Scattered thunderstorms developed across portions of central Indiana during the afternoon hours of June 1st. As these storms pushed generally south or south-southeast, a few of them downed trees, limbs, power lines across locations south of Interstate 70.
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.
Scattered thunderstorms developed across portions of central Indiana during the afternoon hours of June 1st. As these storms pushed generally south or south-southeast, a few of them downed trees, limbs, power lines across locations south of Interstate 70. One of the strong thunderstorms moved across Monroe Lake and a 26-year-old man that was swimming in the lake drowned as the wind and the rain kicked up.
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 1, 4:00 PM EST, 8 minutes earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 500 PM EDT Fri Jun 1 2018 .UPDATE... The Aviation Section has been updated below. && .SYNOPSIS... Issued at 240 PM EDT Fri Jun 1 2018 A diffuse cold front will pass south through the area during the afternoon and evening hours today. Another frontal system is expected to affect the area around Saturday night into Sunday. High pressure is expected over the area for most of next week. && .NEAR TERM /Rest of This Afternoon and Tonight/... Issued at 240 PM EDT Fri Jun 1 2018 Diffuse frontal boundary currently over the northern and central zones, while an enhanced lake breeze front is dropping south towards the far northwest zones. Isolated to scattered convection developing near both these boundaries. Expecting some increase in convection as the afternoon goes by with continued heating in a moderately unstable environment. Short term model data suggests the diffuse cold front will pass off to the south of the forecast area around 020100Z-020200Z. Will keep some chance PoPs along and ahead of the boundary as it drifts south for the rest of the afternoon and early evening hours. Will cut off the PoPs this evening as the front passes off to the south. The rest of the night should be dry as a more stable air mass advects in from the north. Low level thicknesses generally support the GFS MOS lows tonight, so little if any adjustments planned. && .SHORT TERM /Saturday through Monday/... Issued at 240 PM EDT Fri Jun 1 2018 Dry conditions expected on Saturday as surface high pressure noses into the area from the north. There will probably be increasing high level cloud during the afternoon hours, as well as some diurnal cloud. Model data suggest an upper trough will drop southeast from the northern Plains into the Midwest by Sunday. There is some organized lift that may be associated with this feature, but 850mb flow doesn't look all that impressive. Will put some PoPs in the forecast for Saturday night into Sunday to cover this feature. In the wake of this trough, a northwest flow will gradually advect a more stable air mass into the area. Will go dry for Sunday night and Monday. Progged low level thicknesses suggest the GFS MOS highs for Saturday look a little warm, and the lows Sunday night look a little cool. Will make some adjustments to the guidance at those times. The remaining periods look OK the remaining Remainder of periods look OK for now. && .LONG TERM /Monday Night through Friday/... Issued at 229 PM EDT Fri Jun 1 2018 ECMWF suggests a quick moving short wave aloft drifting SW of the forecast area on Tuesday Night and into Wednesday before NW flow and Ridging builds aloft through Thursday. This should keep dry weather in place across Central Indiana next work week along with cooler air amid NW flow. Forecast builder suggests some pops on Thursday through Friday...but confidence in this is low as the ECMWF suggest ridging aloft and a lack of upper support. Thus some low chance pops will be included on Thursday and Friday per the builder and due the changeability of later model runs. && .AVIATION /Discussion for the 012100z Tafs/... Issued at 500 PM EDT Fri Jun 1 2018 Updated KIND to keep VCTS in until 00z based on satellite and radar loops showing ongoing convection. Previous discussion follows... Mainly VFR Conditions are expected this TAF Period. Radar shows lake breeze enhanced showers/storms NW of the forecast area progressing southeast. Furthermore...over the next few hours forecast soundings show conditions favorable for diurnal convection. Thus have included VCTS mention through the afternoon as scattered showers and isolated storms across the area are expected to develop. Should any TSRA strike a TAF site...brief MVFR or IFR conditions will be possible. After heating is lost this evening...high pressure and subsidence is expected to build across Central Indiana...leading to VFR conditions and only some high passing CI. && .IND WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...JAS NEAR TERM...JAS SHORT TERM...JAS LONG TERM....Puma AVIATION...JP/CP
