1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 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 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 25, 12:25 PM EST, 5 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 125 PM EDT WED JUL 25 2001 ...WORK ZONES...ZONES ASAP... ...CHANGES... WILL KEEP FCST FORECAST CLOSE TO WHAT WE HAVE NOW. WILL KEEP CHC SUNDAY AND MONDAY...BUT TAKE OUT FOR TUE...AND KEEP DRY FOR WED. ...DISC... ...SHORT TERM... EDGE OF DRIER AIR INTO N C PA...WITH HIGH DEWPOINTS FROM ABOUT I-80 SOUTHWARD. HEATING OF THE DAY ALLOWING SC TO BURN OFF NORTH...AND WARM...UNSTABLE AIR TO PUSH BACK TO THE N. SHOWERS AND STORMS ALREADY BREAKING OUT ACROSS S PA...ALTHOUGH MAIN CLUSTER FURTHER WEST IN OH. THIS CLUSTER NOT REALLY THE MAIN AREA. THIS IS FURTHER TO THE WEST. EACH MODEL SLIGHTLY DIFFERENT WITH TRACK OF QPF. ETA AND OLD MRF HAVE THE HEAVIEST QPF ACROSS N PA...WHILE AVN IS ACROSS S PA. WITH SHOWERS AND STORMS FORMING HERE AND THERE...AND BOUNDARY LIFTING NORTHWARD...AND N AREAS GETTING GOOD HEATING...LOOKS LIKE MOST AREAS WILL HAVE A GOOD SHOT OF GETTING SOME RAIN...THUS WILL KEEP HIGH POPS ALL ZONES TONIGHT...AND MENTION HEAVY RAIN. THE EXCEPTION MAY BE WARREN AND MCKEAN COUNTIES...I MAY GO LOWER THERE...BUT QUICK LOOK AT RADAR SHOWS NEW CELLS IN NE OH...THUS MAY KEEP HIGH POPS THERE TOO...WILL KEEP AN EYE ON THINGS. OVERALL...LOOKING AT CLUSTERS OF SHOWERS AND STORMS INTO AT LEAST THU...MAYBE INTO EARLY FRIDAY ACROSS FAR S ZONES. SOME STORMS WILL DUMP VERY HEAVY RAIN...GIVEN SLOW MOVEMENT AND HIGH PW/S. ALSO FEED OF HIGH DEWPOINTS WORKING NORTHWARD. IT HAS BEEN DRY...AND IT IS A LITTLE EARLY TO PINPOINT AREA OF HEAVY RAIN...THUS WILL HOLD OFF ON ANY WATCHES AT THE CURRENT TIME. WINDS NOT REAL STRONG...THUS WIDESPREAD SEVERE NOT LIKELY...BUT STRONG STORMS POSSIBLE...GIVEN THE INSTABILITY. ...LONG TERM... COOLER WEATHER FOR LATER IN THE WEEK. FAN TEMPS FOR BFD QUITE COOL. VERY DEEP VORTEX OVER EASTERN CANADA FOR LATE JULY. CLDS COULD COME 2IN LATE FRIDAY INTO SAT FOR WESTERN ZONES. GOOD CHC FOR MORE RAIN ON SUNDAY. MRF SUGGEST MOST OF MONDAY INTO THU WILL BE WARM BUT DRY NOW. .CTP...NONE. MARTIN
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Three inches of rain caused flooding at Ore Hill Golf Course in Roaring Springs.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2001Every state in 2001This day in weather historyWarnings in Pennsylvania, July 2001
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: 5256889.