Slow moving thunderstorms produced locally heavy rainfall, which led to flash flooding in a few locations across central Indiana. One large hail report and a couple damaging wind reports were also received.
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.
Slow moving thunderstorms produced locally heavy rainfall, which led to flash flooding in a few locations across central Indiana. One large hail report and a couple damaging wind reports were also received.
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 Aug 28, 5:39 PM EST, 51 minutes earlier.
Area Forecast Discussion National Weather Service Indianapolis IN 639 PM EDT SUN AUG 28 2016 .UPDATE... The AVIATION Section has been updated below. && .SYNOPSIS... Issued at 323 PM EDT Sun Aug 28 2016 A warm and humid airmass will remain in place through the early part of the work week, with chances for thunderstorms at times through Wednesday, before a broad area of surface high pressure moves into the area and brings cooler and drier conditions to central Indiana. && .NEAR TERM /Tonight/... Issued at 323 PM EDT Sun Aug 28 2016 Isolated showers and storms have managed to develop in a couple of spots this afternoon, but the bulk of this activity has remained along an axis north of central indiana and scattered to the south. Cannot rule out isolated storms through the afternoon and early evening and will carry low pops as a result. Any activity should dissipate with the loss of heating and the majority of the night will be dry as a result. Consensus numbers appeared reasonable overnight, and temps should be near persistence with no change in airmass. && .SHORT TERM /Monday through Wednesday/... Issued at 323 PM EDT Sun Aug 28 2016 Will again carry thunder chances mainly tomorrow afternoon as in the absence of more significant upper level support, any storms will be largely diurnally driven. Surface high pressure nudging further into the area should provide a dry spell Monday night into much of Tuesday before an upstream cold front begins to approach the area. The best chance for storms with this frontal system will be Wednesday as it traverses the area. Consensus numbers appeared reasonable throughout the period, with the exception of a minor bump upward on Monday highs as thicknesses suggest similar temperatures to today should be reached. && .LONG TERM /Wednesday night through Sunday/... Issued at 225 PM EDT Sun Aug 28 2016 Big change in store for the long term as models and ensembles in good agreement that strong high pressure in the wake of a cold front will bring dry...cooler and much drier air to the area. Regional blend handles this well. So, stuck with afternoon highs in the upper 70s and lower 80s through Saturday and lower to mid 80s Sunday. Overnight lows in the upper 50s and lower 60s look good as well. && .AVIATION /Discussion for the 290000Z TAFS/... Issued at 638 PM EDT Sun Aug 28 2016 Widely scattered convection continues across the area within an unstable air mass with lifted indices in the -8 to -10 range. Don't see much in the way of upper level support for this convection, so expecting most of the convective threat to end by 290200Z or so. Brief IFR visibility restrictions and gusty shifting winds in and near convective areas. CB based around 040. Otherwise, crossover temperatures suggest IFR conditions in fog should develop after 290600Z tonight. Low confidence in LIFR conditions as a light gradient may help keep the air mixed up a bit. Due to an expected light wind off the city, threat for IFR conditions at KIND is lower than the other terminals. Outside of convective areas, surface winds 6 kts or less tonight. && .IND Watches/Warnings/Advisories... NONE. && SYNOPSIS...NIELD NEAR TERM...NIELD SHORT TERM...NIELD LONG TERM...MK AVIATION...JAS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 427 PM EDT SUN AUG 28 2016 