Alert archive / Florida / Mesoscale Discussions in 2007
Mesoscale Discussion 1126
The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2007, 11:01 AM EDT for 20 counties in Florida; 7 counties in Georgia. It was in force for 29 min.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2007, 11:01 AM EDT (15:01 UTC)
- Expired
- Jun 13, 2007, 11:30 AM EDT
- In force
- 29 min
- Issued by
- the Storm Prediction Center
All 27 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Lake County, FL, Marion County, FL, Nassau County, FL, Orange County, FL, Putnam County, FL, Saint Johns County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Union County, FL, Volusia County, FL, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Echols County, GA, Glynn County, GA, Ware County, GA
The radar
The Jacksonville radar (KJAX), 79 km from the middle of the area, began a volume at 15:04 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, 3.0 hours before the alert went out and 81 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
- 1169 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 779 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -11 m²/s²
- Significant tornado parameter
- -0.2
- Supercell composite
- -1.2
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 13, 11:29 AM EDT | Severe Thunderstorm Watch | SPC | Alachua, Baker, Bradford, Brevard, Clay, Columbia and 18 more | 8 hr |
| Jun 13, 3:41 PM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bay, Bradford, Brevard, Broward and 50 more | 64 min |
| Jun 12, 8:24 PM EDT | Mesoscale Discussion | SPC | Baldwin, Bibb, Butts, Clayton, Cobb, Crawford and 20 more | 2 hr |
| Jun 13, 1:26 PM EDT | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Chatham, Effingham, Evans and 5 more | 64 min |
| Jun 13, 2:29 PM EDT | Severe Thunderstorm Watch | SPC | Baldwin, Banks, Barrow, Bryan, Bulloch, Burke and 51 more | 8 hr |
| Jun 13, 4:11 PM EDT | Mesoscale Discussion | SPC | Appling, Baldwin, Banks, Barrow, Bryan, Bulloch and 52 more | 94 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.