Alert archive / Alabama / Areal Flood Advisories in 2021

Areal Flood Advisory 27, NWS Mobile, AL

May 5, 2021Mobile County, Alabama

NWS Mobile, AL issued this areal flood advisory at May 5, 2021, 1:24 PM CDT for Mobile County, Alabama. It was in force for 96 min.

The area

The counties it named.

The facts

Issued: May 5, 2021, 1:24 PM CDT (18:24 UTC)
Expired: May 5, 2021, 3:00 PM CDT
In force: 96 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Mobile County, AL

The radar

The Mobile radar (KMOB), 4 km from the middle of the area, began a volume at 18:24 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.4 hours before the alert went out and 152 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: 6 J/kg
Mixed-layer CIN: -305 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 260 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at May 5, 12:08 PM CDT, 1 hour 16 minutes earlier.

Area forecast discussion, May 5, 12:08 PM CDT, 1 hour 16 minutes before

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In the hours before

Local storm report, May 5, 8:40 AM CDT, 4 hours 44 minutes before

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      <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">
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Local storm report, May 5, 8:54 AM CDT, 4 hours 30 minutes before

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      <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.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, May 5, 9:33 AM CDT, 3 hours 51 minutes before

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      <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>
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Local storm report, May 5, 9:38 AM CDT, 3 hours 46 minutes before

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<head>
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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.
      </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>
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Local storm report, May 5, 9:47 AM CDT, 3 hours 37 minutes before

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<head>
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<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, May 5, 12:52 PM CDT, 32 minutes before

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<html lang="en">
<head>
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  <title>Service Notice</title>
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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.
      </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 Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 7:26 PM CDT	Special Marine Warning	MOB		2 hr
May 4, 7:28 PM CDT	Special Weather Statement	MOB	Covington, Escambia	62 min
May 4, 7:33 PM CDT	Special Weather Statement	MOB	Baldwin, Mobile	57 min
May 4, 7:44 PM CDT	Severe Thunderstorm Warning	MOB	Covington, Crenshaw	32 min
May 4, 8:15 PM CDT	River Flood Warning	MOB	Baldwin	29 hr
May 4, 8:20 PM CDT	Areal Flood Advisory	MOB	Mobile	6 hr
May 4, 8:28 PM CDT	Areal Flood Advisory	MOB	Baldwin	6 hr
May 4, 8:36 PM CDT	Flash Flood Warning	MOB	Mobile	6 hr
May 4, 9:41 PM CDT	Special Marine Warning	MOB		94 min
May 5, 12:35 AM CDT	Areal Flood Advisory	MOB	Baldwin	4 hr
May 5, 1:50 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
May 5, 2:27 AM CDT	River Flood Warning	MOB	Baldwin	23 hr
May 5, 2:30 AM CDT	River Flood Warning	MOB	Baldwin	22 hr
May 5, 2:50 AM CDT	Special Marine Warning	MOB		85 min
May 5, 6:29 AM CDT	Special Weather Statement	MOB	Baldwin	46 min
May 5, 7:07 AM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
May 5, 7:19 AM CDT	Special Marine Warning	MOB		86 min
May 5, 7:43 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
May 5, 8:00 AM CDT	River Flood Warning	MOB	Clarke, Monroe, Wilcox	7 days
May 5, 8:00 AM CDT	River Flood Warning	MOB	Dallas, Monroe, Wilcox	4 days
May 5, 8:31 AM CDT	Special Marine Warning	MOB		59 min
May 5, 8:57 AM CDT	Flash Flood Warning	MOB	Mobile	4 hr
May 5, 12:02 PM CDT	Special Marine Warning	MOB		88 min
May 5, 1:26 PM CDT	Special Marine Warning	MOB		64 min
May 5, 1:44 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
May 4, 8:10 PM CDT	River Flood Warning	MOB	Okaloosa	48 hr
May 4, 8:52 PM CDT	Special Weather Statement	MOB	Escambia, Okaloosa, Santa Rosa	68 min
May 4, 9:49 PM CDT	Areal Flood Advisory	MOB	Escambia, Santa Rosa	4 hr
May 5, 2:45 AM CDT	Areal Flood Advisory	MOB	Santa Rosa	4 hr
May 5, 8:35 AM CDT	Special Weather Statement	MOB	Jackson	40 min

Nearby

Areal Flood Advisories in Alabama, 2021 Every areal flood advisory in 2021

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.