Alert archive / Florida / Mesoscale Discussions in 2012
Mesoscale Discussion 1359
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2012, 10:33 PM CDT for 6 counties in Alabama; 26 counties in Florida; 13 counties in Georgia. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2012, 10:33 PM CDT (03:33 UTC)
- Expired
- Jul 2, 2012, 12:30 AM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 45 counties
Barbour County, AL, Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Alachua County, FL, Baker County, FL, Bay County, FL, Bradford County, FL, Calhoun County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Gadsden County, FL, Gilchrist County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Nassau County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Washington County, FL, Baker County, GA, Brooks County, GA, Charlton County, GA, Clay County, GA, Decatur County, GA, Early County, GA, Echols County, GA, Grady County, GA, Lowndes County, GA, Miller County, GA, Quitman County, GA, Seminole County, GA, Thomas County, GA
The radar
The Tallahassee radar (KTLH), 4 km from the middle of the area, began a volume at 03:33 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
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 3.6 hours before the alert went out and 7 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
- 8567 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 502 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -33 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jul 2, 5:16 PM CDT | Mesoscale Discussion | SPC | Jackson | 2 hr |
| Jul 2, 5:42 PM CDT | Mesoscale Discussion | SPC | Alachua, Bay, Bradford, Calhoun, Clay, Dixie and 15 more | 2 hr |
| Jul 1, 8:45 PM CDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 45 more | 60 min |
Nearby
Mesoscale Discussions in Florida, 2012Mesoscale Discussions in Georgia, 2012Mesoscale Discussions in Alabama, 2012Every mesoscale discussion in 2012
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.