Alert archive / Georgia / Mesoscale Discussions in 2013
Mesoscale Discussion 103
The Storm Prediction Center issued this mesoscale discussion at Jan 30, 2013, 5:31 PM EST for 6 counties in Florida; 40 counties in Georgia; 4 counties in South Carolina. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Jan 30, 2013, 5:31 PM EST (22:31 UTC)
- Expired
- Jan 30, 2013, 6:30 PM EST
- In force
- 59 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 50 counties
Gadsden County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Wakulla County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Dodge County, GA, Echols County, GA, Emanuel County, GA, Evans County, GA, Glascock County, GA, Irwin County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Lanier County, GA, Laurens County, GA, Lowndes County, GA, McDuffie County, GA, Montgomery County, GA, Pierce County, GA, Richmond County, GA, Screven County, GA, Tattnall County, GA, Telfair County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Washington County, GA, Wheeler County, GA, Aiken County, SC, Allendale County, SC, Barnwell County, SC, Hampton County, SC
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, 10.5 hours before the alert went out and 143 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
- 40 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 210 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 |
|---|---|---|---|---|
| Jan 30, 5:45 PM EST | Tornado Watch | SPC | Calhoun, Columbia, Dixie, Franklin, Gadsden, Gilchrist and 11 more | 6 hr |
| Jan 30, 5:51 AM EST | Tornado Watch | SPC | Bartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 8 more | 7 hr |
| Jan 30, 7:38 AM EST | Mesoscale Discussion | SPC | Bartow, Carroll, Catoosa, Chattooga, Dade, Floyd and 7 more | 97 min |
| Jan 30, 8:11 AM EST | Tornado Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 81 more | 7 hr |
| Jan 30, 11:09 AM EST | Mesoscale Discussion | SPC | Bartow, Carroll, Cherokee, Clayton, Cobb, Coweta and 18 more | 96 min |
| Jan 30, 12:50 PM EST | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Butts and 63 more | 85 min |
| Jan 30, 1:19 PM EST | Tornado Watch | SPC | Baker, Baldwin, Banks, Barrow, Bartow, Bibb and 91 more | 9 hr |
| Jan 30, 4:13 PM EST | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Colquitt, Columbia, Crisp and 32 more | 2 hr |
Nearby
Mesoscale Discussions in Georgia, 2013Mesoscale Discussions in Florida, 2013Mesoscale Discussions in South Carolina, 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.