producing heavy rainfall and gusty winds of 30-40 mph. There were several reports of trees being knocked down by the 30-40 mph winds, primarily at higher elevations, due to the saturated soil.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
A strong low pressure system pushed up the Ohio Valley and crossed Pennsylvania...producing heavy rainfall and gusty winds of 30-40 mph. There were several reports of trees being knocked down by the 30-40 mph winds, primarily at higher elevations, due to the saturated soil.
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 Jun 27, 10:03 AM EST, 3 hours 14 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 1103 AM EDT SAT JUN 27 2015 .SYNOPSIS... AN UNSEASONABLY STRONG AREA OF LOW PRESSURE AND ITS ATTENDANT FRONTAL SYSTEM WILL BRING WIDESPREAD HEAVY RAINFALL TO CENTRAL PENNSYLVANIA TODAY. THE HEAVY RAINFALL COMBINED WITH VERY WET PRE-EXISTING CONDITIONS OVER THE LAST 30 DAYS WILL RESULT IN AN ELEVATED RISK FOR FLOODING IN THE NEXT 24 HOURS. A FLOOD WATCH REMAINS IN EFFECT INTO EARLY SUNDAY MORNING. SEVERE WEATHER IS ALSO POSSIBLE ACROSS SOUTH-CENTRAL PENNSYLVANIA THIS AFTERNOON. && .NEAR TERM /THROUGH TONIGHT/... 11 AM UPDATE... MINOR CHANGES MADE TO THE GRIDDED DATABASE OF TEMPS/WEATHER/WIND AND QPF. REGIONAL RADAR MOSAIC LOOP SHOWS A LARGE AREA OF MODERATE TO OCNLY HEAVY RAIN ADVANCING NE ACROSS THE CWA...WHICH AGREES WELL WITH GOING FCST AND LATEST HIGH RES MODEL GUIDANCE. HOURLY RAINFALL RATES OF0.15 TO 0.20 OF AN INCH EXPECTED TO OVERSPREAD THE SUSQ VALLEY SHORTLY...AND CONTINUE ACROSS THE CENTRAL AND WESTERN MTNS THROUGH THIS AFTERNOON. 88D STORM TOTAL QPF IS AGREEING WELL WITH OBSERVED AMOUNTS SO FAR... WHICH RANGE ANYWHERE FROM A FEW TO SVRL TENTHS OF AN INCH IN THE EAST...TO A LITTLE OVER 1 INCH ACROSS PARTS OF THE CENTRAL ...SOUTH-CENTRAL MTNS...AND LAUREL HIGHLANDS. PREVIOUS DISCUSSION BELOW... WELL-ADVERTISED HEAVY RAIN EVENT IS BEGINNING TO EVOLVE ACROSS CENTRAL PENNSYLVANIA WITH REGIONAL RADAR SHOWING A BROAD SWATH OF RAIN EXTENDING FROM THE LOWER GREAT LAKES AND UPPER OHIO VALLEY ACROSS MUCH OF PA INTO NORTHERN VA. OVERALL DID NOT MAKE TOO MANY CHANGES TO THE PREVIOUS FORECAST WITH STORM TOTAL/24-30 HOUR RAIN AMOUNTS STILL SOLIDLY BETWEEN 2-3 INCHES. A CONSENSUS OF HIGH RESOLUTION MODELS ARE SHOWING SOME LOCAL QPF MAXIMA IN THE 4-6 INCH RANGE WHICH IS NOT OUT OF THE QUESTION GIVEN THE UNSEASONABLY STRONG/AMPLIFYING UPPER LEVEL TROUGH AND IMPRESSIVE COOL SEASON DYNAMICAL FORCING...ALONG WITH VERY HIGH PW AND SOME WEAK ELEVATED INSTABILITY. THE MODEL GUIDANCE REMAINS IN VERY GOOD AGREEMENT IN TERMS OF THE MASS FIELDS INCLUDING THE TIMING AND TRACK OF THE DEEP UPPER LOW AND GRADUAL MILLER-B TYPE