A deep area of low pressure over central Ontario, combined with a complex arrangement of surface frontal features led to the development of several rounds of heavy rain producing thunderstorms across central New York during the afternoon and evening hours of the 14th. Total damages from flooding have been estimated between one quarter to half a million dollars.
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 deep area of low pressure over central Ontario, combined with a complex arrangement of surface frontal features led to the development of several rounds of heavy rain producing thunderstorms across central New York during the afternoon and evening hours of the 14th. Total damages from flooding have been estimated between one quarter to half a million dollars.
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 14, 9:22 AM EST, 4 hours 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BINGHAMTON NY 1022 AM EDT TUE JUL 14 2015 .SYNOPSIS... A STORM SYSTEM DROPPING THROUGH THE GREAT LAKES WILL PULL WARM, HUMID AIR INTO THE AREA. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND CONTINUE INTO THE EVENING. SOME STORMS TODAY COULD PRODUCE VERY HEAVY RAINFALL RATES. HIGH PRESSURE WILL BRING A RETURN TO LESS HUMID WEATHER LATER WEDNESDAY LASTING INTO FRIDAY. && .NEAR TERM /THROUGH TONIGHT/... 10 AM UPDATE... FIRST BAND IN THE FAR EAST HAS DIMINISHED IN INTENSITY AND SHOULD BE OUT BY NOON. RAINFALL RATES LOW SO NO FLOOD ADVISORY OF SPS ANTICIPATED. SHOWERS MOVING INTO STEUBEN ALREADY FROM THE WEST. TSTORMS ONE COUNTY FURTHER WEST. THIS WILL BE THE AREA TO WATCH AS IT EXPANDS AND MOVES INTO THE AREA. ALSO PARTIAL CLEARING IN THE FINGER LAKES WILL PUSH TEMPERATURES TO UPPER 70S. LOW LEVEL INSTABILITY INCREASING. IN NE PA THICK LOW CLOUDS WILL LIMIT DEVELOP THIS MORNING BUT STILL PLENTY OF POTENTIAL FOR THIS AFTERNOON. 615 AM UPDATE...NARROW BAND OF PRIMARILY LIGHT SHOWERS THAT ARE ASSOCIATED WITH LEADING VORT LOBE HAVE REACHED THE I81 CORRIDOR. MADE SHORT TERM ADJUSTMENTS TO POPS BASED ON LATEST RADAR TRENDS THEN BROUGHT LIKELY POPS INTO AREA SLIGHTLY FASTER THAN PREVIOUS FORECAST BASED ON LATEST MESOSCALE MODELS. AT 430 AM...LOCAL RADARS SHOW SCATTERED LIGHT SHOWERS MOVING INTO THE CENTRAL SOUTHERN TIER AND FINGER LAKES REGION. THIS ACTIVITY IS BEING FORCED BY AN INITIAL VORT LOBE WELL AHEAD OF THE UPPER LEVEL FEATURE IN THE NRN GREAT LAKES. THIS ACTIVITY WILL CONTINUE MOVING EAST EARLY THIS MORNING AND POSSIBLY REACH I81 BY DAYBREAK. H5 TROF OVER THE UPPER GREAT LAKES WILL DIG SE THROUGH TONIGHT AND BE POSITIONED OVER NJ BY WED MORNING. DEEP SOUTHWEST FLOW AHEAD OF THIS FEATURE WILL BRING HIGH PWAT AIR INTO THE AREA BY THIS AFTERNOON WITH VALUES RANGING FROM 1.5-2.0 INCHES. THIS COMBINED WITH A WARM CLOUD LAYER AROUND 10/11K FT WILL BRING THE POTENTIAL FOR STORMS WITH VERY HEAVY