Scattered to numerous thunderstorms developed in the afternoon hours across much of southeast Georgia. A few of these thunderstorms became strong enough to produce damaging wind gusts.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CHS wrote it up.
Scattered to numerous thunderstorms developed in the afternoon hours across much of southeast Georgia. A few of these thunderstorms became strong enough to produce damaging wind gusts.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, SC wrote its last area forecast discussion before the first event at Jul 10, 2:21 PM EST, 1 hour 9 minutes earlier.
Area Forecast Discussion National Weather Service Charleston SC 321 PM EDT Sat Jul 10 2021 .SYNOPSIS... A weak trough of low pressure will linger across the area this evening. High pressure will then build over the area through next week. && .NEAR TERM /UNTIL 6 AM SUNDAY MORNING/... Late Afternoon: Showers and thunderstorms have initiated across parts of southeast Georgia, mainly near the coast and just upstream of the area within the last hour or two. Much like yesterday, convection developing across the area should remain sub-severe, while convection well inland becomes more organized and capable of becoming stronger while traversing western zones across southeast Georgia. Although the threat of severe weather remains low given weak shear and DCAPE considerably lower than the previous day, should upstream convection cold pool and interact with boundaries across the local area, particularly with a seabreeze where MLCAPE around 2000 J/kg resides, a few stronger and/or marginally severe thunderstorms could occur with strong winds being main concern. Precip coverage should remain highest across southeast Georgia into early evening. Tonight: Scattered showers and thunderstorms should linger into early evening with mesoscale boundary interactions driving the bulk of convection. There should then be a lull in precip activity for at least a few hours during the middle of the night, before sfc low pressure develops across the South Carolina upstate region and well inland across North Carolina. The formation of the sfc low along with high pressure across the western Atlantic will help advect moisture to the region (PWATs around 2.0 inches) within a light south-southwest flow late. The combination of moisture and mid-lvl vort energy advancing onshore and north should result in few to scattered showers and thunderstorms heading into daybreak, mainly along and east of the I-95 corridor. Overnight lows will remain mild, generally ranging in the low-mid 70s away from the immediate coastline. && .SHORT TERM /6 AM SUNDAY MORNING THROUGH TUESDAY/... Relatively deep tropical moisture will continue through Sunday with PWATs around 2.2". Some shortwave energy may move through from the south or southeast and a decent sea breeze is expected to move inland during the day. With moderate instability expected to develop late morning, scattered showers and tstms expected. Farther inland where a weak surface trough will reside, the coverage could become numerous during the afternoon hours. A deep layered ridge will gradually build over the western Atlantic Monday into Tuesday. PWATs are expected to decrease to around 1.8". Mainly scattered diurnal convection expected both days. Temps will be at or slightly below normal Sunday through Tuesday. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... Surface high pressure will extend into the area through late week. Aloft, ridging will persist along/near the Southeast coast. Scattered showers and thunderstorms are possible each day, generally driven by daytime heating and mesoscale boundaries such as the sea breeze. Temperatures through the period will be within a few degrees of climatology. && .AVIATION /19Z SATURDAY THROUGH THURSDAY/... VFR conditions are expected at CHS/JZI/SAV terminals for the next couple hours before attention turns to thunderstorm potential across the area mid-late afternoon. Latest guidance indicates the best coverage of thunderstorms around the SAV terminal late afternoon where tempo MVFR conditions have been included between 20-23Z. A thunderstorm can't be ruled out near CHS and JZI terminals as well, but confidence remains considerably lower. Thus, only VCSH begins around 21-22Z for these terminals and ends by 01Z this evening. VFR conditions should prevail at all terminals for much of the night and through late morning hours Sunday. However, there remains a limited risk of a shower and/or thunderstorm shifting onshore and impacting any terminal late Sunday morning. Timing and confidence remains too low to include in the latest TAF issuance. Extended Aviation Outlook: Brief flight restrictions are possible in showers and thunderstorms, mainly during the daytime hours. && .MARINE... This Evening through Tonight: A south-southwest wind will persist through the overnight period along the southern edge of low pressure inland and the western edge of high pressure offshore. In general, winds should peak up to 15-20 kt near the CHS Harbor during the next few hours. Otherwise, wind speeds will mostly be in the 10-15 kt range. Seas should average 2-3 ft. Sunday through Thursday: A deep layered ridge across the western Atlantic, extending into the Southeast states, will maintain a southerly wind component. No marine concerns are expected with speeds generally in the 10-15 knot range. Seas will average 2-4 feet, highest beyond 20 nm. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && NEAR TERM...DPB SHORT TERM...JRL LONG TERM...JRL AVIATION...DPB/JRL MARINE...DPB/JRL
Hazardous Weather Outlook National Weather Service Charleston SC 340 AM EDT Sat Jul 10 2021 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040- 042>045-047>052-110745- Charleston Harbor- Waters from South Santee River to Edisto Beach SC out 20 NM- Waters from Edisto Beach SC to Savannah GA out 20 NM- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans- Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long- Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh- Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley- Inland Jasper-Beaufort-Coastal Colleton-Charleston-Coastal Jasper- Tidal Berkeley- 340 AM EDT Sat Jul 10 2021 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
The Charleston,SC radar (KCLX), 104 km away, was scanning. The volume nearest the first event began at 20:29 UTC.
1 thunderstorm wind. Local standard time, as filed.
Liberty County dispatch reported a tree down on a mobile home. A person inside was temporarily trapped, but was not injured. Another tree also fell on a home nearby. About 20 trees were estimated to be down in the general area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2021Every state in 2021This day in weather historyWarnings in Georgia, July 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 965937.