Alert archive / Kentucky / Areal Flood Advisories in 2021

Areal Flood Advisory 9, NWS Louisville, KY

February 28, 20218 counties in Kentucky; Harrison County, Indiana

NWS Louisville, KY issued this areal flood advisory at Feb 28, 2021, 4:20 AM CST for 8 counties in Kentucky; Harrison County, Indiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Feb 28, 2021, 4:20 AM CST (10:20 UTC)
Expired
Feb 28, 2021, 7:30 AM CST
In force
3 hr
Issued by
NWS Louisville, KY
Area
Storm-based polygon

Counties Harrison County, IN, Breckinridge County, KY, Bullitt County, KY, Hancock County, KY, Jefferson County, KY, Meade County, KY, Ohio County, KY, Oldham County, KY, Shelby County, KY

The radar

The Louisville radar (KLVX), 9 km from the middle of the area, began a volume at 10:19 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, 10.3 hours before the alert went out and 214 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 00:00Z on 2021-02-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 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 00:00Z on 2021-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.1939587897Sfc1 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
35 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
527 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Louisville, KY wrote its last area forecast discussion before this areal flood advisory went out at Feb 28, 3:20 AM CST, 1 hour earlier.

Area forecast discussion, Feb 28, 3:20 AM CST, 1 hour 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, Feb 28, 3:13 AM CST, 1 hour 7 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
413 AM EST Sun Feb 28 2021

INZ083-084-089>092-KYZ023>040-045-010915-
Dubois-Crawford-Perry-Harrison-Floyd-Clark-Hancock-Breckinridge-
Meade-Ohio-Grayson-Hardin-Bullitt-Jefferson-Oldham-Trimble-Henry-
Shelby-Franklin-Scott-Spencer-Anderson-Woodford-Nelson-
Including the cities of Jasper, English, Tell City, Corydon,
New Albany, Jeffersonville, Lewisport, Hawesville, Hardinsburg,
Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville,
Louisville, La Grange, Bedford, Milton, New Castle, Shelbyville,
Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg,
Versailles, and Bardstown
413 AM EST Sun Feb 28 2021 /313 AM CST Sun Feb 28 2021/

...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING...

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Several waves of moderate rainfall are expected through Sunday
evening. Some of it could be locally torrential rainfall which could
result in flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Rivers will be rising...with the Green, Kentucky, Licking, have the
greatest threat of going into flood.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report heavy rainfall amounts and
flooding through Sunday night.

INZ076>079-010915-
Orange-Washington-Scott-Jefferson-
Including the cities of Paoli, Salem, Scottsburg, and Madison
413 AM EST Sun Feb 28 2021

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Several waves of moderate rainfall are expected through Sunday
evening. Some of it could be locally heavier rainfall which could
result in flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report heavy rainfall amounts and
flooding through Sunday night.

KYZ041>043-046>049-053>057-061>067-070>078-081-082-010915-
Fayette-Bourbon-Nicholas-Washington-Mercer-Jessamine-Clark-Larue-
Marion-Boyle-Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey-
Lincoln-Logan-Warren-Simpson-Allen-Barren-Monroe-Metcalfe-Adair-
Russell-Cumberland-Clinton-
Including the cities of Lexington, Paris, Carlisle, Springfield,
Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon,
Danville, Lancaster, Richmond, Morgantown, Brownsville, Horse Cave,
Greensburg, Campbellsville, Liberty, Stanford, Russellville,
Bowling Green, Franklin, Providence, Scottsville, Glasgow,
Tompkinsville, Edmonton, Columbia, Jamestown, Burkesville,
and Albany
413 AM EST Sun Feb 28 2021 /313 AM CST Sun Feb 28 2021/

...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING...

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Several waves of moderate rainfall are expected through Sunday
evening. Some of it could be locally torrential rainfall which could
result in substantial flooding.

A few stronger thunderstorms this afternoon and early evening could
also produce some damaging winds...with the best chance south of the
Cumberland Parkway.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Excessive rainfall and runoff could lead to flooding. Rivers such as
the Green, Kentucky, and Licking, have the greatest threat of going
into flood.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report heavy rainfall amounts and
flooding through Sunday night, as well as any damaging winds this
afternoon and evening.

