A line of severe thunderstorms developed in Northeast Pennsylvania during the late afternoon and early evening of the 3rd ahead of a passing cold front. These storms produced widespread wind 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 line of severe thunderstorms developed in Northeast Pennsylvania during the late afternoon and early evening of the 3rd ahead of a passing cold front. These storms produced widespread wind 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 Jun 3, 2:11 PM EST, 2 hours 58 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 311 PM EDT Wed Jun 3 2020 .SYNOPSIS... A front will move across the region this afternoon and tonight bringing passing showers and a chance for thunderstorms, especially from the Twin Tiers southward, where a few storms could be severe. Weak high pressure builds back in on Thursday with mainly dry weather, but other passing disturbances Friday and Saturday will result in chances of showers and thunder. && .NEAR TERM /THROUGH THURSDAY/... 240 PM Update... Slight destabilization of the boundary layer was occurring this afternoon in response to pockets of solar heating mainly along and west of the Central Southern Tier. Mid level lapse rates are not substantial, and a solid trigger is lacking at the surface or in satellite views aloft. The latest HRRR still insists on redevelopment of showers and storms developing and moving from the lower Finger Lakes/Southern Tier into NEPA between about 20Z and 00Z. We suspect this will occur to some degree and have left scattered/chance shower and thunderstorm activity into the evening. The risk of severe storms looks to be waning fast as favorable parameters consolidate over central and eastern PA. Beyond sunset...weak high pressure with dry air will build across the region later tonight through most of Thursday. Models suggest a minor wave curling through the OH Valley and riding along a stationary front over PA from Thursday afternoon through the evening. Guidance remains consistent with much of the precipitation chances remaining to our south, but there's still enough evidence for scattered shower, or thunderstorm activity over NEPA tomorrow afternoon and night. SPC positions marginal risk of severe along our southernmost border counties...but no major concern from us at this time. Seasonable temperatures expected for the next 36 hours. && .SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY NIGHT/... A cold frontal boundary will move through the area Friday night with another boundary to our south. These boundaries coupled with enough moisture and instability should be enough to spark a few showers and thunderstorms throughout the day. Shear looks very week for any organized activity. Highs should still get well into the 80's on Friday. Friday night looks warm and a bit muggy still being ahead of the cold front with lows only falling into the mid 60's on average. Still with the warm moist air in place the threat for a few showers and thunderstorms continues. By Saturday, the cold frontal boundary should east of the area. As typical for northwest flow events one concern is that blended model guidance looks to quick clearing out the skies with the potential for a little additional moisture on the backside of the departing low pressure system. A cooler airmass slowly builds into the region lowering highs down to around 80. High pressure builds into the region Saturday night with a favorable setup for radiational cooling light winds and clear skies. As a result, lows fall into the low and mid 50's. With a slightly tighter pressure gradient winds pick up to around 10 mph Saturday from the northwest but winds Friday look even weaker. && .LONG TERM /SUNDAY THROUGH WEDNESDAY/... The high pressure system builds into the region early next week and deflects Cristobal a named system in the southern Gulf toward the western Gulf coast states while also keeping the next cold front well west of the region. While Sunday starts off cooler with highs around 70 the flow eventually becomes southerly with highs in the 80's by mid-week. Low temperatures will rise a few degrees each night from the cold 40's Saturday night well into the 50's by Tuesday night. Right now modeling is keying on interaction between a frontal boundary and what's left of Cristobal around Wednesday well northwest of our region. Still a considerable amount of ensemble spread here but enough members indicate a few showers and thunderstorms could move into the area by Wednesday next week ahead of that front. && .AVIATION /19Z WEDNESDAY THROUGH MONDAY/... Isolated to scattered convection still possible through 00Z, but very low confidence as to impact on terminal operations thus left it out of TAFs and will monitor for amendments. Otherwise, generally VFR with some lingering MVFR still to burn off by 21Z. After 00Z VFR is likely with the exception of a fog chance at KELM and MVFR restricted ceilings toward morning, mainly at KRME and KBGM. Winds NW 10G20 kts until 00Z, then variable under 10 knots. Outlook... Thursday through Thursday night...Mainly VFR. Friday through Friday night...Chance of showers and thunderstorms with associated restrictions as front passes. Saturday...Small chance of showers/restrictions, otherwise VFR. Saturday night through Sunday...Flight restrictions unlikely. Monday...Flight restrictions unlikely. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...JAB NEAR TERM...JAB SHORT TERM...MWG LONG TERM...MWG AVIATION...JAB
Hazardous Weather Outlook National Weather Service Binghamton NY 249 PM EDT Wed Jun 3 2020 NYZ062-PAZ038>040-043-044-047-048-072-041900- Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming-Lackawanna- Luzerne-Pike-Southern Wayne- 249 PM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...This afternoon and tonight. Some thunderstorms are still possible into this evening and one, or two storms could become severe with high winds and hail. .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>046-055>057-041900- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango- Otsego-Tioga-Broome-Delaware- 249 PM EDT Wed Jun 3 2020 This Hazardous Weather Outlook is for central New York. .DAY ONE...This afternoon and tonight. The probability for widespread hazardous weather is low. .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.
