Alert archive / New York / Areal Flood Advisories in 2011

Areal Flood Advisory 36, NWS Buffalo, NY

May 27, 2011Chautauqua County, New York

NWS Buffalo, NY issued this areal flood advisory at May 27, 2011, 3:17 PM EDT for Chautauqua County, New York. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 27, 2011, 3:17 PM EDT (19:17 UTC)
Expired: May 27, 2011, 6:15 PM EDT
In force: 3 hr
Issued by: NWS Buffalo, NY
Area: Storm-based polygon

County Chautauqua County, NY

The radar

The Buffalo radar (KBUF), 90 km from the middle of the area, began a volume at 19:19 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.3 hours before the alert went out and 91 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: 39 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 483 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 71 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 areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this areal flood advisory went out at May 27, 1:53 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, May 27, 1:53 PM EDT, 1 hour 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, May 27, 5:16 AM EDT, 10 hours 1 minute 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 Buffalo, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 8:26 PM EDT	Special Marine Warning	BUF		48 min
May 26, 8:26 PM EDT	Special Weather Statement	BUF	Monroe	49 min
May 26, 8:38 PM EDT	Special Weather Statement	BUF	Jefferson	37 min
May 26, 8:56 PM EDT	Special Weather Statement	BUF	Lewis, Oswego	64 min
May 26, 9:03 PM EDT	Special Weather Statement	BUF	Genesee	27 min
May 26, 9:20 PM EDT	Special Weather Statement	BUF	Jefferson	40 min
May 27, 4:10 PM EDT	Areal Flood Warning	BUF	Chautauqua	4 hr
May 27, 5:23 PM EDT	Areal Flood Advisory	BUF	Cattaraugus, Chautauqua, Erie	3 hr
May 27, 6:53 PM EDT	Areal Flood Advisory	BUF	Allegany, Cattaraugus	3 hr

Nearby

Areal Flood Advisories in New York, 2011 Every areal flood advisory 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.