A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >
Overview
Scattered thunderstorms developed across south central Lower Michigan and extreme northwest Ohio during the late afternoon of August 6th. These storms produced isolated wind damage. Numerous showers and thunderstorms then developed across the remainder of the region during the afternoon and evening hours. These storms produced isolated large hail and isolated wind damage. An NWS storm survey team also concluded an EF-1 tornado occurred in Kosciusko county. In addition to the isolated severe weather, localized flooding was reported.
Tornadoes:
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Tornado - Warsaw, IN KOSCIUSKO
Track Map  
Downloadable KMZ File |
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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 |
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Photos & Video:
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| Tornado damage near the intersection of Patterson Rd. and Normany Dr. in Warsaw, IN. (NWS Northern Indiana) |
Tornado damage near the intersection of Brookview Dr. and Pam St. in Warsaw, IN. (NWS Northern Indiana) |
This tree was toppled by a severe storm near County Road J, between 10 and 11 in Fulton County, OH. (Ben Kessler) |
This shelf cloud was observed west of Elida, OH. (Benjamin Rife) |
Radar:
The images below show base reflectivity on the left, and storm relative velocity on the right.
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| Warsaw Tornado Loop | 8:27 PM EDT: The tornado is believed to have touched down at this time. The small, red, cross north-northeast of Warsaw indicates the approximate starting location of the tornado. | 8:30 PM EDT: The strongest rotation, indicated by the red (outbound) colors touching the green (inbound) colors, is now located south of Little Chapman Lake. | 8:33 PM EDT: The tornado is believed to have ended at 8:34 PM EDT. Weak rotation is still evident south of Little Chapman Lake. |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1220 AM EDT TUE AUG 7 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1030 PM HEAVY RAIN BROOKSTON 40.60N 86.87W
08/06/2018 M2.45 INCH WHITE IN TRAINED SPOTTER
0952 PM TSTM WND DMG 1 NE WATERFORD MILLS 41.55N 85.82W
08/06/2018 ELKHART IN BROADCAST MEDIA
TREE SPLIT AND FELL.
0905 PM TSTM WND DMG COLUMBIA CITY 41.16N 85.49W
08/06/2018 WHITLEY IN EMERGENCY MNGR
LARGE TREE FELL ON A HOUSE AND TOOK DOWN
POWER LINES. TIME ESTIMATED FROM RADAR.
0904 PM HEAVY RAIN 1 N ROSELAND 41.73N 86.25W
08/06/2018 M2.26 INCH ST. JOSEPH IN BROADCAST MEDIA
FELL IN LESS THAN 1 HR AND A HALF.
0900 PM TSTM WND DMG 3 S ALVARADO 41.54N 84.84W
08/06/2018 STEUBEN IN EMERGENCY MNGR
POWER LINES DOWN.
0840 PM TSTM WND DMG 2 SSE RIDINGER LAKE 41.23N 85.64W
08/06/2018 WHITLEY IN EMERGENCY MNGR
SEVERAL DOWNED TREES NEAR DENISTON NATURE
PRESERVE. TIME ESTIMATED FROM RADAR.
0835 PM TSTM WND DMG ORLAND 41.73N 85.17W
08/06/2018 STEUBEN IN EMERGENCY MNGR
SEVERAL TREE LIMBS DOWN.
0814 PM TSTM WND GST 2 SW SOUTHWEST 41.52N 85.97W
08/06/2018 M58 MPH ELKHART IN TRAINED SPOTTER
MEDIUM SIZED LIMB DOWN BLOCKING HALF OF SR
119 AS WELL.
0746 PM TSTM WND DMG 1 W ELIDA 40.79N 84.22W
08/06/2018 ALLEN OH BROADCAST MEDIA
THREE INCH TREE LIMBS DOWN.
0703 PM TSTM WND DMG 1 NNW GEORGETOWN 41.74N 86.24W
08/06/2018 ST. JOSEPH IN TRAINED SPOTTER
PENNY SIZED HAIL AND ESTIMATED WIND GUSTS OF
40 TO 50 MPH.
0656 PM NON-TSTM WND GST SOUTH BEND INTERNATIONA 41.71N 86.32W
08/06/2018 M60 MPH ST. JOSEPH IN ASOS
ASOS STATION SBN, SOUTH BEND INTERNATIONAL
AP.
0655 PM HEAVY RAIN 3 SSE COLON 41.93N 85.30W
08/06/2018 M2.44 INCH ST. JOSEPH MI COCORAHS
RAIN FELL IN 5 HOURS.
0622 PM TSTM WND DMG OTTOKEE 41.60N 84.13W
08/06/2018 FULTON OH TRAINED SPOTTER
LARGE LIMB DOWN.
0602 PM TSTM WND DMG 1 S COLON 41.94N 85.33W
08/06/2018 ST. JOSEPH MI PUBLIC
TWO LARGE TREES TIPPED OVER. TIME ESTIMATED
BY RADAR.
0524 PM TSTM WND DMG 1 NNW SWANTON 41.60N 83.90W
08/06/2018 FULTON OH TRAINED SPOTTER
POWER LINE DOWN. TIME ESTIMATED FROM RADAR.
