Scattered thunderstorms developed in a warm and humid airmass over central Pennsylvania during the afternoon of Friday, July 8. The strongest of these storms produced a wind damage report in western York County early in the afternoon.
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 CTP wrote it up.
Scattered thunderstorms developed in a warm and humid airmass over central Pennsylvania during the afternoon of Friday, July 8. The strongest of these storms produced a wind damage report in western York County early in the afternoon.
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 State College, PA wrote its last area forecast discussion before the first event at Jul 8, 7:00 AM EST, 5 hours 3 minutes earlier.
Area Forecast Discussion National Weather Service State College PA 800 AM EDT FRI JUL 8 2016 .SYNOPSIS... Very warm and muggy conditions will continue today along with the risk for showers and thunderstorms. Above normal temperatures will trend back toward seasonal normals over the weekend with a drier weather pattern forecast into early next week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... MCV over northwest PA early this morning...maintaining a decent cluster of moderate showers with embedded thunderstorms containing heavy downpours...now pushing into Warren County. Some pea sized hail possible with the strongest cells. Elsewhere...mostly clear to partly cloudy skies prevail along with areas of fog. Temps are quite warm as the 850 mb thermal ridge is lying across the region. Main forecast focus for today is on severe chances. Complicating factors include early timing of initial upper trof passage... residual cloudiness cutting down on afternoon insolation...and the intensity of storms that are able to fire in the unstable mid to late afternoon air mass. Think the HRRR idea of initiating convection after 16z over the West Central and Central Mountains and evolving into a N-S linear feature that propagates eastward to the middle to lower Susq makes sense...and SPC slight risk covers this potentiality. Temps and heat indices are lower as a result of the extensive cloud cover today...and thus will not need any heat headlines for the lower Susq for today. && .SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/... Surface cold front will shift eastward across the central Appalachians and Mid Atlantic piedmont tonight into early Saturday morning. Shower/thunderstorm threat peaks late this afternoon into early evening. Hoping for some widespread QPF of 0.25 to 0.5"...as this is the best chance for appreciable rain for the next several days upcoming...although both weekend days will feature at least isold to sct coverage. The surface pattern becomes somewhat complex on Saturday with a merger of the synoptic cold front with a prefrontal/lee- side trough. This focuses a narrow axis of higher dewpoints and modest instability from the Delmarva northward through eastern PA into upstate NY. This may favor a greater chance of rain in the morning Saturday over the far eastern zones before the front reaches the Mid Atlantic coast by the afternoon. In general, the models shift the bulk of QPF across the Northeast and New England as a breezy west wind sweeps a plume of lower PW air across central PA and drys things out. Max temps on Saturday will make another run at 90F in the lower Susquehanna Valley but HX values do not look to be an issue. && .LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/... The early weekend frontal passage will provide some relief from the hot/humid conditions on Sunday. However this will be short- lived as summertime heat/humidity likely return into the middle of next week. Added a few degrees to the composite medium range guidance blend for max/min temperatures Tue-Thu which is supported by building upper level ridge with 500mb heights reaching 588+DM. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/... Current RADAR has cluster of showers and thunderstorms moving through the Northwest mountains through the next few hours. Have VCTS at BFD due to these storms. Expect slight improvement in vsbys but still IFR and lower. Once the winds shift the vsbys and cigs will slowly improve by 15Z. By 16Z the latest near term models has a line of showers and thunderstorms moving through PA. Expect West to East timing to be 16Z to 22Z with IFR cigs and vsbys possible in TSRA. There could be a secondary line from outflow between 21Z to 00Z. Clearing skies behind the showers and TSRA will leave VFR at TAF sites to around 06Z. Expect another round of IFR cigs and vsbys overnight beginning between 06Z to 09Z, especially BFD, JST and any sites that received precipitation. OUTLOOK... Fri-Sat...Restrictions possible with a frontal system crossing the region. Sun-Tue...Mainly VFR. && .CLIMATE... While maximum temperatures will average 5 to 10 degrees above normal on Thursday and Friday, they are not expected to be near record levels. The best potential for daily records will be for very warm minimum temperatures /max-mins/. 7/8 Record Max/Min MDT: 101 in 1988/77 in 1994 IPT: 102 in 1988/72 in 1929 STC: 98 in 1988/73 in 2012 AOO: 98 in 1988/72 in 2012 BFD: 94 in 1988/66 in 1987 && .CTP WATCHES/WARNINGS/ADVISORIES... None. && SYNOPSIS...DeVoir NEAR TERM...DeVoir/Fitzgerald SHORT TERM...DeVoir LONG TERM...Steinbugl AVIATION...Ceru CLIMATE...
