Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Jacksonville, FL

July 28, 2021Gilchrist County, Florida

NWS Jacksonville, FL issued this special weather statement at Jul 28, 2021, 2:07 PM EDT for Gilchrist County, Florida. It was in force for 23 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 28, 2021, 2:07 PM EDT (18:07 UTC)
Expired
Jul 28, 2021, 2:30 PM EDT
In force
23 min
Issued by
NWS Jacksonville, FL

County Gilchrist County, FL

The radar

The Moody AFB radar (KVAX), 128 km from the middle of the area, began a volume at 18:07 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

Jacksonville, FL (KJAX), launched 12:00Z, 6.1 hours before the alert went out and 134 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, Jacksonville, FL at 12:00Z on 2021-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 737 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, Jacksonville, FL at 12:00Z on 2021-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
737 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
915 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Jacksonville, FL wrote its last area forecast discussion before this special weather statement went out at Jul 28, 1:29 PM EDT, 38 minutes earlier.

Area forecast discussion, Jul 28, 1:29 PM EDT, 38 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Jul 28, 2:07 PM EDT, 0 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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 9:33 PM EDTRiver Flood WarningJAXAlachua, Columbia4 days
Jul 28, 2:18 PM EDTSpecial Weather StatementJAXFlagler27 min
Jul 28, 2:28 PM EDTSpecial Weather StatementJAXMarion32 min
Jul 28, 2:35 PM EDTSpecial Weather StatementJAXAlachua25 min
Jul 28, 2:43 PM EDTSpecial Weather StatementJAXAlachua32 min
Jul 28, 3:03 PM EDTSpecial Weather StatementJAXAlachua27 min
Jul 28, 3:07 PM EDTSpecial Weather StatementJAXPutnam38 min
Jul 28, 3:28 PM EDTSpecial Weather StatementJAXClay32 min
Jul 28, 3:30 PM EDTSpecial Weather StatementJAXSaint Johns30 min
Jul 28, 3:41 PM EDTSpecial Weather StatementJAXBradford34 min
Jul 28, 3:42 PM EDTSpecial Weather StatementJAXMarion33 min
Jul 28, 3:59 PM EDTSpecial Weather StatementJAXPutnam46 min
Jul 28, 4:11 PM EDTSpecial Weather StatementJAXClay34 min
Jul 28, 4:40 PM EDTSpecial Weather StatementJAXDuval50 min
Jul 28, 5:40 PM EDTSpecial Weather StatementJAXDuval50 min
Jul 28, 5:44 PM EDTSpecial Weather StatementJAXBaker, Columbia46 min
Jul 28, 5:50 PM EDTSpecial Marine WarningJAX55 min
Jul 27, 8:10 PM EDTAreal Flood WarningJAXBrantley, Camden, Glynn3 hr
Jul 27, 8:16 PM EDTSpecial Weather StatementJAXWayne44 min
Jul 27, 8:42 PM EDTSpecial Weather StatementJAXBrantley48 min
Jul 27, 8:56 PM EDTSpecial Weather StatementJAXGlynn94 min
Jul 27, 9:04 PM EDTSpecial Weather StatementJAXAppling, Jeff Davis41 min
Jul 27, 9:44 PM EDTSpecial Weather StatementJAXAppling, Jeff Davis76 min
Jul 27, 10:14 PM EDTAreal Flood WarningJAXAppling, Bacon, Jeff Davis2 hr
Jul 27, 10:28 PM EDTSpecial Weather StatementJAXPierce62 min
Jul 27, 11:02 PM EDTAreal Flood WarningJAXBrantley, Pierce, Wayne118 min
Jul 28, 4:45 PM EDTSpecial Weather StatementJAXJeff Davis45 min
Jul 28, 5:27 PM EDTSpecial Weather StatementJAXBacon, Coffee, Jeff Davis63 min
Jul 28, 6:02 PM EDTSpecial Weather StatementJAXAtkinson43 min
Jul 28, 6:28 PM EDTSevere Thunderstorm WarningJAXAtkinson, Coffee17 min
Jul 28, 6:49 PM EDTSpecial Weather StatementJAXAtkinson26 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.