A cold front moved through Central New York during the early to mid afternoon. This triggered a broken line of thunderstorms, one which became severe.
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 cold front moved through Central New York during the early to mid afternoon. This triggered a broken line of thunderstorms, one which became severe. This storm knocked down some trees and dropped severe hail in the Hamilton, NY and Hubbardsville, NY areas.
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 10, 1:27 PM EST, 33 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Binghamton NY 227 PM EDT Fri May 10 2019 .SYNOPSIS... A cold front passes this afternoon and evening with showers and thunderstorms. High pressure builds in behind the front, leading to a dry Saturday. More rain is likely starting Sunday with another area of low pressure. && .NEAR TERM /THROUGH SATURDAY/... As of 220 PM Friday... Cold front is currently crossing the region and should move east of the forecast area by tonight. Showers and storms have developed along the front. However, destabilization out ahead of the front is meager...with maybe 300 to 500 J/Kg of CAPE at best. Wind fields are strong and there will be gusty winds with these showers/storms, but the damaging winds potential is low. The best threat for stronger winds will be across the SE forecast area, where temperatures have climbed into the lower 70s with dew points in the low 60s. However, very dry air aloft is going to limit the convection, and this has been noticed with current storms that have formed, with tops struggling to climb above 20K feet. Behind the cold front, high pressure drops southeast into the Great Lakes late tonight. Much cooler temperatures will be pouring in as well. Have considered issuing a frost advisory for Steuben County, but low level flow looks a bit too strong to allow temperatures from going to low. Still added the mention of some patchy frost. High pressure will keep us dry through much of the day on Saturday, but it will be cool, with temperatures running about 5 degrees below normal. Our next system will approach from the south Saturday night and have added the mention for some showers overnight, with best chance across the south. && .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY/... The region will be situated between high pressure to our north over southeastern Canada and low pressure to our south across the central Mid-Atlantic states through the end of the weekend. The heaviest and steadiest rain looks to setup to our south near the stationary front. However, a series of weak shortwave troughs, favorable upper- level jet dynamics in the equatorward entrance region of a jet streak and modest isentropic lift on the northern fringe of the low- level baroclinic zone will support the northward expansion of light rain into our area but there a questions on how quickly this happens and how far north the precip gets given the reinforcement of dry air from the Canadian high. Some of the more aggressive guidance (e.g., GFS and ECMWF) indicates the rain quickly overspreading the entire forecast area Saturday night while there is another camp that delays the rain until Sunday and keeps it confined to NEPA and the Southern Tier of NY. Accordingly, PoPs increase from north to south across the CWA. It's still too early to call Mother's Day a wash out at this point especially as you go north through CNY. Below normal temps with lows in the upper 30s to lower 40s Saturday night and a potential for patchy frost in the southern Tug Hill Plateau. Highs on Sunday are only in the 50s owing to the cool air being advected southward from the Canadian high as well as the presence of clouds and rain. With that said, there is a conditional scenario for highs to reach 60F in the western Mohawk Valley on Sunday if the denser cloud cover and precip remains just to the south. && .LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/... Sunday night through Tuesday...This cool and damp pattern looks to persist across the region into early next week as an upper low progresses slowly eastward across the Great Lakes and Northeast Monday and Tuesday. Surface reflection of this system includes a primary low/inverted trough meandering just to our south/west across the Ohio Valley-Mid-Atlantic region. High pressure progressing eastward to the Canadian Maritimes will allow winds to veer out of the east and advect cool maritime air well inland into our region. Given the lack of deeper sub- tropical moisture and instability north of the boundary, precip rates/rainfall amounts will generally be light through the period. Tuesday night and Wednesday...There is hope for a dry stretch (albeit brief) as the upper low finally exits the region and a shortwave ridge/surface high builds in from the west. NW flow in wake of the low and potentially some cloud cover originating off the lakes will keep conditions cooler than normal for mid May. Wednesday night and Thursday...The next shortwave trough/Alberta Clipper system moves southeastward into the northeastern part of the CONUS. There is still plenty of model disagreement regarding the track (mainly how far south this system digs). A more progressive system would favor a northern track through our area, bringing a round of showers with it. However, a more amplified system could keep us dry with the clipper tracking to our south. PoPs were kept at low chance given the forecast uncertainty. && .AVIATION /18Z FRIDAY THROUGH WEDNESDAY/... As of 150 PM Friday... Cold front is sliding through the region this afternoon and kicking off showers and a few thunderstorms. IFR conditions will be possible in heavier showers/storms and strong gusty winds will also be a possibility. Improving conditions later tonight as high pressure builds in behind the front, however it is possible that some MVFR ceilings linger behind the front. VFR conditions expected on Saturday, with next system moving in overnight into Sunday morning. Unsettled conditions with possible restrictions through the first part of next week. Outlook... Saturday through Saturday Night...mainly VFR. Sunday through Tuesday...Restrictions expected in rain. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...MPK NEAR TERM...MPK SHORT TERM...JRK LONG TERM...JRK AVIATION...MPK
Hazardous Weather Outlook National Weather Service Binghamton NY 330 AM EDT Fri May 10 2019 NYZ045-046-055>057-062-PAZ038>040-043-044-047-048-072-110730- Chenango-Otsego-Tioga-Broome-Delaware-Sullivan-Bradford-Susquehanna- Northern Wayne-Wyoming-Lackawanna-Luzerne-Pike-Southern Wayne- 330 AM EDT Fri May 10 2019 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Today and Tonight. A cold front will move across the area this afternoon and early evening, accompanied by showers and some thunderstorms. A few of the strongest thunderstorms could contain locally damaging winds. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ009-015>018-022>025-036-037-044-110730- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland- 330 AM EDT Fri May 10 2019 This Hazardous Weather Outlook is for central New York. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Binghamton NY
120 PM EDT Fri May 10 2019
NYZ018-101800-
Onondaga NY-
120 PM EDT Fri May 10 2019
...STRONG THUNDERSTORM WILL AFFECT...NORTHERN ONONDAGA COUNTY UNTIL
200 PM EDT...
At 120 PM EDT, Doppler radar was tracking a strong thunderstorm near
Jordan, or near Baldwinsville, moving east at 30 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations impacted include...
