Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 837

May 8, 2003Barbour County, Lee County, Russell County, Alabama; 12 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at May 8, 2003, 12:04 AM CDT for Barbour County, Lee County, Russell County, Alabama; 12 counties in Georgia. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: May 8, 2003, 12:04 AM CDT (05:04 UTC)
Expired: May 8, 2003, 1:00 AM CDT
In force: 56 min
Issued by: the Storm Prediction Center

Counties Barbour County, AL, Lee County, AL, Russell County, AL, Chattahoochee County, GA, Dooly County, GA, Macon County, GA, Marion County, GA, Muscogee County, GA, Peach County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Webster County, GA

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 5.1 hours before the alert went out and 199 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: 2242 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 809 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 8.2

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.

Issued	Product	Office	Counties	Lasted
May 7, 7:32 PM CDT	Mesoscale Discussion	SPC	Barbour, Bullock, Chambers, Coosa, Crenshaw, Elmore and 6 more	58 min
May 7, 7:50 PM CDT	Tornado Watch	SPC	Barbour, Chambers, Lee, Russell	5 hr
May 7, 10:09 PM CDT	Mesoscale Discussion	SPC	Barbour, Chambers, Lee, Russell	96 min
May 8, 1:18 AM CDT	Mesoscale Discussion	SPC	Autauga, Barbour, Bibb, Bullock, Chilton, Elmore and 7 more	3 hr
May 8, 2:56 AM CDT	Mesoscale Discussion	SPC	Chambers, Clay, Randolph, Talladega	3 hr

Nearby

Mesoscale Discussions in Georgia, 2003 Mesoscale Discussions in Alabama, 2003 Every mesoscale discussion in 2003

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.