A front, which has been lingering north of our area, marched south on July 6th and brought damaging storms and widespread flooding. Sufficiently strong mid-level flow supported damaging wind in some cases.
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 PBZ wrote it up.
A front, which has been lingering north of our area, marched south on July 6th and brought damaging storms and widespread flooding. Sufficiently strong mid-level flow supported damaging wind in some cases. However, the main impacts were from flash flooding. This was supported by the presence of anomalously high precipitable water values, deep warm cloud depths, and sufficient instability and lift.
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 Jul 6, 2:39 PM EST, 24 minutes earlier.
Area Forecast Discussion
National Weather Service Pittsburgh PA
339 PM EDT Sat Jul 6 2019
.SYNOPSIS...
Thunderstorms producing heavy rainfall and some gusty wind can be
expected into tonight in a warm, humid air mass. A cold front
will drop across the region tonight and into Sunday, bringing
slightly drier air and decreasing rain chances.
&&
.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
Showers and thunderstorms have become fairly widespread in the warm
and humid air mass this afternoon. Some modest support is being
provided by the approaching cold front as well as some weak
divergence aloft provided by right entrance region jet dynamics.
Increased mid-level flow has allowed for faster storm motions thus
far, keeping rainfall amounts in check for the most part. More
east/west aligned flow may set up over southern portions of the flash
flood watch over the next few hours, which may yet produce a few
instances of training storms and excessive rainfall. A generally
isolated severe risk will continue as well, with gusty winds provided
by spotty downbursts.
The front will meander through the region tonight, ending up in the
vicinity of the Mason-Dixon Line by 12Z. Expect storm coverage to
diurnally decrease this evening/overnight, but the presence of the
boundary and moisture should allow for at least scattered showers
during the predawn hours. Warm and muggy conditions will continue,
with only modestly cooler/drier air behind the front.
&&
.SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/...
The front will likely hang up over northern West Virginia on Sunday,
with a weak wave of low pressure riding eastward along it. Will keep
mostly chance PoPs in the forecast, with a north-to-south gradient.
Thinking right now is that the deepest moisture will get shunted off
to the south and east, lessening the threat of flash flooding. This
will have to be monitored though as areas in northern West Virginia
may still be susceptible.
High pressure building southward across the Great Lakes will finally
push the front mostly to the south by Monday. However, low-level
moist flow into the ridges may continue to produce some showers and a
few thunderstorms during the afternoon. Areas from Pittsburgh to the
north and west should remain dry. Temperatures will be seasonable,
with less oppressive humidity by Monday.
&&
.LONG TERM /TUESDAY THROUGH SATURDAY/...
High pressure will continue dry weather on Tuesday. Rain chances
return by Wednesday, and become more widespread by Thursday, as
shortwave energy arrives from the Great Lakes. A frontal passage on
Thursday will be followed by surface high pressure and flattening
ridging Friday and Saturday, with drier weather expected.
Temperatures will warm above normal during the midweek period under
shortwave ridging, before moderating back toward normal by the end of
the week.
&&
.AVIATION /19Z SATURDAY THROUGH THURSDAY/...
Showers and thunderstorm coverage, and associated restrictions, are
expected to increase this afternoon with the encroachment of a cold
front. Expect further deterioration tonight with boundary saturation
and frontal passage. While some guidance is indicating IFR
restrictions by sunrise, which is definitely possible and may end up
being widespread, have elected to keep all sites but HLG/ZZV at MVFR
restrictions around sunrise pending how much rainfall occurs at
individual terminals this afternoon/evening. Whatever restrictions do
develop overnight should begin to ease by late Sunday morning.
.Outlook...
Restrictions should end fm N-S Sunday with building high pres,
although showers will still be possible at all terminals except
FKL/DUJ on Sunday. Widespread restriction potential returns late Wed
with a approaching cdfnt.
&&
.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...Flash Flood Watch until 2 AM EDT Sunday for MDZ001.
OH...None.
PA...Flash Flood Watch until 10 PM EDT this evening for PAZ007>009-
013>016-020>023-029-073-074.
Flash Flood Watch until 2 AM EDT Sunday for PAZ031-075-076.
WV...Flash Flood Watch until 2 AM EDT Sunday for WVZ012-021-509>514.
&&Hazardous Weather Outlook National Weather Service Pittsburgh PA 1139 AM EDT Sat Jul 6 2019 MDZ001-PAZ031-075-076-WVZ012-021-509>514-071545- Garrett-Greene-Fayette-Fayette Ridges-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Eastern Preston-Western Tucker-Eastern Tucker- 1139 AM EDT Sat Jul 6 2019 ...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... This Hazardous Weather Outlook is for western Maryland, southwest Pennsylvania and northern West Virginia. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. PAZ007>009-013>016-020>023-029-073-074-071545- Mercer-Venango-Forest-Lawrence-Butler-Clarion-Jefferson PA-Beaver- Allegheny-Armstrong-Indiana-Washington-Westmoreland- Westmoreland Ridges- 1139 AM EDT Sat Jul 6 2019 ...FLASH FLOOD WATCH IN EFFECT UNTIL 10 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northwest Pennsylvania, southwest Pennsylvania, west central Pennsylvania and western Pennsylvania. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Flash Flood Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. OHZ039>041-048>050-057>059-068-069-WVZ001>004-071545- Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Hancock-Brooke-Ohio-Marshall- 1139 AM EDT Sat Jul 6 2019 This Hazardous Weather Outlook is for east central Ohio, northern West Virginia and northern panhandle of West Virginia. .DAY ONE...This afternoon and tonight. Localized flash flooding is possible in thunderstorms. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
309 PM EDT SAT JUL 06 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0231 PM TSTM WND DMG SUNNYSIDE 40.97N 80.41W
07/06/2019 LAWRENCE PA 911 CALL CENTER
TREE ONTO A HOUSE ON MT JACKSON RD
&&
EVENT NUMBER PBZ1902553
98PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
327 PM EDT SAT JUL 06 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0320 PM TSTM WND DMG 4 ENE EASTVALE 40.78N 80.24W
07/06/2019 BEAVER PA FIRE DEPT/RESCUE
POWER LINES DOWN
&&
EVENT NUMBER PBZ1902554
98Special Weather Statement
National Weather Service Pittsburgh PA
331 PM EDT Sat Jul 6 2019
PAZ014-021-022-073-062000-
Armstrong-Butler-Westmoreland-Allegheny-
331 PM EDT Sat Jul 6 2019
...AN AREA OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL...
