As a cold front approached northeast Pennsylvania, warm temperatures and high humidity helped develop enough instability to produce scattered strong to severe thunderstorms. Isolated wind damage reports were received from Susquehanna county.
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.
As a cold front approached northeast Pennsylvania, warm temperatures and high humidity helped develop enough instability to produce scattered strong to severe thunderstorms. Isolated wind damage reports were received from Susquehanna county.
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 28, 7:19 PM EST, 41 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 819 PM EDT MON JUN 28 2010 .SYNOPSIS... A COLD FRONT WILL CROSS THE AREA TONIGHT...WITH SCATTERED SHOWERS AND THUNDERSTORMS PRECEDING IT...THROUGH THE EVENING HOURS. MUCH COOLER TEMPERATURES WILL FOLLOW FOR TUESDAY AND WEDNESDAY...BEHIND THE FRONT. HIGH PRESSURE WILL ALSO BUILD IN...BRINGING MAINLY DRY WEATHER. && .NEAR TERM /THROUGH TUESDAY/... UPDATED AT 125 PM... TWO MAIN AREAS OF CONVECTIVE DEVELOPMENT THIS AFTERNOON. ONE IS OVER WESTERN NY...AHEAD OF THE MAIN COLD FRONT ACROSS ONT AND LOWER MI. THE OTHER IS FORMING OVER THE DELMARVA REGION AND SOUTHEAST PA. THE FORMER AREA OF SHOWERS AND STORMS SHOULD CROSS MUCH OF THE FORECAST AREA LATE THIS AFTERNOON AND EARLY EVENING...WITH PERHAPS SLIGHT WEAKENING IN INTENSITY...AS THE AIR MASS ACROSS CENTRAL NY/NORTHEAST PA HAS BEEN SOMEWHAT CLOUDIER/MORE STABLE SO FAR TODAY. SINCE THERE IS STILL A SMALL WINDOW FOR FURTHER DESTABILIZATION LATE THIS AFTERNOON...AND THIS AREA IS CLOSER TO THE BETTER HEATING THAT HAS OCCURRED DOWN OVER THE COASTAL PLAIN...WE STILL MENTION THE POSSIBILITY OF LOCALLY HEAVY RAIN AND GUSTY WINDS...ACROSS SECTIONS OF NORTHEAST PA AND THE WESTERN CATSKILLS. LATER TONIGHT...ONCE THE FRONT CROSSES THE REGION...DRIER/MORE STABLE AIR WILL BUILD IN...WITH SHOWER COVERAGE DECREASING ACCORDINGLY. && .SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/... UPDATED AT 135 PM... A MUCH COOLER AIR MASS WILL PROGRESSIVELY INVADE THE NORTHEASTERN U.S. TUE THROUGH WED. OVERALL...THIS AIR MASS WILL ALSO BE FAIRLY DRY...SO A MINIMUM OF PRECIPITATION IS EXPECTED. HOWEVER...A COUPLE OF UPPER-LEVEL WAVES WILL ROTATE ACROSS UPSTATE NY...AND COULD TOUCH OFF SCATTERED SHOWER ACTIVITY OVER THE NORTHERN FINGER LAKES...MOHAWK VALLEY...SOUTHERN TUG HILL...AND CATSKILL ZONES...ESPECIALLY FROM TUE NIGHT INTO WED EVENING. BY THU...AN AMPLIFIED CLOSED LOW FOR THIS TIME OF YEAR...WILL BEGIN TO LIFT OUT ACROSS THE CANADIAN MARITIMES...WITH RISING HEIGHTS ACROSS NY/PA...AND MAINLY SUNNY SKIES. AS MENTIONED ABOVE...THIS PERIOD WILL FEATURE BELOW NORMAL TEMPS FOR EARLY JULY...WITH HIGHS IN THE UPPER 60S TO LOWER 70S...AND LOWS IN THE 40S AND LOWER 50S. && .LONG TERM /THURSDAY THROUGH MONDAY/... VERY QUIET XTNDD PD AS A LRG HIPRES BLDS IN SFC AND ALOFT AND GIVES THE AREA DRY WX. BY SUN...+590DM H5 HI OVER WRN PA AND H8 TEMPS APCHG 20C. SO...TEMP TREND WILL SHOW WRMG THRU THE PD WITH HI/S WELL ABV NRML BY THE END OF THE PD. GNRLY FLWD HPC GUID FOR TEMPS BUT DID DIAL BACK A BIT IN THE TEMPS NEAR THE END TO BLEND BETTER WITH THE SRNDG OFFICES AND THE LATEST MEX GUID. && .AVIATION /00Z TUESDAY THROUGH SATURDAY/... MAINLY VFR CONDITIONS THIS EVENING EXCEPT IN SCT TSRA WHERE CONDITIONS TEMPORARILY DROP TO IFR/MVFR. AFTER THE STORMS MOVES E AND WEAKEN BTWN 4 AND 6Z...AN MVFR CIG WILL DROP INTO THE AREA UNDER LL COLD AIR ADVECTION. MVFR CIGS AND LIGHT BR WILL PREDOMINATE BTWN 6Z AND 13Z...THEN VFR IN CUMULUS CLDS WHICH SHUD SCT OUT BY TUE AFTERNOON. OUTLOOK... TUES THRU SAT...MOSTLY VFR OTHER THAN SOME MORNING IFR FOG AT ELM. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...MLJ NEAR TERM...MLJ SHORT TERM...MLJ LONG TERM...DGM AVIATION...DJN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 146 PM EDT MON JUN 28 2010 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-291800- NORTHERN ONEIDA-YATES-SENECA-SOUTHERN CAYUGA-ONONDAGA-STEUBEN- SCHUYLER-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA-CORTLAND-CHENANGO- OTSEGO-TIOGA-BROOME-DELAWARE-SULLIVAN-BRADFORD-SUSQUEHANNA- NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE-SOUTHERN WAYNE- 146 PM EDT MON JUN 28 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK...SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SCATTERED THUNDERSTORMS WILL AFFECT THE REGION LATE THIS AFTERNOON...INTO THE EARLY EVENING. ISOLATED STORMS COULD PRODUCE HEAVY RAINFALL AND GUSTY WINDS...THROUGH ABOUT 8 PM. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MJ
