Alert archive / Georgia / Mesoscale Discussions in 2005
Mesoscale Discussion 340
The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2005, 11:54 AM EST for 40 counties in Georgia; 5 counties in South Carolina. It was in force for 36 min.
The area
The outline as issued.
The facts
- Issued
- Mar 22, 2005, 11:54 AM EST (16:54 UTC)
- Expired
- Mar 22, 2005, 12:30 PM EST
- In force
- 36 min
- Issued by
- the Storm Prediction Center
All 45 counties
Appling County, GA, Baldwin County, GA, Bleckley County, GA, Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Dodge County, GA, Effingham County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Laurens County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Montgomery County, GA, Morgan County, GA, Pulaski County, GA, Putnam County, GA, Screven County, GA, Tattnall County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Twiggs County, GA, Warren County, GA, Washington County, GA, Wayne County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Allendale County, SC, Beaufort County, SC, Colleton County, SC, Hampton County, SC, Jasper County, SC
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 4.9 hours before the alert went out and 215 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
- 381 J/kg
- Mixed-layer CIN
- -54 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 243 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 221654 SWOMCD SPC MCD 221654 SCZ000-GAZ000-221730- MESOSCALE DISCUSSION 0340 NWS STORM PREDICTION CENTER NORMAN OK 1054 AM CST TUE MAR 22 2005 AREAS AFFECTED...PORTIONS OF ERN GA INTO SRN SC CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 221654Z - 221730Z NEW WW MAY BE REQUIRED ACROSS PORTIONS OF ERN GA INTO SRN SC. THREAT FOR ELEVATED STORMS PRODUCING SEVERE HAIL AND POTENTIALLY DAMAGING WINDS IS EXPECTED TO SPREAD NWD ACROSS ERN GA INTO SRN SC DURING THE NEXT SEVERAL HOURS. 16Z SURFACE ANALYSIS SHOWED A WARM FRONT CONTINUED TO MOVE NWD ACROSS CENTRAL AL AND SRN GA...WITH A SECOND WARM FRONT LOCATED GENERALLY E-W ACROSS CENTRAL/NRN GA. REGIONAL RADARS INDICATED STRONG TO SEVERE STORMS NORTH OF THE BOUNDARY ACROSS SRN GA. THIS ACTIVITY IS EXPECTED TO EXPAND IN COVERAGE AS LARGE SCALE ASCENT INCREASES WITH THE APPROACH OF A STRONG WSWLY MID LEVEL JET. EXTENSIVE CLOUD COVER ALREADY INDICATED OVER MUCH OF ERN GA AND SRN SC SUGGESTS DESTABILIZATION WILL BE SOMEWHAT SLOW. HOWEVER...DEEP LAYER SHEAR WILL BE MORE THAN SUFFICIENT TO SUPPORT ELEVATED ORGANIZED STORMS...DESPITE MARGINAL INSTABILITY. ..PETERS.. 03/22/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...CHS...CAE...JAX...FFC...TAE... 31958361 33708359 32738008 31328126
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:38 AM EST | Mesoscale Discussion | SPC | Baker, Berrien, Brooks, Calhoun, Clay, Colquitt and 18 more | 67 min |
| Mar 22, 8:40 AM EST | Tornado Watch | SPC | Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more | 6 hr |
| Mar 22, 9:49 AM EST | Mesoscale Discussion | SPC | Carroll, Chattahoochee, Haralson, Harris, Heard, Muscogee and 2 more | 26 min |
| Mar 22, 10:15 AM EST | Severe Thunderstorm Watch | SPC | Bibb, Butts, Carroll, Chattahoochee, Clayton, Coweta and 29 more | 6 hr |
| Mar 22, 10:38 AM EST | Mesoscale Discussion | SPC | Atkinson, Brantley, Camden, Charlton, Clinch, Glynn and 2 more | 2 hr |
| Mar 22, 11:05 AM EST | Tornado Watch | SPC | Atkinson, Bacon, Brantley, Camden, Charlton, Clinch and 6 more | 7 hr |
| Mar 22, 1:20 PM EST | Severe Thunderstorm Watch | SPC | Appling, Baldwin, Bleckley, Bryan, Bulloch, Burke and 36 more | 7 hr |
| Mar 22, 1:51 PM EST | Mesoscale Discussion | SPC | Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 22 more | 54 min |
| Mar 22, 2:20 PM EST | Tornado Watch | SPC | Baker, Berrien, Brooks, Calhoun, Clay, Colquitt and 14 more | 7 hr |
| Mar 22, 2:37 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Berrien, Brantley, Camden and 13 more | 83 min |
| Mar 22, 3:05 PM EST | Mesoscale Discussion | SPC | Bibb, Butts, Carroll, Chattahoochee, Clayton, Coweta and 32 more | 25 min |
| Mar 22, 4:41 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Brantley, Camden, Charlton and 8 more | 34 min |
| Mar 22, 5:00 PM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Ben Hill, Brantley, Bryan and 14 more | 6 hr |
| Mar 22, 6:10 PM EST | Mesoscale Discussion | SPC | Brantley, Bryan, Camden, Charlton, Clinch, Echols and 7 more | 95 min |
Nearby
Mesoscale Discussions in Georgia, 2005Mesoscale Discussions in South Carolina, 2005Every mesoscale discussion in 2005
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.