New York, 2017

Flash Flooding and Flood in New York, July 1 to 2, 2017

July 1 to 2, 2017 · NWS BGM · 33 events in 4 counties and zones

A tropical moisture laden air mass produced numerous showers and thunderstorms which traveled repeatedly over the same areas of the Finger Lakes Region and Upper Mohawk Valley. Widespread flash and urban flooding developed in portions of Cayuga, Onondaga, Madison and Oneida counties.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
$19 million
Crop damage
None recorded
Events
33

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.

What happened

The episode as NWS BGM wrote it up.

A tropical moisture laden air mass produced numerous showers and thunderstorms which traveled repeatedly over the same areas of the Finger Lakes Region and Upper Mohawk Valley. Widespread flash and urban flooding developed in portions of Cayuga, Onondaga, Madison and Oneida counties. Hardest hit areas were the villages and towns of Moravia, Chittenango, Oneida, and Utica to name a few. Total rainfall amounts along a narrow corridor from Moravia to Utica generally ranged from 2.5 to 5 inches, most of which fell in less than 1 to 2 hours. Total damages from this event range from $10-$15 million dollars.

What forecasters said that day

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 1, 5:53 AM EST, 3 hours 29 minutes earlier.

Area forecast discussion, Jul 1, 5:53 AM EST, 3 hours 29 minutes before
Area Forecast Discussion
National Weather Service Binghamton NY
653 AM EDT Sat Jul 1 2017

.SYNOPSIS...
There will be showers and thunderstorms again today ahead of a
cold front. Some storms could contain damaging winds, hail, and
locally heavy rainfall. The weather pattern should finally quiet
down early next week courtesy of high pressure.
&&

.NEAR TERM /THROUGH TONIGHT/...
230 AM Update...
More active weather on tap for this weekend. As of this time,
surface low pressure was moving slowly through northern Ontario
with a broad upper trough over central Canada extending into the
north central CONUS. This is putting the area in a SW flow with
a warm, muggy airmass across the area and a series of
disturbances moving around the trough helping bring the area
rounds of showers and storms. The next disturbance is currently
bringing showers and storms into western PA/NY and as these move
northeast expect them to clip the lake plain region overnight
into early Saturday morning. For this reason, upped the POPs in
this area. Beyond this time expect a brief break before
additional showers and storms develop over western parts of the
forecast area through the Finger Lakes by the early afternoon
and then move east through the afternoon before exiting in the
evening. The trigger will be an upper level wave with a pre-
frontal trough at the surface aided by daytime heating. The
parameters are still favorable for at least some of these storms
to be severe as models indicate ML CAPE likely topping 1000
j/kg with 0-1/0-3/0-6 km bulk shear values indicated to be
20/25/40 knots respectively. Also worth noting, 0-1 km SRH
values indicated to be near 100 m2s2 with low LCLs and PWAT
values reaching the 1.75 – 2.00 inch range. The upshot of all
this is that the instability with sufficient enough deep layer
shear should be enough for storms to be organized and
potentially produce severe weather. The SPC continues to keep
the area in a Slight Risk. Line segments, bowing segments, and
even a few supercells will be possible. Similar to yesterday,
greatest threat appears to be damaging winds with large hail a
lesser threat. Also, given the SRH and low level shear with low
LCLs an isolated tornado or two still can not be ruled out.
Finally, any storms will be capable of producing heavy rain so
there is the potential for localized flash flooding...especially
across the far north. Highs will generally reach the low to mid
80s before storms arrive with oppressive humidity levels.

By early evening, main area of storms should be confined to
areas east of I-81 where severe weather will remain possible
before storms exit by mid evening with severe weather threat
winding down at this time. A few isolated showers or storms may
still be possible at least into the early part of the overnight
until the actual cold front passes but are not likely to be
severe by this time. By Sunday morning, lows will be generally
in the mid 60s as cooler, drier air will be filtering in.

&&

.SHORT TERM /SUNDAY THROUGH TUESDAY/...
320 AM update...
Finally a quieter period, though not without a chance of a few
sporadic pop-up diurnal showers/isolated thunderstorms, at least
for Sunday and Monday anyways.

