Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Houston/Galveston, TX

June 5, 2021Austin County, Texas

NWS Houston/Galveston, TX issued this special weather statement at Jun 5, 2021, 8:36 PM CDT for Austin County, Texas. It was in force for 39 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: Jun 5, 2021, 8:36 PM CDT (01:36 UTC)
Expired: Jun 5, 2021, 9:15 PM CDT
In force: 39 min
Issued by: NWS Houston/Galveston, TX

County Austin County, TX

The radar

The Ft Hood radar (KGRK), 123 km from the middle of the area, began a volume at 01:40 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

Fort Worth, TX (KFWD), launched 00:00Z, 1.6 hours before the alert went out and 337 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: 941 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1368 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

In the hours before

Special weather statement, Jun 5, 8:36 PM CDT, 0 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 Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 5, 7:58 PM CDT	Areal Flood Advisory	HGX	Harris, Montgomery	2 hr
Jun 5, 8:48 PM CDT	Tornado Warning	HGX	Austin, Colorado	27 min
Jun 5, 9:11 PM CDT	Tornado Warning	HGX	Austin, Colorado	16 min
Jun 5, 9:24 PM CDT	Tornado Warning	HGX	Austin, Colorado, Waller	36 min
Jun 5, 9:51 PM CDT	Special Weather Statement	HGX	Waller	39 min
Jun 5, 10:30 PM CDT	Special Weather Statement	HGX	Fort Bend	30 min
Jun 5, 11:07 PM CDT	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Waller	3 hr
Jun 6, 5:30 PM CDT	Special Weather Statement	HGX	Liberty	45 min

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.