Hurricane Isaias is expected to make landfall along the U.S. northern Gulf Coast late Friday or early Saturday. A life-threatening storm surge is expected along the coast with damaging wind gusts extending well inland. Areas of heavy rainfall are forecast throughout much of the Southeast U.S. The remnants of Rachel will bring gusty winds and heavy rainfall to the Southwest U.S. this weekend. Read More >
Overview
A line of severe thunderstorms formed across Northern Indiana providing numerous reports of wind damaging and damaging wind gusts. A few reports of large hail were received (one report of 2 inch hail near Bryan, OH), but damaging wind gusts were the main the main threat. Some higher end wind gusts in excess of 75 mph were also reported along with extensive tree damage.
Photos & Video
Here are some photos from the event.
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| Tree tipped over in Columbia City, IN (Kyle Brown) |
Large trees down in Converse, IN (WeatherScoop) |
Trees down and damage to an above ground pool in Plato, IN. (GHS weather) |
Quarter-sized hail in Lagro, IN. (Andrew Chinworth) |
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| Tree damage in New Haven, IN (David Dahl) |
Tree damage in Alvordton, OH (Ben Kessler) |
Power poles knocked over in Alvordton, OH. (Ben Kessler) |
Winds likely around 70 mph tipped over a semi-truck in Lagrange, IN. (Jeni Resor) |
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| Large tree uprooted Sweetser, IN (WeatherScoop) |
Tree damage in Columbia City, IN (Amy Biggs) |
Tree damage Sweetser, IN. (WeatherScoop) |
Tree damage Sweetser, IN (WeatherScoop) |
Radar
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| Figure 1: KIWX 0.5 degree base reflectivity (left) and base velocity (right) around 2pm EDT. Note the dark orange colors (outbound velocities) just southeast of Lagrange, IN. This depicts velocities around 80-90 knots just 1500 feet above ground level. | Figure 2: KIWX 0.5 degree base reflectivity (left) and base velocity (right) around 2pm EDT. Note the cyan colors (inbound velocities) in North Machester, IN vicinity. This depicts velocities of 70 to 80 knots just 1800 feet above ground level. | Figure 3: KIWX 0.5 base reflectivity of storm near Bryan, OH. This storm went on to produce 2 inch hail near Bryan. | Figure 4: Cross section of Bryan, OH storm in Figure 3 from KIWX radar. Note the pink shadings indicating reflectivities in excess of 60 dBZ to 30000 feet. |
Storm Reports
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| Map of the compiled reports (Courtesy SPC) |
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTHERN INDIANA
424 AM EDT THU JUN 11 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0551 PM NON-TSTM WND GST 2 ENE NINE MILE 40.99N 85.19W
06/10/2020 M62 MPH ALLEN IN ASOS
.
0525 PM TSTM WND DMG GILBOA 41.02N 83.92W
06/10/2020 PUTNAM OH TRAINED SPOTTER
TREES DOWN IN THE VICINITY OF GILBOA.
0518 PM TSTM WND DMG HARROD 40.70N 83.92W
06/10/2020 ALLEN OH PUBLIC
TREES DOWN.
0515 PM TSTM WND GST 3 WNW GILBOA 41.03N 83.98W
06/10/2020 M62 MPH PUTNAM OH AWOS
.
0440 PM TSTM WND DMG WAUSEON 41.55N 84.14W
06/10/2020 FULTON OH EMERGENCY MNGR
LARGE TREE DOWN ON ROAD.
0438 PM TSTM WND DMG BLUFFTON 40.74N 85.17W
06/10/2020 WELLS IN TRAINED SPOTTER
ONE TREE DOWN ALONG WITH TREE BRANCHES ON
THE NORTH SIDE OF BLUFFTON, WIND GUSTS
ESTIMATED AT 45 TO 50 MPH.
0415 PM TSTM WND DMG NEW HAVEN 41.07N 85.03W
06/10/2020 ALLEN IN PUBLIC
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
NEW HAVEN. TREE ON A HOUSE.
