Alert archive / North Carolina / Flood Watches in 2018

Flood Watch 4, NWS Greenville-Spartanburg, SC

November 13, 201824 counties in North Carolina; 8 counties in South Carolina; 6 counties in Georgia

NWS Greenville-Spartanburg, SC issued this flood watch at Nov 13, 2018, 3:11 PM EST for 24 counties in North Carolina; 8 counties in South Carolina; 6 counties in Georgia. It took effect at Nov 14, 2018, 12:00 PM EST. It was in force for 31 hr.

The area

The counties it named.

The facts

Issued: Nov 13, 2018, 3:11 PM EST (20:11 UTC)
In effect from: Nov 14, 2018, 12:00 PM EST
Expired: Nov 15, 2018, 7:00 PM EST
In force: 31 hr
Issued by: NWS Greenville-Spartanburg, SC
Flood severity: None

All 38 counties

Elbert County, GA, Franklin County, GA, Habersham County, GA, Hart County, GA, Rabun County, GA, Stephens County, GA, Alexander County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Catawba County, NC, Cleveland County, NC, Davie County, NC, Gaston County, NC, Henderson County, NC, Iredell County, NC, Jackson County, NC, Lincoln County, NC, Macon County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Polk County, NC, Rowan County, NC, Rutherford County, NC, Transylvania County, NC, Union County, NC, Yancey County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Greenwood County, SC, Laurens County, SC, Union County, SC, York County, SC

The radar

The Greer radar (KGSP), 41 km from the middle of the area, began a volume at 20:11 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.2 hours before the alert went out and 309 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 413 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 136 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 flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flood watch went out at Nov 13, 2:46 PM EST, 25 minutes earlier.

Area forecast discussion, Nov 13, 2:46 PM EST, 25 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, Nov 13, 4:01 AM EST, 11 hours 10 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>

In the hours before

Local storm report, Nov 13, 1:55 PM EST, 1 hour 16 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>

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 12, 7:56 PM EST	Special Weather Statement	GSP	Catawba, Cleveland, Gaston, Lincoln, Rowan, Rutherford	2 hr
Nov 12, 8:20 PM EST	Areal Flood Advisory	GSP	Cleveland, Gaston, Lincoln, Polk, Rutherford	3 hr
Nov 12, 9:13 PM EST	River Flood Warning	GSP	Henderson, Transylvania	6 hr
Nov 12, 9:36 PM EST	Areal Flood Advisory	GSP	Mecklenburg	114 min
Nov 12, 9:41 PM EST	Special Weather Statement	GSP	Union	2 hr
Nov 12, 10:24 PM EST	Areal Flood Warning	GSP	Cabarrus, Mecklenburg	3 hr
Nov 12, 10:53 PM EST	Areal Flood Advisory	GSP	Cabarrus, Union	4 hr
Nov 13, 12:37 AM EST	River Flood Warning	GSP	Gaston	31 hr
Nov 13, 1:15 AM EST	Areal Flood Advisory	GSP	Cabarrus, Mecklenburg	5 hr
Nov 13, 2:38 AM EST	Areal Flood Advisory	GSP	Cabarrus, Union	4 hr
Nov 13, 7:22 AM EST	Areal Flood Warning	GSP	Cabarrus, Union	3 hr
Nov 13, 3:25 PM EST	Winter Storm Watch	GSP	Alexander, Avery, Buncombe, Burke, Caldwell, Henderson and 6 more	13 hr
Nov 12, 7:38 PM EST	Areal Flood Warning	GSP	Greenville, Spartanburg	4 hr
Nov 12, 8:02 PM EST	Special Weather Statement	GSP	Anderson	118 min
Nov 12, 8:38 PM EST	Areal Flood Warning	GSP	Oconee, Pickens	4 hr
Nov 12, 11:22 PM EST	Areal Flood Advisory	GSP	Greenville, Spartanburg	8 hr
Nov 13, 12:31 AM EST	Areal Flood Advisory	GSP	Oconee, Pickens	4 hr
Nov 13, 7:18 AM EST	Areal Flood Advisory	GSP	Greenville, Spartanburg	117 min
Nov 12, 7:47 PM EST	Special Weather Statement	GSP	Franklin, Hart, Stephens	118 min
Nov 12, 8:12 PM EST	Areal Flood Warning	GSP	Habersham, Rabun	4 hr
Nov 12, 8:24 PM EST	Areal Flood Advisory	GSP	Stephens	3 hr
Nov 13, 12:13 AM EST	Areal Flood Warning	GSP	Habersham	3 hr
Nov 13, 2:58 AM EST	Areal Flood Advisory	GSP	Habersham	4 hr

Nearby

Flood Watches in North Carolina, 2018 Flood Watches in South Carolina, 2018 Flood Watches in Georgia, 2018 Every flood watch 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.