A cluster of thunderstorms developed along the southeast Georgia coast in the morning hours along a west to east oriented cold front. These storms produced damaging wind gusts on Burnside Island in Chatham County.
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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.
A cluster of thunderstorms developed along the southeast Georgia coast in the morning hours along a west to east oriented cold front. These storms produced damaging wind gusts on Burnside Island in Chatham County.
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 May 10, 6:27 AM EST, 3 hours 26 minutes earlier.
Area Forecast Discussion National Weather Service Charleston SC 727 AM EDT Sat May 10 2025 .SYNOPSIS... A front will remain stalled near our area through early next week. Low pressure will slowly move through Monday into Tuesday, followed by high pressure. && .NEAR TERM /THROUGH TONIGHT/... Early this morning, nighttime microphysics satellite product showed a band of low clouds associated with a backdoor cold front just off the coast near the NC/SC border. To the west, a sfc low is expected to organize over the Deep South, under a closed H5 low. The low is not anticipated to move much today into tonight as the closed H5 low becomes part of Rex Block. However, the circulation around the low will bring deep moisture across the CWA, with PW values ranging between 1.6 to 1.7 inches this afternoon through tonight. As the backdoor cold front reaches the forecast area around daybreak, it should begin its southward push. By this afternoon, H85 winds are forecast to shift from the south and increase to 15 to 20 kts. A west to east oriented band of isentropic lift should gradually expand across SE GA/SC this afternoon. The combination of the increased forcing and SBCAPE between 1000-1500 J/kg should support an expanding area of showers and embedded thunderstorms this afternoon, the greatest coverage of thunderstorms expected across SE GA and along the coast this afternoon. Isentropic lift should lift slowly north across SC Lowcountry tonight. SBCAPE sourced from the Gulf Stream will push along the GA/SC coast tonight, high resolution guidance indicates that convection may develop over the Atlantic and stream onshore. This process may lead to areas of very heavy rainfall, HREF indicate probabilities of 1" within 40 km increase to around 50 percent along with a 10 percent chance for 3" within 40 km. WPC has highlighted the region in their Excessive Rainfall Outlook. In addition, the environment across SE GA this afternoon may support some strong to isolated severe thunderstorms, with a risk of damaging winds and hail. Temperatures today will be limited by thick cloud cover, steady ENE winds, and rounds of rain. High temperatures are forecast to range from the low 70s across the SC Lowcountry to the mid 70s across SE GA. Tonight, low temperatures are forecast to range from the low 60s inland to the upper 60s along the coast. && .SHORT TERM /SUNDAY THROUGH TUESDAY/... A very active period is forecast in the short term period, with numerous to widespread showers and thunderstorms forecast each day. Aloft a mid-level closed low will be positioned over the southeastern states, while a the surface a front will remain stalled in the vicinity of the forecast area. Moisture will continue to be advected into the region, owing to the southwesterly flow aloft. PWATs are forecast to reach upwards of 1.8" each day through the period, which would be close to the daily maximums according to SPC Climatology. Several rounds of showers and thunderstorms are forecast through the period, with the greatest coverage likely from Sunday night through Monday night. Precipitation will likely be ongoing to start Tuesday, tapering off into Tuesday night. Generally 3 to 6 inches are forecast across the region through the period. It is worth noting that HREF probabilities show the potential (~30%) for upwards of 4 inches across portions of southeastern GA on Sunday. Given the impressive HREF probabilities the WPC continues to highlight the region in a Slight Risk for Excessive Rainfall on both Sunday and Monday. High temperatures Sunday and Monday will be below normal, given precipitation and cloud cover, with low to mid 70s and some upper 70s along the Altamaha River in GA in the forecast. With expected cloud cover, overnight lows Sunday and Monday night will remain mild, only dropping into the 60s. Temperatures on Tuesday will return to near normal as precipitation wanes and some sunshine returns, with highs reaching into the low to mid 80s. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... The mid level closed low will begin slowly ejecting northeastward towards New England in the middle of the week. By the end of the week ridging aloft will build into the southeastern states. At the surface the stalled front will move into the Atlantic waters mid week, with high pressure building in thereafter. Isolated to scattered showers and thunderstorms will be possible on Wednesday, mainly diurnally driven. As ridging builds in aloft with high pressure at the surface a mainly dry forecast is in store through the remainder of the week. Temperatures initially will be around normal, with the potential to increase to well above normal by the end of the week. && .AVIATION /12Z SATURDAY THROUGH WEDNESDAY/... 