Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Wakefield, VA

July 29, 2018Hertford County, North Carolina

NWS Wakefield, VA issued this special weather statement at Jul 29, 2018, 4:13 PM EDT for Hertford County, North Carolina. It was in force for 62 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 29, 2018, 4:13 PM EDT (20:13 UTC)
Expired
Jul 29, 2018, 5:15 PM EDT
In force
62 min
Issued by
NWS Wakefield, VA

County Hertford County, NC

The radar

The Norfolk radar (KAKQ), 79 km from the middle of the area, began a volume at 20:15 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

Newport, NC (KMHX), launched 12:00Z, 8.2 hours before the alert went out and 167 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-pSkew-T log-p diagram, Newport, NC at 12:00Z on 2018-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1563 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2018-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1563 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
578 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

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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 Wakefield, VA wrote its last area forecast discussion before this special weather statement went out at Jul 28, 7:46 PM EDT, 20 hours 27 minutes earlier.

Area forecast discussion, Jul 28, 7:46 PM EDT, 20 hours 27 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 Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 28, 8:06 PM EDTSpecial Weather StatementAKQBrunswick, Greensville, City of Emporia39 min
Jul 28, 9:05 PM EDTSpecial Weather StatementAKQGreensville, City of Emporia40 min
Jul 28, 9:44 PM EDTSpecial Weather StatementAKQGreensville46 min
Jul 28, 10:18 PM EDTSpecial Weather StatementAKQCharles City, Prince George, City of Hopewell, City of Petersburg42 min
Jul 28, 10:54 PM EDTSpecial Weather StatementAKQCharles City, James City, City of Williamsburg51 min
Jul 29, 12:20 AM EDTSpecial Weather StatementAKQGloucester, York, City of Newport News, City of Williamsburg40 min
Jul 29, 4:13 AM EDTSpecial Marine WarningAKQ62 min
Jul 29, 6:13 PM EDTSpecial Weather StatementAKQDinwiddie47 min
Jul 28, 10:20 PM EDTSpecial Weather StatementAKQNorthampton40 min
Jul 29, 1:28 PM EDTSpecial Weather StatementAKQCamden, Currituck, Pasquotank, Perquimans47 min
Jul 29, 2:14 PM EDTSpecial Weather StatementAKQCamden, Currituck, Pasquotank, Perquimans46 min
Jul 29, 2:28 PM EDTAreal Flood AdvisoryAKQCamden, Currituck, Pasquotank3 hr
Jul 29, 3:00 PM EDTSpecial Weather StatementAKQGates45 min
Jul 29, 3:59 PM EDTSpecial Weather StatementAKQCurrituck46 min
Jul 29, 7:09 PM EDTSpecial Weather StatementAKQHertford, Northampton51 min

Nearby

Special Weather Statements in North Carolina, 2018Every special weather statement in 2018

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.