Alert archive / California / Flash Flood Warnings in 2022

Flash Flood Warning 158, NWS Phoenix, AZ

August 14, 2022Riverside County, California

NWS Phoenix, AZ issued this flash flood warning at Aug 14, 2022, 8:16 PM PDT for Riverside County, California. It was in force for 4 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: Aug 14, 2022, 8:16 PM PDT (03:16 UTC)
Expired: Aug 15, 2022, 12:04 AM PDT
In force: 4 hr
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Riverside County, CA

The radar

The San Diego radar (KNKX), 134 km from the middle of the area, began a volume at 03:19 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Aug 14, 7:32 PM PDT, 44 minutes before

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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>
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Local storm report, Aug 14, 7:44 PM PDT, 32 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, Aug 14, 7:50 PM PDT, 26 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, Aug 14, 7:51 PM PDT, 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>

Local storm report, Aug 14, 7:56 PM PDT, 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>

Local storm report, Aug 14, 8:09 PM PDT, 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>

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 5:05 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	4 hr
Aug 14, 5:14 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Pinal	46 min
Aug 14, 5:18 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	3 hr
Aug 14, 5:19 PM PDT	Special Weather Statement	PSR	La Paz	56 min
Aug 14, 5:22 PM PDT	Dust Storm Warning	PSR	Pinal	53 min
Aug 14, 5:33 PM PDT	Special Weather Statement	PSR	Maricopa	57 min
Aug 14, 5:46 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 14, 5:48 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa	4 hr
Aug 14, 5:58 PM PDT	Special Weather Statement	PSR	Pinal	47 min
Aug 14, 6:08 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Pinal	3 hr
Aug 14, 6:14 PM PDT	Special Weather Statement	PSR	La Paz	61 min
Aug 14, 6:15 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 14, 6:30 PM PDT	Severe Thunderstorm Warning	PSR	Maricopa, Yuma	45 min
Aug 14, 6:31 PM PDT	Special Weather Statement	PSR	Maricopa	44 min
Aug 14, 6:35 PM PDT	Dust Storm Warning	PSR	La Paz, Yuma	55 min
Aug 14, 6:46 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Maricopa, Yuma	3 hr
Aug 14, 6:53 PM PDT	Dust Storm Warning	PSR	Yuma	67 min
Aug 14, 7:12 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	4 hr
Aug 14, 7:18 PM PDT	Dust Storm Warning	PSR	La Paz, Yuma	57 min
Aug 14, 7:19 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz	3 hr
Aug 14, 7:21 PM PDT	Dust Storm Warning	PSR	La Paz	54 min
Aug 14, 7:40 PM PDT	Flash Flood Warning Considerable damage threat	PSR	La Paz, Yuma	3 hr
Aug 14, 7:50 PM PDT	Special Weather Statement	PSR	La Paz	25 min
Aug 14, 7:51 PM PDT	Special Weather Statement	PSR		24 min
Aug 14, 8:01 PM PDT	Dust Storm Warning	PSR	Yuma	59 min
Aug 14, 8:56 PM PDT	Special Weather Statement	PSR	Yuma	64 min
Aug 14, 9:46 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Yuma	4 hr
Aug 15, 2:50 AM PDT	Special Weather Statement	PSR		25 min
Aug 15, 4:41 PM PDT	Special Weather Statement	PSR	Gila	49 min
Aug 14, 5:53 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Riverside	4 hr
Aug 15, 1:52 PM PDT	Special Weather Statement	PSR	Riverside	53 min
Aug 15, 2:33 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Riverside	4 hr
Aug 15, 2:36 PM PDT	Special Weather Statement	PSR	Riverside	39 min
Aug 15, 2:45 PM PDT	Severe Thunderstorm Warning	PSR	Riverside, San Bernardino	45 min
Aug 15, 3:00 PM PDT	Flash Flood Warning Considerable damage threat	PSR	Riverside, San Bernardino	4 hr
Aug 15, 3:30 PM PDT	Special Weather Statement	PSR	Riverside	45 min
Aug 15, 4:43 PM PDT	Special Weather Statement	PSR	Riverside	47 min
Aug 15, 4:51 PM PDT	Severe Thunderstorm Warning	PSR	Riverside	39 min

Nearby

Flash Flood Warnings in California, 2022 Every flash flood warning in 2022

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.