A mid-upper level disturbance traversing the Southeast in advance of a longwave trough encountered a moderately unstable environment, leading to severe thunderstorms capable of producing damaging wind gusts across Southeast Georgia.
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The episode as NWS CHS wrote it up.
A mid-upper level disturbance traversing the Southeast in advance of a longwave trough encountered a moderately unstable environment, leading to severe thunderstorms capable of producing damaging wind gusts across Southeast Georgia.
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 Jun 10, 6:30 AM EST, 51 minutes earlier.
Area Forecast Discussion National Weather Service Charleston SC 730 AM EDT Tue Jun 10 2025 .SYNOPSIS... A cold front will approach the region and stall mid-week. High pressure will prevail late week into the weekend. && .NEAR TERM /THROUGH TONIGHT/... This morning: We are watching an area of convection tracking to the northeast out of south GA that will soon enter into Tattnall County. These storms are sub-severe, but are capable of producing 30-35 mph wind gusts. This convection will steadily move to the northeast through the morning, but should eventually weaken and dissipate. But, it remains unclear how this will impact afternoon and evening convective chances as it should have a stabilizing effect. We will continue to monitor over the next few hours and make forecast adjustments as needed. Today: Aloft, the forecast area will remain on the east side of the mid/upper level trough axis extending southward out of the Great Lakes region. Model guidance depicts an embedded vort max within the southwest flow that will move along the GA/SC coast and could help to serve as a driver of convection during the day. At the surface, no change as the forecast area sits between Atlantic high pressure and an inland front with a warm, moist, and humid summertime airmass. Current thinking is that the day will start will little to now convection. Then we will see development start in the mid to late morning hours along and south of I-16 and then steadily ride up the coast through the afternoon, associated with the aforementioned shortwave aloft. Therefore, we will highlight the best chances along the coastal corridor where the best forcing and instability will reside. Overall, the near storm environment looks a bit less conducive to strong to severe convection today. MLCAPE values are progged to be a bit less (~1,500 J/kg) as well as DCAPE values (600- 800 J/kg). However, there is still good mid-level flow noted in model soundings, on the order of 30-40 knots. Therefore, there will be the threat of isolated severe thunderstorms capable of producing damaging wind gusts. This is in line with the SPC Day 1 Marginal Risk area that encompasses the entire forecast area. Expect some breezy conditions outside of any storms, with frequent southwesterly gusts into the 15-20 mph range. Temperatures are expected to generally top out in the upper 80s. This evening and tonight: Afternoon convection should diminish starting in the early evening, though some hi-res model solutions suggest there will be some upstream convection that could make a run for our western zones late in the evening. Otherwise, we expect nothing more than isolated coverage through the night. Lows are expected to fall into the low 70s. && .SHORT TERM /WEDNESDAY THROUGH FRIDAY/... Surface high pressure will reside offshore through late week, while a weak front meanders over the region before largely washing out. Aloft, a trough over the East Coast will continue to lift, allowing ridging to build from the south. Expect daily shower and thunderstorm chances with highest coverage in the afternoon when instability is maximized. No particularly stand- out day for severe weather, but a stronger storm or two will be possible each day, especially where boundary interactions occur. Highs will peak in the upper 80s to around 90. Lows on average will be in the 70-75F range, with some spots dipping into the upper 60s inland. && .LONG TERM /FRIDAY NIGHT THROUGH MONDAY/... Mid level ridging will largely persist over the Southeast into the weekend and early next week, although a couple weak disturbances could pass through the region. Surface high pressure will reside offshore while a front possibly approaches later in the period. Forecast is pretty much on repeat with showers and thunderstorms possible each day, with coverage peaking during the daytime hours. Heat indices start creeping back up, reaching 100-105 in many spots. && .AVIATION /11Z TUESDAY THROUGH SATURDAY/... KCHS and KJZI: VFR conditions are in place and should prevail through the TAF period. The first concern is for an area of showers and storms that are starting to move into southeast GA and should be on track to potentially reach the terminals around 15-16z. However, it is unclear if these showers and storms will hold together all the through the late morning. We have introduced prevailing showers starting at 16z. These showers and storms could have a stabilizing effect that will have