Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 1, NWS Corpus Christi, TX

March 19, 2020La Salle County, Texas

NWS Corpus Christi, TX issued this severe thunderstorm warning at Mar 19, 2020, 8:41 PM CDT for La Salle County, Texas. It was in force for 64 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: Mar 19, 2020, 8:41 PM CDT (01:41 UTC)
Expired: Mar 19, 2020, 9:45 PM CDT
In force: 64 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

County La Salle County, TX

The radar

The Laughlin AFB radar (KDFX), 154 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

Corpus Christi, TX (KCRP), launched 00:00Z, 1.7 hours before the alert went out and 186 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: 741 J/kg
Mixed-layer CIN: -396 J/kg
Mixed-layer LCL: 1346 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 64 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Corpus Christi, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 19, 6:59 PM CDT, 1 hour 42 minutes earlier.

Area forecast discussion, Mar 19, 6:59 PM CDT, 1 hour 42 minutes before

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Hazardous weather outlook, Mar 19, 3:16 PM CDT, 5 hours 25 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 19, 11:35 PM CDT	Special Weather Statement	CRP	Webb	55 min
Mar 20, 4:53 AM CDT	Special Weather Statement	CRP	Webb	52 min
Mar 20, 5:38 AM CDT	Special Weather Statement	CRP	Live Oak	52 min
Mar 20, 5:41 AM CDT	Special Weather Statement	CRP	Webb	49 min
Mar 20, 6:14 AM CDT	Special Weather Statement	CRP	Goliad	46 min
Mar 20, 10:41 AM CDT	Special Weather Statement	CRP	Duval	49 min
Mar 20, 11:01 AM CDT	Special Weather Statement	CRP	Victoria	44 min
Mar 20, 11:09 AM CDT	Severe Thunderstorm Warning	CRP	Duval, Live Oak, McMullen	36 min
Mar 20, 11:39 AM CDT	Severe Thunderstorm Warning	CRP	Live Oak	51 min
Mar 20, 11:57 AM CDT	Special Weather Statement	CRP	Bee	33 min
Mar 20, 12:10 PM CDT	Severe Thunderstorm Warning	CRP	Bee, Goliad, Live Oak	21 min
Mar 20, 12:24 PM CDT	Special Weather Statement	CRP	Refugio	36 min
Mar 20, 12:37 PM CDT	Severe Thunderstorm Warning	CRP	Refugio, Victoria	38 min
Mar 20, 12:42 PM CDT	Special Weather Statement	CRP	Victoria	48 min
Mar 20, 1:08 PM CDT	Special Weather Statement	CRP	Calhoun	37 min
Mar 20, 1:11 PM CDT	Severe Thunderstorm Warning	CRP	Victoria	22 min

Nearby

Severe Thunderstorm Warnings in Texas, 2020 Every severe thunderstorm warning in 2020

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.