Alert archive / South Carolina / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 113, NWS Columbia, SC
NWS Columbia, SC issued this severe thunderstorm warning at Aug 11, 2026, 7:17 PM EDT for Lancaster County, South Carolina. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 11, 2026, 7:17 PM EDT (23:17 UTC)
- Expired
- Aug 11, 2026, 7:45 PM EDT
- In force
- 28 min
- Issued by
- NWS Columbia, SC
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Lancaster County, SC
The radar
The Columbia radar (KCAE), 112 km from the middle of the area, began a volume at 23:19 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.3 hours before the alert went out and 154 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1951 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 941 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -96 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
234
WUUS52 KCAE 112317
SVRCAE
SCC057-112345-
/O.NEW.KCAE.SV.W.0113.260811T2317Z-260811T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
717 PM EDT Tue Aug 11 2026
The National Weather Service in Columbia has issued a
* Severe Thunderstorm Warning for...
Northwestern Lancaster County in central South Carolina...
* Until 745 PM EDT.
* At 717 PM EDT, a severe thunderstorm was located over Indian Land,
and is nearly stationary.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and powerlines.
* Locations impacted include...
Indian Land, Andrew Jackson State Park, Van Wyck, Carolina Commons
Shopping Center, and Community of Almond Glen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3493 8078 3483 8080 3483 8089 3484 8087
3486 8088 3490 8088 3493 8086 3496 8087
3501 8091 3503 8090 3505 8091 3507 8090
TIME...MOT...LOC 2317Z 009DEG 3KT 3497 8086
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BC1 follow-up statement
609
WWUS52 KCAE 112345
SVSCAE
Severe Weather Statement
National Weather Service Columbia SC
745 PM EDT Tue Aug 11 2026
SCC057-112355-
/O.EXP.KCAE.SV.W.0113.000000T0000Z-260811T2345Z/
Lancaster SC-
745 PM EDT Tue Aug 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LANCASTER COUNTY
HAS EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.
LAT...LON 3493 8078 3483 8080 3483 8089 3484 8087
3486 8088 3490 8088 3493 8086 3496 8087
3501 8091 3503 8090 3505 8091 3507 8090
TIME...MOT...LOC 2345Z 009DEG 3KT 3495 8086
$$
BCWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Columbia, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 11, 2:05 PM EDT, 5 hours 12 minutes earlier. Its key messages:
- 1. Storms with strong downburst winds possible through Thu
- 2. Above normal temperatures likely, Heat Advisory possible, through early next week.
Area forecast discussion, Aug 11, 2:05 PM EDT, 5 hours 12 minutes before
Area Forecast Discussion National Weather Service Columbia SC 205 PM EDT Tue Aug 11 2026 .WHAT HAS CHANGED... Diurnal shower and thunderstorm coverage appears isolated over the next few days. However there is a chance for more organized convection and severe weather to enter the northern FA late today and Wednesday. && .KEY MESSAGES... - 1. Storms with strong downburst winds possible through Thu - 2. Above normal temperatures likely, Heat Advisory possible, through early next week. && .DISCUSSION... - 1. Storms with strong downburst winds possible through Thu Upper level ridging to our west will allow several disturbances to dig into the Carolinas today through early Thursday. In addition to typical diurnally driven storms, there is some potential for organized convection from decaying MCSs upstream. Mid-level dry air will allow for DCAPE values in excess of 1000 J/kg today and Wednesday so any diurnally driven pulse- convection will pose a threat of isolated downburst winds. In terms of a more widespread wind threat, MCSs are expected to develop in the Midwest and dig into the Mid Atlantic States by the late evening time frame. In this setup, we typically see a decaying MCSs digging into the northern FA well after peak heating. However, there are times when convection persists longer than models anticipate leading to a cold pool driven line of storms causing scattered power outages and wind damage. These lines of storms will be possible this evening and again Wednesday morning or mid-day. - 2. Above normal temperatures likely, Heat Advisory possible, through early next week. Northwest, downslope flow and rising heights favor above normal temperatures through much of the 7 day forecast period. If convection does not hamper heating, we will likely have highs in the mid 90s to upper 90s. The NBM may be too warm given its verification through the spring/summer season however highs of around 100 degrees can't be ruled out late this week and early next week as ridging builds overhead. Heat Index values should range from 100 to 105 through Friday with values in the 105 to 110 range possible Thursday and Friday. That said with convection possible both days confidence in reaching Heat Advisory is low at this time. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... Relatively high confidence in VFR conditions through much of the TAF forecast period. Showers and thunderstorms have begun to develop in portions of GA at the time of this update. Confidence has increased that this activity could affect AGS, DNL, and/or AIK this afternoon. Expect gusty and erratic winds and typical restrictions should a storm affect these terminals. The probability of CAE, CUB, and OGB being affected by showers and storms this afternoon and evening remains low at this time. There is some guidance suggesting additional activity overnight, but confidence is too low to include in the TAFs at this time. Outside of shower and thunderstorm activity, generally west winds 5 to 10 kts can be expected this afternoon and after about 15z tomorrow, with lighter winds overnight. Additionally, VFR conditions are also anticipated through the TAF period. EXTENDED AVIATION OUTLOOK...A hot and drier weather pattern develops through the week. Convective coverage will likely be low and restrictions likely minimal as highs push into the upper 90s. && .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && DISCUSSION...CJR AVIATION...29
In the hours before
Local storm report, Aug 11, 1:34 PM EDT, 5 hours 43 minutes before
Preliminary Local Storm Report
National Weather Service Columbia SC
134 PM EDT Tue Aug 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0140 PM Tstm Wnd Dmg 4 NNW Grovetown 33.50N 82.23W
08/10/2026 Columbia GA Trained Spotter
Trained spotter shared image on social media
of tree down on powerline. Time estimated by
radar.
