A pre-frontal trough produced strong thunderstorms.
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 ILM wrote it up.
A pre-frontal trough produced strong thunderstorms.
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 Wilmington, NC wrote its last area forecast discussion before the first event at Jun 25, 12:15 PM EST, 2 hours 49 minutes earlier.
Area Forecast Discussion National Weather Service Wilmington NC Issued by National Weather Service Charleston SC 115 PM EDT Mon Jun 25 2018 .SYNOPSIS... Hot and humid conditions will continue today. Showers and thunderstorms will become more numerous this afternoon into Tuesday ahead of a cold front, which will bring some relief from the heat for midweek. Temperatures will rebound to above normal again late in the week, with the potential for another cold front to approach the area on Friday. && .NEAR TERM /THROUGH TONIGHT/... 1:15 PM: A Severe Thunderstorm Watch has been issued for the entire area until 10 PM tonight. We're in the process of updating the forecast with the latest CAM guidance to account for the expected trends into this evening. As of 10:30 AM...A few minor changes were made to the forecast. Temperatures were running a few degrees lower than what the hourly forecast was showing, so we took the current observations and blended them with the temperatures for this afternoon, which were left unchanged. The temperatures are probably being held down a bit by a thick layer of clouds over the coastal counties, stretching offshore. We also made some minor adjustments to the sky grids, mainly taking the current observations and blending it into this afternoon with the expected development. As for POPs, radar is relatively dry now, so we also lowered them for the next hour or two and then have POPs increasing along the coast associated with the sea breeze, then increasing further as convection lights up this afternoon. A cold front will drop down from the north this afternoon and tonight. The changing winds will initially focus convection along the sea breeze closer to the coast and then along the front as it pushes south. Storms should begin to develop as we reach convective temps early this aftn. Strong sfc heating, steep lapse rates, CAPE up near 4000 J/kg, precip water values up over 2 inches will all help to support decent convective development which will be more isolated in nature initially, but will increase in coverage heading into this evening and tonight as a shortwave tracks across the Carolinas. This will enhance convection with severe potential along with possibility of excessive rainfall. SPC has our entire CWA no in a slight risk. The main threat is damaging winds, but some small hail is also possible. The winds will be quite variable and fairly weak as boundary drops slowly south over the area. Low pressure develops west of the area as shortwave moves east and then tracks through mainly after midnight. The variable and lighter low level winds initially should make for some interesting boundary interactions with the NW steering flow initially stronger pushing the storms toward the SE and the coast. As the shortwave reaches the Coastal Carolinas, the winds aloft will back to the W-SW maintaining a more E-NE storm direction. Sounding data shows winds increasing out of the SW up to 45 kts between 06z and 09z. This should transition to a more linear development and greater potential for wind damage overnight, whereas initially the mid level flow weakens late aftn into the eve leaving slower moving storms and potential for flooding. WPC has local area highlighted for slight risk of excessive rainfall and flash flooding. Have not included any enhanced wording in forecast yet, but may want to consider as confidence grows with event evolving. Slightly lower overnight dewpoints and temps will will give a less of a jumpstart for high temps today. Overall expect another hot and humid day with temps reaching between 90 and 95 most places. The warmest will be over Williamsburg and Georgetown counties as they will be the last area the front drops into, with heat index values just making it to 105, but possibly only for an hour before aftn convection lowers them a bit. Overnight lows will be a few degrees less behind cold front with most places between 70 and 75. The 850 temps will drop a couple of degrees through the period. && .SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/... As of 3 AM Monday...Cold front in the area at the start of the period will gradually sink south during Tue before stalling and slowly dissipating on Wed. Series of weak shortwaves will move through the flat mid-level flow, along the boundary. These impulses will have plenty of moisture tap into, precipitable water is forecast to approach 2.40 inches on Tue. Abundant cloud cover will limit heating and thus CAPE, but it won't take much given the surface boundary and the mid-level support. The last shortwave later Tue could be particularly potent with some of the guidance showing a well defined surface low with the shortwave. All