0504 PM HAIL 2 WNW WINAMEG 41.64N 84.10W
08/06/2018 M1.00 INCH FULTON OH TRAINED SPOTTER
0500 PM TSTM WND DMG 1 S WINAMEG 41.60N 84.06W
08/06/2018 FULTON OH TRAINED SPOTTER
TREE DOWN. TIME ESTIMATED BY RADAR.
0433 PM TSTM WND GST 2 SW FAYETTE 41.66N 84.36W
08/06/2018 E60 MPH FULTON OH TRAINED SPOTTER
0432 PM TSTM WND DMG FAYETTE 41.68N 84.33W
08/06/2018 FULTON OH EMERGENCY MNGR
TREES AND POWER LINES DOWN IN FAYETTE. TIME
ESTIMATED FROM RADAR.
0430 PM TSTM WND DMG 1 NNE FAYETTE 41.68N 84.32W
08/06/2018 FULTON OH EMERGENCY MNGR
TREE LIMBS DOWN. TIME ESTIMATED BY RADAR.
0430 PM TSTM WND DMG 1 N FAYETTE 41.68N 84.33W
08/06/2018 FULTON OH EMERGENCY MNGR
DAMAGE TO SHIPPING CONTAINERS AND TRUCKS.
TIME ESTIMATED BY RADAR.
0430 PM TSTM WND DMG FAYETTE 41.68N 84.32W
08/06/2018 FULTON OH EMERGENCY MNGR
TREE LIMBS DOWN. TIME ESTIMATED BY RADAR.
Public Information Statement
National Weather Service Northern Indiana
1134 PM EDT Mon Aug 6 2018
...WIND REPORTS...
Location Speed Time/Date
South Bend International Ap 60 MPH 0656 PM 08/06
2 SW Southwest 58 MPH 0814 PM 08/06
Goshen Municipal Airport 40 MPH 0759 PM 08/06
Defiance Memorial Airport 37 MPH 0657 PM 08/06
Fort Wayne International Ap 36 MPH 1008 PM 08/06
Fulton County Airport 35 MPH 0815 PM 08/06
Fulton Cnty Ap 35 MPH 1025 PM 08/06
1 W Michigan City 34 MPH 0623 PM 08/06
1 WSW Antwerp 34 MPH 0640 PM 08/06
Bridgman Buoy 34 MPH 0740 AM 08/06
Plymouth 32 MPH 0739 PM 08/06
Warsaw Municipal Airport 32 MPH 0835 PM 08/06
Kalida 32 MPH 1039 PM 08/06
1 NE Tedrow 31 MPH 0756 PM 08/06
Tri-lakes 31 MPH 0902 PM 08/06
Logansport/cass Cnty Ap 31 MPH 1035 PM 08/06
Saint Joseph 30 MPH 0740 AM 08/06
2 SW Warsaw 30 MPH 0835 PM 08/06
Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.
Rain Reports
Public Information Statement National Weather Service Northern Indiana 1028 PM EDT Mon Aug 6 2018 ...RAINFALL REPORTS FROM AUGUST 6TH... Location Amount Time/Date Lat/Lon ...Indiana... ...Allen County... 4 N New Haven 1.13 in 1015 PM 08/06 41.13N/85.03W ...Elkhart County... 1 WNW Jimtown 1.31 in 1014 PM 08/06 41.64N/86.04W ...Lagrange County... 1 ENE Lagrange 2.40 in 1010 PM 08/06 41.65N/85.39W ...St. Joseph County... 1 NW South Bend 2.40 in 1003 PM 08/06 41.69N/86.29W 1 N Roseland 2.26 in 0904 PM 08/06 41.73N/86.25W South Bend International Ap 1.94 in 0754 PM 08/06 41.71N/86.32W 2 ESE Mishawaka 1.08 in 0953 PM 08/06 41.65N/86.13W ...Starke County... 3 N Brems 1.27 in 1000 PM 08/06 41.39N/86.71W ...Steuben County... 1 SE Crooked Lake 1.60 in 1003 PM 08/06 41.66N/85.02W 2 W Silver Lake 1.15 in 0915 PM 08/06 41.63N/85.11W Angola 1.03 in 1025 PM 08/06 41.64N/85.00W ...White County... Monticello 2.56 in 1003 PM 08/06 40.74N/86.77W 1 WNW Indiana Beach 1.78 in 1005 PM 08/06 40.80N/86.79W ...Michigan... ...Cass County... 2 NW Granger 1.35 in 1006 PM 08/06 41.77N/86.17W ...Hillsdale County... Litchfield 1.04 in 1003 PM 08/06 42.05N/84.75W ...St. Joseph County... 3 SSE Colon 2.44 in 0655 PM 08/06 41.93N/85.30W ...Ohio... ...Fulton County... 1 NE Tedrow 1.65 in 1006 PM 08/06 41.62N/84.19W Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers
Environment
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| Figure 1: SFC Map valid 00Z 08/07/18 | Figure 2: 0-3km Max Theta-e difference (C, fill)/100 mb MLCAPE (red, j/kg) and 0-3km shear vector (kt) valid 00Z 08/07/18 | Figure 3: 100 mb MLCAPE (J/kg, contour), MLCIN (J/kg, shaded) and effective bulk shear (kt) valid 00Z 08/07/18 | Figure 4: SFC Moisture Convergence (blue, contour)/Mixing Ratio (green, contour) valid 00Z 08/07/18/ |
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