An area of showers and thunderstorms tied to an upper level shortwave propagated westward from Ohio into Pennsylvania on the morning of the 7th. A few trees were reported down along the line as it moved through Washington county, PA.
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.
An area of showers and thunderstorms tied to an upper level shortwave propagated westward from Ohio into Pennsylvania on the morning of the 7th. A few trees were reported down along the line as it moved through Washington county, PA.
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 May 7, 3:49 AM EST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 449 AM EDT WED MAY 7 2014 .SYNOPSIS... A WARM FRONT WILL SPAWN SCATTERED SHOWERS CHANCES TODAY. VERY WARM TEMPERATURES CAN BE EXPECTED UNTIL PASSAGE OF A COLD FRONT THIS WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... UPDATE ISSUED TO ADJUST HOURLY TRENDS OF POPS BASED ON THE LATEST RADAR AND HIGH RES MDL TRENDS. PREVIOUS... AREA OF ELEVATED SHWRS AND TSTMS HAS DVLPD ACRS MID AND PARTS OF WRN OHIO AS SHRTWV PROGRESSES ACRS EWD BLD RIDGE. HAVE THUS MAINTAINED THE SHWR AND TSTM FCST...BUT HAVE ADJUSTED TIMING AND PLACEMENT FOR THE NWD ADVNG WARM FRONT TODAY. POPS SHOULD DCRS THROUGH THE AFTN FOR ALL BUT THE EXTREME NRN ZONES GIVEN PASSAGE OF THE INTIAL SPPRTG SHRTWV THROUGH THE NW FLOW OVR THE REGION...WITH CAPPING WARM ADVCTN INTO THE MID LVLS. HIGHS TDA WERE FORECAST ABOVE THE SEASONAL AVGS FOR COUNTIES S OF I 80...AND NR AVG N...USING A BLEND OF GUIDANCE. && .SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY/... A SHRTWV MOVING ALONG THE AMPLIFYING UPR RIDGE SHOULD CONT THE CHC FOR SHWRS AND TSTMS INTO TNGT FOR ZONES NORTH OF THE PA TURNPIKE. THE RIDGE IS PROJECTED TO STRENGTHEN FURTHER ON THURSDAY AS TROF EMERGES OVR THE PLNS STATES. DRY...BUT WARM WEA WL THUS PREVAIL WITH HIGHS INTO THE 80S FOR COUNTIES TO THE S OF I 80. FRIDAY ALSO IS EXPECTED TO BE A WARM DAY...ALTHOUGH HIGHS WL BE TEMPERED BY INCRSG CLOUDS AND POPS WITH THE APCH OF THE MIDWRN CDFNT. GIVEN THE STRENGTH OF THE ERN CONUS RIDGE...WOULD NOT BE SURPRISED IF FUTURE MDL RUNS SLOW THE APPRCH AND PASSAGE OF THE FRONT. FORECAST FOR FRIDAY AND SATURDAY IS THUS MAINLY OF PERSISTENCE AND CONTS TO FEATURE LIKELY POPS. && .LONG TERM /SATURDAY NIGHT THROUGH TUESDAY/... LITTLE AGREEMENT IN THE GFS AND ECMWF THROUGH THE EXTENDED FORECAST MEANS LITTLE CHANGE IN THE FORECAST AS WELL. WHILE BOTH MODELS PUSH THE COLD FRONT EAST OF THE REGION SATURDAY NIGHT...THE GFS SHOWS A MUCH MORE ACTIVE PATTERN SUNDAY THROUGH TUESDAY WHILE THE ECMWF KEEPS PRECIPITATION SUPPRESSED TO THE SOUTH. ALTHOUGH BOTH MODELS SHOW A COLD FRONT TOWARDS THE END OF THE FORECAST PERIOD...THE TIMING IS OFF BY 12-24 HOURS. HAVE STUCK PRETTY CLOSE TO THE INHERITED FORECAST...WHICH KEEPS LOW POPS IN THE FORECAST. TEMPERATURES SHOULD BE NEAR OR SLIGHTLY ABOVE NORMAL SEASONAL VALUES. && .AVIATION /09Z WEDNESDAY THROUGH SUNDAY/... A WARM FRONT WILL INITIATE SOME SCT SHWRS AND POSSIBLY SOME ISOLD TSTMS AS IT DVLPS NWD ACRS THE UPR OH REGION TDA. CONFIDENCE IS MINIMAL IN PLACEMENT...HENCE RESTRICTIONS WL BE OMITTED UNTIL SITUATION IS BTR DEFINED. LIGHT NORTH WIND WL BECOME SLY WITH PASSAGE OF THE FRONT. .OUTLOOK.../TONIGHT THROUGH SUNDAY/... A COLD FRONT WILL BRING POSSIBLE RESTRICTIONS LATER FRIDAY AND SATURDAY. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 319 AM EDT WED MAY 7 2014 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-080730- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 319 AM EDT WED MAY 7 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. 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.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
423 AM EDT WED MAY 7 2014
OHZ048-070845-
COSHOCTON OH-
423 AM EDT WED MAY 7 2014
...A THUNDERSTORM WITH HAIL WILL AFFECT NORTHERN COSHOCTON COUNTY...
