An approaching cold front sparked showers and thunderstorms in Central New York during the afternoon and early evening of the 29th. 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.
An approaching cold front sparked showers and thunderstorms in Central New York during the afternoon and early evening of the 29th. 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 Aug 29, 2:03 PM EST, 1 hour 34 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 303 PM EDT Sat Aug 29 2020 .SYNOPSIS... A cold front will set off showers and thunderstorms this afternoon, some with gusty winds. Skies will clear Sunday and Monday as high pressure moves into NY and PA. && .NEAR TERM /THROUGH SUNDAY/... 303 PM update... A severe thunderstorm watch is now in effect for Delaware and Otsego Counties. 200 PM update... A disorganized frontal system will push thunderstorms across NY and PA this afternoon. CAPE values will climb to between 1000 and 1500 j/kg across our far eastern FA late this afternoon with 0-6km bulk shear values of 30 to 35 knots. This combination of instability and shear should be sufficient to spawn a few strong thunderstorms, some with gusty winds. Much drier and cooler air will work into the region behind the cold front. A few showers could continue over northeastern sections of the forecast area Sunday morning, but the trend will be for clearing skies. Temperatures will peak around 70 degrees Sunday. Expect clear and cool conditions Sunday night with temperatures falling to between 46 and 50 degrees. && .SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY/... 155 PM UPDATE... High pressure ridged over eastern NY will keep most of Monday dry and seasonable. A short wave with a surface low over the Ohio valley will push moisture eastward into NEPA late in the day with a few showers possible before sunset. Monday will see the wave and low push further east and north as showers overspread much of the area, especially after midnight. Marginal instability south and east may result in a bit of thunder over the NEPA counties late. Tuesday will feature a deeper southwest flow and instability resulting in more widespread showers and scattered thunderstorms ahead of an approaching cold front. With that ends my final forecast discussion after 34 years in the NWS. It's been a great career and I thank you for reading. Stay safe. DGM && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... No changes in the long term. Changeable weather is expected as rather fast moving systems move through in the westerly flow. Best chance for dry weather will be Thursday between cold fronts. Previous discussion continues below. 415 am update... Chance of rain showers will linger Tuesday into early Wednesday although any precipitation should be very light with a narrow axis of drier air situated along the spine of the nrn Appalachians. The overall flow will remain cyclonic which should keep the potential for increased cloud cover and light rain over the region Tue into Wed. Mild temperatures expected Tuesday with highs in the 70s...and overnight lows Tue night into the upper 50s and lower 60s. A push of warm air will likely be felt on Wednesday with highs climbing into the upper 70s and lower 80s, and slightly higher humidity as well. A stretched out cold front will drag across the Northeast late Wed into Wed night, which will act to produce another round of showers and thunderstorms. The pattern remains fairly active Thursday and Friday with a series of embedded upper level waves riding east through the region and combining with some instability to trigger or enhance afternoon/evening showers and storms. && .AVIATION /19Z SATURDAY THROUGH THURSDAY/... A line of thunderstorms will pass through the terminals from northwest to southeast between 18z and 23z. Thunderstorms will cause brief visibility restrictions of 3SM to 5SM and ceiling restrictions of 1500 feet to 3500 feet. A broken low VFR to borderline MVFR deck will set up overnight behind the front. Patchy river valley fog might affect KELM around sunrise. Clearing skies and VFR conditions are forecast for Sunday. Outlook... Early Sunday...Minor post-frontal ceiling restrictions KSYR- KRME; possibly KITH-KBGM briefly. Mid day Sunday through Monday night...Mainly VFR, but valley fog likely Sunday night at least KELM; possibly other sites. Tuesday through Wednesday...A chance of showers and thunderstorms with associated brief restrictions. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...DJP NEAR TERM...DJP SHORT TERM...DGM LONG TERM...BJT/DGM AVIATION...DJP
Hazardous Weather Outlook National Weather Service Binghamton NY 301 PM EDT Sat Aug 29 2020 NYZ009-015>018-022>025-036-037-044-045-055-056-062-PAZ038>040-043- 044-047-048-072-301915- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango- Tioga-Broome-Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming- Lackawanna-Luzerne-Pike-Southern Wayne- 301 PM EDT Sat Aug 29 2020 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...This afternoon and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NYZ046-057-301915- Otsego-Delaware- 301 PM EDT Sat Aug 29 2020 ...SEVERE THUNDERSTORM WATCH 469 IN EFFECT UNTIL 9 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central New York. .DAY ONE...This afternoon and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Severe Thunderstorm Watch. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. 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
339 PM EDT Sat Aug 29 2020
NYZ036-037-046-292015-
Otsego NY-Southern Oneida NY-Madison NY-
339 PM EDT Sat Aug 29 2020
...STRONG THUNDERSTORM WILL AFFECT...SOUTH CENTRAL ONEIDA...NORTH
CENTRAL OTSEGO AND EAST CENTRAL MADISON COUNTIES UNTIL 415 PM EDT...
