A highly anomalous low pressure system tracked north and east of the region, producing a tight pressure gradient and strong winds. A cold front moved through around midday, bringing showers and thunderstorms capable of damaging 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 highly anomalous low pressure system tracked north and east of the region, producing a tight pressure gradient and strong winds. A cold front moved through around midday, bringing showers and thunderstorms capable of damaging wind gusts. The highly sheared and modestly yet adequately unstable environment also produced EF0 and EF1 tornadoes across Central NY, although damaging winds remained the primary hazard.
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 18, 5:51 AM EST, 3 hours 18 minutes earlier. Its key messages:
Area Forecast Discussion
National Weather Service Binghamton NY
651 AM EDT Thu Jun 18 2026
.WHAT HAS CHANGED...
Wind advisory was expanded to include Steuben County.
&&
.KEY MESSAGES...
1) A anomalous storm system is breaking records for low pressure
in the month of June as it tracks into southern Ontario, Canada
this morning. This system will push a cold front through the
region today with showers, thunderstorms and a lot of wind.
Greatest chance for widespread showers and storms will be
during the morning through early afternoon.
3) High pressure pushes in on Friday with cooler and drier
conditions through the weekend.
&&
.DISCUSSION...
KEY MESSAGE 1...
A highly anomalous low pressure system will cross the Great
Lakes and enter southern Ontario, Canada this morning. Current
model progs have the central pressure possibly reaching 988mb or
lower by late morning or early this afternoon, which is about 5
standard deviations below normal for this time of year. Latest
NAEFS and ENS show return intervals that are outside the climate
database with a number of parameters, including sea level pressure
and wind speed. Early this morning, showers and thunderstorms
associated with the warm front from this system will move into
the region. Additional showers associated with the cold front
will move through later in the morning and continue into the
early afternoon. Some of the stronger showers and storms this
morning will have the potential to produce damaging winds, as a
strong 60+ knot low level jet punches into the area around
sunrise. Even without the help of showers and storms, surface
winds will pick up later this morning as the cold front
approaches and the pressure gradient increases. There remains
some uncertainty on how much of the winds aloft will be able to
mix down, but confidence was high enough to include one more
county (Steuben) to the wind advisory, as winds shouldn't have a
problem gusting to 45+ mph across the higher terrain there.
SPC continues to keep most of the region in a Marginal risk for
severe thunderstorms, with the far eastern portion under a
slight risk, but that may change with an update later this
morning. This is a low CAPE and high shear environment that is
synoptically driven, so as mentioned already above, any stronger
convective showers or thunderstorms that can develop will have a
chance at producing winds in excess of 55 mph.
As drier air filters into the region later this afternoon,
showers should gradually come to an end, but expect gusty winds
to continue into this evening. High pressure will build in
tonight into Friday.
KEY MESSAGE 2...
No major changes in the forecast for the end of the week and
this weekend. Surface high pressure will build in behind the
cold front for Friday. This will bring drier and cooler
conditions through the weekend with low humidity. However, there
will remain some upper troughing over the region, so can't rule
out some diurnal shower and thunderstorm activity around the
peak heating hours of the afternoon. The next chance for
widespread rain will come towards the beginning of next week.
However, there remains to be a lot of run to run model
inconsistency with this systems track and timing at this time.
It is possible this system could miss most of our region
completely depending on how the pattern unfolds in the coming
days.
&&
.AVIATION /12Z THURSDAY THROUGH MONDAY/...
LLWS has been kept at all terminals this morning as a low level
jet moves through. Heating today will mix those winds down so by
roughly 14Z to 15Z, the gusts will be mixing down.
Storms are already firing along the approaching cold front later
today so a thunder tempo was added to most sites. SYR, ITH and
RME have the best chance at seeing storms given that the
northern section of the line is unbroken currently. An IFR
tempo has been added for those sites. The farther south along
the front, the line is more broken so ELM and BGM were not taken
down to IFR as there is a chance the cells will miss the
terminal. AVP has the lowest chance of being impacted by a
thunderstorm so no TS was added but it may need to be amended
if storms develop farther south along the front.
Once the front is through, it will be very windy but likely VFR
at all terminals with a dry slot working its way in. Some MVFR
cigs are possible after sunset this evening at SYR, ITH, and RME
if some low stratus can form off of the Great Lakes but any
clouds will scatter out shortly after 6Z tonight.
Outlook:
Friday through Sunday...Mainly VFR, though isolated to
scattered showers possible each afternoon with associated
intermittent restrictions. Westerly wind gusts could exceed 20
knots Friday- Saturday afternoons.
Late Sunday night through Monday...Wave of low pressure with
rain, restrictions, and possible embedded thunder.
