Alert archive / Georgia / Mesoscale Discussions in 2012
Mesoscale Discussion 1113
The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2012, 2:02 PM CDT for 4 counties in Alabama; 11 counties in Florida; 68 counties in Georgia. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2012, 2:02 PM CDT (19:02 UTC)
- Expired
- Jun 10, 2012, 3:30 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 83 counties
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, Atkinson County, GA, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brooks County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Montgomery County, GA, Muscogee County, GA, Peach County, GA, Pike County, GA, Pulaski 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, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Treutlen County, GA, Troup County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.0 hours before the alert went out and 96 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
- 1717 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 478 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
720
ACUS11 KWNS 101903
SWOMCD
SPC MCD 101902
GAZ000-FLZ000-ALZ000-102030-
MESOSCALE DISCUSSION 1113
NWS STORM PREDICTION CENTER NORMAN OK
0202 PM CDT SUN JUN 10 2012
AREAS AFFECTED...SERN AL...SWRN GA AND THE FL PANHANDLE
CONCERNING...TORNADO WATCH 368...
VALID 101902Z - 102030Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 368 CONTINUES.
SUMMARY...A CLUSTER OF THUNDERSTORMS WILL CONTINUE TO DEVELOP
NORTHEASTWARD ACROSS THE WATCH AREA...THROUGH MUCH OF CENTRAL AND
SOUTHERN GEORGIA...LATE THIS AFTERNOON. IT IS POSSIBLE THAT A NEW
WW WILL NOT BE NEEDED EAST OF THE CURRENT WATCH...BUT TRENDS WILL
CONTINUE TO BE MONITORED.
DISCUSSION...REFLECTIVITY STRUCTURE ASSOCIATED WITH AN INITIAL
INLAND ADVANCING STORM CLUSTER HAS TAKEN ON AN INCREASINGLY BOWED
CONFIGURATION... WITH SOME INCREASE IN SPEED OF NORTHEASTWARD
PROPAGATION...WHICH MAY CONTINUE THROUGH AREAS SOUTH/SOUTHEAST OF
COLUMBUS BETWEEN NOW AND 20Z. AS ACTIVITY PROGRESSES INTO AREAS OF
SOUTH CENTRAL GEORGIA TO THE SOUTH OF MACON TOWARD THE 21-22Z TIME
FRAME...IT IS NOT CERTAIN THAT IT WILL MAINTAIN STRENGTH WITH A
CONTINUING RISK FOR POTENTIALLY DAMAGING WIND GUSTS. LATEST RAPID
REFRESH SUGGESTS THAT THE SOUTHERLY 850 MB JET AXIS WILL REMAIN
FOCUSED NEAR THE GEORGIA/ALABAMA BORDER AREA THROUGH EARLY
EVENING...WITH LOW-LEVEL SHEAR DECREASING WITH EASTWARD EXTENT
ACROSS GEORGIA.
..KERR.. 06/10/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...JAX...FFC...TAE...BMX...
LAT...LON 32628556 33388479 33138302 32558243 31238271 29898408
29508482 28878537 28728696 29288705 30998560 31848510
32628556SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 10:27 AM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Butler, Chambers, Coffee and 14 more | 93 min |
| Jun 10, 11:41 AM CDT | Tornado Watch | SPC | Barbour, Bullock, Coffee, Covington, Crenshaw, Dale and 8 more | 6 hr |
| Jun 10, 12:05 AM CDT | Mesoscale Discussion | SPC | Taylor | 25 min |
| Jun 10, 5:35 PM CDT | Mesoscale Discussion | SPC | Gadsden, Gulf, Jefferson, Leon, Liberty, Wakulla | 55 min |
Nearby
Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in Florida, 2012Mesoscale Discussions in Alabama, 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.