Alert archive / Georgia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 11, NWS Greenville-Spartanburg, SC

April 9, 2019Anderson County, Oconee County, South Carolina; Franklin County, Hart County, Stephens County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 9, 2019, 12:44 PM EDT for Anderson County, Oconee County, South Carolina; Franklin County, Hart County, Stephens County, Georgia. It was in force for 46 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 9, 2019, 12:44 PM EDT (16:44 UTC)
Expired: Apr 9, 2019, 1:30 PM EDT
In force: 46 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Franklin County, GA, Hart County, GA, Stephens County, GA, Anderson County, SC, Oconee County, SC

The radar

The Greer radar (KGSP), 86 km from the middle of the area, began a volume at 16:44 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 12:00Z, 4.7 hours before the alert went out and 185 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: 473 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 574 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 8, 5:15 PM EDT, 19 hours 29 minutes earlier.

Area forecast discussion, Apr 8, 5:15 PM EDT, 19 hours 29 minutes before

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Hazardous weather outlook, Apr 8, 7:50 PM EDT, 16 hours 54 minutes before

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    <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.
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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 Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 9, 2:09 PM EDT	Special Weather Statement	GSP	Transylvania	36 min
Apr 9, 2:29 PM EDT	Special Weather Statement	GSP	Transylvania	31 min
Apr 9, 2:44 PM EDT	Special Weather Statement	GSP	Transylvania	31 min
Apr 9, 3:09 PM EDT	Special Weather Statement	GSP	Macon	36 min
Apr 9, 3:12 PM EDT	Special Weather Statement	GSP	Transylvania	33 min
Apr 9, 3:19 PM EDT	Areal Flood Advisory	GSP	Transylvania	4 hr
Apr 9, 3:24 PM EDT	Special Weather Statement	GSP	McDowell	36 min
Apr 9, 3:25 PM EDT	Special Weather Statement	GSP	Burke	35 min
Apr 9, 3:31 PM EDT	Special Weather Statement	GSP	Transylvania	29 min
Apr 9, 3:35 PM EDT	Special Weather Statement	GSP	Macon	25 min
Apr 9, 3:39 PM EDT	Special Weather Statement	GSP	Polk	36 min
Apr 9, 3:44 PM EDT	Special Weather Statement	GSP	Mecklenburg	31 min
Apr 9, 3:46 PM EDT	Special Weather Statement	GSP	Lincoln	29 min
Apr 9, 3:48 PM EDT	Special Weather Statement	GSP	Transylvania	27 min
Apr 9, 3:55 PM EDT	Special Weather Statement	GSP	McDowell	35 min
Apr 9, 3:59 PM EDT	Special Weather Statement	GSP	Transylvania	31 min
Apr 9, 4:02 PM EDT	Special Weather Statement	GSP	Burke	28 min
Apr 9, 4:14 PM EDT	Special Weather Statement	GSP	Mecklenburg	31 min
Apr 9, 4:27 PM EDT	Special Weather Statement	GSP	Rutherford	33 min
Apr 9, 4:37 PM EDT	Special Weather Statement	GSP	Mecklenburg	23 min
Apr 9, 4:39 PM EDT	Special Weather Statement	GSP	Cleveland	36 min
Apr 9, 4:55 PM EDT	Special Weather Statement	GSP	Polk	35 min
Apr 9, 4:57 PM EDT	Special Weather Statement	GSP	Mecklenburg	33 min
Apr 9, 5:13 PM EDT	Special Weather Statement	GSP	Jackson, Macon	32 min
Apr 9, 1:27 PM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	17 min
Apr 9, 1:30 PM EDT	Special Weather Statement	GSP	Pickens	30 min
Apr 9, 1:44 PM EDT	Special Weather Statement	GSP	Oconee	31 min
Apr 9, 1:57 PM EDT	Special Weather Statement	GSP	Pickens	33 min
Apr 9, 12:26 PM EDT	Special Weather Statement	GSP	Franklin, Stephens	49 min
Apr 9, 1:41 PM EDT	Special Weather Statement	GSP	Rabun	49 min
Apr 9, 2:24 PM EDT	Special Weather Statement	GSP	Rabun	36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2019 Severe Thunderstorm Warnings in South Carolina, 2019 Every severe thunderstorm warning in 2019

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.