A series of low-amplitude speed maxima aloft moved across western Pennsylvania. Moderate instability and some deep-layer shear was sufficient for a few organized severe thunderstorms which produced wind damage and a few hail reports.
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 CLE wrote it up.
A series of low-amplitude speed maxima aloft moved across western Pennsylvania. Moderate instability and some deep-layer shear was sufficient for a few organized severe thunderstorms which produced wind damage and a few hail reports.
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 Cleveland, OH wrote its last area forecast discussion before the first event at Aug 15, 3:27 PM EST, 2 hours 43 minutes earlier.
Area Forecast Discussion National Weather Service Cleveland OH 427 PM EDT Thu Aug 15 2019 .SYNOPSIS... Broad low pressure over Northeast Ohio will depart to the east overnight. High pressure will expand overhead tonight then weaken on Friday. A series of low pressure systems will move east across the region this weekend into the middle part of next week. && .NEAR TERM /THROUGH FRIDAY NIGHT/... Storms flared up this afternoon where surface convergence was focused across northern Ohio. Moderate instability is in place across the area with a wave at 700mb lifting northeast. Better upper level support will depart to the northeast through about 6 PM and any additional strong storms this evening will likely be focused across far northeast portions of the area. Otherwise additional development early this evening will be focused along outflow boundaries with just scattered coverage of thunderstorms expected. Mid level lapse rates are not very favorable with the arrival of drier air aloft and will be a limiting factor as we progress through the evening. Later tonight, low level moisture will wrap back in from the west with clouds expanding overnight. A few showers are noted upstream in Michigan and although the coverage is expected to diminish with the lack of daytime heating, a low chance of showers will remain, especially near and downwind of a surface trough moving across Lake Erie. This could lead to a few showers and possibly even a thunderstorm downwind of Lake Erie during the afternoon. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/... Nearly zonal flow will persist across the lower 48 states through this forecast period with a series of shortwave troughs moving quickly east through the central Great Lakes. Will have to monitor these features in the event they shift south with threat for periods of heavy rainfall and potential for thunderstorm complex development. At this time, they remain mostly north of the forecast area. At the surface, a nearly stationary front will persist across the area through this forecast period and be a focusing mechanism for any convection that develops. Due to the frontal boundary oscillating back and forth, temperature forecasts will be a challenge this period. Front will lift north over Lake Erie by Saturday afternoon through Saturday night and then shift back south Sunday. && .LONG TERM /MONDAY THROUGH THURSDAY/... A bit of a shift will take place during this forecast period as amplification of the upper level ridge occurs over the Plains states in response to upper level trough diving into the west coast of the United States. The amplification of the ridge will cause deepening of an upper level trough over the eastern third of the lower 48 states. This will allow for a push of the stationary front south of the area Wednesday night into Thursday. Large area of high pressure will begin to build in from the north. Temperatures will be highly dependent on where the boundary lies Monday through Wednesday. Then, cold air advection will take place after Wednesday with cold front pushing southeast of the area. && .AVIATION /18Z Thursday THROUGH Tuesday/... Scattered thunderstorms are developing south of Lake Erie where convergence is focused. Thunderstorms today will be most likely at northern terminals through 21Z in Ohio and 23Z in PA. Severe winds are possible but coverage will be low so did not include in TAFs. Updates will be needed if storms approach a terminal. As the low passes to the east tonight, wrap around moisture is expected to fill in from west to east. There is high confidence in MVFR ceilings or lower with IFR also possible for a shorter window. Some reduced visibilities are also possible. Winds are out of the north along the lakeshore and south to the south of the boundary. Winds will remain light outside of thunderstorms through Friday. OUTLOOK...Non-VFR in thunderstorms possible both Friday and Saturday. && .MARINE... Lake breeze across the lakeshore will dissipate this evening and become light easterly tonight. Generally light winds can be expected through Friday night and will then become southerly. A stationary front is expected to develop across the area Saturday morning that will lift north as a warm front Saturday night and Sunday. The front will persist across the area into Monday. No headline winds are expected at this time. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && SYNOPSIS...KEC NEAR TERM...KEC SHORT TERM...Lombardy LONG TERM...Lombardy AVIATION...KEC MARINE...Lombardy
