Alert archive / Kentucky / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 355

July 8, 201613 counties in Indiana; 107 counties in Kentucky; 8 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2016, 11:06 AM EDT for 13 counties in Indiana; 107 counties in Kentucky; 8 counties in Ohio. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jul 8, 2016, 11:06 AM EDT (15:06 UTC)
Expired
Jul 8, 2016, 6:00 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 128 counties

Clark County, IN, Crawford County, IN, Dearborn County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Ohio County, IN, Perry County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hancock County, KY, Hardin County, KY, Harlan County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Hopkins County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Lincoln County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, Mason County, KY, McCreary County, KY, McLean County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Adams County, OH, Brown County, OH, Clermont County, OH, Gallia County, OH, Hamilton County, OH, Jackson County, OH, Lawrence County, OH, Scioto County, OH

The radar

The Louisville radar (KLVX), 46 km from the middle of the area, began a volume at 15:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 8, 11:13 AM EDTSevere Thunderstorm WarningILNOhio, Switzerland47 min
Jul 8, 11:27 AM EDTSevere Thunderstorm WarningLMKAnderson, Franklin, Scott, Shelby, Woodford33 min
Jul 8, 11:28 AM EDTSevere Thunderstorm WarningLMKJefferson32 min
Jul 8, 11:48 AM EDTSevere Thunderstorm WarningILNDearborn, Ohio, Switzerland26 min
Jul 8, 12:18 PM EDTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette27 min
Jul 8, 12:29 PM EDTSevere Thunderstorm WarningJKLBath, Fleming, Menifee, Montgomery, Morgan, Powell and 1 more31 min
Jul 8, 12:35 PM EDTSevere Thunderstorm WarningILNBrown, Clermont, Hamilton25 min
Jul 8, 1:01 PM EDTSevere Thunderstorm WarningJKLBath, Elliott, Johnson, Magoffin, Menifee, Morgan and 1 more44 min
Jul 8, 1:19 PM EDTSevere Thunderstorm WarningJKLBreathitt, Floyd, Knott, Magoffin, Morgan, Wolfe41 min
Jul 8, 1:27 PM EDTSevere Thunderstorm WarningILNLewis33 min
Jul 8, 1:34 PM EDTSevere Thunderstorm WarningRLXGreenup41 min
Jul 8, 1:54 PM EDTSevere Thunderstorm WarningLMKAnderson, Mercer, Nelson, Washington36 min
Jul 8, 2:16 PM EDTSevere Thunderstorm WarningRLXGallia, Lawrence44 min
Jul 8, 2:20 PM EDTFlash Flood WarningLMKGarrard, Jessamine, Madison3 hr
Jul 8, 2:41 PM EDTSevere Thunderstorm WarningLMKBoyle, Garrard, Jessamine, Lincoln, Mercer34 min
Jul 8, 2:44 PM EDTSevere Thunderstorm WarningJKLEstill, Lee, Menifee, Powell, Wolfe46 min
Jul 8, 2:48 PM EDTFlash Flood WarningLMKAnderson, Boyle, Garrard, Jessamine, Mercer, Washington and 1 more3 hr
Jul 8, 2:48 PM EDTFlash Flood WarningLMKAnderson, Boyle, Garrard, Jessamine, Madison, Mercer and 2 more3 hr
Jul 8, 3:25 PM EDTSevere Thunderstorm WarningLMKClinton, Cumberland, Monroe20 min
Jul 8, 3:37 PM EDTFlash Flood WarningJKLEstill, Jackson, Rockcastle3 hr
Jul 8, 3:39 PM EDTFlash Flood WarningLMKGarrard, Lincoln, Madison3 hr
Jul 8, 4:03 PM EDTFlash Flood WarningJKLBreathitt3 hr
Jul 8, 4:24 PM EDTFlash Flood WarningJKLPulaski3 hr
Jul 8, 4:31 PM EDTFlash Flood WarningJKLClay, Leslie, Owsley, Perry5 hr
Jul 8, 4:33 PM EDTFlash Flood WarningJKLLaurel, Pulaski, Rockcastle3 hr
Jul 8, 4:38 PM EDTFlash Flood WarningJKLClay, Knox, Laurel, Leslie3 hr
Jul 8, 4:40 PM EDTSevere Thunderstorm WarningJKLBell, Clay, Harlan, Knox, Leslie35 min
Jul 8, 4:42 PM EDTFlash Flood WarningJKLKnott, Leslie, Letcher, Perry3 hr
Jul 8, 4:59 PM EDTSevere Thunderstorm WarningJKLBell, Harlan, Knox, Whitley31 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 3.1 hours before the alert went out and 176 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2067 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2067 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1056 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

302 
WWUS20 KWNS 081504
SEL5  
SPC WW 081504
INZ000-KYZ000-OHZ000-082200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 355
NWS STORM PREDICTION CENTER NORMAN OK
1105 AM EDT FRI JUL 8 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
  SOUTHEAST INDIANA
  KENTUCKY
  SOUTHERN OHIO

* EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 1105 AM UNTIL
  600 PM EDT.

* PRIMARY THREATS INCLUDE...
  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

SUMMARY...THUNDERSTORM CLUSTERS ARE EXPECTED TO INCREASE IN AREAL
COVERAGE AND INTENSITY TODAY AS SURFACE TEMPERATURES WARM THROUGH
MID AFTERNOON.  LOCALLY DAMAGING WINDS AND MARGINALLY SEVERE HAIL
ARE THE PRIMARY THREATS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 105
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH
SOUTHEAST OF BOWLING GREEN KENTUCKY TO 65 MILES NORTH NORTHEAST
OF LEXINGTON KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 354...

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27035.


...DARROW

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 10:08 AM EDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 13 more67 min
Jul 8, 6:06 PM EDTMesoscale DiscussionSPCBrown, Clark, Crawford, Daviess, Dubois, Floyd and 18 more84 min
Jul 8, 1:01 PM EDTMesoscale DiscussionSPCBell, Breathitt, Clay, Floyd, Harlan, Johnson and 10 more59 min
Jul 8, 2:59 PM EDTMesoscale DiscussionSPCBallard, Calloway, Carlisle, Fulton, Graves, Hickman and 2 more2 hr
Jul 8, 3:26 PM EDTSevere Thunderstorm WatchSPCFulton, Hickman5 hr
Jul 8, 3:49 PM EDTMesoscale DiscussionSPCAdair, Bell, Breathitt, Casey, Clark, Clay and 32 more56 min
Jul 8, 5:42 PM EDTMesoscale DiscussionSPCCarlisle, Fulton, Graves, Hickman63 min

Nearby

Severe Thunderstorm Watches in Kentucky, 2016Severe Thunderstorm Watches in Indiana, 2016Severe Thunderstorm Watches in Ohio, 2016Every severe thunderstorm watch in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.