Alert archive / North Carolina / River Flood Warnings in 2020

River Flood Warning 24, NWS Raleigh, NC

May 20, 2020Chatham County, North Carolina

NWS Raleigh, NC issued this river flood warning at May 20, 2020, 9:19 PM EDT for Chatham County, North Carolina. It took effect at May 21, 2020, 5:44 AM EDT. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued: May 20, 2020, 9:19 PM EDT (01:19 UTC)
In effect from: May 21, 2020, 5:44 AM EDT
Expired: May 23, 2020, 9:09 AM EDT
In force: 51 hr
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Flood severity: Minor

County Chatham County, NC

The radar

The Raleigh/Durham radar (KRAX), 69 km from the middle of the area, began a volume at 01:20 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 Haw River near Bynum (BYNN7). The gauge peaked at 13.63 ft at May 22, 2020, 5:00 AM EDT.

Action stage: 10 ft
Minor stage: 11 ft
Moderate stage: 15 ft
Major stage: 17 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02096960, 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 Raleigh, NC wrote its last area forecast discussion before this river flood warning went out at May 20, 8:59 PM EDT, 20 minutes earlier.

Area forecast discussion, May 20, 8:59 PM EDT, 20 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, May 20, 3:51 PM EDT, 5 hours 28 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, May 20, 4:54 PM EDT, 4 hours 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>

Special weather statement, May 20, 6:04 PM EDT, 3 hours 15 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 Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 20, 9:11 PM EDT	River Flood Warning	RAH	Anson, Stanly	48 hr
May 20, 9:19 PM EDT	River Flood Warning	RAH	Alamance	55 hr
May 20, 10:58 PM EDT	Areal Flood Advisory	RAH	Cumberland, Harnett, Hoke, Moore, Sampson	6 hr
May 21, 6:18 AM EDT	River Flood Warning	RAH	Chatham, Lee	31 hr
May 21, 7:17 AM EDT	Areal Flood Advisory	RAH	Guilford	5 hr
May 21, 8:30 AM EDT	Flash Flood Warning Considerable damage threat	RAH	Anson, Davidson, Forsyth, Guilford, Montgomery, Randolph and 2 more	5 hr
May 21, 9:58 AM EDT	Areal Flood Advisory	RAH	Edgecombe, Johnston, Nash, Sampson, Wayne, Wilson	3 hr
May 21, 10:03 AM EDT	Areal Flood Advisory	RAH	Alamance, Chatham, Durham, Harnett, Lee, Moore and 2 more	3 hr
May 21, 12:18 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Stanly	57 min
May 21, 1:15 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Davidson, Montgomery, Randolph, Richmond, Stanly	60 min
May 21, 1:32 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Anson, Montgomery, Richmond, Stanly	11 hr
May 21, 1:50 PM EDT	River Flood Warning	RAH	Davidson, Davie	62 hr
May 21, 2:19 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Montgomery, Richmond, Stanly	56 min
May 21, 3:09 PM EDT	Special Weather Statement	RAH	Cumberland, Harnett, Hoke, Lee	66 min
May 21, 3:26 PM EDT	Special Weather Statement	RAH	Anson, Stanly	64 min
May 21, 3:32 PM EDT	Special Weather Statement	RAH	Hoke	58 min
May 21, 3:41 PM EDT	Tornado Warning	RAH	Cumberland, Harnett, Hoke, Moore	34 min
May 21, 4:36 PM EDT	Special Weather Statement	RAH	Hoke	54 min
May 21, 5:43 PM EDT	Special Weather Statement	RAH	Hoke, Moore	62 min
May 21, 6:16 PM EDT	Special Weather Statement	RAH	Cumberland	44 min
May 21, 6:42 PM EDT	Special Weather Statement	RAH	Harnett	33 min
May 21, 6:48 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett	24 min
May 21, 7:06 PM EDT	Special Weather Statement	RAH	Cumberland	54 min
May 21, 7:27 PM EDT	Special Weather Statement	RAH	Harnett, Lee	63 min
May 21, 7:34 PM EDT	Special Weather Statement	RAH	Lee	26 min
May 21, 7:37 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	38 min
May 21, 7:56 PM EDT	Special Weather Statement	RAH	Johnston	49 min

Nearby

River Flood Warnings in North Carolina, 2020 Every river flood warning in 2020

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.