Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, KY

July 17, 2021Pulaski County, Rockcastle County, Kentucky

NWS Jackson, KY issued this special weather statement at Jul 17, 2021, 7:33 PM EDT for Pulaski County, Rockcastle County, Kentucky. It was in force for 42 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 17, 2021, 7:33 PM EDT (23:33 UTC)
Expired
Jul 17, 2021, 8:15 PM EDT
In force
42 min
Issued by
NWS Jackson, KY

Counties Pulaski County, KY, Rockcastle County, KY

The radar

The Jackson,KY radar (KJKL), 124 km from the middle of the area, began a volume at 23:35 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 12:00Z, 11.6 hours before the alert went out and 212 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 2021-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 466 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 2021-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
466 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
675 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 17, 4:40 PM EDT, 2 hours 53 minutes earlier.

Area forecast discussion, Jul 17, 4:40 PM EDT, 2 hours 53 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 17, 3:27 PM EDT, 4 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Jackson KY
327 PM EDT Sat Jul 17 2021

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-182230-
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
327 PM EDT Sat Jul 17 2021

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...Tonight.

Scattered thunderstorms are expected late this afternoon into this
evening. Some of these storms will produce torrential downpours,
possibly leading to isolated flooding.

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

There is a possibility of thunderstorms near and south of the
Mountain Parkway on Sunday. Locally heavy rainfall may result in
isolated instances of flooding.

There is a small potential for thunderstorms Monday, Tuesday, and
Friday this upcoming week.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to forward any reports of flooding
through Sunday.

CMF/HAS

In the hours before

Special weather statement, Jul 17, 5:42 PM EDT, 1 hour 51 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Jul 17, 7:33 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service JACKSON KY
733 PM EDT Sat Jul 17 2021

KYZ068-079-080-180015-
Rockcastle-Laurel-Pulaski-
733 PM EDT Sat Jul 17 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN LAUREL...
CENTRAL PULASKI AND SOUTHERN ROCKCASTLE COUNTIES...

At 733 PM EDT, strong thunderstorms were clustered over Valley Oak,
or 11 miles southwest of Mount Vernon, moving east at 15 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Somerset, Mount Vernon, Science Hill, Cains Store, Donaro, Bandy,
Woodstock, Spiro, Wabp, Hansford, Dabney, Willailla, Hogue, Hazel
Patch, Pine Hill, Magnum, Camp Wildcat, Sand Hill, Dudley Station and
Billows.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3712 8490 3730 8464 3739 8421 3712 8415
      3706 8491
TIME...MOT...LOC 2333Z 260DEG 15KT 3723 8446

GREIF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:19 PM EDTSpecial Weather StatementJKLWayne41 min
Jul 17, 5:42 PM EDTSpecial Weather StatementJKLOwsley48 min
Jul 17, 5:56 PM EDTAreal Flood AdvisoryJKLJackson3 hr
Jul 17, 7:35 PM EDTAreal Flood AdvisoryJKLPulaski3 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.