Alert archive / Georgia / Mesoscale Discussions in 2003
Mesoscale Discussion 2525
The Storm Prediction Center issued this mesoscale discussion at Nov 18, 2003, 1:59 PM CST for 29 counties in Alabama; 12 counties in Florida; 46 counties in Georgia. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Nov 18, 2003, 1:59 PM CST (19:59 UTC)
- Expired
- Nov 18, 2003, 3:30 PM CST
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 87 counties
Autauga County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Talladega County, AL, Tallapoosa County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Holmes County, FL, Jackson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Bartow County, GA, Calhoun County, GA, Carroll County, GA, Chattahoochee County, GA, Cherokee County, GA, Clay County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Decatur County, GA, DeKalb County, GA, Dougherty County, GA, Douglas County, GA, Early County, GA, Fayette County, GA, Floyd County, GA, Fulton County, GA, Gordon County, GA, Grady County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Murray County, GA, Muscogee County, GA, Paulding County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Troup County, GA, Upson County, GA, Webster County, GA
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.0 hours before the alert went out and 107 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
- 22 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 560 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 266 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
430 ACUS11 KWNS 182000 SWOMCD SPC MCD 181959 GAZ000-FLZ000-TNZ000-ALZ000-182130- MESOSCALE DISCUSSION 2525 NWS STORM PREDICTION CENTER NORMAN OK 0159 PM CST TUE NOV 18 2003 AREAS AFFECTED...WRN GA / FL PANHANDLE... CONCERNING...TORNADO WATCH 960... VALID 181959Z - 182130Z CONVECTIVE LINE CONTINUES MOVING EWD ACROSS NRN PORTIONS OF WW...WHILE MORE SCATTERED STORMS CONTINUE TO DEVELOP / MOVE NWD ACROSS THE FL PANHANDLE AND SERN AL. SEVERE THREAT CONTINUES ACROSS ERN HALF OF WW...AND NEW WW MAY BE REQUIRED EAST OF CURRENT WATCH WITHIN THE NEXT 1 TO 2 HOURS. ALTHOUGH INSTABILITY REMAINS LIMITED ACROSS MUCH OF THE REGION...DEEP-LAYER WIND FIELD REMAINS QUITE STRONG -- SUPPORTIVE OF A CONTINUED THREAT FOR DAMAGING WINDS AND ISOLATED TORNADOES. MOST UNSTABLE AIRMASS REMAINS WITHIN CURRENT WW...WITH WEAKER INSTABILITY OVER THE FL PANHANDLE AND PARTICULARLY WRN GA. HOWEVER...GIVEN STRENGTH OF WIND FIELD...THREAT MAY EXTEND EWD INTO GA AND THE CENTRAL AND ERN FL PANHANDLE WITHIN THE NEXT COUPLE OF HOURS. ..GOSS.. 11/18/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...MRX...FFC...TAE...BMX...MOB... 35058472 34208418 30508419 29918526 30448764 33508623
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 18, 6:08 AM CST | Mesoscale Discussion | SPC | Choctaw, Colbert, Franklin, Lamar, Marion, Pickens and 1 more | 2 hr |
| Nov 18, 6:55 AM CST | Tornado Watch | SPC | Choctaw, Colbert, Fayette, Franklin, Greene, Lamar and 9 more | 5 hr |
| Nov 18, 8:58 AM CST | Mesoscale Discussion | SPC | Baldwin, Butler, Coffee, Conecuh, Covington, Crenshaw and 4 more | 92 min |
| Nov 18, 10:30 AM CST | Mesoscale Discussion | SPC | Baldwin, Bibb, Blount, Butler, Chilton, Choctaw and 26 more | 90 min |
| Nov 18, 11:25 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Bibb, Blount, Butler, Calhoun and 38 more | 6 hr |
| Nov 18, 1:33 PM CST | Mesoscale Discussion | SPC | DeKalb, Jackson, Madison | 57 min |
| Nov 18, 1:55 PM CST | Tornado Watch | SPC | DeKalb, Jackson | 5 hr |
| Nov 18, 4:31 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Butler, Chambers, Clay, Cleburne and 16 more | 29 min |
| Nov 18, 4:55 PM CST | Tornado Watch | SPC | Barbour, Bullock, Chambers, Coffee, Covington, Crenshaw and 11 more | 5 hr |
| Nov 18, 3:26 PM CST | Mesoscale Discussion | SPC | Fannin, Gilmer, Gordon, Murray, Whitfield | 94 min |
| Nov 18, 4:58 PM CST | Mesoscale Discussion | SPC | Catoosa, Chattooga, Dade, Fannin, Murray, Walker and 1 more | 32 min |
Nearby
Mesoscale Discussions in Georgia, 2003Mesoscale Discussions in Alabama, 2003Mesoscale Discussions in Florida, 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.