Alert archive / New Jersey / Areal Flood Advisories in 2008

Areal Flood Advisory 30, NWS Philadelphia/Mount Holly

September 26, 2008Middlesex County, Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Sep 26, 2008, 9:04 AM EDT for Middlesex County, Monmouth County, Ocean County, New Jersey. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Sep 26, 2008, 9:04 AM EDT (13:04 UTC)
Expired: Sep 26, 2008, 1:00 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 13:08 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 1.1 hours before the alert went out and 270 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: 416 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 471 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 220 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

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 Philadelphia/Mount Holly wrote its last area forecast discussion before this areal flood advisory went out at Sep 25, 4:18 PM EDT, 16 hours 46 minutes earlier.

Area forecast discussion, Sep 25, 4:18 PM EDT, 16 hours 46 minutes before

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Hazardous weather outlook, Sep 25, 3:46 PM EDT, 17 hours 18 minutes before

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</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.
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        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 Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 25, 9:38 PM EDT	Coastal Flood Statement	PHI	Atlantic, Cape May, Cumberland	11 hr
Sep 25, 9:38 PM EDT	Coastal Flood Advisory	PHI	Burlington, Middlesex, Monmouth, Ocean	11 hr
Sep 25, 11:03 PM EDT	Small Craft Advisory	PHI		53 hr
Sep 26, 2:02 AM EDT	Small Craft Advisory	PHI		50 hr

Nearby

Areal Flood Advisories in New Jersey, 2008 Every areal flood advisory in 2008

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.