Alert archive / Georgia / Heat Advisories in 2014

Heat Advisory 4, NWS Tallahassee, FL

August 20, 201416 counties in Florida; 26 counties in Georgia; 5 counties in Alabama

NWS Tallahassee, FL issued this heat advisory at Aug 20, 2014, 7:08 PM CDT for 16 counties in Florida; 26 counties in Georgia; 5 counties in Alabama. It took effect at Aug 21, 2014, 11:00 AM CDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Aug 20, 2014, 7:08 PM CDT (00:08 UTC)
In effect from
Aug 21, 2014, 11:00 AM CDT
Expired
Aug 22, 2014, 7:07 AM CDT
In force
20 hr
Issued by
NWS Tallahassee, FL
All 47 counties

Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 66 km from the middle of the area, began a volume at 00:10 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.

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Aug 20, 1:33 PM CDT, 5 hours 35 minutes earlier.

Area forecast discussion, Aug 20, 1:33 PM CDT, 5 hours 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TALLAHASSEE FL
233 PM EDT Wed Aug 20 2014

.Near Term [Through Tonight]...
As high pressure continues to build over the southeast, drier,
hotter conditions are on tap for today and through the week. The
sea-breeze showers and thunderstorms have had a later start today
and will also have lower coverage than yesterday, staying mostly in
north Florida. Since there won't be as heavy cloud cover with high
pressure building and with delayed storm onset, temperatures will
clime to the mid to upper 90s today, low 90s along the coastline.
Tonight, lows will be in the mid 70s.

.Short Term [Thursday Through Friday Night]...
High pressure will continue to build across the region aloft and at
the surface, resulting in very hot conditions. Highs will be at
near record levels in the upper 90s to near 101 both days with
heat indices in the 105-110 range. In additional, anomalously high
850 temperatures will rise to 21-22C by Friday, so unless
dewpoints mix out into the lower 70s, a Heat Advisory is a given
for much of our forecast area Thursday and especially Friday.
Overnight lows will be warm in the mid 70s. Precipitation will be
below normal as will sky cover, with showers and isolated
thunderstorms confined to Florida zones focused along the
afternoon sea-breeze.

.Long Term [Saturday Through Wednesday]...
It will continue to be hot and relatively dry over the coming
weekend as ridging persists and builds inland. With this fairly long
stretch of hot days and mild nights Heat Advisories are again
likely, although heat indices will become more dependant upon
afternoon cloudiness as we move into the early part of the week. An
east-west surface trough will begin to settle south across the
region late in the weekend into early next week as an upper level
trough digs southward across the western Atlantic on the front side
of the strong upper ridge. This may increase precipitation chances
early in the week as well as cloud cover which would suppress
daytime heating somewhat. The main story will be what happens
midweek into the latter part of next week with the potential
development of a tropical system moving into the Gulf. Global
models are not in agreement with each other, nor are they showing
much run-to-run consistency at this time, but this will be
monitored carefully in the next several days.

&&

.Aviation...
[Through 18Z Thursday] VFR conditions will prevail through the
forecast period. Thunderstorm activity should be more limited today,
with KTLH and KECP having the best chance of any impacts. MVFR/IFR
cigs and vsbys possible once again tomorrow morning at VLD.

&&

.Marine...
Light to occasionally moderate west winds will continue into the
upcoming weekend. Seas will remain in the 1 to 2 foot range.

&&

.Fire Weather...
Despite drier air moving into the area, relative humidities will
remain above red flag criteria through the week. No red flag
conditions are expected.

&&

.Hydrology...
Rainfall totals ranged from 1 to 3 inches yesterday. The next few
days will be drier with no significant rain expected. With all area
rivers below action stage, no flooding is expected.

&&

.Preliminary Point Temps/PoPs...

Tallahassee   74  98  75 100  76 /  10  30  10  20  10
Panama City   78  97  78  97  79 /  10  20  10  20  10
Dothan        74  99  76  99  75 /  20  20  10  20  10
Albany        75 100  76 100  75 /  10  20  10  20  10
Valdosta      74 100  74 100  75 /  10  20  10  20  10
Cross City    74  98  74  97  75 /  10  30  10  20  10
Apalachicola  76  94  77  95  79 /  10  20  10  20  10

&&

.TAE Watches/Warnings/Advisories...

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

&&

NEAR TERM...MOORE
SHORT TERM...HOLLINGSWORTH
LONG TERM...HOLLINGSWORTH
AVIATION...MOORE
MARINE...HOLLINGSWORTH
FIRE WEATHER...MOORE
HYDROLOGY...WESTON

In the hours before

Local storm report, Aug 20, 6:06 PM CDT, 1 hour 2 minutes before
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Local storm report, Aug 20, 6:13 PM CDT, 55 minutes before
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Local storm report, Aug 20, 6:47 PM CDT, 21 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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <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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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 4:19 PM CDTSevere Thunderstorm WarningTAEJefferson, Leon26 min
Aug 21, 4:38 PM CDTSevere Thunderstorm WarningTAEJefferson37 min
Aug 21, 5:17 PM CDTSevere Thunderstorm WarningTAETaylor28 min
Aug 21, 6:01 PM CDTSpecial Marine WarningTAE89 min
Aug 21, 6:07 PM CDTSpecial Marine WarningTAE83 min
Aug 21, 2:54 PM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Dougherty, Mitchell36 min
Aug 21, 3:00 PM CDTSevere Thunderstorm WarningTAERandolph30 min
Aug 21, 4:29 PM CDTSevere Thunderstorm WarningTAEEarly31 min
Aug 21, 6:17 PM CDTSevere Thunderstorm WarningTAELowndes13 min

Nearby

Heat Advisories in Georgia, 2014Heat Advisories in Florida, 2014Heat Advisories in Alabama, 2014Every heat advisory in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.