Alert archive / South Carolina / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 509
The Storm Prediction Center issued this severe thunderstorm watch at Jul 11, 2007, 4:01 PM EDT for 13 counties in Georgia; 6 counties in North Carolina; 26 counties in South Carolina. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 11, 2007, 4:01 PM EDT (20:01 UTC)
- Expired
- Jul 11, 2007, 8:41 PM EDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 45 counties
Bryan County, GA, Bulloch County, GA, Burke County, GA, Candler County, GA, Chatham County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Liberty County, GA, Long County, GA, McIntosh County, GA, Screven County, GA, Tattnall County, GA, Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Beaufort County, SC, Berkeley County, SC, Calhoun County, SC, Charleston County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dillon County, SC, Dorchester County, SC, Florence County, SC, Georgetown County, SC, Hampton County, SC, Horry County, SC, Jasper County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, Orangeburg County, SC, Richland County, SC, Sumter County, SC, Williamsburg County, SC
The radar
The Columbia radar (KCAE), 89 km from the middle of the area, began a volume at 20:04 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 4:09 PM EDT | Severe Thunderstorm Warning | CHS | Allendale | 51 min |
| Jul 11, 4:11 PM EDT | Severe Thunderstorm Warning | CAE | Lexington | 34 min |
| Jul 11, 4:16 PM EDT | Severe Thunderstorm Warning | CHS | Bulloch, Candler | 44 min |
| Jul 11, 4:17 PM EDT | Severe Thunderstorm Warning | CAE | Lee, Sumter | 58 min |
| Jul 11, 4:23 PM EDT | Severe Thunderstorm Warning | CAE | Bamberg, Calhoun, Orangeburg | 67 min |
| Jul 11, 4:47 PM EDT | Severe Thunderstorm Warning | CHS | Effingham | 28 min |
| Jul 11, 4:52 PM EDT | Severe Thunderstorm Warning | CHS | Screven | 38 min |
| Jul 11, 5:01 PM EDT | Severe Thunderstorm Warning | CHS | Bulloch | 14 min |
| Jul 11, 5:02 PM EDT | Severe Thunderstorm Warning | ILM | Darlington, Florence | 13 min |
| Jul 11, 5:04 PM EDT | Severe Thunderstorm Warning | CAE | Clarendon, Orangeburg, Sumter | 56 min |
| Jul 11, 5:05 PM EDT | Severe Thunderstorm Warning | CHS | Hampton, Jasper | 55 min |
| Jul 11, 5:08 PM EDT | Severe Thunderstorm Warning | CHS | Jenkins | 37 min |
| Jul 11, 5:09 PM EDT | Severe Thunderstorm Warning | CHS | Effingham | 51 min |
| Jul 11, 5:14 PM EDT | Severe Thunderstorm Warning | CHS | Dorchester | 46 min |
| Jul 11, 5:21 PM EDT | Severe Thunderstorm Warning | CHS | Colleton | 39 min |
| Jul 11, 5:25 PM EDT | Severe Thunderstorm Warning | CHS | Berkeley | 65 min |
| Jul 11, 5:29 PM EDT | Severe Thunderstorm Warning | CHS | Chatham | 46 min |
| Jul 11, 5:36 PM EDT | Severe Thunderstorm Warning | ILM | Marion | 39 min |
| Jul 11, 5:37 PM EDT | Severe Thunderstorm Warning | CHS | Screven | 24 min |
| Jul 11, 5:40 PM EDT | Severe Thunderstorm Warning | ILM | Williamsburg | 35 min |
| Jul 11, 5:56 PM EDT | Severe Thunderstorm Warning | CHS | Long | 34 min |
| Jul 11, 6:01 PM EDT | Severe Thunderstorm Warning | CHS | Beaufort, Colleton, Dorchester | 41 min |
| Jul 11, 6:11 PM EDT | Tornado Warning | CHS | Berkeley, Charleston | 49 min |
| Jul 11, 6:15 PM EDT | Severe Thunderstorm Warning | ILM | Florence, Georgetown, Horry, Marion | 45 min |
| Jul 11, 6:20 PM EDT | Tornado Warning | CHS | Charleston | 40 min |
| Jul 11, 6:53 PM EDT | Severe Thunderstorm Warning | CHS | McIntosh | 37 min |
| Jul 11, 7:03 PM EDT | Severe Thunderstorm Warning | ILM | Brunswick, Columbus | 42 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 1:03 PM EDT | Mesoscale Discussion | SPC | Baldwin, Barrow, Bibb, Bleckley, Burke, Butts and 76 more | 117 min |
Nearby
Severe Thunderstorm Watches in South Carolina, 2007Severe Thunderstorm Watches in Georgia, 2007Severe Thunderstorm Watches in North Carolina, 2007Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.