Alert archive / Florida / Mesoscale Discussions in 2007
Mesoscale Discussion 2225
The Storm Prediction Center issued this mesoscale discussion at Dec 15, 2007, 12:47 PM CST for 12 counties in Alabama; 13 counties in Florida; 5 counties in Georgia. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Dec 15, 2007, 12:47 PM CST (18:47 UTC)
- Expired
- Dec 15, 2007, 2:15 PM CST
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 30 counties
Baldwin County, AL, Barbour County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Pike County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Clay County, GA, Decatur County, GA, Early County, GA, Miller County, GA, Seminole County, GA
The radar
The Eglin Afb radar (KEVX), 112 km from the middle of the area, began a volume at 18:50 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, 6.8 hours before the alert went out and 248 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
- 39 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 636 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Dec 15, 3:47 PM CST | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 5 hr |
| Dec 15, 5:31 PM CST | Mesoscale Discussion | SPC | Coffee, Dale, Geneva, Henry, Houston | 119 min |
Nearby
Mesoscale Discussions in Florida, 2007Mesoscale Discussions in Alabama, 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.