In the evening, a slowly approaching squall line prompted a Severe Thunderstorm Watch for most of northwestern central Indiana. Despite weakening and breaking up slightly, upon encountering the warm and very humid conditions, one storm pulsed up, producing brief damaging winds.
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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.
In the evening, a slowly approaching squall line prompted a Severe Thunderstorm Watch for most of northwestern central Indiana. Despite weakening and breaking up slightly, upon encountering the warm and very humid conditions, one storm pulsed up, producing brief damaging winds.
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 26, 6:14 PM EST, 1 hour 56 minutes earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 714 PM EDT Sat Jun 26 2021 ...Updated Aviation Discussion... .Short Term...(This evening through Sunday night) Issued at 308 PM EDT Sat Jun 26 2021 Mostly quiet across the forecast area this afternoon, with most convection confined to a narrow prefrontal corridor of deep moist convergence from southwestern Michigan back into south central Missouri. There has been little eastward progress thus far, although models suggest this axis of convergence will begin to slowly shift eastward late this afternoon and this evening as the front makes very slow progress as well. Will carry thunder chances across the northwest through much of the night with the highest chances in the evening prior to boundary layer stabilization. Forecast soundings indicate modest instability with some fairly good low level shear for a time this evening, so there will be some chance for strong to severe storms for a window around 23-03Z or so, with isolated damaging winds and perhaps a tornado. Marginal risk is well placed. Thunderstorm chances will overspread the entire area tomorrow, again highest in the northwest, as the front gets a bit closer, but also washes out a bit, and somewhat more impressive and widespread instability is expected to develop, although shear will be a bit more modest. Marginal risk across much of the area again is well placed. Expect more scattered activity tomorrow than experienced so far today. Storm chances will stick around into Sunday night but wane a bit again as the boundary layer stabilizes. Details become a bit more uncertain with time as remnant boundaries are left behind and also owing to nebulous upper level support. Blend appears to have a good handle on temperatures and see little reason to deviate with little change in airmass through the short term. && .Long Term...(Monday through Saturday) Issued at 308 PM EDT Sat Jun 26 2021 Southwest upper flow will become more zonal by mid week next week as an upper trough moves into the Great Lakes. This will allow a surface front to gradually move through the area by the end of next work week. Best forcing will remain closer to the surface front and upper trough axis, which means mainly north early in the period. As the trough and surface front move into the area during the week, forcing will be more widespread. High precipitable water values will continue through much of next week, with values between 1.50 and 2" common. Thus, locally heavy rain will remain a threat. With the plentiful moisture and available forcing, higher PoPs will be common north and west early in the period, spreading through the remainder of the area mid week. PoPs will diminish late week as the front moves east. There remains a good amount of uncertainty though on the end of the period, as the 00Z ECMWF and 12Z Canadian have an upper low to the west of the area, while the 12Z GFS is east of the area. Will keep some PoPs for next Saturday with low confidence. Warm temperatures will continue into mid week, then cooler air will move in with rain and the surface front. && .Aviation...(00Z TAF Issuance) Issued at 713 PM EDT Sat Jun 26 2021 IMPACTS: * Thunderstorms moving into KLAF over next couple of hours, might clip KHUF later. * Winds from 180 to 200 gusting to around 22 to 30 kts with gusts decreasing after sunset, picking back up Sunday late morning. DISCUSSION: A line of storms stretching from northern Indiana through central Illinois and moving northeast could reach KLAF over the next couple of hours. Some uncertainty if the southern edge will stay south enough to clip KHUF, but nothing expected at KIND and KBMG. MVFR to IFR conditions possible in the thunderstorms. Storms should then lift north later overnight. MVFR ceilings could move in from the northwest near daybreak, but may only get as far south at KLAF. Chances for more thunderstorms will return by Sunday afternoon. Winds are generally from 180-210 and will remain so throughout the period, sustained at 10-15KT with gusts this evening as high as 25- 30KT, and again into the lower 20KT range tomorrow. && .IND WATCHES/WARNINGS/ADVISORIES... None. && Short Term...Nield Long Term...50 Aviation...CP
Hazardous Weather Outlook National Weather Service Indianapolis IN 328 PM EDT Sat Jun 26 2021 INZ021-028>031-035>040-043>046-051>053-060-061-067-271930- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Vermillion-Parke-Putnam-Hendricks-Vigo-Clay- Owen-Sullivan-Greene-Knox- Including the cities of Delphi, Flora, Williamsport, West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington, Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, Clinton, Newport, Rockville, Greencastle, Plainfield, Brownsburg, Danville, Terre Haute, Brazil, Clay City, Spencer, Sullivan, Linton, Bloomfield, and Vincennes 328 PM EDT Sat Jun 26 2021 This hazardous weather outlook is for central Indiana. .DAY ONE...This Afternoon and Tonight. Thunderstorms will be possible this evening and overnight with a threat for isolated severe storms through midnight. Damaging winds and heavy rainfall will be the primary threats, with an isolated tornado possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Periodic chances for showers and thunderstorms will continue through the week. Storms will produce heavy rainfall and may be strong at times with gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind INZ041-042-047>049-054>057-062>065-068>072-271930- Delaware-Randolph-Marion-Hancock-Henry-Morgan-Johnson-Shelby-Rush- Monroe-Brown-Bartholomew-Decatur-Daviess-Martin-Lawrence-Jackson- Jennings- Including the cities of Muncie, Winchester, Indianapolis, Greenfield, New Castle, Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, Rushville, Bloomington, Nashville, Columbus, Greensburg, Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, Brownstown, and North Vernon 328 PM EDT Sat Jun 26 2021 This hazardous weather outlook is for central Indiana. .DAY ONE...This Afternoon and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Periodic chances for showers and thunderstorms will continue through the week. Storms will produce heavy rainfall and may be strong at times with gusty winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. && 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
746 PM EDT Sat Jun 26 2021
INZ028-270015-
Warren-
746 PM EDT Sat Jun 26 2021
...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT WARREN COUNTY...
At 744 PM EDT, strong thunderstorms were clustered near Rossville, or
16 miles north of Danville, moving northeast at 45 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
Williamsport, West Lebanon, Pine Village, Rainsville, Tab and Pence.
LAT...LON 4048 8752 4047 8709 4037 8709 4035 8711
4031 8724 4030 8725 4022 8753
TIME...MOT...LOC 2344Z 241DEG 46KT 4038 8757
AU/CPThe Indianapolis radar (KIND), 98 km away, was scanning. The volume nearest the first event began at 01:10 UTC.
2 thunderstorm wind. Local standard time, as filed.
Tree downed near intersection of North River Road and US Highway 52. Time estimated from radar.
Tree downed along County Road 800 South west of US Highway 52. Time estimated from radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2021Every state in 2021This day in weather historyWarnings in Indiana, June 2021
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: 957908, 957907.