Alert archive / Georgia / Severe Thunderstorm Watches in 2023

Severe Thunderstorm Watch 607

August 7, 202349 counties in Georgia; 46 counties in North Carolina; 26 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Aug 7, 2023, 4:30 PM EDT for 49 counties in Georgia; 46 counties in North Carolina; 26 counties in South Carolina. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Aug 7, 2023, 4:30 PM EDT (20:30 UTC)
Expired
Aug 7, 2023, 11:13 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
65 kt
All 121 counties

Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Burke County, GA, Columbia County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Glascock County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Houston County, GA, Jasper County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Lincoln County, GA, Macon County, GA, Madison County, GA, McDuffie County, GA, Meriwether County, GA, Monroe County, GA, Montgomery County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Richmond County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Warren County, GA, Washington County, GA, Wheeler County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Anson County, NC, Beaufort County, NC, Bladen County, NC, Brunswick County, NC, Carteret County, NC, Chatham County, NC, Columbus County, NC, Craven County, NC, Cumberland County, NC, Dare County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, New Hanover County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Pender County, NC, Pitt County, NC, Richmond County, NC, Robeson County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Aiken County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Chesterfield County, SC, Clarendon County, SC, Darlington County, SC, Dillon County, SC, Edgefield County, SC, Fairfield County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Marion County, SC, Marlboro County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Williamsburg County, SC

The radar

The Raleigh/Durham radar (KRAX), 127 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
20%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
90%
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
5%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

