Southwesterly surface winds ahead of an approaching cold front boosted dewpoints in the afternoon as high as 76 degrees at the Terre Haute and Indianapolis airports, and 77 degrees at Shelbyville. Resulting CAPE of 2000-3000 J/kg initiated thunderstorms over east-central Illinois, which tracked eastward into west-central Indiana.
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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 episode as NWS IND wrote it up.
Southwesterly surface winds ahead of an approaching cold front boosted dewpoints in the afternoon as high as 76 degrees at the Terre Haute and Indianapolis airports, and 77 degrees at Shelbyville. Resulting CAPE of 2000-3000 J/kg initiated thunderstorms over east-central Illinois, which tracked eastward into west-central Indiana. This cluster matured into a bow echo that produced a measured 68 mph gust at Crawfordsville before downing trees across the Indianapolis Metro, most notably the Beech Grove area.
The storms were maintained by 20-30 kts of 0-3 km wind shear, with wind damage reported through Rush County where several large trees were downed. Anomalously high precipitable water values around 2.15 inches promoted isolated heavy rainfall of 2.00 to 2.30 inches from south of Crawfordsville to northern portions of the Indianapolis Metro, although antecedent abnormally dry conditions prevented any flooding.
Finally, an early evening landspout tornado crossed from Vermillion County, Illinois into Warren County, Indiana, while producing no damage along the second half (Indiana portion) of its entire 4.76-mile track, resulting in an EFU rating in Indiana.
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 Indianapolis, IN wrote its last area forecast discussion before the first event at Jun 29, 11:03 AM EST, 3 hours 1 minute earlier. Its key messages:
Area Forecast Discussion National Weather Service Indianapolis IN 1203 PM EDT Sat Jun 29 2024 .KEY MESSAGES... - Rain showers and isolated thunderstorms through Saturday - Cooler Sunday and Monday, heat returns on Tuesday and Wednesday - Rain/storm chances return Wednesday onward && .FORECAST UPDATE... - Showers and Thunderstorms possible through this afternoon Surface analysis late this morning shows low pressure in place over the Great Lakes. A cold front extended southwest from the low stretching across southern WI and IA to northern MO. Cyclonic south- southwest flow was in place across Central Indiana. Radar shows a small thunderstorm complex stretching from Kokomo to Lebanon and Greencastle pushing east across Central Indiana. Recent satellite trends suggest warming or steady state tops with these storms as they continue to push east into a poor convective environment. Central Indiana remains in the warm sector as low temperatures failed to fall lower than the upper 70s to around 80. Abundant cloud cover across the area was preventing heating from rising quickly. HRRR this morning suggests the continued eastward progression of the ongoing thunderstorm complex along with diminishing trends over the next few hours. However the HRRR does suggest new convective development this afternoon over southern Indiana as daytime heating leads to some instability. Forecast soundings suggest CAPE over 2000 J/KG by mid to late afternoon along with a loss of the mid level capping inversion. Caveat will be cloud cover that may prevent full heating. Nonetheless, at least some afternoon pops appear warranted given the position within the warm sector. Thus will continue shower and thunderstorm chances this afternoon. Expect highs in the middle to upper 80s. && .MESOSCALE UPDATE... Issued at 737 AM EDT Sat Jun 29 2024 A thunderstorm complex from Kokomo to Crawfordsville and west of Vermillion county is expected to continue to progress south and east through the morning hours. At this time weak CIN remains in place ahead of the thunderstorms, limiting their potential growth. Thus at this time, the storms should remain sub-severe. Strongest cell of note appears west of Vermillion county and may contain some small hail. However even this cell has shown trends toward diminishing tops upon approach. Nonetheless, as this line pushes across Central Indiana through the morning hours, heavy rain, lightning and non severe wind gusts to 40 mph will be possible. && .SHORT TERM (Today and tonight)... Issued at 146 AM EDT Sat Jun 29 2024 Forcing for ascent this morning is primary from warm/moist advection preceding a low amplitude shortwave trough upstream. The effects of the shortwave itself are otherwise minimal on our atmosphere at this latitude. These are difficult patterns to forecast precision with regards to timing of convection. Current thinking is the anomalous moisture plume at both low levels and aloft will continue supporting scattered to numerous showers, and modest instability will support isolated thunder. A small midlevel vorticity maxima likely augmented by ongoing convection in Missouri may result in an uptick in convective coverage early this morning as it moves east and interacts with deeper moisture plume. In fact, some new convection and lightning strikes are occurring as of this writing in west-central Illinois. This will probably expand and reach Indiana around daybreak. There will probably be a decrease in coverage and intensity by late morning or midday as the core of the low level jet and moisture