Alert archive / Alabama / Areal Flood Advisories in 2021
Areal Flood Advisory 182, NWS Birmingham, AL
NWS Birmingham, AL issued this areal flood advisory at Oct 5, 2021, 7:53 AM CDT for Bibb County, Hale County, Tuscaloosa County, Alabama. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Oct 5, 2021, 7:53 AM CDT (12:53 UTC)
- Expired
- Oct 5, 2021, 11:09 AM CDT
- In force
- 3 hr
- Issued by
- NWS Birmingham, AL
- Area
- Storm-based polygon
Counties Bibb County, AL, Hale County, AL, Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 64 km from the middle of the area, began a volume at 12:55 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, 0.9 hours before the alert went out and 260 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.
- Mixed-layer CAPE
- 1228 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 743 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Birmingham, AL wrote its last area forecast discussion before this areal flood advisory went out at Oct 5, 6:46 AM CDT, 1 hour 7 minutes earlier.
Area forecast discussion, Oct 5, 6:46 AM CDT, 1 hour 7 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, Oct 5, 4:16 AM CDT, 3 hours 37 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 Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 11:46 PM CDT | Areal Flood Advisory | BMX | Chambers, Lee | 3 hr |
| Oct 5, 12:38 AM CDT | Flash Flood Warning | BMX | Chambers, Lee | 3 hr |
| Oct 5, 3:27 AM CDT | Areal Flood Advisory | BMX | Barbour, Bullock, Lee, Macon, Pike, Russell | 3 hr |
| Oct 5, 5:23 AM CDT | Flash Flood Warning | BMX | Chambers, Lee | 5 hr |
| Oct 5, 5:27 AM CDT | Areal Flood Advisory | BMX | Jefferson, Shelby | 3 hr |
| Oct 5, 6:25 AM CDT | Flash Flood Warning | BMX | Shelby | 2 hr |
| Oct 5, 3:49 PM CDT | Areal Flood Advisory | BMX | Marion | 116 min |
| Oct 5, 4:09 PM CDT | Areal Flood Advisory | BMX | Tuscaloosa | 3 hr |
| Oct 5, 5:25 PM CDT | Special Weather Statement | BMX | Lamar | 35 min |
| Oct 5, 6:43 PM CDT | Areal Flood Advisory | BMX | Jefferson, Shelby | 6 hr |
Nearby
Areal Flood Advisories in Alabama, 2021Every 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.