Alert archive / Georgia / Heat Advisories in 2012

Heat Advisory 7, NWS Jacksonville, FL

July 27, 201212 counties in Georgia

NWS Jacksonville, FL issued this heat advisory at Jul 27, 2012, 2:25 AM EDT for 12 counties in Georgia. It took effect at Jul 27, 2012, 12:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jul 27, 2012, 2:25 AM EDT (06:25 UTC)
In effect from: Jul 27, 2012, 12:00 PM EDT
Expired: Jul 27, 2012, 8:00 PM EDT
In force: 8 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

Jacksonville, FL (KJAX), launched 00:00Z, 6.4 hours before the alert went out and 109 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2979 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: -20 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 26, 9:14 PM EDT, 5 hours 11 minutes earlier.

Area forecast discussion, Jul 26, 9:14 PM EDT, 5 hours 11 minutes before

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Hazardous weather outlook, Jul 26, 8:45 PM EDT, 5 hours 40 minutes before

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In the hours before

Local storm report, Jul 26, 8:35 PM EDT, 5 hours 50 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 Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 27, 6:41 AM EDT	Special Weather Statement	JAX	Coffee	34 min
Jul 27, 7:21 AM EDT	Special Weather Statement	JAX	Jeff Davis	39 min
Jul 27, 3:57 PM EDT	Special Weather Statement	JAX	Atkinson, Coffee	48 min
Jul 27, 5:49 PM EDT	Special Weather Statement	JAX	Appling	26 min

Nearby

Heat Advisories in Georgia, 2012 Every 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.