Alert archive / Georgia / Mesoscale Discussions in 2004

Mesoscale Discussion 1014

May 31, 200423 counties in Alabama; 26 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at May 31, 2004, 5:31 AM CDT for 23 counties in Alabama; 26 counties in Georgia. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: May 31, 2004, 5:31 AM CDT (10:31 UTC)
Expired: May 31, 2004, 7:30 AM CDT
In force: 119 min
Issued by: the Storm Prediction Center

All 49 counties

Autauga County, AL, Bibb County, AL, Calhoun County, AL, Chambers County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Elmore County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lee County, AL, Perry County, AL, Pickens County, AL, Randolph County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Butts County, GA, Carroll County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Douglas County, GA, Fayette County, GA, Fulton County, GA, Gwinnett County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Lamar County, GA, Meriwether County, GA, Monroe County, GA, Newton County, GA, Paulding County, GA, Pike County, GA, Rockdale County, GA, Spalding County, GA, Talbot County, GA, Troup County, GA, Upson County, GA

The radar

The Birmingham radar (KBMX), 33 km from the middle of the area, began a volume at 10:35 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

Birmingham, AL (KBMX), launched 00:00Z, 10.5 hours before the alert went out and 34 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: 1655 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1411 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 9.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

867 
ACUS11 KWNS 311032
SWOMCD
SPC MCD 311031 
GAZ000-ALZ000-MSZ000-311230-

MESOSCALE DISCUSSION 1014
NWS STORM PREDICTION CENTER NORMAN OK
0531 AM CDT MON MAY 31 2004

AREAS AFFECTED...CNTRL AL/WRN GA

CONCERNING...TORNADO WATCH 350...

VALID 311031Z - 311230Z

SQUALL LINE MOVING ESEWD AT 45-50KT ACROSS CNTRL AL THIS MORNING.
AIRMASS AHEAD OF THE CONVECTION WAS VERY MOIST AND UNSTABLE WITH
MLCAPE AROUND 1000 J/KG. MODEST PRESSURE RISES WITHIN TRAILING
STRATIFORM COLD POOL REGION BEHIND THE LINE SHOULD MAINTAIN
MESOSCALE ASCENT ALONG THE LEADING EDGE. MAGNITUDE OF INSTABILITY
FEEDING THE CONVECTION AND STRONG 50-70KT MID LEVEL REAR INFLOW JET
OBSERVED ON VWP DATA FROM NRN MS WILL FAVOR A CONTINUING DAMAGING
WIND THREAT ACROSS THE ERN PARTS OF TORNADO WATCH 350 OVER THE NEXT
1-2 HOURS.

..CARBIN.. 05/31/2004

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...FFC...BMX...MOB...JAN...

32248834 33708831 34088376 32658376

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 8:54 PM CDT	Mesoscale Discussion	SPC	Colbert, Franklin, Lamar, Lauderdale, Lawrence, Limestone and 2 more	66 min
May 30, 9:15 PM CDT	Tornado Watch	SPC	Blount, Colbert, Cullman, DeKalb, Etowah, Fayette and 13 more	7 hr
May 30, 11:05 PM CDT	Mesoscale Discussion	SPC	Colbert, Franklin, Jackson, Lauderdale, Lawrence, Limestone and 4 more	55 min
May 31, 12:40 AM CDT	Tornado Watch	SPC	Cherokee	5 hr
May 31, 1:06 AM CDT	Mesoscale Discussion	SPC	Blount, Cullman, DeKalb, Etowah, Fayette, Franklin and 11 more	84 min
May 31, 3:40 AM CDT	Mesoscale Discussion	SPC	Cherokee	95 min
May 31, 3:45 AM CDT	Tornado Watch	SPC	Autauga, Bibb, Calhoun, Chambers, Chilton, Clay and 17 more	5 hr
May 31, 9:21 AM CDT	Mesoscale Discussion	SPC	Baldwin, Coffee, Conecuh, Covington, Crenshaw, Dale and 8 more	54 min
May 31, 10:00 AM CDT	Tornado Watch	SPC	Baldwin, Coffee, Conecuh, Covington, Dale, Escambia and 5 more	6 hr
May 31, 1:06 PM CDT	Mesoscale Discussion	SPC	Baldwin, Coffee, Conecuh, Covington, Dale, Escambia and 5 more	54 min
May 31, 3:30 PM CDT	Tornado Watch	SPC	Dale, Geneva, Henry, Houston	4 hr
May 31, 8:10 AM CDT	Severe Thunderstorm Watch	SPC	Burke, Columbia, Elbert, Glascock, Greene, Hancock and 12 more	5 hr
May 31, 10:18 AM CDT	Mesoscale Discussion	SPC	Appling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 27 more	27 min
May 31, 10:40 AM CDT	Severe Thunderstorm Watch	SPC	Appling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 25 more	6 hr
May 31, 1:27 PM CDT	Mesoscale Discussion	SPC	Atkinson, Brantley, Chatham, Clinch, Echols, Lanier and 6 more	63 min
May 31, 2:10 PM CDT	Severe Thunderstorm Watch	SPC	Camden, Charlton	5 hr
May 31, 5:28 PM CDT	Mesoscale Discussion	SPC	Camden, Charlton	92 min
May 31, 5:59 PM CDT	Mesoscale Discussion	SPC	Ben Hill, Berrien, Brooks, Colquitt, Cook, Irwin and 5 more	61 min
May 31, 6:30 PM CDT	Tornado Watch	SPC	Charlton, Echols	4 hr

Nearby

Mesoscale Discussions in Georgia, 2004 Mesoscale Discussions in Alabama, 2004 Every mesoscale discussion in 2004

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.