Hazardous Weather Outlook National Weather Service Indianapolis IN 422 PM EDT Fri Jun 1 2018 INZ021-028>031-035>049-051>057-060>065-067>072-021000- 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 Lafayette, Frankfort, Kokomo, Crawfordsville, Anderson, Muncie, Indianapolis, Terre Haute, Shelbyville, Bloomington, Columbus, Vincennes, Bedford, and Seymour 422 PM EDT Fri Jun 1 2018 This hazardous weather outlook is for central Indiana. .DAY ONE...Tonight. Outlook: Widely scattered thunderstorm activity is expected into the early evening hours. Severe storms are not expected at this time. Hazards: Cloud to ground lightning, gusty winds in and near thunderstorms, small hail, and brief heavy rainfall. Timing: Thunderstorms activity possible through 1000 PM EDT. Discussion: A diffuse cold front is expected to drift south through the area during the late afternoon and early evening hours. Widely scattered thunderstorms are possible near the frontal zone. The thunderstorm threat is expected to end later this evening as the front pushes off to the south. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Outlook: Thunderstorm activity is possible Saturday night into Sunday. Severe storms are not expected at this time. Discussion: Low pressure and an associated frontal boundary will track across the area late Saturday night into Sunday with showers and embedded thunderstorms. Dry conditions are expected through the early and middle parts of next week. .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
508 PM EDT FRI JUN 1 2018
INZ057-065-012200-
Rush IN-Decatur IN-
508 PM EDT FRI JUN 1 2018
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN RUSH AND DECATUR
COUNTIES UNTIL 600 PM EDT...
At 508 PM EDT, Doppler radar was tracking a strong thunderstorm near
Greensburg, or 14 miles southeast of Shelbyville, moving southeast at
15 mph.
Dime size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Greensburg, Adams, Milford, St. Paul, Milroy, Millhousen, Newpoint,
Letts, Sandusky and Moscow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to 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 3915 8554 3935 8564 3935 8563 3948 8563
3953 8548 3927 8530
TIME...MOT...LOC 2108Z 335DEG 14KT 3942 8554
CPThe Indianapolis radar (KIND), 69 km away, was scanning. The volume nearest the first event began at 21:06 UTC.
6 thunderstorm wind. Local standard time, as filed.
Power lines were downed in this location due to strong thunderstorm wind gusts.
Trees and power lines were downed due to damaging thunderstorm wind gusts. There was also some structural damage to a barn, with some of the debris from the barn laying on three vehicles.
Trees were reported to be down across a road due to damaging thunderstorm wind gusts.
Trees, one foot in diameter, were downed in the median of Interstate 65 near mile marker 59 due to damaging thunderstorm wind gusts.
A six-inch diameter tree limb was blown down near the Monroe-Brown County line at State Road 46 due to strong thunderstorm wind gusts. A 40 mph wind gust accompanied this activity.
WTHR-13 reported that Indiana Conservation officers found the body of 26-year-old man around 7:30pm Sunday the 3rd while searching Monroe Lake with side scan sonar equipment. He was in about 15 feet of water near the area where he had been swimming from his boat.
An Indiana Department of Natural Resources spokesperson said the man was swimming off a pontoon he rented with three friends when he disappeared Friday evening as a thunderstorm with strong winds passed overhead.
Friends say the man was a good swimmer, which might have been why he went into the water without a life jacket. When a storm suddenly kicked up out on the lake though, it was too much for him.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Thunderstorm Wind, Monroe | 2018-06-01 | 26 | Male | In Water | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2018Every state in 2018This day in weather historyWarnings in Indiana, June 2018
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: 762826, 762827, 762828, 762829, 762830, 769097.