Hot and humid conditions under high pressure along with an afternoon sea breeze circulation shifting inland led to an environment favorable for strong to severe thunderstorms across Southeast Georgia.
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.
Hot and humid conditions under high pressure along with an afternoon sea breeze circulation shifting inland led to an environment favorable for strong to severe thunderstorms 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 12, 1:34 PM EST, 1 hour 26 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Charleston SC 234 PM EDT Fri Jun 12 2026 .WHAT HAS CHANGED... All Key Messages and sections were updated. && .KEY MESSAGES... - 1) Afternoon heat index values could climb into the 105 to 112 degree range across the I-95/coastal corridor on Saturday. - 2) Daily coverage of showers and thunderstorms expected to increase through the weekend and into next week as a more typical summertime pattern returns to the region. - 3) Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week. && .DISCUSSION... KEY MESSAGE 1: Afternoon heat index values could climb into the 105 to 112 degree range across the I-95/coastal corridor on Saturday. Showers and thunderstorms have developed across the forecast area this afternoon, slow storm motions to the east. Some of these storms have tapped into SBCAPE in excess of 3000 J/kg, to develop 50dBZ cores near 40 kft. Strong to severe thunderstorms are possible this afternoon, for localized damaging wind gusts. KCHS set a new record high of 98, breaking the old record of 97 set in 2016. On Saturday, the day should begin will very warm temperatures in the upper 70s, possibly near 80 along the coast. Much like today, temperatures should warm into the 90s by mid-day, then peak near record values in the upper 90s. See Climate section below for temperature records. These temperatures combined with dewpoints well into the 70s could yield index values in the 108-112 degree range. It is possible that a Heat Advisory will be needed for the coastal counties tomorrow. However, temperatures should exceed the convective temperature in the low 90s around mid-day. Initially, cumulus cloud cover should rapidly develop across the forecast area, then showers and thunderstorms should begin to develop shortly afternoon. Given the hot and humid conditions, it is possible that SBCAPE will build in excess of 3000 J/kg along and ahead of the sea breeze. Thunderstorms should develop along and inland of the sea breeze, then track across the sea breeze towards the coast. 12Z HREF indicates a 70% of rainfall rates of 1"/3hr along the coast, with some pockets of 10% 3"/3hr. It is possible that a SVR warning or Flood Advisory will be needed on Sat. Rainfall could become excessive if heavy downpours overlap with the early evening high tide. KEY MESSAGE 2: Daily coverage of showers and thunderstorms expected to increase through the weekend and into next week as a more typical summertime pattern returns to the region. Through the weekend and into next week, the pattern across southeast GA and southeast SC will gradually shift toward a typical summertime pattern supportive of showers and thunderstorms each day. Aloft, the ridging that has been in place for the last several days will break down and be replaced by a more zonal flow through Sunday. Then as we head into the early and middle part of next week, large and broad troughing is expected to encompass the eastern half of the CONUS. At the surface, a weak front/trough is expected to drift into the vicinity Saturday and Sunday, followed by a more notable front for the early to middle part of next week. Overall thinking is that Saturday and Sunday will result in a modest increase in convective coverage. A more significant increase in coverage is likely in the early to middle part of next week due to the combination of the presence of the trough aloft and the aforementioned front. For Saturday and Sunday, mid-level flow should be such that it only support storm motions on the order of 10-15 knots. Precipitable water values will be in the 1.8-2.0" range as well. So locally heavy rainfall is possible due to slow storm motion, but coverage should be limited to the point of keeping the threat localized. As we move into next week, mid-level flow will increase into the 20-30 knot range and the threat for heavy rainfall will come primarily from training storms and the presence of precipitable water values in excess of 2 inches. Overall, the severe risk for each day is relatively low due to the lack of organization. Also, the freezing level (14.5-15.0 kft) and -20C (25.0+ kft) height will be quite high each day which means it will take a very tall storm to produce a damaging wind gust threat. The best chance for a strong to severe storm will come where boundary interactions occur and boost updraft strength. This could change a bit into next week as the mid-level flow improves. KEY MESSAGE 3: Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week. Breezy south-southeasterly winds post sea breeze each day along with the upcoming lunar Perigee (June 14th) and New Moon (June 15th) should result in elevated tidal departures above 1/2 ft this weekend into early next week, setting the stage for minor coastal flooding along the Charleston and Colleton County coasts during evening high tide cycles. The latest TWL forecast calls for 7.1 - 7.3 ft MLLW in the Charleston Harbor Saturday evening, and similar water levels are possible during evening high tides into early next week as astronomical influences peak and breezy onshore winds persist. Coastal Flood Advisories could eventually be needed. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... Prior to the 18Z TAFs, KCLX detected showers in the vicinity of each terminal. The TAFs will feature a TEMPO during the heat of the day to indicate the potential of a moderate shower. Overnight, conditions should remain VFR with light SW winds. The sea breeze is expected to trigger showers and thunderstorms by early afternoon. KJZI and KSAV TAFs will highlight VCSH by 17Z Sat. Extended Aviation Outlook: VFR conditions should prevail at CHS/JZI/SAV terminals through the weekend, although TEMPO flight restrictions are possible with afternoon showers/thunderstorms throughout the weekend. Chances for flight restrictions increase early next week with shower/thunderstorm coverage expanding locally ahead of an arriving cold front. && .MARINE... Tonight through Saturday, the pressure pattern will support southwest winds between 15 to 20 kts. Wave heights are forecast to remain between 2 to 3 ft. Sunday through Wednesday: The gradient across the local waters will get enhanced a bit as a surface trough takes hold inland. This should drive southwest flow into the 15-20 knot range across all the waters, with potential for 25 knot gusts across the SC waters and the outer GA waters. Similar wind speeds will be possible each day into the middle of the week, primarily in the afternoon and evening time period. Conditions could become marginally supportive of Small Craft Advisories at times for portions of the waters. && .CLIMATE... Record High Temperatures: June 12: KCHS: 97/2016 *New record of 98 degrees set. KCXM: 97/1998 KSAV: 100/1977 June 13: KCHS: 99/2011 KCXM: 96/1998 June 14: KCHS: 99/2010 KCXM: 97/1981 Record High Minimum Temperatures: June 11: KCHS: 76/2020 KCXM: 79/2020 KSAV: 76/2010 June 12: KCHS: 77/1986 KCXM: 80/1998 KSAV: 78/1899 June 13: KCHS: 80/2013 KCXM: 82/1998 KSAV: 80/1880 June 14: KCHS: 79/2010 KCXM: 81/2010 && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...None. MARINE...None. && BSH/NED
Preliminary Local Storm Report
National Weather Service Charleston SC
310 PM EDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM Tstm Wnd Gst 5 SW Adams Run 32.66N 80.40W
06/12/2026 M41 mph Charleston SC Other Federal
The Ace Basin RAWS site measured a 41 mph wind gust.
