A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >
Overview
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Widespread strong to significantly severe storms impacted central and northeastern South Dakota, mainly from the evening into the night on Monday, June 20th, 2022. While isolated storms tracked across portions of north central South Dakota during the afternoon, a bowing line of thunderstorms with a history of 60 to 85 mph straight-line wind gusts entered Jones County around 6:40pm. This storm would continue to the northeast, reaching the Aberdeen area by around 9:40pm, while continuing to produce 60 to 80+ mph wind gusts. Among the hardest hit was Pierre, where numerous trees were damaged, along with other property. Additional strong to severe thunderstorms then developed and tracked through and east of the Prairie Coteau from roughly 9:45 to 11:15pm with wind gusts of 60 to 70+ mph. Additional damage was reported with these storms. While hail was a lesser threat, golf ball-sized stones did fall in Hand County. |
 Surface weather map at 4pm June 20th, prior to the beginning of more widespread severe thunderstorm activity, showing a cold front draped across central SD with hot and humid conditions to the east and somewhat cooler but still humid conditions to the west of it. |
Photos & Video
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| Shelf cloud as viewed near the Oahe Dam, northwest of Pierre. Photo from an NWS employee. | Tree uprooted near the Oahe Dam, northwest of Pierre. Photo from an NWS employee. | Tree damage near the Oahe Dam, northwest of Pierre. Photo from an NWS employee. | Billboard blown down on the north side of Pierre. Photo from an NWS employee. |
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| Tree damage in Pierre. Photo from an NWS employee. | Tree damage in Pierre. Photo from an NWS employee. | Tree damage in the Blunt area. Photo courtesy of the Blunt Rural Fire Department. | Downed tree in Lake Norden, as reported by the Hamlin County Sheriff's Office. |
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| One of many tree branches down throughout Watertown. Photo courtesy of Brent Nathaniel. | Rainbow as seen on the outskirts of Pierre. Photo from an NWS employee. |
Radar
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| Radar reflectivity overview of severe weather on June 20th, 2022 | Radar reflectivity (top) and velocity (bottom) at 728pm, 6-20-2022, showing significantly severe winds in and around Pierre, SD |
Storm Reports
Below is an overview of preliminary reports of severe weather. Find an interactive map that details each report here.
Alternatively, find a listing of preliminary reports below.
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE ABERDEEN SD 1250 PM CDT TUE JUN 21 2022 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0550 PM TSTM WND GST 7 SSW CHARLESVILLE 45.86N 96.34W 06/20/2022 E50 MPH TRAVERSE MN PUBLIC HEAVY RAIN. 0550 PM HAIL 8 E WHEATON 45.83N 96.34W 06/20/2022 E0.88 INCH TRAVERSE MN PUBLIC NICKEL HAIL, NO WIND. 0652 PM TSTM WND GST 3 S BUNKER 44.20N 101.10W 06/20/2022 M85 MPH STANLEY SD MESONET PERSONAL WEATHER STATION. 0707 PM HAIL 2 NNW MURDO 43.91N 100.73W 06/20/2022 U0.50 INCH JONES SD PUBLIC REPORT FROM MPING: HALF-INCH (0.50 IN.). 0713 PM HAIL DRAPER 43.93N 100.54W 06/20/2022 E0.70 INCH JONES SD PUBLIC 0721 PM TSTM WND GST 10 SW CHANTLER CREEK RE 44.39N 100.77W 06/20/2022 M71 MPH STANLEY SD MESONET MESONET STATION 202 HAYES (SDDOT). 0725 PM TSTM WND GST 10 SW CHANTLER CREEK RE 44.39N 100.77W 06/20/2022 M82 MPH STANLEY SD MESONET MESONET STATION 202 HAYES (SDDOT). 