Heavy rain on already saturated soil produced flash flooding.
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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.
Heavy rain on already saturated soil produced 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 Wilmington, NC wrote its last area forecast discussion before the first event at Jul 30, 9:10 AM EST, 10 minutes earlier.
Area Forecast Discussion National Weather Service Wilmington NC 1010 AM EDT Mon Jul 30 2018 .SYNOPSIS... An upper trough to the west interacting with the Bermuda High, will stream abundant tropical moisture across the area through most of the week. This will result plenty of clouds and periods of intermittent heavy rain in showers and thunderstorms with an increased potential for flooding through mid to late week. && .NEAR TERM /THROUGH TONIGHT/... As of 1000 AM Monday...Other than to raise QPF over the Cape Fear region there are no changes to the forecast at this time. As of 300 AM Monday...the synoptic pattern has not changed in the past 24 hours. High pressure entrenched over the Atlantic and a developing trough to the west. The 850 mb gradient tightens this morning and the models develop a 20 to 25 knot jet which will continue to pump the moisture into the region. This deep tropical moisture is reflected in the precipitable water with values between 2.0" and 2.5". Currently a strong short-wave trough is moving north along the coast and will shift north of the area during the morning. Other weaker waves are seen in the models but confidence with their timing is not high but with the instabilities of 1200 to 1600 J/kg, convection will continue to develop through the period. Highs today will be kept down with temperatures in the middle 80s and lows tonight will fall back into the middle 70s. && .SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... As of 300 AM Monday...Feed of tropical moisture continues to feed up through the eastern Carolinas in a deep S-SW flow through much of the mid week period. Mid to upper trough will dig down from the Great Lakes down the Mississippi Valley on Tues into Wed. At the same time, a ridge of high pressure over the Atlantic will build westward. This will tighten the gradient flow through Tues and continue to channel a plume of tropical moisture right up through the Carolinas. Pcp water values will be up near 2.25 inches through Tues with winds up to 20 to 30 kts through the low levels. Overall expect periods of heavy rain through Tues morning as shortwave energy rotates around the deep mid to upper trough. Late Tues into Wed, the ridge to the east seems to exert itself far enough west to allow for some drying through the column with pcp water values dropping from around 2.25 inches on Tues down to 1.5 just along and off the coast by Wed aftn. Therefore the axis of greatest moisture and focus of showers and thunderstorms should shift inland by Wed aftn into Wed night with clouds breaking up some and a break or decrease in convective activity. The NAM is more aggressive with the dry air reaching farther inland over our local area on Wed which may bring some sunshine to the coast. But, moisture profiles still look like there will be plenty of lower level moisture up to 3 k ft and plenty of moisture above 20 k ft. Therefore may not see too much in the way of sun, but have tried to adjust the Pops to just chance along the coast and likely mainly west of I-95 corridor. Places that do have shwrs/tstms will have an increased threat of heavy rain and flooding. Warm southerly flow and increased clouds will keep diurnal ranges relatively low. Highs Tues and Wed will be in mid 80s with a better chance of some upper 80s if the clouds thin out a bit during the day, especially Wed aftn. Overnight lows will be in the mid 70s. && .LONG TERM /THURSDAY THROUGH SUNDAY/... As of 300 PM Sunday...Wet weather is expected to continue through much of the extended range with an upper trough to the west and the Bermuda high to the east. By the weekend, the upper trough is forecast to weaken as an upper ridge builds over the area. The result of this will be a decreasing trend in the coverage of showers and storms for the weekend as compared to Thurs and Fri. Overall, temperatures will be slightly below normal for this time of year with maximums in the mid to upper 80s and lows in the low to mid 70s. Max temperatures in the upper 80s to lower 90s are possible for the weekend as the upper ridge builds into the area. && .AVIATION /12Z MONDAY THROUGH FRIDAY/... As of 12Z...Abundant moisture available again today. The NAM tries to push most of the convection north of the CWA, but think we will still see scattered to numerous convection. Some of the rain will take visibilities down to IFR, but think MVFR