Severe Weather April 3, 2018

Tornadoes and Wind Damage:

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Tornado - Hanging Rock, KY Grayson County Date April 3, 2018 Time (Local) 6:50 pm CDT EF Rating EF-1 Est. Peak Winds 105-110 mph Path Length 0.5 miles Max Width 100 yards Injuries/Deaths None Summary: The tornado touched down near several large metal outbuildings destroying two and heavily damaging two others. Insulation from the largest building was spattered on to south and east facing walls and vehicles on the east side of the complex. Metal roofing material was lofted into nearby trees and spread up to a quarter of a mile to the east. Beyond this initial touchdown area, only minor roof damage and tree damage - both uprooted trees and snapped trunks- occurred before the tornado lifted 1/2 mile to the east on Childress Road.  Track Map Downloadable KMZ File

Stone chimney collapsed. Barn destroyed. Newer barn destroyed. Nearby cattle trailer blown over and rolled 100 yards. Tree uprooted.

Tornado - Near Danville, KY Boyle County Date April 3, 2018 Time (Local) 9:34 to 9:35 pm EDT EF Rating EF-1 Est. Peak Winds 90-95 mph Path Length 0.5 miles Max Width 100 yards Injuries/Deaths None Summary: A small tornado touched down from a supercell thunderstorm on top of a tall hill along Highway 1822 and quickly destroyed one large barn used to store hay, severely damaging another medium sized barn, and destroyed fencing. The tornado did some damage to a grain silo along with some tree damage. An antique horse sled was picked up and moved about 10 feet.  The tornado briefly lifted in a valley before striking a residence on the east side of Highway 1822 and lifting the roof off a family residence. Insulation from the roof was thrown eastward and also rotated back and covered the back of the house.  Further east on Webster Rd, another one story family residence sustained significant roof, gutter, and siding damage. The owners hoop barn was pushed in violently. There were pine trees snapped.  The NWS would like to thank emergency management director Mike Wilder as well as Garrard County ARES director Jim Boyd for their assistance.  Track Map Downloadable KMZ File

Residence roof blown off. Barn destroyed. Barn damage. Residence roof damage.

Straight Line Wind Damage - Sonora, KY Hardin County Date April 3, 2018 Time (Local) 8:19 - 8:23 PM EDT EF Rating N/A Est. Peak Winds 75-80 mph Path Length 3.5 miles Max Width 500 yards Injuries/Deaths 1 Injury Summary: Winds were determined to be straight line and 75-80 mph west of Sonora, KY. Numerous barns were the primary targets from a bow echo. There were multiple barns damaged along HWY 84 along with several outbuildings as well as uprooted and snapped trees. One house sustained siding and roof damage. The debris field was scattered all along HWY 84 from west to east with some of the damage traveling up to half a mile downwind. Approximately 2 miles west of Sonora a man traveling along HWY 84 driving west towards the bow echo had the wind stop his car. Debris from the barns struck his car so violently that he was pushed off the road. He sustained minor injuries. Damage Swath Downloadable KMZ File

Barn damage near Sonora. Silo damage near Sonora. Tree uprooted. Wood driven into the side of a barn.

Straight Line Wind Damage - Hodgenville, KY Larue County Date April 3, 2018 Time (Local) 8:29 - 8:35  PM EDT EF Rating N/A Est. Peak Winds 80-90 mph Path Length 4.5 miles Max Width 500 yards Injuries/Deaths None Summary: Two miles SW on Hodgenville on Old Sonora Road a large 36x30 foot well built metal barn sustained significant structural damage when the barn broke free from the foundation. Portions of the trusses and 6x6 poles were found 100 yards to the east. Several large pieces of metal roofing and siding were blown eastward up to 1/2 mile and several splintered sections of the roof were impaled in the ground nearby. There was sporadic wind damage eastward from this point and then a concentrated area of damage at Larue County Middle School. Wind gusts lifed a section of the cafeteria roof and threw it about 25 feet downwind to the east. About 100 yards further east from the school, a small storage shed was pushed into the dugout dislodging several concrete blocks. Winds around the school area were estimated to be around 65 mph. Northeast of Hodgenville in Ovsen Heights, a concentrated area of  wind brought down several power poles and trees knocking down a few outbuildings and back deck areas. Winds were estimated to be 65 to 70 mph at this location.  Damage Swath Downloadable KMZ File

Barn damage southwest of Hodgenville, KY. Winds 85-90 mph. Barn damage near Hodgenville.  Destroyed outbuilding east of Hodgenville. Large tree uprooted.