&&
Event Number CHS2600423
BSHPreliminary Local Storm Report
National Weather Service Charleston SC
341 PM EDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0335 PM Hail 2 ESE Jedburg 33.04N 80.21W
06/12/2026 M0.50 inch Dorchester SC Emergency Mngr
Dorchester County Emergency Management reported pea
sized hail or a little larger at the Emergency
Operations Center.
&&
Event Number CHS2600424
BSHSpecial Weather Statement
National Weather Service Charleston SC
341 PM EDT Fri Jun 12 2026
SCZ044-045-150-152-122015-
Tidal Berkeley SC-Dorchester SC-Inland Berkeley SC-Charleston SC-
341 PM EDT Fri Jun 12 2026
...A STRONG THUNDERSTORM WILL IMPACT BERKELEY AND DORCHESTER COUNTIES
UNTIL 415 PM EDT...
At 341 PM EDT, Doppler radar was tracking a strong thunderstorm over
Ladson, moving south at 15 mph.
HAZARD...Wind gusts of 50 to 55 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
North Charleston, Summerville, Goose Creek, Hanahan, Ladson,
I-26/I-526 Interchange, Naval Weapons Station Charleston, West
Ashley, Downtown Charleston and College Park.
This includes the following highways...
I-26 between mile markers 193 and 219. I-526 between mile markers 14
and 22.
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 3309 8025 3311 8024 3309 7997 3282 7995
3286 8033
TIME...MOT...LOC 1941Z 17DEG 13KT 3297 8011
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 TO 55 MPH
ACDPreliminary Local Storm Report
National Weather Service Charleston SC
342 PM EDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0337 PM Hail College Park 33.02N 80.10W
06/12/2026 E0.25 inch Berkeley SC Trained Spotter
Trained spotter reported pea sized hail.
&&
Event Number CHS2600425
NEDSpecial Weather Statement
National Weather Service Charleston SC
347 PM EDT Fri Jun 12 2026
SCZ045-150-122015-
Inland Berkeley SC-Charleston SC-
347 PM EDT Fri Jun 12 2026
...A STRONG THUNDERSTORM WILL IMPACT BERKELEY COUNTY UNTIL 415 PM
EDT...
At 347 PM EDT, Doppler radar was tracking a strong thunderstorm 5
miles north of Awendaw, moving south at 10 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...
Awendaw, Halfway Creek and Buck Hall.
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.
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3297 7973 3314 7972 3315 7956 3300 7950
3300 7953 3299 7955
TIME...MOT...LOC 1946Z 349DEG 6KT 3306 7964
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 TO 55 MPH
ACDPreliminary Local Storm Report
National Weather Service Charleston SC
352 PM EDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0338 PM Hail 1 SE Sangaree 33.02N 80.12W
06/12/2026 E0.88 inch Berkeley SC Trained Spotter
Hail up to the size of a nickel was observed along
Royle Road.
&&
Event Number CHS2600426
NEDThe Charleston,SC radar (KCLX), 114 km away, was scanning. The volume nearest the first event began at 20:01 UTC.
3 thunderstorm wind, 2 lightning. Local standard time, as filed.
The Long County 911 Call Center reported a power pole caught fire due to a lightning strike near the intersection of Arnall Drive near Sphar Drive.
The Bulloch County 911 Call Center reported a tree down near the intersection of Highway 67 and Barn Road.
The public reported a tree down near the intersection of Rolling Hills Road and Walter McGlammery Road.
The public reported downed trees along 5 Chop Road.
The Screven County 911 Call Center reported a lightning strike to a tree on the 400 Block of Gilgal Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Georgia in 2026Every state in 2026This day in weather historyWarnings in Georgia, June 2026
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: 1356611, 1356613, 1356614, 1356615, 1356612.