Storm Summary from May 27, 2017

Overview

A warm and moist airmass moved into the region, with temperatures rising into the mid 80s and dewpoint temperatures riding to around 70. This combination fortunately allowed for storms to develop over more of the area than originally anticipated. Storms that developed over Missouri, and brought widespread 60-80 mph winds, steered south of our region because of the storms over Kentucky "stealing" that energy.

That said however, our storms did produce multiple hail reports as well as some tree damage. A Flash Flood Emergency also was declared over Taylor and Casey counties in Kentucky, where radar estimates of 4-6" of rain fell over a relatively short period of time.

Caption


Storm Prediction Center (SPC) Preliminary Storm Reports	Flooding in Campbellsville, KY (courtesy of Ronnie Dooley)	Radar Estimated Rainfall Totals

Flooding
Lightning
Storm Reports
Environment
Rainfall

Flooding

Several flash flood warnings were issued yesterday, with an emergency warning issued for Taylor and Casey counties in Kentucky. Several swift water rescues occurred with this warning. The hydrographs below show water rises on the Green River at various gauges.

Hydrographs


Green River at Dundee	Green River at Munfordville	Green River at Brownsville

Lightning:

Here's a loop of the cloud to ground strikes each hour during the event. The numbers in the upper left corner indicate the total number of positive and negative charge strikes in the image.

Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LOUISVILLE KY
411 PM EDT SUN MAY 28 2017

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

1230 AM     HEAVY RAIN       4 WNW BURKESVILLE       36.81N 85.43W
05/28/2017  M2.02 INCH       CUMBERLAND         KY   MESONET          

            MEASURED AT THE KENTUCKY MESONET STATION. 

1230 AM     HEAVY RAIN       MUNFORDVILLE            37.28N 85.90W
05/28/2017  M2.20 INCH       HART               KY   PUBLIC           

            MEASURED AT A PRIVATE WEATHER STATION. 

1230 AM     HEAVY RAIN       3 SSE CANE VALLEY       37.15N 85.29W
05/28/2017  M2.02 INCH       ADAIR              KY   MESONET          

            MEASURED AT THE KENTUCKY MESONET STATION. 

1230 AM     HEAVY RAIN       3 SW LIBERTY            37.29N 84.96W
05/28/2017  M2.93 INCH       CASEY              KY   MESONET          

            MEASURED AT THE KENTUCKY MESONET STATION. 

1230 AM     HEAVY RAIN       1 S CAMPBELLSVILLE      37.34N 85.35W
05/28/2017  M2.72 INCH       TAYLOR             KY   PUBLIC           

            MEASURED AT A PRIVATE WEATHER STATION. 

1230 AM     HEAVY RAIN       3 WSW BURKESVILLE       36.77N 85.42W
05/28/2017  M2.36 INCH       CUMBERLAND         KY   PUBLIC           

            MEASURED AT A PRIVATE WEATHER STATION. 

1230 AM     HEAVY RAIN       3 NE PIERCE             37.22N 85.59W
05/28/2017  M2.13 INCH       GREEN              KY   PUBLIC           

            MEASURED AT A PRIVATE WEATHER STATION. 

1230 AM     HEAVY RAIN       4 N BLACK GNAT          37.36N 85.45W
05/28/2017  M2.56 INCH       TAYLOR             KY   MESONET          

            MEASURED AT THE KENTUCKY MESONET STATION. 

1102 PM     FLASH FLOOD      BURKESVILLE             36.80N 85.37W
05/27/2017                   CUMBERLAND         KY   911 CALL CENTER  

            MANY REPORTS OF WATER OVER ROADWAYS ACROSS 
            THE COUNTY BUT NO ROADS CLOSED AT THIS TIME. 

1033 PM     FLASH FLOOD      ALBANY                  36.70N 85.14W
05/27/2017                   CLINTON            KY   911 CALL CENTER  

            WATER ACROSS THE ROADWAY ON MILLER ROAD. 

0928 PM     FLASH FLOOD      LIBERTY                 37.32N 84.93W
05/27/2017                   CASEY              KY   EMERGENCY MNGR   

            WATER RESCUES OCCURRED. NUMEROUS ROADS 
            CLOSED DUE TO HIGH WATER ACROSS THE COUNTY. 

0909 PM     FLASH FLOOD      CAMPBELLSVILLE          37.35N 85.35W
05/27/2017                   TAYLOR             KY   EMERGENCY MNGR   

            NUMEROUS ROADS IN THE CITY CLOSED DUE TO 
            HIGH WATER. HIGHWAY 210 CLOSED DUE TO HIGH 
            WATER . HIGHWAY 658 CLOSED DUE TO HIGH 
            WATER. 

0825 PM     FLASH FLOOD      2 S GREENSBURG          37.23N 85.50W
05/27/2017                   GREEN              KY   TRAINED SPOTTER  

            ROADS CLOSED DUE TO HIGH WATER. 

