Alert archive / Ohio / Flash Flood Watches in 2015

Flash Flood Watch 7, NWS Wilmington, OH

July 7, 201514 counties in Ohio; 12 counties in Kentucky; Ohio County, Switzerland County, Indiana

NWS Wilmington, OH issued this flash flood watch at Jul 7, 2015, 3:43 PM EDT for 14 counties in Ohio; 12 counties in Kentucky; Ohio County, Switzerland County, Indiana. It took effect at Jul 7, 2015, 8:00 PM EDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Jul 7, 2015, 3:43 PM EDT (19:43 UTC)
In effect from: Jul 7, 2015, 8:00 PM EDT
Expired: Jul 8, 2015, 8:00 PM EDT
In force: 24 hr
Issued by: NWS Wilmington, OH
Flood severity: None

All 28 counties

Ohio County, IN, Switzerland County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Adams County, OH, Brown County, OH, Clermont County, OH, Clinton County, OH, Fairfield County, OH, Fayette County, OH, Hamilton County, OH, Highland County, OH, Hocking County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 49 km from the middle of the area, began a volume at 19:44 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.7 hours before the alert went out and 50 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: 889 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 601 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: 20 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 flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, OH wrote its last area forecast discussion before this flash flood watch went out at Jul 7, 2:33 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jul 7, 2:33 PM EDT, 1 hour 10 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 7, 5:32 AM EDT, 10 hours 11 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, Jul 7, 3:04 PM EDT, 39 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 7, 3:25 PM EDT, 18 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 Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 7, 1:21 PM EDT	Areal Flood Advisory	ILN	Auglaize, Mercer	3 hr
Jul 7, 3:04 PM EDT	Special Weather Statement	ILN	Ross	26 min
Jul 7, 3:25 PM EDT	Special Weather Statement	ILN	Ross	35 min
Jul 7, 3:46 PM EDT	Special Weather Statement	ILN	Madison	29 min
Jul 7, 4:10 PM EDT	Special Weather Statement	ILN	Franklin	35 min
Jul 7, 5:06 PM EDT	Special Weather Statement	ILN	Licking	24 min
Jul 7, 5:59 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	46 min
Jul 7, 6:25 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Pike, Scioto	65 min
Jul 7, 6:47 PM EDT	Special Weather Statement	ILN	Pike	28 min
Jul 7, 6:53 PM EDT	Special Weather Statement	ILN	Franklin	37 min
Jul 7, 7:02 PM EDT	Areal Flood Advisory	ILN	Delaware, Fairfield, Franklin, Licking, Madison, Pickaway	3 hr
Jul 7, 5:10 PM EDT	Special Weather Statement	ILN	Bracken, Mason, Robertson	35 min
Jul 7, 5:43 PM EDT	Special Weather Statement	ILN	Lewis, Mason	32 min

Nearby

Flash Flood Watches in Ohio, 2015 Flash Flood Watches in Kentucky, 2015 Flash Flood Watches in Indiana, 2015 Every 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.