Alert archive / Florida / Mesoscale Discussions in 2008
Mesoscale Discussion 2401
The Storm Prediction Center issued this mesoscale discussion at Nov 30, 2008, 3:46 AM EST for 10 counties in Florida; 10 counties in Georgia. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Nov 30, 2008, 3:46 AM EST (08:46 UTC)
- Expired
- Nov 30, 2008, 5:15 AM EST
- In force
- 89 min
- Issued by
- the Storm Prediction Center
Counties Columbia County, FL, Franklin County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Atkinson County, GA, Berrien County, GA, Brooks County, GA, Clinch County, GA, Cook County, GA, Echols County, GA, Lanier County, GA, Lowndes County, GA, Thomas County, GA, Ware County, GA
The radar
The Tallahassee radar (KTLH), 74 km from the middle of the area, began a volume at 08:46 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 00:00Z, 8.8 hours before the alert went out and 71 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
- 306 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 486 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.9
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 |
|---|---|---|---|---|
| Nov 30, 4:59 AM EST | Tornado Watch | SPC | Columbia, Dixie, Franklin, Gilchrist, Hamilton, Jefferson and 6 more | 7 hr |
| Nov 30, 7:54 AM EST | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Columbia, Dixie, Gilchrist and 4 more | 96 min |
| Nov 30, 9:51 AM EST | Tornado Watch | SPC | Alachua, Baker, Bradford, Citrus, Clay, Duval and 18 more | 7 hr |
| Nov 30, 12:24 PM EST | Mesoscale Discussion | SPC | Flagler, Hillsborough, Lake, Marion, Orange, Osceola and 6 more | 96 min |
| Nov 30, 1:05 PM EST | Tornado Watch | SPC | Brevard, Broward, Charlotte, Collier, DeSoto, Glades and 13 more | 8 hr |
| Nov 30, 3:53 PM EST | Mesoscale Discussion | SPC | Broward, Collier, Hendry, Martin, Miami-Dade, Monroe and 2 more | 2 hr |
Nearby
Mesoscale Discussions in Florida, 2008Mesoscale Discussions in Georgia, 2008Every mesoscale discussion in 2008
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.