Warm and excessively moist air interacted with a series of cold fronts moving through central New York during this time. This triggered locally heavy rain of 2 to 4 inches in less than a three hour period.
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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.
Warm and excessively moist air interacted with a series of cold fronts moving through central New York during this time. This triggered locally heavy rain of 2 to 4 inches in less than a three hour period. Flash flooding of streams and urban areas ensued.
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 11, 2:43 PM EST, 8 hours 32 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 343 PM EDT Thu Jul 11 2019 .SYNOPSIS... A cold front will move east and cross the region, bringing showers and thunderstorms this afternoon and tonight. Somewhat cooler air will arrive Friday with lingering showers. && .NEAR TERM /THROUGH FRIDAY NIGHT/... 330 PM Update... Showers and storms continue across our eastern zones this afternoon, but a brief lull in the majority of the activity is expected through the early evening. However, with CAPE up to 2000-3000 j/kg, any storms that can develop over the next several hours would still have the potential to produce strong wind gusts and heavy downpours. With PWATS up to 1.5-2.0 in today, locally heavy downpours will be possible, which could cause localized flooding issues. The greatest concern for flooding would be across NE PA and portions of the eastern Southern Tier and western Catskills, where heavy downpours have already occurred so far today. Convection lingers into the night ahead of the approaching front, with a line of convection in Ontario province expected to move into western NY into the evening. With the pre- frontal environment still quite favorable for strong storms this afternoon and into the early evening, we will continue to keep in the risk for strong to severe wind gusts and heavy downpours through 3Z as this line moves through. Thunder tapers off through 6Z, then only showers are expected to linger overnight. Rain should wind down by Friday afternoon, with more breaks in the clouds developing throughout the day as temperatures starting in the 60s reach highs in the mid 70s to near 80F. Temperatures quickly drop back into the upper 50s and low 60s under increasingly clear skies Friday night, with some patchy fog possible. && .SHORT TERM /SATURDAY THROUGH SATURDAY NIGHT/... 230 PM Update... A weak surface front will drop into the area Saturday evening. This is with an upper level trough dropping southeast into the northeast U.S. Unlike total winds and wind shear will be good but the instability will be weak. Cape only gets to a hundred but deep wind shear at 40 kts. Moisture will be lacking and mostly Saturday afternoon and evening. Isolated showers and maybe a thunderstorm is possible mostly in CNY closer to the better forcing and cold air aloft. Highs in the 80s and lows around 60. H&& .LONG TERM /SUNDAY THROUGH THURSDAY/... 230 PM Update... High pressure builds into the Great Lakes Sunday with dry and cooler air. The high is over NY/PA Monday then slowly moves off the coast Tuesday. Heat and humidity slowly builds as highs around 80 Sunday rise into the mid and upper 80s Tuesday. Lows Sunday night in the 50s rise well into the 60s. Tuesday weak short wave energy moves through in a zonal flow. The big question is how far north remnants of Barry will get late week. For now models have it to the east coast Thursday. Tropical moisture moves in starting Tuesday but with not much of a trigger to set thunderstorms off. Wednesday and Thursday with the deeper moisture showers and thunderstorms will be scattered. && .AVIATION /20Z THURSDAY THROUGH TUESDAY/... We continue to see MVFR conditions across BGM and AVP over the next couple of hours as ceilings remain somewhat restricted in the wake of earlier showers and storms. Chances for showers and storms increase for the late afternoon and evening hours, with occasional MVFR conditions across all TAF sites in storms. Wind gusts around 16kts are possible at AVP over the next couple of hours, otherwise southerly winds should stay generally below 10kts the rest of the afternoon. Ceilings drop back to fuel alternate and finally IFR across most TAF sites overnight, with some patchy fog also possible at ELM. Outlook... Friday...ceilings improve to mainly MVFR for the daytime hours and finally VFR by the evening. Saturday through Monday...Mainly VFR, though a period of valley fog will be possible early each morning at KELM. Tuesday...Restrictions possible in showers and storms during the afternoon. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...DGM NEAR TERM...HLC SHORT TERM...TAC LONG TERM...TAC AVIATION...HLC
