1 heavy snow, 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 Feb 2, 9:15 PM EST, 2 hours 46 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 915 PM EST FRI FEB 2 2001 WILL SEND OUT A LATE EVENING ZONE UPDATE TO MENTION MORE IN THE WAY CLOUDS AND SHSN ACROSS THE WRN MTNS...AND SUBSEQUENTLY RAISE ABOUT 5 DEG ACROSS THE EXTREME NW. H8 THERMAL TROUGH WILL STAY ACROSS THE REGION OVERNIGHT. LLVL FLOW FROM THE WEST NW WILL TAP ENOUGH MOISTURE WAY UPSTREAM FROM LAKE MICH TO SQUEEZE OUT PLENTY OF STRATO CU AND SCATTERED SHSN VIA UPSLOPE ACROSS THE WRN MTNS. LACK OF BLYR DECOUPLING DUE TO THE CLOUDS WILL KEEP WINDS UP IN THE 10 TO 20 MPH RANGE...AND THE PREV WIND CHILL ADVIS ACROSS THE MTNS SHOULD WORK OUT FINE. WILL ALSO CONTINUE THE HEADLINES FOR SUB ZERO WIND CHILLS IN THE CENTRAL AND EAST. WEAK UPPER VORT MAX AND WARM ADVECTION DRIFTING EAST ACROSS ILL AND IND THIS EVENING WILL BECOME MORE ELONGATED NORTH TO SOUTH AS IT MAKES ITS WAY ACROSS THE WRN HIGHLANDS SATURDAY AFTERNOON. I MODIFIED CLOUD COVER ON SAT TO MSTLY CLOUDY ACROSS THE WEST BASED ON THIS FEATURE...AND ITS REFLECTION IN THE RATHER HIGH MID LVL REL HUMIDITY ON THE MESO ETA. ACROSS THE CENTRAL AND EAST...THERE SHOULD BE PLENTY OF SUN...JUST MIXING WITH A THIN ALTO CU DECK LATER IN THE AFTERNOON NEAR AND NORTH OF I-80. .CTP...WIND CHILL ADVISORY...OVERNIGHT...WESTERN 1/2 CWFA. LAMBERT
The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
Northwest winds produced localized bands of lake effect snow which reached into Warren County. Four to seven inches of new snow were reported by early morning of the 3rd, when the event ended.
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, February 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: 5234802.