Residual moisture behind a passing cold front provided enough instability across southern New York and northeast Pennsylvania for scattered showers and thunderstorms to develop during the afternoon. Some of the storms produced large hail and damaging winds.
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.
Residual moisture behind a passing cold front provided enough instability across southern New York and northeast Pennsylvania for scattered showers and thunderstorms to develop during the afternoon. Some of the storms produced large hail and damaging winds.
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 Aug 17, 2:45 PM EST, 3 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 345 PM EDT FRI AUG 17 2007 .SYNOPSIS... A COLD FRONT WILL PUSH THROUGH THE REGION TONIGHT. THIS SYSTEM WILL BRING SCATTERED LIGHT SHOWERS THIS EVENING...FOLLOWED BY A SHOT OF COOL AND DRIER AIR. THIS INCOMING AIR MASS WILL BRING A PARTLY CLOUDY AND DRY WEEKEND...WITH HIGHS IN THE UPPER 60S AND 70S. AN APPROACHING WARM FRONT WILL BRING THE CHANCE OF SHOWERS OR THUNDERSTORMS BACK INTO THE AREA FROM LATER SUNDAY NIGHT INTO MONDAY. && .NEAR TERM /UNTIL 6 AM SATURDAY MORNING/... LINGERING THUNDERSTORMS OVER NORTHEAST PA LATE THIS AFTERNOON SHOULD DIMINISH BY 6 OR 7 PM...AS MORE STABLE AIR PUSHES IN FROM THE NORTHWEST. A SECONDARY COLD FRONT WILL MAKE IT THROUGH THE ENTIRE FORECAST AREA BEFORE DAYBREAK. THIS SYSTEM WILL USHER IN A FAIRLY COOL AIR MASS FOR THIS TIME OF YEAR...ACCOMPANIED BY A FEW EVENING SHOWERS ACROSS CENTRAL NY. SKIES SHOULD CLEAR OUT LATE AT NIGHT...AS STRONGER DRY ADVECTION DEVELOPS. && .SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY/... HIGH PRESSURE BUILDS IN FROM THE GREAT LAKES REGION OVER THE WEEKEND. THIS SYSTEM IS STILL EXPECTED TO BRING RAIN-FREE AND COOL CONDITIONS. HIGHS WILL RANGE FROM THE UPPER 60S TO MID 70S...WITH EARLY MORNING LOWS WELL DOWN INTO THE 40S. A FEW MID TO UPPER 30S ARE EVEN POSSIBLE EARLY SUNDAY IN NORMALLY COLDER SECTIONS. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... FOLLOWED HPC GUIDANCE. UPPER PATTERN BECOMES MORE FLAT RIDGE ACROSS THE EAST NEXT WEEK WITH FASTER ZONAL FLOW IN PLACE OVER NY/PA. LAST COUPLE OF RUNS FROM THE GFS KEEP WAVY FRONTAL BOUNDARY SOUTH OF THE AREA THROUGH ABOUT TUESDAY BEFORE LIFTING THE FRONT NORTH ACROSS THE AREA THAT WILL KEEP CHCS FOR PRECIP THRU THE END OF THE PERIOD. && .AVIATION /20Z FRIDAY THROUGH WEDNESDAY/... VFR THROUGHOUT THE TERMINALS WITH SCT TO BKN CU DECK. A FEW TSRA CLOSE TO KAVP ARE STAYING MAINLY TO THE SOUTH OF THE AIRPORT THIS AFTN...BUT CANNOT RULE OUT SHRA OR BRIEF TSRA FOR NEXT COUPLE OF HOURS. HAVE COVERED WITH SHRA SND BKN CB FOR NOW. A FEW OTHER SHOWERS ARE EXPECTED MAINLY AT KRME AND KSYR LATE THIS AFTN INTO THIS EVENING, BUT CEILINGS AND VISBY RESTRICTIONS ARE NOT ANTICIPATED...BUT BRIEF MVFR CANNOT BE RULED OUT. OTHERWISE...VFR EXPECTED THROUGH 12Z WITH SCT/BKN MID LVL CLDS. WESTERLY WINDS AROUND 10 KTS THIS AFTN AND 5 TO 10 KTS TONIGHT. VFR CONDITIONS UNDER HIGH PRESSURE BUILD IN FOR SATURDAY AND SUNDAY. MVFR OR IFR VALLEY FOG AT ELM POSSIBLE SUNDAY MORNING. A WARM FRONT SLOWLY APPROACHES MONDAY AND TUESDAY WITH MVFR RESTRICTIONS POSSIBLE AT AVP AND MAYBE BGM...ITH...AND ELM IN -SHRA AND LOW CIGS. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...MLJ NEAR TERM...MLJ SHORT TERM...MLJ LONG TERM...JML AVIATION...JML
