1 flash flood, as filed by the National Weather Service.
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 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 16, 1:09 PM EST, 7 hours 21 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 209 PM EDT SAT JUL 16 2005 .SHORT TERM (TONIGHT THROUGH SUNDAY)... THE DEEP TROPICAL AIRMASS IS FIRMLY IN PLACE AND WILL REMAIN THROUGH MONDAY AT LEAST. WITH PWATS APPROACHING 2...SOME 1-3 STD DEV ABOVE NORMAL...DIURNAL CONVECTION WILL REMAIN A THREAT...DWINDLING IN THE EVENING. WE CONTINUE WITH WEAK SHEAR SO ANY SEVERE...IF IT OCCURS...WILL BE FROM THE TALLER PULSE STORMS COLLAPSING HERE AND THERE. RADAR DOES SHOW SOME TOPS IN THE 45-50K FOOT RANGE...SO HAVE TO WEARY. BUT AS YET...NO ELEVATED CORES BEING OBSERVED. THE BULK OF THE ACTIVITY WILL BE GARDEN VARIETY TROPICAL DOWNPOURS. BIGGEST THREAT WILL BE LOCALIZED FLOODING FROM SLOW MOVING STORMS. ACTIVITY OVER SERN ZONES ESPECIALLY IS SLOW MOVING. HAVE ISSUED AN URBAN AND SMALL STREAM FLOODING STATEMENT THERE...BUT MAY NEED MORE IF CONVECTION PERSISTS. && .LONG TERM (SUNDAY NIGHT THROUGH SATURDAY)... TROPICAL MOISTURE WILL REMAIN IN PLACE LATE SUNDAY INTO TUESDAY. SOME CHC OF SHOWERS AND STORMS SUNDAY NIGHT INTO MONDAY...BUT THINK CHC WILL BE SLIGHTLY LOWER THAN TODAY AND SUNDAY. RATHER STRONG COLD FRONT MOVES IN TUE...WITH ABNORMALLY DRY AIR TO FOLLOW...WILL BE ON EDGE OF COOLER AIR...BUT IT SHOULD FEEL DECENT AFTER A WEEK OF 70 PLUS DEWPOINTS. SOME CHC...SEE SPC OUTLOOK...FOR STORMS TO DROP SE INTO THE NW MTS MONDAY NIGHT. HOWEVER...THINK BETTER CHC FOR MOST TO SEE SOME ACTIVITY ON TUE. NICE FOR WED INTO THU. DID GO HPC LOW POPS FOR THURSDAY NIGHT INTO FRIDAY EVENING...FOR SOME SHOWERS AND STORMS...AS NEXT FRONT MOVES IN. LOOKS LIKE BULK OF COLD AIR REMAINS WELL TO THE NORTH...AS WE HEAD INTO WHAT IS NORMALLY THE HOTTEST PART OF THE SUMMER. MOST AREA HAVE SEEN SOME RAIN LATELY...BEEN HARDER TO GET MUCH IN THE STATE COLLEGE AREA. NO SHORTAGE OF TROPICAL SYSTEMS THIS SEASON. && .AVIATION... PATTERN CONTINUES TO BE DOMINATED BY THIS DIURNAL CYCLE OF LOW CLOUDS AND HAZE/FOG EARLY IN THE DAY..SLOWLY LIFTING TO A HAZY HUMID AFTERNOON DOTTED WITH CONVECTION...THAT SLOWLY DIES OFF IN THE EVENING...TO MAKE WAY ONCE AGAIN FOR THE CLOUDS FOG AND HAZE. THIS PATTERN WILL CONTINUE INTO AT LEAST TUESDAY WHEN A COLD FRONT IS EXPECTED TO BRING A CHANGE. UNTIL THEN...MAINLY HIGH MVFR OR VFR IN THE AFTERNOON WITH HAZE AND SCATTERED SHOWERS AND STORMS. THE CONVECTION WILL BRING LOCALLY LOWER CONDITIONS. CONDITIONS FADE AFTER DARK TO MVFR VIS EARLY..THEN IFR/LOW MVFR CIG/VIS AFTER MIDNIGHT...THEN WE DO IT ALL OVER AGAIN MONDAY. && .CTP WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...LACORTE LONG TERM...MARTIN AVIATION...LACORTE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE STATE COLLEGE PA 529 AM EDT SAT JUL 16 2005 PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053- 056>059-063>066-170929- ADAMS PA-BEDFORD PA-BLAIR PA-CAMBRIA PA-CAMERON PA-CLEARFIELD PA- COLUMBIA PA-CUMBERLAND PA-DAUPHIN PA-ELK PA-FRANKLIN PA-FULTON PA- HUNTINGDON PA-JUNIATA PA-LANCASTER PA-LEBANON PA-MCKEAN PA- MIFFLIN PA-MONTOUR PA-NORTHERN CENTRE PA-NORTHERN CLINTON PA- NORTHERN LYCOMING PA-NORTHUMBERLAND PA-PERRY PA-POTTER PA- SCHUYLKILL PA-SNYDER PA-SOMERSET PA-SOUTHERN CENTRE PA- SOUTHERN CLINTON PA-SOUTHERN LYCOMING PA-SULLIVAN PA-TIOGA PA- UNION PA-WARREN PA-YORK PA- 529 AM EDT SAT JUL 16 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA. .DAY ONE...TODAY: WARM AND HUMID AIR...COMBINED WITH A DISTURBANCE IN THE UPPER ATMOSPHERE SITUATED OVER THE SUSQUEHANNA VALLEY EARLY THIS MORNING...WILL TRIGGER SHOWERS AND THUNDERSTORMS TODAY. THE GREATEST CONCENTRATION OF SHOWERS AND STORMS WILL BE FROM THE SUSQUEHANNA VALLEY EAST...AND ALSO ACROSS THE WESTERN MOUNTAINS OF PENNSYLVANIA. LOCALLY HEAVY RAINFALL OF OVER AN INCH IN ONE HOUR IS POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY: THE TROPICAL AIRMASS WILL BRING MORE SCATTERED THUNDERSTORMS ON SUNDAY AND MONDAY...MAINLY DURING THE MID TO LATE AFTERNOON HOURS. A FEW OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF DUMPING LOCALLY HEAVY RAINFALL WHILE PRODUCING BRIEF WIND GUSTS BETWEEN 40 AND 50 MPH. A COLD FRONT WILL PUSH EAST ACROSS THE STATE ON TUESDAY. AT PRESENT THE FRONT WILL CENTRAL AND EASTERN PARTS OF THE STATE THE AFTERNOON HOURS. THIS WILL BE THE REGION MOST LIKELY TO RECEIVE POTENTIALLY STRONG WIND GUSTS AND LOCALLY HEAVY RAINFALL. LAMBERT
The Sterling radar (KLWX), 93 km away, was scanning. The volume nearest the first event began at 01:27 UTC.
1 flash flood. Local standard time, as filed.
Thunderstorms produced heavy rain and flash flooding in Franklin County. Several roads were closed in the Greencastle and Upton areas beginning around 20:30 EST. Additional flooding included a stream overflowing onto a bridge in Chambersburg.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2005Every state in 2005This day in weather historyWarnings in Pennsylvania, July 2005
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: 5464675.