&&
.BGM WATCHES/WARNINGS/ADVISORIES...
PA...None.
NY...Wind Advisory until 6 PM EDT this evening for NYZ009-015>018-
022-036-037.
&&
DISCUSSION...ES/MPK
AVIATION...AJGHazardous Weather Outlook National Weather Service Binghamton NY 116 AM EDT Thu Jun 18 2026 NYZ023>025-044>046-055>057-062-PAZ038>040-043-044-047-048-072-190530- Schuyler-Chemung-Tompkins-Cortland-Chenango-Otsego-Tioga-Broome- Delaware-Sullivan-Bradford-Susquehanna-Northern Wayne-Wyoming- Lackawanna-Luzerne-Pike-Southern Wayne- 116 AM EDT Thu Jun 18 2026 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Today and tonight. A strong cold front will push through the area today with gusty winds and scattered showers and thunderstorms. Isolated severe storms with damaging gusts will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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. NYZ009-015>018-022-036-037-190530- Northern Oneida-Yates-Seneca-Southern Cayuga-Onondaga-Steuben- Madison-Southern Oneida- 116 AM EDT Thu Jun 18 2026 ...WIND ADVISORY IN EFFECT FROM 4 AM TO 6 PM EDT THURSDAY... ...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 6 PM EDT THURSDAY... This Hazardous Weather Outlook is for central New York. .DAY ONE...Today and tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Wind Advisory. Also, a strong cold front will push through the area today with gusty winds and scattered showers and thunderstorms. Isolated severe storms with damaging gusts will be possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. 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.
The Buffalo radar (KBUF), 120 km away, was scanning. The volume nearest the first event began at 14:06 UTC.
43 thunderstorm wind, 3 tornado. Local standard time, as filed.
Strong thunderstorm winds brought a tree down on road with powerlines near Mill Road Hopkins Road intersection.
Strong thunderstorm winds brought trees and wires down in Waterloo at Larsen Road, Chadwick Drive, and Stark Street as per county dispatch feed.
Strong thunderstorm winds caused a large tree to split and fall into the yard, with part of the tree landing on the house.
Strong thunderstorm winds knocked down power lines, causing arcing on Terrace Lane, according to the county dispatch feed.
Strong thunderstorm winds caused a tree to fall onto power lines at a residence along Tucker Road, resulting in a fire. A nearby downed tree was also blocking Bonny Hill Road.
Strong thunderstorm winds caused trees to fall in the Dundee area. There was also a vehicle fire according to the county dispatch feed.
Strong thunderstorm winds knocked a tree onto a leaking propane tank, with possible damage to a building on Reading Road, according to the county dispatch feed.
Strong thunderstorm winds knocked down trees, blocking roadways.
Strong thunderstorm winds knocked a couple trees down on roadway in Tyrone.
Strong thunderstorm winds knocked down power lines on Henry Street, according to the county dispatch feed.
Strong thunderstorm winds knocked trees and wires down on Black Creek Road.
Strong thunderstorm winds knocked down a tree and power lines.
Strong thunderstorm winds knocked down three large trees across SUNY Cortland, damaging three cars. One of the trees also knocked over a light post and damaged a fence.
Strong thunderstorm winds knocked a tree down on a house.
Strong thunderstorm winds knocked multiple trees down in Cortland, especially along Greenbush Street and Route 281.
Strong thunderstorm winds knocked down and sheared numerous trees, with one structure sustaining roof damage.
Strong thunderstorm winds knocked a tree down on Church Street.
Strong thunderstorm winds snapped a tree, causing it to fall onto a vehicle. The impact shattered the vehicle’s windshield and sunroof .
Strong thunderstorm winds knocked trees and wires down near Fall Creek and College Ave, numerous other wires down throughout Ithaca area as per county dispatch feed.
An EF1 Tornado hit Rock Stream, NY, crossed Seneca Lake and hit a |lakeshore residence south of Hector, NY during the late morning |hours of June 18, 2026. Though there were pockets of minor tree |damage from the storm itself, tornadic damage started around Reading |Road at 1045 AM. This tornado strengthened to as much as 90 mph from |Old Lake Road to State Route 14, as rotation tightened with the |storm quickly moving at 50 mph from higher elevations into the |Seneca Lake basin. Numerous trees were uprooted in a convergent |chaotic fashion, and around 40 vineyard posts were snapped. Twigs |and branches were impaled into the ground as missiles in portions of |the vineyard, and shingles were found more than a quarter mile from |their source. A garage outbuilding collapsed, with some metal roof |peelback and siding damage also noted on the residence with small |branches squeezing into gaps. After crossing State Route 14 with a |continued corridor of uprooted trees, the tornado crossed Seneca |Lake around 1050 AM. Significant damage was observed near the lake |at the end of Wickham Rd. A large tree branch was impaled into a |house and several trees and numerous large branches were downed.
