Thunderstorms developed along a frontal boundary during the early evening hours of the 23rd. Some of these thunderstorms became severe in Oneida County, NY, causing mainly tree damage.
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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.
Thunderstorms developed along a frontal boundary during the early evening hours of the 23rd. Some of these thunderstorms became severe in Oneida County, NY, causing mainly tree damage.
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 May 23, 6:41 PM EST, 15 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Binghamton NY 741 PM EDT Thu May 23 2019 .SYNOPSIS... A cold front will push through the area this evening bring scattered thunderstorms, followed by cooler and drier air. Another front will approach for Saturday and will bring you another opportunity for showers and strong thunderstorms. && .NEAR TERM /THROUGH FRIDAY/... 730 PM Update...Instability has increased out ahead of the final shortwave, which is now quickly crossing lake Ontario. MLCAPE has reached 500-900 J/Kg, with Effective SRH values 300-400 m2/s2 and 0-6km shear increased between 60-70 kts. Convection has fired up just ahead of this wave across Central NY and parts of NE PA. These thunderstorms will quickly race across the region (WNW to ESE) over the next few hours. The activity should move out of our CWA by 10PM to Midnight. Have issued several severe thunderstorm warnings already, and several more may be needed...please stay weather aware this evening and have an effective way to receive timely warnings. 600 PM Update... Have made several adjustments to the forecast based on latest trends and high resolution models. Bottom line is that high shear has overcome very weak CAPE today, limiting severe weather potential, and overall thunderstorm development. Multiple upper waves also may not have had enough wavelength separation from each other with a second short wave running into an area of subsidence and drying air behind the wave that came through this morning. A third upper wave moving from northern Michigan into Ontario has triggered isolated activity along the Niagara Frontier. The CAMS models continue to want to fire convection ahead of this feature this evening. Models have not performed well today, so confidence is much, if any, storm activity is low. That said, will still sweep some chance PoPs across our northern counties this evening to account for this feature and residual moderate instability lingering in the area. Most of the southern half of our forecast area should be relatively rain free. Previous discussion... Threat for severe storms highly dependent on the amount of heating and the accompanying instability we can develop. Sat images show plenty of clouds all the way back to Michigan, but it does look likes some partial clearing is developing over NE Ohio into Western NY and PA trying to work into the area. Plenty of low level shear in place so we will continue to monitor thunderstorms and the possibility of another Watch. Best chance it seems like would be over the NEPA counties where better shear and the best chance for instability exists. Otherwise cooler air behind the front will work in this evening and Friday. Some cold advection clouds will likely develop over the higher terrain, mainly east of I-81 where a few sprinkles are possible into Friday morning. Beyond that, dry conditions will continue into Friday night as high pressure builds into the area. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/... Rather complex but ill defined system races through on Saturday and brings yet another chance for severe weather. Warm frontal type feature races through Saturday morning developing a few showers and perhaps a rumble of thunder. This barely clears the northern area as a cold front plows on from the west with more serious convection. With the warm front still nearby, concern would be for low level shear/helicity would be available to any cell that develops increasing the chance for damaging storms. Of course there are model timing difference but the front should clear the area in the late evening or just after midnight. Front then stalls around the Mason/Dixon line early Sunday. This should keep most convection south of the forecast area but there is a chance that a few showers to even thunderstorms could sneak back into NEPA. