Alert archive / Georgia / Mesoscale Discussions in 2005
Mesoscale Discussion 726
The Storm Prediction Center issued this mesoscale discussion at Apr 30, 2005, 12:48 PM EDT for 8 counties in Florida; 25 counties in Georgia. It was in force for 27 min.
The area
The outline as issued.
The facts
- Issued
- Apr 30, 2005, 12:48 PM EDT (16:48 UTC)
- Expired
- Apr 30, 2005, 1:15 PM EDT
- In force
- 27 min
- Issued by
- the Storm Prediction Center
All 33 counties
Baker County, FL, Columbia County, FL, Hamilton County, FL, Jefferson County, FL, Lafayette County, FL, Madison County, FL, Nassau County, FL, Suwannee County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Brooks County, GA, Bryan County, GA, Bulloch County, GA, Camden County, GA, Charlton County, GA, Chatham County, GA, Clinch County, GA, Echols County, GA, Effingham County, GA, Evans County, GA, Glynn County, GA, Lanier County, GA, Liberty County, GA, Long County, GA, Lowndes County, GA, McIntosh County, GA, Pierce County, GA, Tattnall County, GA, Toombs County, GA, Ware County, GA, Wayne County, GA
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 4.8 hours before the alert went out and 100 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 986 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 183 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 30, 6:05 AM EDT | Tornado Watch | SPC | Escambia, Santa Rosa | 7 hr |
| Apr 30, 7:41 AM EDT | Mesoscale Discussion | SPC | Bay, Calhoun, Escambia, Gadsden, Gulf, Holmes and 6 more | 94 min |
| Apr 30, 8:10 AM EDT | Severe Thunderstorm Watch | SPC | Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 8 more | 6 hr |
| Apr 30, 12:02 PM EDT | Mesoscale Discussion | SPC | Escambia, Okaloosa, Santa Rosa, Walton | 58 min |
| Apr 30, 1:05 PM EDT | Severe Thunderstorm Watch | SPC | Baker, Bay, Calhoun, Columbia, Franklin, Gadsden and 11 more | 5 hr |
| Apr 30, 3:40 AM EDT | Tornado Watch | SPC | Floyd | 7 hr |
| Apr 30, 5:42 AM EDT | Mesoscale Discussion | SPC | Butts, Carroll, Clayton, Cobb, Coweta, DeKalb and 15 more | 93 min |
| Apr 30, 9:40 AM EDT | Severe Thunderstorm Watch | SPC | Columbia, Lincoln, Richmond | 6 hr |
Nearby
Mesoscale Discussions in Georgia, 2005Mesoscale Discussions in Florida, 2005Every mesoscale discussion in 2005
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.