Scattered, slow moving thunderstorms developed over portions of central New York during the afternoon and evening of June 1st. Thunderstorms became attached to the hillsides in Steuben county, bringing 1 to 2 inches of locally heavy rainfall in less than an hour to rural areas in the north half of the county.
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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.
Scattered, slow moving thunderstorms developed over portions of central New York during the afternoon and evening of June 1st. Thunderstorms became attached to the hillsides in Steuben county, bringing 1 to 2 inches of locally heavy rainfall in less than an hour to rural areas in the north half of the county. Local drainage become overwhelmed by the excessive rainfall. Several road closures, washouts and flooded basements were 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 Jun 1, 9:23 PM EST, 27 minutes earlier.
Area Forecast Discussion National Weather Service Binghamton NY 1023 PM EDT Fri Jun 1 2018 .SYNOPSIS... It will be warm and humid with showers and thunderstorms likely, as a cold front passes this afternoon and evening. Locally heavy rainfall is possible. The weekend will be less humid but still unsettled with scattered showers, mainly from the Twin Tiers southward. Rain chances will be more areawide by Sunday night into Monday. && .NEAR TERM /THROUGH SATURDAY NIGHT/... Temperatures will drop mostly into the low 60s late tonight. This mostly due to cold air advection at low levels. Skies will be cloudy to mostly cloudy. The main challenge tonight will be the redevelopment of these low clouds and if fog could form in place of the clouds. For now, have continued a cloudy forecast overnight with less in the way of fog given some wind. Saturday clouds and scattered showers linger across NEPA as the front stalls in southeast PA. Some humidity still exists but not as much as today. Chances finally diminish to almost nothing Saturday night as the short wave passes and the front drops further south. With the drier air highs mostly in the 70s Saturday and lows in the 50s Saturday night. && .SHORT TERM /SUNDAY THROUGH MONDAY/... Low pressure will be forming near Norfolk,VA during the morning hours Sunday with another trough and area of low pressure approaching our region from the Great Lakes. This second low will move eastward through this period with the low along the coast tracking northeast. Both of these features will lead to moist southeast flow. Showers should be fairly widespread ahead of these features as well with the timing in the Sunday night and Monday morning timeframe. We should be able to squeeze out a decent Sunday with increasing clouds and highs in the 70's. The uncertainty in the forecast involves any clearing Monday afternoon and the resulting high temperature forecast. Right now a 5 SD spread is present with ensemble data with the 12Z GFS being a cold outlier damming the cold across the Catskills and keeping highs in the 40's. Models and ensembles which clear out the rain by Monday afternoon get highs into the 70's. For now, it looks like western portions of the area clear out in the Finger Lakes with the Poconos and southern Catskills seeing the showers linger longer with cold air damming potential. Lows to start Monday should be around 50 with quite the range in highs from the 50's to upper 60's. Total rainfall should range from a quarter to half inch on average. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... Monday night through Wednesday night: A possible lull in more concentrated showers is possible Monday night. However, the trough of low pressure will continue to swing southeast through the region on Tuesday. Some additional showers should form ahead of this trough centered on the afternoon and evening hours Tuesday as lapse rates steepen some. A cooler pattern should continue with highs in the 60's after morning lows in the upper 40's and 50's through Wednesday night. Ensembles in general do not rule out the possibility lingering into Wednesday as well so will continue with a low chance in this period. Thursday through Friday: High pressure builds eastward into the region with more in the way of sunshine and warmer temperatures. Highs should get into the 70's with lows in the 50's. && .AVIATION /03Z SATURDAY THROUGH WEDNESDAY/... Ceilings will begin to lower to MVFR/IFR at all TAF sites 02-05Z time period with the exact timing still somewhat uncertain. These ceilings will be stubborn to lift tomorrow morning as well with some locations taking till around 16Z to return to VFR ceilings. Northwest winds will generally be 10 knots or less throughout the TAF period. However, an isolated wind gust to 20 knots can not be ruled out tomorrow afternoon. Outlook... Saturday night through Sunday...Mainly VFR. Sunday night through Monday...Periods of showers and at times restrictions. Monday night through Tuesday...VFR, some showers Tuesday afternoon. && .BGM WATCHES/WARNINGS/ADVISORIES... PA...None. NY...None. && SYNOPSIS...TAC NEAR TERM...MWG/TAC SHORT TERM...MWG LONG TERM...MWG AVIATION...MWG
Hazardous Weather Outlook National Weather Service Binghamton NY 950 PM EDT Fri Jun 1 2018 NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043- 044-047-048-072-030200- 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- 950 PM EDT Fri Jun 1 2018 This Hazardous Weather Outlook is for central New York and northeast Pennsylvania. .DAY ONE...Tonight. No hazardous weather is expected at this time. .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. Jurewicz
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
622 PM EDT FRI JUN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM FLOOD COHOCTON 42.50N 77.50W
06/01/2018 STEUBEN NY EMERGENCY MNGR
SEVERAL BASEMENTS AND STREETS FLOODED. OVER 2 INCHES OF
RAIN FELL (ESTIMATED) IN A SHORT PERIOD OF TIME.
