Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tallahassee, FL

July 27, 2021Calhoun County, Florida

NWS Tallahassee, FL issued this special weather statement at Jul 27, 2021, 1:47 PM CDT for Calhoun County, Florida. It was in force for 43 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, 1:47 PM CDT (18:47 UTC)
Expired: Jul 27, 2021, 2:30 PM CDT
In force: 43 min
Issued by: NWS Tallahassee, FL

County Calhoun County, FL

The radar

The Eglin Afb radar (KEVX), 71 km from the middle of the area, began a volume at 18:46 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, 6.8 hours before the alert went out and 90 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: 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, 12:46 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Jul 27, 12:46 PM CDT, 1 hour 1 minute 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>
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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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In the hours before

Special weather statement, Jul 27, 1:10 PM CDT, 37 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

Special weather statement, Jul 27, 1:47 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
147 PM CDT Tue Jul 27 2021

FLZ013-271930-
Calhoun FL-
147 PM CDT Tue Jul 27 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CALHOUN COUNTY IN
THE PANHANDLE OF FLORIDA UNTIL 230 PM CDT...

At 147 PM CDT, Doppler radar was tracking a strong thunderstorm 13
miles north of Stonemill Creek, or 13 miles southwest of Blountstown,
moving southeast at 10 mph.

Pea size hail and wind gusts up to 50 mph are possible with this
storm.

Locations impacted include...
Marysville, Scotts Ferry, Abe Springs, Sharpstown, Frink, Kinard,
Broad Branch and Chipola Park.

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 3043 8531 3040 8509 3032 8508 3023 8514
      3022 8525 3026 8534 3036 8535
TIME...MOT...LOC 1847Z 292DEG 7KT 3033 8524

21-WD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 1:39 AM CDT	Special Marine Warning	TAE		2 hr
Jul 27, 8:25 AM CDT	Areal Flood Advisory	TAE	Jefferson	2 hr
Jul 27, 9:48 AM CDT	Areal Flood Advisory	TAE	Madison	117 min
Jul 27, 1:10 PM CDT	Special Weather Statement	TAE	Wakulla	50 min
Jul 27, 1:56 PM CDT	Special Weather Statement	TAE	Liberty	34 min
Jul 27, 4:48 PM CDT	Areal Flood Advisory	TAE	Baker, Calhoun, Clay, Early, Miller	117 min
Jul 27, 5:14 PM CDT	Special Weather Statement	TAE	Worth	31 min
Jul 27, 5:26 PM CDT	Areal Flood Advisory	TAE	Calhoun, Dougherty, Worth	109 min
Jul 27, 5:49 PM CDT	Flash Flood Warning	TAE	Dougherty, Lee, Worth	116 min
Jul 27, 5:56 PM CDT	Special Weather Statement	TAE	Colquitt, Decatur, Grady, Mitchell	49 min
Jul 27, 6:34 PM CDT	Special Weather Statement	TAE	Brooks, Colquitt, Cook, Lowndes	56 min
Jul 27, 3:47 PM CDT	Special Weather Statement	TAE	Houston	28 min

Nearby

Special Weather Statements in Florida, 2021 Every 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.