Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Melbourne, FL

May 30, 2018Okeechobee County, Osceola County, Florida

NWS Melbourne, FL issued this special weather statement at May 30, 2018, 5:29 PM EDT for Okeechobee County, Osceola County, Florida. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 30, 2018, 5:29 PM EDT (21:29 UTC)
Expired: May 30, 2018, 6:15 PM EDT
In force: 46 min
Issued by: NWS Melbourne, FL

Counties Okeechobee County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 74 km from the middle of the area, began a volume at 21:28 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, 9.5 hours before the alert went out and 141 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: 267 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 650 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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 Melbourne, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 10:34 AM EDT	Special Weather Statement	MLB	Sumter	26 min
May 30, 1:06 PM EDT	Special Marine Warning	MLB		114 min
May 30, 1:10 PM EDT	Special Weather Statement	MLB	Brevard	50 min
May 30, 1:33 PM EDT	Special Weather Statement	MLB	Orange	27 min
May 30, 1:38 PM EDT	Special Weather Statement	MLB	Volusia	52 min
May 30, 1:41 PM EDT	Special Marine Warning	MLB		94 min
May 30, 1:44 PM EDT	Special Weather Statement	MLB	Seminole	61 min
May 30, 1:57 PM EDT	Special Weather Statement	MLB	Orange	48 min
May 30, 2:09 PM EDT	Areal Flood Advisory	MLB	Martin, Saint Lucie	111 min
May 30, 2:20 PM EDT	Areal Flood Advisory	MLB	Volusia	115 min

Nearby

Special Weather Statements in Florida, 2018 Every special weather statement in 2018

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.