Showers and a few thunderstorms developed in the warm, moist, airmass out ahead of a surface boundary late on the 19th. A few reports of downed trees were reported, mainly where the strongest cells were located over Venango and Forest counties in Pennsylvania.
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.
Showers and a few thunderstorms developed in the warm, moist, airmass out ahead of a surface boundary late on the 19th. A few reports of downed trees were reported, mainly where the strongest cells were located over Venango and Forest counties in Pennsylvania.
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 19, 4:52 PM EST, 1 hour 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 552 PM EDT SUN JUL 19 2015 .SYNOPSIS... SHOWERS AND THUNDERSTORMS WILL ACCOMPANY A COLD FRONTAL PASSAGE TONIGHT. THE NEW WORK WEEK WILL START MAINLY DRY AND SLIGHTLY COOLER. && .NEAR TERM /UNTIL 6 AM MONDAY MORNING/... CONVECTIVE COMPLEX CONTINUES TO MOVES EASTWARD ACROSS OHIO THIS EVENING. THIS WAS WELL FORECAST BY THE HRRR...WHICH SUGGESTED IT WOULD WEAKEN AS IT MOVES ACROSS OUR FORECAST AREA. THIS IS IN PART DUE TO WARM AIR ALOFT...AT 500MB. STILL A MARGINAL THREAT FOR SEVERE WIND GUSTS IF THE INDIVIDUAL CELLS CAN GET A BIT MORE ACCELERATION. HOWEVER...THE BETTER CHANCE FOR SEVERE STORMS WILL BE FURTHER NORTH WHERE SHEAR WILL BE 30-35 KNOTS. SPC HAS ISSUED A SEVERE THUNDERSTORM WATCH...MAINLY FOR THE NORTH AS CONVECTION DEVELOPS IN THE HIGH CAPE...MODERATE SHEAR ENVIRONMENT. COLD FRONT WILL BE SWEEPING THROUGH FROM THE NORTH TONIGHT. FRONT SHOULD MAKE IT THROUGH PIT AFTER MIDNIGHT BUT LIKELY NOT MUCH FURTHER AS IT BECOMES PARALLEL TO MIDLEVEL FLOW...AND EXPECT IT TO STALL OUT NEAR THE MASON/DIXON LINE BY MORNING. BY THIS POINT ONLY A FEW SHRA WILL LINGER ACROSS THE SOUTH. LOW CLOUDS AND PATCHY FOG MAY HANG AROUND FOR A TIME BEHIND THE BOUNDARY AS WELL...ESPECIALLY IN LOCATIONS THAT RECEIVE HEAVIER RAIN. NOT MAKING MAJOR CHANGES TO LOW TEMPS. ANOTHER ESPECIALLY WARM AND MUGGY NIGHT IS EXPECTED FOR MUCH OF THE AREA. && .SHORT TERM /6 AM MONDAY MORNING THROUGH WEDNESDAY/... WHILE A FEW SHOWERS MAY LINGER OVER OUR SOUTHEAST...THE NEW MODEL GUIDANCE SUGGESTS THAT THE BULK OF THE CONVECTIVE ACTIVITY WILL DIMINISH BY MONDAY MORNING WITH THE PASSAGE OF A WEAK BOUNDARY AND SHORTWAVE. THIS LOOKS TO KEEP MOST OF THE REGION DRY THROUGH THE AFTERNOON AT THIS TIME...SO POPS WERE DROPPED UNTIL LATER MONDAY NIGHT/TUESDAY MORNING AS THE STRONGER FRONT APPROACHES. THE OVERNIGHT BOUNDARY WILL DO LITTLE TO CHANGE THE AIRMASS OVER THE REGION ON MONDAY...BUT A 5 DEGREE DROP IN DEWPOINTS MAY MAKE IT FEEL A TAD DRIER. TEMPS WERE KEPT AT A BLEND OF MAV/MET VALUES. UPPER TROUGH WILL DEEPEN...PIVOTING A MORE NOTABLE COLD FRONT ACROSS THE REGION TUESDAY. AT THIS TIME...THE GUIDANCE DOES HAVE THIS BOUNDARY VERY CLOSE TO OUR FORECAST AREA BY MORNING...WHICH COULD LIMIT THE STRENGTH OF ANY CONVECTION WITH MINIMAL HEATING AND DESTABILIZATION AHEAD OF IT. REGARDLESS...CHANCE POPS WERE MAINTAINED...BUT ADJUSTED FOR TIMING TUESDAY...WITH THE FRONT EXPECTED TO BE EAST OF OUR RIDGE COUNTIES BY NIGHTFALL. A SURFACE RIDGE WILL BUILD EASTWARD FOR WEDNESDAY. EXPECT LESS HUMIDITY AND TEMPERATURES SLIGHTLY COOLER THAN NORMAL. && .LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... DRIER AND MORE SEASONABLE AIR SETTLES IN FOR THE REST OF THE WEEK. HOWEVER...RIDGING LOOKS TO REBOUND IN THE MID-LEVELS OVER THE MISSISSIPPI VALLEY BY THE WEEKEND. THIS LOOKS TO FORM A BUBBLE OF MUCH HOTTER AND MORE HUMID AIR OVER THE CENTRAL PORTION OF