Alert archive / South Carolina / Mesoscale Discussions in 2008

Mesoscale Discussion 415

March 15, 200813 counties in Georgia; 16 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Mar 15, 2008, 7:18 AM EDT for 13 counties in Georgia; 16 counties in South Carolina. It was in force for 117 min.

The area

The outline as issued.

The facts

Issued
Mar 15, 2008, 7:18 AM EDT (11:18 UTC)
Expired
Mar 15, 2008, 9:15 AM EDT
In force
117 min
Issued by
the Storm Prediction Center
All 29 counties

Burke County, GA, Columbia County, GA, Glascock County, GA, Hancock County, GA, Jefferson County, GA, Jenkins County, GA, Lincoln County, GA, McDuffie County, GA, Richmond County, GA, Screven County, GA, Taliaferro County, GA, Warren County, GA, Wilkes County, GA, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Berkeley County, SC, Calhoun County, SC, Colleton County, SC, Dorchester County, SC, Edgefield County, SC, Greenwood County, SC, Hampton County, SC, Jasper County, SC, Lexington County, SC, McCormick County, SC, Orangeburg County, SC, Saluda County, SC

The radar

The Columbia radar (KCAE), 77 km from the middle of the area, began a volume at 11:20 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 00:00Z, 11.3 hours before the alert went out and 171 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 00:00Z on 2008-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2008-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
943 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
120 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
Mar 14, 8:11 PM EDTMesoscale DiscussionSPCBartow, Butts, Carroll, Catoosa, Chattahoochee, Chattooga and 46 more64 min
Mar 14, 11:03 PM EDTMesoscale DiscussionSPCBaldwin, Butts, Clayton, Cobb, DeKalb, Douglas and 26 more57 min
Mar 15, 1:39 AM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 7 more66 min
Mar 15, 3:57 AM EDTMesoscale DiscussionSPCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 55 more93 min
Mar 15, 4:28 AM EDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Butts, Carroll, Chattooga and 42 more3 hr
Mar 15, 10:38 AM EDTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Butts, Carroll and 43 more67 min
Mar 15, 11:02 AM EDTTornado WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Burke and 73 more8 hr
Mar 15, 1:22 PM EDTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Bibb, Burke and 67 more83 min
Mar 15, 2:21 PM EDTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bartow, Bibb, Burke and 57 more84 min
Mar 15, 3:08 PM EDTMesoscale DiscussionSPCBarrow, Carroll, Clarke, Clayton, Cobb, DeKalb and 11 more67 min
Mar 15, 3:39 PM EDTMesoscale DiscussionSPCCatoosa, Chattooga, Dade, Gordon, Murray, Walker and 1 more2 hr
Mar 15, 4:36 PM EDTTornado Watch PDSSPCBaldwin, Barrow, Bibb, Bleckley, Bryan, Bulloch and 73 more8 hr
Mar 15, 5:56 PM EDTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Bleckley and 40 more64 min
Mar 15, 6:17 PM EDTMesoscale DiscussionSPCBanks, Bartow, Cherokee, Cobb, Dawson, Floyd and 14 more28 min
Mar 15, 7:41 PM EDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Bulloch, Burke, Butts and 52 more64 min
Mar 15, 11:30 AM EDTMesoscale DiscussionSPCBerkeley, Charleston, Chesterfield, Clarendon, Darlington, Dillon and 7 more60 min

Nearby

Mesoscale Discussions in South Carolina, 2008Mesoscale Discussions in Georgia, 2008Every mesoscale discussion in 2008

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.