Along a plunging cold frontal boundary, a nocturnal complex of thunderstorms tracked to the east-southeast from Illinois into far southwestern central Indiana. Copious vertical wind shear and instability, including strong mid-level temperature lapse rates, fueled embedded cells with scattered severe 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.
Along a plunging cold frontal boundary, a nocturnal complex of thunderstorms tracked to the east-southeast from Illinois into far southwestern central Indiana. Copious vertical wind shear and instability, including strong mid-level temperature lapse rates, fueled embedded cells with scattered severe 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 17, 5:43 AM EST, 1 hour 53 minutes earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 643 AM EDT Fri Jun 17 2022 ...Updated Aviation Discussion... .Mesoscale Update... Issued at 622 AM EDT Fri Jun 17 2022 Latest satellite and radar imagery show an MCS along the MO/IL capable of producing damaging winds in excess of 60 mph and large hail. Surface analysis reveals a slow moving cold front extending west to east just north of the I-70 corridor with a sharp theta-e axis and dew point gradient along it. The MCS is expected to ride along and just south of the boundary along the axis of greatest instability where ML CAPE values of 3000-4000 j/kg exist. Observations from around St. Louis indicate storms at the leading edge of the MCS may be elevated with cloud bases around 8-9 kft; however with low and mid level lapse rates 7-7.5 C/Km, dry air in the mid levels, and DCAPE upwards of 800-1000 j/kg (from RAP data), wind energy has been able to make it to the surface. These storms continue to pose a damaging wind and hail threat as they trek eastward into Illinois where ACARS soundings and observations show an environment conducive for MCS maintenance. Increasing lift ahead of the mid level impulse responsible for the MCS has also sparked scattered showers and sub-severe thunderstorms along and south of the front in Illinois and Indiana this morning; therefore increased PoPs above guidance for western and SW Indiana this morning. Will have to watch these cells as a few of them have been growing upscale and became quite strong pretty fast. Expect the MCS to continue east southeastward through the morning, making it to the IL/IN border by 10 am. Scattered convection ahead of the main MCS will continue to develop and move into South Central Indiana over the next couple hours... mainly along and south of the I-70 corridor. Still some uncertainty exists regarding the strength of the MCS as it nears Indiana. Typically these systems weaken after sunrise as the low level jet helping fuel it shuts of; however in such a moist, unstable environment, this system may become cold pool driven and be able to sustain itself a few more hours. Am not ruling out an isolated severe wind gust or hail threat across far western Indiana if this complex holds together. Still expect the entire system to weaken as it crosses Southern Indiana through the morning. Expect temperatures to remain steady in the low 70s in areas of rain and increased cloud cover through the morning. Sharp rises in temperatures likely during the early afternoon as clouds clear and precipitation moves out of the area. With rain chances this morning, do not think the atmosphere will dry out as much as what models predict, therefore expect another humid day across Central and Southern Indiana. && .Short Term...(Today through Saturday) Issued at 227 AM EDT Fri Jun 17 2022 ...Morning thunderstorms along and south of the I-74 corridor... ...Seasonal temperatures return for the weekend... Brief reprieve from the excessive heat expected this weekend before another round of well above normal temperatures returns early next week...but first a chance of thunderstorms across South Central Indiana Friday morning. Aloft, a digging upper low over SE Canada and a building ridge over the northern Plains place Indiana in a northwest flow pattern. Surface analysis shows a weak cold front extending from near Omaha to South Bend to Cleveland northeastward to Montreal with 60-70+ dew points south of it and a much drier environment to the north. This front will continue to push south over the next 24 hours as troughing over Canada continues to dig, suppressing high pressure to the south. Potential for thunderstorms exists across the southern half of the forecast area early this morning as a convection complex across Missouri and Iowa ride along a front draped across the region. Water vapor imagery early this morning shows a weak mid level impulse embedded within the northwest flow pattern sparking off thunderstorms along the surface boundary. Latest CAMs guidance picks up on this developing MCS and brings it to the SW IN border late this morning. 