THE COUNTRY THAT IS SET TO MEANDER EASTWARD INTO NEXT WEEKEND. THIS MEANS TEMPERATURES HEAD BACK TOWARD 90F BY THE WEEKEND...WITH MUCH MORE HUMID CONDITIONS...AND A RESUMPTION OF CHANCES OF SHOWERS AND THUNDERSTORMS. && .AVIATION /22Z SUNDAY THROUGH FRIDAY/... VFR CONDITIONS WILL CONTINUE FOR MOST OF THE AFTERNOON...WITH SOME SPOTTY MVFR CIGS LINGERING FOR AN HOUR OR SO. EXPECTING SOME RESTRICTIONS FROM WEST TO EAST STARTING BY 22/23Z...AS A CONVECTIVE COMPLEX IS EXPECTED TO ARRIVE AHEAD OF A COLD FRONT. HANDLING WITH TEMPO MVFR TSRA FOR NOW...BUT A BRIEF DROP TO IFR IS CERTAINLY POSSIBLE AT MOST TERMINALS BETWEEN 23Z AND 05Z. TSRA SHOULD BEGIN TO WANE AFTER THAT POINT...AND A COLD FRONT WILL SLOWLY SINK THROUGH THE AREA FROM THE NORTH. MVFR CIG/VIS WILL LINGER FOR A TIME BEHIND THE FRONT...ESPECIALLY IN AREAS THAT RECEIVE RAIN. IFR IS MOST POSSIBLE AT FKL/DUJ. THE FRONT WILL EVENTUALLY STALL NEAR THE MASON/DIXON LINE. FOG AND LOW CLOUDS WILL BEGIN TO BREAK BY 14Z...WITH VFR CONDITIONS DEVELOPING AT MOST SITES BY MIDDAY. CL OUTLOOK...SUNDAY NIGHT THROUGH THURSDAY... RESTRICTIONS CHANCES WILL INCREASE AGAIN WITH THE APPROACH AND PASSAGE OF LOW PRESSURE ON MONDAY NIGHT AND TUESDAY. GENERAL VFR IS ANTICIPATED FOR THE LATTER HALF OF THE WEEK. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 323 PM EDT SUN JUL 19 2015 OHZ039>041-048>050-057>059-PAZ007>009-013>016-020>023-029-073-074- WVZ001>003-201930- TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH- MUSKINGUM-GUERNSEY-BELMONT-MERCER-VENANGO-FOREST-LAWRENCE-BUTLER- CLARION-JEFFERSON PA-BEAVER-ALLEGHENY-ARMSTRONG-INDIANA-WASHINGTON- WESTMORELAND-WESTMORELAND RIDGES-HANCOCK-BROOKE-OHIO- 323 PM EDT SUN JUL 19 2015 ...SEVERE THUNDERSTORM WATCH 443 IN EFFECT UNTIL 11 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA AND NORTHERN PANHANDLE OF 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. SEVERE THUNDERSTORM WATCH. .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-OHZ068-069-PAZ031-075-076-WVZ004-012-021>023-041-201930- GARRETT-NOBLE-MONROE-GREENE-FAYETTE-FAYETTE RIDGES-MARSHALL-WETZEL- MARION-MONONGALIA-PRESTON-TUCKER- 323 PM EDT SUN JUL 19 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...SOUTHWEST PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...THIS AFTERNOON 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.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
430 PM EDT SUN JUL 19 2015
OHZ057-192115-
MUSKINGUM-
430 PM EDT SUN JUL 19 2015
...A STRONG THUNDERSTORM WILL AFFECT MUSKINGUM COUNTY...
AT 429 PM EDT...A STRONG THUNDERSTORM WAS NEAR HARBOR HILLS...OR NEAR
HEATH...MOVING EAST AT 30 MPH.
WIND GUSTS OF 45 TO 55 MPH ARE POSSIBLE WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
ZANESVILLE...SOUTH ZANESVILLE...NORTH ZANESVILLE...DRESDEN...
FRAZEYSBURG...PHILO...PLEASANT GROVE...GRATIOT...FULTONHAM...EAST
FULTONHAM...DRAKE...CANNELVILLE...DUNCAN FALLS AND DILLON STATE PARK.
THIS INCLUDES INTERSTATE 70 IN OHIO NEAR MILE MARKER 143...AND
BETWEEN MILE
MARKERS 145 AND 161.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE
LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 3995 8223 3995 8220 4017 8219 4016 8190
3976 8187 3977 8207 3982 8208 3982 8217
3991 8216 3991 8223
TIME...MOT...LOC 2029Z 268DEG 25KT 3997 8236
33SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
514 PM EDT SUN JUL 19 2015
OHZ057-058-068-192145-
MUSKINGUM-GUERNSEY-NOBLE-
514 PM EDT SUN JUL 19 2015
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT WESTERN NOBLE...EASTERN
MUSKINGUM AND WESTERN GUERNSEY COUNTIES...