Straight Line Wind Damage -               4N Leitchfield, KY Grayson County Date April 3, 2018 Time (Local) 6:53 PM CDT EF Rating N/A Est. Peak Winds 75-85 mph Path Length 0.5 miles Max Width 0.5 miles Injuries/Deaths None Summary: Downburst winds gusted to as high as 85 mph in a one-half mile by one-half mile swath of winds centered on Kentucky Highway 259 4.2 miles north of Leitchfield, KY. The winds destroyed a small barn, peeled metal roof panels from two other buildings, and overturned an RV. The winds also uprooted and snapped the trunks of several trees, and debris blowing into power lines helped snap four utility poles.  Damage Swath Downloadable KMZ File

Barn damage north of Leitchfield. Barn destroyed north of Leitchfield.

Straight Line Wind Damage - Bee Spring, KY Edmonson County Date April 3, 2018 Time (Local) 8:09 PM EDT EF Rating N/A Est. Peak Winds 90-95 mph Path Length 0.25 miles Max Width 1.5 miles Injuries/Deaths None Summary: A 1.5 mile wide swath of winds gusting to around 95 mph created tornado-like damage along Kentucky Highway 259 in Edmonson County. The winds, extending 3/4 of a mile north and south of Bee Spring, destroyed or heavily damaged several small outbuildings, tore part of the roof off of one home, uprooted and snapped the trunks of numerous trees, and snapped around a dozen power poles. Several other homes sustained roof damage, and wind-driven hail shredded vinyl siding on a number of buildings.  Damage Swath Downloadable KMZ File

Garage heavily damaged.  Garage damage. Destroyed outbuilding.

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

Hail:

Hail

Hail damage to a church in Bee Spring, KY	Caption	Caption	Caption

Photos:

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Radar and Rainfall:

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24 Hour Rainfall Ending 7 AM April 4, 2018	Caption	Caption	Caption

Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LOUISVILLE KY
823 PM EDT WED APR 4 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1058 PM     TSTM WND DMG     1 NE HAYWOOD            36.96N 85.95W
04/03/2018                   BARREN             KY   EMERGENCY MNGR   

            LARGE TREE FELL ON HOUSE CAUSING MAJOR 
            DAMAGE. 

1030 PM     TSTM WND GST     2 E PROVIDENCE          36.67N 86.61W
04/03/2018  M54 MPH          SIMPSON            KY   MESONET          

            MESONET STATION SWZR. 

1025 PM     TSTM WND DMG     FRANKLIN                36.72N 86.58W
04/03/2018                   SIMPSON            KY   EMERGENCY MNGR   

            A FEW TREES DOWN. 

1025 PM     TSTM WND DMG     1 N BYBEE               37.74N 84.12W
04/03/2018                   MADISON            KY   911 CALL CENTER  

            TREES DOWNED ON POWER LINES ON DROWNING 
            CREEK ROAD. TIME ESTIMATED FROM RADAR. 

1020 PM     TSTM WND GST     1 SSW WACO              37.72N 84.15W
04/03/2018  M49 MPH          MADISON            KY   MESONET          

            MESONET STATION ELST. 

1003 PM     TSTM WND DMG     2 NE KINGS MOUNTAIN     37.39N 84.67W
04/03/2018                   LINCOLN            KY   911 CALL CENTER  

            TREE DOWN ON KY 501. 

1003 PM     TSTM WND DMG     1 ENE PREACHERSVILLE    37.54N 84.53W
04/03/2018                   GARRARD            KY   911 CALL CENTER  

            TREE DOWN ON CRAB ORCHARD ROAD. 

0942 PM     TSTM WND GST     6 W LEXINGTON           38.04N 84.61W
04/03/2018  M56 MPH          FAYETTE            KY   ASOS             

            MEASURED A BLUE GRASS AIRPORT. 

0940 PM     TSTM WND DMG     2 NW ELLISBURG          37.48N 84.96W
04/03/2018                   CASEY              KY   911 CALL CENTER  

            TREE DOWN ON SR 243. 

0938 PM     HAIL             2 S DANVILLE            37.61N 84.77W
04/03/2018  M1.00 INCH       BOYLE              KY   PUBLIC           

            CORRECTS TIME OF PREVIOUS HAIL REPORT FROM 2 
            S DANVILLE. 

