Alert archive / Kentucky / Areal Flood Warnings in 2021

Areal Flood Warning 29, NWS Jackson, KY

March 28, 20214 counties in Kentucky

NWS Jackson, KY issued this areal flood warning at Mar 28, 2021, 5:44 AM EDT for 4 counties in Kentucky. It was in force for 28 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 28, 2021, 5:44 AM EDT (09:44 UTC)
Expired: Mar 29, 2021, 10:00 AM EDT
In force: 28 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties Bell County, KY, McCreary County, KY, Wayne County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 102 km from the middle of the area, began a volume at 09:44 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, 9.7 hours before the alert went out and 219 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: 200 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 458 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Mar 28, 4:19 AM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Mar 28, 4:19 AM EDT, 1 hour 25 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, Mar 28, 5:13 AM EDT, 31 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>

In the hours before

Special weather statement, Mar 28, 1:14 AM EDT, 4 hours 30 minutes before

Special Weather Statement
National Weather Service JACKSON KY
114 AM EDT Sun Mar 28 2021

KYZ044-052-280545-
Rowan-Fleming-
114 AM EDT Sun Mar 28 2021

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL FLEMING AND NORTH
CENTRAL ROWAN COUNTIES...

At 114 AM EDT, a strong thunderstorm was located near Muses Mills, or
11 miles east of Flemingsburg, moving east at 55 mph.

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

Locations impacted include...
Muses Mills and Wallingford.

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 3844 8358 3842 8355 3842 8353 3841 8352
      3841 8351 3840 8350 3840 8348 3838 8345
      3840 8341 3837 8338 3834 8359 3842 8363
TIME...MOT...LOC 0514Z 251DEG 46KT 3840 8353

JMW

Special weather statement, Mar 28, 2:13 AM EDT, 3 hours 31 minutes before

Special Weather Statement
National Weather Service JACKSON KY
213 AM EDT Sun Mar 28 2021

KYZ084-085-280700-
Whitley-McCreary-
213 AM EDT Sun Mar 28 2021

...A STRONG THUNDERSTORM WILL AFFECT MCCREARY AND SOUTHWESTERN
WHITLEY COUNTIES...

At 212 AM EDT, a strong thunderstorm was located over Blue Heron, or
near Whitley City, moving east at 30 mph.

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

Locations impacted include...
Williamsburg, Whitley City, Bon, Blue Heron, Ayers, Marshes Siding,
Duckrun, Co-
Operative, Zion Hill, Redbird, Stearns, Clio, Jellico Creek, Pine
Knot, Krupp, Bounty, Strunk, Hollyhill, Liberty and Indian Mountain
State Park.

If outdoors, consider seeking shelter inside a building.

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

LAT...LON 3660 8465 3675 8468 3675 8467 3685 8419
      3659 8414
TIME...MOT...LOC 0612Z 261DEG 28KT 3667 8457

GREIF

Special weather statement, Mar 28, 3:12 AM EDT, 2 hours 32 minutes before

Special Weather Statement
National Weather Service JACKSON KY
312 AM EDT Sun Mar 28 2021

KYZ080-084>088-115>118-280815-
Whitley-McCreary-Clay-Knox-Perry-Bell-Harlan-Letcher-Laurel-Leslie-
312 AM EDT Sun Mar 28 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT HARLAN...SOUTHEASTERN
LAUREL...BELL...KNOX...SOUTHERN LETCHER...SOUTHERN LESLIE...
SOUTHEASTERN PERRY...MCCREARY...WHITLEY AND SOUTHEASTERN CLAY
COUNTIES...

At 312 AM EDT, strong thunderstorms were clustered near Duckrun, or
near Whitley City, moving east at 60 mph.

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

Locations impacted include...
Williamsburg, Barbourville, Whitesburg, Harlan, Pineville,
Middlesboro, Whitley City, Cumberland, Loyall, Evarts, Lynch, Benham,
Wallins Creek, Big Fork, Brightshade, Varilla, Swan Lake, Louellen,
Cumberland Falls S.P. and Co-Operative.

If outdoors, consider seeking shelter inside a building.

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

LAT...LON 3660 8476 3697 8432 3714 8268 3712 8272
      3705 8272 3698 8287 3690 8287 3685 8301
      3685 8307 3674 8314 3667 8343 3667 8353
      3660 8368
TIME...MOT...LOC 0712Z 256DEG 52KT 3673 8437

GREIF

Special weather statement, Mar 28, 4:08 AM EDT, 1 hour 36 minutes before

Special Weather Statement
National Weather Service JACKSON KY
408 AM EDT Sun Mar 28 2021

KYZ085>088-115>118-280915-
Whitley-Clay-Knox-Perry-Bell-Harlan-Letcher-Leslie-
408 AM EDT Sun Mar 28 2021

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

At 408 AM EDT, strong thunderstorms were clustered over Bimble, or
near Barbourville, moving east at 30 mph.

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

Locations impacted include...
Barbourville, Whitesburg, Harlan, Pineville, Middlesboro, Letcher,
Cumberland, Loyall, Evarts, Lynch, Benham, Wallins Creek, Blackey,
Big Fork, Brightshade, Varilla, Louellen, Premium, Coldiron and Goose
Rock.