AT 514 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM 6 MILES WEST OF NEW CONCORD TO MCCONNELSVILLE.
MOVEMENT WAS EAST AT 20 MPH.
WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
CAMBRIDGE...CALDWELL...NEW CONCORD...BYESVILLE...DUDLEY...PHILO...
PLEASANT CITY...CUMBERLAND...BELLE VALLEY...SARAHSVILLE...DEXTER
CITY...ADAMSVILLE...NORWICH...CHANDLERSVILLE...RURALDALE...HIGH
HILL...OTSEGO...BRIDGEVILLE...DUNCAN FALLS AND BODEN.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 70 IN OHIO BETWEEN MILE MARKERS 159 AND 184.
INTERSTATE 77 IN OHIO BETWEEN MILE MARKERS 18 AND 57.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
LAT...LON 4020 8149 3965 8146 3964 8147 3958 8147
3959 8159 3966 8159 3967 8164 3975 8164
3977 8192 3993 8193 3993 8194 3994 8193
4008 8194
TIME...MOT...LOC 2114Z 263DEG 18KT 4002 8185 3967 8183
33SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 544 PM EDT SUN JUL 19 2015 OHZ058-059-068-069-192215- GUERNSEY-MONROE-NOBLE-BELMONT- 544 PM EDT SUN JUL 19 2015 ...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN NOBLE... SOUTHEASTERN GUERNSEY...NORTHWESTERN MONROE AND SOUTHWESTERN BELMONT COUNTIES... AT 544 PM EDT...A STRONG THUNDERSTORM WAS NEAR BYESVILLE...OR 9 MILES NORTH OF CALDWELL...MOVING EAST AT 25 MPH. WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... CAMBRIDGE...BARNESVILLE...WOODSFIELD...BYESVILLE...QUAKER CITY... SENECAVILLE...PLEASANT CITY...LORE CITY...SUMMERFIELD...BELLE VALLEY...LEWISVILLE...SARAHSVILLE...SALESVILLE...SOMERTON... FAIRVIEW...STAFFORD...BATESVILLE...MILTONSBURG...SENECA LAKE PARK AND WOLF RUN STATE PARK. THIS INCLUDES THE FOLLOWING HIGHWAYS... INTERSTATE 70 IN OHIO BETWEEN MILE MARKERS 179 AND 184...AND BETWEEN MILE MARKERS 198 AND 204. INTERSTATE 77 IN OHIO BETWEEN MILE MARKERS 28 AND 44. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. LAT...LON 3978 8159 4000 8159 4008 8112 3966 8112 TIME...MOT...LOC 2144Z 269DEG 23KT 3988 8150 33
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
630 PM EDT SUN JUL 19 2015
PAZ008-009-192315-
VENANGO-FOREST-
630 PM EDT SUN JUL 19 2015
...A LINE OF THUNDERSTORMS WILL AFFECT NORTHERN VENANGO AND NORTHERN
FOREST COUNTIES...
AT 629 PM EDT...RADAR INDICATED THUNDERSTORMS ALONG A LINE EXTENDING
FROM TITUSVILLE TO 7 MILES SOUTHEAST OF MEADVILLE. MOVEMENT WAS EAST
AT 40 MPH.
WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
TIONESTA...PLEASANTVILLE...KELLETTVILLE...WEST HICKORY...EAST
HICKORY...STARR AND OIL CREEK STATE PARK.
HEAVY RAINFALL MAY ALSO OCCUR AS THESE STORMS TRAIN OVER THE SAME
AREA. LOCALIZED FLOODING IS POSSIBLE. DO NOT DRIVE YOUR VEHICLE
THROUGH FLOODED ROADS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT FOR
NORTHWESTERN PENNSYLVANIA.
LAT...LON 4159 7896 4146 7949 4153 7994 4160 7983
4162 7983 4162 7895
TIME...MOT...LOC 2229Z 278DEG 35KT 4164 7969 4158 8004
15The Pittsburgh radar (KPBZ), 126 km away, was scanning. The volume nearest the first event began at 23:02 UTC.
6 thunderstorm wind. Local standard time, as filed.
Department of highways reported trees down on State Route 62.
County official reported multiple trees and power lines down in northern Venango county near Cherrytree.
County official reported multiple trees and power lines down near Pleasantville.
Trained spotter reported multiple trees down on Blue Jay Road between routes 66 and 666.
Emergency manager reported trees down along State Route 66.
Department of highways reported trees down on state route 36.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2015Every state in 2015This day in weather historyWarnings in Pennsylvania, July 2015
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: 594625, 594629, 594630, 594626, 594628, 594661.