Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, KY

July 10, 2021Johnson County, Kentucky

NWS Jackson, KY issued this special weather statement at Jul 10, 2021, 2:36 PM EDT for Johnson County, Kentucky. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 10, 2021, 2:36 PM EDT (18:36 UTC)
Expired
Jul 10, 2021, 3:15 PM EDT
In force
39 min
Issued by
NWS Jackson, KY

County Johnson County, KY

The radar

The Jackson,KY radar (KJKL), 59 km from the middle of the area, began a volume at 18:37 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.6 hours before the alert went out and 199 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, Cncnati-Daytn, OH at 12:00Z on 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 12:00Z on 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
866 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, KY wrote its last area forecast discussion before this special weather statement went out at Jul 10, 2:05 PM EDT, 31 minutes earlier.

Area forecast discussion, Jul 10, 2:05 PM EDT, 31 minutes before
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Hazardous weather outlook, Jul 10, 4:04 AM EDT, 10 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Jackson KY
404 AM EDT Sat Jul 10 2021

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-111115-
Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Rockcastle-
Jackson-Pulaski-Laurel-Wayne-McCreary-Whitley-Knox-Bell-Harlan-
Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee-Breathitt-Knott-
Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike-
Including the cities of Flemingsburg, Camargo, Jeffersonville,
Mount Sterling, Owingsville, Morehead, Irvine, Ravenna,
Clay City, Stanton, Frenchburg, Brodhead, Mount Vernon, McKee,
Annville, Burnside, Somerset, London, Monticello, Stearns,
Whitley City, Corbin, Williamsburg, Barbourville, Middlesboro,
Pineville, Cumberland, Harlan, Sandy Hook, West Liberty,
Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright,
Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard,
Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run,
Elkhorn City, Pikeville, and South Williamson
404 AM EDT Sat Jul 10 2021

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...Today and Tonight.

Thunderstorm chances will increase throughout the day, and linger
into the overnight. Some of these storms could be strong, and may
produce heavy rainfall and isolated flooding concerns.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Thunderstorms are possible each day, especially during the
afternoon and evening hours.

There is the potential for heavy rain and strong storms again
Sunday and Monday afternoons.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

JMW/CMF

In the hours before

Special weather statement, Jul 10, 12:11 PM EDT, 2 hours 25 minutes before
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Special weather statement, Jul 10, 1:13 PM EDT, 1 hour 23 minutes before
Special Weather Statement
National Weather Service JACKSON KY
113 PM EDT Sat Jul 10 2021

KYZ084>087-101800-
McCreary-Whitley-Knox-Bell-
113 PM EDT Sat Jul 10 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN BELL...SOUTHWESTERN
KNOX...SOUTHEASTERN MCCREARY AND WHITLEY COUNTIES...

At 112 PM EDT, a strong thunderstorm was located over Bounty, or near
Williamsburg, moving east at 25 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Williamsburg, Barbourville, Julip, Ayers, Gatliff, Emlyn, Swan Lake,
Zion Hill, Clate, Birdseye, Red Ash, Clio, Verne, Goldbug, Gausdale,
Pleasant View, King, Louden, Krupp and Bryants Store.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3661 8432 3684 8430 3686 8390 3659 8388
TIME...MOT...LOC 1712Z 266DEG 22KT 3672 8424

GREIF
Special weather statement, Jul 10, 1:45 PM EDT, 51 minutes before
Special Weather Statement
National Weather Service JACKSON KY
145 PM EDT Sat Jul 10 2021

KYZ080-085>087-116-101830-
Whitley-Clay-Knox-Bell-Laurel-
145 PM EDT Sat Jul 10 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN LAUREL...BELL...
KNOX...WHITLEY AND SOUTHERN CLAY COUNTIES...

At 145 PM EDT, a strong thunderstorm was located over Rockholds, or 8
miles northeast of Williamsburg, moving east at 20 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Williamsburg, Barbourville, Pineville, Middlesboro, Julip, Fariston,
Brightshade, Varilla, Swan Lake, Ponza, Goose Rock, Black Snake,
Gausdale, Erose, Bush, Cranes Nest, Blanche, Cubage, Rella and Dixie.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3659 8422 3660 8423 3707 8411 3713 8363
      3683 8349 3681 8351 3678 8349 3673 8350
      3670 8346 3667 8346 3667 8351 3664 8361
      3661 8367 3658 8369
TIME...MOT...LOC 1745Z 264DEG 16KT 3683 8407

GREIF
Special weather statement, Jul 10, 2:34 PM EDT, 2 minutes before
Special Weather Statement
National Weather Service JACKSON KY
234 PM EDT Sat Jul 10 2021

KYZ086>088-115>117-101915-
Clay-Knox-Perry-Bell-Harlan-Leslie-
234 PM EDT Sat Jul 10 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT HARLAN...BELL...
CENTRAL KNOX...LESLIE...CENTRAL PERRY AND SOUTHEASTERN CLAY
COUNTIES...

