Severe weather moved through central Indiana on August 19, 2007. The main threats were damaging thunderstorm winds and hail.
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.
Severe weather moved through central Indiana on August 19, 2007. The main threats were damaging thunderstorm winds and hail. Multiple trees and power lines were down in addition to structural damage and damage to vehicles.
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 19, 5:48 PM EST, 1 hour 31 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE INDIANAPOLIS IN 648 PM EDT SUN AUG 19 2007 .AVIATION...DISCUSSION FOR 00Z TAFS. WARM FNT REMAINS JUST N OF THE FA THIS EVE AND IS EXPECTED TO STAY THERE OR MOVE A LITTLE N. BULK OF THE PRECIP HAS BEEN OCCURING N OF THE FNT WITHIN 310K UPGLIDE AND CONDENSATION PRES DEFICITS LESS THAN 30 MB. BASES ON MODEL DATA AND RADAR TRENDS...THE MORE WIDESPREAD RAINFALL WL CONT TO REMAIN N OF THE FA UNTIL TOMORROW AFTERNOON WHEN THE REMANTS OF ERIN MOV ACRS. PIECES OF ENERGY MOVING ACRS FM ERIN WL KEEP A FEW RWS AND POSSIBLY TRWS AROUND TNGT ESP AT LAF. IN FACT...STG TRW ACRS WARREN CO AT 2247Z LOOKS LIKE IT MAY CLIP LAF IN THE 00Z-02Z TIME FRAME. OTHERWISE...VFR CIGS RULED S OF THE FNT AND LIKE THE MOS WHICH KEEPS IT THAT WAY. ALSO...DONT EXPECT FOG WITH AT LEAST A FAIRLY THICK AC DECK EXPECTED OVERNGT. && .PREV DISCUSSION... FORECAST FOCUS IS ON CHANCES FOR RAIN UNTIL MID WEEK. AT 18Z A WARM FRONT WAS ACROSS NORTHERN SECTIONS OF THE FORECAST AREA /FA/. REMNANTS OF ERIN WERE ACROSS OK. MOST TSRA ACTIVITY WAS NORTH OF THE WARM FRONT ACROSS NORTHERN IL...IN...AND OH. MODELS IN FAIR AGREEMENT. NO MODEL WAS DOING VERY WELL WITH PRECIP ACROSS NRN IN...AND ALL HAD SOME ISSUES INITIALIZING REMNANTS OF ERIN. ALSO...MODELS ALSO SUFFER SOME FEEDBACK ISSUES /PRECIP BULLSEYES FOR EXAMPLE/...MOST NOTABLY THE GFS BY 42 HOURS. WILL USE A BLEND OF MODELS TAKING OUT FEEDBACK ISSUES. BEST FRONTOGENETIC FORCING WILL REMAIN TO THE N OF THE FA TONIGHT...CLOSER TO THE FRONT. CURRENT RADAR TRENDS ARE TAKING MOISTURE ACROSS MO NE INTO NRN IL THEN E ACROSS NRN IN. THIS WILL LIKELY CONTINUE AS UPPER FLOW SUPPORTS THIS MOVEMENT. THUS HIGHEST POPS TONIGHT WILL BE ACROSS NRN PARTS OF THE FA. ISENTROPIC UPGLIDE WILL CONTINUE THROUGHOUT THE NIGHT ACROSS THE FA...SO THREAT FOR SHOWERS WILL EXIST EVERYWHERE. WILL GO LIKELY POPS ACROSS AREAS NORTH OF INDIANAPOLIS...WITH SOME CATEGORICAL POPS IN THE FAR NRN FA. CHANCE POPS LOOK BEST ELSEWHERE. HEAVY RAIN THREAT LOOKS TO BE CONFINED TO AREAS N OF THE FA CLOSER TO STRONG FRONTOGENESIS. CLOUDS AND INCREASING SURFACE DEWPOINTS WILL KEEP TEMPS NEAR MAV NUMBERS. ON MONDAY UPPER TROF /REMNANTS OF ERIN/ WILL MOVE ACROSS THE FA. PRECIPITATION EFFICIENCIES INCREASE DURING THE DAY AS AMPLE MOISTURE MOVES IN WITH THE SYSTEM. OVERALL SYNOPTIC FORCING INCREASES AS WELL WITH THE UPPER TROF. THUS FEEL LIKELY POPS LOOK BEST ACROSS MOST OF THE FA. WITH RAIN EXPECTED SEE NO REASON TO CUT MAV POPS IN THE CATEGORICAL RANGE ACROSS LAF AREA SO WILL GO CATEGORICAL THERE. TEMPERATURES WILL BE TRICKY AS ANY BREAKS IN THE CLOUDS/SHOWERS WILL LEAD TO A QUICK RISE IN TEMPS. TEMPS TODAY ARE IN THE UPPER 80S WHERE THE SUN BROKE THRU FOR A TIME. THUS THE WARM MAV CANNOT BE COMPLETELY RULED OUT. WITH THE UNCERTAINTY WILL COMPROMISE BETWEEN WARM MAV AND COOLER MET MOST AREAS. SYSTEM EXITS MONDAY NIGHT. WILL GO LIKELY POPS ERN FA AND CHANCE WRN FA AS SYSTEM PULLS OUT. ON TUESDAY NO STRONG FORCING AROUND BUT ATMOSPHERE WILL BE UNSTABLE AND SUSCEPTIBLE TO ANY WAVE IN THE FLOW ALOFT. WILL CONTINUE CHANCE POPS. UPPER RIDGE WILL BEGIN TO DOMINATE THE WEATHER BY WEDNESDAY...SO HAVE CONTINUED DRY AND HOT FORECAST FOR THEN. COLD FRONT TRIES TO WORK ACROSS FA BY THE END OF THE WEEK AND SHOULD SUCCEED BY SUNDAY AS RIDGE GETS PUSHED SOUTH. && .IND WATCHES/WARNINGS/ADVISORIES...NONE. && PUBLIC...CS AVIATION...MK
