Alert archive / Florida / Mesoscale Discussions in 2014
Mesoscale Discussion 1941
The Storm Prediction Center issued this mesoscale discussion at Nov 23, 2014, 11:20 AM CST for 4 counties in Alabama; 14 counties in Florida; 10 counties in Georgia. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Nov 23, 2014, 11:20 AM CST (17:20 UTC)
- Expired
- Nov 23, 2014, 12:15 PM CST
- In force
- 55 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 28 counties
Coffee County, AL, Dale County, AL, Geneva County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Brooks County, GA, Colquitt County, GA, Decatur County, GA, Early County, GA, Grady County, GA, Miller County, GA, Mitchell County, GA, Seminole County, GA, Thomas County, GA
The radar
The Tallahassee radar (KTLH), 79 km from the middle of the area, began a volume at 17:22 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, 5.3 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
- 350 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 553 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 374 m²/s²
- 0-3 km storm-relative helicity
- 452 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 5.8
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 23, 8:01 AM CST | Mesoscale Discussion | SPC | Baldwin, Mobile | 59 min |
| Nov 23, 12:35 PM CST | Tornado Watch | SPC | Barbour, Bullock, Coffee, Dale, Geneva, Henry and 6 more | 6 hr |
| Nov 23, 2:20 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Coffee, Dale, Geneva, Henry and 4 more | 55 min |
| Nov 23, 2:36 PM CST | Mesoscale Discussion | SPC | Nassau | 2 hr |
| Nov 23, 4:58 PM CST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Bryan, Bulloch, Burke and 26 more | 62 min |
Nearby
Mesoscale Discussions in Florida, 2014Mesoscale Discussions in Georgia, 2014Mesoscale Discussions in Alabama, 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.