Widespread Wind Damage
Bow Echo - June 21st, 2013
Summary:
A powerful complex of thunderstorms, known as a bow echo, moved across parts of central and northeast South Dakota and west central Minnesota during the afternoon hours of June 21st, 2013. Damaging winds around 90 mph at times uprooted large trees and caused considerable structural damage and loss of power to those in its path. The worst wind damage was located near Lake Poinsett, Watertown, Milbank and Ortonville, MN. A survey team checked out a few of these locations on Monday June 24th and confirmed the strong wind damage, with estimated wind speeds of around 90 mph in the areas of the worst damage. Some of the more notable damage included a downtown Ortonville building constructed in 1919 that lost its roof and affected 10 businesses, the bowling alley in Clear Lake that lost its roof, numerous pole barns destroyed, and countless trees that were uprooted into homes, cabins and trailers. Along with the straight line wind damage, embedded tornadoes also developed along the leading edge of the line of storms. Three brief touchdowns were confirmed. The first was around 1:59 PM about 8 miles northwest of Miller, and the second tornado was reported around 2:55 PM and was approximately 2 miles northwest of Carpenter in southern Clark County. A third tornado was reported 5 miles west northwest of Lake Norden at 334 pm. Tornado damage was difficult to assess as the strong straight line winds associated with the bow echo dominated the damage signatures or the tornados were reported in open agricultural fields.
Damage Photos (click to enlarge):
Clear Lake
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Lake Poinsett North
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Lake Poinsett South
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Big Stone County
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Clark County Tornado
Courtesy of Bill Doms |
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Radar Imagery, Etc. (click to enlarge):
0.5 Degree Reflectivity Loop of Event |
MODIS "False Color" Satellite Imagery from Wednesday, July 17th, 2013 |
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All Storm Reports from June 21, 2013:
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ABERDEEN SD
713 PM CDT FRI JUN 21 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 AM TSTM WND GST 5 SW OKATON 43.83N 100.96W
06/21/2013 E60 MPH JONES SD PUBLIC
60 PLUS MPH WINDS WITH DIME SIZE HAIL.
1140 AM TSTM WND GST 3 W OKATON 43.88N 100.95W
06/21/2013 E70 MPH JONES SD PUBLIC
1155 AM TSTM WND GST MURDO 43.89N 100.71W
06/21/2013 M68 MPH JONES SD MESONET
REPORTED BY MESONET STATION IN MURDO
1200 PM TSTM WND GST 8 E MURDO 43.89N 100.55W
06/21/2013 E60 MPH JONES SD TRAINED SPOTTER
1200 PM HAIL MURDO 43.89N 100.71W
06/21/2013 E1.00 INCH JONES SD BROADCAST MEDIA
1212 PM HAIL 1 E KELDRON 45.93N 101.79W
06/21/2013 E1.50 INCH CORSON SD PUBLIC
1225 PM HAIL MORRISTOWN 45.94N 101.72W
06/21/2013 E2.75 INCH CORSON SD EMERGENCY MNGR
1239 PM TSTM WND GST 13 N VIVIAN 44.12N 100.29W
06/21/2013 M75 MPH LYMAN SD MESONET
1242 PM HAIL 9 E MORRISTOWN 45.94N 101.53W
06/21/2013 E2.00 INCH CORSON SD PUBLIC
1244 PM HAIL 3 E PIERRE 44.37N 100.26W
06/21/2013 E1.00 INCH HUGHES SD TRAINED SPOTTER
1256 PM HAIL 2 E HIGHMORE 44.52N 99.40W
06/21/2013 E1.00 INCH HYDE SD EMERGENCY MNGR
0120 PM TSTM WND GST 2 W OACOMA 43.80N 99.42W
06/21/2013 M58 MPH LYMAN SD MESONET
0123 PM TORNADO 2 N TULARE 44.77N 98.51W
06/21/2013 SPINK SD EMERGENCY MNGR
SMALL TORNADO REPORTED NEAR TULARE
0125 PM TSTM WND GST 1 W STEPHAN 44.25N 99.47W
06/21/2013 E70 MPH HYDE SD LAW ENFORCEMENT
0125 PM HAIL 1 W STEPHAN 44.25N 99.47W
06/21/2013 E1.00 INCH HYDE SD LAW ENFORCEMENT
0127 PM HAIL 7 W TULARE 44.74N 98.65W
06/21/2013 E1.00 INCH SPINK SD PUBLIC
LOT OF HAIL
0140 PM HAIL 8 NW MILLER 44.60N 99.10W
06/21/2013 E1.00 INCH HAND SD TRAINED SPOTTER
0148 PM FUNNEL CLOUD 1 NW MILLER 44.53N 99.00W
06/21/2013 HAND SD TRAINED SPOTTER
0155 PM TSTM WND DMG REE HEIGHTS 44.52N 99.20W
06/21/2013 HAND SD COCORAHS
SEVERAL MEDIUM SIZE BRANCHES DOWN
0158 PM TORNADO 10 N MILLER 44.66N 98.99W
06/21/2013 HAND SD LAW ENFORCEMENT
BRIEF TOUCHDOWN
0200 PM TSTM WND GST 6 E DANFORTH 44.25N 98.76W
06/21/2013 M85 MPH HAND SD MESONET
0205 PM FLASH FLOOD TULARE 44.74N 98.51W
06/21/2013 SPINK SD EMERGENCY MNGR
MAJOR STREET FLOODING IN TULARE.
