A warm, humid airmass overspread Central New York ahead of an approaching cold front. Scattered showers and thunderstorms developed, and a few of the storms became severe across the Southern Tier of New York due to better instability and deep layer shear across that area.
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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 warm, humid airmass overspread Central New York ahead of an approaching cold front. Scattered showers and thunderstorms developed, and a few of the storms became severe across the Southern Tier of New York due to better instability and deep layer shear across that area.
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 Jul 5, 12:19 PM EST, 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 119 PM EDT THU JUL 5 2007 .SYNOPSIS... A COLD FRONT IS EXPECTED TO SLOWLY APPROACH THE AREA TODAY FROM THE NORTHWEST...THEN MOVE THROUGH THIS EVENING. SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON...AND PERHAPS LAST INTO THE EVENING HOURS...BEFORE TAPERING OFF. AN UPPER-LEVEL TROUGH WILL PASS OVER THE REGION FRIDAY...WITH A FEW MORE SHOWERS OR THUNDERSTORMS POSSIBLE. THE WEEKEND LOOKS DRIER...AS HIGH PRESSURE BUILDS IN FROM THE WEST. SEASONABLE TEMPERATURES ARE EXPECTED SATURDAY...WITH READINGS CLIMBING WELL INTO THE 80S BY SUNDAY AFTERNOON. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... SEVERE THUNDERSTORM WATCH 487 HAS BEEN ISSUED UNTIL 00Z FRIDAY. WIDESPREAD SHOWERS AND THUNDERSTORMS HAVE DEVELOPED PAST HOUR ACROSS SOUTHERN ONTARIO NEAR THE NORTH SHORE OF LAKE ERIE. THIS ACTIVITY IS DEVELOPING ALONG POORLY DEFINED COLD FRONT. AS THIS FRONT SLOWLY PROGRESSES THROUGH FA THIS AFTERNOON/EVENING LOW LEVEL DESTABILIZATION WILL ENHANCE ACTIVITY AS CAPE APPROACHES 1000 J/KG OVER CENTRAL AND SOUTHERN FA. WITH DEEP LAYER SHEAR BUT NEARLY UNIDIRECTIONAL FLOW, LINEAR ORGANIZATION IS POSSIBLE WITH THE POTENTIAL FOR SEVERE STORMS WITH HAIL AND STRONG WINDS. UPPED POPS TO LIKELY IN THE CENTRAL SOUTHERN TIER, SUSQUEHANNA REGION AND WESTERN CATSKILLS WITH HIGH CHC POPS NRN FA. REST OF FORECAST UNCHANGED. && .SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY/... CONVECTION SHOULD LAST INTO EARLY TONIGHT OVER NORTHEAST PA...DUE TO SLOWER FRONTAL PASSAGE. ONCE THE FRONT FINALLY GOES THROUGH...AREAL COVERAGE OF SHOWERS AND STORMS SHOULD QUICKLY DECREASE. PATCHY FOG SHOULD FORM AGAIN OVERNIGHT. FRIDAY...AN UPPER-LEVEL TROUGH IS EXPECTED TO COME THROUGH. THIS FEATURE APPEARS THAT IT WILL STEEPEN LAPSE RATES ALOFT ENOUGH SO THAT SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED...MAINLY DURING THE PEAK HEATING PERIOD IN THE AFTERNOON. BY SATURDAY...HEIGHTS ARE FORECAST TO START BUILDING OVER THE AREA...AS HIGH PRESSURE MOVES IN. THUS...WERE ANTICIPATING MORE SUNSHINE...WITH NEAR SEASONAL TEMPERATURES FOR EARLY JULY. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... FOLLOWED HPC GUIDANCE WITH MINOR CHANGES. MODELS SIMILAR TO YESTERDAY WITH THE NORTHEAST TROUGH PULLING OUT ALLOWING MORE ZONAL FLOW TO DEVELOP BY SUNDAY NIGHT. THIS FLOW THEN BECOMES SOUTHWESTERLY DURING THE EARLY PART OF NEXT WEEK AS TROUGHING DIGS INTO THE WESTERN GREAT LAKES. THIS WILL BRING A SUMMERY PATTERN TO THE CWA WITH MODERATING TEMPERATURES AND FREQUENT BOUTS OF SHRA/TSRA. A WEAK FRONT PASSES THROUGH THE AREA MONDAY NIGHT AND WASHES OUT OVER THE AREA...LIKELY PROVIDING A FOCUSING MECHANISM FOR SHRA/TSRA FOR THE MON-WED TIMEFRAME. TROUGH OVER THE GREAT LAKES FINALLY