Special Weather Statement
National Weather Service Binghamton NY
430 PM EDT Wed Jun 3 2020
NYZ022>025-032115-
Steuben NY-Chemung NY-Schuyler NY-Tompkins NY-
430 PM EDT Wed Jun 3 2020
...STRONG THUNDERSTORM WILL AFFECT...SCHUYLER...NORTHERN CHEMUNG...
NORTHEASTERN STEUBEN AND SOUTHWESTERN TOMPKINS COUNTIES UNTIL 515 PM
EDT...
At 430 PM EDT, Doppler radar was tracking a strong thunderstorm near
Tyrone, or 11 miles west of Watkins Glen, moving east at 35 mph.
Strong wind gusts will be possible with this storm.
Locations impacted include...
Horseheads, Newfield, Danby, Erin, Watkins Glen, Catharine, Montour
Falls, Tyrone, Wayne and Bradford.
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.
&&
LAT...LON 4248 7715 4235 7641 4226 7645 4226 7647
4228 7648 4228 7654 4216 7653 4215 7656
4211 7656 4231 7722
TIME...MOT...LOC 2030Z 287DEG 31KT 4238 7709
DJPSpecial Weather Statement
National Weather Service Binghamton NY
514 PM EDT Wed Jun 3 2020
PAZ038-032215-
Bradford PA-
514 PM EDT Wed Jun 3 2020
...STRONG THUNDERSTORM WILL AFFECT...SOUTHERN BRADFORD COUNTY UNTIL
615 PM EDT...
At 514 PM EDT, Doppler radar was tracking a strong thunderstorm over
Ogdensburg, or 8 miles west of Canton, moving east at 40 mph.
Small hail and strong wind gusts will be possible with this storm.
Locations impacted include...
Canton, Wilmot, Hollenback, Wyalusing, Laceyville, New Albany,
Overton, Sugar Run, Le Roy and Grover.
LAT...LON 4166 7612 4165 7612 4164 7620 4154 7622
4154 7625 4159 7685 4160 7688 4169 7689
TIME...MOT...LOC 2114Z 276DEG 37KT 4161 7701
DJPSpecial Weather Statement
National Weather Service Binghamton NY
529 PM EDT Wed Jun 3 2020
NYZ024-055-056-PAZ038-039-032215-
Chemung NY-Tioga NY-Broome NY-Susquehanna PA-Bradford PA-
529 PM EDT Wed Jun 3 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHWESTERN
BROOME...SOUTHEASTERN CHEMUNG...SOUTHERN TIOGA...SUSQUEHANNA AND
NORTHEASTERN BRADFORD COUNTIES UNTIL 615 PM EDT...
At 529 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Spencer to near Waverly. Movement was
southeast at 45 mph.
Strong wind gusts will be possible with these storms.
Locations impacted include...
Chemung, Vestal, Endicott, Barton, Sayre, Conklin, Waverly, Rush,
Owego and Jackson.
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.
&&
LAT...LON 4201 7669 4223 7644 4194 7548 4164 7582
4164 7594
TIME...MOT...LOC 2129Z 297DEG 40KT 4216 7644 4204 7657
DJPThe Binghamton radar (KBGM), 47 km away, was scanning. The volume nearest the first event began at 22:11 UTC.
18 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds brought down power lines and blocked a road.
Strong thunderstorm winds brought down trees and wires.
Strong thunderstorm winds brought down trees and wires on Route 29.
Strong thunderstorm winds brought down trees and blocked roadways.
Strong thunderstorm winds blew off a 40 by 140 foot warehouse roof and dropped it in a road. The building also collapsed.
Strong thunderstorm winds brought down multiple large trees. Wires were also across a road.
Strong thunderstorm winds brought down multiple trees and wires.
Strong thunderstorm winds brought down high tension lines.
Strong thunderstorm winds brought down numerous large trees.
Strong thunderstorm winds brought down numerous large trees.
Strong thunderstorm winds brought down numerous large trees.
Strong thunderstorm winds brought down numerous large trees.
Strong thunderstorm winds brought down trees on homes.
Strong thunderstorm winds brought down numerous large trees.
Strong thunderstorm winds brought down trees across Route 407.
Strong thunderstorm winds brought down trees, blocking road on Hamlin Highway.
Strong thunderstorm winds destroyed a barn and downed tree limbs.
Strong thunderstorm winds brought down trees, blocking a road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2020Every state in 2020This day in weather historyWarnings in Pennsylvania, June 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: 901787, 901776, 901778, 901789, 901777, 901780, 901781, 901788, 901779, 901782, 901783, 901785, 901784, 901786, 901790, 901791, 901792, 901793.