A frontal boundary moving south from east-central Virginia into central North Carolina combined with a disturbance aloft and produced numerous showers and storms in the afternoon to late evening hours. Storms initially formed over the eastern Piedmont and Coastal Plain, congealing and tracking west-southwestward in the evening hours over the western and southern Piedmont and Sandhills.
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 RAH wrote it up.
A frontal boundary moving south from east-central Virginia into central North Carolina combined with a disturbance aloft and produced numerous showers and storms in the afternoon to late evening hours. Storms initially formed over the eastern Piedmont and Coastal Plain, congealing and tracking west-southwestward in the evening hours over the western and southern Piedmont and Sandhills. Numerous downed trees and power lines resulted, as well as flash flooding.
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 Raleigh, NC wrote its last area forecast discussion before the first event at Aug 30, 1:11 PM EST, 1 minute earlier.
Area Forecast Discussion National Weather Service Raleigh NC 211 PM EDT Fri Aug 30 2024 .SYNOPSIS... Mid and upper-level high pressure will gradually weaken over the srn Appalachians, while a quasi-stationary front will be modulated by outflow and weaken over NC, through Saturday. && .NEAR TERM /THROUGH TONIGHT/... As of 1155 AM Friday... ...Continued unseasonably hot and humid today, with scattered showers and storms this afternoon-evening... A persistent mid-level anticyclone centered over the TN Valley and srn Appalachians in 12Z upr air data will begin to weaken and retreat sewd into srn GA through tonight, as a cyclone rapidly deepens newd across Hudson Bay and a trailing synoptic trough and height falls overspread the Great Lakes and mid MS Valley. Weak, generally nwly mid-level flow, and weak height falls (10-20 m) will result across cntl NC. That light nwly flow regime may include a slow-moving and small MCV or two from convection that develops in- situ from Southside VA to cntl NC today. At the surface, an outflow boundary from a large convective complex over cntl-srn VA Thu afternoon-night, evident as an undular bore in morning visible satellite and radar data, stretched at 15Z from near ILM nwwd to HBI. Meanwhile, the backdoor segment of a synoptic front that stretched from Lake Huron ssewd across wrn PA and ern WV was analyzed as quasi-stationary from the nrn Pamlico Sound wnwwd to RWI, BUY, and INT in n-cntl NC. Both features may serve as foci for shower/storm development, as weakening CINH is removed with further diurnal heating through early afternoon, with the front favored owing to relatively maximized convergence and differential heating along it. Scattered to locally numerous multi-cell showers/storms should result, with a slow sewd to swd net motion amid weak nwly steering flow and gradual merging of outflow. High DCAPE of 1000-1200 J/kg and PWs of 1.6 - 1.75" will favor the development of wet microbursts capable of isolated damaging gusts, and also heavy rain and flooding of low-lying and/or urban areas due to slow storm motions. While some weaker convection may continue to bubble along outflow and/or the track of lingering MCVs overnight, the marginal nature of severe and/or flood risks should wane after dark. It will otherwise remain hot and humid particularly south of the quasi-stationary front before convection and cold pools become more prevalent later this afternoon. Near persistence high temperatures in the mid-upr 90s and with heat index values again mainly 100 to 105 will result across the srn half of cntl NC, with temperatures and heat index values 4-8 F less hot north of the front. The risk of excessive heat has consequently been added to the Hazardous Weather Outlook for all but the nrn Piedmont and nrn Coastal Plain. Lows tonight will be mainly in the lower 70s, with areas of stratus likely in the humid and rain and nocturnally-cooled air. && .SHORT TERM /SATURDAY AND SATURDAY NIGHT/... As of 320 AM Friday... The upper level ridge that has been influencing the Mid-Atlantic region the past few days begins to break down over the region Saturday and shifts offshore by Sunday morning. At the surface, a lee trough is anticipated to develop over the western Piedmont Saturday but could vary on location slightly as it will depend on any interactions of left over boundaries from tonight's expected convection. Saturday will start off dry in the morning but isolated showers and storms are expected to develop mid/late morning with the best chance of development in the NW Piedmont. By early afternoon coverage will expand to scattered vs isolated and the best chance for storms will will across the NW Piedmont and SE Coastal Plain. However, a storm could develop anywhere over the CWA. Rain chances reduce to 5-10% after sunset and diminish completely overnight. Temperatures will be in the upper 80s in cooler spots to low 90s elsewhere. Lows overnight will be in the low 70s. Dewpoints in the low to mid 70s will make it fell oppressive. &&. .LONG TERM /SUNDAY THROUGH THURSDAY/... As of 320 AM Friday... The main forecast concern in the extended will be a couple of slow moving cold fronts progressing across the Mid-Atlantic Sun through Mon prompting scattered to widespread showers/storms and potential for isolated flash flooding. The synoptic pattern will feature an unseasonably strong mid/upper level trough swinging through southeastern Canada, Great Lakes and the Northeast Sun through Mon evening. Ahead of this feature, an elongated and narrow tongue of 2 to 2.25" PWAT (100-150% of normal) will slowly sag southeast through central NC from Sun afternoon/evening through Mon night. The biggest and