Alert archive / Mississippi / Areal Flood Warnings in 2017

Areal Flood Warning 9, NWS Jackson, MS

July 24, 2017Lincoln County, Mississippi

NWS Jackson, MS issued this areal flood warning at Jul 24, 2017, 1:59 PM CDT for Lincoln County, Mississippi. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 24, 2017, 1:59 PM CDT (18:59 UTC)
Expired: Jul 24, 2017, 5:00 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

County Lincoln County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 94 km from the middle of the area, began a volume at 19:00 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

Jackson, MS (KJAN), launched 12:00Z, 7.0 hours before the alert went out and 94 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: 279 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 35 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 areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, MS wrote its last area forecast discussion before this areal flood warning went out at Jul 24, 12:40 PM CDT, 1 hour 19 minutes earlier.

Area forecast discussion, Jul 24, 12:40 PM CDT, 1 hour 19 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, Jul 24, 11:46 AM CDT, 2 hours 13 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, Jul 24, 1:11 PM CDT, 48 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>

Local storm report, Jul 24, 1:12 PM CDT, 47 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>

Local storm report, Jul 24, 1:14 PM CDT, 45 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>

Local storm report, Jul 24, 1:21 PM CDT, 38 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, Jul 24, 1:35 PM CDT, 24 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, Jul 24, 1:40 PM CDT, 19 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 Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 24, 6:26 AM CDT	Special Weather Statement	JAN	Lamar	64 min
Jul 24, 7:14 AM CDT	Flash Flood Warning	JAN	Forrest	3 hr
Jul 24, 10:42 AM CDT	Special Weather Statement	JAN	Copiah, Jefferson Davis, Lawrence, Lincoln	63 min
Jul 24, 10:57 AM CDT	Flash Flood Warning	JAN	Forrest, Lamar	3 hr
Jul 24, 11:01 AM CDT	Flash Flood Warning	JAN	Copiah, Lincoln	3 hr
Jul 24, 11:22 AM CDT	Flash Flood Watch	JAN	Copiah, Covington, Forrest, Jefferson Davis, Jones, Lamar and 4 more	8 hr
Jul 24, 12:20 PM CDT	Special Weather Statement	JAN	Rankin	55 min
Jul 24, 12:35 PM CDT	Special Weather Statement	JAN	Jefferson Davis, Lawrence	55 min
Jul 24, 12:52 PM CDT	Flash Flood Warning	JAN	Rankin	98 min
Jul 24, 1:35 PM CDT	Special Weather Statement	JAN	Franklin, Lincoln	55 min
Jul 24, 1:40 PM CDT	Special Weather Statement	JAN	Claiborne	50 min
Jul 24, 1:57 PM CDT	Flash Flood Warning	JAN	Forrest, Lamar	3 hr
Jul 24, 2:31 PM CDT	Special Weather Statement	JAN	Marion	44 min
Jul 24, 2:37 PM CDT	Special Weather Statement	JAN	Claiborne	38 min
Jul 24, 3:58 PM CDT	Special Weather Statement	JAN	Yazoo	32 min
Jul 24, 4:13 PM CDT	Special Weather Statement	JAN	Holmes	32 min
Jul 24, 4:33 PM CDT	Special Weather Statement	JAN	Attala	27 min
Jul 24, 4:37 PM CDT	Special Weather Statement	JAN	Attala	23 min
Jul 24, 4:50 PM CDT	Special Weather Statement	JAN	Sharkey	25 min
Jul 24, 4:53 PM CDT	Special Weather Statement	JAN	Holmes	37 min
Jul 24, 4:58 PM CDT	Special Weather Statement	JAN	Sunflower	32 min
Jul 24, 5:21 PM CDT	Flash Flood Warning	JAN	Attala, Holmes	3 hr
Jul 24, 5:25 PM CDT	Special Weather Statement	JAN	Sharkey	35 min
Jul 24, 5:36 PM CDT	Special Weather Statement	JAN	Leflore	24 min
Jul 24, 5:45 PM CDT	Special Weather Statement	JAN	Noxubee	30 min
Jul 24, 5:58 PM CDT	Special Weather Statement	JAN	Webster	32 min
Jul 24, 6:19 PM CDT	Special Weather Statement	JAN	Oktibbeha	26 min
Jul 24, 6:22 PM CDT	Severe Thunderstorm Warning	JAN	Oktibbeha	24 min
Jul 24, 6:30 PM CDT	Special Weather Statement	JAN	Sharkey	30 min
Jul 24, 5:49 PM CDT	Special Weather Statement	JAN	East Carroll	26 min

Nearby

Areal Flood Warnings in Mississippi, 2017 Every areal flood warning in 2017

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.