0935 PM     TSTM WND GST     2 NE PARKSVILLE         37.62N 84.87W
04/03/2018  M59 MPH          BOYLE              KY   MESONET          

            REPORTED AT BOYLE COUNTY. 

0925 PM     TSTM WND GST     3 NE HARTFORD           37.48N 86.85W
04/03/2018  M49 MPH          OHIO               KY   MESONET          

            REPORTED AT OHIO COUNTY. 

0920 PM     HAIL             SADIEVILLE              38.39N 84.54W
04/03/2018  M0.88 INCH       SCOTT              KY   AMATEUR RADIO    



0915 PM     HAIL             2 ESE HOBSON            37.41N 85.34W
04/03/2018  M1.75 INCH       TAYLOR             KY   EMERGENCY MNGR   

            SPOTTER REPORT RELAYED VIA EM. 

0909 PM     HAIL             3 SE ALLENDALE          37.33N 85.54W
04/03/2018  M1.75 INCH       GREEN              KY   EMERGENCY MNGR   

            REPORTED AT SUMMERSVILLE, KY. 

0908 PM     TSTM WND DMG     BRADFORDSVILLE          37.50N 85.14W
04/03/2018                   MARION             KY   LAW ENFORCEMENT  

            2 POWER POLES DOWNED IN BRADFORDSVILLE. TIME 
            ESTIMATED FROM RADAR. 

0907 PM     HAIL             4 N BLACK GNAT          37.36N 85.46W
04/03/2018  E1.00 INCH       TAYLOR             KY   EMERGENCY MNGR   



0901 PM     TSTM WND GST     3 SE ALLENDALE          37.33N 85.54W
04/03/2018  M70 MPH          GREEN              KY   PUBLIC           

            REPORTED AT SUMMERSVILLE, KY. 

0855 PM     TSTM WND DMG     LORETTO                 37.64N 85.40W
04/03/2018                   MARION             KY   LAW ENFORCEMENT  

            1 DOWNED POWER POLE. TIME ESTIMATED FROM 
            RADAR. 

0850 PM     TSTM WND DMG     1 S EASTVIEW            37.57N 86.05W
04/03/2018                   HARDIN             KY   PUBLIC           

            STRUCTURAL DAMAGE REPORTED AT HWY 62 , 
            EASTVIEW, KY. 

0847 PM     TSTM WND DMG     SONORA                  37.52N 85.89W
04/03/2018                   HARDIN             KY   AMATEUR RADIO    

            POWER LINES DOWN AND STRUCTURAL DAMAGE 
            REPORTED NEAR SENORA KY. 

0841 PM     TSTM WND DMG     HOWARDSTOWN             37.57N 85.59W
04/03/2018                   NELSON             KY   911 CALL CENTER  

            TREES REPORTED DOWN IN THE AREA INCLUDING ON 
            HOWARDSTOWN ROAD AND STILES ROAD. 

0840 PM     TSTM WND GST     2 N BUFFALO             37.55N 85.70W
04/03/2018  M66 MPH          LARUE              KY   MESONET          

            REPORTED AT LARUE COUNTY KY. 

0840 PM     HAIL             BONNIEVILLE             37.38N 85.90W
04/03/2018  M1.75 INCH       HART               KY   TRAINED SPOTTER  

            RELAYED A REPORT OF GOLF-BALL SIZED HAIL IN 
            BONNIEVILLE. 

0839 PM     HAIL             2 NW GLEANINGS          37.57N 85.55W
04/03/2018  E1.75 INCH       NELSON             KY   PUBLIC           



0835 PM     TSTM WND DMG     1 E GLENDALE            37.60N 85.91W
04/03/2018                   HARDIN             KY   AMATEUR RADIO    

            POWER-LINES DOWN AT THE CORNER OF MAIN ST 
            AND GLENDALE. 

0834 PM     TSTM WND DMG     2 ENE HODGENVILLE       37.58N 85.71W
04/03/2018                   LARUE              KY   NWS EMPLOYEE     

            STRUCTURAL DAMAGE EAST OF HODGENVILLE. 
            ROOFING MATERIAL AND INSULATION IN ROAD. 

0833 PM     TSTM WND DMG     HODGENVILLE             37.57N 85.73W
04/03/2018                   LARUE              KY   NWS EMPLOYEE     

            TREE ACROSS HIGHWAY 210 IN HODGENVILLE. 