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 343 PM EDT SUN AUG 19 2007 INZ021-028>031-035>043-201945- CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY- BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION- 343 PM EDT SUN AUG 19 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN SECTIONS OF CENTRAL INDIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THUNDERSTORMS ARE POSSIBLE THROUGH THE NIGHT. HEAVY RAIN WILL BE THE PRIMARY THREAT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS ARE POSSIBLE MONDAY AND TUESDAY. SOME OF THE STORMS MAY BE STRONG ON MONDAY WITH HEAVY RAIN AND GUSTY WINDS THE PRIMARY THREATS. ADDITIONAL STORMS ARE POSSIBLE WEDNESDAY NIGHT THROUGH SATURDAY NIGHT. LIGHTNING IS A THREAT FROM ANY THUNDERSTORM. .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) INZ044>049-051>057-060>065-067>072-201945- 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- 343 PM EDT SUN AUG 19 2007 /243 PM CDT SUN AUG 19 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR MUCH OF CENTRAL INDIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THUNDERSTORMS ARE POSSIBLE THROUGH THE NIGHT. SOME STORMS MAY PRODUCE HEAVY RAIN. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THUNDERSTORMS ARE POSSIBLE ON MONDAY AND TUESDAY. SOME OF THE STORMS MAY BE STRONG ON MONDAY WITH HEAVY RAIN AND GUSTY WINDS THE PRIMARY THREATS. ADDITIONAL STORMS ARE POSSIBLE THURSDAY THROUGH SATURDAY NIGHT FOR MUCH OF THE AREA. LIGHTNING IS A THREAT FROM ANY THUNDERSTORM. HEAT INDEX VALUES MAY APPROACH 100 DEGREES DURING THE AFTERNOON ON WEDNESDAY THROUGH FRIDAY. .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)
The Indianapolis radar (KIND), 75 km away, was scanning. The volume nearest the first event began at 00:19 UTC.
12 thunderstorm wind, 8 hail. Local standard time, as filed.
Trees were reported down along State Road 231 due to damaging thunderstorm winds.
Trees and power lines were down due to damaging thunderstorm winds.
Trees were reported down near SR 47 between SR 39 and US 421.
Damaging thunderstorm winds estimated at 75 MPH moved 38 trailers at an RV dealership, destroying four. One trailer left a hole in the side of the dealership's body shop building.
Trees were reported down due to damaging thunderstorm winds.
Two trees were reported down due to damaging thunderstorm winds.
Hail estimated at one inch was reported on US 40.
Trees were reported down due to damaging thunderstorm winds.
Hail with an estimated size of one inch and winds gusting at 40 MPH were reported in Brownsburg.
Numerous trees and power lines were reported down throughout town. A trailer storage facility had the roof blown off at US 136 and CR 900 E.
Nickel to golfball size hail was reported.
A large tree limb fell onto a house and into the living room due to damaging thunderstorm winds. Another limb fell on a truck and was damaged.
Trees fell on two houses on Green Street. At one house a tree limb broke a window.
Downburst winds estimated at 75 to 80 MPH damaged numerous trees and limbs across the city. Several trees fell on power lines, homes, and on vehicles.
Eagle Creek ASOS measured a 59 MPH wind gust.
One inch hail was reported at 10th and Country Club.
Golf ball size hail and winds estimated at 40 MPH were reported in Pike Township by W 56th and Township Line Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2007Every state in 2007This day in weather historyWarnings in Indiana, August 2007
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: 48628, 48636, 48639, 48672, 48673, 48645, 48649, 48650, 48652, 48675, 48654, 48664, 48665, 48669, 48670, 48674, 48666, 48667, 48668, 48671.