Alert archive / Texas / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 67, NWS Houston/Galveston, TX

April 20, 1995Trinity County, Texas

NWS Houston/Galveston, TX issued this severe thunderstorm warning at Apr 20, 1995, 9:37 AM CDT for Trinity County, Texas. It was in force for 68 min.

The area

The counties it named.

The facts

Issued: Apr 20, 1995, 9:37 AM CDT (14:37 UTC)
Expired: Apr 20, 1995, 10:45 AM CDT
In force: 68 min
Issued by: NWS Houston/Galveston, TX
Area: Whole counties

County Trinity County, TX

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 2.6 hours before the alert went out and 203 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: 40 J/kg
Mixed-layer CIN: -299 J/kg
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Houston/Galveston, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 20, 7:25 AM CDT, 2 hours 12 minutes earlier.

Area forecast discussion, Apr 20, 7:25 AM CDT, 2 hours 12 minutes before

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In the hours before

Special weather statement, Apr 20, 5:16 AM CDT, 4 hours 21 minutes before

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Special weather statement, Apr 20, 5:43 AM CDT, 3 hours 54 minutes before

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<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">
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<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.
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 20, 2:07 AM CDT	Severe Thunderstorm Warning	HGX	Brazos	68 min
Apr 20, 2:43 AM CDT	Severe Thunderstorm Warning	HGX	Grimes	62 min
Apr 20, 9:37 AM CDT	Severe Thunderstorm Warning	HGX	Walker	63 min
Apr 20, 11:40 AM CDT	Severe Thunderstorm Warning	HGX	Walker	14 min
Apr 20, 1:31 PM CDT	Severe Thunderstorm Warning	HGX	Montgomery, Waller	59 min
Apr 20, 2:40 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Harris	65 min
Apr 20, 2:45 PM CDT	Severe Thunderstorm Warning	HGX	Polk, San Jacinto	60 min
Apr 20, 3:07 PM CDT	Tornado Warning	HGX	Chambers, Harris	67 min
Apr 20, 3:21 PM CDT	Tornado Warning	HGX	Liberty	53 min
Apr 20, 3:36 PM CDT	Severe Thunderstorm Warning	HGX	Polk, San Jacinto	69 min
Apr 20, 4:36 PM CDT	Severe Thunderstorm Warning	HGX	Trinity	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 1995 Every severe thunderstorm warning in 1995

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.