RAINFALL RATES. SEVERE POTENTIAL LOOKS MINIMAL DURING THIS EVENT DUE TO MEAN LAYER CAPES AROUND 500-800 J/KG AND WEAK BULK SHEAR VALES AND MID LEVEL LAPSE RATES. AS THE SFC AND UPPER LEVEL FEATURE OVER MI DROP SE INTO WRN PA LATER THIS AFTERNOON WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS WILL DEVELOP OVER THE AREA. THIS ACTIVITY WILL CONTINUE THROUGH THE EVENING HOURS AS A SFC COLD FRONT DROPS SOUTH THROUGH THE AREA. ACTIVITY WILL LINGER THE LONGEST OVER NE PA AND THE SOUTHERN CATSKILLS AS STACKED SYSTEM WILL TAKE AWHILE TO MOVE OFF THE NJ COAST. WILL MENTION THE POTENTIAL FOR HEAVY RAINFALL RATES AND LOCALIZED FLASH FLOODING IN THE HWO. LATER SHIFTS MAY NEED TO ISSUE A FLASH FLOOD WATCH ONCE IT BECOMES MORE CLEAR WHERE THE MAIN THREAT WILL BE. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... SHOWERS MAY LINGER OVER THE AREA WED MORNING ESPECIALLY IN THE SE FA AS THE STORM SYSTEM MOVES OFF THE NJ COAST. BY AFTERNOON, SFC HIGH PRES WILL BUILD SOUTH OVER THE AREA BRINGING A NW FLOW OF MUCH DRIER AIR. MAXES WILL ONLY RANGE IN THE LOWER TO MIDDLE 70S ACROSS CENTRAL NY AND MID TO UPPER 70S IN NE PA. WED NIGHT THROUGH THURSDAY NIGHT...A NICE STRETCH OF WEATHER AS SFC HIGH PRES RESIDES OVER THE NORTHEAST. AIRMASS ASSOCIATED WITH THIS FEATURE WILL HAVE VERY LOW HUMIDITY AND BE RATHER COOL WITH MINS WED NIGHT RANGING FROM THE UPPER 40S TO MID 50S AND HIGH THURSDAY IN THE 70S. THURSDAY NIGHT WONT BE QUITE AS COOL AS SFC HIGH PRES MOVES TO COASTAL NEW ENGLAND, GENERALLY LOWER TO MIDDLE 50S. && .LONG TERM /FRIDAY THROUGH MONDAY/... 300 AM UPDATE... NOT TOO MANY CHANGES FROM OUR PREVIOUS FORECAST. INCREASED POPS A BIT ON SATURDAY WITH MOST MODEL GUIDANCE SHOWING A GOOD SHOT AT SHOWERS/STORMS, ESPECIALLY IN NY STATE. PREVIOUS AFD IS BELOW. MAINLY FOLLOWED WPC GUIDANCE EXCEPT MAIN SOME MODIFICATIONS TO POP AND SKY GRIDS. DRY WEATHER WITH PLENTY OF SUNSHINE CONTINUES THROUGH FRIDAY. AS THE HIGH SLIPS OFF TO THE EAST THIS WILL ALLOW A RETURN FLOW TO SET UP WITH TEMPERATURES STARTING TO WARM. EXPECT HIGHS IN THE LOW TO MID 80S WITH DEW POINTS STARTING TO CREEP UP AS WELL...THOUGH NOT TOO HUMID STILL THROUGH FRIDAY. OVER THE WEEKEND INTO EARLY NEXT WEEK, THE TREND WILL BE FOR WARMER TEMPS WITH HIGHER HUMIDITY. A SERIES OF DISTURBANCES WILL BRING THE CHANCES OF SCATTERED SHOWERS AND THUNDERSTORMS EACH DAY...THOUGH NOT LOOKING TO BE ANY ALL DAY RAIN TYPE EVENTS AS EACH DAY WILL FEATURE VARIABLE CLOUD COVER. HIGHS WILL BE MAINLY IN THE 80S WITH LOWS IN THE 60S. && .AVIATION /14Z TUESDAY THROUGH SATURDAY/... THROUGH 15Z GENERALLY VFR BUT SOME LIGHT SHOWERS AT KITH/KSYR/KRME MAY PRODUCE BRIEF MVFR VSBYS. ALSO AT KELM/KBGM/KAVP MVFR CIGS ARE POSSIBLE DURING THIS TIME. LATER THIS AFTERNOON, WIDESPREAD SHOWERS WITH EMBEDDED THUNDER LIKELY ALL TERMINALS FROM AROUND 18Z THROUGH 04Z TONIGHT. I CONTINUED WITH LOW END MVFR VSBYS. DUE TO A VERY MOIST ATMOSPHERE PERIODS OF IFR VSBYS ARE LIKELY IN HEAVY RAIN. LATE TONIGHT MVFR CIGS ARE LIKELY AT 09Z, WITH IFR POSSIBLE ON THE HILLTOPS. SOUTHWEST WINDS 10KTS TODAY BECOMING NORTHWEST LATE TONIGHT. .OUTLOOK... WEDNESDAY...RESTRICTIVE CONDITIONS POSSIBLE IN SHOWERS ESPECIALLY NEPA EARLY IN THE DAY. THURSDAY/FRIDAY...MAINLY VFR. SATURDAY...RESTRICTIONS POSSIBLE IN THUNDERSTORMS. