Alert archive / Florida / Mesoscale Discussions in 2014
Mesoscale Discussion 313
The Storm Prediction Center issued this mesoscale discussion at Apr 7, 2014, 3:00 PM EDT for 11 counties in Florida; 5 counties in Georgia. It was in force for 60 min.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2014, 3:00 PM EDT (19:00 UTC)
- Expired
- Apr 7, 2014, 4:00 PM EDT
- In force
- 60 min
- Issued by
- the Storm Prediction Center
Counties Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Brooks County, GA, Grady County, GA, Lanier County, GA, Lowndes County, GA, Thomas County, GA
The radar
The Tallahassee radar (KTLH), 59 km from the middle of the area, began a volume at 19:02 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 12:00Z, 7.0 hours before the alert went out and 58 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
- 7 J/kg
- Mixed-layer CIN
- -158 J/kg
- Mixed-layer LCL
- 1052 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 339 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 |
|---|---|---|---|---|
| Apr 6, 11:10 PM EDT | Mesoscale Discussion | SPC | Escambia, Okaloosa, Santa Rosa, Walton | 2 hr |
| Apr 7, 1:50 AM EDT | Mesoscale Discussion | SPC | Escambia, Okaloosa, Santa Rosa | 25 min |
| Apr 7, 2:16 AM EDT | Tornado Watch | SPC | Escambia, Okaloosa, Santa Rosa | 7 hr |
| Apr 7, 6:42 AM EDT | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Gadsden, Holmes, Jackson and 7 more | 2 hr |
| Apr 7, 8:46 AM EDT | Tornado Watch | SPC | Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf and 13 more | 7 hr |
| Apr 7, 11:04 AM EDT | Mesoscale Discussion | SPC | Baker, Bay, Calhoun, Columbia, Franklin, Gadsden and 15 more | 116 min |
| Apr 7, 1:45 PM EDT | Mesoscale Discussion | SPC | Alachua, Baker, Bradford, Columbia, Dixie, Duval and 10 more | 60 min |
| Apr 7, 2:02 PM EDT | Tornado Watch | SPC | Hamilton, Suwannee | 7 hr |
| Apr 7, 3:33 PM EDT | Tornado Watch | SPC | Dixie, Franklin, Gadsden, Gulf, Jefferson, Lafayette and 5 more | 6 hr |
Nearby
Mesoscale Discussions in Florida, 2014Mesoscale Discussions in Georgia, 2014Every mesoscale discussion in 2014
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.