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Skew-T Diagram from Atlanta, GA

#21 Atlanta, Georgia

CAPE:

 Good: 1215 J/kg, no CIN. Considering low freezing level, CAPE looks good. No CIN.

Deep Layer Shear:

 Excellent: 0-6 km shear 50 knots, and 115 knots. Unidirectional however.

Mid-level Lapse Rates:

 Good: slightly better than moist adiabatic

Freezing Level:

 9.4 kft

Overall Threat of Severe Hail:

 Moderate: CAPE/shear combinations plenty high for supercells. Lapse rates in hail growth zones also good. CAPE on the low side but considering the the cool environment it's significant. This is very close to "High".

Summary of the Event:

Date of Sounding: 22 February 2005 @ 00 UTC
During the afternoon of Feb. 21, north and central Georgia was pounded by a line of supercells producing very large hail. No tornadoes were reported from any of the storms. Some statistics and specifics: 60 hail reports, some up to baseball in size. Metro Atlanta was especially hit hard, between 00:30 and 1:00 UTC, causing millions of dollars in damage.
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