Overview
An area of low pressure moved north of central Indiana while the area remained in tropical air. A single, long tracking supercell thunderstorm moved northeast through Hendricks, Boone, Hamilton, Tipton and Howard counties, the evening of August 15, producing six tornadoes. Two other thunderstorms produced separate tornadoes, one in Avon and one northwest of Lafayette. |
Tornadoes: (For the interactive map, choose a tornado from the drop-down map or zooml into the map to view. Summaries of each tornado are below the map. A text summary of all tornadoes is available.)
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Tornado - Near Clayton
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Tornado - Near Battle Ground
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Tornado - Near Brownsburg
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Tornado - Near Avon
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Tornado - Hendricks/Boone Co. Line
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Tornado - Near Whitestown
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Tornado - Near Sheridan
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Tornado - Near Greentown
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
Photos & Video:
Header
Near Brownsburg (Used with Permission from J. Nield) |
Near Boone/Hamilton Co. Line (Used with Permission from J. Nield) |
Tipton County (Used with Permission from J. Nield) |
Radar:
Additional Images: A loop of radar images for every 10 minutes is available.
Radar Image at 6:33 PM EDT | Storm Relative Velocity Image at 6:33 PM EDT | Correlation Coefficient Image at 6:33 PM EDT | Radar Image at 7:24 PM EDT |
Storm Relative Velocity Image at 7:24 PM EDT | Rotation Tracks (1 of 3) | Rotation Tracks (2 of 3) | Rotation Tracks (3 of 3) |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE INDIANAPOLIS IN 0540 PM FUNNEL CLOUD 2 S CLAYTON 39.66N 86.52W 08/15/2016 HENDRICKS IN STATE POLICE 0549 PM FUNNEL CLOUD 2 SE AVON 39.74N 86.36W 08/15/2016 HENDRICKS IN COUNTY OFFICIAL OBSERVED NEAR 200 EAST AND US 36 MOVING NORTH. BELIEVED TO NOT BE REACHING THE GROUND. 0554 PM TSTM WND DMG 2 NW AVON 39.78N 86.41W 08/15/2016 HENDRICKS IN AMATEUR RADIO MULTIPLE REPORTS OF WIND DAMAGE IN THE AREA OF COUNTY ROAD 150 NORTH AND COUNTY ROAD 600 EAST. TIME APPROX AND BASED ON RADAR. 0555 PM FUNNEL CLOUD 2 E DANVILLE 39.76N 86.48W 08/15/2016 HENDRICKS IN LAW ENFORCEMENT 0600 PM TSTM WND DMG 1 NNE BROWNSBURG 39.85N 86.39W 08/15/2016 HENDRICKS IN AMATEUR RADIO TREE LIMBS UP TO ABOUT 1.5 INCHE DOWN. TRAFFIC LIGHT DOWN. PICNIC TABLES OVERTURNED. TIME APPROX AND BASED ON RADAR. 0600 PM TSTM WND DMG 3 NW BROWNSBURG 39.87N 86.43W 08/15/2016 HENDRICKS IN AMATEUR RADIO TREE LIMBS 6 TO 8 INCHES IN DIAMETER BLOWN DOWN. TIME APPROX AND BASED ON RADAR. 0600 PM TORNADO 2 S BROWNSBURG 39.81N 86.39W 08/15/2016 HENDRICKS IN EMERGENCY MNGR TORNADO NEAR COUNTY ROAD 100 NORTH AND STATE ROAD 267 NEAR BROWNSBURG 0600 PM FUNNEL CLOUD 3 W BROWNSBURG 39.84N 86.45W 08/15/2016 HENDRICKS IN AMATEUR RADIO LOCATION ESTIMATED BASED ON RADAR. 0600 PM TSTM WND DMG 1 NW BROWNSBURG 39.85N 86.41W 08/15/2016 HENDRICKS IN AMATEUR RADIO THREE FOOT DIAMETER LIVE TREE UPROOTED IN THE AREA OF WARREN LANE AND HAMMONS DRIVE. 0608 PM TSTM WND DMG 2 W BROWNSBURG 39.84N 86.43W 08/15/2016 HENDRICKS IN NWS EMPLOYEE TREES AND TREE LIMBS DOWN. ONE TREE IS ON ROADWAY. 