Overview
A line of thunderstorms developed across Iowa and then turned into a derecho that moved through central Indiana during the afternoon of June 29. Widespread wind damage occurred, with reports of wind gusts over 70 mph. Numerous power outages occurred, with some areas remaining without power for several days.Radar
Selected Images from the Event
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| Radar/Base Velocity Image at 2:46 PM EDT | Zoomed in Radar/Base Velocity Image at 3:41 PMEDT. Radar shows the 70 mph winds that were observed at Indy airport | Radar/Base Velocity Image at 4:20 PM EDT |
Note: The Base Velocity radar image has a special color curve to highlight severe level velocities
Radar Loop of the Event (Link to Video on YouTube):
Storm Reports
Below are reports received by NWS Indianapolis.
Preliminary Local Storm Report...Summary
National Weather Service Indianapolis IN
1027 PM EDT Thu Jun 29 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0619 AM Hail 1 NNE North Terre Haute 39.55N 87.35W
06/29/2023 E1.00 inch Vigo IN Public
Report from mPING: Quarter (1.00 in.).
0717 AM Hail Sullivan 39.10N 87.41W
06/29/2023 E1.00 inch Sullivan IN Public
Time estimated via radar.
0743 AM Tstm Wnd Dmg 1 ENE Vincennes Univers 38.69N 87.51W
06/29/2023 Knox IN Emergency Mngr
Tree of unknown size or condition downed on
Niblack Road. Time estimated from radar.
0743 AM Tstm Wnd Dmg 1 ENE Vincennes Univers 38.69N 87.51W
06/29/2023 Knox IN Emergency Mngr
Tree of unknown size or condition downed on
Niblack Road. Time estimated from radar.
0745 AM Hail 4 SSW Vincennes 38.61N 87.53W
06/29/2023 E1.75 inch Knox IN Emergency Mngr
Two reports near the same location.
0749 AM Hail Worthington 39.12N 86.98W
06/29/2023 E1.00 inch Greene IN 911 Call Center
Relayed to dispatch via social media. Time
estimated via radar.
1125 AM Hail 4 N Pimento 39.37N 87.39W
06/29/2023 E1.75 inch Vigo IN Public
Time estimated from radar.
0252 PM Tstm Wnd Dmg Covington 40.14N 87.40W
06/29/2023 Fountain IN Public
Delayed report of a large tree down on a
house in Covington. Time estimated via
radar.
0258 PM Tstm Wnd Dmg Kingman 39.97N 87.28W
06/29/2023 Fountain IN Public
Tree branches reported down in Kingman. Time
estimated via radar.
0259 PM Tstm Wnd Dmg Veedersburg 40.11N 87.26W
06/29/2023 Fountain IN Public
Delayed report of a large tree down on a
house in Veedersburg. Time estimated via
radar.
0300 PM Tstm Wnd Dmg 2 NNW Attica 40.31N 87.26W
06/29/2023 Warren IN Public
Large branches downed and blocking Milligan
Hill Road. Time estimated via radar.
0300 PM Tstm Wnd Dmg 2 S Terre Haute 39.44N 87.39W
06/29/2023 Vigo IN Amateur Radio
Multiple HAM radio operators report
widespread trees and powerlines down in
Terre Haute. Estimated 70-80mph winds.
0304 PM Tstm Wnd Dmg 4 S Attica 40.23N 87.25W
06/29/2023 Fountain IN Public
Report of multiple trees down in between
Attica and Veedersburg. Time estimated via
radar.
0305 PM Tstm Wnd Dmg 2 N Indiana State Unive 39.50N 87.41W
06/29/2023 Vigo IN Amateur Radio
Large tree fell onto a house. Powerlines
also down at 8th and Indiana in Terre Haute.
0305 PM Tstm Wnd Gst 1 WNW North Terre Haute 39.55N 87.38W
06/29/2023 E65 MPH Vigo IN Public
65 MPH GUST ESTIMATED AT SKY KING AIRPORT.
0306 PM Tstm Wnd Dmg 3 N Pimento 39.35N 87.39W
06/29/2023 Vigo IN Public
Damage to a metal building reported. Photo
from social media shows walls collapsed and
roof blown back. Time estimated via radar.
0306 PM Tstm Wnd Dmg 1 ESE Terre Haute 39.47N 87.37W
06/29/2023 Vigo IN Public
Large tree down on Ohio Blvd blocking all
lanes.
0315 PM Tstm Wnd Dmg 3 NW Center Point 39.44N 87.12W
06/29/2023 Clay IN Trained Spotter
part of roof ripped from building. Time
estimated from radar.
0315 PM Tstm Wnd Gst 2 N New Market 39.98N 86.92W
06/29/2023 M74 MPH Montgomery IN AWOS
AWOS station KCFJ Crawfordsville.