0415 PM HAIL 4 E WALLEN 41.17N 85.10W
06/10/2020 M1.50 INCH ALLEN IN PUBLIC
REPORT FROM MPING: PING PONG BALL (1.50
IN.).
0412 PM TSTM WND GST NEW HAVEN 41.07N 85.02W
06/10/2020 E60 MPH ALLEN IN TRAINED SPOTTER
NUMEROUS BRANCHES DOWN.
0412 PM TSTM WND DMG 3 NW NEW HAVEN 41.10N 85.06W
06/10/2020 ALLEN IN TRAINED SPOTTER
3 FT DIAMETER TREE SNAPPED.
0412 PM TSTM WND DMG 4 N NEW HAVEN 41.13N 85.03W
06/10/2020 ALLEN IN TRAINED SPOTTER
SHINGLES TORN OFF ROOF.
0408 PM HAIL HESSEN CASSEL 40.98N 85.08W
06/10/2020 E1.25 INCH ALLEN IN PUBLIC
REPORT FROM MPING: HALF DOLLAR (1.25 IN.).
0354 PM TSTM WND DMG 2 W BRIDGEWATER CENTER 41.65N 84.67W
06/10/2020 WILLIAMS OH PUBLIC
CORRECTS TIME OF PREVIOUS TSTM WND DMG
REPORT FROM 2 W BRIDGEWATER CENTER. REPORT
FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER
POLES BROKEN.
0353 PM TSTM WND DMG 4 S LEO-CEDARVILLE 41.16N 85.02W
06/10/2020 ALLEN IN PUBLIC
REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN;
POWER POLES BROKEN.
0341 PM TSTM WND GST 2 ENE NINE MILE 40.98N 85.18W
06/10/2020 M64 MPH ALLEN IN ASOS
.
0340 PM TSTM WND DMG 3 N HESSEN CASSEL 41.02N 85.07W
06/10/2020 ALLEN IN TRAINED SPOTTER
4-5 INCH BRANCHES DOWN, MOBILE HOME SKIRTING
DAMAGED, GARDEN SHEDS BLOWN FROM ORIGINAL
LOCATIONS.
0330 PM TSTM WND DMG ALVORDTON 41.67N 84.44W
06/10/2020 WILLIAMS OH EMERGENCY MNGR
TREES DOWN.
0325 PM TSTM WND DMG PULASKI 41.51N 84.51W
06/10/2020 WILLIAMS OH FIRE DEPT/RESCUE
TREES AND LINES DOWN...BLOCKING ROAD.
0323 PM HAIL BRYAN 41.47N 84.55W
06/10/2020 M2.00 INCH WILLIAMS OH TRAINED SPOTTER
.
0320 PM TSTM WND DMG 2 W BRIDGEWATER CENTER 41.65N 84.67W
06/10/2020 WILLIAMS OH PUBLIC
REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN;
POWER POLES BROKEN.
0320 PM TSTM WND DMG HILLSDALE 41.92N 84.63W
06/10/2020 HILLSDALE MI EMERGENCY MNGR
NUMEROUS TREES AND POWER LINES DOWN ACROSS
HILLSDALE COUNTY.
0310 PM TSTM WND DMG 2 S BRYAN 41.44N 84.55W
06/10/2020 WILLIAMS OH FIRE DEPT/RESCUE
SEMI BLOWN OVER.
0308 PM TSTM WND DMG 2 SE WILLIAMS CENTER 41.41N 84.58W
06/10/2020 DEFIANCE OH LAW ENFORCEMENT
OLD BARN BLOWN DOWN.
0305 PM TSTM WND DMG FREMONT 41.73N 84.93W
06/10/2020 STEUBEN IN EMERGENCY MNGR
NUMEROUS TREES DOWN.
0300 PM TSTM WND DMG ANGOLA 41.64N 85.00W
06/10/2020 STEUBEN IN AMATEUR RADIO
TWO LARGE TREES DOWN.
0300 PM TSTM WND DMG 2 W BERLIEN 41.63N 84.92W
06/10/2020 STEUBEN IN EMERGENCY MNGR
TREE DOWN.
