Alert archive / South Carolina / Mesoscale Discussions in 2004

Mesoscale Discussion 2185

September 7, 200410 counties in Georgia; 10 counties in North Carolina; 44 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Sep 7, 2004, 6:07 PM EDT for 10 counties in Georgia; 10 counties in North Carolina; 44 counties in South Carolina. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Sep 7, 2004, 6:07 PM EDT (22:07 UTC)
Expired
Sep 7, 2004, 7:00 PM EDT
In force
53 min
Issued by
the Storm Prediction Center
All 64 counties

Bryan County, GA, Bulloch County, GA, Burke County, GA, Columbia County, GA, Effingham County, GA, Jenkins County, GA, Liberty County, GA, Lincoln County, GA, Richmond County, GA, Screven County, GA, Anson County, NC, Bladen County, NC, Brunswick County, NC, Columbus County, NC, Cumberland County, NC, Hoke County, NC, Richmond County, NC, Robeson County, NC, Scotland County, NC, Union County, NC, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Anderson County, SC, Bamberg County, SC, Barnwell County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Greenville County, SC, Greenwood County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Kershaw County, SC, Lancaster County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Orangeburg County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, Williamsburg County, SC, York County, SC

The radar

The Columbia radar (KCAE), 103 km from the middle of the area, began a volume at 22:07 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 10.1 hours before the alert went out and 85 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 12:00Z on 2004-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2597 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2004-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
2597 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 7, 12:30 AM EDTMesoscale DiscussionSPCBrantley, Bryan, Bulloch, Camden, Chatham, Effingham and 7 more2 hr
Sep 7, 3:22 AM EDTMesoscale DiscussionSPCBrantley, Bryan, Bulloch, Camden, Charlton, Chatham and 8 more83 min
Sep 7, 4:00 AM EDTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 15 more10 hr
Sep 7, 5:30 AM EDTMesoscale DiscussionSPCFannin, Gilmer, Murray, Rabun, Towns, Union3 hr
Sep 7, 7:34 AM EDTMesoscale DiscussionSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 15 more116 min
Sep 7, 11:29 AM EDTMesoscale DiscussionSPCBryan, Bulloch, Burke, Candler, Columbia, Effingham and 28 more91 min
Sep 7, 11:55 AM EDTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 12 more7 hr
Sep 7, 3:19 PM EDTMesoscale DiscussionSPCAppling, Bryan, Bulloch, Burke, Candler, Chatham and 28 more116 min
Sep 7, 6:40 PM EDTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 11 more6 hr
Sep 7, 1:45 PM EDTTornado WatchSPCBladen, Brunswick, Columbus, Cumberland, Harnett, Hoke and 3 more5 hr

Nearby

Mesoscale Discussions in South Carolina, 2004Mesoscale Discussions in Georgia, 2004Mesoscale Discussions in North Carolina, 2004Every mesoscale discussion in 2004

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.