A band of scattered showers and thunderstorms developed over the northern reaches of central Indiana during the afternoon of June 7th. As these storms pushed eastward and southeastward, a few isolated severe and sub-severe reports were received during the evening hours.
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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.
A band of scattered showers and thunderstorms developed over the northern reaches of central Indiana during the afternoon of June 7th. As these storms pushed eastward and southeastward, a few isolated severe and sub-severe reports were received during the evening hours.
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 7, 6:02 PM EST, 1 minute earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 702 PM EDT Thu Jun 7 2018 .UPDATE... The AVIATION Section has been updated below. && .SYNOPSIS... Issued at 302 PM EDT Thu Jun 7 2018 A meandering front along with upper disturbances will interact with warm and humid air to produce chances for thunderstorms daily through mid-week next week. Temperatures will remain above normal through the period. && .NEAR TERM.../Rest of This Afternoon and Tonight/ Issued at 302 PM EDT Thu Jun 7 2018 Early this afternoon, a surface front extended from north central Illinois into northern Indiana. A wave was along the front east of Quincy Illinois. Satellite shows increasing cumulus development near the wave. As the wave moves east later this afternoon into this evening, scattered thunderstorms will develop along with it in an unstable atmosphere. Will have chance PoPs using scattered wording across much of the area this afternoon and evening, with slight chance PoPs far south, furthest from the forcing. With precipitable water values nearly at 1.5 inches, locally heavy rain is a threat. A strong storm can't be ruled out either, but organized severe weather is not expected. Convection will decrease overnight as the wave moves east and instability wanes, so went slight chance PoPs then and confined them to the northeast half of the area or so, closer to the front. The model blend looks reasonable for low temperatures given expected conditions. && .SHORT TERM.../Friday through Sunday/ Issued at 302 PM EDT Thu Jun 7 2018 Models are close enough that the model blend initialization was accepted for most items. The surface front will continue to meander across the area during the short term, and various upper impulses will move through the area. These will set off areas of thunderstorms at times throughout the short term. While thunderstorms are expected, the timing and location of the thunderstorms remains in question. The timing of the upper impulses always has some uncertainty to it. Also, where the thunderstorms and possible thunderstorm complexes end up will depend a lot on mesoscale interactions, which the models have a hard time dealing with at their scales. Some models (e.g NAM) also are having convective feedback issues. Thus am having a hard time buying into the widespread rain as shown by the model QPF fields. CAMs are showing less coverage in convection (at least through 60 hours). Given the uncertainties and the lower coverage of the CAMs, will not go any higher than the chance category for PoPs throughout the short term. Precipitable water values will climb to the 1.50 to 2 inch range, which means that locally heavy rain is a threat with any storm that develops. Can't rule out a few strong / isolated severe storms with the Storm Prediction Center placing the area in a Marginal Risk Friday and Saturday. Assuming storms do not produce cloud shields across the area, high temperatures will be around 90 degrees Friday and in the mid and upper 80s for the weekend. && .LONG TERM /Monday Through Thursday/... Issued at 226 PM EDT Thu Jun 7 2018 Unseasonably warm weather will continue into the early portions of next week. The pattern of ridge-riding thunderstorm complexes will continue into the early portions of next week with chances for thunderstorms through Wednesday. Confidence is low on specific timing and location of thunderstorm development due to the mesoscale nature of these thunderstorm complexes. The pattern will begin to change going into midweek as the ridge begins to flatten out and flow becomes more westerly. High pressure will settle across central Indiana on Thursday bringing the first day with low chances for rain for the area. Overall chances for widespread rain are low on any given day, but most of the area should see a good soaking rain somewhere between Monday and Wednesday. Highs will generally be in the mid to upper 80s with lows in the mid to upper 60s. && .AVIATION /Discussion for the 08000Z Tafs/... Issued at 702 PM EDT Thu Jun 7 2018 Mainly VFR Conditions will continue this TAF period. Boundary just north of OKK and LAF will be the primary focus for showers and thunderstorms this TAf period. Diurnal Heating and lower level convergence has led to shower and storm development...mainly north of the TAF sites. This showers and storm development should progress through the evening hours...drifting to the east-southeast. At this time LAF looks like best TAF site to be impacted with perhaps brief MVFR to IFR as these storms pass between 23-01Z. As heating wanes late this evening...storms show dissipate leading to VFR Conditions overnight. Forecast soundings on Friday once again show steep lapse rates with attainable convective temperatures along with plenty of CAPE with a warm and humid air mas in place. Thus will expected more diurnal showers and storm development on Friday afternoon. Too soon to include a mention with precise timing...but confidence is high for TSRA development after 18Z Friday. Again...any storms thatdoes strike a TAF site will produce brief MVFR to IFR Conditions. && .IND WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...50 NEAR TERM...50 SHORT TERM...50 LONG TERM....White AVIATION...JP