Strong thunderstorm winds knocked down trees and power lines, with arcing reported along Homewood Avenue, according to the county dispatch feed.
An EF1 Tornado hit Rock Stream, NY, crossed Seneca Lake and hit a |lakeshore residence south of Hector, NY during the late morning |hours of June 18, 2026. Though there were pockets of minor tree |damage from the storm itself, tornadic damage started around Reading |Road at 1045 AM. This tornado strengthened to as much as 90 mph from |Old Lake Road to State Route 14, as rotation tightened with the |storm quickly moving at 50 mph from higher elevations into the |Seneca Lake basin. Numerous trees were uprooted in a convergent |chaotic fashion, and around 40 vineyard posts were snapped. Twigs |and branches were impaled into the ground as missiles in portions of |the vineyard, and shingles were found more than a quarter mile from |their source. A garage outbuilding collapsed, with some metal roof |peelback and siding damage also noted on the residence with small |branches squeezing into gaps. After crossing State Route 14 with a |continued corridor of uprooted trees, the tornado crossed Seneca |Lake around 1050 AM. Significant damage was observed near the lake |at the end of Wickham Rd. A large tree branch was impaled into a |house and several trees and numerous large branches were downed.
Strong thunderstorm winds knocked wires down on roadway.
Strong thunderstorm winds knocked trees and wires down on road.
Strong thunderstorm winds knocked a tree down on Williams Rd.
Strong thunderstorm winds knocked a tree down on on Dunham Road and Highway 80.
Strong thunderstorm winds knocked down a large tree on Robert Williams Rd.
Strong thunderstorm winds knocked down trees and wires on Furman Mills Road.
Strong thunderstorm winds knocked tree down on road.
An EF-0 tornado briefly touched down 3.4 miles WSW of Cortland|in Cortland County NY around 11:32 AM, moving east-northeast at|50 mph. Tree damage along the route was the most common type of|damage, with a swath of tree damage showing a convergent pattern,|which is indication of a brief tornado touching down. Going east|along Route 222, and along residential streets south of Route|222, multiple trees fell in the east-northeast direction, with a|few falling due north. Where convergent damage was evident was|just north of the Cortland County Airport, with a few trees|falling in the southwest direction. Among the damage, some of the|most extensive was mainly large uprooted trees and large snapped|trees. Going further east-northeast, further scattered tree|damage was observed, but did not show a convergent pattern. This|indicated that the brief tornado dissipated before heading into |town, and was residual thunderstorm wind damage.
Strong thunderstorm winds knocked wires down in yard.
Strong thunderstorm winds knocked a tree down on Beaver St.
Strong thunderstorm winds knocked a tree down on East Main St near Hooper Rd.
Strong thunderstorm winds knocked down a tree, blocking both lanes at the intersection of Highway 206 and West Juliand Hill Road.
Strong thunderstorm winds knocked down a tree, power lines, and a utility pole, blocking Squirrel Hill Road.
Strong thunderstorm winds knocked a tree down on roadway.
Strong thunderstorm winds knocked a tree down on East Street.
Strong thunderstorm winds knocked down a tree and wires on Heller Road.
Strong thunderstorm winds knocked a tree down near intersection of Ouaquaga Road and Hawkins Road.
Strong thunderstorm winds knocked a tree down on Harold St.
Strong thunderstorm winds knocked down a tree and power lines, partially blocking the roadway at the intersection of Highway 8 and County Road 35.
Strong thunderstorm winds knocked a tree onto a vehicle, with live wires down on the vehicle. People were reportedly inside, but there were no known injuries.
Strong thunderstorm winds knocked a tree down on Overlook Drive.
Strong thunderstorm winds knocked a tree down on road.
Strong thunderstorm winds knocked multiple trees down around Colchester.
Strong thunderstorms knocked a tree down on road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2026Every state in 2026This day in weather historyThe tornado archive for New York, 2026Warnings in New York, June 2026
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: 1354805, 1354807, 1354808, 1354809, 1354811, 1354814, 1354815, 1354821, 1354825, 1354835, 1354856, 1355008, 1356350, 1354834, 1354858, 1354859, 1355029, 1356365, 1354843, 1354463, 1354845, 1354470, 1354847, 1354861, 1354848, 1356346, 1355013, 1356439, 1354857, 1354799, 1355026, 1355025, 1356452, 1355664, 1355034, 1355031, 1356442, 1355030, 1356456, 1355032, and more.