Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Jacksonville, FL

June 24, 2020Charlton County, Georgia

NWS Jacksonville, FL issued this special weather statement at Jun 24, 2020, 3:08 PM EDT for Charlton County, Georgia. It was in force for 52 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 24, 2020, 3:08 PM EDT (19:08 UTC)
Expired
Jun 24, 2020, 4:00 PM EDT
In force
52 min
Issued by
NWS Jacksonville, FL

County Charlton County, GA

The radar

The Jacksonville radar (KJAX), 53 km from the middle of the area, began a volume at 19:09 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, 7.1 hours before the alert went out and 209 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 2020-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 421 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 2020-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
421 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1329 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
102 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 Jacksonville, FL wrote its last area forecast discussion before this special weather statement went out at Jun 24, 1:46 PM EDT, 1 hour 22 minutes earlier.

Area forecast discussion, Jun 24, 1:46 PM EDT, 1 hour 22 minutes before
Area Forecast Discussion
National Weather Service Jacksonville FL
146 PM EDT Wed Jun 24 2020

.Short Term.../through Sunday/...

A surface trough and an upper short wave will combine with diurnal
instability to generate scattered to numerous storms this afternoon
and evening. The best chance for this activity will be over SE GA
closer to the best axis of the upper wave. A west to east convergent
band has developed near the GA/FL line as low level flow over NE FL
is largely southwest, and flow over SE GA west northwest. This band
will be initial focus for afternoon activity, with coverage then
spreading across SE GA. Convective activity will decrease later this
evening, with loss of diurnal heating. Surface high pressure will
build across the region Thursday into Friday. A series of 500mb
short waves will move east across SE GA Thursday into Friday. While
the surface high will provide subsidence, diurnal heating coupled
with additional instability provided by upper wave will yield
convective chances, but the chance will be lower than normal.

On Saturday and Sunday, surface high pressure remains in place.
Convective chances will remain a little below normal, with isolated
to scattered activity initiating due to sea breeze interactions and
diurnal instability. Weak upper short wave energy will add to the
afternoon instability.

Temperatures will trend above normal through this period. The
warmest day for coastal communities will be Thursday, as the
westerly flow will help keep the sea breeze from pushing too far
inland. The sea breeze will have an easier time pushing inland
Friday, as the flow is more onshore, and will continue to move
inland over the weekend as the flow becomes more southerly. So for
Thursday, lower to mid 90s to extend east of I95, with highs closer
to 90 east of I95 over the weekend.

&&

.Long Term.../Sunday night through Wednesday/...

The region will be between an elongated area of high pressure
extending across south Florida and a trough that will linger
over the southeastern US this period. The upper flow will be fairly
flat Monday, so convective initiation will be driven by diurnal
instability and sea breeze interactions. On Tuesday and Wednesday,
an upper trough moves into region which will help destabilize the
airmass, leading to enhanced chances for convection.

Temperatures will trend above normal this period.

&&

.Marine...

Surface high pressure will be over the region through the weekend,
then become centered to the east southeast early next week. A trough
of low pressure will persist across the southeastern US early next
week.

Rip Currents: SE GA: Moderate risk on Thursday
              NE FL: Moderate risk on Thursday

&&

.PRELIMINARY POINT TEMPS/POPS...

AMG  70  91  72  93  73 /  60  20  10  20  10
SSI  74  90  76  90  76 /  40  20  10  10  10
JAX  72  96  75  96  75 /  30  20  10  10  10
SGJ  74  93  75  91  75 /  40  20  10  10  10
GNV  73  96  73  97  74 /   0  20   0  20  10
OCF  72  96  73  97  74 /   0  20   0  20  10

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...None.
GA...None.
AM...None.
&&

In the hours before

Special weather statement, Jun 24, 3:08 PM EDT, 0 minutes before
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<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.
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        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 3:40 PM EDTSpecial Weather StatementJAXDuval35 min
Jun 24, 3:48 PM EDTSpecial Marine WarningJAX87 min
Jun 24, 4:32 PM EDTSpecial Marine WarningJAX58 min
Jun 24, 5:00 PM EDTSpecial Marine WarningJAX90 min
Jun 24, 5:44 PM EDTSevere Thunderstorm WarningJAXBaker, Nassau46 min
Jun 24, 5:57 PM EDTSpecial Weather StatementJAXPutnam33 min
Jun 24, 6:15 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau45 min
Jun 24, 6:18 PM EDTSpecial Marine WarningJAX87 min
Jun 24, 6:26 PM EDTSevere Thunderstorm WarningJAXNassau34 min
Jun 24, 6:31 PM EDTSpecial Marine WarningJAX59 min
Jun 24, 6:33 PM EDTSpecial Weather StatementJAXFlagler42 min
Jun 24, 6:39 PM EDTSevere Thunderstorm WarningJAXDuval, Nassau36 min
Jun 24, 6:51 PM EDTSevere Thunderstorm WarningJAXNassau39 min
Jun 24, 7:03 PM EDTSpecial Marine WarningJAX117 min
Jun 24, 7:10 PM EDTSpecial Weather StatementJAXFlagler50 min
Jun 24, 7:15 PM EDTSpecial Weather StatementJAXClay45 min
Jun 24, 7:20 PM EDTSevere Thunderstorm WarningJAXFlagler25 min
Jun 24, 7:34 PM EDTSpecial Weather StatementJAXDuval26 min
Jun 24, 7:38 PM EDTSpecial Marine WarningJAX82 min
Jun 24, 3:53 PM EDTSevere Thunderstorm WarningJAXAtkinson, Clinch52 min
Jun 24, 3:59 PM EDTSpecial Weather StatementJAXLanier46 min
Jun 24, 4:20 PM EDTSpecial Weather StatementJAXClinch40 min
Jun 24, 4:24 PM EDTSpecial Weather StatementJAXWare51 min
Jun 24, 4:35 PM EDTSpecial Weather StatementJAXAtkinson40 min
Jun 24, 4:40 PM EDTSpecial Weather StatementJAXEchols35 min
Jun 24, 5:08 PM EDTSpecial Weather StatementJAXClinch37 min
Jun 24, 5:20 PM EDTSevere Thunderstorm WarningJAXCharlton, Clinch, Echols, Ware40 min
Jun 24, 5:27 PM EDTSpecial Weather StatementJAXPierce48 min
Jun 24, 5:59 PM EDTSpecial Weather StatementJAXBrantley46 min

Nearby

Special Weather Statements in Georgia, 2020Every special weather statement in 2020

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.