Clusters of thunderstorms developed along a stationary front that stretched west to east across southeast South Carolina. These thunderstorms began developing around midday and eventually drifted southward into southeast Georgia, producing strong 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.
Clusters of thunderstorms developed along a stationary front that stretched west to east across southeast South Carolina. These thunderstorms began developing around midday and eventually drifted southward into southeast Georgia, producing strong 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, 2:58 PM EST, 41 minutes earlier.
Area Forecast Discussion National Weather Service Charleston SC 358 PM EDT Thu Sep 1 2022 .SYNOPSIS... A weakening cold front will move through the region tonight then will stall south of the area. A series of disturbances will affect the area Friday through next week. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... Radar indicates a large band of convection over a significant portion of our area. Unfortunately, both the synoptic models and the CAMs failed to accurately capture the location and intensity of this convection. For this reason, much of the POP/Wx grids had to be overhauled, going based on radar trends, then having the convection gradually dissipate into the evening. Models indicate more convection developing over the coastal waters after midnight, then moving onshore. We're somewhat skeptical of this happening along with the rainfall amounts given how bad the models have been doing. But given how moist the area is (dew points in the 70s and PWATs near 2"), it's reasonable the showers will develop. We generally went with chance POPs over the waters, brushing the coast after midnight. Given the copious rainfall amounts in some spots already, there is the concern of shallow fog and/or stratus build-down. The wild card may be the location of the weak front. It's expected to slowly move south through our SC counties this evening, then transition into a stationary front around midnight near the SC/GA state line. The front may meander slightly to the north after midnight. Fog/stratus certainly could form around this front. Lows will be in the 70s. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/... Aloft high pressure located to the northeast of the region will prevail through the weekend while a series of upper level disturbances ripple through the region. At the surface a front will remain nearly stationary in the vicinity of the forecast area through the weekend. Between the stalled front and the upper level disturbances unsettled conditions will persist through the weekend. Each day features POPs in the 50-60% range in the afternoon hours. Tropical-like moisture will stream into the forecast area, with PWATs generally in the 1.8-2.1 range through the weekend. Temperatures through the weekend will generally be in the mid to upper 80s, warmest across southeastern GA near the Altamaha. Overnight lows will be in the low 70s inland with mid 70s closer to the coastline. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Models are not in very good agreement through the long term period. Aloft a low pressure center and trough looks to form in the vicinity of the Mid-Atlantic states but models do not agree on the placement of these features. The forecast features scattered to isolated showers/tstorms each afternoon. Temperatures will generally be in the 80s, with overnight lows in the 70s. && .AVIATION /20Z THURSDAY THROUGH TUESDAY/... 20Z Update: Convection continues to bring brief flight restrictions to CHS/JZI. Further amendments will be needed to adjust the TEMPO and VC groups as the convection moves away from the TAF sites in the upcoming hours. For SAV, convection is approaching and could bring some brief impacts in the upcoming hours. The worst convection is expected to end around 00Z. However, then concern shifts towards stratus build-down and/or MIFG in areas that received the most rainfall, especially nearby the front. We hinted at this in the TAFs, but wouldn't be surprised if future forecasts need to dramatically increase these flight restrictions. Extended Aviation Outlook: Showers/tstorms could bring flight restrictions at any time through Monday. && .MARINE... Through Sunset: Showers and Thunderstorms will bring locally hazardous conditions, including gusty winds, cloud to water lightning, and reduced visibilities. Tonight: A weak cold front is expected to slowly move south through our SC waters this evening, then transition into a stationary front around midnight near the SC/GA state line. The front may meander slightly to the north after midnight. Even with this front spread across our waters, the surface pressure gradient is expected to remain weak. Winds should mostly be from the east at 5-10 kt, transitioning to the northeast by daybreak Friday. Seas will average 2 ft. Extended Marine: High pressure aloft will prevail through the weekend and into early next week. At the surface a stationary front will stall in the vicinity of the forecast area, leading to isolated to scattered showers/tstorms across the waters through the weekend. E/NE flow will persist across the marine waters, generally 10 to 15 knots. Seas should average 2 to 3 feet. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && NEAR TERM... SHORT TERM...CPM LONG TERM...CPM AVIATION...CPM MARINE...CPM
Hazardous Weather Outlook National Weather Service Charleston SC 409 AM EDT Thu Sep 1 2022 AMZ330-350-352-354-374-GAZ087-088-099>101-114>119-137>141-SCZ040- 042>045-047>052-020815- 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- 409 AM EDT Thu Sep 1 2022 This Hazardous Weather Outlook is for Atlantic coastal waters, southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter assistance is not anticipated at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
421 PM EDT THU SEP 01 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0418 PM HEAVY RAIN 1 WNW CHARLESTON 32.79N 79.95W
09/01/2022 U0.00 INCH CHARLESTON SC LAW ENFORCEMENT
PRESIDENT STREET BETWEEN SPRING STREET AND FISHBURN
STREET IS CLOSED DUE TO FLOODING.
