Alert archive / Kentucky / Special Weather Statements in 2020

Special Weather Statement, NWS Louisville, KY

June 18, 2020Madison County, Kentucky

NWS Louisville, KY issued this special weather statement at Jun 18, 2020, 3:21 PM EDT for Madison County, Kentucky. It was in force for 24 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
Jun 18, 2020, 3:21 PM EDT (19:21 UTC)
Expired
Jun 18, 2020, 3:45 PM EDT
In force
24 min
Issued by
NWS Louisville, KY

County Madison County, KY

The radar

The Jackson,KY radar (KJKL), 82 km from the middle of the area, began a volume at 19:21 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, 7.4 hours before the alert went out and 211 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 2020-06-18Temperature 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 2020-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1323 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Louisville, KY wrote its last area forecast discussion before this special weather statement went out at Jun 18, 3:07 PM EDT, 14 minutes earlier.

Area forecast discussion, Jun 18, 3:07 PM EDT, 14 minutes before
Area Forecast Discussion
National Weather Service Louisville KY
307 PM EDT Thu Jun 18 2020

.Short Term...(This evening through Friday)
Issued at 300 PM EDT Thu Jun 18 2020

Area radars continue to show scattered showers and a few
thunderstorms developing this afternoon generally along and east of
I-65. This activity will continue just past sunset and may linger
longer during the overnight hours in the Bluegrass region.
Lightning, brief heavy downpour along with gusty winds and small
hail are possible with some of these storms. This activity continues
to be associated with the same upper level low that's been
influencing our weather the past few days. Tonight into tomorrow,
the low starts to lift and slowly exit to the NE and be over western
PA as short wave ridging begins to build in from the west.

While the upper low will be moving away, there's still 20 to 30% PoP
along and east of I-65. Once again any storms that form Friday
afternoon should remain sub-severe. Temperatures are warmer,
reaching the middle to upper 80s tomorrow afternoon.

&&

.Long Term...(Friday night through Thursday)
Issued at 253 PM EDT Thu Jun 18 2020

Hot and mostly dry weather will start out the weekend as upper level
ridging builds in from the west. High temperatures should easily
climb into the upper 80s and low 90s on Saturday. On Sunday, a weak
cold front will begin moving into southern IL and central IN. Shower
and storm chances will increase ahead of the front, with the best
chances locally in our region being north of the Ohio River.

The evolution of the front going into next week varies amongst
mid/long range guidance. While confidence in the forecast details
remain low, it appears that we should see near daily chances for
showers and storms, especially if the frontal boundary ends up in
the vicinity of the region. Conditions will remain warm and muggy
during this timeframe.

&&

.Aviation...(18Z TAF Issuance)
Issued at 100 PM EDT Thu Jun 18 2020

Upper level low continues to spin over the borders of WV/OH/KY this
afternoon. Mid and high-level clouds continue to stream in around
this low. Through the afternoon there could be very isolated showers
and storms along and east of I-65 with the higher threat of showers
and isolated thunder around LEX this afternoon and evening. Have
VCSH & VCTS in TAF sites SDF/LEX/BWG for this afternoon but
diminishing near and after sunset. Wind will remain light and clouds
will linger over the Bluegrass and eastern KY tonight into Friday.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
IN...None.
KY...None.
&&

Short Term...BTN
Long Term...DM
Aviation...BTN
Hazardous weather outlook, Jun 18, 3:14 PM EDT, 7 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
314 PM EDT Thu Jun 18 2020

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-191915-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-
Oldham-Trimble-Henry-Shelby-Franklin-Spencer-Anderson-Woodford-
Fayette-Bourbon-Nicholas-Nelson-Mercer-Jessamine-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 Paoli, Salem, Scottsburg, Madison, 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, Lexington, Paris, Carlisle,
Bardstown, 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
314 PM EDT Thu Jun 18 2020 /214 PM CDT Thu Jun 18 2020/

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

.DAY ONE...Tonight.

Isolated thunderstorms will be possible this evening. Brief gusty
winds, small hail and cloud to ground lightning is a hazard with any
thunderstorm.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

A few thunderstorms will be possible each day, mainly in the
afternoon and evening. No organized severe weather is expected, but
cloud to ground lightning is a hazard with any thunderstorm.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected.

BTN/DM

In the hours before

Special weather statement, Jun 18, 1:48 PM EDT, 1 hour 33 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, Jun 18, 3:21 PM EDT, 0 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 Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 1:48 PM EDTSpecial Weather StatementLMKClark27 min
Jun 18, 3:51 PM EDTAreal Flood AdvisoryLMKMadison3 hr
Jun 18, 4:27 PM EDTSpecial Weather StatementLMKGarrard33 min
Jun 18, 5:06 PM EDTSpecial Weather StatementLMKLincoln24 min
Jun 18, 5:52 PM EDTSpecial Weather StatementLMKCasey38 min
Jun 18, 5:56 PM EDTAreal Flood AdvisoryLMKTaylor3 hr
Jun 18, 6:14 PM EDTSpecial Weather StatementLMKBoyle31 min
Jun 18, 6:26 PM EDTSpecial Weather StatementLMKTaylor34 min
Jun 18, 6:50 PM EDTSpecial Weather StatementLMKTaylor25 min
Jun 18, 7:04 PM EDTSpecial Weather StatementLMKAdair26 min
Jun 18, 7:07 PM EDTAreal Flood AdvisoryLMKTaylor3 hr
Jun 18, 7:19 PM EDTFlash Flood WarningLMKTaylor116 min

Nearby

Special Weather Statements in Kentucky, 2020Every special weather statement in 2020

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.