Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

June 27, 2021Holmes County, Walton County, Washington County, Florida

NWS Tallahassee, FL issued this special weather statement at Jun 27, 2021, 12:01 PM CDT for Holmes County, Walton County, Washington County, Florida. It was in force for 44 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 27, 2021, 12:01 PM CDT (17:01 UTC)
Expired
Jun 27, 2021, 12:45 PM CDT
In force
44 min
Issued by
NWS Tallahassee, FL

Counties Holmes County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 17:00 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, 5.0 hours before the alert went out and 181 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 2021-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 864 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 2021-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.193958Sfc1 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
864 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
735 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
-3 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 27, 11:20 AM CDT, 41 minutes earlier.

Area forecast discussion, Jun 27, 11:20 AM CDT, 41 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, Jun 27, 11:09 AM CDT, 52 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
1209 PM EDT Sun Jun 27 2021

FLZ008-010-012-108-112-271700-
Coastal Bay FL-Central Walton FL-Inland Bay FL-South Walton FL-
Washington FL-
1209 PM EDT Sun Jun 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BAY...SOUTHEASTERN
WALTON AND SOUTHWESTERN WASHINGTON COUNTIES UNTIL 100 PM EDT/NOON
CDT/...

At 1208 PM EDT/1108 AM CDT/, Doppler radar was tracking a strong
thunderstorm near Lynn Haven, moving northwest at 10 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Panama City, Lynn Haven, Panama City Beach, Live Oak, Ebro, Bayhead,
West Bay, Inlet Beach, Southport, Seminole Hills, Port Washington,
Recota Beach, Gulf Resort Beach, Bruce, Red Head, Millers Ferry, Pine
Log, Sunnyside, Bunker and Laird.

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.

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 3037 8621 3039 8618 3038 8616 3038 8612
      3039 8611 3040 8612 3041 8612 3042 8613
      3060 8584 3031 8556 3016 8576
TIME...MOT...LOC 1608Z 141DEG 10KT 3028 8574

IG3
Special weather statement, Jun 27, 12:01 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tallahassee FL
1201 PM CDT Sun Jun 27 2021

FLZ007>010-108-271745-
Central Walton FL-Holmes FL-South Walton FL-North Walton FL-
Washington FL-
1201 PM CDT Sun Jun 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR WALTON...WESTERN HOLMES AND
CENTRAL WASHINGTON COUNTIES UNTIL 1245 PM CDT...

At 1200 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 8 miles west of Vernon to 8 miles southeast of
Eglin Air Force Base. Movement was northwest at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Vernon, Santa Rosa Beach, De Funiak Springs, Eglin Air Force Base,
Union, Liberty, Live Oak, Freeport, Paxton, Ponce De Leon, Caryville,
Westville, Ebro, Oakwood Hills, Cluster Springs, Whitehead
Crossroads, Cerrogordo, Blue Mountain Beach, Gritney and Rock Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3099 8639 3100 8586 3058 8558 3032 8621
      3040 8627 3040 8623 3043 8626 3043 8625
      3038 8616 3039 8611 3043 8612 3043 8615
      3047 8614 3046 8619 3050 8620 3048 8622
      3048 8633 3056 8639
TIME...MOT...LOC 1700Z 141DEG 18KT 3065 8584 3051 8617

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 3:40 AM CDTRip Current StatementTAEBay, Franklin, Walton21 hr
Jun 27, 11:09 AM CDTSpecial Weather StatementTAEWashington51 min
Jun 27, 12:50 PM CDTSpecial Weather StatementTAEHolmes55 min
Jun 27, 3:15 PM CDTSpecial Weather StatementTAELeon30 min
Jun 27, 3:43 PM CDTSpecial Weather StatementTAEGadsden32 min
Jun 27, 3:59 PM CDTSpecial Weather StatementTAEJefferson31 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.