implications for thunderstorm chances later this afternoon. We still think the atmosphere should be able to recover and have maintained VCTS starting at 20z, but confidence is low. If the terminals are directly impacted by a shower or thunderstorms, brief MVFR or IFR conditions will be possible. KSAV: An area of IFR ceilings has settled in and we have initialized the TAF with TEMPO IFR from 12-14z. The next issue concerns an area of showers and storms approaching from the southwest. These showers and storms could reach the terminal around 13-14z and we have added a TEMPO from 14-16z for thunder and MVFR conditions. These showers and storms could have a stabilizing effect that will have implications for thunderstorm chances later this afternoon. We still think the atmosphere should be able to recover and have maintained VCTS starting at 18z, but confidence is low. If the terminals are directly impacted by a shower or thunderstorms, brief MVFR or IFR conditions will be possible. Extended Aviation Forecast: Diurnally driven showers and thunderstorms could bring temporary flight restrictions through the week, mainly in the afternoon hours. && .MARINE... Today and tonight: Similar to the last few days, we expect elevated southwesterly flow across the local waters today and through the evening. However, speeds look to be a little weaker with not quite as much gustiness. The forecast advertises winds peaking at 15-20 knots in the Charleston County waters and Charleston Harbor, likely just below Small Craft Advisory thresholds. Seas should generally average 2-4 feet through the period. Also, it is worth noting that thunderstorms are expected along the coast and could move out into the coastal waters at times, producing strong wind gusts. Wednesday through Sunday: Marine conditions are expected to stay below Small Craft Advisory criteria through the period. Southerly flow will persist with speeds 15 knots or less. Seas will average 2- 3 feet. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && NEAR TERM...BSH SHORT TERM...ETM LONG TERM...ETM AVIATION...BSH/ETM MARINE...BSH/ETM
Hazardous Weather Outlook National Weather Service Charleston SC 721 AM EDT Tue Jun 10 2025 GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-111130- 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- 721 AM EDT Tue Jun 10 2025 This Hazardous Weather Outlook is for southeast Georgia and southeast South Carolina. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The probability for widespread hazardous weather is low. && The Graphical Hazardous Weather Outlook can be found at: https://www.weather.gov/erh/ghwo/?wfo=chs
Preliminary Local Storm Report
National Weather Service Charleston SC
744 AM EDT Tue Jun 10 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0742 AM Tstm Wnd Gst Reidsville Airport 32.06N 82.15W
06/10/2025 M46 mph Tattnall GA AWOS
The AWOS at the Reidsville Airport (KRVJ) measured a 46
mph wind gust.
&&
Event Number CHS2500448
BSHSpecial Weather Statement
National Weather Service Charleston SC
751 AM EDT Tue Jun 10 2025
GAZ087-088-099-100-114>116-137-138-101230-
Evans GA-Inland Liberty GA-Screven GA-Long GA-Jenkins GA-Tattnall
GA-Inland Bryan GA-Candler GA-Bulloch GA-
751 AM EDT Tue Jun 10 2025
...A LINE OF STRONG THUNDERSTORMS WILL IMPACT LIBERTY...BRYAN...
TATTNALL...SCREVEN...JENKINS...CANDLER...EVANS...BULLOCH AND LONG
COUNTIES UNTIL 830 AM EDT...
At 751 AM EDT, Doppler radar was tracking a line of strong
thunderstorms extending from over Aline to 7 miles southwest of
Donald, moving northeast at 40 mph.
HAZARD...Wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Hinesville, Statesboro, Reidsville, Metter, Glennville, Claxton,
Pembroke, Ludowici, Fort Stewart and McIntosh.
This includes I-16 between mile markers 96 and 142.
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.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional
information and possible warnings from the National Weather Service.
&&
LAT...LON 3235 8225 3243 8219 3252 8215 3256 8208
3254 8203 3261 8200 3265 8207 3281 8188
3239 8155 3187 8136 3167 8184 3175 8191
3176 8194 3179 8195 3178 8198 3182 8202
3184 8207 3204 8213 3212 8220 3218 8218
TIME...MOT...LOC 1151Z 239DEG 35KT 3233 8216 3213 8200 3173 8190
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 TO 55 MPH
BSHThe Charleston,SC radar (KCLX), 85 km away, was scanning. The volume nearest the first event began at 12:21 UTC.
4 thunderstorm wind, 1 hail. Local standard time, as filed.
The Bulloch County 911 Call Center reported a tree down on Old Portal Road.
The Bulloch County 911 Call Center reported a tree down on Cypress Lake Road near the intersection with Country Club Road.
The Bulloch County 911 Call Center reported a tree down on Arcola Road near the intersection with Highway 26.
An Effingham County emergency manager reported penny size hail in Springfield.
A Chatham County emergency manager reported power lines down on Walthour Road.
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, June 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: 1279728, 1279729, 1279730, 1279902, 1279731.