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...NONE. NY...NONE. && SYNOPSIS...RRM/TAC NEAR TERM...RRM/TAC SHORT TERM...RRM LONG TERM...HEDEN/PCF AVIATION...HEDEN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BINGHAMTON NY 323 AM EDT TUE JUL 14 2015 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-150730- 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- 323 AM EDT TUE JUL 14 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NEW YORK AND NORTHEAST PENNSYLVANIA. .DAY ONE...TODAY AND TONIGHT. WIDESPREAD SHOWERS AND SCATTERED THUNDERSTORMS WILL DEVELOP BY THIS AFTERNOON AND CONTINUE INTO THE EARLY EVENING. SOME OF THESE STORMS COULD PRODUCE VERY HEAVY RAINFALL RATES WHICH MAY LEAD TO LOCALIZED FLASH FLOODING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. RRM
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
118 PM EDT TUE JUL 14 2015
NYZ015>017-023-025-141815-
SENECA NY-YATES NY-SCHUYLER NY-TOMPKINS NY-SOUTHERN CAYUGA NY-
118 PM EDT TUE JUL 14 2015
...LOCALLY HEAVY RAINFALL WILL AFFECT NORTHWESTERN TOMPKINS...
SCHUYLER...SENECA...CAYUGA AND YATES COUNTIES...
* AT 117 PM EDT...DOPPLER RADAR INDICATED LINE OF STRONG
THUNDERSTORMS ACROSS PARTS OF TOMPKINS...SCHUYLER...
SENECA...CAYUGA AND YATES COUNTIES.
* THERE IS A POTENTIAL FOR HEAVY RAINFALL...AND COULD CAUSE
LOCALIZED FLOODING OF ROADS AND POOR DRAINAGE AREAS. RADAR
RAINFALL ESTIMATES WERE AROUND AN INCH PER HOUR. SOME LOCATIONS
COULD RECEIVE 1 TO 2 INCHES OF RAIN.
* LOCATIONS THAT WILL BE IMPACTED BY THE HEAVY RAINFALL INCLUDE...
ITHACA...AUBURN...SENECA FALLS...WATERLOO...PENN YAN...WATKINS
GLEN...DUNDEE...MONTOUR FALLS...HECTOR...ROMULUS...SENNETT...
STARKEY...ENFIELD...BENTON...FLEMING...COVERT...GENOA...LEDYARD...
POTTER AND TRUMANSBURG.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
TO REPORT FLOODING...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
BINGHAMTON.
&&
LAT...LON 4273 7734 4276 7731 4276 7698 4298 7696
4302 7683 4303 7651 4239 7636 4233 7704
4239 7711 4251 7710 4249 7713 4250 7715
4257 7714 4258 7731 4263 7737
TIME...MOT...LOC 1717Z 269DEG 0KT 4309 7679 4219 7678
TACSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
143 PM EDT TUE JUL 14 2015
NYZ017-025-044-141830-
CORTLAND NY-TOMPKINS NY-SOUTHERN CAYUGA NY-
143 PM EDT TUE JUL 14 2015
...STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN TOMPKINS...CENTRAL
CORTLAND AND SOUTHEASTERN CAYUGA COUNTIES...
