A cold front moved through Central New York during the afternoon of the 29th, sparking showers and thunderstorms. Some of these storms became severe and produced mainly tree 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 cold front moved through Central New York during the afternoon of the 29th, sparking showers and thunderstorms. Some of these storms became severe and produced 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 Jul 29, 11:59 AM EST, 4 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 1259 PM EDT Wed Jul 29 2020 .SYNOPSIS... A weak cold front will approach the area from the Great Lakes today, bringing a chance for some scattered showers and thunderstorms through Thursday. High pressure slowly builds into the region Friday and Saturday. However, a low pressure system tracks through the region Sunday and Monday, bringing additional showers and thunderstorms to the area. && .NEAR TERM /THROUGH THURSDAY/... 1250 PM Update: The forecast remains on track and minimal changes were made with this update. Showers and thunderstorms that developed over Western New York this morning have now begun to enter the Finger Lakes region. With some increasing instability expected throughout the afternoon, still expecting some isolated stronger to potentially severe thunderstorms in Central NY. Main threats will be gusty winds, along with heavy downpours. Early Morning Update: A cold frontal boundary will slowly move into the area by tonight and persist over the region through Thursday. Enough moisture and lift look present across central NY to allow for scattered showers and thunderstorms to develop during the afternoon across the Finger Lakes. These showers and thunderstorms should still have moisture to work with till they reach the PA/NY border around sunset. By the time we get into the Scranton area, model soundings are very dry with even lower instability. Model soundings further north in NY show an inverted V signature in the lower levels coupled with mid-level dry air, but not enough to prevent thunderstorm formation. As a result, gusty winds will be a concern with the thunderstorms. Modeling checks up the showers and thunderstorms for a time in the evening as well across the Southern Tier. While storm motions look fast, repeat thunderstorms may result in isolated occurrences of poor drainage flooding. Highs today should get well into the 80s before any thunderstorms were to occur. That also makes the hourly temperature trends difficult late this afternoon with some spots seeing rain cooled air and others not seeing that. Lows should get down into the 60s again with another warm summer day Thursday in the 80s. With the trough lingering around a few additional showers or thunderstorms can not be ruled out Thursday afternoon and evening. && .SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/... 330 AM Update Rather quiet and seasonable weather expected during the short term period. Perhaps a lingering isolated shower or t'storm Thursday evening, but then drying out overnight as a weak surface front drops south through the forecast area. The surface front likely gets hung up just south of our CWA border across east-central PA during the day Friday. A broad upper level trough will be in place across northern New England and southern Canada. For much of our region expect a dry northerly flow through the day. It will be less humid with afternoon dew points in the mid-50s to lower 60s. Cannot rule out an isolated shower or thunderstorms, especially down across the Poconos region....otherwise mostly sunny with highs in the upper 70s to mid-80s. Friday night and Saturday morning, the boundary drifts a bit further south in PA as a weak surface high builds in from the north. This will keep much of CNY and NE PA dry under mostly clear skies. Could see some patchy valley fog as well, but not quite enough confidence on low enough wind speeds and cloud cover to put into the forecast grids just yet. Comfortable with lows in the mid-50s to lower 60s. The front may begin to come back north later Saturday afternoon and evening as a wave of low pressure rides along it, and approaches from the Ohio Valley. Have clouds gradually increasing saturday afternoon along with a slight chance for showers and t'storms along our southwest border zones. Temperatures will be rising a few degrees above average, but humidity levels remain tolerable (dew points again 55-62). Expect high temperatures to reach the low to mid- 80s...except some upper 80s in the Wyoming Valley region. && .LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... 