Alert archive / Florida / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 24, NWS Melbourne, FL

March 13, 1993Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 13, 1993, 4:05 AM EST for Indian River County, Florida. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Mar 13, 1993, 4:05 AM EST (09:05 UTC)
Expired: Mar 13, 1993, 5:00 AM EST
In force: 55 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 09:26 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 9.1 hours before the alert went out and 86 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: 701 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 721 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.7

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

Local storm report, Mar 13, 1:00 AM EST, 3 hours 5 minutes before

STORM REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MELBOURNE FL
100 AM EST SAT MAR 13 1993

TIME         LOCATION         REPORT

1230 AM      LAKE COUNTY      TREES AND POWER LINES DOWN IN MT DORA

Local storm report, Mar 13, 1:26 AM EST, 2 hours 39 minutes before

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Local storm report, Mar 13, 1:35 AM EST, 2 hours 30 minutes before

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Local storm report, Mar 13, 1:48 AM EST, 2 hours 17 minutes before

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Special weather statement, Mar 13, 2:13 AM EST, 1 hour 52 minutes before

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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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Special weather statement, Mar 13, 4:01 AM EST, 4 minutes before

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<html lang="en">
<head>
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  <title>Service Notice</title>
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</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
Mar 13, 12:08 AM EST	Tornado Warning	MLB	Lake	67 min
Mar 13, 12:37 AM EST	Tornado Warning	MLB	Orange	68 min
Mar 13, 12:48 AM EST	Tornado Warning	MLB	Seminole	57 min
Mar 13, 1:05 AM EST	Severe Thunderstorm Warning	MLB	Marion	85 min
Mar 13, 1:05 AM EST	Severe Thunderstorm Warning	MLB	Flagler, Volusia	10 min
Mar 13, 1:05 AM EST	Tornado Warning	MLB	Osceola	55 min
Mar 13, 1:15 AM EST	Tornado Warning	MLB	Flagler, Volusia	75 min
Mar 13, 1:42 AM EST	Severe Thunderstorm Warning	MLB	Orange	63 min
Mar 13, 1:58 AM EST	Severe Thunderstorm Warning	MLB	Brevard	62 min
Mar 13, 2:00 AM EST	Severe Thunderstorm Warning	MLB	Osceola	60 min
Mar 13, 4:31 AM EST	Severe Thunderstorm Warning	MLB	Palm Beach	59 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.