0258 PM HAIL 2 NNW FORT WAYNE 41.10N 85.15W
06/10/2020 M1.00 INCH ALLEN IN PUBLIC
.
0248 PM TSTM WND DMG 3 SE COLDWATER 41.91N 84.96W
06/10/2020 BRANCH MI PUBLIC
TREES DOWN BLOCKING DORRANCE RD. POWER LINES
ALSO DOWN.
0245 PM TSTM WND GST 3 ENE WALLEN 41.18N 85.10W
06/10/2020 E60 MPH ALLEN IN TRAINED SPOTTER
AT INTERSTATE 69 AND STATE ROUTE 1.
0240 PM TSTM WND DMG 3 NNE SOUTH BUTLER 42.06N 84.87W
06/10/2020 BRANCH MI EMERGENCY MNGR
SEVERAL TREES DOWN.
0235 PM TSTM WND DMG 1 NNE BLUE LAKE 41.25N 85.35W
06/10/2020 WHITLEY IN EMERGENCY MNGR
2 LARGE TREES DOWN.
0230 PM TSTM WND DMG 1 SW CHURUBUSCO 41.22N 85.33W
06/10/2020 WHITLEY IN EMERGENCY MNGR
MULTIPLE BARNS BLOWN DOWN.
0230 PM TSTM WND DMG TRI-LAKES 41.22N 85.48W
06/10/2020 WHITLEY IN EMERGENCY MNGR
LARGE TREE DOWN.
0230 PM TSTM WND DMG 2 SW WASHINGTON CENTER 41.03N 85.53W
06/10/2020 WHITLEY IN PUBLIC
TREE LIMBS DOWN.
0228 PM TSTM WND GST 2 WSW COLDWATER 41.93N 85.05W
06/10/2020 M59 MPH BRANCH MI AWOS
.
0228 PM TSTM WND DMG COLUMBIA CITY 41.16N 85.49W
06/10/2020 WHITLEY IN NWS EMPLOYEE
ESTIMATED 6 INCH DIAMETER TREE FELL AS A
RESULT OF ESTIMATED 50 TO 60 MPH WINDS. PEA
SIZED HAIL ALSO FELL.
0225 PM TSTM WND GST 1 N LAUD 41.06N 85.45W
06/10/2020 E60 MPH WHITLEY IN TRAINED SPOTTER
.
0225 PM TSTM WND GST 1 NNE PEABODY 41.10N 85.48W
06/10/2020 M58 MPH WHITLEY IN TRAINED SPOTTER
.
0224 PM TSTM WND DMG LA FONTAINE 40.67N 85.72W
06/10/2020 WABASH IN PUBLIC
TREES DOWN.
0224 PM TSTM WND GST 1 N SWEETSER 40.59N 85.77W
06/10/2020 M76 MPH GRANT IN PUBLIC
.
0222 PM TSTM WND DMG BRONSON 41.88N 85.19W
06/10/2020 BRANCH MI PUBLIC
TREES DOWN. TIME ESTIMATED BY RADAR.
0220 PM TSTM WND DMG 3 ESE BRIMFIELD 41.44N 85.34W
06/10/2020 NOBLE IN PUBLIC
NUMEROUS LARGE TREES DOWN.
0220 PM TSTM WND DMG LUTHER 41.00N 85.57W
06/10/2020 HUNTINGTON IN EMERGENCY MNGR
LARGE TREE DOWN SR 114/SR 5.
0220 PM TSTM WND DMG 1 NNE MATTESON LAKE 41.94N 85.20W
06/10/2020 BRANCH MI TRAINED SPOTTER
TREES DOWN ON ROAD.
0219 PM TSTM WND DMG 1 NW ROME CITY 41.50N 85.37W
06/10/2020 NOBLE IN EMERGENCY MNGR
POWER LINES DOWN.
0218 PM TSTM WND DMG SOUTH WHITLEY 41.08N 85.63W
06/10/2020 WHITLEY IN EMERGENCY MNGR
LARGE TREE ON ROAD.
