Scattered thunderstorms developed as several outflow boundaries interacted with an unstable and moderately sheared environment. A few of the storms produced marginally severe wind gusts.
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 IWX wrote it up.
Scattered thunderstorms developed as several outflow boundaries interacted with an unstable and moderately sheared environment. A few of the storms produced marginally severe wind gusts.
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 Northern Indiana wrote its last area forecast discussion before the first event at Jun 29, 2:32 PM EST, 40 minutes earlier.
Area Forecast Discussion National Weather Service Northern Indiana 332 PM EDT Tue Jun 29 2021 .SYNOPSIS... Issued at 248 PM EDT Tue Jun 29 2021 A warm and humid airmass will support periodic showers and storms through Thursday with the best chances during the late afternoon and evening each day. Isolated damaging winds and localized heavy rain are possible. Cooler and less humid conditions return for the holiday weekend. && .SHORT TERM...(This Evening through Wednesday) Issued at 248 PM EDT Tue Jun 29 2021 Storms have initiated along a weak surface trough that extends from near Detroit southwest into central Illinois, therefore directly through the middle of the local forecast area. Severe weather has not been reported, and if any stronger storms do develop, the biggest threats will be heavy rain, isolated damaging wind, or small hail. There is ample low level instability with substantial moisture and heating today supporting an MLCAPE over 2000 J/kg, but there is a lack of upper level support with 850 mb winds only around 20 kts and the jet stream well to the northwest. So any severe storms will be isolated. Convection is expected to die down again overnight and the surface convergence zone will shift south as the upper trough to the north finally starts to dig into the Great lakes. This will become the focus for storms to develop on Wednesday afternoon, which should also be sub- severe due to weak shear. && .LONG TERM...(Wednesday Night through Tuesday) Issued at 248 PM EDT Tue Jun 29 2021 The upper trough continues to dig Wednesday night, and surface high pressure builds in. Low-level moisture will remain high, especially since there has been so much rain, and surface winds will become light under the inversion, so patchy for will be possible. The surface boundary will also remain near the area, but continue its slow progression southward, so there could still be some showers. Then on Thursday the flow shifts to the northwest with the passage of the trough axis and cold front. This pushes convection even farther south, although there still may be some lingering across the southeast corner of the cwa. Cooler and drier air will funnel in behind this front, and by Friday highs will only be in the mid 70s. The upper low will rotate through the eastern Great Lakes on Friday, cut across the Mid-Atlantic on Saturday, and eject northeastward on Sunday. In it's wake, high pressure ridging will build in from the west. There could be a few lingering showers across the east on Friday and perhaps an isolated thunderstorm, but then Saturday and the 4th of July should be dry. The high will allow temps to warm back up during this period, but only into the low 80s for the holiday. It will rise back into the mid 80s on Monday and Tuesday. The ridge is also expected to flatten on Tuesday with a shortwave moving through, and we could again see showers and thunderstorms. && .AVIATION...(For the 18Z TAFS through 18Z Wednesday Afternoon) Issued at 133 PM EDT Tue Jun 29 2021 Sctd convection has been firing across the region this aftn in a moist and unstable airmass. A somewhat diffuse bndry from cntrl IL newd into MI will help to focus storms into the evening period though most are expected to remain below severe criteria. This activity will dissipate around after sunset with loss of daytime heating. Expect mainly MVFR cigs at KSBN while remaining VFR at KFWA except for a brief period this aftn. Winds will be variable overnight. && .IWX WATCHES/WARNINGS/ADVISORIES... IN...NONE. MI...NONE. OH...NONE. LM...NONE. && SYNOPSIS...AGD/Cobb SHORT TERM...Cobb LONG TERM...Cobb AVIATION...MF Visit us at www.weather.gov/iwx Follow us on Facebook...Twitter...and YouTube at: www.facebook.com/NWSNorthernIndiana www.twitter.com/nwsiwx www.youtube.com/NWSNorthernIndiana
Hazardous Weather Outlook National Weather Service Northern Indiana 333 PM EDT Tue Jun 29 2021 INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005- 015-016-024-025-301945- La Porte-St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke- Pulaski-Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN- Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Berrien- Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance- Henry-Paulding-Putnam-Van Wert-Allen OH- 333 PM EDT Tue Jun 29 2021 /233 PM CDT Tue Jun 29 2021/ This Hazardous Weather Outlook is for northern Indiana, southwest Michigan and northwest Ohio. .DAY ONE...This afternoon and tonight. Scattered thunderstorms are expected this afternoon and evening. There is a chance for isolated damaging winds and heavy rain. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periodic thunderstorms will continue through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. LMZ043-046-301945- New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI- 333 PM EDT Tue Jun 29 2021 This Hazardous Weather Outlook is for the nearshore waters of southeastern Lake Michigan. .DAY ONE...This afternoon and tonight. Thunderstorms are possible this afternoon and evening. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periodic thunderstorms will continue through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Northern Indiana
332 PM EDT Tue Jun 29 2021
INZ005-008-016-292015-
Noble-Kosciusko-Elkhart-
332 PM EDT Tue Jun 29 2021
...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN ELKHART...
