Two severe thunderstorms developed in Oneida County in Central New York during the early morning hours of the 30th. These storms developed in response to an upper level low over southern Quebec.
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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.
Two severe thunderstorms developed in Oneida County in Central New York during the early morning hours of the 30th. These storms developed in response to an upper level low over southern Quebec.
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 30, 3:15 AM EST, 1 hour 23 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Binghamton NY 415 AM EDT Sun Jun 30 2019 .SYNOPSIS... Scattered showers and isolated thunderstorms will occur today as an upper level low drops southeast out of Canada. High pressure will return on Monday with dry weather. It will turn warmer and more humid mid to late week with a chance for showers and thunderstorms during the daylight hours. && .NEAR TERM /THROUGH MONDAY/... An upper level low over southern Quebec early this morning will drop southeast across northern New York State later this morning to near Cape Cod by this evening. This system will bring cloudy to mostly cloudy skies to the area along with scattered showers. The showers will be most persistent from the western Mohawk Valley to the western Catskills. Since this area will be closest to the cold core aloft enough instability will be present for an isolated thunderstorm. By mid/late afternoon the activity will begin to diminish. Mainly dry conditions are expected across the western Finger Lakes region and central southern tier. Steep low level lapse rates this afternoon will produce northwest winds gusting around 25 mph. Highs will only reach the upper 60s to lower 70s with the valley areas of northeast Pennsylvania in the mid 70s. Tonight/Monday...Both ridging aloft and at the surface will make for a dry period with mostly sunny skies on Monday. Clearing skies and lght winds tonight will allow temperatures to drop into the lower to middle 50s. Highs on Monday will range in the mid 70s to around 80. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/... Our forecast area will be under a northwest flow regime for this period, as an upper level ridge builds over the Southeast and Ohio Valley. Several shortwave disturbances will ripple through the NW flow; bringing better chances for showers and thunderstorms. Latest guidance has slowed the first system down by a few hours, and now looks to move through our area late Monday night into Tuesday morning. There does not appear to much instability over the region Monday night/ early Tuesday...so went with showers in the forecast for now...but cannot completely rule out an embedded thunderstorm. Later in the day Tuesday and into Tuesday night the consensus of the guidance is for mainly dry weather. Then, a warm front lifts through the area during the day Wednesday bringing increasing instability and humidity. This will bring a renewed chance for scattered showers and thunderstorms Wednesday afternoon and evening; especially for our western and central zones. Temperatures through the short term period will be near to slightly above average. Overnight lows will be in the upper 50s to lower 60s and highs 80-85 Tuesday...then warming to 83-88 Wednesday. Dew points are forecast to be mainly between 60-65 making it feel at least somewhat humid. As mentioned above dew points and overall humidity levels rise late in the day Wednesday as the warm front moves through. && .LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/... Flat upper level ridge gradually builds over the area Wednesday night and Thursday as a weak Bermuda high develops off the East Coast. This will put Central NY and Northeast PA under a return southerly flow late week. Increasing temperatures and humidity levels are expected Thursday, Friday and likely into Saturday. This will also create increasing instability, and as weak shortwave disturbances moves through the ridge will allow for scattered showers and thunderstorms each afternoon and evening. Right now have 40-50 chance PoPs for those showers/storms each day Thursday, Friday and Saturday. Current guidance would indicate a slightly higher chance for thunderstorms Friday and Saturday (compared to Thursday) as a more pronounced shortwave moves through. In fact, latest guidance indicates a cooler, Canadian front moving through either late Saturday or Sunday. If this front does indeed make it through our area things should dry out, with lower temperatures and humidity levels by next Sunday. Another main story for this timeframe will be the warm summer temperatures. We're forecasting temperatures to be between 5 to 10 degrees above the seasonal average Thursday through Saturday. Look for highs in the mid to upper 80s each day (with a few warmer valley locations around 90). Overnight lows will stay muggy, only dipping into the mid to upper 60s. Peak daytime heat indices are forecast to be 88-95 each afternoon. As mentioned above, likely cooling off a bit by next Sunday; with highs back into the upper 70s and lower 80s. && .AVIATION /08Z SUNDAY THROUGH THURSDAY/... An upper level low will drop into northern New York State this morning reaching the Cape Cod area by this evening. This system will bring MVFR ceilings to KRME/KSYR/KITH/KBGM from around 12Z to early afternoon along with light showers to KRME/KSYR. By afternoon ceilings will lift to low VFR with just scattered clouds this evening. At KELM/KAVP ceilings around 4K feet will develop by mid morning then scatter out this evening. Winds becoming northwest this morning at 10-15 knots with gusts 20-25 knots. Outlook... Monday... VFR. Monday night and Tuesday...mainly VFR but possible restrictions in scattered showers and maybe a thunderstorm. Tuesday night and Wednesday...VFR. Thursday...mainly VFR but possible restrictions in scattered showers and thunderstorms. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...RRM NEAR TERM...RRM SHORT TERM...MJM LONG TERM...MJM AVIATION...RRM
Hazardous Weather Outlook National Weather Service Binghamton NY 310 AM EDT Sun Jun 30 2019 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-010715- 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- 310 AM EDT Sun Jun 30 2019 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Ft Drum radar (KTYX), 67 km away, was scanning. The volume nearest the first event began at 09:37 UTC.
2 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds brought down several trees.
Strong thunderstorm winds brought down multiple power lines.
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, June 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: 838390, 838391.