An area of thunderstorms developed in the afternoon hours across southeast Georgia and progressed into southeast South Carolina. These thunderstorms formed in a warm and unstable airmass around the periphery of the remnants of Tropical Cyclone Harvey as it moved across the Tennessee Valley.
Every event with a place to put it. Tap one for its entry below.
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.
An area of thunderstorms developed in the afternoon hours across southeast Georgia and progressed into southeast South Carolina. These thunderstorms formed in a warm and unstable airmass around the periphery of the remnants of Tropical Cyclone Harvey as it moved across the Tennessee Valley. 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 Sep 1, 2:22 PM EST, 1 hour 3 minutes earlier.
Area Forecast Discussion National Weather Service Charleston SC 322 PM EDT Fri Sep 1 2017 .SYNOPSIS... A warm front will linger north of the region through early Saturday as the remnants of Harvey move through the Tennessee Valley. A cold front will approach from the northwest this weekend, then become stationary into early next week. Another cold front is expected to approach the region during the second half of next week. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... A QLCS near the Midlands/CSRA will continue to progress north and east through the rest of the afternoon, eventually meeting up with the sea breeze near I-95. SPC mesoanalysis indicates sufficient instability and shear for organized convection capable of producing damaging winds, mainly across inland areas through early evening. Overnight rain chances will diminish but can't rule out at least a few showers mainly toward the coast closer to the better instability as some upper forcing lingers across the area. Lows will range from the lower to mid 70s inland to the upper 70s along the beaches. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/... Saturday: The remnant low pressure formerly known as Harvey will continue to travel northeast away from the forecast area as a stalled front persists across North Carolina. A cold front will approach the area from the northwest. Continued southwest flow will maintain ample moisture over the region as the upper level trough approaches from the west. Divergence overhead will contribute to the formation of scattered to numerous showers and thunderstorms over land zones, with the best potential shifting offshore into the coastal waters late in the day. Temperatures through the period will be within 1-2 degrees of normal. Sunday: A relatively drier day is anticipated, as surface pressures climb slightly while upper-level Atlantic ridging creeps closer to the forecast area. While the cold front is anticipated to remain near or over the forecast area, notably less impressive instability and shear parameters will persist over much of the area. At this time, the majority of precipitation appears to remain offshore or near the coast. Near-normal temperatures are anticipated. Monday: Atlantic high pressure will continue to extend into the forecast area as some deeper moisture manages to return overhead and peak surface-based CAPEs rebound somewhat compared to Sunday. The latest guidance does depict weak upper level convergence persisting for much of Monday, implying that weak atmospheric descent will aid in limiting convective coverage. This is supported by lower-mid level omega fields in several models exhibiting sinking motion. Despite this, showers and thunderstorms cannot be entirely ruled out, and slight chance POPs will continue to serve the forecast well, with best potential remaining near the coast. Near-normal temperatures will continue. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... An unsettled pattern is expected as a large mid/upper level trough expands over the Central U.S. A cold front associated with this feature should approach our area midweek. With southerly flow ahead of the front and increasing moisture, there should be increasing chances of showers and thunderstorms through Wednesday. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... Expect a line of storms to push east toward the terms later this afternoon into early evening. Confidence is higher in more significant impacts at KSAV than at KCHS. Timing at this time should be mainly 21-23Z at KSAV and 22-24Z at KCHS. IFR or worse conditions are possible but maintained no lower than MVFR for now. MVFR cigs could develop late tonight but confidence is low at this time. Extended Aviation Outlook: Brief flight restrictions will be possible due to direct impacts from showers/thunderstorms, mainly each afternoon/evening, with greatest chances Saturday and Tuesday. && .MARINE... Today and Tonight: South winds will veer to the southwest overnight. Speeds will remain less than 15 kt with seas 2-3 ft nearshore waters and 3-4 ft offshore waters. A line of strong to possibly severe tstms could move into the coastal waters by late afternoon or early evening. These storms will pose a risk for winds >34 kt with low vsbys in locally heavy rainfall and cloud-to-water lightning. Special Marine Warnings may be needed. Saturday through Tuesday: Coastal waters will remain primarily under the influence of Atlantic high pressure, generating S to SW winds through early Sunday, peaking 15-20 knots. Latest guidance suggests winds may briefly veer NW Sunday morning for a few hours as a nearly- stationary front tips into the coastal waters. Initiation of a seabreeze circulation combined with the dissipation of the front should permit the winds to back SW or S again by Sunday afternoon. Generally southerly flow is expected to persist into Tuesday, but conditions look favorable for a weak landbreeze to turn light winds offshore for a few hours Monday morning. Seas ranging 2-4 feet initially will gradually subside to 1-2 ft by Sunday. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && NEAR TERM...RJB SHORT TERM...JMC LONG TERM... AVIATION...JMC/RJB MARINE...JMC/RJB