of this points to an active day convection wise with good agreement on precip chances in the likely category. If the final shortwave is as strong as depicted by the NAM/ECMWF, widespread heavy rain and localized flooding could be an issue Tue afternoon. Cloud cover will help keep highs in the low to mid 80s. Debris cloud and moisture lingering in the region Tue night will keep lows above climo. Precip chances will be decreasing overnight as slightly drier air aloft and subsidence in the wake of the final wave spreads over the region. Front lingers in or just south of the area Wed becoming diffuse as heating pushes temps into the upper 80s and sea breeze becomes better defined. Significant differences between the GFS and NAM/ECMWF solutions for Wed. This is down to the handling of the Tue afternoon/evening shortwave. GFS solution would produce isolated to scattered convection with precipitable water around 1.9 inches and MLCAPE 2500-3000 J/kg. NAM/ECMWF solution has stronger post wave subsidence in the area, as surface low off the NC/SC coast starts to become more defined. Subsidence coupled with slightly drier air aloft leads to less convection. Will maintain inherited solution which was middle of the road between the 2 solutions, slight chance, and hope for better agreement in coming model runs. Lingering low level moisture and mixing will keeps lows above climo Wed night. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... As of 3 AM Monday...The GFS has a 500 mb shortwave moving eastward and off the Carolina coast on Thursday. The ECMWF is more bullish with this shortwave, however it off to the northeast ahead of the 500 mb ridge which builds eastward over the eastern U.S. late week into the weekend. Either scenario would result in little direct impacts on our tangible weather. The approach of a late-week cold front will maintain the potential for unsettled weather into the weekend, as it will likely stall somewhere in the area. Overall, it will be difficult to rule out some degree of shower and thunderstorm development in the CWA during any period of the extended forecast. && .AVIATION /17Z MONDAY THROUGH FRIDAY/... As of 12Z...A lull in convection is expected into the early to mid afternoon hours at which time sea breeze may become a little more active. Better chances late today and tonight as potent shortwave and a cold front move into the area. Strong convection with possible IFR in heavier rain and very gusty winds will accompany these features tonight. Mainly westerly winds today, except along the coast where sea breeze will have minimal success pushing inland. Winds are likely to shift to northwest or even north late in the period as large area of convection moves offshore. Extended Outlook...Mostly VFR. Mainly afternoon showers and thunderstorms each day with short duration flight category restrictions possible, except for Tuesday as cold front lingers in the area, producing increased chc of shwrs/tstms. && .MARINE... NEAR TERM /THROUGH TONIGHT/... As of 10:30 AM...A cold front will drop down from the north today into tonight. Winds initially from the SW will veer to the west as cold front approaches and will then shift around to the N later today and should be more easterly by early Tues, but remaining on the weaker side. Front will not make it through the local waters before stalling and beginning to become more diffuse heading into Tues. Overall expect winds 10 to 15 kts with winds slightly stronger in SW flow to the south of the front. Seas up near 3 to 4 ft at the moment will fall a bit through the day down to 2 to 3 ft most waters. SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... As of 3 AM Monday...Cold front will be stalled in the area on Tue before washing out on Wed. Presence of the boundary early in the period will keep winds light and variable. Later Tue night winds gain a bit of a northerly component but speeds remain under 10 kt. Front washing out Wed allows the sea breeze and possibly a weak low off the NC/SC coast to play more of a role in wind direction. East to southeast flow returns Wed with winds becoming more southerly Wed night. Gradient is on the weak side and speeds will remain 10 kt or less. Seas 2 to 3 ft on Tue drop to around 2 ft Tue night into Wed. Development of east- southeast flow Wed will build seas back to 2 to 3 ft later Wed and Wed night. LONG TERM /THURSDAY THROUGH FRIDAY/... As of 3 AM Monday...Weak low pressure along a stalled front will lift off to the northeast with minimal direct impacts expected across area waters at this time. Models have been having trouble coming into agreement on this feature, so overall confidence associated with it remains low. Another frontal boundary will drop south into the Carolinas on Friday, but at this time it appears it will stall inland. Potential for scattered showers and thunderstorms will increase Thursday and Friday. && .ILM WATCHES/WARNINGS/ADVISORIES... SC...None. NC...None. MARINE...None. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION... MARINE...