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BINGHAMTON NY
745 PM EDT MON JUN 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0652 PM TSTM WND DMG UNION SPRINGS 42.85N 76.69W
06/28/2010 CAYUGA NY LAW ENFORCEMENT
WIRES DOWN
0730 PM TSTM WND DMG LOCKE 42.67N 76.42W
06/28/2010 CAYUGA NY AMATEUR RADIO
LARGE BRANCH DOWN...5 TO 7 INCHES IN DIAMETER...ON ROUTE
38 IN LOCKE.
&&
HEDENPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE BINGHAMTON NY
756 PM EDT MON JUN 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0652 PM TSTM WND DMG UNION SPRINGS 42.85N 76.69W
06/28/2010 CAYUGA NY LAW ENFORCEMENT
WIRES DOWN
0730 PM TSTM WND DMG LOCKE 42.67N 76.42W
06/28/2010 CAYUGA NY AMATEUR RADIO
LARGE BRANCH DOWN...5 TO 7 INCHES IN DIAMETER...ON ROUTE
38 IN LOCKE.
0741 PM FUNNEL CLOUD 8 W CORTLAND 42.60N 76.34W
06/28/2010 TOMPKINS NY PUBLIC
&&
HEDENPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
759 PM EDT MON JUN 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM TSTM WND DMG 3 NNE MORAVIA 42.75N 76.40W
06/28/2010 CAYUGA NY AMATEUR RADIO
NUMEROUS TREES DOWN.
&&
DJNSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 800 PM EDT MON JUN 28 2010 NYZ024-055-PAZ038-290045- BRADFORD PA-CHEMUNG NY-TIOGA NY- 800 PM EDT MON JUN 28 2010 ...STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL BRADFORD... SOUTHEASTERN CHEMUNG AND SOUTHERN TIOGA COUNTIES... * AT 758 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING STRONG GUSTY WINDS. THIS STORM WAS LOCATED NEAR LOCKWOOD...AND MOVING EAST AT 25 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... WAVERLY AND SOUTH WAVERLY AT 810 PM EDT... SAYRE AT 815 PM EDT... BARTON AND LITCHFIELD AT 820 PM EDT... LITCHFIELD AT 825 PM EDT... NICHOLS AND TIOGA CENTER AT 830 PM EDT... OWEGO AT 835 PM EDT... WINDHAM AT 840 PM EDT... THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. LAT...LON 4209 7617 4186 7633 4209 7670 4218 7663 HEDEN
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
814 PM EDT MON JUN 28 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0750 PM TORNADO CORTLAND 42.60N 76.18W
06/28/2010 CORTLAND NY AMATEUR RADIO
AN UNTRAINED SPOTTER REPORTED A TORNADO IN THE CORTLAND
AREA. THIS IS AN UNCONFIRMED REPORT.
&&
DJNSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
839 PM EDT MON JUN 28 2010
NYZ009-037-290145-
ONEIDA NY-
839 PM EDT MON JUN 28 2010
...STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL ONEIDA COUNTY...
* AT 838 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING SMALL HAIL...STRONG GUSTY
WINDS...AND VERY HEAVY RAIN. THIS STORM WAS LOCATED 16 MILES WEST
OF CAMDEN...AND MOVING EAST AT 25 MPH.
* THE STRONG THUNDERSTORM WILL BE NEAR...
JEWELL AT 915 PM EDT...
CAMDEN AT 920 PM EDT...
SYLVAN BEACH AND VERONA BEACH AT 925 PM EDT...
VIENNA AT 930 PM EDT...
BLOSSVALE AND GLENMORE AT 935 PM EDT...
TABERG AT 940 PM EDT...
LEE AND STOKES CORNER AT 945 PM EDT...
THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL
AND/OR DAMAGING WINDS.
LAT...LON 4340 7539 4314 7546 4321 7588 4331 7587
4332 7586 4333 7588 4335 7588 4342 7585
4343 7584
MLJThe Binghamton radar (KBGM), 29 km away, was scanning. The volume nearest the first event began at 00:59 UTC.
2 thunderstorm wind. Local standard time, as filed.
Trees were blown down across Route 267 in Choconut Township.
Trees and wires were blown down across Route 706.
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, June 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: 237111, 237112.