JDG

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 9:16 PM CSTSpecial Weather StatementLMKClinton44 min
Feb 27, 10:01 PM CSTAreal Flood AdvisoryLMKClinton119 min
Feb 28, 7:09 AM CSTAreal Flood WarningLMKBullitt, Jefferson, Shelby, Spencer4 hr
Feb 28, 7:30 AM CSTAreal Flood AdvisoryLMKBreckinridge, Hancock, Henry, Meade, Oldham, Trimble4 hr
Feb 28, 8:25 AM CSTAreal Flood WarningLMKFranklin, Harrison, Scott3 hr
Feb 28, 9:27 AM CSTAreal Flood WarningLMKButler, Edmonson, Logan, Simpson, Warren6 hr
Feb 28, 9:31 AM CSTSpecial Weather StatementLMKWarren29 min
Feb 28, 9:33 AM CSTRiver Flood WarningLMKHardin, Nelson5 days
Feb 28, 9:35 AM CSTRiver Flood AdvisoryLMKBullitt25 hr
Feb 28, 9:38 AM CSTSevere Thunderstorm WarningLMKAllen, Logan, Simpson, Warren22 min
Feb 28, 9:41 AM CSTRiver Flood WarningLMKWarren45 hr
Feb 28, 9:43 AM CSTRiver Flood AdvisoryLMKWarren17 hr
Feb 28, 9:48 AM CSTRiver Flood WarningLMKHart4 days
Feb 28, 9:49 AM CSTRiver Flood WarningLMKButler, Warren8 days
Feb 28, 9:51 AM CSTRiver Flood WarningLMKButler, Muhlenberg, Ohio11 days
Feb 28, 9:54 AM CSTRiver Flood WarningLMKOhio21 days
Feb 28, 9:55 AM CSTFlash Flood WarningLMKButler, Logan, Warren8 hr
Feb 28, 9:58 AM CSTRiver Flood WarningLMKFranklin42 hr
Feb 28, 9:59 AM CSTRiver Flood WarningLMKClark, Madison6 days
Feb 28, 10:00 AM CSTRiver Flood WarningLMKGarrard, Jessamine6 days
Feb 28, 10:01 AM CSTRiver Flood WarningLMKGarrard, Jessamine, Mercer6 days
Feb 28, 10:02 AM CSTRiver Flood WarningLMKAnderson, Franklin, Woodford7 days
Feb 28, 10:04 AM CSTRiver Flood WarningLMKCarroll, Henry, Owen8 days
Feb 28, 10:06 AM CSTAreal Flood WarningLMKBreckinridge, Bullitt, Grayson, Hardin, Nelson, Spencer6 hr
Feb 28, 10:06 AM CSTRiver Flood WarningLMKBourbon48 hr
Feb 28, 10:39 AM CSTAreal Flood WarningLMKBarren, Green, Hart, Metcalfe, Taylor6 hr
Feb 28, 10:47 AM CSTRiver Flood WarningLMKNicholas, Robertson21 days
Feb 28, 10:48 AM CSTRiver Flood WarningLMKHarrison26 hr
Feb 28, 10:55 AM CSTAreal Flood WarningLMKBreckinridge, Bullitt, Jefferson, Meade, Oldham, Shelby and 1 more6 hr
Feb 28, 11:20 AM CSTAreal Flood WarningLMKFranklin, Harrison, Scott, Shelby6 hr
Feb 28, 1:15 PM CSTSpecial Weather StatementLMKLogan30 min
Feb 28, 2:23 PM CSTSpecial Weather StatementLMKBarren37 min
Feb 28, 2:43 PM CSTFlash Flood WarningLMKBoyle, Casey, Garrard, Lincoln, Madison6 hr
Feb 28, 2:47 PM CSTFlash Flood WarningLMKBarren, Edmonson, Green, Hart, Larue, Marion and 3 more6 hr
Feb 28, 4:20 PM CSTAreal Flood WarningLMKAdair, Allen, Barren, Casey, Clinton, Cumberland and 6 more6 hr
Feb 28, 5:07 PM CSTSpecial Weather StatementLMKRussell38 min
Feb 28, 5:19 PM CSTSpecial Weather StatementLMKHancock41 min
Feb 28, 5:40 PM CSTFlash Flood WarningLMKButler, Logan, Warren4 hr
Feb 28, 1:49 PM CSTRiver Flood AdvisoryLMKHarrison, Washington4 hr
Feb 28, 1:53 PM CSTRiver Flood AdvisoryLMKJefferson, Scott5 hr
Feb 28, 5:49 PM CSTRiver Flood WarningLMKHarrison, Washington14 hr

Nearby

Areal Flood Advisories in Kentucky, 2021Areal Flood Advisories in Indiana, 2021Every areal flood advisory 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.