330 AM Update... No major changes to the extended forecast. With that said, the wave of low pressure moving in from the Ohio Valley is trending a bit faster in the latest guidance. Therefore, increased PoPs across the region starting Saturday night, and now have likely PoP on Sunday. Expect showers and embedded thunderstorms across CNY and NE PA during this timeframe. Current model guidance shows the actual surface low tracking west of our area, near Buffalo midday Sunday. This would keep CNY and NE PA in the warmer, more unstable sector. PWATS are progged to reach 1.8 to 2.0 inches on the GFS during this time frame...so heavy downpours are also possible. Rainfall amounts could be 1-2"+ where the steadiest band of rain ultimately tracks. The surface low is forecast to move off to the northeast, into New England Sunday night. This should allow our area to dry out, with just a low chance for a few showers after midnight. Overnight lows Saturday night are 60-65 and daytime highs in the upper 70s to mid-80s. A little more humid and mild Sunday night with lows only dipping down into the mid-60s. A moist, humid and unstable southwesterly flow then dominates our weather pattern for Monday and Tuesday. An upper level low gradually spins closer from the northern Great Lakes area. Therefore have a chance of showers and thunderstorms in the forecast both days, for just about the entire CWA. It likely won't be a total washout these days, just on and off scattered activity expected. Cooler air and lower thicknesses gradually build in with the upper level low. This will knock down surface temperatures somewhat, with seasonable highs in the upper 70s to mid-80s Monday, then in the mid-70s to low 80s by Tuesday and next Wednesday. Model guidance is in fairly good agreement (for being this far out in time) that a robust surface cool front moves through later on Tuesday. This should allow for even lower humidity, generally dry and partly cloudy weather Tuesday night into next Wednesday. && .AVIATION /18Z WEDNESDAY THROUGH MONDAY/... Mainly VFR. Winds at or under 10 knots throughout the TAF period with the exception of any thunderstorm this afternoon or early evening. Confidence is rather high for some storms to move through all TAF sites but KAVP. However, the timing is somewhat uncertain by a couple of hours. Anytime from 18-00Z is still fair game for a brief thunderstorm or two. Also, KBGM and KELM may get hit by several thunderstorms keeping the prospects going just past 00Z Thursday at these sites. Tonight as we get close to 12Z Thursday potential is present for a MVFR/VFR ceiling forming at KITH, KELM and KBGM. However, right now data suggests a higher fog potential and just at KELM which is hinted at in the 12Z TAF. Outlook... Thursday... VFR or MVFR ceiling or fog in the morning. Chance of showers and thunderstorms in the afternoon with brief restrictions. Thursday night through Saturday night...Mainly VFR. Sunday...Occasional restrictions possible in scattered showers or thunderstorms. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...BJG/MWG NEAR TERM...BJG/MWG SHORT TERM...MJM LONG TERM...MJM AVIATION...MWG
Hazardous Weather Outlook National Weather Service Binghamton NY 308 AM EDT Wed Jul 29 2020 NYZ046-057-062-PAZ038>040-043-044-047-048-072-300715- Otsego-Delaware-Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming- Lackawanna-Luzerne-Pike-Southern Wayne- 308 AM EDT Wed Jul 29 2020 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...Thursday through Tuesday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ009-015>018-022>025-036-037-044-045-055-056-300715- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango- Tioga-Broome- 308 AM EDT Wed Jul 29 2020 This Hazardous Weather Outlook is for central New York. .DAY ONE...Today and tonight. Some scattered thunderstorms are possible this afternoon and evening. A few of these storms may produce gusty winds. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. 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. Please relay any information about severe weather to the NWS while following local, state and CDC guidelines.
Special Weather Statement
National Weather Service Binghamton NY
1243 PM EDT Wed Jul 29 2020
NYZ015-291745-
Yates NY-
1243 PM EDT Wed Jul 29 2020
...STRONG THUNDERSTORM WILL AFFECT...NORTHERN YATES COUNTY UNTIL 145
PM EDT...
At 1242 PM EDT, Doppler radar was tracking a strong thunderstorm near
Vine Valley, or 11 miles southwest of Canandaigua, moving east at 25
mph.
Strong wind gusts will be possible with this storm.
Locations impacted include...
Penn Yan, Benton, Potter, Middlesex, Rushville, Dresden, Ferguson
Corners, Mays Mills, Keuka Park and Vine Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If on or near a lake, get out of the water and move indoors or inside
a vehicle. Remember, lightning can strike out to 10 miles from the
parent thunderstorm. If you can hear thunder, you are close enough to
be struck by lightning. Move to safe shelter now! Do not be caught on
the water in a thunderstorm.
&&
LAT...LON 4274 7734 4276 7731 4276 7696 4267 7690
4264 7690 4258 7691 4265 7737
TIME...MOT...LOC 1642Z 286DEG 23KT 4274 7740
JABThe Binghamton radar (KBGM), 107 km away, was scanning. The volume nearest the first event began at 17:01 UTC.
7 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds brought down trees and wires.
Strong thunderstorm winds brought down wires near Brown Street and South Avenue.
Strong thunderstorm winds brought down wires between County Route 139 and Parish Road.
Strong thunderstorm winds brought down trees and wires near Friend Road and Comstock Road.
Strong thunderstorm winds brought down several trees and damaged two boats.
Strong thunderstorm winds brought down a tree on West Town Line Road.
Strong thunderstorm winds brought down trees and wires along Miller Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2020Every state in 2020This day in weather historyWarnings in New York, July 2020
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: 913178, 913180, 913181, 913182, 913184, 913185, 913186.