Alert archive / Georgia / Mesoscale Discussions in 2007
Mesoscale Discussion 2230
The Storm Prediction Center issued this mesoscale discussion at Dec 16, 2007, 12:29 AM EST for 30 counties in Florida; 34 counties in Georgia; 8 counties in South Carolina. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 16, 2007, 12:29 AM EST (05:29 UTC)
- Expired
- Dec 16, 2007, 2:30 AM EST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 72 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Hernando County, FL, Hillsborough County, FL, Lafayette County, FL, Lake County, FL, Levy County, FL, Madison County, FL, Manatee County, FL, Marion County, FL, Nassau County, FL, Pasco County, FL, Pinellas County, FL, Putnam County, FL, Saint Johns County, FL, Sarasota County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Candler County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Coffee County, GA, Cook County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Irwin County, GA, Jeff Davis County, GA, Jenkins County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Pierce County, GA, Screven County, GA, Tattnall County, GA, Tift County, GA, Ware County, GA, Wayne 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 radar
The Jacksonville radar (KJAX), 33 km from the middle of the area, began a volume at 05:29 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 nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 5.5 hours before the alert went out and 33 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
- 884 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 199 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 9:19 PM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 14 more | 116 min |
| Dec 15, 9:42 PM EST | Tornado Watch | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 24 more | 8 hr |
| Dec 16, 3:16 AM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Citrus, Clay, Columbia and 25 more | 119 min |
| Dec 16, 5:10 AM EST | Mesoscale Discussion | SPC | Flagler, Hernando, Hillsborough, Lake, Marion, Orange and 4 more | 65 min |
| Dec 16, 6:15 AM EST | Tornado Watch | SPC | Lake, Orange, Seminole, Volusia | 107 min |
| Dec 16, 7:32 AM EST | Mesoscale Discussion | SPC | Orange, Seminole, Volusia | 58 min |
Nearby
Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in Florida, 2007Mesoscale Discussions in South Carolina, 2007Every mesoscale discussion in 2007
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.