Scattered afternoon showers and thunderstorms developed in the North Carolina and Virginia mountains and moved southeastward and developed into a line and moved into the northwest Piedmont of central North Carolina. The line of storms produced multiple reports of wind damage across the northwest Piedmont.
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.
Scattered afternoon showers and thunderstorms developed in the North Carolina and Virginia mountains and moved southeastward and developed into a line and moved into the northwest Piedmont of central North Carolina. The line of storms produced multiple reports of wind damage across the northwest Piedmont.
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 21, 2:29 PM EST, 1 hour 44 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Raleigh NC 325 PM PM EDT Wed Aug 21 2019 .SYNOPSIS... Weak subsidence will filter into central NC on the backside of a departing upper level disturbance exiting east off the coast. In its wake, a surface trough will begin to sharpen across the Appalachian foothills with the Bermuda high strengthening off the southeastern Atlantic Coast. This will help strengthen onshore flow ahead of a strengthening upper-trough and associated cold front, likely to pass through central NC Friday night and Saturday. && .NEAR TERM /THROUGH TONIGHT/... As of 220 PM Wednesday... Latest water vapor imagery depicts a weakening shortwave now departing off the Mid Atlantic coast with a secondary shear axis, associated with a weakening mid level shortwave, now beginning to cross the Appalachian Mountains. At the surface, Bermuda high pressure continues to keep southwesterly flow dominant across the eastern seaboard with a developing leeside trough beginning to sharpen along the Appalachian foothills. Full boundary layer heating and mixing was slow to come by this morning thanks to a stubborn low level stratus deck in place across much of the CWA. This feature finally decayed around lunchtime, allowing at least modest heating/destabilization to occur. Current SPC mesoanalysis depicts 2500 - 3500 J/KG SB Cape beginning to form across portions of central NC, with ML CAPE nearing 2000 J/KG across the eastern Piedmont/Coastal Plain zones where surface dewpoints remain in the middle 70s. Some subsidence/capping is evident across the area, which should be ample enough to limit airmass thunderstorm development until much later in the period. CAMs continue to back off on tstorm coverage this afternoon and evening, depicting only isolated development along the residual MCV/Outflow boundary draped NE/SW just east of the I-95 corridor, where coverage should be prominent earlier in the period (between 2pm- 6pm); and across the northwest Piedmont where weak mid-level forcing is expected to cross east of the foothills with residual daytime heating to work with. In response, have trended POPs slightly higher than CAM guidance this afternoon and evening, with isolated to scattered storms possible, especially across the northwestern zones. Any storms that do form could produce locally heavy rainfall thanks to slower storm motions (15 to 20kts) and localized damaging wind gusts from embedded wet microbursts. Showers and storms may linger briefly into the overnight hours, but should weaken drastically with the setting sun. Even with the late start, afternoon temperatures remain on track, likely to top out in the upper 80s to lower 90s in the next few hours. Overnight lows will settle in the lower 70s, with only patchy fog/stratus formation possible. && .SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/... As of 325 PM Wednesday... Our region will remain primarily under the influence of the Bermuda high during the short-term period, keeping a warm/moist surface flow regime in place. Strengthening westerly flow aloft will help to sharpen and maintain the lee side trough over the western Piedmont zones, which will likely serve as the primary forcing mechanism for afternoon showers and thunderstorms. Skies should remain mostly clear for the early part of the day, allowing plenty of destabilization to occur. Expect SB/ML CAPE values equivalent if not slightly higher than on Monday thanks to slightly higher sfc dewpoints and plentiful surface heating. While most CAMs aren't very bullish in terms of convective coverage, expect at least airmass type thunderstorms to be scattered to low end numerous, especially along and west of US-1. Primary threat will once again be locally damaging winds and heavy rainfall due to the slow moving nature of the convection. Storms should follow diurnal climo guidelines, and diminish rapidly after sunset, leaving only patchy fog/stratus. Daytime high temperatures will be comparable, if not a degree or two warmer than what was witnessed Wednesday, topping out in the upper 80s (NW) to lower 90s. Overnight lows will settle into the low to mid 70s. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... As of 250 PM Wednesday... A cold front associated with an unseasonably strong northern stream trough/upper low passage through the NE US and Mid-Atlantic states will provide the focus for widespread showers and storms at the start of the period. The timing of this front through the area continues to be a source of large model spread and high forecast uncertainty. General timing brings the cold front into the area from the NW late Friday afternoon and will slip slowly south through the overnight, before finally settling south of the area on Saturday. Low-level frontal convergence underneath the right entrance region of a ~90 kt upper jet streak associated with the upper trough moving through the region will result in deep/strong ascent across the area. Precipitable waters of 2.0-2.25", MLCAPE ~2000 J/Kg and a belt of strong westerlies of 30 to 35 kts dropping south into the area will support the threat for organized strong to severe storms, along with the threat of heavy rainfall of 1 to 2 inches with localized flash flooding possible Friday afternoon and evening. If latest model trends verify, a shallow of wedge of cooler and stable air will advect south through the day on Saturday as the cold front