Alert archive / New York / Special Weather Statements in 2011

Special Weather Statement, NWS New York, NY

August 15, 2011Nassau County, New York

NWS New York, NY issued this special weather statement at Aug 15, 2011, 5:31 PM EDT for Nassau County, New York. It was in force for 59 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: Aug 15, 2011, 5:31 PM EDT (21:31 UTC)
Expired: Aug 15, 2011, 6:30 PM EDT
In force: 59 min
Issued by: NWS New York, NY

County Nassau County, NY

The radar

The Brookhaven radar (KOKX), 48 km from the middle of the area, began a volume at 21:32 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.5 hours before the alert went out and 271 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: 460 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 689 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 31 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 New York, NY wrote its last area forecast discussion before this special weather statement went out at Aug 14, 7:53 PM EDT, 21 hours 38 minutes earlier.

Area forecast discussion, Aug 14, 7:53 PM EDT, 21 hours 38 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 New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 8:33 PM EDT	Areal Flood Advisory	OKX	Kings, New York, Richmond	57 min
Aug 14, 9:32 PM EDT	Areal Flood Advisory	OKX	Bronx, Kings, New York, Queens, Richmond	58 min
Aug 14, 11:16 PM EDT	Areal Flood Advisory	OKX	Nassau, Queens, Westchester	89 min
Aug 15, 2:20 AM EDT	Areal Flood Advisory	OKX	Rockland	115 min
Aug 15, 4:47 AM EDT	Areal Flood Advisory	OKX	Suffolk	4 hr
Aug 15, 6:01 AM EDT	Areal Flood Advisory	OKX	Orange	104 min
Aug 15, 9:09 AM EDT	Areal Flood Advisory	OKX	Suffolk	3 hr
Aug 15, 2:13 PM EDT	Areal Flood Advisory	OKX	Orange	3 hr
Aug 15, 3:59 PM EDT	Special Weather Statement	OKX	Richmond	61 min
Aug 15, 4:21 PM EDT	Areal Flood Advisory	OKX	Westchester	54 min
Aug 15, 4:48 PM EDT	Special Weather Statement	OKX	Bronx, New York	57 min
Aug 15, 5:17 PM EDT	Areal Flood Advisory	OKX	Orange	58 min
Aug 15, 5:19 PM EDT	Special Weather Statement	OKX	Rockland, Westchester	56 min
Aug 15, 6:22 PM EDT	Special Weather Statement	OKX	Orange	38 min
Aug 15, 3:55 PM EDT	Areal Flood Advisory	OKX	Bergen, Essex, Hudson, Passaic, Union	80 min
Aug 14, 10:27 PM EDT	Areal Flood Advisory	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	48 min
Aug 14, 10:50 PM EDT	Flash Flood Warning	OKX	Naugatuck Valley Planning Region	55 min
Aug 14, 11:45 PM EDT	Flash Flood Warning	OKX	Naugatuck Valley Planning Region	73 min
Aug 15, 1:04 AM EDT	Flash Flood Warning	OKX	Greater Bridgeport Planning Region, Naugatuck Valley Planning Region	62 min
Aug 15, 12:06 PM EDT	Areal Flood Advisory	OKX	Southeastern Connecticut Planning Region	78 min

Nearby

Special Weather Statements in New York, 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.