&&
BJGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
635 PM EDT FRI JUN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM FLOOD BATH 42.34N 77.32W
06/01/2018 STEUBEN NY PUBLIC
ABOUT 1 INCH OF WATER IN BASEMENTS IN THE BATH AREA.
&&
BJGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
640 PM EDT FRI JUN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0413 PM HEAVY RAIN NORTH THURSTON 42.27N 77.28W
06/01/2018 M0.74 INCH STEUBEN NY TRAINED SPOTTER
0.74" RAIN FELL IN 20 MINUTES (4:13PM-4:33PM)
&&
BJGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
642 PM EDT FRI JUN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 PM HEAVY RAIN BATH 42.34N 77.32W
06/01/2018 M2.20 INCH STEUBEN NY PUBLIC
2.20" RAIN FELL SINCE STORM STARTED JUST AFTER 4PM.
&&
BJGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
648 PM EDT FRI JUN 01 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM FLOOD COHOCTON 42.50N 77.50W
06/01/2018 STEUBEN NY EMERGENCY MNGR
WATER FLOWING DOWN REYNOLDS CREEK ROAD.
&&
BJGSpecial Weather Statement
National Weather Service Binghamton NY
655 PM EDT FRI JUN 1 2018
NYZ015>017-023-025-020000-
Southern Cayuga NY-Seneca NY-Yates NY-Schuyler NY-Tompkins NY-
655 PM EDT FRI JUN 1 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHERN SENECA...
NORTHERN SCHUYLER...EASTERN YATES...SOUTHWESTERN CAYUGA AND
NORTHWESTERN TOMPKINS COUNTIES UNTIL 800 PM EDT...
At 653 PM EDT, a cluster of strong thunderstorms was located along a
line from near Dresden, to near Himrod, to near Pulteney. Movement
was east at 20 mph.
Strong wind gusts between 30 and 40 mph will be possible with these
storms. A wind gust around 30 mph was recently report by weather
observation equipment near Penn Yan.
Locations impacted include...
Ithaca, Penn Yan, Hector, Romulus, Cayuga Heights, Starkey, Lansing,
Enfield, Covert and Locke.
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.
Additional statements will be issued as conditions warrant.
&&
LAT...LON 4259 7706 4276 7705 4276 7698 4277 7697
4273 7640 4246 7642 4235 7670 4247 7711
4251 7711 4249 7713 4250 7715 4256 7715
TIME...MOT...LOC 2253Z 285DEG 18KT 4270 7699 4258 7700 4254 7710
DABThe Buffalo radar (KBUF), 107 km away, was scanning. The volume nearest the first event began at 02:50 UTC.
1 flash flood. Local standard time, as filed.
In excess of 2 inches of rainfall caused basement flooding and road closures at several locations in the Town of Cohocton. Water was flowing down Reynolds Creek Road, Wilcox Street, and Unionville Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New York in 2018Every state in 2018This day in weather historyWarnings in New York, June 2018
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: 768104.