Several rounds of rainfall over the past couple of days, combined with heavy rain from ongoing showers and thunderstorms this morning, led to localized flash flooding in western Powell and southern Montgomery Counties. This resulted in a couple of roads being closed due to flowing water inundating them.
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 JKL wrote it up.
Several rounds of rainfall over the past couple of days, combined with heavy rain from ongoing showers and thunderstorms this morning, led to localized flash flooding in western Powell and southern Montgomery Counties. This resulted in a couple of roads being closed due to flowing water inundating them.
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 Jackson, KY wrote its last area forecast discussion before the first event at Aug 1, 9:08 AM EST, 7 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Jackson KY 1008 AM EDT Wed Aug 1 2018 .UPDATE... Issued at 1008 AM EDT WED AUG 1 2018 Heavy rain this morning in the northeastern portion of the CWA has moved out with a quasi outflow boundary shifting southeast toards southeast Kentucky. Some lighter rain shower activity continues across the area, but it does look like some areas in the southwest may see a dry slot move through into this afternoon. The activity may focus more to the east by this afternoon, where the better forcing will reside. Short term models pick up this idea quite well, so will adjust pops to focus more in the east this afternoon. Instability is quite limited, but a few storms may creep into southeast Kentucky this afternoon. With ongoing clouds and showers, temperatures will continue to be held in check today, so have lowered temperatures a bit. UPDATE Issued at 730 AM EDT WED AUG 1 2018 Did another update to fine tune the PoPs and Wx through the rest of the morning based on the radar trends and also the latest CAMs guidance. Updated the T and Td grids, as well, to incorporate the current obs and trends. These have been sent to the NDFD and web servers. && .SHORT TERM...(Today through Thursday) Issued at 425 AM EDT WED AUG 1 2018 07z sfc analysis shows low pressure through the Ohio Valley with a a weak cold front slowly pressing southeast toward the area. The flow and moisture convergence ahead of this boundary is maintaining showers and a few embedded thunderstorms across central and eastern Kentucky early this morning - favoring our western and northern counties. This convection combined with plenty of clouds is limiting the fog induced visibility restrictions to places that recently saw rainfall rather than the more typical valley locations. Likewise, the moist environment is keeping conditions fairly uniform through eastern Kentucky with temperatures generally near 70 degrees and dewpoints in the mid to upper 60s. Winds remain light and variable, as well. So far, early this morning, the more concentrated areas of rain have been progressive enough to forestall any excessive rainfall concerns. That may not be the case going forward. The models remain in great agreement aloft through the short term portion of the forecast as they all slowly dampen a trough currently stuck over the Ohio Valley. The core of the energy associated with this lifts north out of the area today, but additional batches develop through the southeast parts of Kentucky into Thursday - bolstered by the blocking Bermuda High off the East Coast and deep level southwest flow through the southern and central Appalachians. It is this flow that will support a continual stream of high moisture air into the eastern parts of the JKL CWA and moreso on the eastern slopes of the Appalachians through at least Thursday night. Prolonged upper level divergence will also help to drive the precipitation potential for the southern Appalachians. The moisture will interact with the boundary as it stalls just to our southeast and maintain a heavy rain threat across our far southeast counties - though the upslope component will favor the other side of the Appalachians where a greater threat for excessive rains will exist and persist. For now, will hold off on any flood watches for this area, though they may be necessary if enough convection is able to spill into the western slopes over the next 48 hours, or so. Have followed a general model blend for the grids with a greater emphasis on the CAMs models today and tonight for weather details and QPF placement. Sensible weather will feature continued seasonably cool weather during the days due to clouds and convection while temperatures will be uniformly mild tonight amid similar conditions limiting the diurnal temperature spread. For today the western parts of the area will be more favored for showers and storms as the front presses into the area with flood concerns limited to areas of training cells. However, tonight and Thursday will see the better convection and QPF move into the eastern parts as that front begins to stall and forecasted rain totals will need to be considered for possible headlines going forward. Again used the CONSShort and ShortBlend as the starting point for the grids with only minor adjustments to temperatures through Thursday given the moisture and convection around - though did go a couple of degrees warmer for highs today as most places will not be a washout. The PoPs were adjusted mainly higher for our western parts tonight and Thursday due to uncertainty with the stalling of the frontal boundary and any spill over from the convection to the southeast. .LONG TERM...