Hazardous Weather Outlook National Weather Service Wilmington NC Issued by National Weather Service Charleston SC 113 PM EDT Mon Jun 25 2018 NCZ087-096-099-105>110-SCZ017-023-024-032-033-039-054>056-058-059- 261715- Robeson-Bladen-Columbus-Inland Pender-Coastal Pender- Inland New Hanover-Coastal New Hanover-Inland Brunswick- Coastal Brunswick-Marlboro-Darlington-Dillon-Florence-Marion- Williamsburg-Coastal Horry-Inland Georgetown-Coastal Georgetown- Central Horry-Northern Horry- 113 PM EDT Mon Jun 25 2018 ...SEVERE THUNDERSTORM WATCH 218 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast North Carolina and northeast South Carolina. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is marginal risk for excessive rainfall and localized flash flooding potential on Tuesday. Heat index values could reach 100 to 105 degrees Thursday through Saturday. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. AMZ250-252-254-256-261715- Coastal waters from Surf City to Cape Fear NC out 20 nm- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 nm- Coastal waters from Murrells Inlet to South Santee River SC out 20 nm- 113 PM EDT Mon Jun 25 2018 ...SEVERE THUNDERSTORM WATCH 218 IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for the adjacent Coastal Waters. .DAY ONE...This Afternoon and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
Special Weather Statement
National Weather Service Wilmington NC
Issued by National Weather Service Charleston SC
341 PM EDT MON JUN 25 2018
NCZ087-252015-
Robeson-
341 PM EDT MON JUN 25 2018
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF NORTHEASTERN ROBESON
COUNTY...
At 340 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Rex, or 7 miles east of Raeford, moving
southeast at 10 mph.
HAZARD...strong winds 45 to 55 mph and up to penny sized hail.
IMPACT...Expect minor damage to tree limbs and blowing around of
light, unsecured objects. Minor hail damage to plants,
trees and crops is possible. Damage to windshields is
unlikely.
Some locations in the path of this storm include...
St. Pauls, Rex and Shannon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive cloud to ground lightning is occurring. Avoid using metal
equipment and keep distance from objects such as irrigation systems,
poles, fences and trees.
&&
LAT...LON 3493 7899 3492 7896 3488 7892 3486 7893
3485 7892 3475 7898 3484 7919 3495 7904
TIME...MOT...LOC 1940Z 296DEG 10KT 3495 7909
JRLSpecial Weather Statement
National Weather Service Wilmington NC
Issued by National Weather Service Charleston SC
357 PM EDT MON JUN 25 2018
SCZ017-023-252030-
Marlboro-Darlington-
357 PM EDT MON JUN 25 2018
...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF DARLINGTON AND
SOUTHWESTERN MARLBORO COUNTIES...
At 356 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Auburn, or near Darlington, moving southeast
at 10 mph.
HAZARD...strong winds 45 to 55 mph and excessive cloud to ground
lightning.
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...
Hartsville, Darlington, North Hartsville, Dovesville, Mechanicsville,
Mont Clare, Darlington Raceway and Auburn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A severe thunderstorm watch is in effect. Thunderstorms can produce
large hail, damaging winds and isolated tornadoes suddenly, sometimes
with little or no warning. Be alert for rapidly changing weather
conditions and be ready to act quickly if severe weather is observed
or a warning is issued.
Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.
&&
LAT...LON 3449 8005 3449 8002 3450 7998 3449 7996
3449 7988 3454 7983 3456 7982 3452 7974
3432 7963 3429 7970 3430 7973 3427 7974
3425 7978 3425 7980 3418 7993 3442 8018
TIME...MOT...LOC 1956Z 319DEG 9KT 3433 7996
NEDThe Wilmington radar (KLTX), 125 km away, was scanning. The volume nearest the first event began at 20:01 UTC.
6 thunderstorm wind. Local standard time, as filed.
A tree was blown down on Hwy 9 at Clio Country Club.
There were two large trees that were blown down on Bridle Circle.
A tree was blown down on Trilly Lane.
A tree was blown down on Pleasant Drive.
A tree was blown down on Creek Road.
A tree was blown down on Park Avenue.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Carolina in 2018Every state in 2018This day in weather historyWarnings in South Carolina, June 2018
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 2026-10-01. Each event’s entry at NCEI: 759348, 759354, 759349, 759350, 759351, 759355.