GUSTY WIND AND HEAVY RAIN WILL AFFECT SOUTHEASTERN BUTLER...
NORTHEASTERN ALLEGHENY...NORTH CENTRAL WESTMORELAND AND ARMSTRONG
COUNTIES...
At 331 PM EDT, strong thunderstorms were clustered over Freeport, or
9 miles northwest of Vandergrift, moving east at 40 mph.
Wind gusts up to 45 mph and small hail are possible with this storm.
Locations impacted include...
Vandergrift... Kittanning...
Lower Burrell... Harrison Township...
Natrona Heights... Ford City...
Leechburg... Sarver...
Freeport... West Kittanning...
North Apollo... West Leechburg...
Torrential rainfall also is occurring with this storm and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
Campers should consider seeking sturdy shelter until this storm
passes.
LAT...LON 4077 7922 4064 7935 4056 7972 4088 7981
4098 7926 4087 7921
TIME...MOT...LOC 1931Z 257DEG 33KT 4071 7966Special Weather Statement National Weather Service Pittsburgh PA 346 PM EDT Sat Jul 6 2019 PAZ014-020>023-073-062030- Armstrong-Butler-Westmoreland-Beaver-Allegheny-Indiana- 346 PM EDT Sat Jul 6 2019 ...A LINE OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WIND AND HEAVY RAIN WILL AFFECT CENTRAL BEAVER...SOUTHERN INDIANA...SOUTHERN BUTLER...ALLEGHENY...NORTHWESTERN WESTMORELAND AND SOUTHWESTERN ARMSTRONG COUNTIES... At 345 PM EDT, radar indicated strong thunderstorms were located along a line extending from near Ford City to near Aliquippa. Movement was southeast at 20 mph. Wind gusts up to 45 mph are possible with these storms. Locations impacted include... Pittsburgh... Penn Hills... Mount Lebanon... Ross Township... McCandless Township... Monroeville... Cranberry... Moon Township... Franklin Park... Aliquippa... Monaca... Vandergrift... This includes the following highways... Pennsylvania Turnpike between mile markers 28 and 58. Interstate 79 in Pennsylvania between mile markers 59 and 79. Interstate 376 in Pennsylvania between mile markers 40 and 49, and between mile markers 64 and 84. Torrential rainfall also is occurring with these storms and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4051 7893 4037 8003 4066 8046 4074 7953 TIME...MOT...LOC 1945Z 297DEG 16KT 4070 7955 4064 8029
Special Weather Statement
National Weather Service Pittsburgh PA
348 PM EDT Sat Jul 6 2019
OHZ050-WVZ001-002-062030-
Jefferson-Brooke-Hancock-
348 PM EDT Sat Jul 6 2019
...AN AREA OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WIND
WILL AFFECT NORTHERN JEFFERSON...NORTHEASTERN BROOKE AND SOUTHERN
HANCOCK COUNTIES...
At 348 PM EDT, strong thunderstorms were clustered 9 miles west of
New Cumberland, or 10 miles southwest of Wellsville, moving southeast
at 25 mph.
Wind gusts up to 45 mph are possible with this storm.
Locations impacted include...
Weirton... Steubenville...
Wellsburg... Toronto...
Wintersville... Mingo Junction...
Follansbee... Hooverson Heights...
New Cumberland... Franklin...
Richmond... New Manchester...
LAT...LON 4058 8083 4052 8052 4032 8052 4026 8056
4046 8090
TIME...MOT...LOC 1948Z 294DEG 20KT 4050 8079PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
352 PM EDT SAT JUL 06 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0311 PM TSTM WND DMG DARLINGTON 40.81N 80.42W
07/06/2019 BEAVER PA 911 CALL CENTER
TREES DOWN
0320 PM TSTM WND DMG 1 SW WEST MAYFIELD 40.77N 80.35W
07/06/2019 BEAVER PA 911 CALL CENTER
TREES DOWN
&&
EVENT NUMBER PBZ1902555
EVENT NUMBER PBZ1902556
98The Pittsburgh radar (KPBZ), 42 km away, was scanning. The volume nearest the first event began at 20:03 UTC.
3 thunderstorm wind, 3 flash flood, 1 heavy rain. Local standard time, as filed.
Law Enforcement reported trees down on State Route 213.
The local emergency manager reported trees down.
The local emergency manager reported power poles down.
Report of County Road 287 flooded in Conesville via social media.
Local law enforcement reported County Road 16 through Adam Mills was closed due to flooding. The roadway was completely underwater.
Local citizens reported water was entering barns, and the Little Wakatomika Creek was running over Township Road 18.
A citizen reported 1.81 inches of rain.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2019Every state in 2019This day in weather historyWarnings in Ohio, July 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: 846034, 846035, 846036, 846028, 846029, 846030, 846033.