Alert archive / Texas / Flash Flood Warnings in 1991

Flash Flood Warning 3, NWS Houston/Galveston, TX

January 15, 1991Montgomery County, Texas

NWS Houston/Galveston, TX issued this flash flood warning at Jan 15, 1991, 3:56 AM CST for Montgomery County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jan 15, 1991, 3:56 AM CST (09:56 UTC)
Expired: Jan 15, 1991, 7:00 AM CST
In force: 3 hr
Issued by: NWS Houston/Galveston, TX
Area: Whole counties

County Montgomery County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.9 hours before the alert went out and 222 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 flash flood warning 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, Jan 14, 10:54 PM CST, 5 hours 2 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>

Special weather statement, Jan 15, 12:02 AM CST, 3 hours 54 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
Jan 14, 6:32 PM CST	Tornado Warning	HGX	Colorado, Wharton	58 min
Jan 14, 6:43 PM CST	Severe Thunderstorm Warning	HGX	Austin, Waller	62 min
Jan 14, 7:51 PM CST	Severe Thunderstorm Warning	HGX	Matagorda	69 min
Jan 14, 7:57 PM CST	Tornado Warning	HGX	Matagorda	63 min
Jan 14, 8:08 PM CST	Tornado Warning	HGX	Fort Bend, Harris	67 min
Jan 14, 8:38 PM CST	Severe Thunderstorm Warning	HGX	Brazoria	67 min
Jan 14, 9:40 PM CST	Severe Thunderstorm Warning	HGX	Galveston	65 min
Jan 14, 9:52 PM CST	Severe Thunderstorm Warning	HGX	Montgomery, San Jacinto	68 min
Jan 14, 9:52 PM CST	Severe Thunderstorm Warning	HGX	Galveston	68 min
Jan 14, 10:17 PM CST	Severe Thunderstorm Warning	HGX	Chambers	118 min
Jan 14, 10:36 PM CST	Tornado Warning	HGX	Fort Bend, Harris	69 min
Jan 15, 12:04 AM CST	Severe Thunderstorm Warning	HGX	Chambers, Galveston	56 min
Jan 15, 7:03 AM CST	Flash Flood Warning	HGX	Montgomery	117 min

Nearby

Flash Flood Warnings in Texas, 1991 Every flash flood warning in 1991

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.