Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

April 10, 2021Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Apr 10, 2021, 4:47 AM CDT for Walton County, Florida. It was in force for 58 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
Apr 10, 2021, 4:47 AM CDT (09:47 UTC)
Expired
Apr 10, 2021, 5:45 AM CDT
In force
58 min
Issued by
NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 30 km from the middle of the area, began a volume at 09:47 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

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.8 hours before the alert went out and 187 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 160 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
160 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
849 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tallahassee, FL wrote its last area forecast discussion before this special weather statement went out at Apr 10, 2:50 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Apr 10, 2:50 AM CDT, 1 hour 57 minutes before
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In the hours before

Special weather statement, Apr 10, 4:47 AM CDT, 0 minutes before
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<head>
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  <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.
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      <p id="message2">
        Please try again in a few minutes.
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        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 Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 5:30 AM CDTSpecial Marine WarningTAE3 hr
Apr 10, 5:57 AM CDTSevere Thunderstorm WarningTAEBay, Holmes, Jackson, Walton, Washington93 min
Apr 10, 6:18 AM CDTTornado WarningTAEWalton27 min
Apr 10, 6:34 AM CDTTornado WarningTAEHolmes, Walton26 min
Apr 10, 7:21 AM CDTSevere Thunderstorm WarningTAEBay, Holmes, Jackson, Walton, Washington84 min
Apr 10, 7:53 AM CDTSpecial Marine WarningTAE3 hr
Apr 10, 7:59 AM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington91 min
Apr 10, 8:31 AM CDTTornado WarningTAEBay, Walton34 min
Apr 10, 8:43 AM CDTSevere Thunderstorm WarningTAEJackson62 min
Apr 10, 8:46 AM CDTTornado WarningTAEBay29 min
Apr 10, 8:54 AM CDTSevere Thunderstorm WarningTAECalhoun, Gulf77 min
Apr 10, 9:04 AM CDTTornado WarningTAEBay, Calhoun, Gulf26 min
Apr 10, 9:08 AM CDTTornado WarningTAEBay, Calhoun23 min
Apr 10, 9:15 AM CDTSevere Thunderstorm WarningTAEFranklin, Gadsden, Liberty90 min
Apr 10, 9:20 AM CDTSpecial Marine WarningTAE3 hr
Apr 10, 9:30 AM CDTTornado WarningTAECalhoun, Liberty30 min
Apr 10, 9:56 AM CDTSevere Thunderstorm WarningTAEFranklin, Gadsden, Leon, Wakulla82 min
Apr 10, 10:29 AM CDTTornado WarningTAELeon31 min
Apr 10, 10:48 AM CDTSpecial Marine WarningTAE3 hr
Apr 10, 11:04 AM CDTSpecial Weather StatementTAEJefferson41 min
Apr 10, 11:39 AM CDTSpecial Weather StatementTAEJefferson, Madison66 min
Apr 10, 12:20 PM CDTSpecial Weather StatementTAELafayette, Madison, Taylor70 min
Apr 10, 11:05 AM CDTSpecial Weather StatementTAEThomas40 min
Apr 10, 4:45 AM CDTSevere Thunderstorm WarningTAECoffee, Geneva51 min
Apr 10, 6:42 AM CDTSevere Thunderstorm WarningTAEGeneva63 min

Nearby

Special Weather Statements in Florida, 2021Every special weather statement in 2021

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.