Hazardous Weather Outlook National Weather Service Indianapolis IN 445 PM EDT Thu Jun 7 2018 INZ021-028>031-035>049-051>057-060>065-067>072-082045- 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- Including the cities of Lafayette, Frankfort, Kokomo, Crawfordsville, Anderson, Muncie, Indianapolis, Terre Haute, Shelbyville, Bloomington, Columbus, Vincennes, Bedford, and Seymour 445 PM EDT Thu Jun 7 2018 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Outlook: Showers and thunderstorms possible across most of central Indiana. Hazards: Gusty winds, small hail, lightning, and brief heavy rainfall. Timing: Through tonight, but highest chances are before midnight Discussion: Scattered showers and thunderstorms are possible as a front remains in the vicinity. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Outlook: Scattered thunderstorms are possible at times across central Indiana from Friday through Wednesday. A few strong storms are possible Friday and Saturday. Gusty winds, hail, heavy rainfall, and lightning are all possible. Discussion: A meandering front will keep chances for showers and thunderstorms around into next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
Special Weather Statement
National Weather Service Indianapolis IN
528 PM EDT THU JUN 7 2018
INZ021-072145-
Carroll IN-
528 PM EDT THU JUN 7 2018
...STRONG THUNDERSTORM MOVING THROUGH...
At 527 PM EDT, Doppler radar was tracking a strong thunderstorm over
Delphi, or 9 miles south of Monticello, moving east at 10 mph.
Half inch hail will be possible with this storm.
Locations impacted include...
Delphi, Flora, Camden and Yeoman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4062 8652 4049 8655 4053 8669 4056 8670
4056 8677 4066 8677 4066 8676 4067 8674
4068 8674 4068 8676 4069 8675 4070 8676
4071 8676
TIME...MOT...LOC 2127Z 286DEG 8KT 4061 8672
50Special Weather Statement National Weather Service Indianapolis IN 620 PM EDT THU JUN 7 2018 INZ041-072245- Delaware IN- 620 PM EDT THU JUN 7 2018 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DELAWARE COUNTY UNTIL 645 PM EDT... At 619 PM EDT, Doppler radar was tracking a strong thunderstorm near Muncie, moving east at 10 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. Locations impacted include... Muncie, Selma and Prairie Creek Reservoir. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4008 8543 4017 8545 4020 8522 4008 8521 TIME...MOT...LOC 2219Z 269DEG 9KT 4013 8537 50
Special Weather Statement National Weather Service Indianapolis IN 643 PM EDT THU JUN 7 2018 INZ029-072315- Tippecanoe IN- 643 PM EDT THU JUN 7 2018 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN TIPPECANOE COUNTY UNTIL 715 PM EDT... At 643 PM EDT, Doppler radar was tracking a strong thunderstorm near Otterbein, moving southeast at 10 mph. Half inch hail and winds in excess of 40 mph will be possible with this storm. This storm will remain over mainly rural areas of northwestern Tippecanoe County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4056 8696 4050 8691 4040 8709 4056 8709 TIME...MOT...LOC 2243Z 310DEG 7KT 4055 8710 50
Special Weather Statement National Weather Service Indianapolis IN 659 PM EDT THU JUN 7 2018 INZ031-072315- Howard IN- 659 PM EDT THU JUN 7 2018 ...THUNDERSTORM WITH HAIL MOVING THROUGH... At 658 PM EDT, Doppler radar was tracking a strong thunderstorm near Kokomo, moving east at 10 mph. Half inch hail will be possible with this storm. Locations impacted include... Kokomo and Greentown. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4046 8595 4046 8619 4056 8619 4056 8595 TIME...MOT...LOC 2258Z 268DEG 8KT 4052 8613 50
The Indianapolis radar (KIND), 107 km away, was scanning. The volume nearest the first event began at 23:01 UTC.
2 thunderstorm wind, 1 hail. Local standard time, as filed.
A couple smaller trees were downed and a small outbuilding was destroyed on County Road 350 North due to damaging thunderstorm wind gusts.
The Randolph County EMA reported a tin roof being blown off an American Legion storage shed that was completely open on one side due to strong thunderstorm wind gusts. A trampoline was also picked up and tossed.
This report was received via Twitter.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2018Every state in 2018This day in weather historyWarnings in Indiana, June 2018
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: 762796, 767224, 762797.