Alert archive / Georgia / Mesoscale Discussions in 2012
Mesoscale Discussion 159
The Storm Prediction Center issued this mesoscale discussion at Feb 24, 2012, 3:11 PM CST for 4 states. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2012, 3:11 PM CST (21:11 UTC)
- Expired
- Feb 24, 2012, 4:15 PM CST
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 86 counties
Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Calhoun County, GA, Candler County, GA, Chatham County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Jenkins County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Pierce County, GA, Pulaski County, GA, Randolph County, GA, Screven County, GA, Seminole County, GA, Sumter County, GA, Tattnall County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA, Allendale County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC, Jasper County, SC
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.2 hours before the alert went out and 157 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
- 1115 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 5.6
The text
As transmitted, in the capitals the NWS used until 2016.
868 ACUS11 KWNS 242112 SWOMCD SPC MCD 242111 SCZ000-GAZ000-FLZ000-ALZ000-242215- MESOSCALE DISCUSSION 0159 NWS STORM PREDICTION CENTER NORMAN OK 0311 PM CST FRI FEB 24 2012 AREAS AFFECTED...NRN FL...SRN GA...SRN SC CONCERNING...TORNADO WATCH 37... VALID 242111Z - 242215Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 37 CONTINUES. BACK EDGE OF STRONGEST CONVECTION IS CORRELATED WELL WITH ADVANCING WIND SHIFT OVER GA. THIS ACTIVITY IS SHIFTING EWD AT ROUGHLY 30KT WITH INDIVIDUAL CELLS RACING CONSIDERABLY FASTER IN A NEWD FASHION. NET RESULT WILL BE FOR THE COLD FRONT/FRONTAL CONVECTION TO CLEAR THE GA/SC COAST BY 01Z. UNTIL THEN...AN AXIS OF 1000-1500 J/KG MLCAPE HAS YET TO BE OVERTURNED ACROSS SERN GA AND THIS SHOULD AID THUNDERSTORM INTENSITY ACROSS THE REMAINING WARM SECTOR OF WW37. ..DARROW.. 02/24/2012 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...BMX...MOB... LAT...LON 31368619 33577998 31947927 29738548 31368619
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 5:56 AM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Calhoun, Chambers and 20 more | 94 min |
| Feb 24, 7:48 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 25 more | 7 hr |
| Feb 24, 9:49 AM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Butler, Chambers, Coffee, Conecuh and 13 more | 56 min |
| Feb 24, 11:04 AM CST | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 7 hr |
| Feb 24, 12:50 PM CST | Mesoscale Discussion | SPC | Henry, Houston | 85 min |
| Feb 24, 8:17 AM CST | Tornado Watch | SPC | Franklin, Habersham, Hart, Rabun, Stephens | 7 hr |
| Feb 24, 11:00 AM CST | Mesoscale Discussion | SPC | Fannin, Rabun, Towns, Union | 60 min |
| Feb 24, 2:24 PM CST | Mesoscale Discussion | SPC | Fannin, Rabun, Towns, Union | 66 min |
| Feb 24, 8:05 AM CST | Mesoscale Discussion | SPC | Cherokee, York | 25 min |
| Feb 24, 10:10 AM CST | Mesoscale Discussion | SPC | Bamberg, Barnwell, Calhoun, Clarendon, Darlington, Dillon and 11 more | 65 min |
| Feb 24, 11:43 AM CST | Mesoscale Discussion | SPC | Darlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more | 92 min |
| Feb 24, 12:19 PM CST | Tornado Watch | SPC | Darlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more | 7 hr |
| Feb 24, 3:45 PM CST | Mesoscale Discussion | SPC | Darlington, Dillon, Florence, Georgetown, Horry, Marion and 2 more | 90 min |
Nearby
Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in Florida, 2012Mesoscale Discussions in South Carolina, 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.