&&
BCSpecial weather statement, Aug 11, 3:07 PM EDT, 4 hours 10 minutes before
Special Weather Statement
National Weather Service Columbia SC
307 PM EDT Tue Aug 11 2026
SCZ030-035-111930-
Barnwell SC-Aiken SC-
307 PM EDT Tue Aug 11 2026
...A strong thunderstorm will impact portions of southwestern
Barnwell and south central Aiken Counties through 330 PM EDT...
At 307 PM EDT, Doppler radar was tracking a strong thunderstorm over
Savannah River Site, moving southeast at 15 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Savannah River Site, Snelling, Savannah River Site H Canyon, and
Savannah River Site K Complex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3313 8173 3317 8177 3320 8176 3321 8178
3321 8179 3333 8170 3323 8139 3314 8146
3316 8154 3309 8162 3309 8165
TIME...MOT...LOC 1907Z 301DEG 13KT 3322 8169
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
CJRSpecial weather statement, Aug 11, 3:41 PM EDT, 3 hours 36 minutes before
Special Weather Statement
National Weather Service Columbia SC
341 PM EDT Tue Aug 11 2026
GAZ065-077-SCZ030-035-112030-
Burke GA-Richmond GA-Barnwell SC-Aiken SC-
341 PM EDT Tue Aug 11 2026
...A strong thunderstorm will impact portions of northeastern Burke,
southeastern Richmond, southwestern Barnwell and southwestern Aiken
Counties through 430 PM EDT...
At 340 PM EDT, Doppler radar was tracking a strong thunderstorm near
Jackson, or 12 miles southeast of Augusta, moving east at 25 mph.
HAZARD...Wind gusts 40 to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Barnwell, Savannah River Site, Plant Vogtle, Jackson, McBean,
Snelling, Audubon's Silver Bluff Sanctuary, Savannah River Site Badge
Office, Savannah River Site H Canyon, Bennock Mill, Savannah River
Site K Complex, Shell Bluff Landing, and Barnwell County Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3326 8201 3339 8186 3327 8133 3313 8144
3316 8154 3310 8162 3307 8159 3306 8156
3304 8156 3305 8154 3302 8158
TIME...MOT...LOC 1940Z 290DEG 21KT 3332 8186
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
HCSpecial weather statement, Aug 11, 5:00 PM EDT, 2 hours 17 minutes before
Special Weather Statement
National Weather Service Columbia SC
500 PM EDT Tue Aug 11 2026
GAZ065-077-SCZ030-035-112145-
Burke GA-Richmond GA-Barnwell SC-Aiken SC-
500 PM EDT Tue Aug 11 2026
...A strong thunderstorm will impact portions of northeastern Burke,
southeastern Richmond, southwestern Barnwell and southwestern Aiken
Counties through 545 PM EDT...
At 500 PM EDT, Doppler radar was tracking a strong thunderstorm near
Savannah River Site, moving southeast at 10 mph.
HAZARD...Wind gusts up to 50 mph and half inch 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...
Savannah River Site, Plant Vogtle, Jackson, Snelling, Shell Bluff
Landing, Audubon's Silver Bluff Sanctuary, Savannah River Site Badge
Office, Savannah River Site H Canyon, Bennock Mill, and Savannah
River Site K Complex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3324 8199 3340 8181 3329 8140 3306 8166
TIME...MOT...LOC 2100Z 300DEG 10KT 3324 8177
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
BCSpecial weather statement, Aug 11, 7:02 PM EDT, 15 minutes before
Special Weather Statement
National Weather Service Columbia SC
702 PM EDT Tue Aug 11 2026
SCZ115-116-112345-
Northern Lancaster SC-Southern Lancaster SC-
702 PM EDT Tue Aug 11 2026
...A strong thunderstorm will impact portions of northwestern
Lancaster County through 745 PM EDT...
At 701 PM EDT, Doppler radar was tracking a strong thunderstorm over
Central Charlotte, or near Uptown Charlotte, moving south at 25 mph.
HAZARD...Wind gusts up to 40 to 50 mph and pea 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...
Indian Land, Waxhaw, Andrew Jackson State Park, Van Wyck, Carolina
Commons Shopping Center, and Community of Almond Glen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3493 8078 3483 8080 3483 8089 3484 8087
3486 8088 3490 8088 3493 8086 3496 8087
3501 8091 3503 8090 3505 8091 3507 8090
TIME...MOT...LOC 2301Z 340DEG 22KT 3519 8093
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
BCThe office that day
Everything else NWS Columbia, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 3:07 PM EDT | Special Weather Statement | CAE | Barnwell | 23 min |
| Aug 11, 3:41 PM EDT | Special Weather Statement | CAE | Barnwell | 49 min |
| Aug 11, 4:08 PM EDT | Severe Thunderstorm Warning | CAE | Aiken, Barnwell | 52 min |
| Aug 11, 5:00 PM EDT | Special Weather Statement | CAE | Barnwell | 45 min |
| Aug 11, 5:38 PM EDT | Areal Flood Advisory | CAE | Aiken, Barnwell | 2 hr |
| Aug 11, 7:43 PM EDT | Special Weather Statement | CAE | Chesterfield | 47 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.