELIEVE LATEST PACKAGE HAS THIS COVERED. WILL CARRY HIGHEST POPS IN SW MN AND NW IA. THE FIRST HALF OF THE WORK WEEK LOOKS EXCELLENT WITH LESS HUMID AIR AND TEMPERATURES ABOUT 5 TO 10 DEGREES BELOW SEASONAL NORMALS. NEXT BEST CHANCE FOR THUNDER OUTSIDE OF TODAY CONTINUES TO BE WEDNESDAY. .FSD...NONE. 08
The radar
The national radar mosaic for the moment the first event began.
Event by event
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Beadle
- When
- July 21, 2:40 AM CST
- Where
- Beadle County, Huron
- Measured
- 69 kt (79 mph)
- Property damage
- $100,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.350, -98.217
Thunderstorm winds caused widespread tree damage. The winds also blew down power lines and poles, resulting in a power outage. Minor damage to homes was also reported.
What these are
- 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
- Lightning Strike in Wisconsin, July 21, 2002
- Wildfire in California, July 21 to 31, 2002
- Wildfire in California, July 21 to 24, 2002
- Hail and Damaging Winds in Nebraska, July 21, 2002
- Flash Flood and Hail in Nebraska, July 21, 2002
- Hail and Damaging Winds in Mississippi, July 21, 2002
- Flood and Hail in Georgia, July 21, 2002
- Damaging Winds in Minnesota, July 21, 2002
- Hail and Damaging Wind in Iowa, July 21, 2002
- Damaging Winds in Minnesota, July 21, 2002
- Damaging Winds in Iowa, July 21, 2002
- Damaging Wind in Tennessee, July 21, 2002
More
Every storm in South Dakota in 2002Every state in 2002This day in weather historyWarnings in South Dakota, July 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 2026-09-30. Each event’s entry at NCEI: 5310861, 5310862.