Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 173, NWS Fort Worth, TX

August 8, 2018Young County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Aug 8, 2018, 8:08 PM CDT for Young County, Texas. It was in force for 55 min. 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 8, 2018, 8:08 PM CDT (01:08 UTC)
Expired
Aug 8, 2018, 9:03 PM CDT
In force
55 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Young County, TX

The radar

The Dyess AFB radar (KDYX), 89 km from the middle of the area, began a volume at 01:11 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

Midland Regional, TX (KMAF), launched 00:00Z, 1.1 hours before the alert went out and 356 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, Midland Regional, TX at 00:00Z on 2018-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 630 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, Midland Regional, TX at 00:00Z on 2018-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939Sfc1 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
630 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
2606 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Fort Worth, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 6:33 PM CDT, 1 hour 35 minutes earlier.

Area forecast discussion, Aug 8, 6:33 PM CDT, 1 hour 35 minutes before
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Hazardous weather outlook, Aug 8, 3:45 PM CDT, 4 hours 23 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>

In the hours before

Special weather statement, Aug 8, 7:53 PM CDT, 15 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 Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 7:53 PM CDTSpecial Weather StatementFWDYoung37 min
Aug 8, 8:35 PM CDTSpecial Weather StatementFWDJack25 min
Aug 9, 2:52 PM CDTSpecial Weather StatementFWDCoryell23 min
Aug 9, 3:21 PM CDTSpecial Weather StatementFWDCoryell24 min
Aug 9, 3:28 PM CDTSpecial Weather StatementFWDDenton32 min
Aug 9, 3:40 PM CDTSpecial Weather StatementFWDCoryell50 min
Aug 9, 3:47 PM CDTSpecial Weather StatementFWDDenton28 min
Aug 9, 4:17 PM CDTSpecial Weather StatementFWDBosque28 min
Aug 9, 4:42 PM CDTSpecial Weather StatementFWDTarrant33 min
Aug 9, 5:01 PM CDTSpecial Weather StatementFWDMcLennan29 min
Aug 9, 5:07 PM CDTSpecial Weather StatementFWDHood23 min
Aug 9, 5:23 PM CDTSpecial Weather StatementFWDBell37 min
Aug 9, 5:29 PM CDTSpecial Weather StatementFWDJohnson46 min
Aug 9, 5:36 PM CDTSevere Thunderstorm WarningFWDJohnson, Parker, Tarrant24 min
Aug 9, 5:48 PM CDTSpecial Weather StatementFWDJohnson27 min
Aug 9, 5:55 PM CDTSpecial Weather StatementFWDLimestone35 min
Aug 9, 6:08 PM CDTSpecial Weather StatementFWDTarrant37 min
Aug 9, 6:15 PM CDTSevere Thunderstorm WarningFWDJohnson45 min
Aug 9, 6:39 PM CDTSpecial Weather StatementFWDAnderson36 min
Aug 9, 6:40 PM CDTSevere Thunderstorm WarningFWDEllis, Johnson33 min
Aug 9, 6:53 PM CDTSpecial Weather StatementFWDJohnson37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2018Every severe thunderstorm warning in 2018

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.