Alert archive / Virginia / River Flood Warnings in 2019

River Flood Warning 16, NWS Blacksburg, VA

March 21, 2019Halifax County, Virginia

NWS Blacksburg, VA issued this river flood warning at Mar 21, 2019, 9:10 PM EDT for Halifax County, Virginia. It took effect at Mar 22, 2019, 2:00 AM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Mar 21, 2019, 9:10 PM EDT (01:10 UTC)
In effect from: Mar 22, 2019, 2:00 AM EDT
Expired: Mar 22, 2019, 6:23 AM EDT
In force: 4 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: Minor

County Halifax County, VA

The radar

The Roanoke radar (KFCX), 122 km from the middle of the area, began a volume at 01:10 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 river

Written for the forecast point Dan River at South Boston (SBNV2). The gauge peaked at 18.59 ft at Mar 22, 2019, 4:00 AM EDT.

Action stage: 18 ft
Minor stage: 22 ft
Moderate stage: 29 ft
Major stage: 34 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02076000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at Mar 21, 7:40 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Mar 21, 7:40 PM EDT, 1 hour 30 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, Mar 21, 3:16 PM EDT, 5 hours 54 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

Special weather statement, Mar 21, 5:09 PM EDT, 4 hours 1 minute 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 Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 22, 3:30 AM EDT	Wind Advisory	RNK	Alleghany, Amherst, Bath, Bedford, Bland, Botetourt and 21 more	24 hr
Mar 22, 2:09 PM EDT	High Wind Warning	RNK	Carroll, Floyd, Grayson, City of Galax	14 hr
Mar 22, 3:25 PM EDT	Special Weather Statement	RNK	Bath	65 min
Mar 22, 3:59 PM EDT	Special Weather Statement	RNK	Alleghany, Amherst, Bath, Botetourt, Craig, Giles and 4 more	61 min
Mar 22, 4:54 PM EDT	Special Weather Statement	RNK	Craig, Roanoke, City of Roanoke, City of Salem	66 min
Mar 22, 5:08 PM EDT	Special Weather Statement	RNK	Buckingham	52 min
Mar 22, 5:41 PM EDT	Special Weather Statement	RNK	Campbell, Charlotte, Franklin, Halifax	64 min
Mar 22, 6:20 PM EDT	Special Weather Statement	RNK	Carroll, Floyd, Franklin, Grayson, Halifax, Henry and 7 more	40 min

Nearby

River Flood Warnings in Virginia, 2019 Every river flood warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.