06z ACARS soundings from both St. Louis and Indianapolis depict an environment conducive for MCS maintenance through the night with MUCAPE around 3500 j/kg, 0-3 km shear 25-30 kts, steep lapse rates through the column, and a very moist PBL with dew points in the lower 70s. Expect the MCS to ride east southeast along the surface boundary/sharp instability gradient through the morning. RAP MCS maintenance parameter highlights the I-70 corridor from KCMO to SLT to IND for an area conducive for MCS development and maintenance through the early morning further increasing confidence in storms surviving the trek across the Midwest. Expect these storms to become slightly elevated as a weak overnight inversion sets up just above the PBL; however would not be surprised to see a few storms produce strong wind gusts that reach the surface with steep lower and mid level lapse rates and plenty of dry air aloft. Small hail, heavy rain, and lightning are also potential threats with this approaching MCS. Best chance for thunderstorms this morning is across the southern 1/3 of the forecast area, south of a line from Terre Haute to Bloomington to Columbus. Expect the MCS to be in its weakening phase as it moves west to east southeast across Indiana; therefore currently expect the best chance of anything strong to severe along the IL/IN border. CAMS brings the MCS toward the IL/IN border around 10 am and has it through the area by 2 pm. Another forecast challenge presented by this potential complex of storms is the temperature and sky forecast for the rest of the day. Will have to watch how much cloud cover spreads over Central Indiana from the morning storms. Lingering clouds through the morning, even in areas north of the main thunderstorm complex, should keep temperatures from following a typical diurnal curve. Expect temperatures to remain steady in the lower 70s for areas that receive rain and remain cloudy through the morning. As clouds clear rapidly during the afternoon, temperatures will likely spike into the 80s. Northern portions of the CWA stand the best chance of having little influence from storms across the south; therefore temperatures may rise faster across North Central Indiana, creating a sharp north/south gradient across Indiana. Cold front moving through the region will have more of an effect on humidity levels rather than temperatures today. While highs today remains in the upper 80s to near 90, expect humidity levels to fall through the afternoon with dew points falling into the 50s - low 60s by this evening. Morning storms across the south may slow the drying trend there; therefore keeping higher humidity levels through the day for areas that see thunderstorms. ...Saturday... As troughing continues to dig across the Northeast CONUS, the area of high pressure across the Southeast is shunted back to the south while another area of high pressure centered over Ontario drops southward. Northerly flow on the backside of the trough and eastern edge of the Canadian high will continue to advect much cooler and drier air into the Great Lakes and Ohio Valley this weekend making it feel more like September rather than June! Much cooler air aloft (11-12C at 850 mb compared to 20-26C a few days ago) should lead to highs in the upper 70s to low 80s. Dew points continue to fall as dry air advects in and mixes down to the surface, bottoming out in the mid 40s for Northern Indiana and mid 50s for Southern Indiana. Subsidence under the high will keep skies clear and the chance for precipitation far away from Indiana this weekend. && .Long Term...(Saturday night through Thursday) Issued at 227 AM EDT Fri Jun 17 2022 Surface high pressure will move into the area Saturday night into Sunday, and then slide east of the area through early next week. Aloft, the upper ridge will build back in as well. Any convection riding around the ridge through Sunday night will encounter dry air and shouldn't make it nearby, and afterwards the ridge will close enough to keep any convection east of central Indiana. The results of the above will be dry and increasingly hot and humid conditions developing. Sunday will remain more comfortable with highs in the 80s, but by Monday highs will return to around 90. By Tuesday highs could potentially reach the mid and upper 90s with heat indices around 100. For mid-week next week, an upper trough moving through southern Canada and the northern USA will push the upper ridge south of the area, allowing a cold front to move in. This will bring chances for rain, but with best forcing remaining with the upper trough to the north, coverage isn't expected to be high. Uncertainties on how strong the upper trough will be and where the cold front will end up leads to low PoPs continuing into Thursday. Highs in the 90s will likely continue through Thursday with bulk of the cooler air remaining north. How high in the 90s they get will depend on how far south the front makes it as well as cloud/rain coverage. && .Aviation...