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

LAT...LON 3659 8408 3715 8369 3716 8263 3712 8272
      3705 8272 3703 8275 3698 8287 3690 8287
      3685 8301 3685 8307 3674 8314 3667 8343
      3667 8353 3658 8369
TIME...MOT...LOC 0808Z 261DEG 27KT 3688 8381

GREIF

Local storm report, Mar 28, 5:21 AM EDT, 23 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>

Local storm report, Mar 28, 5:37 AM EDT, 7 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 11:22 PM EDT	Areal Flood Advisory	JKL	Bell, Harlan, Knox, McCreary, Wayne, Whitley	9 hr
Mar 28, 12:43 AM EDT	Special Weather Statement	JKL	Fleming	32 min
Mar 28, 12:55 AM EDT	Special Weather Statement	JKL	Fleming	35 min
Mar 28, 1:09 AM EDT	River Flood Warning	JKL	Whitley	5 days
Mar 28, 1:14 AM EDT	Special Weather Statement	JKL	Fleming	31 min
Mar 28, 1:48 AM EDT	Flash Flood Warning	JKL	Bell, McCreary, Wayne, Whitley	6 min
Mar 28, 1:54 AM EDT	Flash Flood Warning	JKL	Bell, McCreary, Wayne, Whitley	4 hr
Mar 28, 2:13 AM EDT	Special Weather Statement	JKL	McCreary	47 min
Mar 28, 2:22 AM EDT	Areal Flood Advisory	JKL	Knox, Laurel, McCreary, Pulaski, Wayne, Whitley	20 hr
Mar 28, 2:49 AM EDT	Flash Flood Warning	JKL	McCreary, Whitley	4 hr
Mar 28, 3:09 AM EDT	Flash Flood Warning	JKL	Bell, Harlan, Knox, Whitley	4 hr
Mar 28, 3:12 AM EDT	Special Weather Statement	JKL	Bell, Harlan, Knox, Letcher, McCreary, Whitley	63 min
Mar 28, 3:16 AM EDT	Areal Flood Advisory	JKL	Bell, Clay, Harlan, Laurel, Leslie, Letcher and 1 more	6 hr
Mar 28, 3:51 AM EDT	Areal Flood Advisory	JKL	Clay, Jackson, Knox, Laurel, Pulaski, Rockcastle	30 hr
Mar 28, 4:00 AM EDT	Flash Flood Warning	JKL	Knox	4 hr
Mar 28, 4:08 AM EDT	Special Weather Statement	JKL	Bell, Harlan, Knox, Leslie, Letcher	67 min
Mar 28, 5:00 AM EDT	Flash Flood Warning	JKL	Bell, Clay, Harlan, Knox, Leslie, Letcher and 1 more	6 hr
Mar 28, 5:23 AM EDT	Areal Flood Advisory	JKL	Clay, Knott, Leslie, Letcher, Perry	11 hr
Mar 28, 6:04 AM EDT	River Flood Warning	JKL	Bell	32 hr
Mar 28, 6:04 AM EDT	River Flood Warning	JKL	Knox	62 hr
Mar 28, 6:25 AM EDT	Areal Flood Warning	JKL	Knox, McCreary, Pulaski, Wayne, Whitley	28 hr
Mar 28, 6:46 AM EDT	Areal Flood Warning	JKL	Bell, Harlan, Knox, Whitley	27 hr
Mar 28, 7:44 AM EDT	Areal Flood Warning	JKL	Clay, Knox, Laurel, Whitley	26 hr
Mar 28, 7:54 AM EDT	River Flood Warning	JKL	Harlan	13 hr
Mar 28, 8:20 AM EDT	Areal Flood Warning	JKL	Clay, Floyd, Knott, Leslie, Letcher, Perry and 1 more	26 hr
Mar 28, 8:53 AM EDT	Areal Flood Advisory	JKL	Floyd, Knott, Letcher, Perry, Pike	5 hr
Mar 28, 9:39 AM EDT	River Flood Advisory	JKL	Clay	29 hr
Mar 28, 9:44 AM EDT	River Flood Advisory	JKL	Letcher	49 min
Mar 28, 10:18 AM EDT	River Flood Advisory	JKL	Harlan	6 hr
Mar 28, 10:33 AM EDT	River Flood Warning	JKL	Letcher	6 hr
Mar 28, 10:43 AM EDT	River Flood Warning	JKL	Perry	25 hr
Mar 28, 10:46 AM EDT	River Flood Warning	JKL	Lee	46 hr
Mar 28, 10:46 AM EDT	River Flood Warning	JKL	Estill	66 hr
Mar 28, 10:47 AM EDT	Areal Flood Warning	JKL	Bell, Clay, Harlan, Knox, Leslie, Letcher and 1 more	23 hr
Mar 28, 2:17 PM EDT	Areal Flood Warning	JKL	Breathitt, Knott, Perry	5 hr
Mar 28, 3:04 PM EDT	River Flood Advisory	JKL	Pike	15 hr
Mar 28, 3:07 PM EDT	River Flood Warning	JKL	Owsley	30 hr
Mar 28, 5:19 PM EDT	River Flood Advisory	JKL	Floyd	63 hr
Mar 28, 5:25 PM EDT	River Flood Advisory	JKL	Johnson	30 hr
Mar 28, 7:01 PM EDT	Areal Flood Warning	JKL	Leslie, Perry	8 days
Mar 28, 7:15 PM EDT	River Flood Advisory	JKL	Breathitt	40 hr

Nearby

Areal Flood Warnings in Kentucky, 2021 Every areal flood warning 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.