0830 PM     TSTM WND DMG     3 NE PEONIA             37.44N 86.17W
04/03/2018                   GRAYSON            KY   AMATEUR RADIO    

            DOUBLE WIDE TRAILER BLOWN ACROSS ROAD 
            REPORTED AT ROCK CREEK ROAD, GRAYSON COUNTY, 
            KY. 

0829 PM     TSTM WND DMG     3 WSW HODGENVILLE       37.55N 85.78W
04/03/2018                   LARUE              KY   NWS STORM SURVEY 

            A NATIONAL WEATHER SERVICE STORM SURVEY 
            CONFIRMED STRAIGHT LINE WIND DAMAGE NEAR 
            HODGENVILLE, KY. PEAK WINDS WERE ESTIMATED 
            TO BE 80-90 MPH. MULTIPLE BARNS SUSTAINED 
            SIGNIFICANT DAMAGE WITH ROOFS BLOWN OFF AND 
            BLOWN DOWNWIND UP TO HALF A MILE. THE LARUE 
            COUNTY MIDDLE SCHOOL HAD A SECTION OF THE 
            CAFETERIA ROOF LIFTED OFF. SEVERAL POWER 
            POLES AND TREES WERE KNOCKED DOWN AND 
            DAMAGED DECKS AND OUTBUILDINGS. 

0823 PM     TSTM WND DMG     2 SE GLENDALE           37.58N 85.89W
04/03/2018                   HARDIN             KY   AMATEUR RADIO    

            WORKSHOP LEVELED, FARM MACHINERY DAMAGED. 
            REPORTED AT GILEAD CHURCH ROAD, KY. 

0820 PM     FUNNEL CLOUD     4 SSW WAX               37.30N 86.15W
04/03/2018                   EDMONSON           KY   TRAINED SPOTTER  

            SPOTTER IN MUNFORDVILLE SEES ROTATING WALL 
            CLOUD WITH SMALL FUNNEL TO HIS WEST 
            NORTHWEST. PLACED LOCATION APPROX WITH CELL. 

0820 PM     TSTM WND DMG     1 NNE SONORA            37.54N 85.88W
04/03/2018                   HARDIN             KY   AMATEUR RADIO    

            2 STORY BUILDING LEVELED/ DEBRIS IN ROAD AND 
            TREES. REPORTED AT OLD SENORA ROAD, KY. 

0819 PM     TSTM WND DMG     3 WNW SONORA            37.54N 85.94W
04/03/2018                   HARDIN             KY   BROADCAST MEDIA  

            *** 1 INJ *** 
            A TRUCK, WITH A MALE DRIVER, WAS BLOWN OFF 
            OF THE 2300 BLOCK OF SONORA HARDIN SPRINGS 
            ROAD AND INTO A BARN. THE DRIVER WAS TAKEN 
            TO HARDIN MEMORIAL HOSPITAL WITH MINOR 
            INJURIES. DETAILED LOCATION WAS PROVIDED BY 
            COUNTY EM. TIME WAS GATHERED FROM RADAR. 

0800 PM     TSTM WND DMG     BEE SPRING              37.28N 86.28W
04/03/2018                   EDMONSON           KY   TRAINED SPOTTER  

            WINDOWS BLOWN OUT OF A HOUSE, ANTENNA BLOWN 
            OVER. 

0800 PM     TSTM WND DMG     1 NW BROWNSVILLE        37.20N 86.27W
04/03/2018                   EDMONSON           KY   FIRE DEPT/RESCUE 

            CABLE LINES DOWN REPORTED AT BROWNSVILLE, 
            KY. 

0759 PM     HAIL             VINE GROVE              37.81N 85.98W
04/03/2018  M1.75 INCH       HARDIN             KY   AMATEUR RADIO    

            REPORTED AT VINE GROVE, KY. 

0757 PM     TSTM WND DMG     LEITCHFIELD             37.48N 86.29W
04/03/2018                   GRAYSON            KY   PUBLIC           

            BARN DESTROYED, TREES DOWN REPORTED AT 
            LEITCHFIELD, KY. 

