Alert archive / Georgia / Mesoscale Discussions in 2012
Mesoscale Discussion 76
The Storm Prediction Center issued this mesoscale discussion at Jan 26, 2012, 2:16 PM CST for 4 states. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Jan 26, 2012, 2:16 PM CST (20:16 UTC)
- Expired
- Jan 26, 2012, 4:15 PM CST
- In force
- 119 min
- Issued by
- the Storm Prediction Center
All 132 counties
Barbour County, AL, Dale County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Russell County, AL, Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL, Washington County, FL, Baker County, GA, Baldwin County, GA, Banks County, GA, Barrow County, GA, Ben Hill County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Calhoun County, GA, Carroll County, GA, Chattahoochee County, GA, Clarke County, GA, Clay County, GA, Clayton County, GA, Cobb County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, DeKalb County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Douglas County, GA, Early County, GA, Elbert County, GA, Fayette County, GA, Forsyth County, GA, Franklin County, GA, Fulton County, GA, Glascock County, GA, Grady County, GA, Greene County, GA, Gwinnett County, GA, Hall County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Hart County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Irwin County, GA, Jackson County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lee County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Miller County, GA, Mitchell 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, Quitman County, GA, Randolph County, GA, Richmond County, GA, Rockdale County, GA, Schley County, GA, Seminole County, GA, Spalding County, GA, Stephens County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Troup County, GA, Turner 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, Worth County, GA, Abbeville County, SC, Anderson County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Laurens County, SC, McCormick County, SC, Newberry County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC
The radar
The Robins AFB radar (KJGX), 86 km from the middle of the area, began a volume at 20:17 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 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, 8.3 hours before the alert went out and 141 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 555 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
284
ACUS11 KWNS 262017
SWOMCD
SPC MCD 262016
SCZ000-GAZ000-FLZ000-ALZ000-262215-
MESOSCALE DISCUSSION 0076
NWS STORM PREDICTION CENTER NORMAN OK
0216 PM CST THU JAN 26 2012
AREAS AFFECTED...GA...NRN FL
CONCERNING...SEVERE POTENTIAL...WATCH LIKELY
VALID 262016Z - 262215Z
ONE OR TWO ADDITIONAL WWS MAY BE NEEDED ACROSS PARTS OF THE EASTERN
GULF STATES AND SOUTHERN APPALACHIANS REGION BETWEEN NOW AND 00-01Z.
THE SQUALL LINE OVER THE NORTHEASTERN GULF OF MEXICO INTO THE
WESTERN FLORIDA PANHANDLE HAS WEAKENED SOME. HOWEVER...IT APPEARS
TO BE MAINTAINING SUFFICIENT STRENGTH TO CONTINUE SUPPORTING A RISK
FOR DAMAGING WIND GUSTS/ISOLATED TORNADOES AS IT PROGRESSES EASTWARD
ACROSS MUCH OF SOUTHWEST GEORGIA AND THE FLORIDA BIG BEND REGION BY
23-00Z.
FARTHER NORTH...MORE UNCERTAINTY CONCERNING LONGER TERM CONVECTIVE
TRENDS EXISTS. BUT THERE STILL APPEARS POTENTIAL FOR SIGNIFICANT
INTENSIFICATION OF CONVECTION LATE THIS AFTERNOON AND EVENING. MORE
RAPID DEEPENING OF A SURFACE LOW NOW LIFTING OUT OF THE NORTH
CENTRAL GULF COAST STATES TOWARD CENTRAL/EASTERN KENTUCKY WILL
LIKELY CONTRIBUTE TO FURTHER INTENSIFICATION OF SOUTHERLY 850 MB
FLOW IN EXCESS OF 50-60 KTS...WHICH WILL ENLARGE LOW-LEVEL
HODOGRAPHS ALONG AND AHEAD OF THE RESIDUAL EASTWARD ADVANCING
CONVECTIVE BAND. THE INTERSECTION OF THIS CONVECTION WITH A REMNANT
NEAR SURFACE BAROCLINIC ZONE TO THE LEE OF THE SOUTHERN APPALACHIANS
COULD PROVIDE A FOCUS FOR ENHANCED SEVERE WEATHER POTENTIAL. THIS
MAY INCLUDE SUPERCELLS WITH TORNADOES...NEAR/NORTH OF ATLANTA INTO
WESTERN SOUTH CAROLINA...AS THE REMNANTS OF AN UPSTREAM LOW BEGIN
LIFTING THROUGH THE TENNESSEE VALLEY BY 00-03Z.
..KERR.. 01/26/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CAE...GSP...FFC...TAE...BMX...
LAT...LON 29028616 30478583 31358574 32868530 33948523 34308412
35038236 34948139 34518075 33278202 32148277 30128402
29318464 29028616SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 26, 2:05 AM CST | Mesoscale Discussion | SPC | Mobile, Washington | 2 hr |
| Jan 26, 4:18 AM CST | Tornado Watch | SPC | Baldwin, Choctaw, Clarke, Conecuh, Escambia, Mobile and 3 more | 7 hr |
| Jan 26, 7:29 AM CST | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Conecuh, Escambia, Mobile and 3 more | 91 min |
| Jan 26, 9:34 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Calhoun and 24 more | 86 min |
| Jan 26, 9:55 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 34 more | 7 hr |
| Jan 26, 5:35 PM CST | Mesoscale Discussion | SPC | Colbert, Fayette, Franklin, Lamar, Lauderdale, Lawrence and 5 more | 55 min |
| Jan 26, 3:30 PM CST | Tornado Watch | SPC | Dixie, Franklin, Gadsden, Jefferson, Lafayette, Leon and 4 more | 6 hr |
Nearby
Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in South Carolina, 2012Mesoscale Discussions in Florida, 2012Every mesoscale discussion in 2012
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.