Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 89, NWS Melbourne, FL

July 31, 1993Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 31, 1993, 2:32 PM EDT for Indian River County, Florida. It was in force for 44 min.

The area

The counties it named.

The facts

Issued: Jul 31, 1993, 2:32 PM EDT (18:32 UTC)
Expired: Jul 31, 1993, 3:16 PM EDT
In force: 44 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 47 km from the middle of the area, began a volume at 18:33 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

Tampa Bay, FL (KTBW), launched 12:00Z, 6.5 hours before the alert went out and 180 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: 3672 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 16 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 severe thunderstorm 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, Jul 31, 2:09 PM EDT, 23 minutes before

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Special weather statement, Jul 31, 2:10 PM EDT, 22 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.
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The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 31, 3:30 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	60 min
Jul 31, 5:44 PM EDT	Severe Thunderstorm Warning	MLB	Orange	46 min
Jul 31, 7:28 PM EDT	Severe Thunderstorm Warning	MLB	Lake	32 min

Nearby

Severe Thunderstorm Warnings in Florida, 1993 Every severe thunderstorm warning in 1993

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.