will prevail most of the day. Remaining cloudy tonight, with some fog possible particularly in areas that received heavy rain. Extended Outlook...MVFR/IFR from scattered to numerous SHRA/TSRA each afternoon and evening across all sites, otherwise VFR. The coastal terminals, KILM, KCRE, and KMYR could see early morning convection especially Tuesday and Wednesday. && .MARINE... NEAR TERM /THROUGH TONIGHT/... As of 300 AM Monday...the high pressure area to the east continues its hold and a trough is developing to the west. This allows for a southerly wind of 10 to 15 knots over the waters through most of the period with the winds having a slight shift to the southwest. Currently the winds are running 10 to 15 knots with wind waves of 3 to 4 feet. The nearshore wave model is showing 3 to 4 feet to continue through most of the day with a few 5 footers late tonight. SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/... As of 300 AM Monday...Gradient will tighten up heading into Tuesday with S to SW winds up to 15 to 20 kts. These persistent southerly winds should push seas near or just above SCA thresholds on Tues reaching between 4 and 6 ft most waters, with a shorter period wind wave dominating around 6 to 7 seconds. A precautionary headline may start the period with SCA possibly following through much of Tues and then diminishing winds and seas heading into Wed aftn and night. Thunderstorms with very heavy rain and frequent lightning through Tuesday night should diminish as axis of greatest moisture narrows and focused more inland or just along the coast. LONG TERM /THURSDAY THROUGH FRIDAY/... As of 300 PM Sunday...S winds will abate to about 10 KT by Thursday and continue into Friday. Seas of 3 to 5 FT Wednesday will subside to 3 FT or less by Friday. Chances for showers and storms with locally higher winds and seas remain through the period. && .ILM WATCHES/WARNINGS/ADVISORIES... SC...None. NC...None. MARINE...None. && NEAR TERM...MBB/DRH SHORT TERM...RGZ LONG TERM...RAN AVIATION...43
Hazardous Weather Outlook National Weather Service Wilmington NC 600 AM EDT Mon Jul 30 2018 NCZ106-108-110-SCZ054-056-311000- Coastal Pender-Coastal New Hanover-Coastal Brunswick-Coastal Horry- Coastal Georgetown- 600 AM EDT Mon Jul 30 2018 ...MODERATE RISK OF RIP CURRENTS IN EFFECT THROUGH THIS EVENING... This Hazardous Weather Outlook is for southeast North Carolina and northeast South Carolina. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Moderate Risk of Rip Currents. Periods of heavy rain in thunderstorms could result in localized flooding and ponding. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Onshore flow and energetic wave energy will result in an elevated rip current risk throughout much of this week. Heavy rain in thunderstorms will produce some areas of ponding or flooding Tuesday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ087-096-099-105-107-109-SCZ017-023-024-032-033-039-055-058-059- 311000- Robeson-Bladen-Columbus-Inland Pender-Inland New Hanover- Inland Brunswick-Marlboro-Darlington-Dillon-Florence-Marion- Williamsburg-Inland Georgetown-Central Horry-Northern Horry- 600 AM EDT Mon Jul 30 2018 This Hazardous Weather Outlook is for southeast North Carolina and northeast South Carolina. .DAY ONE...Today and Tonight. Periods of heavy rain in thunderstorms could result in localized flooding and ponding. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Heavy rain in thunderstorms will produce some areas of ponding or flooding Tuesday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. AMZ250-252-254-256-311000- 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- 600 AM EDT Mon Jul 30 2018 This Hazardous Weather Outlook is for the adjacent Coastal Waters. .DAY ONE...Today and Tonight. Showers and thunderstorms will produce low visibility in periods of heavier rain and could produce occasional lightning, mainly through this morning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Small craft exercise caution or marginal small craft advisory conditions possible Tuesday into Wednesday. Isolated waterspouts possible through Thursday, mostly during the mornings. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Wilmington radar (KLTX), 51 km away, was scanning. The volume nearest the first event began at 14:16 UTC.
2 flash flood. Local standard time, as filed.
A house on Carolina Beach Drive had two feet of water in it. Flooding was reported on Canal Drive and South Lake Park Drive.
Cathy road was closed due to high water.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Carolina in 2018Every state in 2018This day in weather historyWarnings in North Carolina, July 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 2026-09-24. Each event’s entry at NCEI: 776755, 776756.