Alert archive / Georgia / Mesoscale Discussions in 2003
Mesoscale Discussion 698
The Storm Prediction Center issued this mesoscale discussion at May 2, 2003, 9:18 PM EDT for 65 counties in Georgia. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- May 2, 2003, 9:18 PM EDT (01:18 UTC)
- Expired
- May 2, 2003, 10:45 PM EDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 65 counties
Baldwin County, GA, Barrow County, GA, Bartow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Chattahoochee County, GA, Cherokee County, GA, Clarke County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Douglas County, GA, Elbert County, GA, Fayette County, GA, Forsyth County, GA, Fulton County, GA, Greene County, GA, Gwinnett County, GA, Hancock County, GA, Harris County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Macon County, GA, Madison County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Paulding County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA
The radar
The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 01:17 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, 1.3 hours before the alert went out and 55 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.
- Mixed-layer CAPE
- 2666 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
574 ACUS11 KWNS 030118 SWOMCD SPC MCD 030118 SCZ000-GAZ000-ALZ000-030245- MESOSCALE DISCUSSION 0698 NWS STORM PREDICTION CENTER NORMAN OK 0818 PM CDT FRI MAY 02 2003 AREAS AFFECTED...NRN AND CNTRL GA CONCERNING...SEVERE THUNDERSTORM WATCH 215... VALID 030118Z - 030245Z PRIMARILY A DAMAGING WIND THREAT WILL CONTINUE ACROSS CNTRL AND SRN PORTIONS OF WW0215 FOR THE NEXT FEW HOURS. REGIONAL RADAR IMAGERY SHOWS A QUASI-LINEAR MCS DEVELOPING FROM NERN GA NEAR AGS WWD INTO E-CNTRL AL MOVING SEWD AT AROUND 35KTS. THE 00Z FFC /ATLANTA/ AND TLH SOUNDINGS INDICATED A VERY UNSTABLE AIRMASS IN PLACE AHEAD OF THIS DEVELOPING SYSTEM WITH MLCAPES OF 2500-3500 J/KG. ALTHOUGH DEEP-LAYER SHEAR REMAINS SUFFICIENT FOR ORGANIZED TSTMS...INCLUDING EMBEDDED SUPERCELLS...CLOSE INSPECTION OF REFLECTIVITY DATA INDICATES THAT THE GUST FRONT HAS SURGED AHEAD OF THE ASSOCIATED CONVECTIVE LINE BY 10-20 MILES. THIS WILL LIKELY LIMIT THE POTENTIAL FOR A MORE WIDESPREAD WIND EVENT. HOWEVER... POCKETS OF WIND DAMAGE REMAIN POSSIBLE WITH A BOWING STRUCTURE CURRENTLY OVER W-CNTRL GA. ..MEAD.. 05/03/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...CAE...GSP...FFC...TAE...BMX... 32118516 32578511 33278509 33828501 34088502 34258499 34288491 34258409 34208313 34208268 34258250 34068259 33308265 32548277 32148282 31968283 31938323 31928503
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 11:10 PM EDT | Severe Thunderstorm Watch | SPC | Appling, Atkinson, Bacon, Ben Hill, Berrien, Brantley and 18 more | 3 hr |
| May 3, 9:45 AM EDT | Mesoscale Discussion | SPC | Decatur, Seminole | 2 hr |
| May 3, 2:57 PM EDT | Mesoscale Discussion | SPC | Franklin, Habersham, Hart, Rabun, Stephens, Towns and 2 more | 3 hr |
| May 3, 6:40 PM EDT | Severe Thunderstorm Watch | SPC | Burke, Columbia, Lincoln, Richmond | 4 hr |
Nearby
Mesoscale Discussions in Georgia, 2003Every 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; radar from the NEXRAD Level II archive.