plume shifts eastward. Diurnal convection may increase ahead of the front late afternoon into the evening. CAPE/shear parameter space may be marginally supportive of a few strong to severe wind gusts. This should mean a relative minimum in convective coverage during the early-mid afternoon time frame. Temperatures should be similar to yesterday but richer influx of moisture will result in noticeably more humid conditions. As the low- amplitude shortwave trough passes, it will nudge a drier continental air mass in overnight along with modest cold advection bringing temperatures down slightly compared to previous nights. && .LONG TERM (Sunday through Friday)... Issued at 146 AM EDT Sat Jun 29 2024 Sunday and Monday... The low amplitude meridional pattern will continue through the long term. Initially, this will lead to cool, calm conditions with surface high pressure and upper level troughing for Sunday and Monday, and should allow for generally clear skies and highs around 80. Winds will veer post frontal passage today and continue to be northerly to northwesterly through Monday. With mostly clear skies and dew points in the 40s, overnight lows should be well below normal for both Sunday and Monday night. Current forecast is for lows in the 40s each night. Tuesday through Friday... The next phase of the this pattern will arrive mid week, with broad ridging developing aloft. By Tuesday, 850mb temps rise by about 5-10 degrees, which under full sun and efficient mixing corresponds to highs in the mid to upper 80s. The primary axis of warm air will then arrive Wednesday, with highs expected to be back into the 90s. This upper ridge will continue to remain aloft keeping temperatures above normal through the end of next week. Even though upper level ridging will be in place across the Ohio Valley, precipitation chances will still increase as a succession of weak waves develop within broad upper level diffluence in the right entrance region of the upper jet. This should lead to variable thunderstorm chances Wednesday through Friday, until a frontal boundary moves through late week, decreasing surface moisture. Its still too early to pinpoint specifics regarding timing and potency of thunderstorms Wednesday through Friday of next week. Ensemble guidance is highly variable on how the low level disturbances develop and pass through the Ohio Valley, of which will greatly influence surface conditions over central Indiana. For now, understand and prepare for thunderstorms to potentially interrupt holiday plans next week, and stay alert for updates as forecast confidence increases over the next several days. && .AVIATION (18Z TAF Issuance)... Issued at 1202 PM EDT Sat Jun 29 2024 Impacts: - Mainly VFR conditions - Brief MVFR conditions possible with any evening TSRA Discussion: Morning showers and thunderstorms have exited east of the TAF sites, but Central Indiana remains within the warm and humid sector ahead of the approaching cold front. For now, cloud cover upstream is expected to remain across Central Indiana through the afternoon and will prevent much in the way of diurnally driven shower and thunderstorm development. However this evening, as the cold front sags southward across Central Indiana, plentiful warm air and moisture will remain present. HRRR continues to suggest the development of new showers and storms along and ahead of the cold front this evening, mainly within the 23Z-03Z window. Thus have focused a VCSH window at that time with tempo groups for TSRA. Brief MVFR conditions will be possible with any TSRA that strikes a TAF site. In the wake of the cold front overnight, cooler and drier air is expected to arrive across Central Indiana. At that time forecast soundings appear to dry out amid subsidence. Thus have trended to VFR at that time with NW lower level flow. && .IND WATCHES/WARNINGS/ADVISORIES... None. && UPDATE...Puma SHORT TERM...BRB LONG TERM...Updike AVIATION...Puma
Hazardous Weather Outlook National Weather Service Indianapolis IN 259 AM EDT Sat Jun 29 2024 INZ021-028>031-035>049-051>057-060>065-067>072-300700- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam- Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby- Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess- Martin-Lawrence-Jackson-Jennings- 259 AM EDT Sat Jun 29 2024 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. There is a chance of thunderstorms today. A few storms could produce strong to severe wind gusts this afternoon, but the severe threat will be isolated. Lightning is a threat from any storm. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Thunderstorms are possible Tuesday through Saturday. The threat of severe storms is low, but isolated damaging wind gusts cannot be ruled out during this period. Lightning is a threat from any storm. .SPOTTER INFORMATION STATEMENT... Spotter activation is unlikely. && This product in graphical format...along with other weather... hydrological and climate information...at: http://www.weather.gov/erh/ghwo?wfo=ind http://www.weather.gov/ind
Special Weather Statement
National Weather Service Indianapolis IN
209 PM EDT Sat Jun 29 2024
INZ035-036-044-291845-
Montgomery IN-Fountain IN-Parke IN-
209 PM EDT Sat Jun 29 2024
...A strong thunderstorm will impact portions of southern Fountain,
northeastern Parke and west central Montgomery Counties through 245
PM EDT...
