The 21st late day brought a quickly-evolving set-up featuring an increasingly moist column supported by an approaching Middle Mississippi Valley upper short wave trough, strengthening flow amid a warm frontal zone draped over the local central Indiana region providing 35-50KT of effective wind shear, and advection of higher low-level dewpoints with daytime heating which provided sufficient…
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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.
The 21st late day brought a quickly-evolving set-up featuring an increasingly moist column supported by an approaching Middle Mississippi Valley upper short wave trough, strengthening flow amid a warm frontal zone draped over the local central Indiana region providing 35-50KT of effective wind shear, and advection of higher low-level dewpoints with daytime heating which provided sufficient destabilization. Severe rotating supercells tracked across Illinois into southern central Indiana as they aligned into a Mesoscale Convective Vortex (MCV).
Wind damage occurred within nine central Indiana zones and as far east as Brown County, five (mainly EF-0) tornadoes were focused in Owen County and points south and west, while the region's farthest southwestern counties experienced scattered flash flooding following downpours from multiple supercells. A final EF-0 torando and flash flooding also occurred in Bartholomew County. This Bartholomew County EF-0 was Indiana's 63rd tornado in 2026...a new yearly state tornado record (73 events) was set later in the evening, with 74 tallied by the end of June 21st.
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, 4:35 PM EST, 40 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Indianapolis IN 535 PM EDT Sun Jun 21 2026 .KEY MESSAGES... - Heavy rain and severe storms are possible this afternoon into early Monday - Flooding threat for both river/non-river will increase through the early week from heavy rainfall on damp/saturated soils - Temperatures will trend from slightly below normal to near normal through Saturday...trend to very warm/humid late in period && .MESOSCALE UPDATE... Issued at 534 PM EDT Sun Jun 21 2026 An MCV currently located across central IL is pushing eastward towards the region. Dewpoints continue to rise ahead of the approaching disturbance amid increasing moisture advection. Latest surface observations depict dewpoints well in the 60s to near 70F. Dewpoints along or near the I-70 corridor are now in the low to mid 60s. This along with daytime heating has allowed for sufficient destabilization over the past few hours. Meanwhile, strengthening deep-layer flow is promoting effective shear around 35-50kt supporting supercell potential. Multiple tornadoes have already been reported across central Illinois recently with the modestly buoyant and highly sheared environment likely to push into southwest portions of central IN over the next hour and eventually further northeast. Latest IND VAD wind profiles already support this with an enlarging hodograph and significant low-level veering. Any discrete cells that form ahead of the developing linear storm mode across central Illinois will pose the greatest tornado threat, but line embedded tornadoes are also possible given ample low-level wind shear. Isolated large hail cannot be ruled out with any discrete cells. However, modest instability and potential for upscale growth in a moisture rich environment limits this threat. Radar imagery has shown one long-lived discrete supercell out ahead of the developing linear segments in central Illinois. If this supercell can continue to remain deviant it will likely impact far western portions of of the forecast area including Sullivan and Vigo counties within 20-25 minutes. The environment upstream of this storm remains favorable for supercell maintenance and tornado potential. && .DISCUSSION (This evening through Sunday)... Issued at 302 PM EDT Sun Jun 21 2026 This afternoon through Monday... Quiet weather conditions continue across central Indiana at this time ahead of an approaching MCS with an associated MCV. Look for this system to continue pushing eastward supporting widespread showers and thunderstorms towards this evening. Increasing clouds has limited destabilization to some degree, but moisture advection and daytime heating is allowing for gradual destabilization this afternoon. Deep-layer and low-level shear will also increase over the next several hours with the approaching disturbance promoting stronger flow. Favorable effective shear values around 30-50 kt combined with modest instability supports the potential for organized storms with all hazards possible. Latest model guidance still depicts enlarging low-level hodographs across portions of central IN favoring an isolated tornado threat. The greatest tornado threat is across southwest portions of central Indiana where the greatest instability and low-level wind shear overlap. Some uncertainty remains on storm mode at least initially. There does appear to be at least a brief opportunity for discrete cells later this afternoon into the early evening before multiple linear segments then develop leading to a greater damaging wind gust threat with embedded tornadoes possible. Isolated large hail cannot be ruled out, but modest instability and linear storm mode by the evening hours should mostly limit this threat. A Flood Watch is in effect through 8 AM Monday morning for much of central IN with the potential for 1 to 3 inches of rainfall from multiple rounds of storms. Locally higher amounts cannot be ruled out. Expect