Alert archive / Georgia / Tornado Watches in 2009
Tornado Watch 31
The Storm Prediction Center issued this tornado watch at Feb 19, 2009, 2:44 AM EST for 7 counties in Georgia; Beaufort County, Jasper County, South Carolina. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 19, 2009, 2:44 AM EST (07:44 UTC)
- Expired
- Feb 19, 2009, 5:41 AM EST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Bryan County, GA, Chatham County, GA, Evans County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Tattnall County, GA, Beaufort County, SC, Jasper County, SC
The radar
The Charleston,SC radar (KCLX), 104 km from the middle of the area, began a volume at 07:48 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 4:00 AM EST | Severe Thunderstorm Warning | CHS | Liberty, Long, McIntosh | 28 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Jacksonville, FL (KJAX), launched 00:00Z, 7.7 hours before the alert went out and 161 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
- 2 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 988 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 371 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 8:02 PM EST | Severe Thunderstorm Watch | SPC | Bryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more | 7 hr |
| Feb 18, 8:14 PM EST | Mesoscale Discussion | SPC | Carroll, Coweta, Douglas, Fayette, Haralson, Harris and 6 more | 61 min |
| Feb 18, 8:58 PM EST | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Burke, Butts, Chattahoochee and 51 more | 92 min |
| Feb 18, 10:14 PM EST | Severe Thunderstorm Watch | SPC | Baker, Baldwin, Ben Hill, Berrien, Bibb, Bleckley and 72 more | 6 hr |
| Feb 18, 11:55 PM EST | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Baldwin, Ben Hill and 85 more | 95 min |
| Feb 19, 12:38 AM EST | Severe Thunderstorm Watch | SPC | Appling, Atkinson, Bacon, Brantley, Camden, Charlton and 8 more | 81 min |
| Feb 19, 1:41 AM EST | Mesoscale Discussion | SPC | Brantley, Brooks, Camden, Charlton, Clinch, Colquitt and 9 more | 49 min |
| Feb 19, 1:58 AM EST | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 31 more | 7 hr |
| Feb 19, 2:20 AM EST | Mesoscale Discussion | SPC | Bryan, Bulloch, Candler, Chatham, Crisp, Dodge and 13 more | 25 min |
| Feb 19, 4:19 AM EST | Mesoscale Discussion | SPC | Atkinson, Bacon, Brantley, Brooks, Bryan, Camden and 15 more | 56 min |
Nearby
Tornado Watches in Georgia, 2009Tornado Watches in South Carolina, 2009Every tornado watch in 2009
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.