6Z TAFs: A cold front will slide south across the forecast area this morning as an area of low pressure organizes over the Deep South. As the low approaches from the west, the front should stall across the region. Forcing and instability will increase across KSAV by late this morning and KCHS/KJZI this afternoon. This environment will be ripe for rounds of showers and thunderstorms today through this evening. In addition, MVFR ceiling is forecast to develop by mid-morning and is expected to linger through the rest of the day. Extended Aviation Outlook: MVFR or lower cigs and/or vsbys possible Sunday through Tuesday as a front remains stalled nearby and several rounds of showers/tstms move through. && .MARINE... A backdoor cold front will arrive from the north this morning, then drifting to the south during the daylight hours today. Behind the front, northeast winds should increase, approaching Small Craft Advisory (SCA) criteria across the nearshore SC waters. We will monitor trends upstream this morning, it is possible one or both SC nearshore zones could be highlighted with SCA today. Winds should settle to 10 kts with gusts around 15 kts by late tonight. The strengthening winds are forecast to build seas to 3 to 5 ft by this afternoon, diminishing to 3 to 4 ft late tonight. In addition, clusters of thunderstorms will likely push across the marine zones late this afternoon into tonight, Special Marine Warnings may be needed. Sunday through Wednesday: A stalled front will linger in the vicinity of the coastal waters Sunday and into early next week. Southeasterly flow will increase Sunday, with 15-20 knots with gusts to around 23 knots forecast by Monday. Seas will build to 4 to 5 ft, with some 6 ft possible across the 20 to 60 nm offshore GA waters and the nearshore Charleston County waters on Monday and into Tuesday. Small Craft Advisories may be required. Rip Currents, strengthening northeast winds will develop in the wake of a passing backdoor cold front today. The combination of a strengthening longshore current and building breakers may produce rip currents along the SC/GA coast today. A moderate risk will be posted until 8 PM this evening. && .CLIMATE... Record Precipitation: May 10: KCHS: 1.45/1961 KCXM: 1.72/1949 KSAV: 1.29/1989 May 11: KCHS: 1.93/1952 KCXM: 1.57/1899 && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && NEAR TERM...NED SHORT TERM...CPM LONG TERM...CPM AVIATION...CPM/NED MARINE...CPM/NED
Hazardous Weather Outlook National Weather Service Charleston SC 1052 AM EDT Sat May 10 2025 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-111500- 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- 1052 AM EDT Sat May 10 2025 This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. See the Graphical Hazardous Weather Outlook for more information about the following possible hazardous weather: - Rip Current .DAYS TWO THROUGH SEVEN...Sunday through Friday. See the Graphical Hazardous Weather Outlook for more information about the following possible hazardous weather: - Excessive Rainfall && The Graphical Hazardous Weather Outlook can be found at: https://www.weather.gov/erh/ghwo/?wfo=chs
Special Weather Statement
National Weather Service Charleston SC
1052 AM EDT Sat May 10 2025
GAZ118-119-SCZ047-051-101515-
Inland Jasper SC-Inland Chatham GA-Coastal Jasper SC-Coastal
Chatham GA-
1052 AM EDT Sat May 10 2025
...A STRONG THUNDERSTORM WILL IMPACT JASPER AND CHATHAM COUNTIES
UNTIL 1115 AM EDT...
At 1052 AM EDT, Doppler radar was tracking a strong thunderstorm
over Montgomery, moving northeast at 30 mph.
HAZARD...Landspouts and wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible. Gusty winds
could knock down tree limbs and blow around unsecured objects.
Locations impacted include...
Tybee Island, Midtown Savannah, Wilmington Island, Downtown
Savannah, Hutchinson Island, Hunter Army Airfield, Windsor Forest,
Coffee Bluff, Fort Pulaski National Monument and Montgomery.
This includes the following highways...
I-16 between mile markers 165 and 168.
I-516 between mile markers 3 and 8.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Stay tuned to NOAA Weather Radio All Hazards, TV or your local news
source for the latest information from the National Weather Service.
&&
LAT...LON 3191 8122 3191 8123 3219 8108 3208 8091
3208 8090 3203 8083 3180 8106 3185 8114
3186 8114 3186 8115 3187 8116 3189 8116
3190 8117 3190 8118 3189 8120 3190 8122
TIME...MOT...LOC 1452Z 216DEG 25KT 3191 8110
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 TO 55 MPHThe Charleston,SC radar (KCLX), 81 km away, was scanning. The volume nearest the first event began at 14:53 UTC.
1 thunderstorm wind. Local standard time, as filed.
Chatham County Emergency Management reported several tree and large limbs down on Burnside Island.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2025Every state in 2025This day in weather historyWarnings in Georgia, May 2025
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: 1263796.