Alert archive / Arizona / Areal Flood Advisories in 2021

Areal Flood Advisory 113, NWS Phoenix, AZ

August 11, 2021Maricopa County, Pinal County, Arizona

NWS Phoenix, AZ issued this areal flood advisory at Aug 11, 2021, 7:46 AM MST for Maricopa County, Pinal County, Arizona. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Aug 11, 2021, 7:46 AM MST (14:46 UTC)
Expired: Aug 11, 2021, 11:00 AM MST
In force: 3 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon

Counties Maricopa County, AZ, Pinal County, AZ

The radar

The Phoenix radar (KIWA), 29 km from the middle of the area, began a volume at 14:46 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.

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 Phoenix, AZ wrote its last area forecast discussion before this areal flood advisory went out at Aug 11, 5:11 AM MST, 2 hours 35 minutes earlier.

Area forecast discussion, Aug 11, 5:11 AM MST, 2 hours 35 minutes before

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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.
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      <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.
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    </section>
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In the hours before

Local storm report, Aug 11, 5:17 AM MST, 2 hours 29 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, Aug 11, 5:22 AM MST, 2 hours 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>

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 10, 5:23 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 10, 5:35 PM MST	Special Weather Statement	PSR		40 min
Aug 10, 5:51 PM MST	Areal Flood Advisory	PSR	La Paz	3 hr
Aug 10, 5:55 PM MST	Special Weather Statement	PSR	La Paz	50 min
Aug 10, 6:30 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	45 min
Aug 10, 6:36 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa	4 hr
Aug 10, 7:15 PM MST	Dust Storm Warning	PSR	La Paz, Yuma	60 min
Aug 10, 7:26 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Maricopa, Yuma	49 min
Aug 10, 7:33 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	4 hr
Aug 10, 7:43 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal, Yuma	62 min
Aug 10, 8:18 PM MST	Severe Thunderstorm Warning	PSR	La Paz, Yuma	57 min
Aug 10, 8:38 PM MST	Dust Storm Warning	PSR	La Paz, Yuma	52 min
Aug 10, 9:08 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	6 hr
Aug 10, 9:12 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	6 hr
Aug 10, 9:23 PM MST	Special Weather Statement	PSR	Yuma	97 min
Aug 10, 9:42 PM MST	Dust Storm Warning	PSR	Yuma	93 min
Aug 10, 10:35 PM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Maricopa, Yuma	6 hr
Aug 11, 12:01 AM MST	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	5 hr
Aug 11, 2:00 AM MST	Areal Flood Advisory	PSR	Gila	3 hr
Aug 11, 3:29 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 4:33 AM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	3 hr
Aug 11, 6:06 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 6:11 AM MST	Areal Flood Advisory	PSR	Maricopa, Pinal	3 hr
Aug 11, 6:15 AM MST	Areal Flood Advisory	PSR	Gila, Maricopa	3 hr
Aug 11, 7:30 AM MST	Flash Flood Warning Considerable damage threat	PSR	Gila, Maricopa	6 hr
Aug 11, 8:12 AM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	6 hr
Aug 11, 9:13 AM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 1:01 PM MST	Special Weather Statement	PSR	Yuma	59 min
Aug 11, 1:29 PM MST	Areal Flood Warning	PSR	Maricopa	6 hr
Aug 11, 1:43 PM MST	Areal Flood Warning	PSR	Gila	4 hr
Aug 11, 1:49 PM MST	Areal Flood Advisory	PSR	Yuma	3 hr
Aug 11, 2:01 PM MST	Dust Storm Advisory	PSR	Yuma	59 min
Aug 11, 2:17 PM MST	Severe Thunderstorm Warning	PSR	Yuma	43 min
Aug 11, 3:02 PM MST	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Aug 11, 3:11 PM MST	Special Weather Statement	PSR		64 min
Aug 11, 3:29 PM MST	Special Weather Statement	PSR	Maricopa	46 min
Aug 11, 3:34 PM MST	Special Weather Statement	PSR		56 min
Aug 11, 3:44 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 3:47 PM MST	Areal Flood Advisory	PSR	Maricopa	14 min
Aug 11, 3:50 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 4:01 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 11, 4:33 PM MST	Areal Flood Advisory	PSR	Maricopa	3 hr
Aug 11, 4:44 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	61 min
Aug 11, 4:56 PM MST	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 10, 9:54 PM MST	Flash Flood Warning Considerable damage threat	PSR	Riverside	86 min
Aug 10, 11:16 PM MST	Special Weather Statement	PSR	Imperial	74 min

Nearby

Areal Flood Advisories in Arizona, 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; radar from the NEXRAD Level II archive.