Alert archive / Georgia / Mesoscale Discussions in 2012
Mesoscale Discussion 1073
The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2012, 2:34 PM CDT for Houston County, Alabama; 19 counties in Florida; 69 counties in Georgia. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Jun 5, 2012, 2:34 PM CDT (19:34 UTC)
- Expired
- Jun 5, 2012, 4:00 PM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 89 counties
Houston County, AL, Baker County, FL, Calhoun County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Gadsden County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Nassau County, FL, Okaloosa County, FL, Santa Rosa County, FL, Suwannee County, FL, Union 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, Camden County, GA, Charlton 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, Evans County, GA, Glynn County, GA, Grady County, GA, Houston County, GA, Irwin County, GA, Jeff Davis County, GA, Jones County, GA, Lamar County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, Macon County, GA, McIntosh County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Montgomery County, GA, Peach County, GA, Pierce County, GA, Pike County, GA, Pulaski County, GA, Schley County, GA, Seminole County, GA, Spalding County, GA, Sumter 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, Upson County, GA, Ware County, GA, Wayne 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, 7.6 hours before the alert went out and 113 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
- 1108 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 885 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
964
ACUS11 KWNS 051934
SWOMCD
SPC MCD 051934
GAZ000-FLZ000-ALZ000-052100-
MESOSCALE DISCUSSION 1073
NWS STORM PREDICTION CENTER NORMAN OK
0234 PM CDT TUE JUN 05 2012
AREAS AFFECTED...MUCH OF SOUTHERN GA/FAR NORTH FL
CONCERNING...SEVERE THUNDERSTORM WATCH 358...
VALID 051934Z - 052100Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 358
CONTINUES.
SUMMARY...SEVERE TSTM WATCH 358 CONTINUES UNTIL 01Z...WITH THE MAIN
SEVERE THREAT CONTINUING ACROSS SOUTH-CENTRAL/SOUTHEAST GA. PRIMARY
HAZARDS REMAIN DAMAGING WINDS/SEVERE HAIL.
DISCUSSION...STRONG/SEVERE TSTMS HAVE BECOME MORE NUMEROUS OVER THE
PAST FEW HOURS /SINCE 18Z/...ESPECIALLY ACROSS
SOUTH-CENTRAL/SOUTHEAST GA IN VICINITY OF A SOUTHWARD SAGGING
FRONTAL BOUNDARY. WHILE SOME INITIAL SUPERCELLS OCCURRED/PRODUCED
LARGE HAIL...CONSIDERABLE CELL MERGERS/CONSOLIDATION NEAR THE
EFFECTIVE FRONTAL ZONE SHOULD CONTINUE TO LEAD TO A DEGREE OF
UPSCALE GROWTH WITH MORE OF A DAMAGING WIND THREAT /VS LARGE HAIL/.
MULTIPLE QUASI-LINEAR/BOWING COMPLEXES...NORTH/SOUTH OF THE MACON
AREA AND AROUND THE I-75 CORRIDOR AS OF 1930Z...WILL CONTINUE TO
POSE A SHORT-TERM SEVERE /MAINLY WIND/ THREAT...BUT OTHERWISE ARE
LIKELY TO ULTIMATELY WEAKEN AS THEY SPREAD EASTWARD AND ENCOUNTER A
MORE STABLE AIRMASS TO THE NORTH OF THE OUTFLOW REINFORCED EFFECTIVE
BOUNDARY. THE MOST INTENSE STORM DEVELOPMENT/REGENERATION SHOULD
CONTINUE TO OCCUR ACROSS SOUTH-CENTRAL/SOUTHEAST GA IN A
PROGRESSIVELY-SOUTHWARD FASHION IN VICINITY OF THE WNW-ESE ORIENTED
EFFECTIVE FRONTAL ZONE.
FARTHER SOUTH...AIDED BY SEA BREEZE BOUNDARIES...ADDITIONAL
STRONG/SEVERE TSTMS WILL REMAIN POSSIBLE ON AN MORE ISOLATED BASIS
ACROSS FAR NORTH FL/FL PANHANDLE WITHIN A MORE MARGINAL
THERMODYNAMIC/VERTICAL SHEAR ENVIRONMENT.
..GUYER.. 06/05/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...CHS...JAX...FFC...TAE...MOB...
LAT...LON 30928709 31078570 31548457 33428436 32878318 32498235
32058165 31778090 30978118 29948159 30108288 30328458
30538717 30928709SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 10:42 AM CDT | Mesoscale Discussion | SPC | Barbour, Dale, Geneva, Henry, Houston, Lee and 1 more | 2 hr |
| Jun 5, 11:24 AM CDT | Severe Thunderstorm Watch | SPC | Geneva, Henry, Houston | 9 hr |
| Jun 5, 3:50 PM CDT | Mesoscale Discussion | SPC | Geneva, Houston | 85 min |
| Jun 5, 6:26 PM CDT | Mesoscale Discussion | SPC | Geneva, Henry, Houston | 94 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.