Onondaga, Syracuse, Clay, Cicero, De Witt, Lysander, Van Buren,
Baldwinsville, North Syracuse and Solvay.
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.
Cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
Additional statements will be issued as conditions warrant.
&&
LAT...LON 4322 7609 4320 7608 4318 7599 4313 7595
4309 7598 4308 7592 4297 7591 4302 7649
4323 7647 4323 7630 4320 7628 4321 7626
4324 7627 4324 7626 4320 7622 4322 7620
4326 7621 4326 7618
TIME...MOT...LOC 1720Z 274DEG 27KT 4309 7639
DABSpecial Weather Statement
National Weather Service Binghamton NY
134 PM EDT Fri May 10 2019
NYZ017-018-036-101815-
Onondaga NY-Southern Cayuga NY-Madison NY-
134 PM EDT Fri May 10 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...WEST CENTRAL
MADISON...CENTRAL CAYUGA AND SOUTHERN ONONDAGA COUNTIES UNTIL 215 PM
EDT...
At 134 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Marcellus to near Scipio Center. Movement
was east at 30 mph.
Small hail and winds in excess of 40 mph will be possible with these
storms.
Locations impacted include...
Onondaga, Syracuse, Pompey, Owasco, Cazenovia, Fleming, Otisco,
Skaneateles, Nelson and Marcellus.
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 4295 7568 4278 7599 4277 7627 4274 7628
4277 7671 4302 7634
TIME...MOT...LOC 1734Z 268DEG 25KT 4292 7633 4281 7654
BJGSpecial Weather Statement
National Weather Service Binghamton NY
144 PM EDT Fri May 10 2019
NYZ009-036-037-101845-
Southern Oneida NY-Madison NY-Northern Oneida NY-
144 PM EDT Fri May 10 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...ONEIDA AND
NORTHWESTERN MADISON COUNTIES UNTIL 245 PM EDT...
At 144 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Camden to 7 miles north of
Bridgeport to near Cicero. Movement was east at 30 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations impacted include...
Utica, Rome, Sullivan, Oneida, Kirkland, Lenox, Lee, Verona,
Westmoreland and Vienna.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.
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.
Additional statements will be issued as conditions warrant.
&&
LAT...LON 4342 7555 4336 7508 4333 7508 4330 7515
4327 7516 4325 7515 4323 7508 4316 7512
4304 7522 4291 7543 4297 7591 4308 7592
4309 7598 4313 7595 4318 7599 4316 7588
4332 7587 4333 7588 4348 7582
TIME...MOT...LOC 1744Z 288DEG 27KT 4341 7584 4326 7592 4318 7605
DABSpecial Weather Statement
National Weather Service Binghamton NY
211 PM EDT Fri May 10 2019
NYZ018-036-037-044-101900-
Onondaga NY-Southern Oneida NY-Cortland NY-Madison NY-
211 PM EDT Fri May 10 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHEASTERN
ONEIDA...SOUTHWESTERN MADISON...NORTHERN CORTLAND AND SOUTHEASTERN
ONONDAGA COUNTIES UNTIL 300 PM EDT...
At 211 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Watervale to Tully. Movement was east at
35 mph.
Small hail and winds in excess of 40 mph will be possible with these
storms.
Locations impacted include...
Pompey, Eaton, Paris, Hamilton, Cazenovia, Morrisville, Stockbridge,
Augusta, Nelson and Waterville.
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 4299 7521 4273 7561 4273 7579 4274 7627
4276 7628 4298 7596 4305 7522
TIME...MOT...LOC 1811Z 261DEG 29KT 4291 7595 4281 7614
BJGSpecial Weather Statement
National Weather Service Binghamton NY
245 PM EDT Fri May 10 2019
NYZ009-036-037-101945-
Southern Oneida NY-Madison NY-Northern Oneida NY-
245 PM EDT Fri May 10 2019
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHEASTERN ONEIDA
AND CENTRAL MADISON COUNTIES UNTIL 345 PM EDT...
At 244 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Remsen to near Floyd to Clark Mills to
Stockbridge. Movement was east at 55 mph.
Small hail and winds in excess of 40 mph will be possible with these
storms.
Locations impacted include...
Utica, Rome, Kirkland, Westmoreland, Trenton, Paris, Deerfield,
Floyd, Whitesboro and New York Mills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms, and may lead to
minor flooding. Do not drive your vehicle through flooded roadways.
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.
Additional statements will be issued as conditions warrant.
&&
LAT...LON 4333 7508 4330 7515 4326 7516 4325 7515
4326 7514 4324 7512 4323 7508 4322 7507
4305 7522 4301 7521 4294 7570 4308 7545
4323 7539 4339 7520 4342 7509
TIME...MOT...LOC 1844Z 250DEG 47KT 4336 7519 4325 7532 4311 7538 4299
7556
DABThe Binghamton radar (KBGM), 79 km away, was scanning. The volume nearest the first event began at 18:58 UTC.
3 hail, 2 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds knocked down trees.
Strong thunderstorm winds uprooted a small tree.
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: 827044, 827041, 827045, 827047, 827049.