Scattered severe thunderstorms may bring large hail and isolated damaging winds this weekend over parts of the south central U.S. Smoke from Canadian wildfires will bring air quality issues to parts of the north central U.S. this weekend. Air Quality Alerts have been issued. Read More >
Overview
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Severe thunderstorms moved east across northern South Dakota during the evening of August 9th and early morning hours of August 10th. These storms produced wind gusts up to 90 mph, large hail and heavy rainfall from Corson County eastward through Roberts County, SD and Traverse County, MN. |
 Locations of Hail (H) and Wind (W) Reports across the region during the evening of August 9 into the early morning hours of August 10. |
Wind:
While 60+ mph winds were reported in numerous locations across northern SD, the strongest winds were experienced in Marshall and Edmunds Counties. Here are some pictures from the Hillshead and Ipswich areas.
Hillshead
There was a measured gust of 92 mph at 2:41 AM CDT (8/10) 3 miles to the WSW of Hillshead.
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| Damage in Veblen (Photo from Marshall County EM) | A barn was destroyed near Hillhead (Photo from Marshall County EM) | Camper flipped near Hillhead (Photo from Marshall County EM) | Farm Equipment flipped near Hillhead (Photo from Marshall County EM) |
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| Holes in building near Hillhead (Photo from Marshall County EM) | Roof damage to metal building near Hillhead (Photo from Marshall County EM) | Roof damage to a house near Hillhead (Photo from Marshall County EM) |
Ipswich
At 1:55 AM CDT (8/10), an 83 mph gust was reported on Highway 12 at Cravens Corner, or 5 miles east of Ipswich.
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| Damage to the State Shop building in Ipswich (Photo from Edmunds County EM) | Damage at Trail Days site (Photo from Edmunds County EM) | Bleachers flipped at Trail Days site (Photo from Edmunds County EM) | Tree snapped at County Courthouse (Photo from Edmunds County EM) |
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| Tree uprooted near the 4H building (Photo from Edmunds County EM) | Tree damage around Ipswich (Photo from Edmunds County EM) | Tree damage around Ipswich (Photo from Edmunds County EM) | Tree damage around Ipswich (Photo from Edmunds County EM) |
Radar:
Radar imagery between 11 PM CDT on August 9, 2016 and 4 AM CDT August 10, 2016
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| Bowing storm near McIntosh, with a bookend vortex on the north side of the storm. | A slow moving Supercell to the northwest of Eureka. There were radar indications of a tornado, but only funnel clouds were reported. | The bowing thunderstorm continuing to move east across northern SD and producing 50-70+ mph winds. |
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| Radar image of the storm as it moved through Ipswich (83 mph wind measured) and Frederick (70 mph). | Strong rotation and radar estimates of 100+ mph winds around 3,500 feet above the ground near Veblen. |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ABERDEEN SD
134 PM CDT WED AUG 10 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0947 PM HAIL 5 SSE POLLOCK 45.84N 100.24W
08/09/2016 E0.88 INCH CAMPBELL SD TRAINED SPOTTER
.
1030 PM TSTM WND DMG HERREID 45.84N 100.08W
08/09/2016 CAMPBELL SD LAW ENFORCEMENT
REPORTS OF CAMPERS FLIPPED WITH MINOR
INJURIES. 1 TRANSPORTED TO HOSPITAL. TIME
ESTIMATED.
1030 PM TSTM WND GST 2 N HERREID 45.87N 100.07W
08/09/2016 M56 MPH CAMPBELL SD MESONET
HERREID RWIS.
1046 PM TSTM WND GST 2 NW SHAMBO RANCH 45.55N 101.87W
08/09/2016 M74 MPH CORSON SD MESONET
MESONET STATION SHAMBO RANCH 2 NWN /E4353/.
1046 PM NON-TSTM WND GST 2 NW SHAMBO RANCH 45.55N 101.87W
08/09/2016 M74 MPH CORSON SD MESONET
MESONET STATION SHAMBO RANCH 2 NWN /E4353/.
1050 PM TSTM WND GST 2 N HERREID 45.87N 100.07W
08/09/2016 M61 MPH CAMPBELL SD MESONET
.
1100 PM TSTM WND DMG 3 SSE MCINTOSH 45.88N 101.33W
08/09/2016 CORSON SD LAW ENFORCEMENT
MANY POWER POLES DOWN FROM MCINTOSH AND FOR
SEVERAL MILES SOUTH ON HIGHWAY 65. A QUONSET
WAS BLOWN ACROSS HIGHWAY 65. TIME ESTIMATED
VIA RADAR.
1109 PM TSTM WND GST 1 SSE ARTAS 45.88N 99.80W
08/09/2016 E70 MPH CAMPBELL SD PUBLIC
PEA SIZED HAIL.
1120 PM TSTM WND GST 11 S BULLHEAD 45.61N 101.06W
08/09/2016 M64 MPH CORSON SD MESONET
TIME ESTIMATED.
1140 PM TSTM WND GST 4 W TRAIL CITY 45.47N 100.81W
08/09/2016 M62 MPH DEWEY SD MESONET
.
1140 PM TSTM WND GST 5 WNW MCLAUGHLIN 45.85N 100.91W
08/09/2016 M68 MPH CORSON SD MESONET
MEASURED AT MCLAUGHLIN RWIS.
1145 PM TSTM WND GST 5 WNW MCLAUGHLIN 45.85N 100.91W
08/09/2016 M68 MPH CORSON SD MESONET
MEASURED AT MCLAUGHLIN RWIS.
1150 PM TSTM WND GST LITTLE EAGLE 45.68N 100.80W
08/09/2016 E60 MPH CORSON SD TRAINED SPOTTER
ESTIMATED 50 TO 60 MPH WIND GUST AND PEA
HAIL.
