A cold front approached the area from the northeast, with showers and thunderstorms developing during the afternoon and evening.
Every event with a place to put it. 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 episode as NWS BGM wrote it up.
A cold front approached the area from the northeast, with showers and thunderstorms developing during the afternoon and evening.
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, 2:24 PM EST, 1 hour 51 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 324 PM EDT THU MAY 27 2010 .SYNOPSIS... A COLD FRONT WILL DROP OUT OF NEW ENGLAND THIS EVENING AND BRING SHOWERS AND THUNDERSTORMS TO THE REGION THIS EVENING. A FEW SHOWERS WILL LINGER BEHIND THE FRONT INTO FRIDAY. ON SATURDAY...AN UPPER LEVEL AREA OF LOW PRESSURE WILL BRING A RISK OF SHOWERS ON SATURDAY. && .NEAR TERM /UNTIL 6 AM FRIDAY MORNING/... INTRSTG SVR WX SET UP AS A BACKDOOR COLD FNT PUSHES SLOWLY EAST INTO THE VERY WRM AIR IN PLACE. BARELY RCHG CONV TRIGGER TEMPS ATTM...BUT DEW PTS HAVE MIXED OUT OF SOME AREAS AND DROPPED INTO THE UPR 50S. WITH VERY DRY AIR ALOFT...XPCT SCT TO ISLTD CONV AT WORST...BUT ANY CELL THAT DVLPS CAN TAP THE SUBSTANTIAL MLVL CAPE AND GROW. SVR CHECK LIST BROUGHT BACK 4 OUT OF 5 ANALOGS FOR LRG HAIL...WHICH MAKES SENSE GIVEN THE DRY AIR. RISK OF DOWNBURST WIND DAMAGE AS WELL. NAM SHOWS SHWRS LINGERING...ESP OVER THE SERN ZONES OVRNGT AS AN UPR SHRT WV DROPS INTO THE NEW ENG TROF. && .SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/... FCST AREA IN A NW FLOW REGIME WITH THE UPR TROF TO THE EAST AND HIPRES BLDG OVER THE MID MS VLY. THIS WILL ALLOW SHRT WVS TO DROP THRU THE AREA ALONG THE OLD FNTL BNDRY. FRI SHD SHOW A DRYING TREND AS THE FNT DROPS TO THE SOUTHWEST AND DRIER AIR FILTERS IN. EARLY SAT A WEAK SHRT WV DROPS INTO WRN NY AND TRIGGERS SHWRS THUR THE DAY. FCSTD SNDGS SHOW LTL INSTABILITY AND WITH CLDS HTG NOT A BIG FACTOR SO WILL NOT FCST ANY TRWS ATTM. YET ANOTHER SHRT WV APRCHS FOR SUNDAY BUT MODELS SEEM TO INDICATE THAT THE CORE OF THE WV WILL DROP INTO NEW ENG LVG THE FCST AREA DRY. HAVE CONTD WITH THE PRVS FCST AND KEPT SHWRS OUT OF THE FCST FOR SUNDAY. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE REGION MONDAY...BRINGING ANOTHER ROUND OF SHOWERS. SOME THUNDERSTORMS MAY ALSO BE POSSIBLE. HIGH PRESSURE WILL BUILD BEHIND THE FRONT...BRINGING A PERIOD OF QUIETER WEATHER FOR THE MIDDLE OF THE WEEK. HIGH TEMPS LOOK TO REACH ONLY INTO THE LOW TO MID 70S. WITH SEVERAL EMBEDDED SHORTWAVE MOVING ACROSS THE AREA...THERE WILL BE A SLIGHT CHANCE FOR SOME SHOWERS EACH DAY...BUT NOTHING SIGNIFICANT. ANOTHER LOW WILL APPROACH THE AREA ON THURSDAY...BRINGING MORE WIDESPREAD SHOWERS TO THE AREA BY THURSDAY AFTERNOON. && .AVIATION /19Z THURSDAY THROUGH TUESDAY/... VFR CONDITIONS IS EXPECTED TO DROP TO MVFR THIS AFTERNOON OVER MANY LOCATIONS AS THUNDERSTORMS BEGIN TO DEVELOP. SOME OF THE STORMS HAVE THE POTENTIAL TO BECOME SEVERE THIS AFTERNOON...WITH LARGE HAIL AND GUSTY WINDS BEGIN THE MAIN THREAT. HAVE PUT IN TEMPO GROUP TO REFLECT THE STORMS AND POSSIBLE GUSTY WINDS. THE STORMS WILL BE TRIGGERED BY A COMBINATION OF DAYTIME HEATING AND A BACKDOOR COLD FRONT SLOWLY MAKING ITS WAY FROM EAST TO WEST ACROSS THE REGION. STORMS ARE EXPECTED TO QUIET DOWN THIS EVENING