A frontal system swept through Central New York during the morning hours. A line of storms formed along the front and produced strong wind gusts.
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 frontal system swept through Central New York during the morning hours. A line of storms formed along the front and produced strong wind gusts. Multiple reports of trees down were reported in Broome and Sullivan Counties.
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 Nov 12, 6:08 AM EST, 1 hour 5 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 608 AM EST Fri Nov 12 2021 .SYNOPSIS... A strong cold front moving through tonight brings widespread rain late tonight into Friday morning. Cooler weather is expected as we head into the weekend with scattered rain showers and snow showers at higher elevations. && .NEAR TERM /THROUGH TONIGHT/... 600am update Rain has now spread throughout the CWA. Several very narrow and low topped convection bands stretch north to south from Cayuga County to Bradford county. A few strong gusts have been measured along this line...with 36kts at the Ithaca airport. The Twin Tiers currently have measured between 0.75 and 1.00 in of rain...out preforming forecasted QPF in some spots over Bradford and Chemung counties. Rainfall amounts are below flash flood guidance so no major flooding issues are occurring. The front is through Tioga/Tompkins/Cayuga and will be east of the I-81 corridor in the next hour. The rest of the forecast remains on track. Previous discussion... A very mature stacked low pressure system centered over the upper midwest will push a strong front from west to east through the area early this morning...exiting the CWA by early Friday afternoon. Currently...light rain showers generated by a strong low level jet stream are moving to the NNE across NE PA and the Southern Tier. The main area of the heaviest precipitation is currently over central PA...moving to the NNE ahead of the frontal boundary. The boundary is currently stretching north to south over western NY into PA with a very narrow band of low topped convection occurring along the leading edge of the front. Wind observations along this front have shown gusts between 25 and 30kts...but it has had a history of producing 40kt gusts so we will closely monitor the convective line as it moves into the CWA. The main area of steady rain is forecast to move into the western Twin Tiers by 8z...spreading NE to the Finger Lakes and west of I-81 by 09z...the I-81 corridor by 10z and the eastern counties and Catskills by 12z. The convection along the frontal boundary will enter Steuben county by 10z and push eastward...hitting the I-81 corridor by 12z and the eastern counties by 14z. Dry air behind the front is going to keep this system pretty progressive...pushing it out of the CWA by early afternoon. With rainfall totals mainly ranging from around 0.50 to 1.00" any flooding issues seem unlikely at this time. There will be some locally higher rain amounts across the south facing slopes of the Poconos and western Catskills; perhaps up to 1.75 inches...so may see some solid runoff here with localized ponding of water in low lying areas. Gusty SE winds between 20-30kts ahead of the front are spread across the CWA and should continue until the front passes. The wind threat from convection along the front has really diminished over the past few hours with several METARs over western NY and PA have gusts maxing out at 30kts. Looking at modeled soundings...the low level atmosphere is too stable to see the stronger winds above transfer down to the surface. Currently...it looks like higher elevations will have the best chance to see gusty winds in convection along this front. Once the front passes...a few hours of light rainfall will occur until a strong surge of dry air clears everything out. Mostly sunny skies will cover the CWA by the afternoon. Strong SE winds have advected very warm air into the area with current temperatures in the mid to upper 50s across the CWA. Behind the front...weak cold air advection will take place as the air mass moving in is more dry than cold. Abundant sunshine across the area will allow for afternoon highs to stay in the upper 50s to low 60s. Lows Saturday morning will be much cooler than today. A much drier air mass and radiational cooling will allow for temperatures to drop into the mid to upper 30s across the area. && .SHORT TERM /SATURDAY THROUGH MONDAY NIGHT/... 245 AM Update... This will be chilly period with lake effect effect precipitation for some, yet also multiple passing waves for occasional chances of rain and/or snow for the general area. A negatively-tilting upper trough axis is set to punch through the area Saturday afternoon. This will cause temperatures to drop into the mid 30s-lower 40s towards sunset, with a batch of rain showers mixing with snow at higher elevations before ending. Behind that, chilly westerly flow along with 850mb temperatures about 5-6 Celsius below freezing, appears likely to generate lake effect streamers. Lake Erie snow showers will probably carry into parts of Southern Finger Lakes/Southern Tier NY and perhaps far northern Tier of PA Saturday night. Lake Ontario meanwhile will yield a light accumulation of snow north of the New York Thruway, especially northern Oneida County which could get around an inch. It does not take long for flow to back west-southwesterly into Sunday. Mixed rain/snow showers are still possible off the lakes but will be minor with most of the area staying dry during the daytime. It will still be mostly cloudy and chilly though, with highs mainly in the upper 30s-mid 40s. Low pressure in the western Great Lakes Sunday, is projected to swing through our region Sunday night into Monday. The models disagree a bit on the exact track of the low, and its pace which will depend on how much vertical stacking occurs. However, thermal profiles are suggesting that associated precipitation may be in the form of snow for mid to upper elevations Sunday night into early Monday; mixed rain/snow more likely in valleys and lake plain. There is also still uncertainty on precipitation amounts. While generally light, this will make the difference between just barely a skiff of snow at higher elevations to perhaps 1-2 inches. Lower elevations meanwhile are less likely to see anything collect on the ground, but snowflakes are quite possible. Behind the low, Monday night will feature chilly air and cyclonic west-northwesterly flow, with dependence on the lakes for continued chances of snow showers; mixed with rain at lower elevations. && .LONG TERM /TUESDAY THROUGH THURSDAY/... 