Alert archive / Texas / Areal Flood Advisories in 2021

Areal Flood Advisory 210, NWS Austin/San Antonio, TX

August 2, 2021Edwards County, Kinney County, Texas

NWS Austin/San Antonio, TX issued this areal flood advisory at Aug 2, 2021, 3:53 AM CDT for Edwards County, Kinney County, Texas. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 2, 2021, 3:53 AM CDT (08:53 UTC)
Expired
Aug 2, 2021, 8:00 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

Counties Edwards County, TX, Kinney County, TX

The radar

The Laughlin AFB radar (KDFX), 45 km from the middle of the area, began a volume at 08:56 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

Del Rio, TX (KDRT), launched 00:00Z, 8.9 hours before the alert went out and 57 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, Del Rio, TX at 00:00Z on 2021-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 619 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, Del Rio, TX at 00:00Z on 2021-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
619 J/kg
Mixed-layer CIN
-185 J/kg
Mixed-layer LCL
1602 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this areal flood advisory went out at Aug 2, 3:33 AM CDT, 20 minutes earlier.

Area forecast discussion, Aug 2, 3:33 AM CDT, 20 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>
Hazardous weather outlook, Aug 1, 8:24 PM CDT, 7 hours 29 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 Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 1, 7:53 PM CDTAreal Flood AdvisoryEWXBandera, Real3 hr
Aug 1, 11:02 PM CDTAreal Flood AdvisoryEWXKendall3 hr
Aug 2, 12:27 AM CDTAreal Flood AdvisoryEWXBastrop, Hays, Travis3 hr
Aug 2, 3:45 AM CDTAreal Flood AdvisoryEWXComal, Guadalupe, Hays4 hr
Aug 2, 4:09 AM CDTFlash Flood Warning Considerable damage threatEWXComal, Guadalupe4 hr
Aug 2, 4:13 AM CDTAreal Flood AdvisoryEWXUvalde4 hr
Aug 2, 5:41 AM CDTFlash Flood Warning Considerable damage threatEWXGuadalupe4 hr
Aug 2, 5:45 AM CDTAreal Flood AdvisoryEWXBexar, Guadalupe, Wilson3 hr
Aug 2, 5:51 AM CDTAreal Flood AdvisoryEWXBandera, Real3 hr
Aug 2, 5:57 AM CDTAreal Flood AdvisoryEWXComal, Hays4 hr
Aug 2, 6:37 AM CDTAreal Flood AdvisoryEWXBandera, Kerr, Medina4 hr
Aug 2, 6:37 AM CDTFlash Flood Warning Considerable damage threatEWXComal5 hr
Aug 2, 6:52 AM CDTFlash Flood Warning Considerable damage threatEWXHays3 hr
Aug 2, 7:15 AM CDTAreal Flood AdvisoryEWXBandera, Bexar, Comal, Kendall, Kerr, Medina5 hr
Aug 2, 7:29 AM CDTSpecial Weather StatementEWXBexar46 min
Aug 2, 7:47 AM CDTFlash Flood Warning Considerable damage threatEWXBexar, Comal, Kendall4 hr
Aug 2, 8:13 AM CDTAreal Flood AdvisoryEWXKinney3 hr
Aug 2, 8:15 AM CDTAreal Flood AdvisoryEWXBastrop, Lee, Travis, Williamson5 hr
Aug 2, 8:18 AM CDTSpecial Weather StatementEWXBexar, Comal42 min
Aug 2, 8:26 AM CDTAreal Flood AdvisoryEWXBexar, Comal, Kendall4 hr
Aug 2, 8:36 AM CDTAreal Flood AdvisoryEWXBexar4 hr
Aug 2, 9:16 AM CDTAreal Flood AdvisoryEWXBlanco, Hays, Travis3 hr
Aug 2, 10:25 AM CDTAreal Flood AdvisoryEWXKinney, Maverick, Uvalde, Zavala3 hr
Aug 2, 2:45 PM CDTAreal Flood AdvisoryEWXBandera, Edwards, Kerr, Real, Val Verde3 hr
Aug 2, 4:56 PM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
Aug 2, 5:12 PM CDTAreal Flood AdvisoryEWXBlanco, Hays3 hr
Aug 2, 6:19 PM CDTAreal Flood AdvisoryEWXCaldwell, Hays, Travis2 hr

Nearby

Areal Flood Advisories in Texas, 2021Every areal flood advisory 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.