Isolated slow moving thunderstorms developed across southern Indiana during the evening of June 16th. The strongest storm brought several reports of wind damage and heavy rain near Henryville in Clark County, 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 LMK wrote it up.
Isolated slow moving thunderstorms developed across southern Indiana during the evening of June 16th. The strongest storm brought several reports of wind damage and heavy rain near Henryville in Clark County, 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 Louisville, KY wrote its last area forecast discussion before the first event at Jun 16, 2:12 PM EST, 2 hours 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOUISVILLE KY 312 PM EDT SAT JUN 16 2012 .Short Term (Tonight - Sunday Night)... Issued at 306 PM EDT Sat June 16 2012 The chance for precipitation will remain the main challenge through the short term period. This afternoon, multiple boundaries can be seen on satellite and radar images. The most notable one is the outflow boundary from this morning's convection. It is currently stretched from Washington county in southern Indiana to Taylor county in central Kentucky. Showers and thunderstorms should continue to fire along this boundary this afternoon. However, isolated to scattered storms could develop almost anywhere in the unstable atmosphere. The convection from this afternoon should wane after sunset. Will dry out the forecast from 03-06Z. A weakening boundary from convection firing across Missouri and Iowa this afternoon will move into the area late tonight from the west. The most recent mesoscale models suggest much of the convection with this system will have dissipated by the time it reaches the forecast area. Another round of storms then looks to develop in the afternoon across the northern half of the forecast area as the cold front drops down from the north. A few strong storms may develop tomorrow afternoon with gusty winds and small hail. This convection may depend on cloud cover and how widespread the morning showers and thunderstorms are, however. Precipitation should move out Sunday night. Temperatures will remain on the warm side through the short term. Lows tonight and tomorrow night will be in the mid 60s to around 70. Highs tomorrow will be in the mid to upper 80s. The coverage of precipitation will likely have an effect on high temperatures tomorrow, however. .Long Term (Monday - Saturday)... Issued at 300 PM EDT Sat Jun 16 2012 Monday through Wednesday... At the start of the forecast period, all models agree that heights aloft will build quickly resulting in the re-emergence of a large dome of high pressure aloft across the Ohio Valley to mid Atlantic states. Resulting warming aloft will suppress any convective storm development, leaving a clear to partly cloudy sky with increasing heat during the day. Afternoon highs Monday will be in the upper 80s and lower 90s, with 90 to 95 Tuesday and Wednesday afternoons. By Wednesday afternoon, an isolated thunderstorm or two could occur over our eastern forecast area with slight moistening in the atmosphere, but will keep forecast dry for now. Thursday through Saturday... The upper high will lose its grip on the Ohio Valley during this period with upper heights lowering resulting in a little cooling aloft. Models also suggest some moistening in the atmosphere around back side of upper high. This should lead to at least isolated or perhaps scattered thunderstorms on Thursday, mainly over eastern half of forecast area, much of it diurnal in nature from morning into the evening Thursday. The retreating and weakening ridge will be replaced by increasing westerly flow aloft as a strong shortwave progresses across the north-central Plains and Upper Mississippi Valley. This system will drive a cold front southeastward into the Ohio Valley Thursday night and Friday. The front should have plentiful moisture and instability to work with, so scattered to perhaps numerous thunderstorms should occur along and ahead of the front on Friday. The front should push through much of central Kentucky late Friday and Saturday. How far south the front gets before stalling or washing out will be a function of the strength of the parent shortwave as it progresses eastward to our north. The strength of this system is tenuous at this time, with some model discrepancy. This will also affect the amount of post-frontal cooling next Saturday, with at least our northern and eastern forecast area holding in the lower to mid 80s for highs. && .Aviation (18Z TAF Issuance)... Issued at 105 PM EDT Sun Jun 16 2012 The main challenge this TAF period is the chances for precipitation this afternoon and again late tonight into tomorrow morning. There are some showers in the vicinity of LEX and SDF currently. At SDF the air is fairly worked over, so it may be hard for any thunderstorms to develop. The convection heading for LEX weakened as well. For now, will keep VCSH in the TAFs for these sites, but will watch closely for any thunderstorms. The chance for storms looks to be even lower at BWG so will keep it dry for this afternoon. Overnight a trough will approach and cross the region with a cold front nearing tomorrow. Will insert VCSH once again for this time period. Confidence for this system is too low and it is too far in the future