TRANSITION OF THE PRIMARY/OCCLUDING SURFACE LOW IN THE UPPER OH VALLEY TO A SECONDARY LOW FORMATION CLOSER TO THE NORTHERN MID ATLC/NEW ENGLAND COAST BY THE END OF THE PERIOD. OVERALL CONFIDENCE IS ABOVE AVERAGE IN SIGNIFICANT RAINFALL AMOUNTS GIVEN MAGNITUDE OF MOISTURE/FLUX ANOMALIES AND ROBUST DYNAMICAL FORCING PUSHING INTERNAL MODEL QPF AMOUNTS TO RECORD LEVELS. SWITCHING GEARS FROM EXCESSIVE RAIN TO SEVERE WX RISK...WHAT HAD INITIALLY SEEMED TO BE A LOW PROBABILITY OUTCOME HAS NOW BECOME A SERIOUS BUT CONDITIONAL THREAT...CONFINED TO A LIMITED AREA WITHIN THE WARM SECTOR OVER FAR SOUTHERN PA. SPC HAS SHIFTED THE SLGT RISK FURTHER NORTH AND CLIPPED THE FAR LOWER SUSQ VALLEY WITH AN ENHANCED RISK. HRRR/NAM SFC LI PROGS SHOW FAR SRN PA BREAKING INTO THE WARM SECTOR AND BECOMING MARGINALLY UNSTABLE WITH MODEST CAPE VALUES. VERTICAL SHEAR PROFILES ARE RATHER STRONG PARTICULARLY IN THE LOW LEVELS WHICH MAY OFFER SOMEWHAT BETTER POTENTIAL FOR AN ISOLATED/BRIEF TORNADO...WITH THE GREATEST POTENTIAL IN THE ENHANCED RISK AREA. && .SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/... SOME PCPN WILL LINGER ON SUNDAY ON THE BACKSIDE OF THE DEPARTING SYNOPTIC SCALE LOW ESPECIALLY IN THE UPSLOPE REGIONS/HIGHER TERRAIN OF THE ALLEGHENIES. QPF AMTS WILL BE ON THE LIGHT SIDE WITH LITTLE TO NO PCPN EXPECTED BY SUNDAY NIGHT AS DRIER AIR MOVES INTO THE AREA. TEMPERATURES WILL REMAIN BELOW NORMAL WITH USUALLY COLDER AREAS ALONG THE ALLEGHENY FRONT STRUGGLING TO CRACK 60F. && .LONG TERM /MONDAY THROUGH FRIDAY/... THE BROAD TROUGH WILL CONTINUE TO LINGER WELL INTO NEXT WEEK DOWNSTREAM OF A MIGRATORY AND ANOMALOUS UPPER-LEVEL ANTICYCLONE PARKED OVER THE CENTRAL GREAT BASIN AND PACIFIC NORTHWEST. A SERIES OF MID-LEVEL DISTURBANCES WILL TRANSLATE SOUTHEAST FROM THE HOT UPPER RIDGE THROUGH THE NORTHERN PLAINS...UPPER MIDWEST/OH VALLEY AND INTO THE MID ATLANTIC STATES...WITH EACH WAVE AND ACCOMPANYING WEAK FRONTAL SYSTEM PROVIDING A FOCUS FOR SHOWERS AND THUNDERSTORMS. THESE NRN STREAM SYSTEMS WILL PACK MUCH LESS OF A PUNCH COMPARED TO THE UNSEASONABLY STRONG SYSTEM IMPACTING THE AREA THIS WEEKEND...BUT NONETHELESS IT WILL PROLONG THE PERSISTENT UNSETTLED/WET PATTERN THAT WE HAVE BEEN IN FOR THE LAST 30 DAYS OR SO. TEMPERATURES WILL START OUT WELL BELOW NORMAL ON SUNDAY BEFORE TRENDING BACK TO NORMAL THROUGH THE MIDDLE OF NEXT WEEK. && .AVIATION /15Z SATURDAY THROUGH WEDNESDAY/... EXPECT WIDESPREAD IFR/LIFR CONDITIONS IN MODERATE TO HEAVY RAIN THROUGH MUCH OF THE DAY TODAY...AT ALL AIRFIELDS. TRAILING COLD/OCCLUDED FRONT WILL BEGIN TO SWING IN FROM THE SOUTHWEST TOWARD 00Z SUNDAY. WHILE THERE MAY BE A BRIEF UPTICK IN CONDITIONS AROUND 00Z...CONDITIONS MAY AGAIN DETERIORATE FURTHER