Alert archive / Kentucky / Tornado Watches in 2014

Tornado Watch 445

July 27, 201471 counties in Kentucky; 31 counties in Tennessee; 9 counties in Virginia

The Storm Prediction Center issued this tornado watch at Jul 27, 2014, 12:00 PM CDT for 71 counties in Kentucky; 31 counties in Tennessee; 9 counties in Virginia. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued
Jul 27, 2014, 12:00 PM CDT (17:00 UTC)
Expired
Jul 27, 2014, 11:15 PM CDT
In force
11 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 111 counties

Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Bourbon County, KY, Boyle County, KY, Breathitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Garrard County, KY, Green County, KY, Harlan County, KY, Harrison County, KY, Hart County, KY, Jackson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski 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, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Anderson County, TN, Blount County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Cumberland County, TN, Fentress County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jackson County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, Macon County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Roane County, TN, Scott County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA

The radar

The Jackson,KY radar (KJKL), 109 km from the middle of the area, began a volume at 17:03 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
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 27, 12:02 PM CDTSevere Thunderstorm WarningLMKGreen, Hart33 min
Jul 27, 12:04 PM CDTSevere Thunderstorm WarningJKLBreathitt, Knott, Lee, Magoffin, Owsley, Perry41 min
Jul 27, 12:14 PM CDTSevere Thunderstorm WarningJKLBath, Menifee, Montgomery46 min
Jul 27, 12:24 PM CDTSevere Thunderstorm WarningJKLClay, Jackson, Laurel, Rockcastle51 min
Jul 27, 12:29 PM CDTSevere Thunderstorm WarningLMKAdair, Green, Russell31 min
Jul 27, 1:02 PM CDTTornado WarningJKLClay, Jackson, Laurel28 min
Jul 27, 1:05 PM CDTSevere Thunderstorm WarningJKLMagoffin, Menifee, Morgan, Wolfe25 min
Jul 27, 1:07 PM CDTSevere Thunderstorm WarningLMKAdair, Russell23 min
Jul 27, 1:08 PM CDTSevere Thunderstorm WarningJKLKnott, Letcher, Perry52 min
Jul 27, 1:14 PM CDTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne46 min
Jul 27, 1:24 PM CDTFlash Flood WarningJKLJackson, Laurel, Rockcastle4 hr
Jul 27, 1:25 PM CDTTornado WarningLMKRussell19 min
Jul 27, 1:28 PM CDTTornado WarningJKLWayne32 min
Jul 27, 1:37 PM CDTTornado WarningJKLClay, Jackson, Laurel, Rockcastle38 min
Jul 27, 1:44 PM CDTSevere Thunderstorm WarningMRXRussell, Scott, Wise, City of Norton46 min
Jul 27, 1:49 PM CDTSevere Thunderstorm WarningRLXDickenson25 min
Jul 27, 1:56 PM CDTTornado WarningJKLMcCreary, Wayne49 min
Jul 27, 1:59 PM CDTFlash Flood WarningJKLWayne4 hr
Jul 27, 2:11 PM CDTTornado WarningJKLClay, Jackson, Leslie, Perry34 min
Jul 27, 2:23 PM CDTTornado WarningMRXCampbell, Scott37 min
Jul 27, 2:24 PM CDTSevere Thunderstorm WarningLMKCasey, Russell21 min
Jul 27, 2:26 PM CDTTornado WarningJKLMcCreary, Whitley31 min
Jul 27, 2:29 PM CDTSevere Thunderstorm WarningJKLPulaski46 min
Jul 27, 2:39 PM CDTTornado WarningJKLClay, Leslie51 min
Jul 27, 2:55 PM CDTSevere Thunderstorm WarningJKLClay, Jackson, Laurel, Owsley50 min
Jul 27, 2:57 PM CDTTornado WarningMRXCampbell, Union33 min
Jul 27, 3:03 PM CDTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne42 min
Jul 27, 3:05 PM CDTTornado WarningJKLClay, Jackson25 min
Jul 27, 3:11 PM CDTSevere Thunderstorm WarningJKLHarlan, Leslie, Letcher49 min
Jul 27, 3:15 PM CDTTornado WarningJKLHarlan, Leslie45 min
Jul 27, 3:19 PM CDTFlash Flood WarningJKLClay4 hr
Jul 27, 3:21 PM CDTSevere Thunderstorm WarningLMKAdair, Cumberland, Metcalfe29 min
Jul 27, 3:25 PM CDTTornado WarningJKLMcCreary, Pulaski, Wayne35 min
Jul 27, 3:30 PM CDTTornado WarningJKLClay, Leslie, Perry45 min
Jul 27, 3:36 PM CDTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne, Whitley39 min
Jul 27, 3:38 PM CDTTornado WarningMRXLee, Scott, Wise52 min
Jul 27, 3:41 PM CDTSevere Thunderstorm WarningLMKBarren, Cumberland, Metcalfe, Monroe29 min
Jul 27, 3:46 PM CDTSevere Thunderstorm WarningLMKRussell19 min
Jul 27, 3:52 PM CDTTornado WarningJKLMcCreary, Whitley38 min
Jul 27, 3:53 PM CDTSevere Thunderstorm WarningLMKClinton, Cumberland, Russell32 min
Jul 27, 3:56 PM CDTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne64 min
Jul 27, 4:05 PM CDTFlash Flood WarningJKLMcCreary, Pulaski, Wayne, Whitley6 hr