0316 PM Tstm Wnd Dmg 3 W Roachdale 39.85N 86.85W
06/29/2023 Putnam IN Public
Social media report of roof damage to a
structure and multiple trees down off of
231. Time estimated via radar.
0320 PM Tstm Wnd Dmg 2 SSE Groveland 39.73N 86.71W
06/29/2023 Putnam IN Public
Tree on a dwelling in Heritage Lake, no
injuries reported. Time estimated via radar.
0320 PM Tstm Wnd Dmg 1 NW Brazil 39.53N 87.13W
06/29/2023 Clay IN Trained Spotter
porch collapse and tree on house, trees down
in the area.
0325 PM Tstm Wnd Dmg 1 SSE Ladoga 39.91N 86.80W
06/29/2023 Montgomery IN NWS Employee
Power pole snapped and trees down just south
of Lagoda. Time estimated via radar.
0326 PM Tstm Wnd Gst North Salem 39.86N 86.64W
06/29/2023 M63 MPH Hendricks IN Trained Spotter
0330 PM Tstm Wnd Dmg 2 WNW Edwardsport 38.83N 87.29W
06/29/2023 Knox IN Emergency Mngr
Part of roof came off barn. Time estimated
from radar.
0330 PM Tstm Wnd Dmg Greencastle 39.64N 86.84W
06/29/2023 Putnam IN Emergency Mngr
Power out for half of Greencastle due to
storms. Numerous trees down. Some barns have
lost roofs.
0335 PM Tstm Wnd Dmg 3 NNW New Ross 40.01N 86.73W
06/29/2023 Montgomery IN Trained Spotter
Large branches down East of 74 on 200 S.
0336 PM Tstm Wnd Dmg 1 SSW Lafayette 40.39N 86.88W
06/29/2023 Tippecanoe IN Public
Multiple trees reported down in Lafayette.
Time estimated via radar.
0340 PM Tstm Wnd Dmg 1 WNW Plainfield 39.71N 86.41W
06/29/2023 Hendricks IN Public
Report from mPING: 1-inch tree limbs broken.
0340 PM Tstm Wnd Dmg 4 SW Zionsville 39.91N 86.33W
06/29/2023 Marion IN Public
Trees down blocking 86th/1000N on
Marion/Hendricks County Line.
0341 PM Tstm Wnd Dmg 3 NW Martinsville 39.46N 86.45W
06/29/2023 Morgan IN Public
Large tree branches down on Wilbur Road
north of Martinsville. Time estimated via
radar.
0342 PM Tstm Wnd Dmg Frankfort 40.28N 86.51W
06/29/2023 Clinton IN Public
Large tree fell on a car, was unoccupied at
the time. Numerous power lines down across
Frankfort.
0345 PM Tstm Wnd Dmg 3 SSE Indianapolis Int` 39.68N 86.27W
06/29/2023 Marion IN Public
Trees blocking Furnas Road just off S High
School Road. Time estimated via radar.
0345 PM Tstm Wnd Dmg 1 SE Indianapolis Int`l 39.71N 86.28W
06/29/2023 Marion IN NWS Employee
Large tree branch down in the NWS IND
parking lot.
0345 PM Tstm Wnd Dmg 3 WNW Advance 40.01N 86.67W
06/29/2023 Boone IN Trained Spotter
Small tree and large lims down on 200 S in
West of Lebanon and South of State Road 39.
0345 PM Tstm Wnd Dmg Ellettsville 39.23N 86.63W
06/29/2023 Monroe IN Public
Tree on house. Time estimated from radar.
0347 PM Tstm Wnd Gst 1 SW Indianapolis Int`l 39.72N 86.30W
06/29/2023 M70 MPH Marion IN ASOS
ASOS station KIND Indianapolis.
0348 PM Tstm Wnd Dmg 3 WNW Carmel 39.98N 86.16W
06/29/2023 Hamilton IN Public
Time estimated. Several medium sized tree
limbs knocked down.
0348 PM Tstm Wnd Gst 3 WSW Whitehall 39.15N 86.62W
06/29/2023 M58 MPH Monroe IN ASOS
ASOS station KBMG Bloomington.
0350 PM Tstm Wnd Dmg 2 WNW Monument Circle 39.78N 86.20W
06/29/2023 Marion IN Public
Corrects previous tstm wnd dmg report from 2
WNW Monument Circle. Multiple large tree
branches down between 10th and 16th street
along Belmont Avenue. Time estimated via
radar.
0350 PM Tstm Wnd Dmg 2 SSE Bloomington 39.14N 86.51W
06/29/2023 Monroe IN Emergency Mngr
Several trees and power lines down across
Monroe County. Duke Energy reports
widespread outages from the storms. Time
estimated from radar.
0350 PM Tstm Wnd Dmg 1 WNW Plainfield 39.71N 86.40W
06/29/2023 Hendricks IN Public
Report from mPING: Trees uprooted or
snapped.
0352 PM Tstm Wnd Dmg 2 ENE Indianapolis 39.79N 86.11W
06/29/2023 Marion IN Public
Large trees and powerlines down in Brookside
Park. Time estimated via radar.