INZ021-028>031-035>049-051>057-060>065-067>072-291000- 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...SEYMOUR 427 PM EDT SUN AUG 28 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA. .DAY ONE...TONIGHT. OUTLOOK: ISOLATED THUNDERSTORMS. PATCHY FOG. HAZARDS: LIGHTNING...HEAVY DOWNPOURS AND GUSTY WINDS FROM THUNDERSTORMS. REDUCED VISIBILITIES IN FOG. TIMING: ISOLATED THUNDERSTORMS THROUGH MID TO LATE EVENING. PATCHY FOG OVERNIGHT. DISCUSSION: ISOLATED THUNDERSTORMS HAVE DEVELOPED IN THE WARM AND UNSTABLE AIRMASS. EXPECT THESE TO DIMINISH NEAR OR JUST AFTER SUNSET. PATCHY FOG WILL DEVELOP OVERNIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. OUTLOOK: THERE ARE OFF AND ON CHANCES FOR THUNDERSTORMS THROUGH THE FIRST HALF OF THE WEEK...WITH THE BEST CHANCES FOR STORMS ON WEDNESDAY. AT THIS TIME WIDESPREAD SEVERE STORMS ARE NOT EXPECTED. LIGHTNING...HEAVY RAIN...AND GUSTY WINDS WILL BE THE MAIN THREATS. DISCUSSION: A WARM HUMID AIR MASS AND WEAK UPPER WAVES NEARBY WILL KEEP OFF AND ON THUNDERSTORM CHANCES IN THE FORECAST UNTIL A COLD FRONT MOVES THROUGH ON WEDNESDAY AND USHERS IN COOLER DRIER AIR. .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 (ALL LOWERCASE) RYAN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
516 PM EDT SUN AUG 28 2016
INZ039-047-282215-
MARION IN-HAMILTON IN-
516 PM EDT SUN AUG 28 2016
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN HAMILTON AND MARION
COUNTIES UNTIL 615 PM EDT...
AT 514 PM EDT...DOPPLER RADAR WAS TRACKING SCATTERED STRONG
THUNDERSTORMS OVER PORTIONS OF THE INDIANAPOLIS METRO AREA. THESE
STORMS WERE MOVING VERY LITTLE.
NICKEL SIZE HAIL AND WINDS IN EXCESS OF 45 MPH WILL BE POSSIBLE WITH
ANY OF THE STRONGEST STORMS.
LOCATIONS IMPACTED INCLUDE...
INDIANAPOLIS...CARMEL...FISHERS...NOBLESVILLE...LAWRENCE...
BEECH GROVE...SPEEDWAY...SOUTHPORT...WESTFIELD...CUMBERLAND...
MERIDIAN HILLS...WARREN PARK...HOMECROFT...ROCKY RIPPLE...
WILLIAMS CREEK...WYNNEDALE...SPRING HILL...CROWS NEST...
NORTH CROWS NEST AND INDIANA STATE FAIRGROUNDS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO LOCALIZED FLOODING DUE TO THE NEARLY STATIONARY MOVEMENT. DO
NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS ALSO OCCURRING WITH THESE
STORMS. LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK
A SAFE SHELTER INSIDE A BUILDING OR VEHICLE.
&&
LAT...LON 4008 8587 3993 8591 3993 8594 3987 8594
3987 8595 3976 8595 3964 8598 3965 8633
3993 8626 3993 8624 3999 8624 4007 8622
TIME...MOT...LOC 2114Z 315DEG 6KT 3972 8605
RYANThe Indianapolis radar (KIND), 88 km away, was scanning. The volume nearest the first event began at 23:28 UTC.
4 flash flood, 2 thunderstorm wind, 1 hail. Local standard time, as filed.
County Road 500 East was flooded north of State Route 38, near the Flatrock River due to heavy thunderstorm rainfall. Local police blocked off the road.
Street flooding occurred at the intersection of Kilgore Avenue and Adams Street due to heavy thunderstorm rainfall. Police blocked the intersection.
Muncie Fire Department blocked roads east of Madison Street and south of Memorial Drive through 18th Street due to flash flooding from heavy thunderstorm rainfall. Water rescues were occurring on the south side of Muncie. No reports of any injuries.
Flooding occurred along State Road 241 at Ellerman Road near Decker due to heavy thunderstorm rainfall.
A tree was downed across Hickory Corner Road between State Road 241 and Monroe School Road due to damaging thunderstorm wind gusts. Also, a tree was reported to be down on a house in Monroe City.
A tree was downed on Meier Circle due to damaging thunderstorm wind gusts. No damage occurred to the property.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2016Every state in 2016This day in weather historyWarnings in Indiana, August 2016
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: 658652, 658595, 658655, 658660, 658663, 658604, 658608.