245 AM Update... One more rather chilly day Tuesday, but we otherwise get into ridging during midweek with a small window of dry weather; before unsettled weather potentially returns late in the week. Cool upper trough and well as broad cyclonic flow around a deep Canadian Maritime low, will still have a hold on our area Tuesday. Forecast highs are upper 30s-mid 40s, and scattered lake effect snow/rain showers will probably linger southeast of Lake Ontario at least early on. Models are in good agreement that ridging slides into the area Tuesday night into Wednesday with dry weather and moderating temperatures. In fact, Wednesday-Thursday we get right into southwesterly flow with above average highs in the upper 40s- upper 50s. However, a nearly flow-parallel frontal zone will also try to sneak into the area by Thursday with a chance for rain showers. This far out, it remains to be seen whether the front stalls out for a longer period such as depicted by the 00Z ECMWF, or if instead it just drives through as suggested by the typically more progressive GFS and NH-Canadian models. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/... An intense frontal system will be crossing the region during the early morning hours on Friday. Out ahead of the front, a strong low level jet is already leading to LLWS conditions and this will persist at all terminals until the cold front pushes through tomorrow morning. Heavy rain will start to push in from the west-southwest later tonight with ELM likely being the first terminal to start seeing restrictions. All terminals will eventually see heavy rain with gusty winds during the early morning hours as the cold front crosses. The exact timing of the heavy rain is still uncertain, but with this update, tried to narrow the window when the worse restrictions are expected. Behind the frontal passage tomorrow morning, a wind shift occurs with winds becoming westerly but staying fairly gusty. but this will also bring an end to LLWS conditions. VFR conditions are expected shortly after FROPA, but there is still some uncertainty in how quick the low level moisture will scour out behind the front. Outlook... Friday evening through Saturday Morning...Mostly VFR expected Saturday through Sunday...Restrictions likely as another disturbance brings rain and snow showers to the region Sunday night through Tuesday...A weak clipper system and lingering lake effect snow showers may bring restrictions...but confidence is low at this time. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...JTC NEAR TERM...JTC/MJM SHORT TERM...MDP LONG TERM...MDP AVIATION...JTC
Hazardous Weather Outlook National Weather Service Binghamton NY 405 AM EST Fri Nov 12 2021 NYZ057-062-PAZ038>040-043-044-047-048-072-130915- Delaware-Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming- Lackawanna-Luzerne-Pike-Southern Wayne- 405 AM EST Fri Nov 12 2021 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Today and tonight. Heavy rain is possible early this morning through mid-morning and may cause small streams to rise rapidly. Ponding on roadways is also possible where leaves clog drainage. .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. NYZ009-015>018-022>025-036-037-044>046-055-056-130915- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Schuyler-Chemung-Tompkins-Madison-Southern Oneida-Cortland-Chenango- Otsego-Tioga-Broome- 405 AM EST Fri Nov 12 2021 This Hazardous Weather Outlook is for central New York. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. 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
604 AM EST Fri Nov 12 2021
NYZ017-025-044-055-056-PAZ038-039-043-121145-
Cortland NY-Southern Cayuga NY-Tioga NY-Broome NY-Tompkins NY-
Wyoming PA-Susquehanna PA-Bradford PA-
604 AM EST Fri Nov 12 2021
...A line of heavy showers with strong gusts will impact portions of
western Broome, southeastern Cayuga, Cortland, Tioga, Tompkins,
Susquehanna, eastern Bradford and Wyoming Counties through 645 AM
EST...
At 602 AM EST, Doppler radar was tracking a line of heavy showers
with strong winds along a line extending from near Genoa to near
Kasson Brook. Movement was northeast at 35 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Spotty power outages are possible.
Locations impacted include...
Binghamton, Ithaca, Vestal, Cortland, Johnson City, Endicott, Barton,
Kirkwood, Conklin and Maine.
This includes the following highway exits...
New York Interstate 81 between 1 and 13.
Interstate 86/Route 17 between 62 and 75.
Interstate 88 between 1 and 3.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms and may lead to
localized flooding, especially where leaves clog drains. Do not
drive your vehicle through flooded roadways.
&&
LAT...LON 4154 7622 4156 7643 4265 7660 4278 7606
4279 7592 4227 7585 4225 7581 4164 7570
4157 7577 4140 7627
TIME...MOT...LOC 1102Z 233DEG 28KT 4270 7649 4147 7623
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
MDPSpecial Weather Statement
National Weather Service Binghamton NY
622 AM EST Fri Nov 12 2021
NYZ017-018-036-044-121145-
Onondaga NY-Cortland NY-Southern Cayuga NY-Madison NY-
622 AM EST Fri Nov 12 2021
...A line of heavy showers with strong gusts will impact portions of
northwestern Madison, southeastern Cayuga, northwestern Cortland and
Onondaga Counties through 645 AM EST...