&&
EVENT NUMBER CHS2201251
33PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
422 PM EDT THU SEP 01 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0421 PM HEAVY RAIN 1 ESE CHARLESTON 32.78N 79.93W
09/01/2022 U0.00 INCH CHARLESTON SC LAW ENFORCEMENT
CHARLESTON POLICE REPORT THAT SOUTH MARKET STREET
BETWEEN MEETING STREET AND EAST BAY STREET ARE CLOSED
DUE TO FLOODING.
&&
EVENT NUMBER CHS2201252
33PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
425 PM EDT THU SEP 01 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0424 PM HEAVY RAIN 1 WNW CHARLESTON 32.79N 79.96W
09/01/2022 U0.00 INCH CHARLESTON SC LAW ENFORCEMENT
CHARLESTON POLICE REPORT THAT FISHBURNE STREET AT
HAGOOD AVENUE IS CLOSED DUE TO FLOODING.
&&
EVENT NUMBER CHS2201253
33PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
431 PM EDT THU SEP 01 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0419 PM HEAVY RAIN 1 SSE JOHNS ISLAND 32.71N 80.07W
09/01/2022 M4.75 INCH CHARLESTON SC PUBLIC
A PUBLIC WEATHER STATION AT CEDAR SPRINGS ON JOHNS
ISLAND REPORTS 4.75 INCHES OF RAIN SO FAR THIS
AFTERNOON. THIS INCLUDES 2.68 INCHES OF RAIN IN 60
MINUTES BETWEEN 3:19 PM AND 4:19 PM.
&&
EVENT NUMBER CHS2201254
33PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
437 PM EDT THU SEP 01 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0436 PM HAIL 1 SW CHARLESTON 32.78N 79.95W
09/01/2022 U0.00 INCH CHARLESTON SC LAW ENFORCEMENT
CHARLESTON POLICE REPORT LOCKWOOD DRIVE BETWEEN
WENTWORTH STREET AND BROAD STREET ARE CLOSED DUE TO
FLOODING.
&&
EVENT NUMBER CHS2201255
33Special Weather Statement
National Weather Service Charleston SC
437 PM EDT Thu Sep 1 2022
GAZ101-SCZ047-051-012115-
Effingham-Inland Jasper-Coastal Jasper-
437 PM EDT Thu Sep 1 2022
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF EFFINGHAM AND JASPER
COUNTIES...
At 437 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm over Purysburgh, or 9 miles east of Springfield,
moving southwest at 10 mph.
HAZARD...strong winds 45 to 55 mph and excessive cloud to ground
lightning.
SOURCE...Radar Indicated.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects. All outdoor activities should
cease. Move indoors immediately.
Some locations in the path of this storm include...
Rincon, Hardeeville, Purysburgh, Ebenezer and Stillwell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm and may lead to
flooding of low lying and poor drainage areas. Do not drive your
vehicle through flooded roadways.
Report damage directly to the Charleston National Weather Service at
888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3235 8130 3247 8115 3234 8095 3230 8099
3230 8100 3229 8100 3220 8109
TIME...MOT...LOC 2037Z 042DEG 9KT 3233 8115
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
NEDThe Charleston,SC radar (KCLX), 67 km away, was scanning. The volume nearest the first event began at 20:36 UTC.
2 thunderstorm wind. Local standard time, as filed.
Chatham County Emergency Management reported two trees down from an outflow boundary that passed through the area.
Chatham County Emergency Management reported a tree down from an outflow boundary that passed through the area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2022Every state in 2022This day in weather historyWarnings in Georgia, September 2022
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: 1057504, 1057505.