to include VCTS as the models are having a hard time even with the ongoing precipitation. && .LMK WATCHES/WARNINGS/ADVISORIES... IN...NONE. KY...NONE. Short Term.......EER Long Term........TWF Aviation.........EER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LOUISVILLE KY 336 PM EDT SAT JUN 16 2012 INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067- 070>078-081-082-171945- ORANGE IN-WASHINGTON IN-SCOTT IN-JEFFERSON IN-DUBOIS IN- CRAWFORD IN-PERRY IN-HARRISON IN-FLOYD IN-CLARK IN-HANCOCK KY- BRECKINRIDGE KY-MEADE KY-OHIO KY-GRAYSON KY-HARDIN KY-BULLITT KY- JEFFERSON KY-OLDHAM KY-TRIMBLE KY-HENRY KY-SHELBY KY-FRANKLIN KY- SCOTT KY-HARRISON KY-SPENCER KY-ANDERSON KY-WOODFORD KY- FAYETTE KY-BOURBON KY-NICHOLAS KY-NELSON KY-WASHINGTON KY- MERCER KY-JESSAMINE KY-CLARK KY-LARUE KY-MARION KY-BOYLE KY- GARRARD KY-MADISON KY-BUTLER KY-EDMONSON KY-HART KY-GREEN KY- TAYLOR KY-CASEY KY-LINCOLN KY-LOGAN KY-WARREN KY-SIMPSON KY- ALLEN KY-BARREN KY-MONROE KY-METCALFE KY-ADAIR KY-RUSSELL KY- CUMBERLAND KY-CLINTON KY- 336 PM EDT SAT JUN 16 2012 /236 PM CDT SAT JUN 16 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL INDIANA AND CENTRAL KENTUCKY. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED TO SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH THE AFTERNOON AND INTO THIS EVENING IN THE WARM AND UNSTABLE ATMOSPHERE. THESE SHOULD DIMINISH AROUND SUNSET. MORE THUNDERSTORMS MAY MOVE IN LATE TONIGHT FROM THE WEST. ANY STORM THAT DEVELOPS WILL BE CAPABLE OF PRODUCING BRIEF HEAVY RAINFALL AND DANGEROUS CLOUD TO GROUND LIGHTNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. A COMPLEX OF STORMS IS FORECAST TO CROSS THE AREA SUNDAY SOUTH OF A COLD FRONT PASSING TO OUR NORTH. SCATTERED THUNDERSTORMS ARE EXPECTED ON AND OFF THROUGHOUT THE DAY TAPERING OFF SUNDAY EVENING. THE MAIN THREATS WITH THESE STORMS WILL BE HEAVY RAINFALL AND CLOUD TO GROUND LIGHTNING. SOME OF THE STORMS SUNDAY AFTERNOON MAY BECOME STRONG WITH GUSTY WINDS AND SMALL HAIL. ISOLATED THUNDERSTORMS ARE POSSIBLE AGAIN OVER PARTS OF CENTRAL KENTUCKY THURSDAY IN THE HEAT OF DAY. A BETTER CHANCE OF THUNDERSTORMS WILL OCCUR FRIDAY AS A COLD FRONT APPROACHES FROM THE NORTHWEST. THOSE STORMS MAY BE ACCOMPANIED BY GUSTY WINDS...HEAVY RAIN...AND CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. EER/TWF
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LOUISVILLE KY 450 PM EDT SAT JUN 16 2012 KYC029-162120- BULLITT KY- 450 PM EDT SAT JUN 16 2012 ...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...HALF INCH HAIL...AND 40 MPH WINDS... AT 447 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES NORTHEAST OF SHEPHERDSVILLE THIS STORM WAS NEARLY STATIONARY. OCCASIONAL LIGHTNING...HEAVY RAIN WITH RAINFALL RATES OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...HALF INCH HAIL...AND GUSTY WINDS OF AROUND 35 TO 45 MPH...ARE EXPECTED WITH THIS STORM. * THIS STORM WILL ALSO IMPACT... MAINLY RURAL AREAS OF CENTRAL BULLITT COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS OCCURRING. EXPECT PONDING OF WATER ON LOCAL ROADWAYS. DRIVERS SHOULD SLOW DOWN AND TURN ON THEIR HEADLIGHTS IF ENCOUNTERING HEAVY RAINS. && LAT...LON 3808 8559 3800 8555 3795 8567 3805 8571 TIME...MOT...LOC 2050Z 227DEG 1KT 3802 8563 SCHOETTMER
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
526 PM EDT SAT JUN 16 2012
KYC111-211-162155-
JEFFERSON KY-SHELBY KY-
526 PM EDT SAT JUN 16 2012
...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...AND
30 TO 40 MPH WINDS...
AT 520 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
COMPLEX OF STRONG THUNDERSTORMS NEAR JEFFERSONTOWN...AND MOVING
NORTHEAST AT 15 MPH.
OCCASIONAL LIGHTNING...HEAVY RAIN WITH RAINFALL RATES OF AROUND ONE
INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE MILE...AND GUSTY
WINDS OF AROUND 30 TO 40 MPH...ARE EXPECTED WITH THIS STORM.
* THIS STORM WILL ALSO IMPACT...
JEFFERSONTOWN...
ANCHORAGE...
MIDDLETOWN...
FISHERVILLE...
L S PARK...
CONNER...
SIMPSONVILLE AND FINCHVILLE...
THIS STORM WILL AFFECT INTERSTATE 64 IN KENTUCKY BETWEEN MILE MARKERS
12 AND 29.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL IS OCCURRING. EXPECT PONDING OF WATER ON LOCAL
ROADWAYS. DRIVERS SHOULD SLOW DOWN AND TURN ON THEIR HEADLIGHTS IF
ENCOUNTERING HEAVY RAINS.
&&
LAT...LON 3816 8525 3813 8537 3815 8542 3813 8543
3811 8544 3809 8552 3824 8564 3830 8548
3829 8546 3830 8545 3830 8544
TIME...MOT...LOC 2125Z 241DEG 12KT 3819 8549
SCHOETTMERThe Louisville radar (KLVX), 65 km away, was scanning. The volume nearest the first event began at 21:38 UTC.
2 thunderstorm wind, 1 heavy rain. Local standard time, as filed.
A spotter just east of Henryville who reported damaging winds at 640 pm EDT also measured 2.8 inches of rain that fell in an 80 minute period ending at 7 pm EDT.
The local broadcast media relayed a report of an outdoor storage building in Henryville that was thrown into a neighbor's yard. At around the same time, a spotter reported a large limb down around 2 miles east of Henryville.
Local media relayed a report of an estimated 60 mph wind gust from a spotter just east of Henryville. He reported several large limbs down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2012Every state in 2012This day in weather historyWarnings in Indiana, June 2012
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: 377949, 377945, 377946.