A shortwave moved through Central New York, triggering scattered thunderstorms. One storm became severe and produced 1 inch hail.
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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.
A shortwave moved through Central New York, triggering scattered thunderstorms. One storm became severe and produced 1 inch hail. That same storm produced accumulating, small hail with accumulations of around 2 inches reported.
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 2, 2:21 PM EST, 30 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 321 PM EDT Fri Jul 2 2021 .SYNOPSIS... Upper level disturbance will bring cool weather through tomorrow with heavy showers and a few thunderstorms. Ridging builds in on Sunday with warmer and mainly dry conditions expected into Monday. && .NEAR TERM /THROUGH SATURDAY NIGHT/... 300 PM update... Upper level low pressure system is producing scattered heavy showers and a few thunderstorms this afternoon. Showers and storms have been slow moving with weak flow aloft, this has allowed some areas to pick up 2 to 3 inches of rain already today with minor flooding in a few spots. Water vapor imagery shows the upper low currently in western PA and this feature will move eastward and will be centered over New England by Saturday night. There have been a few breaks in the clouds this afternoon. This has created enough instability with the cold air aloft to produce a few thunderstorms that have had some small hail, with freezing levels down to only 10K feet. However, the main threat for today remains the heavy rainfall in slow moving storms. Will have to continue to watch for minor isolated flooding through this evening, especially in areas that have already seen those higher rainfall totals today. With the loss of heating this evening, we should see shower and storm activity diminish with more isolated showers into the overnight hours. Overall, the flash flood threat is low, but with the slow movement of these cells, it can't be ruled out. Tomorrow, there should be less instability with more cloud cover likely. Showers will again be more common in the afternoon just like today. High temperatures will be around 70 Saturday with low temperatures falling into the mid and upper 50s tonight. && .SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/... 320 PM update... Mostly sunny skies are expected for Sunday. Chances for showers and thunderstorms remain low. While still under the influences of the upper level low, combined with daytime heating, there could be some thunderstorm activity in the afternoon and early evening hours. The best chances for thunderstorms will be in the Poconos and Catskills. Any rain shower and thunderstorm activity should conclude by sunset, which will be favorable for any holiday celebrations scheduled then. Sunday will be a pleasant day for most with shower chances limited and temperatures in the 70s. A cool night is in store as nighttime temps drop into the 50s. With weak high pressure over the area, rain chances will be limited during the day on Monday. Chances for rain showers and isolated thunderstorms are a little better Monday night with as a weak front moves into the region. The best chances for rain showers will be in parts of northern Susquehanna Region and areas northward. This is a change from our previous forecast where all of CNY had a decent chance at showers Monday night. There is some uncertainty as the GFS shows widespread showers while the ECMWF keeps most of the region fairly dry. Due to this uncertainty, mainly the National Blend of Models (NBM) was used for PoPs late night Monday which resulted in the forecast being closer to the ECMWF solution. Monday will be warmer and more humid as highs will be in the 80s and low 90s with dew points in the 60s as a ridge brings warmer air and moisture to the region. Forecasted temps were bumped up a couple of degrees above guidance due to that ridge bringing warmer air into the region. Lows on Monday will also be warm with 60s across most of the area, but 70s are possible over the northern Finger Lakes areas. && .LONG TERM /TUESDAY THROUGH FRIDAY/... 