Alert archive / Ohio / Special Weather Statements in 2011

Special Weather Statement, NWS Pittsburgh, PA

July 20, 2011Coshocton County, Ohio

NWS Pittsburgh, PA issued this special weather statement at Jul 20, 2011, 5:18 PM EDT for Coshocton County, Ohio. It was in force for 57 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: Jul 20, 2011, 5:18 PM EDT (21:18 UTC)
Expired: Jul 20, 2011, 6:15 PM EDT
In force: 57 min
Issued by: NWS Pittsburgh, PA

County Coshocton County, OH

The radar

The Cleveland radar (KCLE), 143 km from the middle of the area, began a volume at 21:18 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, 9.3 hours before the alert went out and 162 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: 2184 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Pittsburgh, PA wrote its last area forecast discussion before this special weather statement went out at Jul 19, 7:54 PM EDT, 21 hours 24 minutes earlier.

Area forecast discussion, Jul 19, 7:54 PM EDT, 21 hours 24 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.
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The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 4:00 AM EDT	Excessive Heat Watch	PBZ	Allegheny, Beaver, Butler, Greene, Lawrence, Mercer and 2 more	8 hr
Jul 20, 11:32 AM EDT	Excessive Heat Warning	PBZ	Allegheny, Armstrong, Beaver, Butler, Clarion, Fayette and 6 more	30 hr
Jul 20, 11:32 AM EDT	Heat Advisory	PBZ	Clarion, Fayette, Forest, Jefferson, Westmoreland	30 hr

Nearby

Special Weather Statements in Ohio, 2011 Every special weather statement 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.