Alert archive / Georgia / Mesoscale Discussions in 2014
Mesoscale Discussion 310
The Storm Prediction Center issued this mesoscale discussion at Apr 7, 2014, 10:04 AM CDT for 4 states. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2014, 10:04 AM CDT (15:04 UTC)
- Expired
- Apr 7, 2014, 12:00 PM CDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
All 119 counties
Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Baker County, FL, Bay County, FL, Calhoun County, FL, Columbia County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Okaloosa County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Burke County, GA, Calhoun County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Chattahoochee County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Crawford 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, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Peach County, GA, Pierce County, GA, Pulaski County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Screven County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Ware County, GA, Washington County, GA, Wayne County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA, Allendale County, SC, Bamberg County, SC, Beaufort County, SC, Berkeley County, SC, Charleston County, SC, Colleton County, SC, Dorchester County, SC, Georgetown County, SC, Hampton County, SC, Jasper County, SC
The radar
The Moody AFB radar (KVAX), 117 km from the middle of the area, began a volume at 15:06 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.1 hours before the alert went out and 122 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
- 7 J/kg
- Mixed-layer CIN
- -158 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 339 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
288
ACUS11 KWNS 071504
SWOMCD
SPC MCD 071504
SCZ000-GAZ000-FLZ000-ALZ000-071700-
MESOSCALE DISCUSSION 0310
NWS STORM PREDICTION CENTER NORMAN OK
1004 AM CDT MON APR 07 2014
AREAS AFFECTED...SERN AL/FL PANHANDLE/PARTS OF SRN AND CENTRAL GA
INTO SRN AND ERN SC AND N FL
CONCERNING...TORNADO WATCH 67...
VALID 071504Z - 071700Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 67 CONTINUES.
SUMMARY...BAND OF ORGANIZED STORMS CONTINUES MOVING EWD THROUGH WW
67. ISOLATED SEVERE/LOCAL TORNADO RISK CONTINUES WITH STRONGEST
CONVECTIVE ELEMENTS WITHIN THE LARGER-SCALE BAND.
DISCUSSION...MORNING WV IMAGERY CONTINUES TO DEPICT EXTENSIVE CLOUD
COVER DOWNSTREAM OF ONGOING CONVECTIVE BAND...WHICH CONTINUES TO
HINDER HEATING/DESTABILIZATION AHEAD OF THE STORMS. THAT SAID...A
MOIST/MARGINALLY UNSTABLE AIRMASS CURRENTLY IN PLACE REMAINS
SUFFICIENT FOR SUSTAINING THE ORGANIZED BAND OF CONVECTION NOW
CROSSING GA/SERN AL/THE FL PANHANDLE.
ATTM...IT APPEARS THAT CONVECTION SHOULD REMAIN ROUGHLY STEADY-STATE
IN TERMS OF INTENSITY/SEVERITY AS IT TRAVERSES WW 67 -- I.E. WITH
ONLY OCCASIONAL STRONGER CELLS WITHIN THE LINE POSING ANY
SEVERE/TORNADO RISK. E OF THE EXISTING WATCH...AN INCREASINGLY
MOIST BOUNDARY LAYER IS BEING ADVECTED ONSHORE OVER SERN GA AND
ADJACENT SRN SC. ASSOCIATED AIRMASS DESTABILIZATION MAY SUPPORT
SOME INCREASE IN CONVECTIVE INTENSITY AS THE LINE OF STORMS MOVES
TOWARD THE COAST LATER THIS MORNING -- POSSIBLY REQUIRING NEW WW
ISSUANCE.
..GOSS/MEAD.. 04/07/2014
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...ILM...CHS...CAE...JAX...FFC...TAE...BMX...MOB...
LAT...LON 29558763 30008735 31718528 31968492 32708467 32828374
33228243 33288068 33557893 31448102 29838285 29548515
29558763SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 8:02 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Chilton, Coosa, Dallas, Elmore and 14 more | 118 min |
| Apr 6, 10:10 PM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 8 more | 2 hr |
| Apr 6, 11:42 PM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Chilton, Coosa, Dallas, Elmore and 10 more | 2 hr |
| Apr 7, 12:50 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Bullock, Butler, Chambers and 32 more | 25 min |
| Apr 7, 1:16 AM CDT | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 37 more | 7 hr |
| Apr 7, 3:16 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Butler, Chilton, Choctaw and 25 more | 119 min |
| Apr 7, 5:42 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 40 more | 2 hr |
| Apr 7, 7:46 AM CDT | Tornado Watch | SPC | Baldwin, Barbour, Bullock, Butler, Coffee, Conecuh and 12 more | 7 hr |
| Apr 7, 12:45 PM CDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Columbia, Dixie, Duval and 10 more | 60 min |
| Apr 7, 1:02 PM CDT | Tornado Watch | SPC | Hamilton, Suwannee | 7 hr |
| Apr 7, 2:00 PM CDT | Mesoscale Discussion | SPC | Dixie, Franklin, Gadsden, Gulf, Jefferson, Lafayette and 5 more | 60 min |
| Apr 7, 2:33 PM CDT | Tornado Watch | SPC | Dixie, Franklin, Gadsden, Gulf, Jefferson, Lafayette and 5 more | 6 hr |
Nearby
Mesoscale Discussions in Georgia, 2014Mesoscale Discussions in Florida, 2014Mesoscale Discussions in South Carolina, 2014Every mesoscale discussion in 2014
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.