9 thunderstorm wind, 2 lightning, 1 hail, as filed by the National Weather Service.
Every event with a place to put it; 2 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 Jun 20, 2:43 AM EST, 9 hours 57 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 343 AM EDT WED JUN 20 2001 CONVECTION ENTERING WRN NY CONTINUES TO WEAKEN AS IT PROGRESSES EAST. SFC WAVE WILL MOVE ALONG FRONT TODAY AS CLD FRONT CROSSES REGION. FRONT WILL BECOME MORE ACTIVE THIS AFTERNOON WITH DAYTIME HEATING ESP IN CNTL AND ERN ZONES. BEST LOW LVL CONV BETWEEN 18Z-00Z OVR CNTRL/ERN ZONES WITH BUFKIT CAPES RANGING FROM 1,000-1,400 J/KG. MID LVL WIND FIELDS WEAKEN THROUGHOUT DAYTIME PERIOD BUT GOOD INSTABILITY AND FAVORABLE WET BULB TEMPS INDICATE THE POTENTIAL FOR SOME TSRA GOING SVR. WENT CHC POPS WRN/NRN ZONES AND LIKELY CNTRL/SE ZONES. TONIGHT...WILL CONTINUE WITH EVENING ACTIVITY MOST ZONES BUT NRN ONEIDA COUNTY HERE DRY. CHC POPS FOR EVENING SHRA/TSRA BUT LIKELY FAR SE ZONES AS FNT STILL IN VCNTY. WITH WEAK FLW BEHIND FRONT AND LIMITED DRYING WENT MC IN ALL ZONES. THURSDAY AND THURSDAY NIGHT...NGM/AVN/ETA SHOW A STRONGER WAVE WILL DEVELOP ALONG STALLED OUT FRONT IN MID ATLANTIC REGION THEN MOVE NE IN PERSISTENT SW UPR LVL FLW. WENT LIKELY POPS IN BOTH PERIODS ALL AREAS WITH SOME TIMING DIFFERENCES. MODELS INDICATE THIS AS A FAIRLY SIGNIFICANT QPF EV7ENT. .BGM...NONE. RRM
NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-210000- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 1019 AM EDT WED JUN 20 2001 ...SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON INTO THIS EVENING... THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS MUCH OF CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA. A FRONTAL SYSTEM DRAPED ACROSS THE REGION WILL GENERATE SCATTERED THUNDERSTORMS ACROSS THE FINGER LAKES REGION...CENTRAL SOUTHERN TIER AND IN THE WESTERN MOHAWK VALLEY THIS AFTERNOON. AS THE STORMS MOVE EASTWARD THE ACTIVITY MAY BECOME MORE WIDESPREAD AS IT MOVES INTO AN AREA OF GREATER INSTABILITY DUE TO DAYTIME HEATING. A FEW THUNDERSTORMS COULD BECOME SEVERE AS THEY STRENGTHEN ACROSS THE SUSQUEHANNA REGION...PRODUCING DAMAGING WINDS AND LARGE HAIL. THE GREATEST THREAT OF SEVERE WEATHER WILL OCCUR AS THE MATURE STORMS MOVE INTO THE WESTERN CATSKILLS AND NORTHEAST PENNSYLVANIA. THE THREAT OF SEVERE WEATHER WILL DECREASE THIS EVENING AS THE STORMS WEAKEN AFTER SUNSET. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL MEDIA OUTLETS FOR FURTHER DETAILS ON THIS POSSIBLE SEVERE WEATHER THREAT. INFORMATION IS ALSO AVAILABLE AT OUR INTERNET WEB SITE AT WWW.NWS.NOAA.GOV/ER/BGM. SPORER
NYZ036-046-045-044-055-056-PAZ038-039-NYZ057-PAZ040-NYZ062-PAZ048- 044-043-047-202200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 103 PM EDT WED JUN 20 2001 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 600 PM EDT... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH EFFECTIVE UNTIL 600 PM EDT FOR THE FOLLOWING COUNTIES: MADISON NY... OTSEGO NY... CHENANGO NY... CORTLAND NY... TIOGA NY... BROOME NY... BRADFORD PA... SUSQUEHANNA PA... DELAWARE NY... WAYNE PA... SULLIVAN NY... PIKE PA... LACKAWANNA PA... WYOMING PA... LUZERNE PA... SEVERE THUNDERSTORMS PRODUCE LARGE DAMAGING HAIL 3/4 OF AN INCH IN DIAMETER OR LARGER...DAMAGING THUNDERSTORM WINDS OF 58 MPH OR GREATER AND DANGEROUS CLOUD TO GROUND LIGHTNING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PEOPLE IN THESE AREAS SHOULD WATCH FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. TUNE TO NOAA WEATHER RADIO OR THE LOCAL MEDIA FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE IN BINGHAMTON. ONCE AGAIN A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 600 PM EDT.
The Binghamton radar (KBGM), 82 km away, was scanning. The volume nearest the first event began at 17:42 UTC.
9 thunderstorm wind, 2 lightning, 1 hail. Local standard time, as filed.
Newspaper reports indicate that golf ball size hail was reported in Terry township. Other reports from SKYWARN storm spotters indicate that 3/4 inch diameter hail was more common from Troy through Wyalusing. The hail accumulated to a depth of 2 to 3 inches in Terrytown where several homes and vehicles were damaged.
Emergency management reported many trees blown down by thunderstorm winds. Some homes were damaged by the falling trees and numerous roads were closed.
Newspaper reports indcate that several homes were damaged by falling trees that were blown down by thunderstorm winds.
Emergency management reported numerous trees and wires blown down by thunderstorm winds.
Emergency management reported numerous trees and wires blown down by thunderstorm winds in Lemon township, 2 miles north of Lake Carey. Newspaper reports indicate that other hard hit areas were near Quarry Road and Brecht Hill Road.
Emergecy management reported trees and wires blown down by thunderstorm winds.
Newspaper reports indicate that a house was struck by lightning on Quarry Road.
Emergency management reported numerous trees and wires blown down by thunderstorm winds in Lathrop township.
Emergency management reported numerous trees down in Benton township.
Newsapaper reports indicate that a house on Pike Street was struck by lightning.
SKYWARN storm spotters reported trees blown down by thunderstorm winds.
Emergency management reported numerous trees blown down by thunderstorm winds. Newspaper reports indicate that several tents and lightly built structures were damaged. Approximately 5300 people were without power after the storm. Newspaper clippings also had reports of dime size hail across the central portion of the county.
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, June 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: 5252948, 5252949, 5253027, 5252950, 5252951, 5252952, 5253028, 5252953, 5252954, 5253029, 5252955, 5252956.