A mid level short wave moving over portions of Central New York sparked showers and thunderstorms during the afternoon and early evening of the 16th. Some of these storms became severe and caused mainly tree and power line damage.
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 mid level short wave moving over portions of Central New York sparked showers and thunderstorms during the afternoon and early evening of the 16th. Some of these storms became severe and caused mainly tree and power line 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 Jul 16, 12:42 PM EST, 1 hour 31 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 142 PM EDT Tue Jul 16 2019 .SYNOPSIS... High pressure will move offshore today. The heat and humidity builds through the end of the week thanks to southerly return flow around the Bermuda high. A series of fast-moving disturbances tracking across the northern U.S. along with tropical moisture will produce several rounds of showers and storms through the end of the week. && .NEAR TERM /THROUGH WEDNESDAY/... 1045 AM update...Northern stream short wave has moved east of the region this morning with clouds and isolated showers now over northern New York. Much of the region is now partly to mostly sunny with temperatures rising rapidly. This afternoon diurnal instability and a mid level short wave will bring a round of showers and thunderstorms through the area. Best concentration of storms will be over the twin tiers where likely POPs will be advertised. Precipitable water values will increase to around 2 inches this afternoon, so heavy rain will be mentioned in any convection. previous discussion... A weak shortwave trough embedded in fast zonal flow on the northern periphery of the Southeast U.S. ridge will progress thru CNY this morning. Not expecting more than just a passing shower this morning mainly north of the Southern Tier. However, this morning's activity will influence the setup for next round this afternoon. Specifically, a differential mixing boundary on the southern flank of the debris clouds and/or outflow boundaries leftover from this morning could provide a focus for showers and storms this afternoon. PoPs are highest (60-70 percent) across the Southern Tier of NY - the latest CAMs have converged toward this area for convective initiation during peak heating hours this afternoon (1-3 PM). Convection should eventually increase in coverage and expand into NEPA/the Finger Lakes region later in the afternoon as additional forcing for ascent arrives with a piece of mid-level shortwave energy ejecting downstream of the remnant circulation from Barry. With the influx of tropical moisture and PWATs nearing 2", these storms will likely contain torrential downpours. There is a concern for locally heavy rainfall that could lead to poor drainage or isolated flash flooding. A worst-case scenario, which are supported by a few HREF CAM members, would be for storms to organize into a west-east oriented line along the boundary and track eastward over the same areas. Corfidi vectors indicate a brief (few hours) window when the environment may support backbuilding/convective training. A portion of the region is outlooked in a marginal risk for excessive rainfall today. We may need to reevaluate issuing a short-fused Flash Flood Watch later this morning after the mesoscale details/threat area become clearer and if the flash flood risk appears to be more organized as outlined above in the worst-case scenario. The other weather story today will be the return of hot and humid conditions. Heat indices will peak in the lower 90s this afternoon in the warmer urban valleys of CNY and NEPA. Convection should wane after sunset this evening in wake of the shortwave disturbance and as the boundary layer stabilizes with the loss of daytime heating. However, the break will be brief as the next round of showers and storms moves in from the west overnight into Wednesday morning. This activity will be associated with a cold front that is approaching from the northwest and the tropical remnants of Barry that will be lifting out of the Midwest. PoPs are highest during the morning hours across our western and northern zones of CNY owing to the close proximity of the approaching cold front. Some locally heavier downpours and poor drainage flooding are possible in the morning with this activity. There may be a brief lull in the precip toward midday on Wednesday after the morning activity exits east of the area. Despite the cold front becoming increasingly diffuse as it slowly progresses southward into CNY, it should provide a focus for additional convective development during peak afternoon heating. The main threat with these storms will once again be locally heavy rainfall and poor drainage/flash flooding. The flood risk would be greatest if the same locations that receive heavy rainfall today experience it again tomorrow. Much of the region is under a slight risk for excessive rainfall on Wednesday. A secondary storm threat is locally strong winds. This threat looks to be confined to our far southern zones (Wyoming Valley) in the open warm sector south of the front. && .SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/... Showers and thunderstorms continue into Wednesday night, with a lingering risk for heavy rain in storms before 6Z Thursday. Showers and storms will continue the rest of Thursday as the mid/upper level trough, and weaker surface boundary, continues to pass through the area. The greatest chances would be across the Catskills and far NE PA with these passing features. Fairly weak flow across the area would indicate that storms could be slow moving, and with PWATs still generally in the 1-1.25 inch range for Thursday, some heavy downpours in storms cannot be ruled out. However, given a comparatively drier environment as the tropical remnants continue to push eastward, heavy rain will become less of a concern. Looking otherwise hot and muggy Thursday, with temperatures starting in the upper 60s and peaking in the 80s. Spotty showers and thunderstorms linger Thursday night while temperatures fall back into the upper 60s and low 70s. && .LONG TERM /FRIDAY THROUGH TUESDAY/... A ridge of high pressure begins to build across the SE US for Friday and next weekend, but the ridge looks to flatten into our northern zones. With some elevated instability, additional showers and thunderstorms cannot be ruled out especially across north-central NY. Heat will also be a concern Friday and into the weekend as well with the aforementioned ridging helping to bring in even warmer