A line of subsevere thunderstorms moved through east central Indiana during the early afternoon hours of June 21st. Ahead of this line, a lone thunderstorm formed in northwestern Rush county and briefly produced damaging wind gusts before being absorbed by the main line.
Every event with a place to put it. Tap one for its entry below.
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 line of subsevere thunderstorms moved through east central Indiana during the early afternoon hours of June 21st. Ahead of this line, a lone thunderstorm formed in northwestern Rush county and briefly produced damaging wind gusts before being absorbed by the main line.
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 21, 1:49 PM EST, 8 minutes earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 249 PM EDT Sun Jun 21 2020 .UPDATE... The LONG TERM Section has been updated below. && .SYNOPSIS... Issued at 208 PM EDT Sun Jun 21 2020 A pair of upper level weather disturbances are expected to push across Indiana over the next few days...providing daily chances through Tuesday. Rain amounts with these systems will be light. High pressure is expected to arrive across the area by Wednesday...providing dry weather for mid week. Chances for showers and storms will return next weekend. && .NEAR TERM /Tonight/... Issued at 208 PM EDT Sun Jun 21 2020 Water vapor imagery across the area shows a short wave trough in place IL and KY...pivoting into Indiana. Radar shows showers and storms over central Indiana...ahead of this system progressing across the state. Associated cloud cover has also prevented much heating and instability. Models suggest the short wave responsible for the rain will quickly exit to the east late this afternoon and early this evening...bringing ongoing rain to a quick end. Forecast soundings overnight indicate a drying trend and HRRR shows dry weather overnight. Mid levels show dry air arriving amid subsidence. Thus will trend for some pops through 00Z late tonight...otherwise a dry forecast will be expected Overnight. Given the little change in the overall air mass and decreasing clouds expected through the night...will not veer far from the NBM on temps. && .SHORT TERM /Monday through Wednesday/... Issued at 208 PM EDT Sun Jun 21 2020 The models continue to indicate broad cyclonic flow in place aloft through Wednesday. Yet another shorty wave within the flow is expected to push across Indiana on Monday afternoon and Monday Night. Forecast soundings at that time show pwats over 1.83 inches with attainable convective temperatures but limited CAPE. Thus enough forcing and moisture is expected for some pops and isolated tsra. Will mainly focus precipitation chances during the afternoon and evening as the short wave passes. Given the expected sunshine and heating early on in the day...will trend highs at or above the NBM. The Short wave quickly exits the area on Monday night...and forecast soundings show subsidence and drying within the column through Tuesday. Cyclonic flow aloft remains and forecast soundings show limited instability. Thus will try to trend toward a dry forecast on Tuesday as confidence in diurnally driven storms is low given the dry air aloft. Will stick close the NBM temps here. The flow aloft remains cyclonic through Wednesday as Ridging builds across the Plains states. This continues to place Indiana within an area favorable for subsidence. Meanwhile at the surface high pressure is expected to build across the Ohio valley from the Central plains. Thus will trend toward a dry forecast on Wednesday and Thursday with temps near the NBM. && .LONG TERM /Wednesday Night through Sunday/... Issued at 218 PM EDT Sun Jun 21 2020 Surface high pressure will continue building into the area Wednesday night to Thursday, allowing for dry conditions in that time frame. There is a small chance for light rain at times Thursday. Models are in pretty good agreement for the start of the long term, but varies more into next weekend and thus lowering the confidence in the forecast, particularly with timing of any weather. Did go with guidance as it looked good given the model variations in the long term. Generally though, models hint at a system approaching the area while a high sits to the SE, off the Atlantic coast. This will likely allow Gulf air into the Ohio Valley and thus rain chances for the weekend. Best PoPs at the moment look to be Friday night through Saturday. Temperatures will start out slightly below normal, but will trend to above normal by the weekend. && .AVIATION /Discussion for the 21/18Z TAF Issuance/... Issued at 143 PM EDT Sun Jun 21 2020 Conditions are expected to remain VFR through most of the TAF period. Some sites could see MVFR ceilings overnight or briefly within rain showers. Rain is expected to end for the western Indiana sites by midnight while low chances remain overnight for the central sites - but chances overnight are not high enough to include in the TAFs. Rain is expected to pick back up again tomorrow, but the best chances will be later in the day, just beyond the TAF timeframe and will be included in future TAFs. Winds will be light and variable through much of the period. && .IND WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...Puma NEAR TERM...Puma SHORT TERM...Puma LONG TERM....KH AVIATION...KH
Hazardous Weather Outlook National Weather Service Indianapolis IN 522 AM EDT Sun Jun 21 2020 INZ021-028>031-035>049-051>057-060>065-067>072-220930- 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 Delphi, Flora, Williamsport, West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington, Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, Cumberland, New Castle, Terre Haute, Brazil, Clay City, Spencer, Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, Brownstown, and North Vernon 522 AM EDT Sun Jun 21 2020 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. Outlook: Scattered thunderstorms. Hazards: Lightning, damaging winds, and brief heavy rainfall. Timing: Mainly through early evening. Discussion: A cold front will stall over the eastern Great Lakes. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Outlook: Thunderstorms are possible at times over all of parts of central Indiana through next Wednesday and again starting late next week. The best chances will be Monday afternoon through Tuesday. Any storm is capable of producing cloud to ground lightning, brief heavy rainfall and gusty winds. Discussion: A slow moving cold front will drop southeast across central Indiana on Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. .STORM MOTION STATEMENT... The expected storm motion today is from the southwest at 25 MPH, then becoming northwesterly late this afternoon. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
The Indianapolis radar (KIND), 65 km away, was scanning. The volume nearest the first event began at 18:53 UTC.
1 thunderstorm wind. Local standard time, as filed.
Power lines and trees downed to thunderstorm wind damage. Location is approximate.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2020Every state in 2020This day in weather historyWarnings in Indiana, June 2020
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: 888489.