0354 PM Tstm Wnd Dmg Bargersville 39.52N 86.17W
06/29/2023 Johnson IN Public
Large tree downed in Bargersville, power
lines down with it.
0355 PM Tstm Wnd Dmg 1 SE Rocky Ripple 39.84N 86.16W
06/29/2023 Marion IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken. Time estimated from
radar.
0355 PM Tstm Wnd Gst 6 NNE Zionsville 40.03N 86.25W
06/29/2023 M59 MPH Boone IN AWOS
AWOS station KTYQ Indianapolis Exc.
0357 PM Tstm Wnd Dmg 1 SSE North Crows Nest 39.85N 86.15W
06/29/2023 Marion IN Public
Report from mPING: Trees uprooted or
snapped.
0358 PM Tstm Wnd Dmg 2 NNE Fishers 39.99N 86.01W
06/29/2023 Hamilton IN NWS Employee
Estimated 60 mph squalls. Six inch diameter
tree downed.
0359 PM Tstm Wnd Dmg 2 NW Beech Grove 39.73N 86.11W
06/29/2023 Marion IN Public
Report from mPING: 1-inch tree limbs broken.
0359 PM Tstm Wnd Dmg 1 WSW Warren Park 39.77N 86.07W
06/29/2023 Marion IN Public
Report from mPING: 1-inch tree limbs broken.
0400 PM Tstm Wnd Dmg 1 NW Spring Mill State 38.74N 86.43W
06/29/2023 Lawrence IN Public
Large tree uprooted along Mill Creek Road in
Mitchell. Time estimated via radar.
0400 PM Tstm Wnd Dmg 4 W Greenwood 39.61N 86.20W
06/29/2023 Johnson IN Public
Numerous large branches down. Time estimated
from radar.
0402 PM Tstm Wnd Dmg 1 SSE Monument Circle 39.75N 86.15W
06/29/2023 Marion IN Public
numerous large branches down across the
Bates Hendricks neighborhood.
0405 PM Tstm Wnd Dmg 1 E Bedford 38.86N 86.48W
06/29/2023 Lawrence IN Public
Fallen tree on car at D/18th Streets. Time
estimated from radar.
0409 PM Tstm Wnd Dmg 2 NW Zionsville 39.97N 86.30W
06/29/2023 Boone IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken.
0409 PM Tstm Wnd Dmg 4 SW Columbus 39.17N 85.97W
06/29/2023 Bartholomew IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken.
0410 PM Tstm Wnd Dmg 1 ENE Rockville 39.77N 87.21W
06/29/2023 Parke IN Emergency Mngr
Parke County EMA reports damage to several
buildings. Lots of trees down in roads,
including 36 and 59.
0415 PM Tstm Wnd Dmg 6 SSW Columbus 39.14N 85.96W
06/29/2023 Bartholomew IN Public
Tree down in the right lane of I-65
southbound near IN-58. Reports of semi
trucks impacted.
0415 PM Tstm Wnd Gst 4 SW Columbus 39.17N 85.96W
06/29/2023 M60 MPH Bartholomew IN Trained Spotter
Corrects previous tstm wnd gst report from 4
SW Columbus. Measured gust of 60mph.
0417 PM Tstm Wnd Dmg 2 W Greenfield 39.79N 85.81W
06/29/2023 Hancock IN Public
Report from mPING: 3-inch tree limbs broken;
Power poles broken. Time estimated from
radar.
0418 PM Tstm Wnd Dmg 1 SW Greenfield 39.79N 85.78W
06/29/2023 Hancock IN Public
Trees reported down on North Street. Public
estimates 70mph wind gust.
0420 PM Tstm Wnd Dmg 1 SW Shelbyville 39.52N 85.78W
06/29/2023 Shelby IN Public
Report from mPING: Trees uprooted or
snapped. Time estimated from radar.
0425 PM Tstm Wnd Dmg Seymour 38.96N 85.89W
06/29/2023 Jackson IN Public
Report on social media of roof damage and a
collapsed chimney in Seymour. Time estimated
via radar.
0425 PM Tstm Wnd Dmg 2 E Saint Paul 39.42N 85.59W
06/29/2023 Decatur IN Emergency Mngr
Trees and power poles reported down in NW
Decatur County by EM.
0432 PM Tstm Wnd Dmg 2 SSW Milroy 39.47N 85.48W
06/29/2023 Rush IN Emergency Mngr
*** 1 INJ ***
Tree fell on car with occupants, one person
injured. Time estimated from radar.
Environment
A mid level jet and an influx of unstable air allowed a line of storms to move from Iowa into central Indiana.
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| Figure 1: Surface Fronts at 2 PM EDT | Figure 2: 500mb Plot at 3:00 PM EDT | Figure 3: Most Unstable CAPE at 3:00 PM EDT |
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| Figure 4: Downdraft CAPE at 3:00 PM EDT | Figure 5: Mid Level Lapse Rates at 3:00 PM EDT | Figure 6: Effective Shear at 3:00 PM EDT |
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