0824 PM     HAIL             BEDFORD                 38.60N 85.32W
05/27/2017  M0.50 INCH       TRIMBLE            KY   TRAINED SPOTTER  



0824 PM     TSTM WND DMG     BEDFORD                 38.60N 85.32W
05/27/2017                   TRIMBLE            KY   TRAINED SPOTTER  

            TREES REPORTED DOWN. 

0818 PM     HAIL             GLASGOW                 37.00N 85.92W
05/27/2017  M0.50 INCH       BARREN             KY   TRAINED SPOTTER  



0818 PM     HAIL             EDMONTON                36.99N 85.62W
05/27/2017  E0.50 INCH       METCALFE           KY   TRAINED SPOTTER  



0814 PM     FLASH FLOOD      CLEMENTSVILLE           37.29N 85.10W
05/27/2017                   CASEY              KY   EMERGENCY MNGR   

            HIGHWAY 70 CLOSED DUE TO MUDSLIDE. 

0805 PM     FLASH FLOOD      CAMPBELLSVILLE          37.35N 85.35W
05/27/2017                   TAYLOR             KY   EMERGENCY MNGR   

            3 WATER RESCUES GOING ON IN CAMPBELLSVILLE. 

0804 PM     TSTM WND DMG     JAMESTOWN               36.99N 85.07W
05/27/2017                   RUSSELL            KY   911 CALL CENTER  

            NUMEROUS TREE DOWN A FEW POWER LINES ALSO 
            AROUND THE MARINA. 

0747 PM     TSTM WND DMG     7 E BURKESVILLE         36.78N 85.24W
05/27/2017                   CLINTON            KY   LAW ENFORCEMENT  

            TREE REPORTED DOWN. 

0742 PM     TSTM WND DMG     BONNIEVILLE             37.38N 85.90W
05/27/2017                   HART               KY   TRAINED SPOTTER  

            TREES DOWN COUNTY WIDE. 

0739 PM     TSTM WND DMG     5 NE DOT                36.74N 86.89W
05/27/2017                   LOGAN              KY   LAW ENFORCEMENT  

            TREES REPORTED DOWN. 

0735 PM     FLASH FLOOD      CAMPBELLSVILLE          37.35N 85.35W
05/27/2017                   TAYLOR             KY   LAW ENFORCEMENT  

            NUMEROUS REPORTS OF FLASH FLOODING ACROSS 
            THE COUNTY. 

0733 PM     TSTM WND DMG     CAMPBELLSVILLE          37.35N 85.35W
05/27/2017                   TAYLOR             KY   TRAINED SPOTTER  

            TREES DOWN AND ROOF BLOWN OFF 2 MILES 
            NORTHWEST.. 

0730 PM     TSTM WND DMG     1 NE PEYTONSBURG        36.65N 85.37W
05/27/2017                   CUMBERLAND         KY   EMERGENCY MNGR   

            NUMEROUS TREES DOWN COUNTYWIDE. 

0728 PM     HAIL             CAMPBELLSVILLE          37.35N 85.35W
05/27/2017  M0.75 INCH       TAYLOR             KY   TRAINED SPOTTER  



0724 PM     TSTM WND DMG     1 NNW KNIFELY           37.25N 85.19W
05/27/2017                   ADAIR              KY   LAW ENFORCEMENT  

            2 TREES DOWN. 

0720 PM     HAIL             HARTFORD                37.45N 86.89W
05/27/2017  M0.50 INCH       OHIO               KY   TRAINED SPOTTER  



0720 PM     TSTM WND DMG     1 NW DUNDEE             37.56N 86.80W
05/27/2017                   OHIO               KY   LAW ENFORCEMENT  

            DOWNED TREES ACROSS THE COUNTY. 

0719 PM     TSTM WND DMG     1 W ELK HORN            37.32N 85.31W
05/27/2017                   TAYLOR             KY   LAW ENFORCEMENT  

            TREE REPORTED DOWN. 

0719 PM     HAIL             ELK HORN                37.32N 85.28W
05/27/2017  M1.00 INCH       TAYLOR             KY   TRAINED SPOTTER  



0714 PM     HAIL             GREENSBURG              37.26N 85.50W
05/27/2017  M1.00 INCH       GREEN              KY   TRAINED SPOTTER  



0710 PM     HAIL             2 N GLENDALE            37.63N 85.92W
05/27/2017  M0.88 INCH       HARDIN             KY   EMERGENCY MNGR   

            MULTIPLE REPORTS WITH PICTURES OF PENNY TO 
            NICKEL SIZE HAIL IN HARDIN COUNTY. 