AT 419 AM EDT...A THUNDERSTORM WAS LOCATED 3 MILES WEST OF
KILLBUCK...MOVING SOUTHEAST AT 25 MPH.
THIS STORM WILL PRODUCE PENNY TO NICKEL SIZE HAIL AS IT MOVES OVER
NORTHERN COSHOCTON COUNTY.
LOCATIONS IMPACTED INCLUDE...
LAYLAND... BLISSFIELD...
PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.
LAT...LON 4046 8217 4045 8173 4044 8173 4028 8182
4044 8218
15SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
600 AM EDT WED MAY 7 2014
OHZ039-040-049-071045-
CARROLL OH-HARRISON OH-TUSCARAWAS OH-
600 AM EDT WED MAY 7 2014
...A CLUSTER OF THUNDERSTORMS WITH HAIL WILL AFFECT
CARROLL...NORTHWESTERN HARRISON AND TUSCARAWAS COUNTIES...
AT 556 AM EDT...A THUNDERSTORM CLUSTER WAS LOCATED 11 MILES
NORTHEAST OF MILLERSBURG...MOVING EAST AT 40 MPH.
THIS CLUSTER OF STORMS WILL PRODUCE PENNY TO NICKEL SIZE HAIL. SOME
STRENGTHENING TO SEVERE LEVELS IS POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
SUGARCREEK... STRASBURG... BOLIVAR...
STONE CREEK... DOVER... NEW PHILADELPHIA...
MINERAL CITY... GNADENHUTTEN... UHRICHSVILLE...
MALVERN... DENNISON... SHERRODSVILLE...
PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.
LAT...LON 4047 8167 4064 8167 4065 8149 4067 8146
4066 8140 4066 8125 4070 8124 4067 8093
4038 8103 4031 8118 4028 8141 4046 8168
15SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
611 AM EDT WED MAY 7 2014
OHZ040-049-050-071045-
CARROLL OH-HARRISON OH-JEFFERSON OH-
611 AM EDT WED MAY 7 2014
...A STRONG THUNDERSTORM WILL AFFECT CENTRAL JEFFERSON...NORTHEASTERN
HARRISON AND SOUTH CENTRAL CARROLL COUNTIES...
AT 610 AM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR KILGORE...
MOVING EAST AT 25 MPH.
THIS STORM WILL PRODUCE NICKEL SIZE HAIL.
LOCATIONS IMPACTED INCLUDE...
SCIO... KILGORE... JEWETT...
BERGHOLZ... UNIONPORT... RICHMOND...
WINTERSVILLE... STEUBENVILLE...
PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.
LAT...LON 4055 8112 4055 8064 4052 8062 4050 8062
4032 8063 4037 8114SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
644 AM EDT WED MAY 7 2014
OHZ039-040-049-050-071115-
CARROLL OH-HARRISON OH-JEFFERSON OH-TUSCARAWAS OH-
644 AM EDT WED MAY 7 2014
...STRONG THUNDERSTORMS WILL AFFECT HARRISON...NORTHERN JEFFERSON...
SOUTHERN CARROLL AND SOUTHERN TUSCARAWAS COUNTIES...
