A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening.
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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 PBZ wrote it up.
A wavy and nearly stationary frontal boundary was in place near the Mason-Dixon Line. Morning clouds hindered destabilization somewhat, but afternoon clearing and the arrival of a mesoscale low allowed storms to blossom during the afternoon and evening. Although a few wind damage reports were received, flash flooding was the main focus of this event. Flooding reports were received from Columbiana, Jefferson, and Harrison Counties in Ohio. Tree damage from severe thunderstorm wind also occurred in Columbiana County.
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 Pittsburgh, PA wrote its last area forecast discussion before the first event at Jun 10, 12:34 PM EST, 33 minutes earlier.
Area Forecast Discussion National Weather Service Pittsburgh PA 134 PM EDT Sun Jun 10 2018 .SYNOPSIS... Rounds of showers and thunderstorms will continue into Monday morning as disturbances interact with a wavy frontal boundary. && .NEAR TERM /THROUGH TONIGHT/... Rain continues to shift east this morning as a shortwave departs. A small break in precipitation is still expected before the next shortwave approaches later today. Clouds should hinder destabilization for much of the area, especially the north, which will keep vigorous convection at bay. Better heating along the Mason-Dixon Line may allow for a stronger storm or two this afternoon, but locally heavy rainfall will continue to be the primary impact given continued high PWAT values. Cannot rule out localized flooding as some areas received over an inch of rain from last night to this morning. The closed low moving through the lower Great Lakes will open up and get absorbed by the broader trough over New England late tonight. This will drive the front southward again, but not without additional showers and thunderstorms. Will keep at least chance PoPs in tonight's forecast. Expansive cloud cover should hold Sunday highs in check to near seasonal averages. && .SHORT TERM /MONDAY THROUGH WEDNESDAY/... Models continue to show the boundary making it far enough south Monday that by evening the focus of heavier rainfall will be just south of the forecast area. The break will be short, however, as precipitation chances return with another lower Great Lakes low Tuesday afternoon. Moisture will begin eroding thereafter, but enough should linger to generate scattered showers Wednesday afternoon with a cold front. Temperatures will continue to ease back to just below average for Monday and Monday night before climbing back above average for Tuesday and Wednesday. && .LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/... High pressure will move into the region behind the departing cold front Wednesday night. There is some question as to how far south the cold front can make it. Current forecast is to have the boundary stall near central WV and stretching back towards the lower Ohio River. This would keep Thursday mostly dry areawide. An upper-level trough axis will swing through on Friday and could produce some scattered showers, but the larger impact it will have is to drive the stationary boundary further south and away from the local forecast area. High pressure will then regain control heading into the weekend. Temperatures should really jump next weekend under strong upper ridging. Deviated from the SuperBlend temperatures to account for this. && .AVIATION /17Z SUNDAY THROUGH THURSDAY/... Ceilings will gradually improve this afternoon south of the frontal boundary that is situated across the upper Ohio Valley with ample mixing. Further north toward FKL and DUJ however, VFR may not be experienced for long or at all. Most of the hi res guidance indicates that showers and thunderstorms will fire as a result of the remnant convection over OH/IN interacting with the surface boundary this eve with a more organized area of rain, associated with an approaching upper level shortwave, passing tonight. As such, have adjusted the timing of thunder and showers back a few hours. Anticipate brief low MVFR/IFR restrictions in any stronger storms, with widespread IFR cigs most likely returning areawide as the aforementioned disturbance pushes the boundary southward once again. Boundary should be in the vicinity of the Mason-Dixon line by Monday morning. Think, similarly to this morning, IFR/low MVFR restrictions will be slow to improve through midday. Wind may gust south of the front where surface heating is greatest this afternoon, but generally expect light surface flow to continue. OUTLOOK... Another disturbance and cold front are slated to generate showers and storms again on Tuesday and Wednesday. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...None. OH...None. PA...None. WV...None. &&
Hazardous Weather Outlook National Weather Service Pittsburgh PA 256 AM EDT Sun Jun 10 2018 PAZ007>009-013>016-022-023-110700- Mercer-Venango-Forest-Lawrence-Butler-Clarion-Jefferson-Armstrong- Indiana- 256 AM EDT Sun Jun 10 2018 This Hazardous Weather Outlook is for northwest Pennsylvania, west central Pennsylvania and western Pennsylvania. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073>076- WVZ001>004-012-021-509>514-110700- Garrett-Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson- Muskingum-Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny-Washington- Greene-Westmoreland-Westmoreland Ridges-Fayette-Fayette Ridges- Hancock-Brooke-Ohio-Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 256 AM EDT Sun Jun 10 2018 This Hazardous Weather Outlook is for western Maryland, east central Ohio, southwest Pennsylvania, western Pennsylvania, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...Today and Tonight. Multiple rounds of showers and thunderstorms could lead to localized flooding through tonight. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1013 AM EDT SUN JUN 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0951 AM HEAVY RAIN 1 E MCKEESPORT 40.35N 79.83W
06/10/2018 M0.96 INCH ALLEGHENY PA PUBLIC
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1035 AM EDT SUN JUN 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1034 AM HEAVY RAIN PERRYOPOLIS 40.09N 79.75W
06/10/2018 M1.27 INCH FAYETTE PA COCORAHS
&&
EVENT NUMBER PBZ1803101The Pittsburgh radar (KPBZ), 54 km away, was scanning. The volume nearest the first event began at 18:06 UTC.
6 flash flood, 1 thunderstorm wind. Local standard time, as filed.
The county 911 Call Center reported road closed due to high water.
Multiple trees reported down by the Department of Transportation.
The local Fire Department reported that the North Fork Yellow Creek has overflowed its banks and flooded SR 39, SR 164, Church Street, Cleveland Ave, and East Washington Street. A few streets in downtown Salineville have also had flooded roadways.
Roadway flooding was reported in Salineville.
Local police department reported flooded roadways along Route 250.
Citizens of Adena reported flooding near the bridge in Adena, OH. Multiple homes had flooded yards as well.
Road flooding was reported in Dillonvale by local media.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2018Every state in 2018This day in weather historyWarnings in Ohio, 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 2026-09-24. Each event’s entry at NCEI: 768074, 768067, 768072, 768745, 768075, 768076, 768748.