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 Binghamton, NY wrote its last area forecast discussion before the first event at May 27, 7:00 PM EST, 2 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 800 PM EDT MON MAY 27 2002 WILL ISSUE QUICK UPDATE TO INCLUDE CONVECTION ACROSS NRN TIER OF PA AND DELAWARE COUNTY. MULTIPLE BOUNDARIES HAVE KEPT THE CONVECTION GOING LONGER THAN ANTICIPATED. RRM ...PREVIOUS AFD... BUBBLE HIGH HAS PROVIDED THE FCST AREA WITH A NICE DAY...BUT A BIT MORE IN THE WAY OF CLDS ACRS THE SRN TIER AND NE PA WHICH IS CLOSER TO THE OLD FRONT. WDLY SCT ACTIVITY HAS DVLPD NEAR THIS BNDRY FROM NE PA INTO THE SRN CATSKILLS AND WILL INCLUDE A REMAINDER OF THE AFTN PD TO COVER THIS. HAVE VERY LTL FAITH IN THE ETA MDL W/RESPECT TO CONVECTIVE POTNL TMRW. PREV PERFORMANCE W/RESPECT TO QPF HAS NOT BEEN GOOD EITHER...ALL YOU HAVE TO DO IS LOOK AT THE PCPN FCST FOR 18Z TDA AND COMPARE IT TO THE CRNT RDRS (ACTUALLY ALL MDLS HAVE BEEN OVERDOING THIS). LAST NGTS 00Z RUNS DISPLAYED A SIMILAR WET BIAS WHICH WE DISCOUNTED. BIG DIFFS IN MDL REPRESENTATION OF LOW LVL MSTR FIELDS AND INSTABILITY CONTINUES TMRW. I STILL CANT FIND A DECENT TRIGGER TO FIRE UP CONVECTION AND DYNAMICS OVERALL ARE NEGLIGIBLE OR WEAK. ETA PROFILES...WHICH SHOWED 2600 J/KG CAPE FOR SYR TMRW FROM THE PREV 00Z RUN...HAS BACKED OFF TO ARND 1750 BUT STILL LOOKS UNREALISTIC. NGM PROFILES SHOW CAPES MAXING OUT ARND 250 J/KG AND SEEMS TO BE MORE REALISTIC. FOR BGM ETA SHOWING ARND 2000 TMRW THE NGM ARND 1000. CRNT FCST HAS CHC POPS FOR THE ENTIRE FCST AREA ON TUES. WILL NOT START FLIP-FLOPPING BUT ATTM BELIEVE THAT WE WONT SEE ANYTHING BETTER THAN ISOLD CONVECTION (IF THAT) ACRS CNTRL AND NRN ZONES TMRW, I.E., IF THE PCPN WAS NOT ALREADY IN THE FCST I WOULD NOT BE ADDING IT. LOOKS LIKE SLIGHTLY BETTER CHCS FOR SCT AFTN CONVECTION ACRS NRN/NE PA AND PSBLY THE BORDER COUNTIES OF SRN NY WHERE NGM/AVN SHOW THE GREATEST K INDICES. WILL KEEP THE LOW CHC POPS FOR THE ENTIRE AREA BUT DOWNPLAY IT THE BEST I CAN THROUGH THE FCST WORDING ACRS UPSTATE NY. BETTER CHCS FOR CONVECTION APPEAR TO BE ON WED WHEN MDLS HINT AT A WMFNTL-TYPE BNDRY MOVG THRU THE RGN AND A WEAK S/WV. FCST K INDICES IN THE L30S ACRS THE ENTIRE AREA. AVN HOWEVER LOOKS A LTL OVERDONE WITH THE MSTR FIELDS...AS DO THE LIKELY MAV POPS. FOR NOW WILL KEEP CHC POPS FOR AFTN CONVECTION AND LET LATER SHIFTS DETERMINE IF WE NEED TO PLAY THIS UP. XTNDD FCST...MDLS STILL HINTING AT SVR POTNL FOR FRIDAY WITH COLD FROPA...THEN COOLER AND DRIER FOR THE WEEKEND. .BGM...NONE. BRADY
The Binghamton radar (KBGM), 84 km away, was scanning. The volume nearest the first event began at 02:31 UTC.
1 flash flood. Local standard time, as filed.
Numerous roads were flooded and/or blocked by mudslides due to very heavy thunderstorm rains. Hardest hit areas were Downsville, East Branch, Hancock and Shinhopple.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2002Every state in 2002This day in weather historyWarnings in New York, May 2002
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: 5299325.