Alert archive / Georgia / Mesoscale Discussions in 2004
Mesoscale Discussion 1069
The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2004, 10:51 AM EDT for 27 counties in Florida; 62 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 3, 2004, 10:51 AM EDT (14:51 UTC)
- Expired
- Jun 3, 2004, 1:15 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 89 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Calhoun County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Flagler County, FL, Gadsden County, FL, Gilchrist County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Lake County, FL, Leon County, FL, Levy County, FL, Liberty County, FL, Madison County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Sumter County, FL, Suwannee County, FL, Union County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Bleckley County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Camden County, GA, Charlton 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, Echols County, GA, Evans County, GA, Glynn County, GA, Grady County, GA, Houston County, GA, Irwin County, GA, Jeff Davis 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, Miller County, GA, Mitchell County, GA, Montgomery County, GA, Peach County, GA, Pierce County, GA, Pulaski County, GA, Randolph County, GA, Schley County, GA, Seminole 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, Ware County, GA, Wayne County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Worth County, GA
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, 2.9 hours before the alert went out and 93 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
- 294 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1023 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
049 ACUS11 KWNS 031451 SWOMCD SPC MCD 031451 FLZ000-GAZ000-031715- MESOSCALE DISCUSSION 1069 NWS STORM PREDICTION CENTER NORMAN OK 0951 AM CDT THU JUN 03 2004 AREAS AFFECTED...SRN GA THROUGH NRN FL CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 031451Z - 031715Z STORMS ARE EXPECTED TO INCREASE IN INTENSITY LATER THIS MORNING INTO THE EARLY AFTERNOON. ISOLATED DAMAGING WIND AND MARGINALLY SEVERE HAIL MAY ACCOMPANY THE STRONGER STORMS. AREA WILL CONTINUE TO BE MONITORED FOR A POSSIBLE WW. THIS MORNING A LINE OF MULTICELL STORMS EXTENDS FROM E CNTRL AL SWWD THROUGH THE WRN FL PANHANDLE. DOWNSTREAM FROM THIS LINE...HEATING OF THE MOIST BOUNDARY LAYER WILL CONTRIBUTE TO DESTABILIZATION INTO THE AFTERNOON. MID LEVEL LAPSE RATES ARE WEAK. HOWEVER...THE STRONG SURFACE HEATING AND BOUNDARY LAYER DEWPOINTS 65-70 WILL CONTRIBUTE TO MLCAPE AROUND 2000 J/KG. STORMS SHOULD CONTINUE DEVELOPING ALONG THE ZONE OF CONVERGENCE ASSOCIATED WITH THE CONVECTIVE OUTFLOW AS IT MOVES EWD INTO INCREASINGLY UNSTABLE AIR. OTHER MORE WIDELY SCATTERED STORMS WILL ALSO DEVELOP AHEAD OF THE LINE. VERTICAL SHEAR PROFILES ARE WEAK AND SUPPORTIVE OF MULTICELLS. HOWEVER...THE MOB VWP DOES SUGGEST A BAND OF 30-40 KT WLY FLOW ON SRN PERIPHERY OF AN MCV IN THE 1 TO 5 KM LAYER IMPINGING ON THE LINE. DAMAGING WIND SHOULD BE THE MAIN THREAT...ESPECIALLY AS STORMS INTENSIFY ALONG THE LINE. ISOLATED DAMAGING WIND AND MARGINALLY SEVERE HAIL WILL BE POSSIBLE WITH STORMS DEVELOPING FARTHER EAST IN WARM SECTOR. ..DIAL.. 06/03/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...CHS...MLB...TBW...JAX...FFC...TAE... 32508462 32758316 31988137 30698157 28958116 28488232 30028360 29758495 30018543 31048497
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 8:18 PM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Duval, Nassau and 2 more | 57 min |
| Jun 3, 12:00 PM EDT | Severe Thunderstorm Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 19 more | 5 hr |
| Jun 3, 3:41 PM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Clay, Columbia, Dixie and 10 more | 49 min |
| Jun 3, 4:35 PM EDT | Severe Thunderstorm Watch | SPC | Baker, Bradford, Clay, Duval, Flagler, Lake and 6 more | 4 hr |
Nearby
Mesoscale Discussions in Georgia, 2004Mesoscale Discussions in Florida, 2004Every mesoscale discussion in 2004
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.