Alert archive / California / High Wind Watches in 2013

High Wind Watch 8, NWS San Diego, CA

April 16, 20134 counties in California

NWS San Diego, CA issued this high wind watch at Apr 16, 2013, 9:00 PM PDT for 4 counties in California. It took effect at Apr 18, 2013, 12:00 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 16, 2013, 9:00 PM PDT (04:00 UTC)
In effect from
Apr 18, 2013, 12:00 AM PDT
Expired
Apr 17, 2013, 6:28 PM PDT
In force
Issued by
NWS San Diego, CA

Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 04:06 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

San Diego, CA (KNKX), launched 00:00Z, 4.0 hours before the alert went out and 124 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-pSkew-T log-p diagram, San Diego, CA at 00:00Z on 2013-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 00:00Z on 2013-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
8 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1183 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
-54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind watch 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 high wind watch went out at Apr 16, 2:20 PM PDT, 6 hours 40 minutes earlier.

Area forecast discussion, Apr 16, 2:20 PM PDT, 6 hours 40 minutes before
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Hazardous weather outlook, Apr 16, 4:00 AM PDT, 17 hours 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.
      </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.
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The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 9:34 AM PDTFire Weather WatchSGXOrange, Riverside, San Bernardino, San Diego7 hr
Apr 17, 1:17 PM PDTWind AdvisorySGXOrange, Riverside, San Bernardino, San Diego24 hr
Apr 17, 4:45 PM PDTRed Flag WarningSGXOrange, Riverside, San Bernardino, San Diego48 hr

Nearby

High Wind Watches in California, 2013Every high wind watch in 2013

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.