At 208 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles south of Covington, or 15 miles southeast of Danville, moving
east at 30 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Kingman, Wallace, and Yeddo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4004 8743 4006 8742 4007 8742 4007 8706
3988 8710 4000 8743 4003 8744
TIME...MOT...LOC 1808Z 285DEG 26KT 4003 8736
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
MESpecial Weather Statement
National Weather Service Indianapolis IN
245 PM EDT Sat Jun 29 2024
INZ035-036-044-045-291930-
Montgomery IN-Putnam IN-Fountain IN-Parke IN-
245 PM EDT Sat Jun 29 2024
...A strong thunderstorm will impact portions of southeastern
Fountain, northeastern Parke, southern Montgomery and northwestern
Putnam Counties through 330 PM EDT...
At 244 PM EDT, Doppler radar was tracking a strong thunderstorm 11
miles southeast of Veedersburg, or 15 miles west of Crawfordsville,
moving east at 35 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Crawfordsville, Ladoga, Roachdale, Bainbridge, New Market, Kingman,
Waveland, Russellville, New Ross, Marshall, Wallace, Alamo,
Carpentersville, Turkey Run State Park, Yeddo, and Shades State Park.
This includes Interstate 74 between mile markers 39 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4010 8723 4004 8670 3998 8669 3971 8680
3991 8737
TIME...MOT...LOC 1844Z 291DEG 30KT 3996 8717
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
MESpecial Weather Statement
National Weather Service Indianapolis IN
252 PM EDT Sat Jun 29 2024
INZ043>045-051-052-291930-
Clay IN-Putnam IN-Parke IN-Vermillion IN-Vigo IN-
252 PM EDT Sat Jun 29 2024
...A strong thunderstorm will impact portions of northern Vigo,
northwestern Clay, southern Parke, southwestern Vermillion and west
central Putnam Counties through 330 PM EDT...
At 252 PM EDT, Doppler radar was tracking a strong thunderstorm near
Vermilion, or 9 miles northwest of Terre Haute, moving east at 35
mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Terre Haute, Brazil, Clinton, West Terre Haute, Seelyville,
Knightsville, Rosedale, Harmony, Staunton, Carbon, Universal, Center
Point, Fontanet, Shepardsville, Lena, Bridgeton, North Terre Haute,
Indiana State University, and Sandford.
This includes Interstate 70 between mile markers 4 and 5, and between
mile markers 9 and 27.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3966 8753 3972 8698 3937 8705 3946 8753
TIME...MOT...LOC 1852Z 265DEG 29KT 3958 8748
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
METhe Indianapolis radar (KIND), 66 km away, was scanning. The volume nearest the first event began at 19:02 UTC.
9 thunderstorm wind, 1 tornado. Local standard time, as filed.
Thunderstorm winds downed multiple trees.
Thunderstorm winds measured 68 mph at KCFJ, Crawfordsville Regional Airport.
Thunderstorm winds downed several trees across northeastern Parke County.
Thunderstorm winds in the Danville area downed power lines and three trees onto a road, before snapping a large maple tree limb in Plainfield.
Thunderstorm winds downed trees onto both westbound lanes of US Highway 40.
Thunderstorm winds downed several large trees across Beech Grove, and downed numerous trees in a localized area near the intersection of Edgewood and Emerson Avenues where roof damage was also noted.
Thunderstorm winds snapped or uprooted several large and mature trees in far southeastern Marion County, with power poles also damaged.
Thunderstorm winds downed a tree across US Highway 52 near Morristown. Power outage also reported across Morristown.
Thunderstorm winds downed large trees across far north-central Rush County.
A storm chaser monitored a landspout tornado that maintained connection to the ground for much of its entire 4.76 mile track from far eastern Illinois into Indiana. The landspout started in Vermillion County, IL (in NWS Lincoln's area) at 1815 EST and crossed into Warren County, IN at 1823 EST. Minor EF0 damage was observed 750 feet west of the state line in Illinois, nonetheless the landspout was rated EFU along the entirety of the 2.25-mile (Indiana) portion of its track in Warren County where no damage was observed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2024Every state in 2024This day in weather historyThe tornado archive for Indiana, 2024Warnings in Indiana, June 2024
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: 1178280, 1178291, 1178281, 1178295, 1178282, 1178293, 1178294, 1178284, 1178286, 1178605.