(Thursday night through Tuesday) Issued at 300 AM EDT WED AUG 1 2018 A slow moving boundary will be exiting the Commonwealth to begin the long term. Upper level forcing will weaken as we head into the weekend as well, as an upper level trough that extended over the Great Lakes into the Mississippi Valley diminishes. At the surface, high pressure will set up to the southeast of Kentucky, bringing in warm, moist air from the Gulf. With this pattern and modest instability, summertime afternoon/evening showers and thunderstorms will be possible throughout the extended. Since the models were in good agreement, did not stray from the Blend. Although, did add a temperature split in the river valleys for both Sunday and Monday mornings due to light, southerly flow and clearing skies. High temperatures Friday will be in the lower 80s, but will increase to the mid 80s through Tuesday. Low temps will be in the mid to upper 60s through the period. && .AVIATION...(For the 12Z TAFS through 12Z Thursday morning) ISSUED AT 800 AM EDT WED AUG 1 2018 Showers and embedded thunderstorms will continue to move through the area this morning and into the afternoon. Expect to see some cig and visibility reductions with this convection - particularly this morning. While showers and rogue storms will continue to be a threat through the afternoon and into the evening. MVFR/VFR conditions should largely return by early afternoon most places. The convection will favor the western parts of the area this morning and then the east later this afternoon and tonight. Winds will remain light away from any storms - generally out of the southwest. && .JKL WATCHES/WARNINGS/ADVISORIES... NONE. && UPDATE...KAS SHORT TERM...GREIF LONG TERM...CGAL AVIATION...GREIF
Hazardous Weather Outlook National Weather Service Jackson KY 1000 AM EDT Wed Aug 1 2018 KYZ050-051-058>060-021700- Montgomery-Bath-Estill-Powell-Menifee- Including the cities of Camargo, Jeffersonville, Mount Sterling, Owingsville, Irvine, Ravenna, Clay City, Stanton, and Frenchburg 1000 AM EDT Wed Aug 1 2018 This hazardous weather outlook is for portions of eastern Kentucky. .DAY ONE...Today and Tonight. Runoff from recent heavy rainfall could lead to some localized flooding into early this afternoon. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorms are possible at times Thursday through Tuesday, mainly during the afternoon and evening hours. Locally heavy rainfall will be a concern during this time - especially near the Virginia border on Thursday and Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. KYZ085>088-107-109-110-112-113-115>120-021700- Whitley-Knox-Bell-Harlan-Johnson-Magoffin-Floyd-Breathitt-Knott- Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Corbin, Williamsburg, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Paintsville, Salyersville, Prestonsburg, Wheelwright, Jackson, Hindman, Pippa Passes, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 1000 AM EDT Wed Aug 1 2018 This hazardous weather outlook is for portions of eastern Kentucky. .DAY ONE...Today and Tonight. Thunderstorms are possible this afternoon. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorms are possible at times Thursday through Tuesday, mainly during the afternoon and evening hours. Locally heavy rainfall will be a concern during this time - especially near the Virginia border on Thursday and Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. KYZ044-052-068-069-079-080-083-084-104-106-108-111-114-021700- Fleming-Rowan-Rockcastle-Jackson-Pulaski-Laurel-Wayne-McCreary- Elliott-Morgan-Wolfe-Lee-Owsley- Including the cities of Flemingsburg, Morehead, Brodhead, Mount Vernon, McKee, Annville, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Sandy Hook, West Liberty, Campton, Beattyville, and Booneville 1000 AM EDT Wed Aug 1 2018 This hazardous weather outlook is for portions of eastern Kentucky. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Thunderstorms are possible at times Thursday through Tuesday, mainly during the afternoon and evening hours. Locally heavy rainfall will be a concern during this time - especially near the Virginia border on Thursday and Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time. KAS
The Jackson,KY radar (KJKL), 68 km away, was scanning. The volume nearest the first event began at 14:13 UTC.
2 flash flood. Local standard time, as filed.
Dispatch relayed a report of water flowing over Orear Road off of Kentucky Highway 11 south of Mount Sterling.
Dispatch reported that a portion of Adams Ridge Road west of Clay City was closed due to flowing water over the highway.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2018Every state in 2018This day in weather historyWarnings in Kentucky, August 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: 762096, 762095.