* AT 141 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR FREEVILLE...OR 8 MILES NORTHEAST OF ITHACA...MOVING NORTHEAST
AT 25 MPH.
* WINDS GUSTS OF 30 TO 40 MPH WILL BE POSSIBLE WITH THIS STORM.
* THIS STRONG THUNDERSTORM WILL BE NEAR...
FREEVILLE AROUND 145 PM EDT.
GROTON AND DRYDEN AROUND 150 PM EDT.
VIRGIL AND SOUTH CORTLAND AROUND 205 PM EDT.
MUNSONS CORNERS AROUND 210 PM EDT.
CORTLAND...HOMER AND SCOTT AROUND 215 PM EDT.
MCGRAW AROUND 220 PM EDT.
EAST HOMER AROUND 225 PM EDT.
PREBLE...TRUXTON AND SOLON AROUND 230 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM WITH RAINFALL
RATES UP TO AN INCH AND ONE HALF PER HOUR...WHICH MAY LEAD TO FLASH
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.
&&
LAT...LON 4261 7588 4242 7642 4257 7654 4278 7618
4278 7602
TIME...MOT...LOC 1741Z 238DEG 21KT 4254 7640
BGMSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
234 PM EDT TUE JUL 14 2015
NYZ018-025-036-044-045-055-056-141930-
ONONDAGA NY-MADISON NY-BROOME NY-TIOGA NY-CORTLAND NY-TOMPKINS NY-
CHENANGO NY-
234 PM EDT TUE JUL 14 2015
...LOCALLY HEAVY RAINFALL WILL AFFECT SOUTHEASTERN ONONDAGA...
NORTHERN TIOGA...SOUTHWESTERN MADISON...EASTERN TOMPKINS...
CORTLAND...NORTHWESTERN CHENANGO AND NORTHWESTERN BROOME COUNTIES...
* AT 233 PM EDT...DOPPLER RADAR INDICATED LOCALLY HEAVY RAINFALL
ACROSS PARTS OF SOUTHEASTERN ONONDAGA...NORTHERN TIOGA...
SOUTHWESTERN MADISON...EASTERN TOMPKINS...CORTLAND...NORTHWESTERN
CHENANGO AND NORTHWESTERN BROOME COUNTIES.
* THERE IS A POTENTIAL FOR HEAVY RAINFALL...AND COULD CAUSE LOCALIZED
FLOODING OF ROADS AND POOR DRAINAGE AREAS.
* LOCATIONS THAT WILL BE IMPACTED BY THE HEAVY RAINFALL INCLUDE...
CORTLAND...MARATHON...DANBY...HOMER...CAROLINE...VIRGIL...GROTON...
DRYDEN...NANTICOKE...BERKSHIRE...PREBLE...SCOTT...RICHFORD...
TRUXTON...SOLON...CINCINNATUS...MCGRAW...WILLET...CUYLER AND
WHITNEY POINT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
VISIBILITIES WILL BE REDUCED DUE TO THE HEAVY RAINFALL AND MAY CAUSE
PONDING OF WATER ON ROADWAYS. PLEASE DRIVE SAFELY.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
&&
LAT...LON 4280 7587 4272 7577 4240 7584 4225 7613
4220 7653 4228 7654 4262 7637 4262 7627
4281 7628
TIME...MOT...LOC 1833Z 180DEG 0KT 4253 7609
KAHThe Binghamton radar (KBGM), 39 km away, was scanning. The volume nearest the first event began at 19:07 UTC.
5 flash flood. Local standard time, as filed.
Flash flooding damaged and closed three roads near County Route 392.
Flooding closed and damaged Chamberlain Road near Kanona.
Flood waters were flowing through a home in the Village of Wayland.
Up to three homes in the Village of Wayland had water flowing through the basement and first floor.
Numerous underpasses in the City of Elmira were flooded by standing water up to 5 feet deep. Several cars were stranded which required the occupants to be rescued by emergency personnel.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2015Every state in 2015This day in weather historyWarnings in New York, July 2015
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: 596781, 596782, 596784, 596786, 596788.