Showers and thunderstorms moved slowly east along a stalled out boundary that was in place across the Ohio Valley. Four to five inches of rain fell during the evening hours across parts of southeast Indiana.
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 ILN wrote it up.
Showers and thunderstorms moved slowly east along a stalled out boundary that was in place across the Ohio Valley. Four to five inches of rain fell during the evening hours across parts of southeast Indiana.
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 Wilmington, OH wrote its last area forecast discussion before the first event at Sep 8, 3:02 PM EST, 2 hours 24 minutes earlier.
Area Forecast Discussion National Weather Service Wilmington OH 402 PM EDT THU SEP 8 2016 .SYNOPSIS... Increasing moisture and a series of upper level disturbances will bring a chance of showers and thunderstorms to the Ohio Valley as a front move into the region from the north. Chances for showers and thunderstorms will remain in place through Saturday, when a cold front moves through, bringing drier conditions on Sunday and into next week. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... Mid level shortwave moving through the Great Lakes Will flatten out the northern portion of the ridge. Surface cold front will drop south into ILN/s northern counties overnight and stall out e-w parallel to the westerlies. In moist southwesterly flow PW/s will increase to 2.2 to 2.4 inches by Friday morning. Weak axis of 8H convergence to drop south and weaken during this evening. This will allow scattered showers and thunderstorms across the far northwest to weaken as it moves south across ILN/s FA. In this very moist environment, some of the storms may contain locally heavy rain. Given moderate instability in place early this evening, a few of the stronger storms could produce strong to severe winds. Lows will range from the upper 60s northwest to the lower 70s southeast. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY NIGHT/... Shortwave to lift northeast in moist southwesterly flow Friday. Numerical models generally consistent with this s/w inducing a weak surface wave that tracks ne from the Mid MS Vly into the Great Lakes Friday/Friday night. This will allow the stalled front to lift north as a warm front. Best pops look to be focused over the west-northwest Friday afternoon/Friday evening, where more favorable instability and forcing coincides. Have mention of likely pops over this location. Threat for local heavy rain will continue with max PW axis in excess of 2 inches lifting north across ILN/s FA Friday night. Temperatures to remain a little above normal Friday, with highs from the lower 80s northwest to the mid 80s southeast. Lows will be muggy Friday night in the warm sector with readings around 70. Progressive mid level shortwave to move through the Great Lakes Saturday. Deepening surface low to track from the Upper MS VLY through the Great Lakes. Trailing the sfc low, a cold front will sweep east through ILN/s FA Saturday afternoon. Expect storms to develop in the axis of moderate instability that develops along and ahead of this front. Given wind flow, the potential exists for storms to organize into line segments with damaging winds being a threat. Have increased pops to likely with this fropa. Temperatures will show a good gradient with highs from near 80 northwest to the upper 80s southeast. In the wake of this front, surface high pressure builds in from the west Saturday night. Precipitation to come to an end Saturday evening with diminishing cloud overnight. Cooler and drier air advects in with lows in the mid and upper 50s. && .LONG TERM /SUNDAY THROUGH THURSDAY/... Period begins with the region in a post frontal regime as high pressure builds east up the Ohio River Valley. Dry conditions will prevail through Tuesday, as the high will control the region's weather. Highs will be 70s on Sunday, then gradually warm to the 80s by Tuesday. Late Tuesday night into Wednesday, a cdfnt will drop into the area as a H5 s/w swings across the Great Lakes. There will be a chance of thunderstorms as the front pushes through. Highs Wednesday will be cooler, in the 70s, due to the rain chances. Another high pressure system will build in Wednesday night into Thursday. && .AVIATION /20Z THURSDAY THROUGH TUESDAY/... A frontal boundary will sag slowly southeast into northern Indiana