TO LIFR-VLIFR SATURDAY NIGHT /ESPECIALLY AT KBFD AND KJST/ AS A POTENT AREA OF SURFACE LOW PRESSURE...AND COOLER AIR MOVES INTO THE REGION...COMBINED WITH THE MOIST AIRMASS AND LIGHT WINDS. LOW LEVEL SE FLOW INCREASES TO 50-60KTS IN THE 2-3KFT AGL LAYER TODAY...WITH LLWS LIKELY DURING MUCH OF THE DAY. OUTLOOK... SAT NIGHT...WIDESPREAD CIG/VSBY RESTRICTIONS IN R /AND ISO TSRA ACROSS THE SOUTHERN HALF OF PENN/. RAIN WILL TAPER TO SHOWERS AND AREAS OF DRIZZLE AND FOG LATE. SUN...RESTRICTIONS MAINLY NW HALF OF PA. SCT SHOWERS. MON-WED...GENERALLY VFR...BUT CHANCE OF MVFR IN SHOWERS MAINLY NW. && .CTP WATCHES/WARNINGS/ADVISORIES... FLOOD WATCH THROUGH LATE TONIGHT FOR PAZ004>006-010>012- 017>019-024>028-033>037-041-042-045-046-049>053-056>059- 063>066. && SYNOPSIS...LAMBERT/STEINBUGL NEAR TERM...LAMBERT/STEINBUGL SHORT TERM...STEINBUGL LONG TERM...STEINBUGL AVIATION...LAMBERT/GARTNER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 226 AM EDT SAT JUN 27 2015 PAZ024>028-033>036-056-057-059-063-280630- CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON- FRANKLIN-PERRY-DAUPHIN-LEBANON-CUMBERLAND- 226 AM EDT SAT JUN 27 2015 ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. IN ADDITION TO THE FLOOD WATCH...SEVERE THUNDERSTORMS WITH DAMAGING WINDS ARE POSSIBLE THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. PAZ064>066-280630- ADAMS-YORK-LANCASTER- 226 AM EDT SAT JUN 27 2015 ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. IN ADDITION TO THE FLOOD WATCH...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS WITH DAMAGING WINDS THIS AFTERNOON AND EVENING. A BRIEF...ISOLATED TORNADO IS ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. PAZ004>006-010>012-017>019-037-041-042-045-046-049>053-058-280630- WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD- NORTHERN CENTRE-SOUTHERN CENTRE-TIOGA-NORTHERN LYCOMING-SULLIVAN- SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR- NORTHUMBERLAND-COLUMBIA-SCHUYLKILL- 226 AM EDT SAT JUN 27 2015 ...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. FLOOD WATCH. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
4 strong wind. Local standard time, as filed.
Strong winds around 40 mph knocked down a tree in saturated soils onto wires in Bedford Twp.
Strong winds around 40 mph knocked down trees in saturated soils around Somerset and Hooversville.
Strong winds around 40 mph knocked down trees in saturated soils in East Providence Twp.
Strong winds around 40 mph knocked down trees in saturated soils in Muncy Valley...closing a portion of Route 220.
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, June 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: 574438, 574439, 574441, 574444.