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE STATE COLLEGE PA 1101 AM EDT FRI JUL 8 2016 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-091515- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN- JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING- SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND- ADAMS-YORK-LANCASTER- 1101 AM EDT FRI JUL 8 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. SCATTERED SEVERE THUNDERSTORMS WITH DAMAGING WINDS 60 MPH OR GREATER ARE POSSIBLE THIS AFTERNOON AND EVENING. OUTDOOR EVENTS MAY BE DISRUPTED. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER. MONITOR LOCAL FORECASTS AT WEATHER.GOV/CTP AND FOLLOW OUR OFFICE ON SOCIAL MEDIA. MS
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
802 AM EDT FRI JUL 8 2016
PAZ004-005-010-011-081300-
MCKEAN PA-WARREN PA-CAMERON PA-ELK PA-
802 AM EDT FRI JUL 8 2016
AT 759 AM EDT...DOPPLER RADAR INDICATED A LARGE AREA OF MODERATE
SHOWERS WITH EMBEDDED THUNDERSTORMS PRODUCING HEAVY RAINFALL OVER
NORTHWEST PENNSYLVANIA. HEAVY DOWNPOURS WILL ACCOMPANY SOME OF THE
STRONGER CELLS AS THEY MOVE OVER WARREN COUNTY THROUGH 900 AM. SOME
STORMS MAY PRODUCE PEA SIZED HAIL.
LOCATIONS IMPACTED INCLUDE...
KANE...ST. MARYS...JOHNSONBURG...BRADFORD...SMETHPORT...
EAST BRANCH DAM...CROSBY...EMPORIUM...SIZERVILLE...TRUMAN...
CORYVILLE...REW...WESTLINE...BETULA...MARSHBURG...CYCLONE...
ELK RIVER...KINZUA BRIDGE STATE PARK...WILCOX AND PORT ALLEGANY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
LOCALIZED FLOODING OF POOR DRAINAGE AREAS.
LAT...LON 4200 7821 4162 7820 4154 7812 4136 7841
4146 7872 4200 7907
TIME...MOT...LOC 1159Z 240DEG 48KT 4196 7899 4151 7870
GARTNERSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 1218 PM EDT FRI JUL 8 2016 PAZ012-017>019-041-045-046-081715- SOUTHERN CENTRE PA-NORTHERN CENTRE PA-SOUTHERN LYCOMING PA- CLEARFIELD PA-NORTHERN LYCOMING PA-NORTHERN CLINTON PA- SOUTHERN CLINTON PA- 1218 PM EDT FRI JUL 8 2016 ...SPECIAL WEATHER STATEMENT... AT 1215 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR GLEN UNION...MOVING EAST AT 25 MPH. PEA SIZE HAIL AND WINDS IN EXCESS OF 30 MPH ARE POSSIBLE. LOCATIONS IMPACTED INCLUDE... JERSEY SHORE...LOCK HAVEN...LITTLE PINE STATE PARK...SNOW SHOE... MACKEYVILLE...MILL HALL...FLEMINGTON...AARONSBURG...DUNNSTOWN... GLEN UNION...SOUTH RENOVO...PINE GLEN...BLANCHARD... BALD EAGLE STATE PARK...CLARENCE...REBERSBURG...KARTHAUS... MONUMENT...LAMAR AND COGAN STATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 4137 7697 4088 7738 4111 7827 4140 7780 TIME...MOT...LOC 1615Z 261DEG 21KT 4123 7755 CR
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1254 PM EDT FRI JUL 8 2016
PAZ064-065-081800-
ADAMS PA-YORK PA-
1254 PM EDT FRI JUL 8 2016
...A STRONG THUNDERSTORM WILL AFFECT PARTS OF ADAMS AND YORK COUNTIES
UNTIL 200 PM EDT...
AT 1254 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
EAST BERLIN...MOVING EAST AT 25 MPH.
VERY HEAVY RAIN IS EXPECTED.
DIME SIZE HAIL AND WINDS IN EXCESS OF 30 MPH ARE POSSIBLE.
LOCATIONS IMPACTED INCLUDE...
DALLASTOWN...SPRY...WEIGELSTOWN...YORK...RED LION...SHREWSBURY...
YORKLYN...JACOBUS...EAST BERLIN...DOVER...SHILOH...SPRING GROVE...
NEW FREEDOM...BROGUE...GRANTLEY...TYLER RUN-QUEENS GATE...
STONYBROOK-WILSHIRE...STEWARTSTOWN...YORKANA AND CROSS ROADS.
LAT...LON 3986 7711 4004 7706 3998 7650 3996 7648
3994 7647 3992 7641 3972 7646 3972 7675
TIME...MOT...LOC 1654Z 282DEG 21KT 3994 7700
CR/RGThe Sterling radar (KLWX), 114 km away, was scanning. The volume nearest the first event began at 17:03 UTC.
1 thunderstorm wind. Local standard time, as filed.
A severe thunderstorm produced winds estimated around 60 mph and knocked down along Route 30 between Abbottstown and Thomasville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2016Every state in 2016This day in weather historyWarnings in Pennsylvania, July 2016
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: 638028.