Jul 27, 4:10 PM CDTTornado WarningJKLMcCreary, Pulaski, Wayne35 min
Jul 27, 4:11 PM CDTTornado WarningMRXCampbell, Claiborne, Scott49 min
Jul 27, 4:12 PM CDTSevere Thunderstorm WarningJKLHarlan, Leslie, Letcher, Perry48 min
Jul 27, 4:25 PM CDTTornado WarningMRXGreene, Hawkins, Sullivan, Washington50 min
Jul 27, 4:27 PM CDTSevere Thunderstorm WarningJKLBell, Whitley41 min
Jul 27, 4:33 PM CDTSevere Thunderstorm WarningOHXPickett27 min
Jul 27, 4:40 PM CDTTornado WarningMRXScott50 min
Jul 27, 4:47 PM CDTSevere Thunderstorm WarningOHXClay, Overton, Pickett28 min
Jul 27, 4:50 PM CDTSevere Thunderstorm WarningMRXSullivan55 min
Jul 27, 4:56 PM CDTTornado WarningMRXCampbell, Claiborne, Grainger, Union49 min
Jul 27, 5:03 PM CDTTornado WarningMRXCarter, Johnson, Sullivan, Unicoi, Washington57 min
Jul 27, 5:12 PM CDTSevere Thunderstorm WarningOHXClay, Fentress, Overton, Pickett33 min
Jul 27, 5:26 PM CDTTornado WarningMRXAnderson, Campbell, Scott49 min
Jul 27, 5:32 PM CDTTornado WarningOHXFentress28 min
Jul 27, 5:39 PM CDTTornado WarningMRXCocke, Grainger, Hamblen, Jefferson51 min
Jul 27, 5:39 PM CDTTornado WarningMRXCarter, Johnson, Sullivan51 min
Jul 27, 5:42 PM CDTSevere Thunderstorm WarningOHXFentress33 min
Jul 27, 5:51 PM CDTTornado WarningMRXAnderson, Loudon, Morgan, Roane, Scott54 min
Jul 27, 6:07 PM CDTTornado WarningMRXAnderson, Campbell, Grainger, Jefferson, Knox, Union53 min
Jul 27, 6:09 PM CDTTornado WarningMRXCocke, Greene, Hamblen, Jefferson51 min
Jul 27, 6:12 PM CDTSevere Thunderstorm WarningMRXCarter, Johnson, Sullivan33 min
Jul 27, 6:23 PM CDTSevere Thunderstorm WarningLMKNicholas22 min
Jul 27, 6:24 PM CDTSevere Thunderstorm WarningJKLFleming, Rowan51 min
Jul 27, 6:32 PM CDTSevere Thunderstorm WarningMRXBlount, Cocke, Jefferson, Knox, Sevier58 min
Jul 27, 6:39 PM CDTTornado WarningMRXAnderson, Knox, Loudon, Morgan, Roane51 min
Jul 27, 6:52 PM CDTTornado WarningMRXBlount, Knox, Sevier23 min
Jul 27, 7:11 PM CDTTornado WarningMRXBlount, Knox, Sevier64 min
Jul 27, 7:25 PM CDTSevere Thunderstorm WarningLMKLogan, Simpson30 min
Jul 27, 7:37 PM CDTSevere Thunderstorm WarningLMKAdair, Clinton, Cumberland, Metcalfe, Russell28 min
Jul 27, 7:53 PM CDTSevere Thunderstorm WarningMRXAnderson, Blount, Knox, Sevier52 min
Jul 27, 7:55 PM CDTTornado WarningLMKClinton, Cumberland, Russell30 min
Jul 27, 8:18 PM CDTSevere Thunderstorm WarningJKLBell, Knox, Laurel, McCreary, Pulaski, Whitley57 min
Jul 27, 8:38 PM CDTSevere Thunderstorm WarningMRXBlount, Cocke, Sevier38 min
Jul 27, 8:39 PM CDTSevere Thunderstorm WarningOHXMacon, Smith, Sumner, Trousdale36 min
Jul 27, 9:06 PM CDTSevere Thunderstorm WarningMRXAnderson, Campbell, Claiborne, Grainger, Hancock, Union54 min
Jul 27, 9:12 PM CDTSevere Thunderstorm WarningJKLBell, Whitley18 min
Jul 27, 9:23 PM CDTSevere Thunderstorm WarningOHXJackson, Putnam37 min
Jul 27, 9:32 PM CDTSevere Thunderstorm WarningMRXAnderson, Campbell, Scott43 min
Jul 27, 9:49 PM CDTFlash Flood WarningJKLWhitley6 hr
Jul 27, 9:53 PM CDTSevere Thunderstorm WarningOHXFentress21 min
Jul 27, 9:55 PM CDTSevere Thunderstorm WarningMRXCampbell, Claiborne, Grainger, Hamblen, Hancock, Hawkins and 1 more50 min
Jul 27, 9:59 PM CDTSevere Thunderstorm WarningMRXCarter, Greene, Hawkins, Sullivan, Unicoi, Washington46 min
Jul 27, 10:13 PM CDTSevere Thunderstorm WarningMRXAnderson, Campbell, Jefferson, Knox, Loudon, Morgan and 3 more47 min
Jul 27, 10:14 PM CDTSevere Thunderstorm WarningMRXCocke, Grainger, Greene, Hamblen, Hawkins, Jefferson and 2 more61 min
Jul 27, 10:27 PM CDTSevere Thunderstorm WarningMRXCarter, Greene, Unicoi, Washington33 min
Jul 27, 10:35 PM CDTSevere Thunderstorm WarningOHXCannon, Cumberland, Van Buren, Warren, White40 min
Jul 27, 10:58 PM CDTSevere Thunderstorm WarningMRXBledsoe, Loudon, McMinn, Meigs, Rhea, Roane47 min
Jul 27, 10:59 PM CDTSevere Thunderstorm WarningMRXBlount, Cocke, Hamblen, Jefferson, Knox, Loudon and 1 more46 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, 5.0 hours before the alert went out and 229 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 2014-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1964 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 2014-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.193958Sfc1 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
1964 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
768 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.7
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