At 338 PM EDT, Doppler radar was tracking a strong thunderstorm near
Bridgewater, or 11 miles east of Hamilton, moving east at 35 mph.
Small hail and strong wind gusts will be possible with this storm.
Locations impacted include...
Waterville, West Winfield, Bridgewater, Clayville, Unadilla Forks,
Stockwell, Youngs Crossing, North Brookfield, Hubbard Corners and
Millers Mills Crossing.
LAT...LON 4283 7539 4287 7543 4295 7544 4299 7521
4290 7520 4288 7520 4288 7521 4286 7521
4286 7514 4291 7509 4289 7505 4282 7503
TIME...MOT...LOC 1938Z 265DEG 29KT 4287 7532
HLCSpecial Weather Statement
National Weather Service Binghamton NY
426 PM EDT Sat Aug 29 2020
NYZ046-292100-
Otsego NY-
426 PM EDT Sat Aug 29 2020
...STRONG THUNDERSTORM WILL AFFECT...NORTHEASTERN OTSEGO COUNTY UNTIL
500 PM EDT...
At 426 PM EDT, Doppler radar was tracking a strong thunderstorm over
Springfield, or 10 miles north of Cooperstown, moving east at 30 mph.
Small hail and strong wind gusts will be possible with this storm.
Locations impacted include...
Springfield, Richfield Springs, Cherry Valley, Salt Springville,
Glimmerglass State Park and East Springfield.
LAT...LON 4280 7502 4287 7500 4283 7490 4289 7488
4290 7486 4283 7466 4282 7465 4276 7467
4269 7465
TIME...MOT...LOC 2026Z 282DEG 27KT 4285 7490
HLCSpecial Weather Statement National Weather Service Binghamton NY 435 PM EDT Sat Aug 29 2020 PAZ043-047-292100- Wyoming PA-Luzerne PA- 435 PM EDT Sat Aug 29 2020 ...STRONG THUNDERSTORM WILL AFFECT...NORTHWESTERN LUZERNE AND SOUTHERN WYOMING COUNTIES UNTIL 500 PM EDT... At 435 PM EDT, Doppler radar was tracking a strong thunderstorm over Kasson Brook, or 14 miles southwest of Tunkhannock, moving east at 30 mph. Small hail and strong wind gusts will be possible with this storm. Locations impacted include... Falls, Vernon, Dallas, Harveys Lake, Orange, Noxen, Forkston, Kasson Brook, Evans Falls and Beaumont. LAT...LON 4138 7628 4154 7622 4151 7584 4130 7592 TIME...MOT...LOC 2035Z 279DEG 26KT 4145 7619 HLC
The Albany radar (KENX), 66 km away, was scanning. The volume nearest the first event began at 20:36 UTC.
6 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds brought down trees.
Strong thunderstorm winds brought down trees.
Strong thunderstorm winds brought down trees across a road and damaged power poles.
Strong thunderstorm winds brought down trees on Winney Hill Road.
Strong thunderstorm winds brought down trees across Highway 10.
Strong thunderstorm winds brought down trees and wires.
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, August 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: 916746, 916747, 916748, 916752, 916754, 916756.