WITH THE LOSS OF THE HEATING. SOME AREAS..SUCH AS KITH AND KELM MAY SEE SOME LIGHT FOG DEVELOP OVERNIGHT. OTHER AREAS MAY SEE LOW CEILINGS BY SUNRISE. TOMORROW LOOKS TO BE MUCH QUIETER WITH JUST A CHANCE OF A SHOWER IN THE AFTERNOON. WINDS MAYBE ERRATIC AND GUSTY THIS AFTERNOON ONCE THUNDERSTORMS BEGIN TO DEVELOP. THE WILL BECOME MAINLY LIGHT AND VARIABLE OVERNIGHT. OUTLOOK... FRI - FRI NGT...VFR. SAT...VFR. POSSIBLE MVFR IN LIGHT SHOWERS DURING THE AFTERNOON. SAT NGT - MON...VFR. MAY SEE MVFR LATE IN THE DAY MONDAY WITH APPROACHING FRONTAL BOUNDARY. EARLY MORNING RESTRICTIONS POSSIBLE AT ELM DUE TO VALLEY FOG. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...DGM NEAR TERM...DGM SHORT TERM...DGM LONG TERM...PVN AVIATION...
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE BINGHAMTON NY 139 PM EDT THU MAY 27 2010 NYZ009-018-024-025-036-037-044>046-055>057-062-PAZ038>040-043-044- 047-048-072-281745- NORTHERN ONEIDA-ONONDAGA-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA- CORTLAND-CHENANGO-OTSEGO-TIOGA-BROOME-DELAWARE-SULLIVAN-BRADFORD- SUSQUEHANNA-NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE- SOUTHERN WAYNE- 139 PM EDT THU MAY 27 2010 ...SEVERE THUNDERSTORM WATCH 227 IN EFFECT UNTIL 9 PM EDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS. SEVERE THUNDERSTORM WATCH. SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING HOURS. SOME OF THESE STORMS COULD BECOME SEVERE... WITH DAMAGING WINDS AND LARGE HAIL. THE GREATEST THREAT FOR SEVERE THUNDERSTORMS WILL BE ALONG AND EAST OF THE INTERSTATE 81 CORRIDOR. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IN NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. NYZ015>017-022-023-281745- YATES-SENECA-SOUTHERN CAYUGA-STEUBEN-SCHUYLER- 139 PM EDT THU MAY 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK. .DAY ONE...THIS AFTERNOON AND TONIGHT. SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING HOURS. SEVERE THUNDERSTORMS ARE NOT EXPECTED. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WEATHER IN NOT EXPECTED. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 311 PM EDT THU MAY 27 2010 NYZ045-056-057-PAZ039-040-272015- BROOME NY-CHENANGO NY-DELAWARE NY-SUSQUEHANNA PA-WAYNE PA- 311 PM EDT THU MAY 27 2010 ...STRONG THUNDERSTORM WILL AFFECT EXTREME NORTHWESTERN WAYNE... EXTREME SOUTH CENTRAL CHENANGO...NORTHEASTERN SUSQUEHANNA... SOUTHEASTERN BROOME AND WEST CENTRAL DELAWARE COUNTIES... * AT 305 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM. THIS STORM WAS LOCATED NEAR NINEVEH...AND MOVING SOUTH AT 15 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... SANFORD AT 340 PM EDT... STILESVILLE AND CANNONSVILLE AT 350 PM EDT... DEPOSIT AT 355 PM EDT... SHERMAN AND HALE EDDY AT 410 PM EDT... THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. LAT...LON 4201 7523 4192 7554 4221 7563 4226 7539 DJN
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
334 PM EDT THU MAY 27 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0325 PM HAIL NINEVEH 42.20N 75.60W
05/27/2010 E0.75 INCH CHENANGO NY PUBLIC
&&
DJNSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
349 PM EDT THU MAY 27 2010
NYZ022-272045-
STEUBEN NY-
349 PM EDT THU MAY 27 2010
...STRONG THUNDERSTORM WILL AFFECT EASTERN STEUBEN COUNTY...
