Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

June 29, 2021Walton County, Florida

NWS Tallahassee, FL issued this special weather statement at Jun 29, 2021, 12:37 PM CDT for Walton County, Florida. It was in force for 53 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
Jun 29, 2021, 12:37 PM CDT (17:37 UTC)
Expired
Jun 29, 2021, 1:30 PM CDT
In force
53 min
Issued by
NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 13 km from the middle of the area, began a volume at 17:37 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, 5.6 hours before the alert went out and 168 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 2021-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 990 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 2021-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
990 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
46 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 Jun 29, 12:25 PM CDT, 12 minutes earlier.

Area forecast discussion, Jun 29, 12:25 PM CDT, 12 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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</html>

In the hours before

Special weather statement, Jun 29, 12:37 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
137 PM EDT Tue Jun 29 2021

FLZ007>010-012-108-112-291830-
Coastal Bay FL-Central Walton FL-Holmes FL-Inland Bay FL-
South Walton FL-North Walton FL-Washington FL-
137 PM EDT Tue Jun 29 2021

...SPECIAL WEATHER STATEMENT...

At 136 PM EDT/1236 PM CDT/, Doppler radar was tracking a strong
thunderstorm 15 miles north of Panama City Beach, moving northwest at
15 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Vernon, De Funiak Springs, Eglin Air Force Base, Live Oak, Freeport,
Ponce De Leon, Caryville, Westville, Ebro, Hinsons Crossroads,
Portland, Whitehead Crossroads, Seminole Hills, Cerrogordo, Gritney,
Rock Hill, Holmes Valley, Millers Ferry, Knox Hill and Hickory Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3088 8585 3050 8561 3026 8597 3042 8611
      3041 8612 3043 8612 3045 8615 3046 8615
      3047 8613 3048 8614 3047 8616 3060 8628
TIME...MOT...LOC 1736Z 148DEG 14KT 3043 8587

72-BUNKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:18 PM CDTSpecial Weather StatementTAEBay27 min
Jun 28, 7:20 PM CDTSpecial Marine WarningTAE26 min
Jun 29, 1:12 PM CDTSpecial Weather StatementTAEDixie, Lafayette63 min
Jun 29, 1:16 PM CDTSpecial Weather StatementTAEWashington44 min
Jun 29, 1:19 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton26 min
Jun 29, 1:28 PM CDTSevere Thunderstorm WarningTAEDixie32 min
Jun 29, 1:54 PM CDTSpecial Marine WarningTAE96 min
Jun 29, 2:11 PM CDTSevere Thunderstorm WarningTAEDixie, Lafayette, Taylor55 min
Jun 29, 2:32 PM CDTSpecial Weather StatementTAEMadison43 min
Jun 29, 2:47 PM CDTSevere Thunderstorm WarningTAEJefferson, Taylor73 min
Jun 29, 3:15 PM CDTSpecial Weather StatementTAEJefferson45 min
Jun 29, 3:18 PM CDTSevere Thunderstorm WarningTAEJefferson, Madison42 min
Jun 29, 3:25 PM CDTSpecial Marine WarningTAE65 min
Jun 29, 3:49 PM CDTSpecial Weather StatementTAEWakulla41 min
Jun 29, 6:28 PM CDTSpecial Weather StatementTAEGulf47 min
Jun 29, 3:59 PM CDTSpecial Weather StatementTAEColquitt, Cook, Grady, Thomas, Worth61 min
Jun 29, 4:37 PM CDTSevere Thunderstorm WarningTAEDecatur53 min
Jun 29, 4:39 PM CDTSpecial Weather StatementTAEBen Hill, Tift, Turner, Worth66 min
Jun 29, 4:44 PM CDTSevere Thunderstorm WarningTAEColquitt, Grady, Mitchell, Thomas, Worth61 min
Jun 29, 4:54 PM CDTSevere Thunderstorm WarningTAEBen Hill, Irwin, Tift, Turner, Worth66 min
Jun 29, 5:19 PM CDTSevere Thunderstorm WarningTAEBaker, Dougherty, Miller41 min
Jun 29, 5:51 PM CDTSpecial Weather StatementTAECalhoun, Clay, Early, Lee, Quitman, Randolph and 1 more54 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.