Alert archive / Georgia / Heat Advisories in 2012

Heat Advisory 5, NWS Jacksonville, FL

July 25, 201212 counties in Georgia

NWS Jacksonville, FL issued this heat advisory at Jul 25, 2012, 3:43 AM EDT for 12 counties in Georgia. It took effect at Jul 25, 2012, 12:00 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 25, 2012, 3:43 AM EDT (07:43 UTC)
In effect from
Jul 25, 2012, 12:00 PM EDT
Expired
Jul 25, 2012, 7:00 PM EDT
In force
7 hr
Issued by
NWS Jacksonville, FL

Counties Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Camden County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Pierce County, GA, Wayne County, GA

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 00:00Z, 7.7 hours before the alert went out and 281 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, Charleston AFB, SC at 00:00Z on 2012-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3853 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, Charleston AFB, SC at 00:00Z on 2012-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 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
3853 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1026 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jacksonville, FL wrote its last area forecast discussion before this heat advisory went out at Jul 24, 8:42 PM EDT, 7 hours 1 minute earlier.

Area forecast discussion, Jul 24, 8:42 PM EDT, 7 hours 1 minute before
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Hazardous weather outlook, Jul 24, 9:00 PM EDT, 6 hours 43 minutes before
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  <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.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 2:43 PM EDTSpecial Weather StatementJAXHamilton47 min
Jul 25, 2:51 PM EDTSpecial Weather StatementJAXMarion24 min
Jul 25, 3:13 PM EDTSpecial Weather StatementJAXHamilton47 min
Jul 25, 3:18 PM EDTSpecial Weather StatementJAXMarion42 min
Jul 25, 3:38 PM EDTSpecial Weather StatementJAXSuwannee37 min
Jul 25, 3:56 PM EDTSpecial Weather StatementJAXNassau34 min
Jul 25, 3:57 PM EDTSpecial Weather StatementJAXBaker33 min
Jul 25, 4:00 PM EDTSpecial Weather StatementJAXColumbia, Suwannee45 min
Jul 25, 4:27 PM EDTSpecial Weather StatementJAXNassau33 min
Jul 25, 4:30 PM EDTSpecial Weather StatementJAXBaker45 min
Jul 25, 4:44 PM EDTSpecial Weather StatementJAXBaker, Columbia, Suwannee, Union46 min
Jul 25, 4:50 PM EDTAreal Flood AdvisoryJAXBaker, Columbia, Hamilton, Suwannee115 min
Jul 25, 5:10 PM EDTSpecial Weather StatementJAXBaker35 min
Jul 25, 5:29 PM EDTSpecial Weather StatementJAXColumbia, Union31 min
Jul 25, 2:20 PM EDTSpecial Weather StatementJAXCharlton40 min
Jul 25, 2:40 PM EDTSpecial Weather StatementJAXCharlton50 min
Jul 25, 3:16 PM EDTSpecial Weather StatementJAXBrantley44 min
Jul 25, 3:39 PM EDTSpecial Weather StatementJAXCharlton36 min
Jul 25, 6:34 PM EDTSpecial Weather StatementJAXAppling26 min
Jul 25, 6:56 PM EDTSpecial Weather StatementJAXAppling34 min

Nearby

Heat Advisories in Georgia, 2012Every heat advisory in 2012

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.