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 532 PM EDT FRI AUG 17 2007 NYZ009-015>018-022>025-036-037-044>046-055>057-PAZ038-182145- NORTHERN ONEIDA-YATES-SENECA-SOUTHERN CAYUGA-ONONDAGA-STEUBEN- SCHUYLER-CHEMUNG-TOMPKINS-MADISON-SOUTHERN ONEIDA-CORTLAND-CHENANGO- OTSEGO-TIOGA-BROOME-DELAWARE-BRADFORD- 532 PM EDT FRI AUG 17 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...TONIGHT SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS EVENING. GUSTY WINDS OR SMALL HAIL COULD ACCOMPANY ANY STRONGER STORMS... BUT NO SEVERE WEATHER IS EXPECTED. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. NYZ062-PAZ039-040-043-044-047-048-072-182145- SULLIVAN-SUSQUEHANNA-NORTHERN WAYNE-WYOMING-LACKAWANNA-LUZERNE-PIKE- SOUTHERN WAYNE- 532 PM EDT FRI AUG 17 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MSE
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
211 PM EDT FRI AUG 17 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM HAIL HAZLETON 40.95N 75.97W
08/17/2007 E0.75 INCH LUZERNE PA PUBLIC
0205 PM HAIL HAZLETON 40.95N 75.97W
08/17/2007 E1.75 INCH LUZERNE PA PUBLIC
&&
RAMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
224 PM EDT FRI AUG 17 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0218 PM HAIL HAZLETON 40.95N 75.97W
08/17/2007 E1.25 INCH LUZERNE PA PUBLIC
&&
RAMSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 332 PM EDT FRI AUG 17 2007 PAZ047-172030- LUZERNE PA- 332 PM EDT FRI AUG 17 2007 ...STRONG THUNDERSTORM MOVING INTO THE AREA... * AT 322 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 MUHLENBERG...AND MOVING EAST AT 45 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... PRESTON AND ASHLEY AT 340 PM EDT... LAUREL RUN AND WILKES-BARRE TOWNSHIP AT 345 PM EDT... BEAR CREEK AND WESTMINISTER AT 350 PM EDT... THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. MSE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 631 PM EDT FRI AUG 17 2007 NYZ015-016-023-025-172330- SCHUYLER NY-SENECA NY-TOMPKINS NY-YATES NY- 631 PM EDT FRI AUG 17 2007 ...STRONG THUNDERSTORM MOVING INTO THE AREA... * AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM CAPABLE OF PRODUCING STRONG GUSTY WINDS. THIS STORM WAS LOCATED NEAR POTTER...AND MOVING EAST AT 55 MPH. * THE STRONG THUNDERSTORM WILL BE NEAR... MILO CENTER AT 640 PM EDT... HIMROD AT 645 PM EDT... LODI AT 650 PM EDT... TOWNSENDVILLE AT 655 PM EDT... TRUMANSBURG AT 700 PM EDT... TAUGHANNOCK FALLS AT 705 PM EDT... LANSING AND ITHACA TOMPKINS ARPT AT 710 PM EDT... ETNA AND WEST DRYDEN AT 715 PM EDT... THIS STORM HAS THE POTENTIAL TO BECOME SEVERE AND PRODUCE LARGE HAIL AND/OR DAMAGING WINDS. MSE
The Binghamton radar (KBGM), 87 km away, was scanning. The volume nearest the first event began at 22:49 UTC.
15 thunderstorm wind, 2 hail. Local standard time, as filed.
Wires were blown down by thunderstorm winds.
Trees were blown down across the southern part of the county.
Trees were blown down throughout the Trumansburg and Dryden areas.
Trees were blown down throughout the city of Ithaca.
Large branches were broken off by thunderstorm winds.
Trees were blown down throughout northern portions of the county.
Trees and wires were blown down.
Trees were blown down throughout the southern part of the county.
Trees were blown down by thunderstorm winds.
Trees and wires were blown down.
Trees were blown down in Binghamton and Vestal.
Numerous trees were blown down.
Trees were blown down.
Trees were blown down in Walton and Delhi.
Trees were blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2007Every state in 2007This day in weather historyWarnings in New York, August 2007
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: 46665, 46666, 46667, 46668, 46669, 46670, 46671, 46672, 46673, 46674, 46675, 46676, 46677, 46679, 46663, 46680, 46664.