836 
WWUS20 KWNS 271657
SEL5  
SPC WW 271657
KYZ000-TNZ000-VAZ000-280000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 445
NWS STORM PREDICTION CENTER NORMAN OK
100 PM EDT SUN JUL 27 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  CENTRAL AND EASTERN KENTUCKY
  EAST TENNESSEE
  EXTREME SOUTHWEST VIRGINIA

* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 100 PM UNTIL
  800 PM EDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
    TO 2.5 INCHES IN DIAMETER POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTH SOUTHWEST OF
LOUISVILLE KENTUCKY TO 40 MILES NORTHEAST OF BRISTOL TENNESSEE. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

&&

DISCUSSION...INTENSE THUNDERSTORMS ARE EXPECTED TO PERSIST ACROSS
THE WATCH AREA THROUGH THE AFTERNOON...IN VICINITY OF A REMNANT
OUTFLOW BOUNDARY.  INCREASING INSTABILITY AND FAVORABLE SHEAR
PROFILES WILL PROMOTE THE RISK OF SUPERCELLS CAPABLE OF VERY LARGE
HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 29030.


...HART

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 8:11 PM CDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 38 more64 min
Jul 27, 3:34 AM CDTMesoscale DiscussionSPCBrown, Clark, Clay, Crawford, Daviess, Dubois and 20 more116 min
Jul 27, 10:19 AM CDTMesoscale DiscussionSPCClark, Crawford, Dubois, Floyd, Harrison, Martin and 5 more116 min
Jul 27, 12:39 PM CDTSevere Thunderstorm WatchSPCAdams, Allen, Blackford, Cass, DeKalb, Elkhart and 18 more6 hr
Jul 27, 12:44 PM CDTTornado WatchSPCDearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more9 hr
Jul 27, 1:39 PM CDTMesoscale DiscussionSPCBartholomew, Boone, Brown, Clay, Clinton, Fountain and 23 more66 min
Jul 27, 3:55 PM CDTMesoscale DiscussionSPCAdams, Allen, Blackford, DeKalb, Elkhart, Grant and 9 more65 min
Jul 26, 8:41 PM CDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Bourbon, Boyle and 50 more3 hr
Jul 26, 10:29 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bourbon, Boyle and 54 more61 min
Jul 27, 2:14 PM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Bath, Bell, Bourbon and 53 more2 hr
Jul 27, 6:28 PM CDTMesoscale DiscussionSPCAdair, Allen, Anderson, Barren, Bath, Bell and 56 more92 min
Jul 27, 9:08 AM CDTMesoscale DiscussionSPCBeaufort, Bertie, Bladen, Camden, Chowan, Craven and 28 more67 min
Jul 27, 3:49 PM CDTMesoscale DiscussionSPCAlexander, Alleghany, Ashe, Avery, Burke, Caldwell and 13 more116 min
Jul 27, 5:32 PM CDTTornado WatchSPCAlexander, Alleghany, Ashe, Avery, Buncombe, Burke and 27 more6 hr
Jul 27, 5:52 PM CDTSevere Thunderstorm WatchSPCClarke, Frederick, Shenandoah, Warren, City of Winchester7 hr

Nearby

Tornado Watches in Kentucky, 2014Tornado Watches in Tennessee, 2014Tornado Watches in Virginia, 2014Every tornado watch in 2014

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.