Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, KY

August 19, 2021Whitley County, Kentucky

NWS Jackson, KY issued this special weather statement at Aug 19, 2021, 2:37 AM EDT for Whitley County, Kentucky. It was in force for 38 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: Aug 19, 2021, 2:37 AM EDT (06:37 UTC)
Expired: Aug 19, 2021, 3:15 AM EDT
In force: 38 min
Issued by: NWS Jackson, KY
Hail: 0.00 in
Wind: 30

County Whitley County, KY

The radar

The Knoxville radar (KMRX), 93 km from the middle of the area, began a volume at 06:41 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

Nashville Metro, TN (KBNA), launched 00:00Z, 6.6 hours before the alert went out and 227 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 576 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 656 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

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 Aug 19, 1:24 AM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 19, 1:24 AM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Aug 18, 4:48 PM EDT, 9 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Jackson KY
448 PM EDT Wed Aug 18 2021

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-191100-
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
448 PM EDT Wed Aug 18 2021

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...Tonight.

Thunderstorms are possible tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorms are possible at times through the period, some of
which may bring locally heavy rainfall on Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

HAL

In the hours before

Special weather statement, Aug 19, 2:37 AM EDT, 0 minutes before

Special Weather Statement
National Weather Service JACKSON KY
237 AM EDT Thu Aug 19 2021

KYZ080-084>087-190715-
McCreary KY-Whitley KY-Knox KY-Bell KY-Laurel KY-
237 AM EDT Thu Aug 19 2021

...A strong thunderstorm will impact portions of south central
Laurel, southwestern Bell, southwestern Knox, eastern McCreary and
Whitley Counties through 315 AM EDT...

At 236 AM EDT, Doppler radar was tracking a strong thunderstorm over
Bounty, or near Williamsburg, moving northeast at 30 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This strong thunderstorm will be near...
  Bon, Redbird and Krupp around 245 AM EDT.
  Williamsburg, Goldbug, Emlyn, Clio, Pleasant View and Mountain Ash
  around 250 AM EDT.
  Wofford, Suttons Mill, Yaden and Walden around 255 AM EDT.

Other locations in the path of this storm include Julip, Rockholds,
Lucky, Verne, Dixie, Faber, Nevisdale, Perkins, Louden, Gausdale,
Wilton, Carpenter, Woodbine, Barbourville, Permon, Clate, Swan Lake,
King, Indian Creek, Dishman Springs, Swanpond, Bryants Store and
Hubbs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3659 8434 3684 8459 3704 8405 3670 8372
      3659 8399
TIME...MOT...LOC 0636Z 243DEG 25KT 3671 8427

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

FISHER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 11:42 PM EDT	River Flood Advisory	JKL	Estill	5 hr
Aug 19, 5:44 AM EDT	River Flood Advisory	JKL	Estill, Powell	12 hr
Aug 19, 9:46 AM EDT	Areal Flood Advisory	JKL	Estill	119 min
Aug 19, 9:54 AM EDT	Areal Flood Advisory	JKL	Magoffin	117 min
Aug 19, 10:15 AM EDT	Areal Flood Advisory	JKL	Estill, Lee, Morgan, Powell, Wolfe	3 hr
Aug 19, 10:37 AM EDT	Flash Flood Warning	JKL	Magoffin	3 hr
Aug 19, 10:47 AM EDT	Flash Flood Warning	JKL	Wolfe	3 hr
Aug 19, 12:22 PM EDT	Areal Flood Advisory	JKL	Bath, Elliott, Menifee, Rowan	3 hr
Aug 19, 12:45 PM EDT	Areal Flood Advisory	JKL	Estill, Lee, Menifee, Powell, Wolfe	3 hr
Aug 19, 1:00 PM EDT	Areal Flood Warning	JKL	Estill	8 hr
Aug 19, 1:40 PM EDT	Areal Flood Warning	JKL	Estill, Lee, Magoffin, Powell, Wolfe	2 hr
Aug 19, 1:53 PM EDT	Areal Flood Advisory	JKL	Pike	4 hr
Aug 19, 2:34 PM EDT	Flash Flood Warning	JKL	Pike	3 hr
Aug 19, 3:14 PM EDT	River Flood Advisory	JKL	Lee	16 hr
Aug 19, 3:14 PM EDT	River Flood Advisory	JKL	Estill	21 hr
Aug 19, 5:12 PM EDT	Areal Flood Advisory	JKL	Powell, Wolfe	5 hr
Aug 19, 5:20 PM EDT	Dense Fog Advisory	JKL	Bath, Bell, Breathitt, Clay, Elliott, Estill and 27 more	17 hr
Aug 19, 5:52 PM EDT	River Flood Warning	JKL	Estill, Powell	45 hr

Nearby

Special Weather Statements in Kentucky, 2021 Every 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.