most important question mark will be the degree of instability that will be available Sun night into Mon morning. Point soundings from 00z NAM and GFS suggest 500-1500 J/kg of MUCAPE may be achievable with a deeply saturated thermo-profile >10,000 feet. This combined with FGEN forcing along the front, 850mb to 300mb mean winds parallel to the front, and slow storm propagation (Corfidi vectors < 10 kts) provides a favorable environment for higher rain totals, but is highly dependent on the upper end of the expected instability. Looking at forecast rain totals from the grand ensemble, the most likely precip totals (25th to 75th percentile) range from a tenth to around 0.5 inches in a 24 hour time period ending 8 AM Mon. Some locations could see higher totals especially if sufficient overnight instability is in place. The ceiling may be higher Mon, but forecast confidence is lower. The axis of rain will shift southeast into the central/southern Coastal Plain, Sandhills and southern Piedmont Mon into Mon night with another few tenths to around 0.75" most likely. Again, locally higher amounts will be possible, but predictability is low on the surface frontal position and axis of moderate instability Mon afternoon. Tues through Thurs: A strong 1028mb high will slip across the Great Lakes and over the northern Mid-Atlantic and ridge down through central NC into the Southeast. Falling low-level thicknesses and drier dew points are expected to settle across central NC with mostly dry conditions through midweek. Expect highs in the mid 70s to near 80 and overnight lows in the mid 50s to low 60s. Widespread radiational cooling overnight is not expected given the persistent tight pressure gradient across the area, but isolated pockets in the typical cool spots of the Piedmont may still be possible. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... As of 210 PM Friday... A quasi-stationary front stretching from near RWI to RDU to GSO will provide a primary focus for slow-moving showers/storms for the next couple of hours, with subsequent multi-cell development along rain- cooled air (outflow) through this evening. Strong surface wind gusts and brief flight restrictions will result beneath that convection, while areas of IFR-MVFR stratus will develop in its wake late tonight-Sat morning. Ceilings will lift through MVFR and/or scatter to VFR through early Sat afternoon. Additional, widely scattered showers/storms will be possible with afternoon heating Sat. Outlook: Higher precip chances look warranted Sunday and Monday as a slow moving front moves in from VA. Periods of non-VFR weather can be expected at times through Monday. A post-frontal push of drier air should work in from the north on Tuesday as high pressure settles to our north on Tuesday. && .CLIMATE... Record High Minimum Temperatures: August 30: KGSO: 73/2005 KFAY: 75/1978 August 31: KGSO: 73/2012 September 1: KGSO: 74/2012 KRDU: 76/1932 && .RAH WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...MWS NEAR TERM...MWS SHORT TERM...CA LONG TERM...Swiggett AVIATION...MWS/Leins CLIMATE...RAH
Hazardous Weather Outlook National Weather Service Raleigh NC 1053 AM EDT Fri Aug 30 2024 NCZ024>028-038>043-073>078-083>086-088-089-311500- Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake- Johnston-Wilson-Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson- Richmond-Scotland-Hoke-Cumberland-Sampson- 1053 AM EDT Fri Aug 30 2024 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. Unseasonably hot and humid conditions will result in heat index values between 100 and 105 this afternoon. In addition, scattered thunderstorms this afternoon through evening will be capable of producing isolated instances of damaging wind gusts and also heavy rain and risk of flooding of low-lying and urban areas. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Showers and storms will be possible again Sunday and Monday. The primary threat with these storms will be periods of heavy rain and flooding, although isolated damaging wind gusts can't be ruled out. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ007>011-021>023-311500- Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance- 1053 AM EDT Fri Aug 30 2024 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. Scattered thunderstorms this afternoon through evening will be capable of producing isolated instances of damaging wind gusts and also heavy rain and risk of flooding of low-lying and urban areas. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Showers and storms will be possible again Sunday and Monday. The primary threat with these storms will be periods of heavy rain and flooding, although isolated damaging wind gusts can't be ruled out. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Raleigh NC
129 PM EDT Fri Aug 30 2024
NCZ023-024-301815-
Alamance NC-Orange NC-
129 PM EDT Fri Aug 30 2024
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN ALAMANCE AND
NORTHERN ORANGE COUNTIES THROUGH 215 PM EDT...
At 129 PM EDT, Doppler radar was tracking a strong thunderstorm near
Prospect Hill, moving southeast at 10 mph.
HAZARD...Wind gusts in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Hillsborough, Mebane, Carr, Efland, and Schley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3624 7932 3624 7910 3614 7897 3598 7925
3622 7938 3625 7933
TIME...MOT...LOC 1729Z 325DEG 8KT 3622 7924
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
CASpecial Weather Statement
National Weather Service Raleigh NC
136 PM EDT Fri Aug 30 2024
NCZ024-025-040-041-301815-
Chatham NC-Durham NC-Wake NC-Orange NC-
136 PM EDT Fri Aug 30 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN ORANGE...WEST
CENTRAL WAKE...SOUTHWESTERN DURHAM AND NORTHEASTERN CHATHAM COUNTIES
THROUGH 215 PM EDT...