PULLS EAST AS WE MOVE TOWARDS THURSDAY...BRINGING A MORE POTENT COLD FRONT THROUGH THE AREA. THIS WILL BRING A BETTER CHANCE FOR SHRA/TSRA...ALTHOUGH AT THIS POINT...WILL ONLY CARRY CHC POPS. TEMPS IN THE L/M 80S LOOK GOOD THROUGH THE WEEK AS T850 HOVERS NEAR +15C. && .AVIATION /18Z THURSDAY THROUGH MONDAY/... MAIN SHORT-TERM CONCERN IS CONVECTION AS ALL SITES EXCEPT ITH /STILL MVFR LOW CLOUDS/ ARE VFR ATTM. CONVECTION WILL BRING MVFR /ISOLATED IFR/ RESTRICTIONS...FIRST TO ELM/ITH...THEN TREKING SOUTH AND EAST. CONVECTION SHOULD LAST 1-2 HOURS AND THEN TAPER OFF. CURRENT TIMING WOULD BRING CONVECTIVE LINE NEAR KPEO/KDSV TO KAVP BY 22Z. HOWEVER...WE MAY SEE SOME ISOLATED CONVECTION POP UP AHEAD OF THE LINE. CONVECTION SHOULD BE DONE AT AVP BY AROUND 1Z. THIS EVENING...VFR CONDITIONS EXPECTED BEHIND THE CONVECTION OUTSIDE OF SOME MVFR FOG/HAZE AT AVP. AS WE NEAR MIDNIGHT...FOG WILL LIKELY DEVELOP THROUGHOUT THE SITES...ALTHOUGH IT MAY WAIT UNTIL TOWARDS MORNING AT SYR/AVP. IFR FOG LIKELY FOR A TIME AT ITH/BGM/ELM/AVP. ON FRIDAY MORNING...EXPECT FOG TO DIMINISH...WITH A SCT 5KFT DECK DEVELOPING BY MID MORNING. WINDS ARE GENERALLY SOUTHWEST NEAR 10KTS THIS AFTERNOON /EXCEPT STRONGER NEAR TSRA/. EXPECT THIS TO CONTINUE UNTIL SUNSET WHEN WINDS WILL BECOME MORE WESTERLY AND WEAKEN TO LESS THAN 10KTS. ON FRIDAY...WINDS WILL STRENGTHEN OUT OF THE NORTHWEST TO 10G18KTS. SHOWERS POSSIBLE AGAIN FRIDAY AFTERNOON WITH THE POTENTIAL FOR MVFR RESTRICTIONS. SATURDAY/SUNDAY SHOULD BE VFR OUTSIDE OF POTENTIAL MORNING FOG AT ELM. SOME SHRA/TSRA COULD BRING RESTRICTIONS BY MONDAY WITH MORNING FOG AT ELM AGAIN POSSIBLE. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...MLJ NEAR TERM...MLJ/RRM SHORT TERM...MLJ LONG TERM...JMA AVIATION...JMA
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 103 PM EDT THU JUL 5 2007 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-061715- 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- 103 PM EDT THU JUL 5 2007 ...SEVERE THUNDERSTORM WATCH 487 IN EFFECT UNTIL 8 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. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NEEDED THIS AFTERNOON AND EVENING.. RRM
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BINGHAMTON NY 1200 PM EDT THU JUL 5 2007 NYZ015>017-022-023-025-051759- SCHUYLER-SENECA-SOUTHERN CAYUGA-STEUBEN-TOMPKINS-YATES- 1200 PM EDT THU JUL 5 2007 ...LINE OF THUNDERSTORMS MOVING TOWARD THE FINGER LAKES... A LINE OF THUNDERSTORMS WITH WIND GUSTS TO 35 MPH...BRIEF HEAVY RAIN...AND DANGEROUS LIGHTNING WILL MOVE EAST AT 30 MPH...AND INTO THE FINGER LAKES REGION. THE LINE OF THUNDERSTORMS WILL BE NEAR... WAYLAND...RUSHVILLE...AND WATERLOO AROUND 1 PM. ARKPORT...PENN YAN...AND UNION SPRINGS AROUND 130 PM. HORNELL...DUNDEE...AND LONG POINT STATE PARK AROUND 145 PM. THESE STORMS WILL PASS OVER THE WESTERN FINGER LAKES. CAMPERS AND BOATERS ARE ADVISED TO KEEP AN EYE ON THE SKY. SEEK SHELTER IF THREATENING WEATHER MOVES INTO THE AREA. GILT
The Binghamton radar (KBGM), 120 km away, was scanning. The volume nearest the first event began at 17:32 UTC.
5 thunderstorm wind. Local standard time, as filed.
Wires were blown down on Kanona Road.
Trees were blown down on Ford Hill Road.
A large limb was blown down.
Large branches were broken.
Numerous trees and wires were blown down across Stillwater Road.
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, July 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: 46307, 46308, 46309, 46310, 46311.