(12Z TAF Issuance) Issued at 642 AM EDT Fri Jun 17 2022 IMPACTS: * AM showers and thunderstorms for Southwest and South Central IN * VFR conditions expected this afternoon and through the rest of the period DISCUSSION: Morning thunderstorms expected across SW and South Central Indiana as an MCS near the MO/IL border continues to track eastward. Current forecast is for this complex of thunderstorms to hold together as it moves into Indiana around and after 8 am. With such a warm, moist, and unstable environment, the potential is there for a few storms to become severe with winds in excess of 60 mph and large hail. Main threat for storms is along and south of a line from KHUF to KBMG to Columbus. Current ceilings under this complex are around 5,000 ft however MVFR conditions are certainly possible as showers and storms move through. Even in storms that are sub-severe, still expect brief periods of reduced visibility, heavy rain, lightning, and erratic wind speeds and directions. This complex of showers and storms should move out of the area by around noon. Expect rapid clearing this afternoon as a cold front pushes southward through the area. VFR conditions likely this afternoon through tomorrow. && .IND WATCHES/WARNINGS/ADVISORIES... None. && Mesoscale...CM Short Term...CM Long Term...50 Aviation...CM
Hazardous Weather Outlook National Weather Service Indianapolis IN 348 AM EDT Fri Jun 17 2022 INZ021-028>031-035>049-054>057-065-180800- Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone- Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam- Hendricks-Marion-Hancock-Henry-Morgan-Johnson-Shelby-Rush-Decatur- 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, Union City, Farmland, Parker City, Clinton, Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, New Castle, Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, Rushville, and Greensburg 348 AM EDT Fri Jun 17 2022 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. No Hazardous Weather is expected at this Time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Thunderstorms are possible mid next week. It is too soon to determine if any storms will be severe. Dangerously hot weather may return 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 INZ051>053-060>064-067>072-180800- Vigo-Clay-Owen-Sullivan-Greene-Monroe-Brown-Bartholomew-Knox-Daviess- Martin-Lawrence-Jackson-Jennings- Including the cities of Terre Haute, Brazil, Spencer, Gosport, Sullivan, Carlisle, Shelburn, Farmersburg, Linton, Bloomfield, Jasonville, Worthington, Bloomington, Nashville, Columbus, Vincennes, Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, and North Vernon 348 AM EDT Fri Jun 17 2022 This hazardous weather outlook is for central Indiana. .DAY ONE...Today and Tonight. Thunderstorms are possible for Southwest and South Central Indiana Friday morning. Severe storms are not expected; however a few storms may be strong with gusty winds, small hail, heavy rain, and lightning. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Thunderstorms are possible mid next week. It is too soon to determine if any storms will be severe. Dangerously hot weather may return next week. .SPOTTER INFORMATION STATEMENT... Spotters may be needed Friday morning. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
The Evansville,IN radar (KVWX), 34 km away, was scanning. The volume nearest the first event began at 12:34 UTC.
8 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed trees as observed by Johnson Township Fire Department member in Decker, who estimated a 60 mph gust.
Thunderstorm winds downed a large and healthy tree onto Indiana Route 550 at Camp Arthur Road.
Thunderstorm winds snapped or uprooted multiple trees in residential section.
Thunderstorm winds downed large power lines.
Thunderstorm winds downed trees on both South County Road 800 West and County Road 625 South immediately west of 800 West.
Thunderstorm winds downed several trees along Greenwood Lake.
Thunderstorm winds downed trees in southeastern Daviess County. Relayed by social media.
Thunderstorm winds downed two trees into Weisbach Community Church; before downing more trees 0.7 miles farther to the east-northeast at Old Paths Tract Society.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2022Every state in 2022This day in weather historyWarnings in Indiana, June 2022
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: 1021159, 1021160, 1021169, 1021467, 1021164, 1021170, 1021161, 1021433.