Alert archive / Virginia / Special Weather Statements in 2014

Special Weather Statement, NWS Blacksburg, VA

April 30, 2014City of Martinsville, Virginia; Rockingham County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Apr 30, 2014, 4:13 AM EDT for City of Martinsville, Virginia; Rockingham County, North Carolina. It was in force for 92 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
Apr 30, 2014, 4:13 AM EDT (08:13 UTC)
Expired
Apr 30, 2014, 5:45 AM EDT
In force
92 min
Issued by
NWS Blacksburg, VA

Counties Rockingham County, NC, City of Martinsville, VA

The radar

The Roanoke radar (KFCX), 67 km from the middle of the area, began a volume at 08:15 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 8.2 hours before the alert went out and 47 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, Greensboro/Hi Pt, NC at 00:00Z on 2014-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2014-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 369 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
452 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
369 m²/s²
0-3 km storm-relative helicity
416 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

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 Blacksburg, VA wrote its last area forecast discussion before this special weather statement went out at Apr 29, 7:54 PM EDT, 8 hours 19 minutes earlier.

Area forecast discussion, Apr 29, 7:54 PM EDT, 8 hours 19 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.
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      <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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Hazardous weather outlook, Apr 29, 4:52 PM EDT, 11 hours 21 minutes before
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<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 Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 30, 4:47 AM EDTAreal Flood AdvisoryRNKHenry, Pittsylvania6 hr
Apr 30, 5:28 AM EDTSpecial Weather StatementRNKHalifax62 min
Apr 30, 6:35 AM EDTSpecial Weather StatementRNKHalifax40 min
Apr 30, 11:33 AM EDTSpecial Weather StatementRNKHalifax57 min
Apr 30, 11:48 AM EDTAreal Flood AdvisoryRNKCharlotte117 min
Apr 30, 12:00 PM EDTSpecial Weather StatementRNKHalifax30 min
Apr 30, 12:11 PM EDTAreal Flood AdvisoryRNKHalifax, Pittsylvania109 min
Apr 30, 12:55 PM EDTSpecial Weather StatementRNKCharlotte35 min
Apr 30, 1:29 PM EDTSpecial Weather StatementRNKCharlotte31 min
Apr 30, 1:47 PM EDTAreal Flood AdvisoryRNKCharlotte118 min
Apr 30, 2:40 PM EDTSpecial Weather StatementRNKCity of Danville50 min
Apr 30, 2:47 PM EDTAreal Flood AdvisoryRNKHalifax, Pittsylvania, City of Danville3 hr
Apr 30, 3:08 PM EDTFlash Flood WarningRNKPittsylvania, City of Danville3 hr
Apr 30, 3:16 PM EDTSpecial Weather StatementRNKHalifax59 min
Apr 30, 3:26 PM EDTFlash Flood WarningRNKCampbell, Charlotte, Halifax3 hr
Apr 30, 3:51 PM EDTAreal Flood AdvisoryRNKAppomattox, Buckingham3 hr
Apr 30, 4:23 PM EDTSpecial Weather StatementRNKHalifax, City of Danville52 min
Apr 30, 6:54 PM EDTAreal Flood WarningRNKAppomattox, Buckingham, Campbell, Charlotte3 hr
Apr 30, 3:58 PM EDTAreal Flood AdvisoryRNKCaswell2 hr

Nearby

Special Weather Statements in Virginia, 2014Special Weather Statements in North Carolina, 2014Every special weather statement in 2014

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.