Alert archive / Georgia / Mesoscale Discussions in 2003

Mesoscale Discussion 1050

May 17, 200345 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at May 17, 2003, 6:13 PM EDT for 45 counties in Georgia. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: May 17, 2003, 6:13 PM EDT (22:13 UTC)
Expired: May 17, 2003, 8:15 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 45 counties

Banks County, GA, Barrow County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Cherokee County, GA, Clarke County, GA, Columbia County, GA, Dawson County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Fannin County, GA, Forsyth County, GA, Franklin County, GA, Gilmer County, GA, Glascock County, GA, Greene County, GA, Gwinnett County, GA, Habersham County, GA, Hall County, GA, Hancock County, GA, Hart County, GA, Jackson County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lincoln County, GA, Lumpkin County, GA, Madison County, GA, McDuffie County, GA, Morgan County, GA, Oconee County, GA, Oglethorpe County, GA, Pickens County, GA, Putnam County, GA, Richmond County, GA, Screven County, GA, Stephens County, GA, Taliaferro County, GA, Walton County, GA, Warren County, GA, Washington County, GA, White County, GA, Wilkes County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 10.2 hours before the alert went out and 146 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: 1351 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 593 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.5

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 17, 10:20 AM EDT	Tornado Watch	SPC	Catoosa, Chattooga, Dade, Walker, Whitfield	6 hr
May 17, 11:45 AM EDT	Mesoscale Discussion	SPC	Bibb, Butts, Calhoun, Carroll, Chattahoochee, Clay and 32 more	90 min
May 17, 2:00 PM EDT	Tornado Watch	SPC	Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 85 more	6 hr

Nearby

Mesoscale Discussions in Georgia, 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.