Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

July 27, 2021Wakulla County, Florida

NWS Tallahassee, FL issued this special weather statement at Jul 27, 2021, 2:10 PM EDT for Wakulla County, Florida. It was in force for 50 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
Jul 27, 2021, 2:10 PM EDT (18:10 UTC)
Expired
Jul 27, 2021, 3:00 PM EDT
In force
50 min
Issued by
NWS Tallahassee, FL

County Wakulla County, FL

The radar

The Tallahassee radar (KTLH), 31 km from the middle of the area, began a volume at 18:12 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 12:00Z, 6.2 hours before the alert went out and 34 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 12:00Z on 2021-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1615 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 12:00Z on 2021-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
1615 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
947 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 27, 1:46 PM EDT, 24 minutes earlier.

Area forecast discussion, Jul 27, 1:46 PM EDT, 24 minutes before
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<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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In the hours before

Special weather statement, Jul 27, 2:10 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
210 PM EDT Tue Jul 27 2021

FLZ017-026-027-271900-
Liberty FL-Inland Wakulla FL-Leon FL-
210 PM EDT Tue Jul 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN WAKULLA...
SOUTHEASTERN LIBERTY AND SOUTHWESTERN LEON COUNTIES UNTIL 300 PM
EDT...

At 209 PM EDT, Doppler radar was tracking a strong thunderstorm 18
miles southwest of Midway, moving southeast at 5 mph.

Pea size hail and winds up to 40 mph are possible with this storm.
Very heavy rainfall is also possible with this storm due to its slow
motion.

Locations impacted include...
Smith Creek, Bloxham, Brown House, Sanborn, Helen and Jewel Fire
Tower.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3026 8477 3041 8461 3038 8432 3004 8462
TIME...MOT...LOC 1809Z 309DEG 6KT 3028 8464

21-WD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 2:39 AM EDTSpecial Marine WarningTAE2 hr
Jul 27, 9:25 AM EDTAreal Flood AdvisoryTAEJefferson2 hr
Jul 27, 10:48 AM EDTAreal Flood AdvisoryTAEMadison117 min
Jul 27, 2:47 PM EDTSpecial Weather StatementTAECalhoun43 min
Jul 27, 2:56 PM EDTSpecial Weather StatementTAELiberty34 min
Jul 27, 5:48 PM EDTAreal Flood AdvisoryTAEBaker, Calhoun, Clay, Early, Miller117 min
Jul 27, 6:14 PM EDTSpecial Weather StatementTAEWorth31 min
Jul 27, 6:26 PM EDTAreal Flood AdvisoryTAECalhoun, Dougherty, Worth109 min
Jul 27, 6:49 PM EDTFlash Flood WarningTAEDougherty, Lee, Worth116 min
Jul 27, 6:56 PM EDTSpecial Weather StatementTAEColquitt, Decatur, Grady, Mitchell49 min
Jul 27, 7:34 PM EDTSpecial Weather StatementTAEBrooks, Colquitt, Cook, Lowndes56 min
Jul 27, 4:47 PM EDTSpecial Weather StatementTAEHouston28 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.