Hazardous Weather Outlook National Weather Service Cleveland OH 1034 AM EDT Thu Aug 15 2019 OHZ003-006>009-017>019-027>033-036>038-047-161445- Lucas-Wood-Ottawa-Sandusky-Erie-Hancock-Seneca-Huron-Wyandot- Crawford-Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-Holmes- Knox- 1034 AM EDT Thu Aug 15 2019 This Hazardous Weather Outlook is for north central Ohio, northeast Ohio and northwest Ohio. .DAY ONE...Today and tonight. Thunderstorms are expected to develop across the area early this afternoon and may continue into the early evening hours as they shift east. Some of the strongest storms may become severe with damaging winds the primary threat, although large hail cannot be ruled out. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. OHZ010>014-020>023-089-PAZ001>003-161445- Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Medina-Summit-Portage- Trumbull-Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford- 1034 AM EDT Thu Aug 15 2019 This Hazardous Weather Outlook is for north central Ohio, northeast Ohio and northwest Pennsylvania. .DAY ONE...Today and tonight. Thunderstorms are expected to develop across the area early this afternoon and may continue into the early evening hours as they shift east. Some of the storms may become severe with damaging winds the primary threat. Large hail, heavy rainfall, and an isolated tornado can not be ruled out. There is a moderate risk of rip currents along the Lake Erie shoreline this afternoon and evening. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. LEZ061-142>149-162>169-161445- Lake Erie open waters from Ripley to Buffalo NY- Lake Erie nearshore waters from Maumee Bay to Reno Beach OH- Lake Erie nearshore waters from Reno Beach to The Islands OH- Lake Erie nearshore waters from The Islands to Vermilion OH- Lake Erie nearshore waters from Vermilion to Avon Point OH- Lake Erie nearshore waters from Avon Point to Willowick OH- Lake Erie nearshore waters from Willowick to Geneva-on-the Lake OH- Lake Erie nearshore waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie nearshore waters from Conneaut OH to Ripley NY- Lake Erie open waters from Maumee Bay to Reno Beach OH- Lake Erie open waters from Reno Beach to The Islands OH- Lake Erie open waters from The Islands to Vermilion OH- Lake Erie open waters from Vermilion to Avon Point OH- Lake Erie open waters from Avon Point to Willowick OH- Lake Erie open waters from Willowick to Geneva-on-the-Lake OH- Lake Erie open waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie open waters from Conneaut OH to Ripley NY- 1034 AM EDT Thu Aug 15 2019 This Hazardous Weather Outlook is for Lake Erie. .DAY ONE...Today and tonight. Thunderstorms are expected to develop across the area early this afternoon and may continue into the early evening hours as they shift east. Some of the storms may become severe with damaging winds the primary threat, although large hail cannot be ruled out. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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 CLEVELAND OH
228 PM EDT THU AUG 15 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0227 PM TSTM WND DMG ROCKY RIDGE 41.53N 83.21W
08/15/2019 OTTAWA OH TRAINED SPOTTER
6 INCH DIAMETER TREE BRANCH DOWN.
&&
DKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
230 PM EDT THU AUG 15 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM TSTM WND DMG ROCKY RIDGE 41.53N 83.21W
08/15/2019 OTTAWA OH TRAINED SPOTTER
30 FT TREE DOWN ON POWER LINE.
&&
DKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
310 PM EDT THU AUG 15 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0309 PM HEAVY RAIN ROCKY RIDGE 41.53N 83.21W
08/15/2019 E2.60 INCH OTTAWA OH TRAINED SPOTTER
2.6 INCHES OF RAIN REPORTED IN ~1 HOUR.
&&
DKPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
356 PM EDT THU AUG 15 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0230 PM TSTM WND DMG 1 NW ROCKY RIDGE 41.54N 83.22W
08/15/2019 OTTAWA OH TRAINED SPOTTER
ALUMINUM HORSE TRAILER TOPPLED BY WIND.
&&
DKSpecial Weather Statement National Weather Service Cleveland OH 531 PM EDT Thu Aug 15 2019 OHZ009-010-019-152200- Huron-Erie-Lorain- 531 PM EDT Thu Aug 15 2019 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HURON...ERIE AND WEST CENTRAL LORAIN COUNTIES... At 531 PM EDT, a strong thunderstorm was located over Wakeman, or 11 miles south of Western Vermilion, moving east at 20 mph. Winds in excess of 40 mph and pea size hail are possible with this storm. Locations impacted include... Elyria, Wellington, Wakeman, Oberlin, Lagrange, South Amherst, Pittsfield, Kipton and Birmingham. If outdoors, consider seeking shelter inside a building. LAT...LON 4119 8249 4130 8249 4139 8215 4117 8208 TIME...MOT...LOC 2131Z 262DEG 19KT 4126 8239 Saunders
Special Weather Statement National Weather Service Cleveland OH 701 PM EDT Thu Aug 15 2019 OHZ003-006>008-160000- Wood-Ottawa-Sandusky-Lucas- 701 PM EDT Thu Aug 15 2019 ...A STRONG THUNDERSTORM WILL AFFECT OTTAWA...NORTHWESTERN SANDUSKY...NORTHEASTERN WOOD AND NORTH CENTRAL LUCAS COUNTIES... At 701 PM EDT, a strong thunderstorm was located over Rossford, or near Toledo, moving southeast at 20 mph. Wind gusts up to 50 mph are possible with this storm. Locations impacted include... Toledo, Perrysburg, Oregon, Rossford, Northwood, Genoa, Woodville, Elmore, Maumee, Walbridge, Pemberville, Millbury, Luckey, Rocky Ridge, Clay Center and Stony Ridge. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4155 8368 4169 8355 4153 8318 4133 8344 TIME...MOT...LOC 2301Z 317DEG 17KT 4158 8358 Lombardy
The Pittsburgh radar (KPBZ), 111 km away, was scanning. The volume nearest the first event began at 23:08 UTC.
9 thunderstorm wind, 2 hail. Local standard time, as filed.
Multiple trees were blown down about two miles west of Cochranton.
A power line was blown down on State Route 322.
There was an 81 mph wind gust measured by a trained storm spotter.
Multiple trees were blown down.
Multiple trees were snapped and uprooted.
Multiple trees were blown down along State Highway 27.
Multiple trees were blown down.
There were several trees blown down.
Several trees were uprooted.
Quarter to half dollar sized hail was reported.
Quarter sized hail was reported on Route 89 between Wattsburg and Corry.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2019Every state in 2019This day in weather historyWarnings in Pennsylvania, 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: 847501, 847502, 847510, 847504, 847505, 847506, 847507, 847508, 847509, 847499, 847500.