Alert archive / Florida / Mesoscale Discussions in 2013
Mesoscale Discussion 150
The Storm Prediction Center issued this mesoscale discussion at Feb 11, 2013, 11:58 AM CST for Geneva County, Houston County, Alabama; 15 counties in Florida; 11 counties in Georgia. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Feb 11, 2013, 11:58 AM CST (17:58 UTC)
- Expired
- Feb 11, 2013, 1:30 PM CST
- In force
- 92 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 28 counties
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, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Brooks County, GA, Colquitt County, GA, Cook 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 Eglin Afb radar (KEVX), 45 km from the middle of the area, began a volume at 17:59 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 12:00Z, 6.0 hours before the alert went out and 112 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 357 m²/s²
- 0-3 km storm-relative helicity
- 346 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 |
|---|---|---|---|---|
| Feb 10, 6:05 PM CST | Mesoscale Discussion | SPC | Barbour, Bullock, Butler, Conecuh, Covington, Crenshaw and 2 more | 85 min |
| Feb 10, 6:23 PM CST | Mesoscale Discussion | SPC | Bullock, Butler, Choctaw, Clarke, Conecuh, Crenshaw and 7 more | 97 min |
| Feb 10, 9:32 PM CST | Mesoscale Discussion | SPC | Butler, Clarke, Coffee, Conecuh, Covington, Dale and 7 more | 88 min |
| Feb 11, 1:55 AM CST | Mesoscale Discussion | SPC | Butler, Clarke, Conecuh, Monroe, Washington, Wilcox | 95 min |
Nearby
Mesoscale Discussions in Florida, 2013Mesoscale Discussions in Georgia, 2013Mesoscale Discussions in Alabama, 2013Every mesoscale discussion in 2013
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.