57 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 7, 4:50 PM EDTSevere Thunderstorm WarningFFCBanks, Hall, Jackson, Madison40 min
Aug 7, 4:58 PM EDTSevere Thunderstorm WarningCAEEdgefield, McCormick32 min
Aug 7, 5:09 PM EDTSevere Thunderstorm WarningFFCBibb, Jones, Twiggs, Wilkinson21 min
Aug 7, 5:27 PM EDTSevere Thunderstorm WarningRAHDavidson, Forsyth, Guilford, Montgomery, Randolph, Stanly63 min
Aug 7, 5:34 PM EDTSevere Thunderstorm WarningCAEAiken, Edgefield, Lexington, Saluda26 min
Aug 7, 5:39 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEFairfield, Newberry, Saluda27 min
Aug 7, 5:43 PM EDTTornado WarningRAHMontgomery, Stanly47 min
Aug 7, 5:46 PM EDTSevere Thunderstorm WarningFFCClarke, Oconee, Oglethorpe, Wilkes44 min
Aug 7, 5:46 PM EDTSevere Thunderstorm WarningCAELancaster44 min
Aug 7, 5:54 PM EDTSevere Thunderstorm WarningFFCClayton, Coweta, Fayette, Henry, Meriwether, Newton and 3 more35 min
Aug 7, 5:54 PM EDTSevere Thunderstorm WarningRAHAnson, Montgomery, Richmond, Stanly36 min
Aug 7, 5:54 PM EDTSevere Thunderstorm WarningCAEAiken, Calhoun, Lexington, Richland51 min
Aug 7, 5:59 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEFairfield, Newberry, Saluda61 min
Aug 7, 6:13 PM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Orangeburg, Richland, Sumter47 min
Aug 7, 6:14 PM EDTSevere Thunderstorm WarningCAEEdgefield, McCormick, Saluda46 min
Aug 7, 6:21 PM EDTSevere Thunderstorm Warning Considerable damage threatRAHAnson, Harnett, Hoke, Lee, Montgomery, Moore and 2 more54 min
Aug 7, 6:22 PM EDTSevere Thunderstorm WarningFFCJefferson, Johnson, Washington, Wilkinson38 min
Aug 7, 6:24 PM EDTSevere Thunderstorm Warning Considerable damage threatRAHAlamance, Chatham, Guilford, Lee, Moore, Orange and 1 more51 min
Aug 7, 6:25 PM EDTSevere Thunderstorm WarningFFCJasper, Putnam50 min
Aug 7, 6:25 PM EDTSevere Thunderstorm WarningCAEChesterfield, Kershaw, Lancaster50 min
Aug 7, 6:27 PM EDTTornado WarningRAHChatham, Lee, Randolph33 min
Aug 7, 6:29 PM EDTSevere Thunderstorm WarningFFCClarke, Greene, Jasper, Morgan, Oconee, Oglethorpe and 1 more46 min
Aug 7, 6:29 PM EDTSevere Thunderstorm WarningCAEChesterfield, Fairfield, Kershaw, Lancaster, Lexington, Newberry and 2 more46 min
Aug 7, 6:34 PM EDTSevere Thunderstorm WarningFFCCrawford, Monroe, Upson41 min
Aug 7, 6:35 PM EDTSevere Thunderstorm Warning Considerable damage threatCAECalhoun, Kershaw, Lee, Richland, Sumter40 min
Aug 7, 6:39 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEAiken, Calhoun, Edgefield, Lexington, Richland66 min
Aug 7, 6:42 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEBamberg, Calhoun, Clarendon, Orangeburg33 min
Aug 7, 6:43 PM EDTSevere Thunderstorm WarningILMRobeson62 min
Aug 7, 6:50 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEChesterfield, Kershaw, Lee, Sumter55 min
Aug 7, 6:52 PM EDTSevere Thunderstorm Warning Considerable damage threatCAECalhoun, Clarendon, Richland, Sumter38 min
Aug 7, 6:59 PM EDTSevere Thunderstorm Warning Considerable damage threatRAHCumberland, Harnett, Hoke, Moore, Scotland61 min
Aug 7, 7:01 PM EDTSevere Thunderstorm WarningFFCBaldwin, Glascock, Hancock, Taliaferro, Warren, Washington and 1 more44 min
Aug 7, 7:03 PM EDTSevere Thunderstorm WarningFFCBibb, Jones, Monroe42 min
Aug 7, 7:04 PM EDTSevere Thunderstorm Warning Considerable damage threatRAHChatham, Durham, Franklin, Granville, Johnston, Lee and 2 more56 min
Aug 7, 7:05 PM EDTSevere Thunderstorm WarningFFCEmanuel, Jefferson, Johnson40 min
Aug 7, 7:07 PM EDTSevere Thunderstorm WarningFFCBleckley, Johnson, Laurens53 min
Aug 7, 7:12 PM EDTSevere Thunderstorm WarningFFCBibb, Twiggs31 min
Aug 7, 7:13 PM EDTSevere Thunderstorm Warning Considerable damage threatCAEAiken, Bamberg, Barnwell, Calhoun, Clarendon, Lexington and 2 more62 min
Aug 7, 7:21 PM EDTSevere Thunderstorm WarningCAECalhoun, Clarendon, Lee, Richland, Sumter39 min
Aug 7, 7:25 PM EDTSevere Thunderstorm WarningILMDarlington, Florence, Marion, Williamsburg65 min
Aug 7, 7:28 PM EDTSevere Thunderstorm WarningFFCBaldwin, Jones, Twiggs, Washington, Wilkinson47 min
Aug 7, 7:41 PM EDTSevere Thunderstorm WarningILMBladen, Columbus, Robeson64 min
Aug 7, 7:41 PM EDTSevere Thunderstorm WarningRAHCumberland, Sampson64 min
Aug 7, 7:43 PM EDTSevere Thunderstorm WarningILMDarlington, Dillon, Florence, Marlboro32 min
Aug 7, 7:53 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Franklin, Halifax, Johnston, Nash, Wake and 2 more67 min
Aug 7, 8:03 PM EDTSevere Thunderstorm WarningMHXDuplin, Greene, Jones, Lenoir57 min
Aug 7, 8:17 PM EDTSevere Thunderstorm Warning Considerable damage threatILMBrunswick, Columbus58 min
Aug 7, 8:18 PM EDTSevere Thunderstorm WarningRAHHalifax, Warren42 min
Aug 7, 8:18 PM EDTTornado WarningILMHorry, Marion27 min
Aug 7, 8:33 PM EDTSevere Thunderstorm WarningMHXBeaufort, Greene, Lenoir, Martin, Pitt, Washington57 min
Aug 7, 8:43 PM EDTSevere Thunderstorm WarningRAHSampson19 min
Aug 7, 8:50 PM EDTSevere Thunderstorm WarningMHXBeaufort, Carteret, Craven, Duplin, Greene, Jones and 4 more55 min
Aug 7, 8:57 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Halifax18 min
Aug 7, 9:03 PM EDTSevere Thunderstorm WarningILMBladen, Brunswick, Columbus, New Hanover, Pender57 min
Aug 7, 9:25 PM EDTSevere Thunderstorm WarningMHXBeaufort, Craven, Hyde, Martin, Pamlico, Pitt and 2 more50 min
Aug 7, 9:35 PM EDTSevere Thunderstorm WarningMHXBeaufort, Carteret, Craven, Duplin, Hyde, Jones and 3 more40 min
Aug 7, 10:17 PM EDTSevere Thunderstorm WarningMHXBeaufort, Carteret, Craven, Hyde, Pamlico43 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.5 hours before the alert went out and 146 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2023-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2023-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
502 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