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... Sunday night through Monday night: High pressure builds in and moves the region with another calmer period in time for the holiday. Still pleasant temperature wise with lows in the 50's and highs in the 70's. Tuesday through Wednesday night: A mid-level ridge over the southeast deflects the next system into the Great Lakes. An associated warm front will provide the lift and moisture for some additional shower and thunderstorm chances in this period. Higher chances are currently present across northern portions of central New York but that will be dependent on the strength and location of the ridge over the southeast. Our region may see 80's by Wednesday with ensemble guidance potentially too cool if the boundary ends up north of our region. && .AVIATION /00Z FRIDAY THROUGH TUESDAY/... Cold front sweeping through the area this evening will bring showers and thunderstorms, along with brief restrictions to MVFR levels and gusty winds. Behind the front, cold advections will lower the ceilings to MVFR in most places as a solid strato-cu deck moves in late overnight. Drier air and mixing will return all stations to VFR later Friday afternoon. Outlook... Friday night and Saturday...VFR. Saturday night...Showers and thunderstorms with associated restrictions likely. Sunday through Tuesday...Mainly VFR. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...DGM NEAR TERM...DGM/JAB/MJM SHORT TERM...DGM LONG TERM...DGM AVIATION...DGM/MJM
Hazardous Weather Outlook National Weather Service Binghamton NY 433 PM EDT Thu May 23 2019 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-242045- 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- 433 PM EDT Thu May 23 2019 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Tonight. There is a slight risk for severe thunderstorms through sunset. Storms late this afternoon and evening will generally be isolated but may produce locally damaging winds or large hail. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Another round of potentially strong to severe thunderstorms is possible late Saturday. Please check back for updates through the week on this evolving situation. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures. JRK
Special Weather Statement
National Weather Service Binghamton NY
207 PM EDT Thu May 23 2019
PAZ044-047-048-072-231830-
Southern Wayne PA-Luzerne PA-Lackawanna PA-Pike PA-
207 PM EDT Thu May 23 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHEASTERN
LACKAWANNA...SOUTHWESTERN WAYNE...SOUTHEASTERN LUZERNE AND
SOUTHWESTERN PIKE COUNTIES UNTIL 230 PM EDT...
At 207 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Glendale to near Freeland. Movement was
east at 50 mph.
Small hail and winds in excess of 40 mph will be possible with these
storms.
Locations impacted include...
Bear Creek, Dupont, Moscow, Sterling, White Haven, Laurel Run,
Lehigh, Penn Lake Park, Bear Creek Village and Greentown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4106 7603 4134 7572 4134 7491 4114 7510
4115 7515 4125 7513 4123 7551 4122 7555
4112 7563 4113 7568 4109 7577 4105 7577
4101 7573 4101 7574
TIME...MOT...LOC 1807Z 273DEG 48KT 4128 7572 4109 7592
JRKSpecial Weather Statement
National Weather Service Binghamton NY
629 PM EDT Thu May 23 2019
NYZ009-037-232315-
Southern Oneida NY-Northern Oneida NY-
629 PM EDT Thu May 23 2019
...STRONG THUNDERSTORM WILL AFFECT...EAST CENTRAL ONEIDA COUNTY UNTIL
715 PM EDT...
At 628 PM EDT, Doppler radar was tracking a strong thunderstorm near
Delta Lake, or 9 miles north of Rome, moving east at 40 mph.
Dime size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Rome, Trenton, Steuben, Ava, Remsen, Holland Patent, Prospect,
Barneveld, Alder Creek and Barnveld.
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 4333 7508 4331 7511 4330 7515 4326 7516
4325 7515 4326 7514 4324 7512 4323 7508
4322 7507 4328 7553 4341 7559 4346 7510
TIME...MOT...LOC 2228Z 261DEG 36KT 4335 7544
MJMThe Ft Drum radar (KTYX), 51 km away, was scanning. The volume nearest the first event began at 23:56 UTC.
8 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds knocked down a tree onto wires.
Strong thunderstorm winds knocked down a tree on wires.
Strong thunderstorm winds knocked down a tree onto a house.
Strong thunderstorm winds knocked down multiple trees.
Strong thunderstorm winds knocked down multiple trees.
Strong thunderstorm winds knocked down trees on wires.
Strong thunderstorm winds knocked down wires.
Strong thunderstorm winds knocked down wires.
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, May 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: 828435, 828443, 828444, 828445, 828446, 828449, 828450, 828451.