0706 PM     HAIL             CLARKSON                37.50N 86.22W
05/27/2017  M0.75 INCH       GRAYSON            KY   TRAINED SPOTTER  



0702 PM     HAIL             ELIZABETHTOWN           37.71N 85.87W
05/27/2017  M0.50 INCH       HARDIN             KY   TRAINED SPOTTER  



0650 PM     FLASH FLOOD      DERBY                   38.03N 86.53W
05/27/2017                   PERRY              IN   EMERGENCY MNGR   

            RESIDENTS EVACUATED FROM A HOME DUE TO HIGH 
            WATER. 

0645 PM     HAIL             FLAHERTY                37.84N 86.07W
05/27/2017  M0.50 INCH       MEADE              KY   TRAINED SPOTTER  



0642 PM     HAIL             CAMPBELLSVILLE          37.35N 85.35W
05/27/2017  M1.00 INCH       TAYLOR             KY   LAW ENFORCEMENT  



0642 PM     HAIL             DYER                    37.70N 86.23W
05/27/2017  M0.50 INCH       BRECKINRIDGE       KY   TRAINED SPOTTER  



0635 PM     TSTM WND DMG     BROWNSVILLE             37.19N 86.26W
05/27/2017                   EDMONSON           KY   NEWSPAPER        

            LARGE LIMBS DOWNED IN BROWNSVILLE. 

0624 PM     HAIL             ROCKPORT                37.34N 86.99W
05/27/2017  M0.50 INCH       OHIO               KY   TRAINED SPOTTER  



0610 PM     HAIL             1 NNW CAMPBELLSVILLE    37.36N 85.36W
05/27/2017  M1.00 INCH       TAYLOR             KY   EMERGENCY MNGR   



0549 PM     HAIL             LEXINGTON               38.05N 84.46W
05/27/2017  M0.50 INCH       FAYETTE            KY   BROADCAST MEDIA  



0545 PM     HAIL             VERSAILLES              38.06N 84.73W
05/27/2017  M0.50 INCH       WOODFORD           KY   TRAINED SPOTTER  



0520 PM     HAIL             BRANCHVILLE             38.17N 86.58W
05/27/2017  M0.50 INCH       PERRY              IN   TRAINED SPOTTER  



0510 PM     HAIL             BRANCHVILLE             38.17N 86.58W
05/27/2017  M0.50 INCH       PERRY              IN   TRAINED SPOTTER  



0445 PM     HAIL             SAINT CROIX             38.24N 86.58W
05/27/2017  M0.50 INCH       PERRY              IN   TRAINED SPOTTER  



0444 PM     HAIL             1 ESE SAINT CROIX       38.23N 86.57W
05/27/2017  E1.00 INCH       PERRY              IN   LAW ENFORCEMENT  

            I-64 NEAR THE PERRY/CRAWFORD COUNTY LINE. 
            REPORTED BY STATE POLICE. 

0435 PM     HAIL             1 S ECKERTY             38.30N 86.62W
05/27/2017  E1.75 INCH       CRAWFORD           IN   TRAINED SPOTTER  



0423 PM     HAIL             WACO                    37.74N 84.15W
05/27/2017  M0.50 INCH       MADISON            KY   TRAINED SPOTTER  



0419 PM     HAIL             STANFORD                37.53N 84.66W
05/27/2017  M0.50 INCH       LINCOLN            KY   TRAINED SPOTTER  



0414 PM     HAIL             JUNCTION CITY           37.59N 84.79W
05/27/2017  M0.50 INCH       BOYLE              KY   TRAINED SPOTTER  



0402 PM     HAIL             HARRODSBURG             37.77N 84.85W
05/27/2017  E0.88 INCH       MERCER             KY   BROADCAST MEDIA  



0350 PM     HAIL             3 E TASWELL             38.34N 86.52W
05/27/2017  M1.75 INCH       CRAWFORD           IN   TRAINED SPOTTER  



0345 PM     HAIL             ENGLISH                 38.34N 86.46W
05/27/2017  M0.50 INCH       CRAWFORD           IN   TRAINED SPOTTER  



0340 PM     HAIL             3 W DANVILLE            37.65N 84.83W
05/27/2017  E1.00 INCH       BOYLE              KY   BROADCAST MEDIA  



0320 PM     HAIL             3 NNE NEWTON STEWART    38.44N 86.61W
05/27/2017  E0.75 INCH       ORANGE             IN   PUBLIC           



0300 PM     HAIL             GREENSBURG              37.26N 85.49W
05/27/2017  M0.50 INCH       GREEN              KY   FIRE DEPT/RESCUE 



1040 AM     HAIL             MORGANTOWN              37.22N 86.70W
05/27/2017  E0.88 INCH       BUTLER             KY   BROADCAST MEDIA

Environment:


Available Instability at 5 PM EDT - Strong to Extreme	Available Atmospheric Moisture Content at 6 PM EDT	Deep Layer Moisture Convergence at 7 PM EDT	Composite showing where the best environment for a large scale wind producing storm might track 7 PM EDT