At 233 PM EDT, strong thunderstorms were clustered over Fourmile, or
near Pineville, moving east at 15 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Hazard, Barbourville, Harlan, Pineville, Manchester, Hyden, Loyall,
Evarts, Wallins Creek, Big Fork, Bobs Creek, Sandy Fork, Hoskinston,
Bledsoe, Brightshade, Varilla, Coldiron, Ponza, Goose Rock and Black
Snake.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3663 8392 3667 8391 3668 8388 3670 8390
      3719 8378 3723 8318 3674 8316 3670 8334
      3667 8343 3667 8351 3663 8360
TIME...MOT...LOC 1833Z 264DEG 11KT 3682 8372

GREIF
Special weather statement, Jul 10, 2:36 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service JACKSON KY
236 PM EDT Sat Jul 10 2021

KYZ107-109-110-119-120-101915-
Martin-Floyd-Pike-Johnson-Magoffin-
236 PM EDT Sat Jul 10 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT WESTERN MARTIN...
JOHNSON...NORTHERN FLOYD...NORTHWESTERN PIKE AND EASTERN MAGOFFIN
COUNTIES...

At 235 PM EDT, strong thunderstorms were clustered over Cliff, or
near Prestonsburg, moving east at 15 mph.

Winds in excess of 40 mph and pea size hail are possible with this
storm.

Locations impacted include...
Paintsville, Prestonsburg, Inez, Martin, Allen, Add, Fredville,
Oaklawn Estates, Bammer, Fitz, Davella, Oil Springs, Lancer,
Whitehouse, Meally, Prince, Collista, Orchard, West Van Lear and
Dotson.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3755 8302 3790 8298 3789 8296 3791 8296
      3794 8277 3789 8268 3788 8261 3789 8260
      3792 8260 3793 8258 3795 8258 3796 8253
      3795 8252 3757 8249
TIME...MOT...LOC 1835Z 264DEG 11KT 3769 8280

GREIF

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 10, 12:11 PM EDTSpecial Weather StatementJKLElliott34 min
Jul 10, 1:13 PM EDTSpecial Weather StatementJKLWhitley47 min
Jul 10, 1:45 PM EDTSpecial Weather StatementJKLBell, Knox, Whitley45 min
Jul 10, 2:34 PM EDTSpecial Weather StatementJKLBell, Clay, Harlan, Leslie41 min
Jul 10, 3:07 PM EDTSpecial Weather StatementJKLFloyd, Pike38 min
Jul 10, 3:08 PM EDTSevere Thunderstorm WarningJKLFloyd, Martin, Pike52 min
Jul 10, 3:13 PM EDTAreal Flood AdvisoryJKLFloyd, Magoffin, Martin, Pike3 hr
Jul 10, 3:19 PM EDTFlash Flood WarningJKLFloyd, Johnson, Martin2 hr
Jul 10, 3:30 PM EDTSpecial Weather StatementJKLLaurel60 min
Jul 10, 3:32 PM EDTSpecial Weather StatementJKLPike28 min
Jul 10, 3:33 PM EDTSpecial Weather StatementJKLEstill, Lee, Powell42 min
Jul 10, 3:45 PM EDTAreal Flood AdvisoryJKLEstill3 hr
Jul 10, 3:49 PM EDTFlash Flood WarningJKLEstill2 hr
Jul 10, 3:56 PM EDTSpecial Weather StatementJKLMorgan49 min
Jul 10, 3:58 PM EDTSpecial Weather StatementJKLMagoffin, Wolfe47 min
Jul 10, 3:59 PM EDTSpecial Weather StatementJKLPike31 min
Jul 10, 4:03 PM EDTSevere Thunderstorm WarningJKLMagoffin, Morgan42 min
Jul 10, 4:11 PM EDTAreal Flood AdvisoryJKLPike3 hr
Jul 10, 4:13 PM EDTAreal Flood AdvisoryJKLEstill, Lee, Powell, Wolfe3 hr
Jul 10, 4:18 PM EDTSpecial Weather StatementJKLLee27 min
Jul 10, 4:42 PM EDTAreal Flood AdvisoryJKLPike3 hr
Jul 10, 4:44 PM EDTAreal Flood AdvisoryJKLBreathitt, Lee, Wolfe2 hr
Jul 10, 5:09 PM EDTSpecial Weather StatementJKLPulaski36 min
Jul 10, 5:41 PM EDTSpecial Weather StatementJKLLaurel49 min
Jul 10, 6:02 PM EDTSpecial Weather StatementJKLLaurel43 min
Jul 10, 6:16 PM EDTAreal Flood AdvisoryJKLMcCreary, Pulaski105 min
Jul 10, 6:16 PM EDTAreal Flood AdvisoryJKLPike52 min
Jul 10, 6:24 PM EDTFlash Flood WarningJKLPulaski95 min
Jul 10, 6:31 PM EDTAreal Flood AdvisoryJKLMcCreary115 min
Jul 10, 6:40 PM EDTFlash Flood WarningJKLMcCreary103 min
Jul 10, 6:49 PM EDTAreal Flood AdvisoryJKLLaurel, McCreary, Whitley102 min
Jul 10, 7:14 PM EDTAreal Flood AdvisoryJKLClay3 hr
Jul 10, 7:40 PM EDTAreal Flood AdvisoryJKLKnox2 hr

Nearby

Special Weather Statements in Kentucky, 2021Every special weather statement in 2021

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.