precipitation chances to diminish late tonight into Monday morning as the aforementioned disturbance shifts east. Surface high pressure will then build in providing quiet weather for much of the day Monday. Isolated showers are possible across east- central IN through the first half of the day. Lingering clouds and northerly surface flow will keep temperatures cooler. Look for highs in the 70s. Monday night through Sunday... Generally active pattern will continue this week amid overall zonal pattern. Established trough over northern North America that has been guiding mid-latitude pattern...will shift from south-central Canada to more pronounced, perhaps cut-off upper lows over SW Canada to the northern Rockies late this week. This transition will allow a subtropical ridge to build over the central US, bringing seasonably warm and humid conditions into Indiana next weekend. The next round of broad and seasonably weak Canadian surface high pressure will pass through Indiana Monday night to Tuesday night, dropping dewpoints to the mainly low to mid-50s at night, and light northerly breezes under H850 temperatures as low as 10 degrees Celsius during the day Tuesday. Transition back to more summery weather Wednesday with light southwest flow returning moderate humidity ahead of next wave...which should bring periods of scattered RWs/few TRWs through the Wednesday night-Thursday night period as the disturbance's boundary slowly crosses the region. Expect a shorter period of improvement around the Friday timeframe as western trough deepens near Vancouver...only allowing next northern surface ridge to graze the CWA, with isolated diurnal convective chances continuing...and increasing through Saturday as light southerly flow boosts humidity through moderate to high levels. Temperatures through the workweek to see subtle increase in afternoon maximums from around 80F to low 80s, although mid-80s should be more common along the US-50 corridor...while morning lows steadily climb from 50s to 65-70F by week's end. && .AVIATION (18Z TAF Issuance)... Issued at 140 PM EDT Sun Jun 21 2026 Impacts: - Scattered to numerous TSRA around 21Z-06Z...sct convection after - Outside of convection...CIGs to deteriorate from west to east, to MVFR 23Z-02Z...and to IFR, NW to SE, during 03Z-08Z - Winds veering to southerly by 04Z south of KLAF...and NNW by 18Z Monday Discussion: VFR conditions will continue near central Indiana terminals through 22Z at KLAF...and 23Z-02Z along/south of I-70. Surface low pressure, currently over northern Missouri, will slowly cross the region through the TAF period. Mid/high clouds will gradually give way to lower CIGs around 050-060 by 20Z-21Z. Associated area of convection currently over most of Illinois will reach KLAF/KHUF around 21Z...and KIND/KBMG by 23Z...continuing into the late evening. Expect further scattered -SHRA/convection through at least 12Z Monday. Winds to gust to 15-20KT at times through the period outside of convection...with flow veering with the passing surface low, from southeasterly this afternoon and early evening, to southerly by 04Z at sites south of KLAF. && .IND WATCHES/WARNINGS/ADVISORIES... Flood Watch through Monday morning for INZ028>030-035>037-039- 043>048-051>057-060>065-067>072. && MESOSCALE...Melo AVIATION...AGM DISCUSSION...AGM/Melo
Hazardous Weather Outlook National Weather Service Indianapolis IN 436 PM EDT Sun Jun 21 2026 INZ021-028>031-035>049-051>057-060>064-067>072-222045- 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-Knox-Daviess-Martin- Lawrence-Jackson-Jennings- 436 PM EDT Sun Jun 21 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Thunderstorms are expected this afternoon into tonight with some severe storms possible, mainly from through 100 AM EDT. Damaging winds and isolated tornadoes are the primary threats from the storms. Lightning is also a threat with any thunderstorm. In addition, moderate to heavy rainfall is expected this afternoon into tonight which may lead to localized flooding and increase current minor river flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Additional thunderstorms are possible Monday and again Wednesday through Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to pass along flooding and severe weather reports. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind INZ065-222045- Decatur- 436 PM EDT Sun Jun 21 2026 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Residents living southwest of McCoy Lake are encouraged to closely monitor conditions through tonight as releases from the dam are planned. Thunderstorms are expected this afternoon into tonight with some severe storms possible, mainly from through 100 AM EDT. Damaging winds and isolated tornadoes are the primary threats from the storms. Lightning is also a threat with any thunderstorm. In addition, moderate to heavy rainfall is expected this afternoon into tonight which may lead to localized flooding and increase current minor river flooding. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Additional thunderstorms are possible Monday and again Wednesday through Saturday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to pass along flooding and severe weather reports. && More information, along with other weather, hydrological and climate information can be found at http://weather.gov/ind
The Indianapolis radar (KIND), 100 km away, was scanning. The volume nearest the first event began at 22:15 UTC.
14 thunderstorm wind, 5 tornado, 5 flash flood. Local standard time, as filed.
Tree branch downed and shingles blown off by thunderstorm winds.