NORTHWESTERN NOBLE AND NORTHEASTERN KOSCIUSKO COUNTIES...
At 331 PM EDT, a strong thunderstorm was located over North Webster,
or near Syracuse, moving northeast at 20 mph.
Wind gusts up to 50 mph are possible with this storm.
This storm will be near...
North Webster around 335 PM EDT.
Syracuse around 345 PM EDT.
Millersburg around 405 PM EDT.
Ligonier around 410 PM EDT.
Other locations impacted by this storm include Oswego, Big Barbee
Lake, Leesburg, Wilmot, James Lake, Irish Lake, Knapp Lake, Cromwell,
Kimmel and Sechrist Lake.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4142 8542 4130 8563 4130 8565 4128 8565
4125 8571 4132 8589 4154 8569
TIME...MOT...LOC 1931Z 222DEG 18KT 4133 8574
HAIL...0.25
WIND...50MPH
JBALLSpecial Weather Statement
National Weather Service Northern Indiana
345 PM EDT Tue Jun 29 2021
MIZ080-081-292030-
Branch-Hillsdale-
345 PM EDT Tue Jun 29 2021
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL BRANCH AND NORTHWESTERN
HILLSDALE COUNTIES...
At 345 PM EDT, a strong thunderstorm was located near Coldwater,
moving northeast at 20 mph.
Wind gusts of 50 to 55 mph are possible with this storm.
This storm will be near...
Coldwater around 400 PM EDT.
Quincy around 410 PM EDT.
Other locations impacted by this storm include Batavia, South Butler,
Girard, East Gilead, Marble Lake, Lake Of The Woods and Hodunk.
This includes Interstate 69 in Michigan between mile markers 5 and
21.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4203 8467 4177 8507 4187 8526 4207 8506
4207 8473
TIME...MOT...LOC 1945Z 216DEG 19KT 4190 8509
HAIL...0.25
WIND...55MPH
JBALLPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
354 PM EDT TUE JUN 29 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0331 PM HAIL 1 WNW TIPPECANOE LAKE 41.33N 85.77W
06/29/2021 U0.50 INCH KOSCIUSKO IN PUBLIC
REPORT FROM MPING: HALF-INCH (0.50 IN.).
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
356 PM EDT TUE JUN 29 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0349 PM HAIL BIPPUS 40.94N 85.62W
06/29/2021 E0.25 INCH HUNTINGTON IN LAW ENFORCEMENT
RELAYED BY EMA.
&&
MSLSpecial Weather Statement
National Weather Service Northern Indiana
358 PM EDT Tue Jun 29 2021
INZ006-008-017-292045-
Lagrange-Whitley-Noble-
358 PM EDT Tue Jun 29 2021
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NOBLE...NORTHEASTERN
WHITLEY AND SOUTHEASTERN LAGRANGE COUNTIES...
At 358 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Albion to near Tri-lakes. Movement
was northeast at 20 mph.
Wind gusts up to 50 mph are possible with these storms.
These storms will be near...
Albion around 405 PM EDT.
Rome City around 415 PM EDT.
Churubusco around 420 PM EDT.
Kendallville around 445 PM EDT.
Other locations impacted by these storms include Wolcottville,
Brimfield, Ege, Green Center, Mongo, Indianola, Lisbon, Brushy
Prairie, Merriam and Blue Lake.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4171 8520 4126 8528 4126 8531 4123 8531
4119 8553 4148 8558
TIME...MOT...LOC 1958Z 232DEG 17KT 4145 8546 4125 8552
HAIL...0.25
WIND...50MPH
JBALLSpecial Weather Statement
National Weather Service Northern Indiana
406 PM EDT Tue Jun 29 2021
INZ017-018-292045-
Whitley-Allen-
406 PM EDT Tue Jun 29 2021
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ALLEN AND
SOUTHEASTERN WHITLEY COUNTIES...
At 406 PM EDT, a strong thunderstorm was located 7 miles southeast of
Columbia City, moving northeast at 35 mph.
Wind gusts of 50 to 55 mph are possible with this storm.
This storm will be near...
Fort Wayne around 430 PM EDT.
Huntertown around 435 PM EDT.
Other locations impacted by this storm include Laud, Raber, Arcola,
Dunfee, Rolling Hills, Coesse, Wallen, Lake Everett, Peabody and
Aboite.
This includes Interstate 69 in Indiana between mile markers 300 and
312.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4100 8550 4112 8549 4127 8517 4126 8512
4101 8515 4100 8533
TIME...MOT...LOC 2006Z 234DEG 32KT 4106 8543
HAIL...0.25
WIND...55MPH
JBALLThe Northern Indiana radar (KIWX), 28 km away, was scanning. The volume nearest the first event began at 20:13 UTC.
2 thunderstorm wind. Local standard time, as filed.
Local law enforcement reported trees down on County Road 500 North, east of County Road 300 East.
A spotter recorded a 59 mph wind gust.
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: 969915, 969916.