and northern Ohio tonight. Ahead of this boundary, warm, moist advection, coupled with some embedded upper level disturbances, will bring a chance of showers and thunderstorms. Best chance at this time near the terminals will generally be between 00Z and 06Z with decreasing coverage expected by 12Z in the wake of the disturbances and at minimal diurnal instability. Of greater concern overnight and into Friday will be increasing low level moisture. Most models continue to suggest that ceilings and visibilities will lower as winds become light and saturation occurs. Have allowed ceilings to drop into the IFR/LIFR category with visibilities dropping into the MVFR/IFR category. On Friday, as a mid level trough digs southeast into the northern Plains, stalled out frontal boundary will gradually lift northeast as a warm front. Diurnal heating should allow visibilities to improve back to VFR between 15Z and 18Z with ceilings improving back to VFR between 21Z and 00Z. There could be some scattered showers and storms as we head into the afternoon hours, but coverage seems low enough to not mention in the KCVG 30 hour terminal at this time. OUTLOOK...Thunderstorms possible through Saturday. && .ILN WATCHES/WARNINGS/ADVISORIES... OH...None. KY...None. IN...None. && SYNOPSIS...AR NEAR TERM...AR SHORT TERM...AR LONG TERM...Sites AVIATION...Hickman
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 417 PM EDT THU SEP 8 2016 INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046- 051>056-060>065-070>074-077>082-088-092030- WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO- SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT- PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-DARKE- SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON- FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY- FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN- HIGHLAND-ADAMS-PIKE-SCIOTO- 417 PM EDT THU SEP 8 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO. .DAY ONE...TONIGHT. A FEW STORMS THIS EVENING MAY PRODUCE STRONG TO SEVERE WINDS AND HEAVY RAINFALL. THE HEAVY RAINFALL MAY PRODUCE LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. SCATTERED THUNDERSTORMS ARE EXPECTED FRIDAY THROUGH SATURDAY. SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL AND LOCALIZED FLOODING. A FEW OF THE STORMS ESPECIALLY ON SATURDAY AFTERNOON MAY PRODUCE STRONG TO SEVERE WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
342 PM EDT THU SEP 8 2016
INZ050-082015-
WAYNE IN-
342 PM EDT THU SEP 8 2016
...A STRONG THUNDERSTORM WILL AFFECT NORTHERN WAYNE COUNTY UNTIL 415
PM EDT...
AT 341 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM OVER
HAGERSTOWN...MOVING EAST AT 30 MPH.
STORM HAZARDS INCLUDE...
WINDS TO 30 MPH...
LOCATIONS IMPACTED INCLUDE...
RICHMOND...CENTERVILLE...HAGERSTOWN...FOUNTAIN CITY...FRANKLIN...
GREENS FORK...SPRING GROVE...BETHEL...ECONOMY...WHITEWATER...
JACKSONBURG...INTERSTATE 70 AT EXIT 145...
WILLIAMSBURG AND MIDDLEBORO.
THIS INCLUDES THE FOLLOWING INTERSTATES...
I-70 IN INDIANA BETWEEN MILE MARKERS 134 AND 156.
I-70 IN OHIO NEAR MILE MARKER 0.
TO REPORT HAZARDOUS WEATHER CONDITIONS...GO TO OUR WEBSITE AT
WEATHER.GOV/ILN AND SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU
CAN DO SO SAFELY.
LAT...LON 3987 8520 4000 8520 4000 8482 3983 8481
3984 8522 3987 8522
TIME...MOT...LOC 1941Z 268DEG 28KT 3994 8519
SITESSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 509 PM EDT THU SEP 8 2016 INZ050-058-059-OHZ060-082145- WAYNE IN-FAYETTE IN-UNION IN-PREBLE OH- 509 PM EDT THU SEP 8 2016 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN WAYNE...NORTHEASTERN FAYETTE...NORTHERN UNION COUNTIES IN EAST CENTRAL INDIANA AND NORTHWESTERN PREBLE COUNTIES IN WEST CENTRAL OHIO UNTIL 545 PM EDT... AT 509 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR CENTERVILLE...MOVING EAST AT 45 MPH. STORM HAZARDS INCLUDE... WINDS TO 50 MPH... VERY HEAVY RAIN... LOCATIONS IMPACTED INCLUDE... RICHMOND...CONNERSVILLE...CENTERVILLE...CAMBRIDGE CITY...NEW PARIS... WATERLOO...ABINGTON...BROWNSVILLE...ELDORADO...EAST GERMANTOWN... SPRING GROVE...BOSTON...LAKE LAKENGREN...WEST FLORENCE...NEW HOPE... SPRINGERSVILLE...KITCHEL...CLIFTON...SUGAR VALLEY AND METTEL FIELD. THIS INCLUDES THE FOLLOWING INTERSTATES... I-70 IN INDIANA BETWEEN MILE MARKERS 153 AND 156. I-70 IN OHIO BETWEEN MILE MARKERS 0 AND 7. WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES STRONGER...THEN A WARNING MAY BE NEEDED. TO REPORT HAZARDOUS WEATHER CONDITIONS...GO TO OUR WEBSITE AT WEATHER.GOV/ILN AND SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU CAN DO SO SAFELY. LAT...LON 3963 8518 3980 8520 3991 8468 3966 8466 TIME...MOT...LOC 2109Z 253DEG 41KT 3975 8506 AR