1155 PM TSTM WND GST 1 SSE MAHTO 45.74N 100.66W
08/09/2016 M71 MPH CORSON SD MESONET
.
1200 AM HAIL 3 N EUREKA 45.81N 99.62W
08/10/2016 E2.00 INCH MCPHERSON SD PUBLIC
VIA SOCIAL MEDIA. TIME ESTIMATED.
1205 AM TSTM WND GST 2 ENE FIRESTEEL 45.43N 101.24W
08/10/2016 E60 MPH DEWEY SD PUBLIC
PEA SIZED HAIL.
1216 AM TSTM WND GST 1 ENE MOBRIDGE 45.55N 100.41W
08/10/2016 M54 MPH WALWORTH SD ASOS
ASOS STATION MOBRIDGE MUNICIPAL AIRPORT
/MBG/.
1220 AM TSTM WND GST MOBRIDGE 45.54N 100.44W
08/10/2016 E65 MPH WALWORTH SD TRAINED SPOTTER
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1230 AM HAIL 5 NW LONG LAKE 45.91N 99.28W
08/10/2016 M1.50 INCH MCPHERSON SD PUBLIC
TIME ESTIMATED. VIA SOCIAL MEDIA.
1235 AM TSTM WND GST 4 NE LONG LAKE 45.90N 99.14W
08/10/2016 E60 MPH MCPHERSON SD PUBLIC
FEW QUARTER-SIZED HAILSTONES.
1242 AM TSTM WND GST SELBY 45.51N 100.03W
08/10/2016 E70 MPH WALWORTH SD LAW ENFORCEMENT
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1247 AM TSTM WND DMG 4 NE SELBY 45.55N 99.98W
08/10/2016 WALWORTH SD LAW ENFORCEMENT
TREES AND TREE BRANCHES DOWN AT LAKE
HIDDENWOOD. TIME ESTIMATED VIA RADAR.
0100 AM TSTM WND GST 10 W LONG LAKE 45.88N 99.41W
08/10/2016 M59 MPH MCPHERSON SD MESONET
TIME ESTIMATED.
0110 AM TSTM WND GST 10 SW LONG LAKE 45.77N 99.36W
08/10/2016 M54 MPH MCPHERSON SD MESONET
MEASURED AT EUREKA RWIS...13 MILES TO THE
EAST.
0130 AM TSTM WND GST SELBY 45.51N 100.04W
08/10/2016 E60 MPH WALWORTH SD TRAINED SPOTTER
.
0153 AM TSTM WND DMG IPSWICH 45.44N 99.03W
08/10/2016 EDMUNDS SD EMERGENCY MNGR
WIDESPREAD TREE DAMAGE IN IPSWICH.
0155 AM TSTM WND GST CRAVENS CORNER 45.45N 98.93W
08/10/2016 M83 MPH EDMUNDS SD MESONET
CRAVEN CORNER RWIS.
0200 AM TSTM WND GST 7 N FREDERICK 45.93N 98.53W
08/10/2016 M70 MPH BROWN SD MESONET
FREDRICK RWIS.
0212 AM TSTM WND GST 3 ESE ABERDEEN 45.46N 98.41W
08/10/2016 M58 MPH BROWN SD OFFICIAL NWS OBS
MEASURED AT THE NWS ABERDEEN OFFICE.
0212 AM TSTM WND GST 3 ESE ABERDEEN 45.46N 98.41W
08/10/2016 M53 MPH BROWN SD ASOS
ASOS STATION ABERDEEN REGIONAL AIRPORT
/ABR/.
0224 AM HAIL 3 SSW ROSCOE 45.41N 99.36W
08/10/2016 U1.25 INCH EDMUNDS SD LAW ENFORCEMENT
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0235 AM TSTM WND GST 2 N BRITTON 45.82N 97.74W
08/10/2016 M72 MPH MARSHALL SD MESONET
MESONET STATION BRITTON 1 NNE /KBTN/.
0240 AM TSTM WND DMG 1 W HILLHEAD 45.84N 97.41W
08/10/2016 MARSHALL SD EMERGENCY MNGR
9 POWER POLLS BLOWN DOWN. RADAR ESTIMATED
TIME. .
0241 AM TSTM WND GST 3 WSW HILLHEAD 45.81N 97.45W
08/10/2016 M92 MPH MARSHALL SD MESONET
MARSHALL COUNTY RAWS - MRLS2. TIME ESTIMATED
VIA RADAR.
0242 AM TSTM WND DMG 1 E HILLHEAD 45.84N 97.37W
08/10/2016 MARSHALL SD EMERGENCY MNGR
BARN COLLAPSE AND TREES BROKEN OFF. RADAR
ESTIMATED TIME. .
0249 AM TSTM WND DMG VEBLEN 45.86N 97.29W
08/10/2016 MARSHALL SD TRAINED SPOTTER
A FEW 3 TO 4 INCH DIAMETER TREE BRANCHES
DOWN IN TOWN. SEVERAL SMALL BRANCHES DOWN.
0309 AM TSTM WND GST 2 ENE SISSETON 45.67N 97.00W
08/10/2016 M56 MPH ROBERTS SD ASOS
ASOS STATION SISSETON MUNICIPAL AIRPORT
/8D3/.
0313 AM TSTM WND GST 4 NNW VICTOR 45.93N 96.85W
08/10/2016 M52 MPH ROBERTS SD MESONET
VICTOR RWIS.
0342 AM TSTM WND DMG 2 SE TINTAH 45.99N 96.30W
08/10/2016 TRAVERSE MN PUBLIC
5-6" DIAMETER BRANCHES DOWN.
Rain Reports
24 Hour Rainfall Amounts ending at Noon on August 10, 2016
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