Alert archive / Georgia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 46, NWS Jacksonville, FL

May 27, 1997Jeff Davis County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at May 27, 1997, 1:23 PM EDT for Jeff Davis County, Georgia. It was in force for 37 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 27, 1997, 1:23 PM EDT (17:23 UTC)
Expired: May 27, 1997, 2:00 PM EDT
In force: 37 min
Issued by: NWS Jacksonville, FL
Area: Whole counties

County Jeff Davis County, GA

The radar

The Moody AFB radar (KVAX), 108 km from the middle of the area, began a volume at 17:23 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 was reported inside it

Time	Report	Where	Remark
May 27, 1:45 PM EDT	Hail 1	Denton, GA

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 27, 12:15 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 5.4 hours before the alert went out and 170 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: 1370 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 909 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 27, 11:55 AM EDT, 1 hour 28 minutes earlier.

Area forecast discussion, May 27, 11:55 AM EDT, 1 hour 28 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 Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 4:04 PM EDT	Severe Thunderstorm Warning	JAX	Clay	56 min
May 27, 4:11 PM EDT	Severe Thunderstorm Warning	JAX	Putnam, Saint Johns	49 min
May 27, 4:23 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Suwannee	67 min
May 27, 4:34 PM EDT	Severe Thunderstorm Warning	JAX	Flagler	56 min
May 27, 4:56 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Nassau	64 min
May 27, 5:04 PM EDT	Severe Thunderstorm Warning	JAX	Hamilton	56 min
May 27, 5:07 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion	53 min
May 27, 5:11 PM EDT	Severe Thunderstorm Warning	JAX	Clay	49 min
May 27, 5:31 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Suwannee	59 min
May 27, 5:51 PM EDT	Tornado Warning	JAX	Duval	39 min
May 27, 6:03 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	42 min
May 27, 6:11 PM EDT	Tornado Warning	JAX	Columbia	34 min
May 27, 6:15 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Bradford, Union	60 min
May 27, 6:23 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Gilchrist	67 min
May 27, 12:33 PM EDT	Severe Thunderstorm Warning	JAX	Jeff Davis	42 min
May 27, 1:15 PM EDT	Severe Thunderstorm Warning	JAX	Bacon, Coffee	60 min
May 27, 2:28 PM EDT	Severe Thunderstorm Warning	JAX	Pierce, Ware, Wayne	62 min
May 27, 3:01 PM EDT	Severe Thunderstorm Warning	JAX	Clinch	59 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1997 Every severe thunderstorm warning in 1997

Sources

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