Alert archive / Georgia / Tornado Watches in 2010
Tornado Watch 66
The Storm Prediction Center issued this tornado watch at Apr 8, 2010, 4:28 PM EDT for 59 counties in Georgia; 7 counties in North Carolina; 22 counties in South Carolina. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2010, 4:28 PM EDT (20:28 UTC)
- Expired
- Apr 8, 2010, 11:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 88 counties
Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Clarke County, GA, Columbia County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Franklin County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Hart County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Laurens County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Schley County, GA, Screven County, GA, Stephens County, GA, Sumter County, GA, Taliaferro County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Twiggs County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Cabarrus County, NC, Davie County, NC, Gaston County, NC, Iredell County, NC, Mecklenburg County, NC, Rowan County, NC, Union County, NC, Abbeville County, SC, Aiken County, SC, Anderson County, SC, Barnwell County, SC, Cherokee County, SC, Chester County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Lancaster County, SC, Laurens County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Oconee County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Union County, SC, York County, SC
The radar
The Greer radar (KGSP), 132 km from the middle of the area, began a volume at 20:31 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
- 30%
- One or more gusts of 65 knots or more
- 30%
- 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
- 40%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 4:40 PM EDT | Severe Thunderstorm Warning | GSP | Franklin, Hart, Stephens | 65 min |
| Apr 8, 5:08 PM EDT | Tornado Warning | GSP | Anderson, Oconee, Pickens | 33 min |
| Apr 8, 5:32 PM EDT | Tornado Warning | GSP | Anderson, Pickens | 31 min |
| Apr 8, 5:50 PM EDT | Severe Thunderstorm Warning | CAE | Lincoln | 70 min |
| Apr 8, 6:13 PM EDT | Severe Thunderstorm Warning | GSP | Cherokee, Spartanburg | 62 min |
| Apr 8, 6:23 PM EDT | Tornado Warning | GSP | Greenville, Laurens, Spartanburg | 22 min |
| Apr 8, 6:38 PM EDT | Tornado Warning | GSP | Catawba, Gaston, Lincoln | 37 min |
| Apr 8, 6:55 PM EDT | Severe Thunderstorm Warning | GSP | Greenwood | 35 min |
| Apr 8, 7:03 PM EDT | Severe Thunderstorm Warning | GSP | Catawba, Davie, Iredell, Rowan | 57 min |
| Apr 8, 8:05 PM EDT | Severe Thunderstorm Warning | CAE | Columbia, Lincoln, McDuffie | 40 min |
| Apr 8, 8:12 PM EDT | Severe Thunderstorm Warning | CAE | Edgefield, McCormick | 48 min |
| Apr 8, 8:33 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Edgefield, Saluda | 44 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 170 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
- 7 J/kg
- Mixed-layer CIN
- -320 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 156 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 |
|---|---|---|---|---|
| Apr 8, 12:24 PM EDT | Mesoscale Discussion | SPC | Baker, Calhoun, Chattahoochee, Clay, Decatur, Dooly and 19 more | 66 min |
| Apr 8, 2:02 PM EDT | Tornado Watch | SPC | Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more | 4 hr |
| Apr 8, 4:00 PM EDT | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Columbia, Crawford, Crisp and 32 more | 2 hr |
| Apr 8, 5:37 PM EDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 27 more | 83 min |
| Apr 8, 6:01 PM EDT | Tornado Watch | SPC | Appling, Atkinson, Bacon, Baker, Ben Hill, Berrien and 26 more | 4 hr |
| Apr 8, 7:23 PM EDT | Mesoscale Discussion | SPC | Baldwin, Bibb, Bleckley, Bulloch, Burke, Candler and 32 more | 2 hr |
| Apr 8, 7:42 PM EDT | Mesoscale Discussion | SPC | Appling, Atkinson, Bacon, Berrien, Brantley, Brooks and 16 more | 2 hr |
| Apr 8, 6:37 PM EDT | Mesoscale Discussion | SPC | Alamance, Anson, Cabarrus, Caswell, Catawba, Chatham and 23 more | 53 min |
| Apr 8, 7:12 PM EDT | Tornado Watch | SPC | Alamance, Anson, Caswell, Chatham, Davidson, Forsyth and 12 more | 3 hr |
Nearby
Tornado Watches in Georgia, 2010Tornado Watches in South Carolina, 2010Tornado Watches in North Carolina, 2010Every tornado watch in 2010
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.