Alert archive / Georgia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 24, NWS Charleston, SC

April 2, 20094 counties in Georgia

NWS Charleston, SC issued this severe thunderstorm warning at Apr 2, 2009, 2:45 AM EDT for 4 counties in Georgia. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 2, 2009, 2:45 AM EDT (06:45 UTC)
Expired
Apr 2, 2009, 3:19 AM EDT
In force
34 min
Issued by
NWS Charleston, SC
Area
Storm-based polygon

Counties Bulloch County, GA, Effingham County, GA, Jenkins County, GA, Screven County, GA

The radar

The Charleston,SC radar (KCLX), 59 km from the middle of the area, began a volume at 06:45 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.8 hours before the alert went out and 279 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, Peachtre/Fal Fld, GA at 00:00Z on 2009-04-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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, Peachtre/Fal Fld, GA at 00:00Z on 2009-04-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.1939587897117136Sfc1 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
22 J/kg
Mixed-layer CIN
-149 J/kg
Mixed-layer LCL
885 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
121 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 2, 1:36 AM EDT, 1 hour 9 minutes earlier.

Area forecast discussion, Apr 2, 1:36 AM EDT, 1 hour 9 minutes before
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Hazardous weather outlook, Apr 1, 11:30 PM EDT, 3 hours 15 minutes before
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In the hours before

Special weather statement, Apr 2, 2:31 AM EDT, 14 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>
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        Please try again in a few minutes.
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        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 Charleston, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 1, 11:16 PM EDTMarine Dense Fog AdvisoryCHS5 hr
Apr 2, 3:55 AM EDTSmall Craft AdvisoryCHS40 hr
Apr 2, 9:46 AM EDTRiver Flood WarningCHSBurke, Emanuel, Jenkins9 days
Apr 2, 11:10 AM EDTSpecial Marine WarningCHS65 min
Apr 2, 1:14 PM EDTAreal Flood AdvisoryCHSBryan, Bulloch, Candler, Effingham, Evans, Jenkins and 4 more3 hr
Apr 2, 1:39 PM EDTFlash Flood WarningCHSEvans, Liberty, Long, Tattnall3 hr
Apr 2, 1:49 PM EDTAreal Flood AdvisoryCHSBryan, Bulloch, Candler, Effingham, Jenkins, Screven3 hr
Apr 2, 2:08 PM EDTAreal Flood AdvisoryCHSBryan, Chatham, Effingham, Liberty, Long, McIntosh3 hr
Apr 2, 3:06 PM EDTFlash Flood WarningCHSLiberty, Long, McIntosh3 hr
Apr 2, 3:43 PM EDTRiver Flood WarningCHSEvans6 days
Apr 2, 4:32 PM EDTGale WarningCHS11 hr
Apr 2, 11:46 AM EDTAreal Flood AdvisoryCHSBeaufort, Berkeley, Charleston, Colleton, Dorchester89 min
Apr 2, 1:00 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston90 min
Apr 2, 4:11 PM EDTLake Wind AdvisoryCHSBerkeley28 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2009Every severe thunderstorm warning in 2009

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.