Hazardous Weather Outlook National Weather Service Charleston SC 304 PM EDT Fri Sep 1 2017 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040- 042>045-047>052-021915- 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 extending 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- 304 PM EDT Fri Sep 1 2017 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...This Afternoon and Tonight. Severe Thunderstorms: Scattered to numerous showers and thunderstorms are expected to impact much of Southeast South Carolina and Southeast Georgia this afternoon and evening. There is a potential for severe thunderstorms to develop with damaging winds being the primary hazard. Frequent cloud to ground lighting and locally heavy rainfall are also likely. The risk for severe thunderstorms will be the greatest between 2 pm and 8 pm. For mariners, strong to severe thunderstorm could move into the coastal waters by late afternoon and persist through the evening hours. People across Southeast South Carolina and Southeast Georgia should continue to monitor weather conditions throughout the day. Be prepared to take action should watches and warnings be issued for your area. Stay tuned to NOAA Weather Radio All Hazards, TV or your local news source for the latest information from the National Weather Service. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
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</html>Special Weather Statement
National Weather Service Charleston SC
232 PM EDT FRI SEP 1 2017
GAZ101-SCZ042-047-011900-
Effingham-Inland Jasper-Hampton-
232 PM EDT FRI SEP 1 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF EFFINGHAM...HAMPTON
AND JASPER COUNTIES...
At 231 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm over Shawnee, or 7 miles north of Springfield,
moving northeast at 30 mph.
HAZARD...strong winds 45 to 55 mph and up to penny sized hail.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely.
Some locations in the path of this storm include...
Ridgeland, Furman, Garnett, Shawnee, Pineland, Tillman, Tarboro and
Robertville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3238 8145 3253 8148 3274 8108 3247 8098
TIME...MOT...LOC 1831Z 243DEG 36KT 3248 8136
ECTSpecial Weather Statement
National Weather Service Charleston SC
250 PM EDT FRI SEP 1 2017
GAZ100-101-011915-
Bulloch-Effingham-
250 PM EDT FRI SEP 1 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BULLOCH AND EFFINGHAM
COUNTIES...
At 250 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Stilson, or 8 miles northeast of Bay, moving
northeast at 30 mph.
HAZARD...strong winds 45 to 55 mph and up to penny sized hail.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely.
Some locations in the path of this storm include...
Springfield, Rincon, Guyton, Pineora, Egypt, Marlow, Shawnee and
Stillwell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3223 8154 3238 8164 3253 8134 3231 8117
TIME...MOT...LOC 1850Z 243DEG 29KT 3232 8150
ECTSpecial Weather Statement
National Weather Service Charleston SC
405 PM EDT FRI SEP 1 2017
GAZ100-101-012045-
Bulloch-Effingham-
405 PM EDT FRI SEP 1 2017
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BULLOCH AND EFFINGHAM
COUNTIES...
At 405 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Stilson, or 9 miles northeast of Bay, moving
northeast at 35 mph.
HAZARD...strong winds 45 to 55 mph and up to penny sized hail.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely.
Some locations in the path of this storm include...
Springfield, Bay, Guyton, Pineora, Egypt, Marlow, Shawnee and
Stillwell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3257 8138 3250 8124 3237 8118 3224 8143
3224 8144 3221 8157 3230 8168
TIME...MOT...LOC 2005Z 228DEG 31KT 3232 8147
JMCThe Charleston,SC radar (KCLX), 38 km away, was scanning. The volume nearest the first event began at 20:22 UTC.
5 thunderstorm wind. Local standard time, as filed.
South Carolina Highway Patrol reported a tree down on Highway 321 near the intersection with Honey Hill Road.
Colleton County dispatch reported a tree down on Pierce Road near Cottageville Highway.
South Carolina Highway Patrol reported 2 trees down in the 3500 block of Rhode Drive.
South Carolina Highway Patrol reported a tree down on Highway 61 near the intersection with Old Beech Hill Road.
South Carolina Highway Patrol reported a tree down on Dawson Branch Road near the intersection with Highway 78.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2017Every state in 2017This day in weather historyWarnings in South Carolina, September 2017
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: 718350, 718351, 718352, 718353, 718354.