0208 PM HAIL HENRY 44.88N 97.46W
06/21/2013 E1.00 INCH CODINGTON SD TRAINED SPOTTER
QUARTER SIZE HAIL.
0209 PM TORNADO GLENDALE COLONY 44.80N 98.29W
06/21/2013 SPINK SD LAW ENFORCEMENT
BRIEF TOUCHDOWN
0213 PM HAIL 2 SW MILLER 44.50N 99.02W
06/21/2013 E0.88 INCH HAND SD EMERGENCY MNGR
0215 PM TSTM WND DMG 2 W MILLER 44.52N 99.03W
06/21/2013 HAND SD LAW ENFORCEMENT
2 LARGE FUEL TANKS BLOWN OVER
0217 PM HAIL WATERTOWN 44.91N 97.17W
06/21/2013 E0.88 INCH CODINGTON SD LAW ENFORCEMENT
NICKEL HAIL AT LAKE KAMPESKA
0220 PM TSTM WND DMG SPINK COLONY 44.75N 98.29W
06/21/2013 SPINK SD EMERGENCY MNGR
WIND DAMAGE TO A BUILDING AND WINDOWS. TREES ALSO
DAMAGED.
0222 PM HAIL 3 N MILLER 44.56N 98.99W
06/21/2013 E1.00 INCH HAND SD LAW ENFORCEMENT
HEAVY RAIN ALSO REPORTED
0222 PM TSTM WND GST 3 N MILLER 44.56N 98.99W
06/21/2013 E55 MPH HAND SD LAW ENFORCEMENT
HEAVY RAIN ALSO REPORTED
0223 PM HAIL 2 SW HENRY 44.86N 97.49W
06/21/2013 E0.50 INCH CLARK SD TRAINED SPOTTER
0225 PM HAIL 6 W HILLSIDE COLONY 44.74N 98.17W
06/21/2013 M4.00 INCH SPINK SD PUBLIC
HAILED FOR APPX 15 MINUTES...PUBLIC REPORT RELAYED FROM
NSSL SHAVE
0245 PM FLASH FLOOD 11 SSE MILLER 44.37N 98.90W
06/21/2013 HAND SD EMERGENCY MNGR
CULVERT WASHED OUT BY FLOOD WATERS.
0254 PM TSTM WND GST FORDHAM COLONY 44.77N 97.91W
06/21/2013 E76 MPH CLARK SD EMERGENCY MNGR
WIND GUSTS REPORTED 70 TO 76 MPH
0255 PM TORNADO 2 NW CARPENTER 44.66N 97.94W
06/21/2013 CLARK SD PUBLIC
0255 PM NON-TSTM WND GST 1 WSW GETTYSBURG 45.00N 99.97W
06/21/2013 M72 MPH POTTER SD MESONET
0308 PM TORNADO 4 S FORDHAM COLONY 44.71N 97.91W
06/21/2013 CLARK SD PUBLIC
TORNADO IS RAIN WRAPPED WITH OVER 100 MPH INFLOW WINDS
BEING REPORTED.
0310 PM TSTM WND DMG VIENNA 44.70N 97.50W
06/21/2013 CLARK SD EMERGENCY MNGR
TREES DOWN BLOCKING HIWAY. TREES ALSO DOWN AT WILLOW
LAKE. 2 TO 3 MILES EAST OF WILLOW LAKE A GRAIN BIN
COLLAPSED.
0330 PM HAIL 3 W LAKE NORDEN 44.58N 97.27W
06/21/2013 E2.50 INCH HAMLIN SD EMERGENCY MNGR
0333 PM NON-TSTM WND DMG 5 S SELBY 45.43N 100.03W
06/21/2013 WALWORTH SD PUBLIC
PICKUP AND CAMPER BLOWN OFF HIGHWAY BY STRONG EAST
WINDS.
0334 PM TORNADO 5 WNW LAKE NORDEN 44.61N 97.30W
06/21/2013 HAMLIN SD PUBLIC
RAIN WRAPPED TORNADO REPORTED
0337 PM TSTM WND GST 2 W LAKE NORDEN 44.58N 97.25W
06/21/2013 E65 MPH HAMLIN SD EMERGENCY MNGR
SOME TREE DAMAGE ALSO REPORTED
0340 PM TSTM WND GST 4 S GARDEN CITY 44.90N 97.58W
06/21/2013 E60 MPH CLARK SD TRAINED SPOTTER
0343 PM TSTM WND DMG 3 W STONE BRIDGE 44.60N 97.12W
06/21/2013 HAMLIN SD STORM CHASER
MAJOR DAMAGE REPORTED TO BUILDINGS AND BARRNS AT THE
INTERSECTION OF HIGHWAYS 81 AND 28
0343 PM TSTM WND DMG HAZEL 44.76N 97.38W
06/21/2013 HAMLIN SD PUBLIC
MANY ROADS IN HAZEL BLOCKED BY DOWNED TREES.