307 
WWUS20 KWNS 072026
SEL7  
SPC WW 072026
GAZ000-NCZ000-SCZ000-080400-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 607
NWS Storm Prediction Center Norman OK
430 PM EDT Mon Aug 7 2023

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central and Eastern Georgia
  North Carolina
  South Carolina

* Effective this Monday afternoon from 430 PM until Midnight EDT.

* Primary threats include...
  Widespread damaging winds likely with isolated significant gusts
    to 75 mph possible
  Isolated large hail events to 1 inch in diameter possible
  A tornado or two possible

SUMMARY...Storms may intensify and become severe initially across
central Georgia into the South Carolina Piedmont, but more so,
well-organized linear cluster of storms ongoing late this afternoon
across northern Georgia and the western Carolinas will steadily move
eastward through this evening. Widespread damaging winds are
expected.

The severe thunderstorm watch area is approximately along and 90
statute miles east and west of a line from 45 miles northeast of
Rocky Mount NC to 15 miles east southeast of Macon GA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 599...WW 600...WW
601...WW 602...WW 603...WW 604...WW 605...WW 606...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 65 knots. A few
cumulonimbi with maximum tops to 550. Mean storm motion vector
27035.

...Guyer

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 7, 10:33 AM EDTMesoscale DiscussionSPCBartow, Catoosa, Chattooga, Dade, Fannin, Floyd and 7 more117 min
Aug 7, 11:40 AM EDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 39 more8 hr
Aug 7, 2:09 PM EDTMesoscale DiscussionSPCBartow, Carroll, Catoosa, Chattooga, Cherokee, Cobb and 20 more2 hr
Aug 7, 2:44 PM EDTSevere Thunderstorm WatchSPCElbert, Franklin, Habersham, Hart, Rabun, Stephens4 hr
Aug 7, 3:59 PM EDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Burke, Columbia, Crawford and 34 more2 hr
Aug 7, 4:32 PM EDTMesoscale DiscussionSPCBanks, Barrow, Bartow, Carroll, Cherokee, Clarke and 29 more118 min
Aug 7, 7:27 PM EDTMesoscale DiscussionSPCBleckley, Bryan, Bulloch, Candler, Chatham, Dodge and 15 more2 hr
Aug 7, 7:42 PM EDTSevere Thunderstorm WatchSPCBulloch, Candler, Effingham, Jenkins, Screven3 hr
Aug 7, 8:18 AM EDTMesoscale DiscussionSPCAlleghany, Ashe, Avery, Mitchell, Surry, Watauga and 1 more117 min
Aug 7, 11:17 AM EDTTornado WatchSPCAvery, Buncombe, Cherokee, Clay, Graham, Haywood and 6 more7 hr
Aug 7, 12:14 PM EDTMesoscale DiscussionSPCAlleghany2 hr
Aug 7, 1:19 PM EDTMesoscale DiscussionSPCAlamance, Alexander, Anson, Buncombe, Burke, Cabarrus and 29 more116 min
Aug 7, 1:36 PM EDTMesoscale DiscussionSPCCherokee, Graham, Haywood, Jackson, Madison, Swain114 min
Aug 7, 1:51 PM EDTTornado WatchSPCAlamance, Alexander, Alleghany, Ashe, Burke, Caldwell and 17 more6 hr
Aug 7, 4:08 PM EDTMesoscale DiscussionSPCAlexander, Alleghany, Ashe, Burke, Caldwell, Catawba and 12 more97 min
Aug 7, 5:47 PM EDTMesoscale DiscussionSPCAlamance, Anson, Cabarrus, Chatham, Cumberland, Davidson and 24 more118 min
Aug 7, 7:59 PM EDTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Chowan, Craven, Currituck and 26 more2 hr

Nearby

Severe Thunderstorm Watches in Georgia, 2023Severe Thunderstorm Watches in North Carolina, 2023Severe Thunderstorm Watches in South Carolina, 2023Every severe thunderstorm watch in 2023

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.