temperatures. Morning lows hover generally in the low 70s Friday and Saturday, with highs in the upper 80s and low 90s Friday through Saturday. Dewpoints hover generally in the low 70s throughout. Apparent temperatures Friday and Saturday peak around 96-102 across much of central NY, and a couple degrees warmer across the Southern Tier and NE PA. Heat headlines will likely be issued further on in the week. Chances for showers and storms continue Sunday and MOnday with another frontal system tracking through the region, then wet weather looks to taper off later Monday evening behind the exiting system. Otherwise, there will be a relief from the warm weather by the end of the extended period. Temperatures Sunday start in the upper 60s and peak in the upper 80s to near 90F. Morning lows in the mid/upper 60s are expected Monday morning, with temperatures peaking in the low/mid 80s before dropping back into the 60s overnight. && .AVIATION /18Z TUESDAY THROUGH SUNDAY/... Diurnal instability and a passing mid level short wave will bring thunderstorms to the terminals from mid afternoon into the early evening. Conditions most likely with this convection will be MVFR due to visibility restrictions in moderate to heavy rain. Once this activity passes most of the overnight period will be VFR with mid level clouds. Toward morning a surface boundary dropping south through the region along with a very moist environment will bring a period of moderate to heavy showers. Thunderstorms are also possible but areal coverage at this time is uncertain and not included. At KRME/KSYR, MVFR/Alternate Required showers will begin around 09Z, at KITH/KELM/KBGM around 15Z. At KAVP,the activity is not expected until mid/late afternoon. Southwest winds 5-10 kt into early evening then light and variable overnight becoming southwest again at 5-10 knots. Outlook... Wednesday night through Sunday...This unsettled weather pattern continues with a series of disturbances providing chances for showers and storms. Brief/localized restrictions possible. Even with increasing moisture at the surface, the potential for fog each night will depend on how much debris clouds are leftover from diurnal convection. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...JRK NEAR TERM...JRK/RRM SHORT TERM...HLC LONG TERM...HLC AVIATION...RRM
Hazardous Weather Outlook National Weather Service Binghamton NY 456 AM EDT Tue Jul 16 2019 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-170900- 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- 456 AM EDT Tue Jul 16 2019 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Today and tonight. Torrential downpours with thunderstorms this afternoon and evening will be capable of producing heavy rainfall in a short period. This may lead to localized flash flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. The threat for locally heavy rainfall and isolated flash flooding continues into Wednesday and Wednesday evening as tropical moisture from the remnants of Barry passes through the area. The heat and humidity will build late in the week. There is a potential for excessive heat on both Friday and Saturday with maximum heat indices each afternoon in the valleys between 100 and 105 degrees. Heat indices in the mid to upper 90s may linger into Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. PAZ043-044-047-048-072-170900- Wyoming-Lackawanna-Luzerne-Pike-Southern Wayne- 456 AM EDT Tue Jul 16 2019 This Hazardous Weather Outlook is for northeast Pennsylvania. .DAY ONE...Today and tonight. There is a low probability for widespread hazardous weather. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Torrential downpours with thunderstorms Wednesday afternoon and evening will be capable of producing heavy rainfall in a short period. This may lead to localized flash flooding. The heat and humidity will build late in the week. There is a potential for excessive heat on both Friday and Saturday with maximum heat indices each afternoon in the valleys between 100 and 105 degrees. Heat indices in the upper 90s to near 100 degrees may linger into Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Binghamton NY
221 PM EDT Tue Jul 16 2019
NYZ018-161845-
Onondaga NY-
221 PM EDT Tue Jul 16 2019
...STRONG THUNDERSTORM WILL AFFECT...NORTHERN ONONDAGA COUNTY UNTIL
245 PM EDT...
At 221 PM EDT, Doppler radar was tracking a strong thunderstorm over
Baldwinsville, moving east at 20 mph.
Small hail and strong wind gusts will be possible with this storm.
Locations impacted include...
Syracuse, Clay, Cicero, De Witt, Lysander, Van Buren, Baldwinsville,
North Syracuse, Solvay and East Syracuse.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent 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.
&&
LAT...LON 4324 7612 4320 7608 4319 7601 4303 7603
4307 7650 4310 7650 4311 7647 4322 7648
4323 7630 4320 7627 4322 7626 4324 7627
4324 7626 4320 7622 4322 7620 4324 7621
4327 7620
TIME...MOT...LOC 1821Z 273DEG 20KT 4316 7637
DJNSpecial Weather Statement National Weather Service Binghamton NY 259 PM EDT Tue Jul 16 2019 NYZ017-018-161930- Onondaga NY-Southern Cayuga NY- 259 PM EDT Tue Jul 16 2019 ...STRONG THUNDERSTORM WILL AFFECT...NORTHERN CAYUGA AND SOUTHWESTERN ONONDAGA COUNTIES UNTIL 330 PM EDT... At 259 PM EDT, Doppler radar was tracking a strong thunderstorm over Melrose Park, or near Auburn, moving east at 25 mph. Small hail and strong wind gusts will be possible with this storm. Locations impacted include... Auburn, Owasco, Fleming, Skaneateles, Union Springs, Niles, Melrose Park, Throopsville, Mapleton and Fosterville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent 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. && LAT...LON 4285 7671 4301 7666 4296 7625 4278 7630 TIME...MOT...LOC 1859Z 275DEG 24KT 4289 7652 DJN
The Binghamton radar (KBGM), 93 km away, was scanning. The volume nearest the first event began at 19:13 UTC.
7 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds brought down multiple trees and collapsed tents in Emerson Park.
Strong thunderstorm winds brought down trees and wires near 1920 County Route 15.
Strong thunderstorm winds brought down multiple trees.
Strong thunderstorm winds brought down multiple trees.
Strong thunderstorm winds brought down multiple trees in the Cortland area.
Strong thunderstorm winds brought down multiple tree limbs on Carr Hill Road.
Strong thunderstorm winds brought down trees and wires on West River Road near Snyder Hill Road.
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: 842794, 842795, 842796, 842797, 842798, 842799, 842800.