0351 PM TSTM WND GST 1 NW LAKE NORDEN 44.59N 97.22W
06/21/2013 E80 MPH HAMLIN SD PUBLIC
0400 PM TSTM WND DMG 4 S GARDEN CITY 44.90N 97.58W
06/21/2013 CLARK SD TRAINED SPOTTER
10 INCH DIAMETER TREE BRANCH DOWN ON GARAGE ROOF
0405 PM TSTM WND GST WATERTOWN 44.91N 97.17W
06/21/2013 E70 MPH CODINGTON SD EMERGENCY MNGR
EMERGENCY MANAGER ESTIMATED WINDS TO 70 MPH NEAR LAKE
KAMPESKA
0407 PM TSTM WND GST WATERTOWN 44.91N 97.17W
06/21/2013 M64 MPH CODINGTON SD ASOS
0410 PM TSTM WND GST WATERTOWN 44.91N 97.17W
06/21/2013 M82 MPH CODINGTON SD ASOS
0425 PM TSTM WND DMG CLEAR LAKE 44.77N 96.68W
06/21/2013 DEUEL SD TRAINED SPOTTER
TRAINED SPOTTER REPORTED MAJOR TREE AND STRUCTURAL
DAMAGE IN AND AROUND CLEAR LAKE
0435 PM FLASH FLOOD WATERTOWN 44.91N 97.17W
06/21/2013 CODINGTON SD EMERGENCY MNGR
EMERGENCY MANAGER REPORTS MAJOR STREET FLOODING IN
WATERTOWN.
0450 PM TSTM WND DMG 2 N MILBANK 45.25N 96.63W
06/21/2013 GRANT SD TRAINED SPOTTER
WIND DAMAGE STARTED 2 MILES NORTH OF MILBANK AND
CONTINUED SOUTH INTO TOWN ON STATE HIGHWAY 15
0455 PM TSTM WND DMG MILBANK 45.22N 96.63W
06/21/2013 GRANT SD LAW ENFORCEMENT
LAW ENFORCEMENT REPORTS MAJOR TREE AND STRUCTURAL
DAMAGE IN AND AROUND MILBANK
0505 PM TSTM WND DMG 1 N ORTONVILLE 45.32N 96.44W
06/21/2013 BIG STONE MN CO-OP OBSERVER
ESTIMATED WIND 80 PLUS MPH. SEVERAL LARGE MATURE TREES
DOWN.
0505 PM TSTM WND GST 1 W ODESSA 45.26N 96.35W
06/21/2013 M66 MPH BIG STONE MN MESONET
TIME BASED OFF OF RADAR
0510 PM TSTM WND GST ORTONVILLE 45.30N 96.44W
06/21/2013 M63 MPH BIG STONE MN ASOS
0510 PM TSTM WND DMG 3 S CORONA 45.29N 96.77W
06/21/2013 GRANT SD TRAINED SPOTTER
TREE TOPPED AND BRANCHES DOWN
0514 PM TSTM WND GST 6 ESE ORTONVILLE 45.27N 96.33W
06/21/2013 M66 MPH BIG STONE MN MESONET
0519 PM TSTM WND DMG ORTONVILLE 45.30N 96.44W
06/21/2013 BIG STONE MN LAW ENFORCEMENT
SEVERAL TREES AND POWER LINES DOWN. PART OF A ROOF AND
WALL OF A BUIDING DAMAGED.
0545 PM TSTM WND DMG ORTONVILLE 45.30N 96.44W
06/21/2013 BIG STONE MN EMERGENCY MNGR
EM REPORTS MAJOR DAMAGE IN AND AROUND ORTONVILLE WITH
NUMEROUS TREES DOWN... ROOFS DESTROYED AND GRAIN BINS
DAMAGED. EVENT STARTED AROUND 510 PM AND CONTINUED
THROUGH 545 PM.
Meteorological Analysis (click to enlarge):
The images below depict the synoptic and mesoscale environment at 2000 UTC (3PM CDT) – or right around when the strongest winds hit the Hayti, Lake Norden, Lake Poinsett, Castlewood, and Clear Lake areas.
20Z - Surface MSLP, Temperature, Dewpoint |
20Z - Lowest 100mb MLCAPE
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20Z - 0-6KM Bulk Shear Magnitude
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20Z - Supercell Composite Parameter |
20Z - Craven/Brooks Significant Severe (MLCAPE*0-6KM Shear)
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20Z – Derecho Composite
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