3 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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.
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 Aberdeen, SD wrote its last area forecast discussion before the first event at Aug 19, 2:45 AM CST, 1 hour 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ABERDEEN SD 345 AM CDT FRI AUG 19 2005 .SHORT TERM...TODAY THROUGH SUNDAY NIGHT MAIN FOCUS IN THE SHORT TERM IS ON PRECIPITATION TODAY AND TONIGHT. LARGE UPPER TROUGH CURRENTLY SLIDING ACROSS SOUTHERN CANADA...WITH AN ASSOCIATED COLD FRONT TO DROP SOUTH THROUGH THE CWA TODAY. MODEL IN GOOD AGREEMENT WITH EACH OTHER...SHOWING THIS DEEP UPPER TROUGH SHOVING EAST INTO THE GREAT LAKES REGION BY MIDDAY SATURDAY. MODELS TRENDING TOWARD A WEAKER SOLUTION WITH THIS SYSTEM TODAY...SO HAVE DECREASED POPS SOMEWHAT ACROSS THE CWA. STILL LOOKS LIKE A DECENT SYSTEM...WITH ASSOCIATED SHOWERS AND THUNDERSTORMS CURRENTLY SHOWING UP ON RADAR ACROSS MUCH OF THE CENTRAL DAKOTAS. EXPECT AREA OF PRECIPITATION TO CONTINUE TO PROGRESS EASTWARD THIS MORNING AS THE FRONT SLIDES TO THE SOUTH AND EAST. GFS SHOWING THE SYSTEM EXITING SLIGHTLY FASTER THAN IN PREVIOUS RUNS...ALONG WITH THE BETTER LIFT KEEPING JUST TO THE NORTH ACROSS SOUTHEASTERN NORTH DAKOTA. THEREFORE HAVE DECREASED SOME OF THE POPS ACROSS THE WESTERN CWA THIS MORNING AND NEAR KATY WITH THE MAJORITY OF THE -TRW KEEPING TO THE NORTH OF THAT AREA. ANTICIPATE MOST OF THE PRECIP HAVING MOVED OFF TO THE EAST BY MID AFTERNOON...WITH A SECONDARY SHORTWAVE PUSHING THROUGH THE AREA THIS EVENING. THEREFORE LEFT THE SLIGHT CHANCE POPS FOR LATER TODAY AND TONIGHT WITH AN AREA OF WEAK UVM SHOWING UP WITH THIS WAVE. NAM AND GFS MODELS DIFFER SOMEWHAT IN THE TEMPERATURES FIELDS OVER THE NEXT FEW DAYS. NAM LOOKING SIMILAR TO PREVIOUS RUNS OF BOTH THE GFS AND NAM...WITH H85 TEMPS DROPPING INTO THE SINGLE DIGITS BY SATURDAY INTO SATURDAY NIGHT. LATEST GFS NOW SHOWING A WARMER SOLUTION WITH H85 TEMPS ONLY DROPPING INTO THE MID TEENS. KEPT TEMPERATURES GRIDS BASICALLY WHERE THEY WERE AT WITH THE COOLER NAM SOLUTION...BUT WILL MONITOR FOR POSSIBILITY OF THE WARMER GFS SOLUTION. OTHERWISE A LARGE UPPER RIDGE BUILDS INTO THE REGION THROUGH THE WEEKEND...WITH DRY CONDITIONS EXPECTED AND A WARMING TREND SUNDAY INTO THE BEGINNING OF NEXT WEEK. .LONG TERM...MONDAY THROUGH THURSDAY EXTENDED RANGE OPENS WITH HIGH PRESSURE OVER THE REGION AT THE SURFACE AND ALOFT. THE SURFACE HIGH MOVES TO THE EAST AS AN H5 UPPER TROUGH MOVES OVER THE ROCKIES AND PUSHES A SURFACE REFLECTION OUT ONTO THE PLAINS TUESDAY THROUGH THURSDAY. THERE REMAINS SOME MODEL DIFFERENCES BUT SEE NO REASON TO CHANGE GOING FORECAST AT THIS TIME. WITH LATER RUNS AND BETTER AGREEMENT EXPECT THE TIME OF THE STORMS CAN BE RESOLVED BETTER THAN NOW. && .ABR WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. && ALBRECHT/KEEFE
The Aberdeen radar (KABR), 67 km away, was scanning. The volume nearest the first event began at 10:27 UTC.
3 thunderstorm wind. Local standard time, as filed.
Seventy mph winds downed several trees and many branches southeast of Britton.
High winds downed several trees and many branches.
Several trees were downed at Roy Lake State Park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2005Every state in 2005This day in weather historyWarnings in South Dakota, August 2005
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: 5472833, 5472834, 5472835.