0753 PM     TSTM WND DMG     4 N LEITCHFIELD         37.54N 86.29W
04/03/2018                   GRAYSON            KY   NWS STORM SURVEY 

            A NWS DAMAGE SURVEY FOUND DOWNBURST WINDS 
            GUSTED AS HIGH AS 85 MPH IN A ONE HALF BY 
            ONE HALF MILE SWATH CENTERED ON KY HWY 259 
            NORTH OF LEITCHFIELD. THE WINDS DAMAGED 
            MULTIPLE STRUCTURES, UPROOTED OR SNAPPED THE 
            TRUNKS OF SEVERAL TREES, AND DEBRIS BLOWING 
            INTO POWER LINES HELPED SNAP FOUR UTILITY 
            POLES. 

0752 PM     TORNADO          4 NW LEITCHFIELD        37.52N 86.34W
04/03/2018                   GRAYSON            KY   NWS STORM SURVEY 

            A NWS STORM SURVEY CONFIRMED AN EF1 TORNADO 
            TOUCHED DOWN APPROXIMATELY 3.5 MILES 
            NORTHWEST OF LEITCHFIELD, KY. THE TORNADO 
            DAMAGED OR DESTROYED MULTIPLE LARGE METAL 
            OUTBUILDINGS. AFTER THE INITIAL TOUCHDOWN, 
            MINOR ROOF DAMAGE WAS NOTED ALONG THE PATH 
            AS WELL AS SNAPPED AND UPROOTED TREES. MAX 
            PATH WIDTH WAS 100 YARDS. PATH LENGTH WAS 
            HALF A MILE. 

0752 PM     HAIL             2 S VINE GROVE          37.79N 85.98W
04/03/2018  M1.00 INCH       HARDIN             KY   NWS EMPLOYEE     



0750 PM     TSTM WND DMG     ELIZABETH               38.13N 85.97W
04/03/2018                   HARRISON           IN   PUBLIC           

            SHED DESTROYED WITH PERSON INSIDE, THOUGH 
            NOT INJURED. GLIDER WAS TAKEN OFF PORCH. 

0747 PM     TSTM WND DMG     3.5 W LEITCHFIELD       37.53N 86.34W
04/03/2018                   GRAYSON            KY   AMATEUR RADIO    

            BARN LEVELED, MULTIPLE TREES DOWN REPORTED 
            AT 3500 BLOCK LILAC RD, GRAYSON COUNTY, KY. 

0725 PM     TSTM WND DMG     GARFIELD                37.78N 86.35W
04/03/2018                   BRECKINRIDGE       KY   PUBLIC           

            ROOF REMOVED FROM BARN REPORTED AT GARFIELD, 
            KY. 

0720 PM     TSTM WND GST     2 ESE HARDINSBURG       37.77N 86.43W
04/03/2018  M62 MPH          BRECKINRIDGE       KY   MESONET          

            REPORTED AT BRECKENRIDGE COUNTY KY. 

0710 PM     TSTM WND GST     3 NE HARTFORD           37.48N 86.85W
04/03/2018  M69 MPH          OHIO               KY   MESONET          

            REPORTED AT OHIO COUNTY KY. 

0612 PM     TSTM WND DMG     3 WSW BERRY             38.49N 84.44W
04/03/2018                   HARRISON           KY   EMERGENCY MNGR   

            ROOF OFF BARN REPORTED AT CASEY MILL RD, 
            HARRISON COUNTY. 

0503 PM     NON-TSTM WND GST 2 WSW FRANKFORT         38.18N 84.90W
04/03/2018  M51 MPH          FRANKLIN           KY   ASOS             

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 2 
            WSW FRANKFORT. FRANKFORT AIRPORT ASOS. 

0454 PM     NON-TSTM WND GST 4 NW OKOLONA            38.17N 85.74W
04/03/2018  M52 MPH          JEFFERSON          KY   ASOS             

            CORRECTS PREVIOUS TSTM WND GST REPORT FROM 4 
            NW OKOLONA. LOUISVILLE INTERNATIONAL METAR. 

0433 PM     TSTM WND GST     1 ENE MADISON           38.76N 85.37W
04/03/2018  E60 MPH          JEFFERSON          IN   BROADCAST MEDIA  

            TIME ESTIMATED BY RADAR. 

Environment

Figure 1: April 3, 3 PM EDT MSL Pressure Map	Figure 2: April 3, 3 PM EDT Surface Based CAPE	Figure 3: April 3, 3 PM EDT Effective Shear

Figure 4: April 3, 3 PM EDT 0-1 km SRH	Figure 5: April 3, 7 PM EDT Downdraft CAPE	Figure 6: April 3, 7 PM EDT Sig Tor (Fixed)