0727 PM TSTM WND GST 1 E PIERRE REGIONAL AIR 44.38N 100.28W 06/20/2022 M79 MPH HUGHES SD ASOS ADDITIONAL COMMENTS ADDED: POWERLINES DOWN, ROOF DAMAGE AND TREES DOWN IN PIERRE AREA. 0730 PM TSTM WND GST 1 SW TIMBER LAKE 45.42N 101.09W 06/20/2022 M58 MPH DEWEY SD MESONET 0732 PM TSTM WND GST FORT PIERRE 44.36N 100.38W 06/20/2022 M72 MPH STANLEY SD MESONET 0733 PM TSTM WND GST PIERRE 44.37N 100.35W 06/20/2022 M61 MPH HUGHES SD MESONET 0745 PM TSTM WND GST 6 SW JOE CREEK REC AREA 44.08N 99.87W 06/20/2022 M58 MPH LYMAN SD MESONET MESONET STATION 285 14W LOWER BRULE (SDDOT). 0749 PM TSTM WND GST 4 WSW BLUNT 44.50N 100.07W 06/20/2022 M72 MPH HUGHES SD MESONET MESONET STATION 185 BLUNT (SDDOT). 0801 PM TSTM WND GST 1 ENE HARROLD 44.53N 99.72W 06/20/2022 M61 MPH HUGHES SD MESONET MESONET STATION 19 HARROLD (SDDOT). 0808 PM TSTM WND GST 1 NE STEPHAN 44.26N 99.44W 06/20/2022 M59 MPH HYDE SD MESONET MESONET STATION 183 MACS CORNER (SDDOT). 0825 PM TSTM WND GST 18 S SENECA 44.81N 99.55W 06/20/2022 E80 MPH HYDE SD PUBLIC RELAYED BY EMERGENCY MANAGER. 0830 PM TSTM WND GST 17 W POLO 44.78N 99.45W 06/20/2022 M79 MPH HYDE SD MESONET MESONET STATION 215 JCT SD47/SD26 (SDDOT). 0830 PM TSTM WND DMG TORONTO 44.57N 96.64W 06/20/2022 DEUEL SD EMERGENCY MNGR SEVERAL 2 TO 4 INCH BRANCHES DOWN IN TOWN. TIME ESTIMATED ON RADAR. 0840 PM HAIL 8 SSE VAYLAND 44.39N 98.72W 06/20/2022 E1.75 INCH HAND SD TRAINED SPOTTER 0900 PM TSTM WND GST 2 N BRENTWOOD COLONY 45.15N 99.31W 06/20/2022 E67 MPH FAULK SD MESONET PERSONAL WEATHER STATION. 0900 PM TSTM WND GST 8 NE NORBECK 45.27N 99.09W 06/20/2022 M63 MPH EDMUNDS SD MESONET 0931 PM TSTM WND GST ABERDEEN REGIONAL AIRPO 45.45N 98.42W 06/20/2022 M67 MPH BROWN SD ASOS 0933 PM TSTM WND GST 1 W RICHMOND LAKE REC A 45.54N 98.64W 06/20/2022 E70 MPH BROWN SD NWS EMPLOYEE 0946 PM TSTM WND GST 2 S LILY 45.15N 97.68W 06/20/2022 M62 MPH DAY SD PUBLIC 0947 PM TSTM WND GST ABERDEEN 45.47N 98.48W 06/20/2022 E80 MPH BROWN SD TRAINED SPOTTER 0950 PM TSTM WND GST VIENNA 44.70N 97.50W 06/20/2022 E60 MPH CLARK SD TRAINED SPOTTER 0953 PM TSTM WND GST 6 W HENRY 44.88N 97.58W 06/20/2022 M64 MPH CLARK SD MESONET 0958 PM TORNADO BRYANT 44.59N 97.47W 06/20/2022 HAMLIN SD STORM CHASER 1000 PM HAIL 7 SSE WEBSTER 45.26N 97.45W 06/20/2022 M1.00 INCH DAY SD TRAINED SPOTTER 1007 PM TSTM WND GST 7 S BRITTON 45.70N 97.77W 06/20/2022 E50 MPH MARSHALL SD TRAINED SPOTTER 1012 PM TSTM WND GST WATERTOWN AIRPORT 44.91N 97.17W 06/20/2022 M67 MPH CODINGTON SD ASOS 1012 PM TSTM WND DMG HENRY 44.88N 97.46W 06/20/2022 CODINGTON SD PUBLIC 1 INCH DIAMETER TREE BRANCHES DOWN. 1024 PM TSTM WND GST 1 NW TUNERVILLE 44.90N 96.69W 06/20/2022 M60 MPH DEUEL SD MESONET 1027 PM TSTM WND GST 6 SSW PEEVER 45.46N 96.99W 06/20/2022 M65 MPH ROBERTS SD MESONET 1027 PM TSTM WND GST SISSETON MUNICIPAL AIRP 45.67N 97.00W 06/20/2022 M58 MPH ROBERTS SD ASOS 1035 PM TSTM WND DMG 1 NE MILBANK 45.23N 96.62W 06/20/2022 GRANT SD EMERGENCY MNGR MANY TREES SNAPPED AND UPROOTED AT THE CEMETERY NORTHEAST OF MILBANK. ALSO ONE TWO-STALL SHED DESTROYED AND ANOTHER OUTBUILDING WITH ROOF DAMAGE. 1042 PM TSTM WND GST 1 W ODESSA 45.26N 96.34W 06/20/2022 M71 MPH BIG STONE MN MESONET TIME ESTIMATED BASE ON RADAR. 1050 PM TSTM WND DMG 3 SW DUMONT 45.69N 96.46W 06/20/2022 TRAVERSE MN PUBLIC BRANCHES DOWN, ONE TREE SNAPPED, A COUPLE POLES SNAPPED HOLDING A 9 INCH ELK FENCE. ESTIMATED WINDS AROUND 60MPH. 1050 PM TSTM WND GST 3 WSW GRACEVILLE 45.56N 96.49W 06/20/2022 M71 MPH BIG STONE MN MESONET 1052 PM TSTM WND GST 7 ESE CLINTON 45.42N 96.31W 06/20/2022 M58 MPH BIG STONE MN MESONET 1054 PM TSTM WND GST 1 NNW DUMONT 45.73N 96.43W 06/20/2022 M67 MPH TRAVERSE MN MESONET 1104 PM TSTM WND GST 2 NNE DUMONT 45.74N 96.41W 06/20/2022 E60 MPH TRAVERSE MN TRAINED SPOTTER
Rainfall, Lightning
Below is a map of radar-estimated rainfall amounts from 2pm on the 20th through 2pm on the 21st.
Below is a plot of observed cloud-to-ground lightning strikes, as recorded by the National Lightning Detection Network (NLDN) over a 24 hour period ending at 6pm on 6-21-2022. Red icons indicate negatively charged lightning strikes, whereas red indicate positively charged lightning strikes.
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