0214 PM HAIL 3 E LAGRO 40.84N 85.67W
06/10/2020 M1.00 INCH WABASH IN PUBLIC
.
0212 PM TSTM WND DMG FAWN RIVER 41.78N 85.34W
06/10/2020 ST. JOSEPH MI TRAINED SPOTTER
NUMEROUS LARGE TREES UPROOTED IN NEARBY
WOODS AND BLOCKING ROADS, ROADS CLOSED,
STRUCTURAL BARN DAMAGE, POWER OUT.
0210 PM TSTM WND DMG 2 NE BRIGHTON 41.74N 85.29W
06/10/2020 LAGRANGE IN EMERGENCY MNGR
RELAYED REPORTS OF VEHICLES BLOWN OVER ON
TOLL ROAD AT MM 128.
0210 PM TSTM WND DMG 2 W FLINT 41.69N 85.17W
06/10/2020 STEUBEN IN EMERGENCY MNGR
MULTIPLE TREES DOWN.
0210 PM TSTM WND DMG 3 NW ORLAND 41.76N 85.21W
06/10/2020 BRANCH MI EMERGENCY MNGR
MULTIPLE TREES DOWN.
0208 PM TSTM WND DMG 2 SSE ADAMS LAKE 41.53N 85.32W
06/10/2020 LAGRANGE IN EMERGENCY MNGR
2 TREES IN ROADWAY.
0208 PM TSTM WND DMG ANDREWS 40.86N 85.60W
06/10/2020 HUNTINGTON IN EMERGENCY MNGR
WIDESPREAD TREE DAMAGE, TREES ON HOUSES,
CARS AND POWER LINES.
0208 PM TSTM WND GST CONVERSE 40.58N 85.87W
06/10/2020 M80 MPH MIAMI IN PUBLIC
12 INCH THICK TREE LIMBS ALSO DOWN. MEASURED
GUST ON ANEMOMETER.
0205 PM TSTM WND DMG NORTH MANCHESTER 41.01N 85.77W
06/10/2020 WABASH IN PUBLIC
TREE ON A HOUSE. TIME ESTIMATED BY RADAR.
0200 PM TSTM WND DMG LAGRANGE 41.64N 85.42W
06/10/2020 LAGRANGE IN PUBLIC
NUMEROUS TREES AND LIMBS DOWN.
0200 PM TSTM WND DMG 2 W PLATO 41.64N 85.37W
06/10/2020 LAGRANGE IN EMERGENCY MNGR
2 SEMIS BLOWN OVER ON US-20.
0200 PM TSTM WND DMG PLATO 41.64N 85.33W
06/10/2020 LAGRANGE IN PUBLIC
ESTIMATED 12 INCH DIAMETER TREES DOWN.
0156 PM TSTM WND DMG CONVERSE 40.58N 85.87W
06/10/2020 MIAMI IN PUBLIC
TWO LARGE TREES DOWN IN CONVERSE. ONE IN THE
STREET, THE OTHER ON A HOUSE.
0156 PM TSTM WND DMG 2 WSW KNAPP LAKE 41.33N 85.64W
06/10/2020 NOBLE IN EMERGENCY MNGR
POWER LINES DOWN.
0155 PM TSTM WND DMG 1 NNE BRIMFIELD 41.47N 85.39W
06/10/2020 NOBLE IN EMERGENCY MNGR
POWER LINES DOWN.
0155 PM HAIL 2 NE SOMERSET 40.69N 85.80W
06/10/2020 E1.00 INCH WABASH IN TRAINED SPOTTER
CORRECTS PREVIOUS HAIL REPORT FROM 2 NE
SOMERSET. CORRECTS PREVIOUS HAIL REPORT FROM
2 NE SOMERSET.
0153 PM TSTM WND DMG LIGONIER 41.47N 85.59W
06/10/2020 NOBLE IN EMERGENCY MNGR
TREE BLOCKING ROADWAY.
0152 PM TSTM WND DMG MENDON 42.01N 85.45W
06/10/2020 ST. JOSEPH MI PUBLIC
LARGES TREES DOWN ON HOUSE.