Hazardous Weather Outlook National Weather Service Binghamton NY 1046 PM EDT Thu Jul 11 2019 NYZ009-018-036-037-130300- Northern Oneida-Onondaga-Madison-Southern Oneida- 1046 PM EDT Thu Jul 11 2019 This Hazardous Weather Outlook is for central New York. .DAY ONE...Tonight. Thunderstorms with heavy rain could cause localized flash flooding. Storms will come to an end after midnight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. NYZ015>017-022>025-044>046-055>057-062-PAZ038>040-043-044-047-048- 072-130300- Yates-Seneca-Southern Cayuga-Steuben-Schuyler-Chemung-Tompkins- Cortland-Chenango-Otsego-Tioga-Broome-Delaware-Sullivan-Bradford- Susquehanna-Northern Wayne-Wyoming-Lackawanna-Luzerne-Pike- Southern Wayne- 1046 PM EDT Thu Jul 11 2019 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
Special Weather Statement
National Weather Service Binghamton NY
Issued by National Weather Service State College PA
747 PM EDT Thu Jul 11 2019
NYZ009-037-120030-
Southern Oneida NY-Northern Oneida NY-
747 PM EDT Thu Jul 11 2019
...STRONG THUNDERSTORMS WILL AFFECT PARTS OF ONEIDA COUNTY UNTIL 830
PM EDT...
At 747 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Lowville to 11 miles west of Whetstone Gulf
State Park to near Highmarket to near Redfield to 9 miles northeast
of Central Square. Movement was east southeast at 30 mph.
Wind gusts 40 to 50 mph are possible.
Strong thunderstorms will be near...
Camden around 815 PM EDT.
Vienna, Sylvan Beach and Verona Beach around 825 PM EDT.
Boonville, Rome and Blossvale around 830 PM EDT.
Other locations impacted by these storms include Stokes Corner,
Hawkinsville, Jewell, Florence and Delta Lake State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4353 7510 4346 7516 4335 7510 4327 7527
4315 7568 4324 7588 4332 7586 4334 7588
4348 7581 4342 7553 4361 7511
TIME...MOT...LOC 2347Z 295DEG 26KT 4380 7556 4365 7569 4353 7563 4346
7580 4339 7603
JurewiczSpecial Weather Statement
National Weather Service Binghamton NY
833 PM EDT Thu Jul 11 2019
NYZ009-120115-
Northern Oneida NY-
833 PM EDT Thu Jul 11 2019
...STRONG THUNDERSTORM WILL AFFECT...NORTHERN ONEIDA COUNTY UNTIL 915
PM EDT...
At 832 PM EDT, Doppler radar was tracking a strong thunderstorm near
Camden, moving east at 25 mph.
Small hail and winds in excess of 40 mph will be possible with this
storm.
Locations impacted include...
Camden, Boonville, Forestport, Florence, Ava, Alder Creek, Point
Rock, North Western, Hawkinsville and Pixley Falls State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with this storm, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4336 7518 4331 7583 4339 7586 4347 7582
4348 7578 4342 7553 4356 7523
TIME...MOT...LOC 0032Z 259DEG 23KT 4343 7572
BJGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
1133 PM EDT THU JUL 11 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 PM HEAVY RAIN POINT ROCK 43.38N 75.55W
07/11/2019 M2.20 INCH ONEIDA NY TRAINED SPOTTER
HEAVY RAIN WAS STILL ONGOING AT MEASUREMENT.
&&
MDPPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
1156 PM EDT THU JUL 11 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1148 PM FLOOD NEW LONDON 43.20N 75.60W
07/11/2019 ONEIDA NY 911 CALL CENTER
SOME STREET FLOODING IN PROGRESS AS PER DISPATCH FEED.
&&
MDPThe Ft Drum radar (KTYX), 45 km away, was scanning. The volume nearest the first event began at 04:15 UTC.
1 flash flood. Local standard time, as filed.
Heavy rainfall washed out a culvert and large section of pavement on Slater Road near Christian Brook.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2019Every state in 2019This day in weather historyWarnings in New York, July 2019
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: 846871.