Alert archive / California / River Flood Warnings in 2010

River Flood Warning 7, NWS San Diego, CA

December 22, 2010San Diego County, California

NWS San Diego, CA issued this river flood warning at Dec 22, 2010, 4:07 AM PST for San Diego County, California. It took effect at Dec 22, 2010, 4:52 AM PST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Dec 22, 2010, 4:07 AM PST (12:07 UTC)
In effect from: Dec 22, 2010, 4:52 AM PST
Expired: Dec 22, 2010, 5:29 PM PST
In force: 13 hr
Issued by: NWS San Diego, CA
Flood severity: Major

County San Diego County, CA

The radar

The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 12:09 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 river

Written for the forecast point Santa Margarita River at Ysidora (YDRC1). The gauge peaked at 6.28 ft at Dec 23, 2010, 12:00 PM PST.

Action stage: 10.85 ft
Minor stage: 12.5 ft
Moderate stage: 13.78 ft
Major stage: 16.29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 11046000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

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

NWS San Diego, CA wrote its last area forecast discussion before this river flood warning went out at Dec 21, 9:00 PM PST, 7 hours 7 minutes earlier.

Area forecast discussion, Dec 21, 9:00 PM PST, 7 hours 7 minutes before

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Hazardous weather outlook, Dec 21, 4:00 PM PST, 12 hours 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 San Diego, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 21, 11:18 PM PST	Areal Flood Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	6 hr
Dec 22, 4:59 AM PST	Areal Flood Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	8 hr
Dec 22, 7:34 AM PST	Flash Flood Warning	SGX	Riverside, San Bernardino	116 min
Dec 22, 9:27 AM PST	Flash Flood Warning	SGX	Orange, Riverside, San Bernardino, San Diego	2 hr
Dec 22, 12:46 PM PST	Areal Flood Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	6 hr
Dec 22, 3:19 PM PST	Flash Flood Warning	SGX	Riverside, San Bernardino	116 min
Dec 22, 3:43 PM PST	Severe Thunderstorm Warning	SGX	Riverside, San Bernardino	53 min

Nearby

River Flood Warnings in California, 2010 Every river flood warning in 2010

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; the gauge from the NWS water service and the USGS.