Several trees were snapped or uprooted by thunderstorm straight line winds in the Sullivan area, with most intense damage from winds around 90 mph on the north side of Sullivan, including a large hardwood tree on West Mill Street. Less intense winds in the center of Sullivan downed a power pole and a tree onto a house causing roof damage. Multiple trees and large branches snapped or uprooted by thunderstorm straight line wind gusts, focused on County Road 375 East, about a half mile south of concurrent EF-1 tornado. Multiple vehicles and several houses were also damaged.
An EF-1 tornado with path length of 2.74 miles and path width of 425 yards tracked east-southeastward before ending at the western edge of Hymera. Damage was mostly limited to trees and a few structures northeast of Shelburn and northwest of Hymera. Peak winds were 100 mph.
Multiple trees and large branches snapped or uprooted by thunderstorm straight line wind gusts, focused on County Road 375 East, about a half mile south of concurrent EF1 tornado. Multiple vehicles and several houses were also damaged.
An EF-0 tornado with estimated peak wind 80 mph, 0.92 mile path length, and path width of 25 yards moved through portions of Owen County. Survey damage suggests the tornado began west of North Humpty Dumpty Road south of Patricksburg, IN just before.
An EF-0 tornado with path length of 0.30 miles and a maximum path width of 80 yards occurred west of Bicknell. Damage mainly to large tree limbs and metal outbuilding roofs. Peak winds were 85 mph.
Thunderstorm rainfall up to 2.50 inches in under 1.5 hours produced flash flooding, stranding cars in northeastern Sullivan County.
Scattered trees and utility lines were downed from thunderstorm straight line winds north of Bicknell.
Powerlines downed onto road by thunderstorm straight line winds.
Scattered trees and utility lines downed by thunderstorm winds around Vincennes.
Thunderstorm rainfall up to 2.50 inches in under 2 hours produced flash flooding in parts of northern Knox County.
Several tree limbs snapped by thunderstorm winds.
Thunderstorm straight line winds produced widely scattered tree damage across west-central Martin County in an overall southeasterly direction from US Highway 231 a mile north of Bramble to US Highway 50 near Peeks Road. Most damage indicated 58 to 65 mph winds with stronger gusts uprooting a tree on Dover Hill Road west-northwest of Shoals.
Large tree limb downed by thunderstorm winds.
An EF-0 tornado with path length of 2.02 miles and a path width of 50 yards moved through portions of Martin County. Much of the damage limited to trees with one metal roof partially ripped off. Nearby, there was sporadic straight line wind damage. Peak tornado winds were 85 mph.
Large tree branches snapped by thunderstorm winds.
Thunderstorm straight line winds in central Martin County near the EF0 tornado, uprooted or snapped several large tree branches and a few whole trees, from Dover Hill to the Shoals area. Carport damage also occurred.
An EF-0 tornado with 0.49 miles path length, and path width of 85 yards moved through portions of Bartholomew County. The tornado began east of US Highway 31 and continued northeast through a tree line and into a corn field. A convergent wind pattern was noted. Peak winds were 85 mph.
Thunderstorm rainfall up to 6.00 inches caused widespread flash flooding across central and northern Daviess County, with at least 3 water rescues in Washington and at least 3 additional water rescues in other parts of the county from widespread inundated county roads, some with deep water flowing across; water additionally flowed into multiple homes. Flash flooding also impacted west-central Martin County where a CVS in Loogootee had water 2.5 feet deep at its lower back door, while water flowed over several roads north of Loogootee.
Thunderstorm winds downed a power pole with roof damage on Cody Road.
Thunderstorm straight line winds snapped large tree limbs in southeastern Martin County.
Thunderstorm rainfall up to 5.00 inches produced flash flooding in central Martin County as far east as the Shoals area. Water flowed over several roads, including the confluence of Sherfick Stream and Gushing Creek onto Boyd Hollow Road, as well as Beech Creek onto Rama Dye Road where floodwaters where nearly 1,000 feet wide to the north of the creek.
Thunderstorm rainfall of up to 2.50 inches in under 1.5 hours produced flash flooding in the Columbus area, closing County Road 525 East at Base Road, with water also on US Highway 11 just south of County Road 650 South.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2026Every state in 2026This day in weather historyThe tornado archive for Indiana, 2026Warnings in Indiana, June 2026
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: 1338283, 1338284, 1338429, 1338285, 1338430, 1338431, 1338485, 1338286, 1338287, 1338288, 1338289, 1338486, 1338290, 1338291, 1338294, 1338432, 1338293, 1338292, 1338433, 1338487, 1338295, 1338296, 1338488, 1338484.