Alert archive / Florida / Mesoscale Discussions in 2007
Mesoscale Discussion 1108
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2007, 11:09 AM EDT for 40 counties in Florida; 7 counties in Georgia. It was in force for 36 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2007, 11:09 AM EDT (15:09 UTC)
- Expired
- Jun 12, 2007, 11:45 AM EDT
- In force
- 36 min
- Issued by
- the Storm Prediction Center
All 47 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Brevard County, FL, Charlotte County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, DeSoto County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Glades County, FL, Hamilton County, FL, Hardee County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lake County, FL, Levy County, FL, Manatee County, FL, Marion County, FL, Martin County, FL, Nassau County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Putnam County, FL, Saint Johns County, FL, Saint Lucie County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Union County, FL, Volusia County, FL, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Lanier County, GA, Lowndes County, GA, Ware County, GA
The radar
The Jacksonville radar (KJAX), 129 km from the middle of the area, began a volume at 15:11 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
Jacksonville, FL (KJAX), launched 12:00Z, 3.2 hours before the alert went out and 131 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
- 1068 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 674 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.4
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 |
|---|---|---|---|---|
| Jun 12, 6:03 AM EDT | Mesoscale Discussion | SPC | Gadsden, Jefferson, Leon | 57 min |
| Jun 12, 8:25 AM EDT | Severe Thunderstorm Watch | SPC | Alachua, Baker, Bradford, Clay, Columbia, Duval and 9 more | 7 hr |
| Jun 12, 11:30 AM EDT | Severe Thunderstorm Watch | SPC | Brevard, Citrus, DeSoto, Hardee, Hernando, Highlands and 17 more | 6 hr |
| Jun 12, 1:36 PM EDT | Mesoscale Discussion | SPC | Bay, Calhoun, Columbia, Dixie, Franklin, Gadsden and 17 more | 54 min |
| Jun 12, 3:16 PM EDT | Mesoscale Discussion | SPC | Brevard, Citrus, DeSoto, Glades, Hardee, Hernando and 18 more | 59 min |
| Jun 12, 4:02 PM EDT | Mesoscale Discussion | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more | 28 min |
| Jun 12, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | Bay, Calhoun, Dixie, Escambia, Franklin, Gadsden and 14 more | 5 hr |
| Jun 12, 4:59 PM EDT | Mesoscale Discussion | SPC | Broward, Indian River, Martin, Okeechobee, Palm Beach, Saint Lucie | 61 min |
| Jun 12, 12:02 PM EDT | Mesoscale Discussion | SPC | Banks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 38 more | 58 min |
| Jun 12, 2:23 PM EDT | Severe Thunderstorm Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 80 more | 8 hr |
| Jun 12, 4:48 PM EDT | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 86 more | 57 min |
Nearby
Mesoscale Discussions in Florida, 2007Mesoscale Discussions in Georgia, 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.