Alert archive / Kentucky / Flash Flood Watches in 2015

Flash Flood Watch 5, NWS Louisville, KY

July 1, 201549 counties in Kentucky; 10 counties in Indiana

NWS Louisville, KY issued this flash flood watch at Jul 1, 2015, 9:44 PM CDT for 49 counties in Kentucky; 10 counties in Indiana. It was in force for 53 hr.

The area

The counties it named.

The facts

Issued
Jul 1, 2015, 9:44 PM CDT (02:44 UTC)
Expired
Jul 4, 2015, 2:26 AM CDT
In force
53 hr
Issued by
NWS Louisville, KY
Flood severity
None
All 59 counties

Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 43 km from the middle of the area, began a volume at 02:47 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, 2.7 hours before the alert went out and 205 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 2015-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 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 2015-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.193958Sfc1 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
5 J/kg
Mixed-layer CIN
-148 J/kg
Mixed-layer LCL
1041 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Jul 1, 9:02 PM CDT, 42 minutes earlier.

Area forecast discussion, Jul 1, 9:02 PM CDT, 42 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 1, 8:49 PM CDT, 55 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
Jul 2, 2:20 AM CDTAreal Flood AdvisoryLMKButler, Ohio3 hr
Jul 2, 3:28 AM CDTAreal Flood AdvisoryLMKBarren, Edmonson, Warren3 hr
Jul 2, 3:50 AM CDTSpecial Weather StatementLMKSimpson30 min
Jul 2, 5:21 AM CDTAreal Flood AdvisoryLMKWarren3 hr
Jul 2, 6:37 AM CDTAreal Flood AdvisoryLMKAllen, Simpson, Warren3 hr
Jul 2, 8:40 AM CDTSpecial Weather StatementLMKFayette, Jessamine, Madison, Woodford45 min
Jul 2, 9:35 AM CDTAreal Flood AdvisoryLMKBourbon, Clark, Fayette, Garrard, Jessamine, Madison3 hr
Jul 2, 1:54 PM CDTAreal Flood AdvisoryLMKButler, Edmonson, Grayson, Ohio, Warren3 hr
Jul 2, 2:29 PM CDTAreal Flood AdvisoryLMKFranklin, Henry, Scott3 hr
Jul 2, 2:33 PM CDTAreal Flood AdvisoryLMKAdair, Barren, Casey, Green, Hart, Metcalfe and 1 more4 hr
Jul 2, 3:10 PM CDTSpecial Weather StatementLMKLogan45 min
Jul 2, 3:18 PM CDTFlash Flood WarningLMKButler, Edmonson, Grayson, Hart, Logan, Ohio and 1 more4 hr
Jul 2, 3:25 PM CDTFlash Flood WarningLMKAdair, Barren, Clinton, Cumberland, Green, Hart and 2 more4 hr
Jul 2, 4:45 PM CDTAreal Flood AdvisoryLMKAdair, Casey, Green, Hart, Larue, Lincoln and 1 more3 hr
Jul 2, 4:53 PM CDTSevere Thunderstorm WarningLMKBarren, Metcalfe, Monroe32 min
Jul 2, 5:10 PM CDTTornado WarningLMKBarren, Monroe19 min
Jul 2, 5:32 PM CDTSpecial Weather StatementLMKMonroe43 min
Jul 2, 5:46 PM CDTSevere Thunderstorm WarningLMKMonroe39 min
Jul 2, 6:24 PM CDTAreal Flood AdvisoryLMKClinton, Cumberland, Monroe3 hr
Jul 1, 9:10 PM CDTAreal Flood AdvisoryLMKCrawford, Dubois, Orange, Perry3 hr
Jul 1, 9:58 PM CDTFlash Flood WarningLMKCrawford, Dubois, Orange, Perry4 hr
Jul 1, 10:43 PM CDTAreal Flood AdvisoryLMKHarrison3 hr
Jul 2, 1:58 AM CDTAreal Flood AdvisoryLMKCrawford, Dubois, Orange4 hr
Jul 2, 9:50 AM CDTFlash Flood WarningLMKDubois3 hr
Jul 2, 11:49 AM CDTAreal Flood AdvisoryLMKCrawford, Dubois5 hr
Jul 2, 1:22 PM CDTAreal Flood AdvisoryLMKClark, Orange, Washington3 hr

Nearby

Flash Flood Watches in Kentucky, 2015Flash Flood Watches in Indiana, 2015Every flash flood watch in 2015

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.