320 PM update... Not much has changed with the activity expected in the long term. This period is full of chances for rain showers and thunderstorms. The early part of the week will be warm with a cool down expected mid-week. Chances for showers and afternoon thunderstorms at better going into Tuesday as the next system passes through. Warmer temps during the day will again provide some support for convection in the afternoon and evening hours. Daytime highs will be in the 80s and low 90s with dew points in the 60s, leading to another warm, humid day. Overnight lows will be comfortable as 50s are expected. A trough begins to dig south across the Central US mid-week. With the trough over the Great Lakes, it brings another round of showers and thunderstorms to the area. A slight cooling trend is also expected around mid-week, as highs on Wednesday will be in the upper 70s to mid 80s. This trough moves east through the end of the week bringing additional rounds of showers and thunderstorms. Temperatures should remain seasonal through the end of the week. && .AVIATION /19Z FRIDAY THROUGH WEDNESDAY/... An upper level disturbance will continue to bring showers and thunderstorms and associated restrictions to the region through this evening. Brief IFR conditions will be possible through this afternoon in the heavier showers and storms. Overnight, low ceilings and vsbys are possible through Saturday morning. Ceilings and vsbys should begin to lift by mid morning. More showers and thunderstorms are expected tomorrow as this upper level system remains in the vicinity, but not enough confidence to put in restrictions at any one terminal at this time. Outlook... Saturday afternoon through Saturday night... Restrictions possible in scattered showers and storms. Sunday and Monday...Mainly VFR. Tuesday and Wednesday...Mainly VFR; but showers and thunderstorms with brief restrictions will be possible. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...MPK NEAR TERM...MPK SHORT TERM...BTL/BJT LONG TERM...BTL/BJT AVIATION...MPK
Hazardous Weather Outlook National Weather Service Binghamton NY 236 PM EDT Fri Jul 2 2021 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-031845- 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- 236 PM EDT Fri Jul 2 2021 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...This afternoon and tonight. Scattered showers and isolated thunderstorms this afternoon and evening will produce pockets of heavy rainfall and localized flooding could occur. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement National Weather Service Binghamton NY 222 PM EDT Fri Jul 2 2021 NYZ045-046-021845- Otsego-Chenango- 222 PM EDT Fri Jul 2 2021 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN OTSEGO AND EAST CENTRAL CHENANGO COUNTIES... At 221 PM EDT, a strong thunderstorm was located near Norwich, moving east at 10 mph. Winds in excess of 40 mph and dime size hail are possible with this storm. Locations impacted include... Norwich, Gilbertsville, Mt Upton, Lathams Corners, Holmesville, South New Berlin and Polkville. LAT...LON 4243 7555 4252 7555 4259 7534 4240 7528 TIME...MOT...LOC 1821Z 264DEG 10KT 4248 7547 AJG
Special Weather Statement National Weather Service Binghamton NY 245 PM EDT Fri Jul 2 2021 NYZ022-021915- Steuben- 245 PM EDT Fri Jul 2 2021 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL STEUBEN COUNTY... At 245 PM EDT, a strong thunderstorm was located near Canisteo, or 7 miles southeast of Hornell, moving east at 10 mph. Winds in excess of 40 mph and dime size hail are possible with this storm. Locations impacted include... Hornell, Canisteo, Howard, Avoca, Cameron, West Cameron, Kanona, Cameron Mills, North Cameron and Buena Vista. LAT...LON 4218 7766 4237 7765 4241 7737 4214 7731 TIME...MOT...LOC 1845Z 271DEG 9KT 4228 7754 AJG
Special Weather Statement National Weather Service Binghamton NY 323 PM EDT Fri Jul 2 2021 NYZ046-057-022000- Otsego-Delaware- 323 PM EDT Fri Jul 2 2021 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN OTSEGO AND NORTH CENTRAL DELAWARE COUNTIES... At 323 PM EDT, a strong thunderstorm was located over West End, or over Oneonta, moving east at 15 mph. Winds in excess of 40 mph and half inch hail are possible with this storm. Locations impacted include... Oneonta, Davenport, Maryland, Kortright, Milford, Laurens, West End, Elk Creek, Colliersville and East Meredith. LAT...LON 4241 7517 4257 7518 4263 7480 4236 7478 TIME...MOT...LOC 1923Z 265DEG 13KT 4249 7507 AJG
Special Weather Statement
National Weather Service Binghamton NY
343 PM EDT Fri Jul 2 2021
NYZ022-022015-
Steuben-
343 PM EDT Fri Jul 2 2021
...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN STEUBEN COUNTY...
At 343 PM EDT, a strong thunderstorm was located over Greenwood, or
14 miles east of Wellsville, moving south at 5 mph.
Winds in excess of 40 mph and half inch hail are possible with this
storm.
Locations impacted include...
Troupsburg, Greenwood, Willeyville, Young Hickory and West Greenwood.
LAT...LON 4213 7775 4216 7774 4218 7759 4200 7753
4200 7775
TIME...MOT...LOC 1943Z 355DEG 5KT 4210 7767
AJGThe Albany radar (KENX), 72 km away, was scanning. The volume nearest the first event began at 19:50 UTC.
2 hail. Local standard time, as filed.
A strong thunderstorm produced nickel sized hail and about 2 inches of small hail accumulated on the ground.
A strong thunderstorm produced 1 inch hail.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2021Every state in 2021This day in weather historyWarnings in New York, July 2021
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: 968121, 968122.