* AT 347 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM. THIS STORM WAS LOCATED NEAR SONORA...AND
MOVING SOUTHEAST AT 15 MPH.
* THE STRONG THUNDERSTORM WILL BE NEAR...
SAVONA AT 355 PM EDT...
MEADS CREEK AND CAMPBELL AT 410 PM EDT...
HORNBY AT 415 PM EDT...
COOPERS PLAINS AT 425 PM EDT...
PAINTED POST AND GANG MILLS AT 430 PM EDT...
CORNING AND GIBSON AT 440 PM EDT...
SOUTH CORNING AND EAST CORNING AT 445 PM EDT...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY!
LAT...LON 4245 7714 4244 7711 4242 7710 4228 7710
4228 7700 4224 7697 4205 7697 4199 7697
4200 7718 4235 7734 4238 7735
DJNSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
410 PM EDT THU MAY 27 2010
NYZ046-272045-
OTSEGO NY-
410 PM EDT THU MAY 27 2010
...STRONG THUNDERSTORM WILL AFFECT EASTERN OTSEGO COUNTY...
* AT 404 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND
HEAVY RAIN. THIS STORM WAS LOCATED NEAR COOPERSTOWN...AND MOVING
SOUTH AT 20 MPH.
* THE STRONG THUNDERSTORM WILL BE NEAR...
WESTVILLE AND WESTFORD AT 420 PM EDT...
MILFORD AT 425 PM EDT...
ELK CREEK AT 430 PM EDT...
WORCESTER AND PORTLANDVILLE AT 435 PM EDT...
SCHENEVUS AND MARYLAND AT 440 PM EDT...
COOPERSTOWN JCT AT 445 PM EDT...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
LAT...LON 4256 7467 4251 7472 4250 7478 4251 7484
4249 7489 4247 7502 4274 7506 4279 7482
4258 7465
CMGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
415 PM EDT THU MAY 27 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 PM HAIL COOPERSTOWN 42.70N 74.93W
05/27/2010 E0.75 INCH OTSEGO NY TRAINED SPOTTER
HAIL LASTED FOR 5 MINUTES.
&&
EVENT NUMBER BGM1000017
13SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
509 PM EDT THU MAY 27 2010
NYZ062-PAZ040-048-072-272200-
PIKE PA-SULLIVAN NY-WAYNE PA-
509 PM EDT THU MAY 27 2010
...STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL WAYNE...PIKE AND
SOUTHWESTERN SULLIVAN COUNTIES...
* AT 508 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...AND STRONG
GUSTY WINDS. THIS STORM WAS LOCATED NEAR HAWLEY...AND MOVING
SOUTHEAST AT 35 MPH.
* THE STRONG THUNDERSTORM WILL BE NEAR...
ROWLAND AND PAUPACK AT 515 PM EDT...
GREELEY AND BLOOMING GROVE AT 520 PM EDT...
LORDS VALLEY AND TWIN LAKES AT 525 PM EDT...
PECKS POND AT 530 PM EDT...
DINGMANS FERRY AT 545 PM EDT...
FOREST PARK AND TAMIMENT AT 550 PM EDT...
BUSHKILL AT 555 PM EDT...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
LAT...LON 4109 7506 4114 7509 4115 7515 4118 7516
4125 7514 4125 7519 4154 7530 4162 7508
4129 7481 4122 7486 4120 7486 4115 7490
4110 7496 4108 7502
JABThe Binghamton radar (KBGM), 105 km away, was scanning. The volume nearest the first event began at 21:16 UTC.
1 thunderstorm wind. Local standard time, as filed.
Three 40 foot pine trees were blown down. One inch hail was also reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2010Every state in 2010This day in weather historyWarnings in Pennsylvania, May 2010
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: 235358.