progresses south into SC and GA. While convection should follow the front, models suggest a a period of ana-frontal precip lingering across at least southern portions of the forecast area INVOF of the h8 trough axis Saturday afternoon and evening, possibly lingering into Saturday night. As the cooler and drier continues to filter into the area from the north Saturday night and into Sunday, courtesy of a strong ~1030 parent sfc high over New England, rain chances should decrease, leaving behind primarily cloudy and cool conditions Sunday and Monday. Rain chances return as early as Tuesday and Wednesday with the approach of a shortwave trough from the WSW. Finally, the NHC is monitoring an area of disturbed weather located over the central and northwestern Bahamas. Some slow development of this system is possible with a low-20% chance of becoming a tropical cyclone over the next several days. As such, it is incredibly too early to forecast what impacts, if any, are possible across central NC. Make sure you follow a trusted weather source for all of your weather information. && .AVIATION /17Z WEDNESDAY THROUGH MONDAY/... As of 115 PM Wednesday... Conditions have been slow to return to VFR across central NC this morning thanks to a stubborn stratus deck which has finally shown some decay. VFR conditions should prevail and persist over the next 24 hours as mid level subsidence fills in behind the departing upper- level system, now progressing off the Mid Atlantic Coastal Plain. Even shower and thunderstorm coverage should remain isolated at best this afternoon, with CAMs continuing to come in less impressive with each sequential model run. Still can't rule out a passing shower/storm across the Triad terminals between 4pm - 9pm this evening, but elsewhere, probability remains too low to include in the forecast for now. Fog and stratus shouldn't be as widespread tonight into Thursday morning thanks to drier air in place. An unsettled weather pattern is expected to end the week as a moisture builds ahead of a cold front, likely to pass through the region Friday night into Saturday. This will increase shower and thunderstorm coverage along with increase the likelihood of widespread fog/stratus across the region each morning. There could be a brief period of favorable aviation conditions on the backside of the front Saturday evening into Sunday, however, the front is expected to return precipitation chances back North as early as Sunday night, likely to bring additional rounds of showers and storms into early next week. && .EQUIPMENT... Repairs out at the GSO Upper-Air observation site have been completed. Flights will continue, as weather dictates, beginning again tongiht (00z Thursday Observation). National helium shortages continue to impede normal observation schedules. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...JJM NEAR TERM...JJM SHORT TERM...JJM LONG TERM...CBL AVIATION...JJM EQUIPMENT...RAH
Hazardous Weather Outlook National Weather Service Raleigh NC 439 AM EDT Wed Aug 21 2019 NCZ007>011-021>028-038>043-221000- Person-Granville-Vance-Warren-Halifax-Forsyth-Guilford-Alamance- Orange-Durham-Franklin-Nash-Edgecombe-Davidson-Randolph-Chatham-Wake- Johnston-Wilson- 439 AM EDT Wed Aug 21 2019 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. An isolated severe thunderstorm will be possible Thursday afternoon with the main severe weather hazard being damaging wind gusts. A very moist and unstable atmosphere will lead to the development of scattered thunderstorms Friday and Saturday. The thunderstorms will produce brief periods of torrential rainfall, possibly resulting in minor flooding. Additionally, a few of the storms may become severe producing damaging wind gusts and marginally large hail. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ073>078-083>086-088-089-221000- Stanly-Montgomery-Moore-Lee-Harnett-Wayne-Anson-Richmond-Scotland- Hoke-Cumberland-Sampson- 439 AM EDT Wed Aug 21 2019 This Hazardous Weather Outlook is for central North Carolina. .DAY ONE...Today and tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. An isolated severe thunderstorm will be possible Thursday afternoon with the main severe weather hazard being damaging wind gusts. A very moist and unstable atmosphere will lead to the development of scattered thunderstorms Friday and Saturday. The thunderstorms will produce brief periods of torrential rainfall, possibly resulting in minor flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Roanoke radar (KFCX), 87 km away, was scanning. The volume nearest the first event began at 21:14 UTC.
16 thunderstorm wind, 1 lightning. Local standard time, as filed.
Multiple trees were reported down in the Rural Hall area.
Several trees were reported down near Century Park Avenue.
One tree was reported down in the 100 block of Liberty Drive.
One tree was reported down in the 6300 block of Lake Brandt Road.
One tree was reported down at the 4200 block of West Lexington Avenue Extension.
One tree was reported down at the 1100 block of Joe Moore Road.
One tree was reported down at Hasty Hill Road and Burton Road.
One tree was reported down at Air Harbor Road and Gold Dust Trail.
One tree was reported down at Yanceyville Road and Doggett Road.
Approximately 10 trees were reported down in the Archdale and Trinity areas.
One tree was reported down at West Market Street and Ashland Drive.
Numerous trees were reported down in the Mcleansville area.
One tree was reported down at University Drive and South Church Street.
One tree was reported down at the 4100 block of Gilliam Church Road.
A large tree was reported down on the 100 block of North Cameron Street.
Two trees were reported down near the McDowell Road exit off of Interstate 74.
Lightning struck a traffic light box at the intersection of Homestead Road and Seawell School Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2019Every state in 2019This day in weather historyWarnings in North Carolina, August 2019
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: 853067, 853068, 853069, 853070, 853071, 853072, 853073, 853074, 853075, 853076, 853077, 853078, 853079, 853080, 853081, 853082, 853083.