AT 643 AM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 3 MILES
EAST OF CARROLLTON TO 2 MILES WEST OF UHRICHSVILLE...MOVING SOUTHEAST
AT 35 MPH.
THESE STORMS WILL PRODUCE PENNY SIZE HAIL.
LOCATIONS IMPACTED INCLUDE...
SHERRODSVILLE... GNADENHUTTEN... DELLROY...
CARROLLTON... UHRICHSVILLE... DENNISON...
MECHANICSTOWN... LEESVILLE LAKE PARK...
BOWERSTON... KILGORE... TAPPAN...
BERGHOLZ...
PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.
LAT...LON 4039 8158 4065 8102 4048 8060 4046 8060
4044 8061 4040 8061 4039 8063 4038 8062
4018 8104SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PITTSBURGH PA 714 AM EDT WED MAY 7 2014 OHZ041-050-PAZ020-021-029-WVZ001-002-071145- ALLEGHENY PA-BEAVER PA-BROOKE WV-COLUMBIANA OH-HANCOCK WV- JEFFERSON OH-WASHINGTON PA- 714 AM EDT WED MAY 7 2014 ...STRONG THUNDERSTORMS WILL AFFECT HANCOCK...NORTHEASTERN BROOKE... NORTHEASTERN JEFFERSON...NORTHWESTERN WASHINGTON...SOUTHEASTERN COLUMBIANA...SOUTHERN BEAVER AND WESTERN ALLEGHENY COUNTIES... AT 713 AM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM WINTERSVILLE TO EAST LIVERPOOL...MOVING EAST AT 40 MPH. WIND GUSTS TO 40 MPH AND PENNY SIZE HAIL ARE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... NEWELL... WINTERSVILLE... WELLSVILLE... RICHMOND... HAMMONDSVILLE... EAST LIVERPOOL... TOMLINSON RUN STATE PARK... NEW CUMBERLAND... CHESTER... NEW MANCHESTER... TORONTO... STEUBENVILLE... PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER @NWSPITTSBURGH. LAT...LON 4030 8083 4070 8066 4063 8000 4023 8018
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
737 AM EDT WED MAY 7 2014
PAZ020-021-029-031-073-075-WVZ003-004-071215-
ALLEGHENY PA-BEAVER PA-FAYETTE PA-GREENE PA-MARSHALL WV-OHIO WV-
WASHINGTON PA-WESTMORELAND PA-
737 AM EDT WED MAY 7 2014
...STRONG THUNDERSTORMS WILL AFFECT THE NORTHERN WEST VIRGINIA
PANHANDLE AND WESTERN PENNSYLVANIA...
AT 735 AM EDT...STRONG THUNDERSTORMS WERE ALONG A LINE FROM 3 MILES
NORTHWEST OF MOON TO 3 MILES NORTH OF CLAYSVILLE TO SHERRARD...MOVING
EAST AT 45 MPH.
WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS.
LOCATIONS IMPACTED INCLUDE...
VALLEY GROVE... TRIADELPHIA... MCMECHEN...
GLENDALE... BETHLEHEM... BENWOOD...
BURGETTSTOWN... AVELLA... SHERRARD...
ECONOMY BORO... MOON... CLAYSVILLE...
PLEASE REPORT SIGNIFICANT WEATHER BY CALLING...412-262-1988...POSTING
TO THE NWS PITTSBURGH FACEBOOK PAGE...OR USING TWITTER
@NWSPITTSBURGH.
LAT...LON 4010 7955 3988 7991 3993 8076 3996 8076
3998 8074 4003 8074 4016 8052 4062 8036
4057 7957 4053 7950 4053 7945 4049 7946
4047 7942The Pittsburgh radar (KPBZ), 47 km away, was scanning. The volume nearest the first event began at 12:04 UTC.
3 thunderstorm wind. Local standard time, as filed.
Emergency manager reported that a very large tree and utility wires were down.
The public reported a tree down on Route 88 near California University of Pennsylvania.
A trained spotter reported multiple trees down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2014Every state in 2014This day in weather historyWarnings in Pennsylvania, May 2014
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: 519672, 519673, 519674.