Alert archive / Maine / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 62, NWS Gray, ME

July 18, 2013Cumberland County, Maine

NWS Gray, ME issued this severe thunderstorm warning at Jul 18, 2013, 3:29 PM EDT for Cumberland County, Maine. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2013, 3:29 PM EDT (19:29 UTC)
Expired: Jul 18, 2013, 4:15 PM EDT
In force: 46 min
Issued by: NWS Gray, ME
Area: Storm-based polygon

County Cumberland County, ME

The radar

The Portland,ME radar (KGYX), 11 km from the middle of the area, began a volume at 19:31 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

Gray, ME (KGYX), launched 12:00Z, 7.5 hours before the alert went out and 11 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: 32 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1245 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Gray, ME wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 12:42 PM EDT, 2 hours 47 minutes earlier.

Area forecast discussion, Jul 18, 12:42 PM EDT, 2 hours 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, Jul 18, 3:36 AM EDT, 11 hours 53 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

Local storm report, Jul 18, 9:32 AM EDT, 5 hours 57 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 18, 2:25 PM EDT, 1 hour 4 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 18, 2:45 PM EDT, 44 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 18, 2:58 PM EDT, 31 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 Gray, ME issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 17, 8:11 PM EDT	Special Weather Statement	GYX	Somerset	49 min
Jul 17, 8:23 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Oxford, York	67 min
Jul 17, 8:38 PM EDT	Special Weather Statement	GYX	Franklin	52 min
Jul 17, 9:27 PM EDT	Severe Thunderstorm Warning	GYX	Cumberland, Oxford, York	48 min
Jul 17, 9:34 PM EDT	Special Weather Statement	GYX	Kennebec	41 min
Jul 17, 9:37 PM EDT	Special Marine Warning	GYX		113 min
Jul 17, 9:54 PM EDT	Severe Thunderstorm Warning	GYX	Androscoggin, Cumberland, Lincoln, Sagadahoc	36 min
Jul 17, 10:26 PM EDT	Special Weather Statement	GYX	York	19 min
Jul 17, 10:36 PM EDT	Special Weather Statement	GYX	Knox	24 min
Jul 18, 2:25 PM EDT	Special Weather Statement	GYX	Cumberland	35 min
Jul 18, 2:45 PM EDT	Special Weather Statement	GYX	Cumberland	30 min
Jul 18, 2:58 PM EDT	Special Weather Statement	GYX	Cumberland	32 min
Jul 18, 3:31 PM EDT	Heat Advisory	GYX	Androscoggin, Cumberland, Kennebec, Oxford, York	27 hr
Jul 18, 3:39 PM EDT	Special Marine Warning	GYX		66 min
Jul 18, 4:26 PM EDT	Special Weather Statement	GYX	York	34 min
Jul 18, 4:47 PM EDT	Special Weather Statement	GYX	Kennebec	28 min
Jul 18, 5:43 PM EDT	Special Weather Statement	GYX	Cumberland	32 min
Jul 18, 5:46 PM EDT	Special Weather Statement	GYX	Waldo	44 min
Jul 18, 5:54 PM EDT	Special Weather Statement	GYX		36 min
Jul 18, 7:59 PM EDT	Flash Flood Warning	GYX	Franklin, Oxford	4 hr
Jul 17, 9:20 PM EDT	Areal Flood Advisory	GYX	Grafton	115 min
Jul 17, 9:37 PM EDT	Flash Flood Warning	GYX	Grafton	3 hr
Jul 18, 3:42 PM EDT	Severe Thunderstorm Warning	GYX	Merrimack, Rockingham, Strafford	48 min
Jul 18, 4:49 PM EDT	Special Weather Statement	GYX	Grafton	26 min
Jul 18, 5:47 PM EDT	Special Weather Statement	GYX	Merrimack	43 min

Nearby

Severe Thunderstorm Warnings in Maine, 2013 Every severe thunderstorm warning in 2013

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.