1 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 Binghamton, NY wrote its last area forecast discussion before the first event at Apr 9, 10:30 AM EST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 1130 AM EDT MON APR 9 2001 SENT A QUICK UPDATE TO ZONES MAINLY TO ADDRESS LATER TIMING OF PRECIP. SOME ADJUSTMENTS TO WORDING OF CLDS AS WELL. DECENT LINE OF STORMS ACROSS NORTHERN OHIO LATE THIS MORNING MOVING EWD. MAY SEE SOME THUNDER MAINLY ACROSS OUR WESTERN AND SOUTHERN ZONES...BUT BEST INSTABILITY IS TO THE SOUTH OF FRONTAL BOUNDARY STETCHED ACROSS NORTHERN PA. UPDATED ZONES OUT. .BGM...NONE. JML
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Rainfall and snowmelt combined to bring the Susquehanna River out of its banks at Sayre in Bradford county. The flooding was minor and confined mostly to rural agricultural lands in the flood plain.
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, April 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: 5242627.