At 621 AM EST, Doppler radar was a line of heavy showers with strong
winds along a line extending from near Fulton to near Scott.
Movement was northeast at 35 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Spotty power outages are possible.
Locations impacted include...
Onondaga, Syracuse, Clay, Cicero, De Witt, Lysander, Van Buren,
Baldwinsville, Pompey and North Syracuse.
This includes the following highway exits...
Interstate 90 between 34A and 39.
New York Interstate 81 between 13 and 31.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms and may lead to
localized flooding, especially where leaves clog drains. Do not
drive your vehicle through flooded roadways.
&&
LAT...LON 4322 7609 4320 7608 4320 7605 4318 7601
4317 7593 4280 7589 4266 7643 4323 7647
4323 7630 4320 7627 4322 7626 4324 7627
4324 7626 4320 7622 4322 7620 4324 7621
4327 7621
TIME...MOT...LOC 1121Z 229DEG 31KT 4330 7631 4276 7623
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
MDPSpecial Weather Statement
National Weather Service Binghamton NY
645 AM EST Fri Nov 12 2021
NYZ009-018-036-037-044-045-055-056-121245-
Chenango NY-Onondaga NY-Southern Oneida NY-Cortland NY-Madison NY-
Tioga NY-Broome NY-Northern Oneida NY-
645 AM EST Fri Nov 12 2021
...Strong thunderstorms will impact portions of western Oneida,
Broome, Madison, Cortland, eastern Tioga, eastern Onondaga and
Chenango Counties through 745 AM EST...
At 644 AM EST, Doppler radar was tracking heavy gusty showers along
a line extending from Brewerton to near Vestal Center. Movement was
northeast at 40 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Onondaga, Syracuse, Clay, Binghamton, Rome, Cicero, Vestal, De Witt,
Cortland and Sullivan.
This includes the following highway exits...
Interstate 90 between 32 and 38.
New York Interstate 81 between 1 and 30.
Interstate 86/Route 17 between 66 and 83.
Interstate 88 between 1 and 8.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms and may lead to
localized flooding, especially where leaves clog drains. Do not
drive your vehicle through flooded roadways.
&&
LAT...LON 4342 7555 4347 7542 4255 7535 4251 7540
4241 7537 4239 7540 4232 7542 4205 7543
4201 7540 4201 7619 4323 7626 4322 7625
4320 7622 4322 7620 4326 7621 4320 7608
4315 7589 4328 7587 4333 7588 4348 7581
TIME...MOT...LOC 1144Z 223DEG 35KT 4323 7611 4207 7597
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
MDPSpecial Weather Statement
National Weather Service Binghamton NY
649 AM EST Fri Nov 12 2021
PAZ039-040-043-044-047-072-121245-
Southern Wayne PA-Wyoming PA-Susquehanna PA-Northern Wayne PA-
Luzerne PA-Lackawanna PA-
649 AM EST Fri Nov 12 2021
...Strong thunderstorms will impact portions of Susquehanna,
Lackawanna, Wayne, northeastern Luzerne and eastern Wyoming Counties
through 745 AM EST...
At 648 AM EST, Doppler radar was tracking a line of gusty heavy
showers along a line extending from near Hallstead to near Freeland.
Movement was northeast at 35 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Spotty power outages are possible.
Locations impacted include...
Scranton, Wilkes-Barre, Falls, Dunmore, Kingston, Nanticoke, Plains,
Carbondale, Old Forge and Pittston.
This includes the following highway exits...
Pennsylvania Interstate 81 between 164 and 230.
Interstate 84 between 1 and 17.
Interstate 380 between 13 and 24.
Interstate 476 between 105 and 131.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Heavy rainfall is also occurring with these storms and may lead to
localized flooding, especially where leaves clog drains. Do not
drive your vehicle through flooded roadways.
&&
LAT...LON 4199 7602 4200 7536 4193 7528 4187 7526
4186 7522 4143 7521 4142 7525 4137 7526
4137 7533 4138 7534 4137 7535 4134 7535
4133 7531 4125 7534 4114 7607
TIME...MOT...LOC 1148Z 236DEG 29KT 4194 7578 4105 7592
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
MDPThe Binghamton radar (KBGM), 34 km away, was scanning. The volume nearest the first event began at 12:13 UTC.
6 thunderstorm wind. Local standard time, as filed.
Strong thunderstorm winds knocked down a large tree onto Rt 79.
Strong thunderstorm winds knocked down a tree onto a roadway.
Strong thunderstorm winds knocked down trees and wires.
Strong thunderstorm winds knocked down a tree and wires at the intersection of Beaver Kill and Little Ireland Roads.
Strong thunderstorm winds knocked down a utility pole and wires at the intersection of Harris and Old Libery Roads.
Strong thunderstorm winds knocked a tree down onto wires on Sugar Loaf Rd.
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, November 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: 988215, 988216, 988214, 988217, 988218, 988219.