Alert archive / California / Special Weather Statements in 2015

Special Weather Statement, NWS Eureka, CA

July 5, 2015Trinity County, California

NWS Eureka, CA issued this special weather statement at Jul 5, 2015, 4:45 PM PDT for Trinity County, California. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 5, 2015, 4:45 PM PDT (23:45 UTC)
Expired: Jul 5, 2015, 5:15 PM PDT
In force: 30 min
Issued by: NWS Eureka, CA

County Trinity County, CA

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 11.8 hours before the alert went out and 189 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2328 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: -87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!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 Eureka, CA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 4, 5:13 PM PDT	Flash Flood Warning	EKA	Trinity	2 hr
Jul 4, 5:28 PM PDT	Special Weather Statement	EKA	Trinity	32 min
Jul 4, 5:36 PM PDT	Severe Thunderstorm Warning	EKA	Trinity	28 min
Jul 4, 6:28 PM PDT	Special Weather Statement	EKA	Trinity	32 min

Nearby

Special Weather Statements in California, 2015 Every special weather statement in 2015

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.