0152 PM TSTM WND DMG NORTH MANCHESTER 41.00N 85.77W
06/10/2020 WABASH IN PUBLIC
NUMEROUS LARGE TREE BRANCHES DOWN. ONE TREE
UPROOTED.
0151 PM TSTM WND DMG 1 N EDDY 41.55N 85.44W
06/10/2020 LAGRANGE IN PUBLIC
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1
N EDDY. TREE DOWN ON HOUSE AND CAR.
0150 PM HAIL AMBOY 40.60N 85.92W
06/10/2020 M1.75 INCH MIAMI IN EMERGENCY MNGR
.
0150 PM TSTM WND DMG CONVERSE 40.58N 85.86W
06/10/2020 GRANT IN EMERGENCY MNGR
CORRECTS TIME OF PREVIOUS TSTM WND DMG
REPORT FROM CONVERSE. TWO LARGE TREES
DOWNED. ONE ON HOUSE.
0150 PM TSTM WND DMG TIPPECANOE LAKE 41.33N 85.76W
06/10/2020 KOSCIUSKO IN NWS EMPLOYEE
LARGE TREE DOWN ONTO POWER LINES ON E COUNTY
ROAD 650 N ON SOUTHEAST SIDE OF LAKE
TIPPECANOE.
0147 PM TSTM WND DMG 2 ESE KNAPP LAKE 41.33N 85.58W
06/10/2020 NOBLE IN EMERGENCY MNGR
TREE IN ROADWAY.
0147 PM TSTM WND DMG SWAYZEE 40.51N 85.82W
06/10/2020 GRANT IN PUBLIC
CORRECTS TIME OF PREVIOUS TSTM WND DMG
REPORT FROM SWAYZEE. ROOF DAMAGE. A DOZEN OR
SO SHINGLES BENT/MISSING.
0145 PM TSTM WND DMG CONVERSE 40.58N 85.86W
06/10/2020 GRANT IN EMERGENCY MNGR
TWO LARGE TREES DOWNED. ONE ON HOUSE.
0142 PM TSTM WND DMG 3 NE ROANN 40.94N 85.89W
06/10/2020 WABASH IN BROADCAST MEDIA
HOG BARN DESTROYED.
0141 PM HAIL 3 NW GOSHEN 41.60N 85.88W
06/10/2020 E0.88 INCH ELKHART IN COCORAHS
.
0115 PM TSTM WND DMG GOSHEN 41.59N 85.83W
06/10/2020 ELKHART IN TRAINED SPOTTER
NUMEROUS TREES DOWN ACROSS GOSHEN.
0100 PM TSTM WND DMG 2 SE NEAD 40.69N 86.10W
06/10/2020 MIAMI IN TRAINED SPOTTER
6-8 INCH IN DIAMETER TREE FELL.
&&
$$
Environment
A favorable combination of abundant low level moisture, drying mid levels, and a good amount of shear resulted in favorable conditions for severe weather development. Images courtesy of SPC.
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| Figure 1: 40-50 kts of effective shear was out in front of storms helping to keep them going during the afternoon. | Figure 2: 850 mb and 500 mb wind crossover. Notice how the 2 layers of winds were unidirectional or both out of the same direction. This allowed for more of a straightlined wind event as opposed to an event with rotating storms. Low level (850 mb, red color) winds are very strong in this graphic at over 35 to 40 kts. | Figure 3: Precipitable water values indicate how much moisture was in the column ready to be squeezed out of the atmosphere with enough forcing. Values approaching 2 inches like this day had are in the upper edge of climatology. |
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| Figure 4: Storms had ample instability to be able to work with as valued exceeded 2500 to 3000 surface based CAPE. | Figure 5: Instability for storms to use to create downdrafts (DCAPE) totaled around or slightly above 1000 J/kg, which is usually the threshold for severe downbursts. | Figure 6: Mid level lapse rates are another way to characterize instability. These were over 7 C/km at times. While hail was a secondary hazard, the threat was there with this parameter helping to sustain the upward motion of updrafts. |
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