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 544 PM EDT THU SEP 8 2016 INZ050-059-OHZ060-061-070-071-082215- WAYNE IN-UNION IN-WARREN OH-MONTGOMERY OH-PREBLE OH-BUTLER OH- 544 PM EDT THU SEP 8 2016 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN WAYNE AND EASTERN UNION COUNTIES IN EAST CENTRAL INDIANA...NORTHWESTERN WARREN COUNTY IN SOUTHWESTERN OHIO...WESTERN MONTGOMERY...PREBLE COUNTIES IN WEST CENTRAL OHIO AND NORTHERN BUTLER COUNTIES IN SOUTHWESTERN OHIO UNTIL 615 PM EDT... AT 544 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM 7 MILES EAST OF LIBERTY...MOVING EAST AT 35 MPH. STORM HAZARDS INCLUDE... WINDS TO 50 MPH... VERY HEAVY RAIN... LOCATIONS IMPACTED INCLUDE... MIDDLETOWN...RICHMOND...TROTWOOD...FRANKLIN...EATON...CARLISLE... CAMDEN...WEST ALEXANDRIA...GRATIS...WEST COLLEGE CORNER...SALEM... BROOKVILLE...GERMANTOWN...NEW LEBANON...FARMERSVILLE... COLLEGE CORNER...SOMERVILLE...WEST ELKTON...BOSTON AND JACKSONBURG. THIS INCLUDES I-70 IN OHIO BETWEEN MILE MARKERS 15 AND 21...AND BETWEEN MILE MARKERS 23 AND 24. WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES STRONGER...THEN A WARNING MAY BE NEEDED. TO REPORT HAZARDOUS WEATHER CONDITIONS...GO TO OUR WEBSITE AT WEATHER.GOV/ILN AND SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU CAN DO SO SAFELY. LAT...LON 3953 8489 3979 8490 3986 8437 3954 8432 TIME...MOT...LOC 2144Z 262DEG 31KT 3967 8480 AR
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
620 PM EDT THU SEP 8 2016
OHZ060>062-070-071-082245-
GREENE OH-WARREN OH-MONTGOMERY OH-PREBLE OH-BUTLER OH-
620 PM EDT THU SEP 8 2016
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN GREENE...NORTHERN
WARREN...SOUTHERN MONTGOMERY...SOUTHEASTERN PREBLE AND NORTHEASTERN
BUTLER COUNTIES UNTIL 645 PM EDT...
AT 620 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR GRATIS...
MOVING EAST AT 40 MPH.
STORM HAZARDS INCLUDE...
WINDS TO 40 MPH...
VERY HEAVY RAIN...
LOCATIONS IMPACTED INCLUDE...
DAYTON...KETTERING...MIDDLETOWN...BEAVERCREEK...MIAMISBURG...
SPRINGBORO...TRENTON...FRANKLIN...BELLBROOK...MORAINE...CARLISLE...
OAKWOOD...WEST CARROLLTON...WAYNESVILLE...GRATIS...HUNTER...
RIVERSIDE...GERMANTOWN...FARMERSVILLE AND HARVEYSBURG.
THIS INCLUDES I-75 IN OHIO BETWEEN MILE MARKERS 34 AND 53.
WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.
RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.
TO REPORT HAZARDOUS WEATHER CONDITIONS...GO TO OUR WEBSITE AT
WEATHER.GOV/ILN AND SUBMIT YOUR REPORT VIA SOCIAL MEDIA...WHEN YOU
CAN DO SO SAFELY.
LAT...LON 3978 8402 3949 8398 3949 8399 3950 8456
3970 8457
TIME...MOT...LOC 2220Z 265DEG 33KT 3962 8446
ARPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
623 PM EDT THU SEP 08 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0622 PM HEAVY RAIN 2 W EVERTON 39.56N 85.12W
09/08/2016 M1.61 INCH FAYETTE IN PUBLIC
&&
ALANRThe Cincinnati radar (KILN), 94 km away, was scanning. The volume nearest the first event began at 22:24 UTC.
5 flash flood, 1 thunderstorm wind. Local standard time, as filed.
A couple of trees were downed across Barber Road near Lawson Lane.
Over 2 feet of water was over a road in downtown Napoleon. Several roads elsewhere across the county were also impassable due to high water.
State Route 46 was nearly impassable due to water flowing across it.
Water was flowing over several roads across Franklin County, including U.S. Route 52. One bridge on River Road sustained significant damage. On Big Cedar Road, the pavement on a section of the road was peeled away and laid into a field beside the road. Several other bridge approaches were damaged in the county and numerous culvert pipes were destroyed.
High water was reported on several roadways in the Lawrenceville area. Two motorists had to be rescued from cars in flood waters on Trackville Road and Lawrenceville Road.
Evacuations were necessary at a retirement community when water started to enter some buildings.
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, September 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: 649317, 649319, 649320, 649321, 649322, 649324.