Alert archive / Ohio / Areal Flood Warnings in 2011

Areal Flood Warning 25, NWS Cleveland, OH

May 12, 2011Erie County, Huron County, Ohio

NWS Cleveland, OH issued this areal flood warning at May 12, 2011, 4:26 PM EDT for Erie County, Huron County, Ohio. It was in force for 3 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
May 12, 2011, 4:26 PM EDT (20:26 UTC)
Expired
May 12, 2011, 7:30 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

Counties Erie County, OH, Huron County, OH

The radar

The Cleveland radar (KCLE), 67 km from the middle of the area, began a volume at 20:26 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

Detroit, MI (KDTX), launched 12:00Z, 8.4 hours before the alert went out and 172 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, Detroit, MI at 12:00Z on 2011-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 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, Detroit, MI at 12:00Z on 2011-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 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
34 J/kg
Mixed-layer CIN
-266 J/kg
Mixed-layer LCL
1215 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
252 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

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 Cleveland, OH wrote its last area forecast discussion before this areal flood warning went out at May 12, 3:39 PM EDT, 47 minutes earlier.

Area forecast discussion, May 12, 3:39 PM EDT, 47 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, May 12, 11:32 AM EDT, 4 hours 54 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 Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 5:11 AM EDTSevere Thunderstorm WarningCLEAshland, Richland49 min
May 12, 6:03 AM EDTSevere Thunderstorm WarningCLEAshland, Holmes, Wayne57 min
May 12, 7:02 AM EDTSevere Thunderstorm WarningCLEHolmes58 min
May 12, 8:23 AM EDTSpecial Marine WarningCLE82 min
May 12, 2:50 PM EDTSevere Thunderstorm WarningCLEErie, Huron, Lorain40 min
May 12, 3:33 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake42 min
May 12, 3:34 PM EDTSevere Thunderstorm WarningCLECrawford, Huron, Richland, Seneca56 min
May 12, 3:44 PM EDTFlash Flood WarningCLEAshtabula, Geauga, Lake3 hr
May 12, 3:50 PM EDTSevere Thunderstorm WarningCLEAshland, Medina, Wayne55 min
May 12, 3:54 PM EDTSevere Thunderstorm WarningCLEErie, Huron51 min
May 12, 3:56 PM EDTSevere Thunderstorm WarningCLEMedina, Portage, Summit64 min
May 12, 4:08 PM EDTSevere Thunderstorm WarningCLECuyahoga, Medina, Summit67 min
May 12, 4:11 PM EDTAreal Flood AdvisoryCLEAshland, Cuyahoga, Erie, Geauga, Huron, Lake and 5 more10 hr
May 12, 4:14 PM EDTSevere Thunderstorm WarningCLEAshtabula, Geauga, Lake46 min
May 12, 4:19 PM EDTSevere Thunderstorm WarningCLETrumbull41 min
May 12, 4:39 PM EDTSevere Thunderstorm WarningCLEGeauga, Portage, Trumbull51 min
May 12, 4:45 PM EDTSevere Thunderstorm WarningCLEGeauga45 min
May 12, 4:58 PM EDTSevere Thunderstorm WarningCLEAshland, Medina, Wayne47 min
May 12, 5:27 PM EDTAreal Flood AdvisoryCLEMahoning, Trumbull9 hr
May 12, 5:29 PM EDTRiver Flood WarningCLEErie, Huron7 hr
May 12, 5:43 PM EDTSpecial Marine WarningCLE77 min
May 12, 5:58 PM EDTSevere Thunderstorm WarningCLEMahoning47 min
May 12, 6:38 PM EDTAreal Flood AdvisoryCLESandusky, Seneca3 hr
May 12, 6:43 PM EDTAreal Flood WarningCLEGeauga, Lake4 hr

Nearby

Areal Flood Warnings in Ohio, 2011Every areal flood warning in 2011

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.