Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Tallahassee, FL

July 9, 2017Grady County, Georgia

NWS Tallahassee, FL issued this special weather statement at Jul 9, 2017, 6:52 PM EDT for Grady County, Georgia. It was in force for 38 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 9, 2017, 6:52 PM EDT (22:52 UTC)
Expired
Jul 9, 2017, 7:30 PM EDT
In force
38 min
Issued by
NWS Tallahassee, FL

County Grady County, GA

The radar

The Tallahassee radar (KTLH), 77 km from the middle of the area, began a volume at 22:53 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, 10.9 hours before the alert went out and 76 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 2017-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 613 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 2017-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
613 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
795 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
-9 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 Tallahassee, FL wrote its last area forecast discussion before this special weather statement went out at Jul 9, 2:48 PM EDT, 4 hours 4 minutes earlier.

Area forecast discussion, Jul 9, 2:48 PM EDT, 4 hours 4 minutes before
Area Forecast Discussion
National Weather Service Tallahassee FL
248 PM EDT Sun Jul 9 2017

.NEAR TERM [Through Tonight]...

Scattered convection is expected through the evening hours.
Modifying the 12z KTAE sounding for an afternoon T/Td of 90/74
yields SBCAPE values in the 3500-4000 j/kg. Given the high
instability, there could be an isolated strong to severe storm this
afternoon. However, the mid-level lapse rates are around 0.5C/km
less than yesterday, and there isn't quite as much mid-level dry air
either. Thus, we don't expect as much strong to severe activity as
yesterday. Activity will gradually diminish after sunset, although
some activity could linger for a couple of hours after sunset
tonight. Overnight lows will generally be in the low to mid 70s.

.SHORT TERM [Monday Through Tuesday Night]...

The upper level trough over the eastern CONUS will deamplify
allowing the western extension of the Bermuda Ridge to build into
our area. The axis of the surface ridge is forecast to remain just
south of our CWA so a moist onshore flow will continue. MOS and ECAM
guidance show PoPs in the likely (60-70%)range tomorrow. Despite the
ridge building in from the east late Tuesday, we should still see
a fairly typical day for early July with 40-50% PoPs. Highs will
be in the lower 90s with lows in the lower to mid 70s.

.LONG TERM [Wednesday Through Sunday]...

As deep layer ridging becomes more established over our area, we
will see below seasonal chances for convection by the end of the
week (20-30%) along with above normal daytime temperatures (mid
90s). Rain chances should increase over the weekend as the upper
ridge breaks down and another trough digs into the region along
with the approach of a surface front/trough from the north.

&&

.AVIATION [Through 18Z Monday]...

Scattered TSRA will continue across the area through the evening
hours. VFR conditions are expected to prevail outside of convection.
TSRA may get an early start during the late morning hours on Monday
around ECP and TLH.

&&

.MARINE...

Winds and seas will generally remain on the low side as high
pressure will dominate across the northern Gulf. Locally higher
enhancements to winds and seas can be expected in and around
heavier thunderstorms.

&&

.FIRE WEATHER...

Hazardous fire weather conditions are not expected over the next
several days.

&&

.HYDROLOGY...

Diurnal summertime showers and storms can be expected just about
every afternoon and early evening this period. Brief heavy rain
can also be expected with any slower moving storm. The duration of
the heavy rain should be short enough to preclude widespread
flooding concerns. Area rivers will remain below flood stage.

&&

.PRELIMINARY POINT TEMPS/POPS...

Tallahassee   74  91  74  93  75 /  40  60  20  50  20
Panama City   76  89  77  89  78 /  30  60  20  40  20
Dothan        72  91  73  92  74 /  40  60  20  50  20
Albany        73  92  73  92  74 /  40  60  20  40  20
Valdosta      73  92  73  93  74 /  40  70  20  50  20
Cross City    73  92  73  92  75 /  30  50  20  30  20
Apalachicola  76  90  77  90  77 /  30  40  20  30  30

&&

.TAE WATCHES/WARNINGS/ADVISORIES...

FL...None.
GA...None.
AL...None.
GM...None.

&&

NEAR TERM...DVD
SHORT TERM...Barry
LONG TERM...Barry
AVIATION...DVD
MARINE...Barry
FIRE WEATHER...Harrigan
HYDROLOGY...Scholl

In the hours before

Local storm report, Jul 9, 6:14 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>
Special weather statement, Jul 9, 6:16 PM EDT, 36 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>
Local storm report, Jul 9, 6:17 PM EDT, 35 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>
Special weather statement, Jul 9, 6:18 PM EDT, 34 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>
Special weather statement, Jul 9, 6:28 PM EDT, 24 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>
Special weather statement, Jul 9, 6:52 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 Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 1:42 PM EDTSpecial Weather StatementTAECalhoun33 min
Jul 9, 3:43 PM EDTSpecial Weather StatementTAEWakulla32 min
Jul 9, 3:50 PM EDTSpecial Weather StatementTAECalhoun25 min
Jul 9, 4:03 PM EDTSevere Thunderstorm WarningTAEBay, Calhoun27 min
Jul 9, 4:18 PM EDTSpecial Weather StatementTAEWakulla27 min
Jul 9, 4:34 PM EDTSpecial Weather StatementTAEGadsden26 min
Jul 9, 4:54 PM EDTSpecial Weather StatementTAELeon36 min
Jul 9, 6:16 PM EDTSpecial Weather StatementTAEMadison44 min
Jul 9, 6:18 PM EDTSpecial Weather StatementTAEFranklin27 min
Jul 9, 5:46 PM EDTSpecial Weather StatementTAEThomas29 min
Jul 9, 5:50 PM EDTSevere Thunderstorm WarningTAEThomas25 min
Jul 9, 6:13 PM EDTSpecial Weather StatementTAEThomas47 min
Jul 9, 6:28 PM EDTSpecial Weather StatementTAEColquitt32 min
Jul 9, 7:14 PM EDTSpecial Weather StatementTAEMitchell31 min
Jul 9, 7:22 PM EDTSpecial Weather StatementTAETift38 min

Nearby

Special Weather Statements in Georgia, 2017Every special weather statement in 2017

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.