Alert archive / Georgia / Mesoscale Discussions in 2008

Mesoscale Discussion 560

April 4, 20085 counties in Alabama; 51 counties in Georgia; 4 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Apr 4, 2008, 7:12 PM CDT for 5 counties in Alabama; 51 counties in Georgia; 4 counties in South Carolina. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
Apr 4, 2008, 7:12 PM CDT (00:12 UTC)
Expired
Apr 4, 2008, 8:15 PM CDT
In force
63 min
Issued by
the Storm Prediction Center
All 60 counties

Bullock County, AL, Lee County, AL, Macon County, AL, Montgomery County, AL, Russell County, AL, Baldwin County, GA, Banks County, GA, Barrow County, GA, Bibb County, GA, Butts County, GA, Chattahoochee County, GA, Clarke County, GA, Crawford County, GA, Elbert County, GA, Franklin County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Hart County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Jones County, GA, Lamar County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stephens County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Wilkes County, GA, Wilkinson County, GA, Abbeville County, SC, Anderson County, SC, Oconee County, SC, Pickens County, SC

The radar

The Atlanta radar (KFFC), 34 km from the middle of the area, began a volume at 00:12 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, 0.2 hours before the alert went out and 28 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 2008-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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 2008-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -98 square meters per square second.19395878Sfc1 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
105 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-98 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.6

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
Apr 4, 7:18 PM CDTMesoscale DiscussionSPCBaldwin, Barbour, Bullock, Butler, Clarke, Coffee and 18 more87 min
Apr 4, 10:37 PM CDTMesoscale DiscussionSPCBaldwin, Conecuh, Covington, Escambia, Mobile83 min
Apr 4, 7:35 PM CDTMesoscale DiscussionSPCColumbia, Glascock, Jefferson, Lincoln, McDuffie, Richmond and 1 more115 min
Apr 5, 9:45 AM CDTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Berrien, Brantley, Brooks and 28 more90 min
Apr 5, 10:25 AM CDTSevere Thunderstorm WatchSPCAppling, Atkinson, Bacon, Berrien, Brantley, Brooks and 37 more9 hr
Apr 5, 12:47 PM CDTMesoscale DiscussionSPCBrantley, Bryan, Camden, Charlton, Chatham, Echols and 8 more88 min
Apr 5, 5:41 PM CDTMesoscale DiscussionSPCCharlton94 min
Apr 4, 10:52 PM CDTMesoscale DiscussionSPCAiken, Calhoun, Chesterfield, Darlington, Dillon, Edgefield and 10 more53 min

Nearby

Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in South Carolina, 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.