0608 PM TORNADO 2 NW BROWNSBURG 39.86N 86.42W 08/15/2016 HENDRICKS IN AMATEUR RADIO AMATEUR RADIO RELAYED THE REPORT FROM LAW ENFORCEMENT. 0610 PM TSTM WND DMG 1 NW BROWNSBURG 39.85N 86.41W 08/15/2016 HENDRICKS IN AMATEUR RADIO STORM DEBRIS WEST OF THE BROWNSBURG LOWES...WHICH IS LOCATED ON NORTHFIELD DRIVE 1 MILE WEST OF STATE ROAD 267. 0615 PM TSTM WND DMG 4 NNW BROWNSBURG 39.90N 86.42W 08/15/2016 HENDRICKS IN PUBLIC SEVERAL LARGE TREES DOWN ALONG NORTH COUNTY ROAD 650 EAST. BEAN FIELD FLATTENED. 0616 PM TORNADO AVON 39.76N 86.38W 08/15/2016 HENDRICKS IN AMATEUR RADIO MULTIPLE REPORTS IN THIS AREA OF TORNADO IN PROGRESS. 0620 PM FUNNEL CLOUD 2 N AVON 39.79N 86.38W 08/15/2016 HENDRICKS IN AMATEUR RADIO MULTIPLE REPORTS RECEIVED IN THIS AREA. 0620 PM TSTM WND DMG 3 SSE WHITESTOWN 39.96N 86.32W 08/15/2016 BOONE IN AMATEUR RADIO STORM DAMAGE. TIME APPROX AND BASED ON RADAR. 0622 PM TSTM WND DMG 3 SSE WHITESTOWN 39.96N 86.32W 08/15/2016 BOONE IN TRAINED SPOTTER TREE LIMBS UP TO 6 INCHES IN DIAMETER BLOWN DOWN IN VICINITY OF 700 EAST AND 550 SOUTH. TIME APPROX AND BASED ON RADAR. 0624 PM TORNADO 1 SW WHITESTOWN 39.99N 86.36W 08/15/2016 BOONE IN AMATEUR RADIO IN AREA OF WALKER FARMS EDITION. TIME APPROXIMATE. 0624 PM TSTM WND DMG 1 SW WHITESTOWN 39.99N 86.36W 08/15/2016 BOONE IN AMATEUR RADIO SIGNIFICANT DEBRIS AND STRUCTURAL DAMAGE IN AREA OF COUNTY ROAD 400 SOUTH AND 800 EAST. 0624 PM TSTM WND DMG 2 SE WHITESTOWN 39.98N 86.32W 08/15/2016 BOONE IN AMATEUR RADIO ROAD CLOSED BY FALLEN TREE. POWER OUT IN AREA. TIME APPROX AND BASED ON RADAR. 0625 PM FUNNEL CLOUD BROWNSBURG 39.84N 86.39W 08/15/2016 HENDRICKS IN TRAINED SPOTTER 267 AND TINDEN 0625 PM TSTM WND GST BROWNSBURG 39.84N 86.39W 08/15/2016 E100 MPH HENDRICKS IN EMERGENCY MNGR DHS RELAYED REPORT FROM FIRE MARSHALL OF STRONG ROTATION AND DEBRIS IN THE AIR AT STATE ROAD 136 AND STATE ROAD 267 THAT LASTED ABOUT 1 MINUTE MOVING NORTH. WINDS ESTIMATED 90 TO 100 MPH. 0628 PM WALL CLOUD 2 N AVON 39.79N 86.38W 08/15/2016 HENDRICKS IN AMATEUR RADIO 0628 PM TORNADO 4 W BATTLE GROUND 40.51N 86.91W 08/15/2016 TIPPECANOE IN EMERGENCY MNGR EXTREMELY WEAK TORNADO CAUSED MINOR TREE AND CROP DAMAGE. 0629 PM FUNNEL CLOUD 4 W ZIONSVILLE 39.95N 86.35W 08/15/2016 BOONE IN AMATEUR RADIO RELAYED BY AMATEUR RADIO FROM ZIONSVILLE FIRE STATION 93. LOCATION IS OF THE FIRE STATION. EXACT LOCATION OF FUNNEL UNKNOWN. 0642 PM TSTM WND DMG 2 SE BROWNSBURG 39.82N 86.37W 08/15/2016 HENDRICKS IN AMATEUR RADIO CONSIDERABLE DEBRIS 0649 PM TSTM WND DMG 3 SSE WHITESTOWN 39.96N 86.32W 08/15/2016 BOONE IN TRAINED SPOTTER MANY TREE LIMBS DOWN AND AT LEAST ONE TREE AT 700 EAST AND 550 SOUTH 0800 PM TSTM WND DMG 13 E KOKOMO 40.48N 85.89W 08/15/2016 HOWARD IN TRAINED SPOTTER BARN AND CROP DAMAGE NEAR 1350N AND 100E. VIDEO OF TORNADO TOUCHING DOWN. TIME IS APPROXIMATE AND MAY NEED TO BE ADJUSTED
Environment
Low pressure moving toward the Great Lakes brought a warm front north into central Indiana. Tropical air was across the area, with high levels of moisture. When some instability moved into the area, these ingredients worked together to produce low-topped supercell thunderstorms.
Figure 1: Surface Map and Radar | Figure 2: Sea level pressure, surface temperature and dewpoint at 6 PM EDT | Figure 3: Mixed Layer CAPE at 6 PM EDT |
Figure 4: LCL and 0-1km SRH at 6 PM EDT |
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