At 136 PM EDT, Doppler radar was tracking a strong thunderstorm near
Chapel Hill. This thunderstorm was nearly stationary.
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...
Raleigh, Durham, Cary, Chapel Hill, Carrboro, RDU International,
Morrisville, Parkwood, William B Umstead State Park, and Jordan Lake.
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.
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 3591 7910 3599 7887 3587 7871 3578 7886
3577 7904
TIME...MOT...LOC 1736Z 329DEG 2KT 3591 7897
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
CASpecial Weather Statement
National Weather Service Raleigh NC
142 PM EDT Fri Aug 30 2024
NCZ007>011-301830-
Vance NC-Warren NC-Person NC-Halifax NC-Granville NC-
142 PM EDT Fri Aug 30 2024
...STRONG THUNDERSTORMS WILL IMPACT EASTERN PERSON...VANCE...NORTHERN
WARREN...GRANVILLE AND NORTHWESTERN HALIFAX COUNTIES THROUGH 230 PM
EDT...
At 140 PM EDT, Doppler radar was tracking a cluster of strong
thunderstorms extending from 6 miles south of Virgilina to Brodnax.
Movement was southeast at 15 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Henderson, Oxford, Warrenton, Norlina, Littleton, Stem, Stovall,
Middleburg, Macon, and Mayo Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3651 7790 3648 7776 3649 7771 3615 7878
3623 7880 3624 7883 3648 7897 3654 7875
3654 7790
TIME...MOT...LOC 1740Z 322DEG 14KT 3646 7879 3669 7801
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
CASpecial Weather Statement
National Weather Service Raleigh NC
144 PM EDT Fri Aug 30 2024
NCZ041-301845-
Wake NC-
144 PM EDT Fri Aug 30 2024
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL WAKE COUNTY THROUGH
245 PM EDT...
At 143 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles east of Raleigh. This thunderstorm was nearly stationary.
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...
Raleigh, Zebulon, Knightdale, Wendell, and Rolesville.
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.
Heavy rain can be expected due to the slow movement of this storm.
Prolonged heavy rain will result in ponding of water on roadways,
standing water in low lying areas, and minor flooding of creeks and
streams. Drivers are urged to slow down and use extra caution to
avoid hydroplaning.
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 3583 7866 3595 7851 3583 7830 3568 7852
TIME...MOT...LOC 1743Z 314DEG 3KT 3584 7852
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
CAThe Raleigh/Durham radar (KRAX), 25 km away, was scanning. The volume nearest the first event began at 18:14 UTC.
16 thunderstorm wind, 8 flash flood. Local standard time, as filed.
A tree was reported down on Sedgefield Dr.
A large oak tree fell on a truck near the intersection of Hodges St and Atlantic Ave.
Numerous trees were reported down across the northern half of the county.
A tree fell on power lines, causing a power outage near Brooks Elementary School.
Several cars were stalled in flood waters and needed water rescues along Wake Forest Rd.
Trees were reported down on powerlines, causing power outages near the town of Gorman.
Multiple disabled vehicles were in flood waters along Atlantic Ave.
Trees were reported down powerlines, causing power outages in west Durham.
A tree was reported down along E Horton St in Zebulon.
A tree was reported down near the intersection of Privette Rd and Edgemont Rd.
The public reported minor damage to a roof near Glenn School Rd.
Law enforcement reported flooding along Lorain Ave near North Duke St. The road was closed due to flash flooding.
A tree fell on powerlines along E Greensboro Chapel Hill Rd.
Trees were uprooted about 2 miles north of Pittsboro.
Trees and powerlines were down in the town of Spring Hope.
US Highway 70 and N Berkeley Blvd was flooded due to heavy rainfall.
Several trees were reported down in the town of Seven Springs.
Several trees were reported down in the town of Saulston.
Law enforcement reported flooded roadways in the town of New Hope.
Law enforcement reported several trees down in the town of Archdale.
Law enforcement reported a vehicle was submerged in flood waters near the intersection of Royal Ave and N Spence Ave in the town of Goldsboro.
Law enforcement reported flash flooding near the intersection of Sunny Ln and Archdale Rd in the town of Archdale.
Law enforcement reported flooding in the towns of Goldsboro and Saulston.
Several trees were reported down in the town of Rockingham.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2024Every state in 2024This day in weather historyWarnings in North Carolina, August 2024
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: 1208801, 1208810, 1208791, 1208825, 1208747, 1208826, 1208740, 1208827, 1208843, 1208839, 1208853, 1208752, 1208847, 1208855, 1208834, 1208765, 1208850, 1208851, 1208788, 1208852, 1208785, 1208777, 1208789, 1208854.