Initial cold front will be well through the area Sunday,
allowing for temperatures and especially dewpoints to scale back
a bit. However, upper level flow will still be cyclonic around
large upper low centered in Eastern Canada. Diurnal heating will
likely still realize a cumulus field and even isolated to
scattered showers along with a slight chance of thunder Sunday
afternoon. Nothing severe, though with inverted-V profile in
lowest 5 thousand feet of model soundings, there could be decent
brief stronger gusts underneath the showers/thunder. Highs
Sunday will be near climatology; in the upper 70s to mid 80s.

Fairly quiet conditions Sunday night, with a secondary front
slipping through part of the area overnight. A much drier air
mass arrives on Monday with high pressure at the surface
starting to build in from the west. However, the secondary front
will still be finishing its trek through the area. Thus
scattered showers and isolated thunder will still be possible
mainly from the Southern Tier-Catskills NY early afternoon,
into Northeast PA mid-to-late afternoon. Again, with the amount
of dry air involved, this activity could generate some cool-pool
gusts. Highs Monday will be mainly 70s north to upper 70s-lower
80s south.

&&

.LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/...
330 AM update...
Forecast adjusted towards latest multi-model blend with not much
change to the prior forecast overall. Confidence continues to
increase on wetter conditions taking shape particularly into
Thursday, with a system that will have a potentially good
hookup to Gulf of Mexico moisture.

Previous discussion...
Main concerns in the long term are focused around cool/dry air mass
to begin with and the development of more showers and storms late
Wednesday into Thursday.

High pressure dominates the region on Independence Day with weak
ridging aloft. Will start to see a gradual warm up into the middle
of the week with widespread highs into the lower 80s by Wednesday.
The surface high shifts to the east Wednesday with a return sly flow
helping to heat things up a bit. This will also help set up the
atmosphere for additional showers and storms late Wed and Thursday
as an area of low pressure moves ewd across Pennsylvania. Will need
to watch this system through the next several days as it appears to
be capable of tapping into a deep moisture source and be fairly
dynamic...so there may be a hydro concern later next week.

&&

.AVIATION /12Z SATURDAY THROUGH WEDNESDAY/...
Mainly VFR this morning with a couple exceptions...KAVP should
continue to see MVFR cigs and also some showers with even the
risk of another thunderstorm may effect KELM this morning
producing brief restrictions. Heading into this afternoon the
main focus will be afternoon showers and thunderstorms that are
expected to develop ahead of a cold front and affect all sites
as they move through west to east...beginning by around 18z for
KELM and exiting all TAF sites by the early evening. Most sites
should see at least MVFR restrictions with IFR likely for at
least KAVP and KBGM.

Winds increase to SW around 10 knots today with some higher
gusts. It should be noted, any storms this afternoon could
produce strong winds at any of the TAF sites.

Outlook...

Sunday through Monday...Mainly VFR but still a small chance for
showers-thunder and associated restrictions mainly in the
afternoon hours.

Tuesday - Wednesday...mainly VFR.

&&

.BGM WATCHES/WARNINGS/ADVISORIES...
PA...None.
NY...None.

&&

SYNOPSIS...PCF
NEAR TERM...PCF
SHORT TERM...MDP
LONG TERM...BJT/MDP
AVIATION...DJP/PCF
Hazardous weather outlook, Jul 1, 2:57 AM EST, 6 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service Binghamton NY
357 AM EDT Sat Jul 1 2017

NYZ009-015>018-022>025-036-037-044>046-055>057-062-PAZ038>040-043-
044-047-048-072-020800-
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-
357 AM EDT Sat Jul 1 2017

This Hazardous Weather Outlook is for central New York and
northeast Pennsylvania.

.DAY ONE...Today and Tonight.

Showers and thunderstorms will develop across the area this afternoon
ahead of a cold front with conditions favorable for some of these to
become severe. The primary threat will be for damaging winds, though
large hail and perhaps even an isolated tornado is possible. Heavy
rainfall will be possible as well with the risk of localized flash
flooding.

Storms will move out by the mid evening with the severe
weather threat winding down at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather they see this
afternoon.

In the hours before

Special weather statement, Jul 1, 3:32 AM EST, 5 hours 50 minutes before
Special Weather Statement
National Weather Service Binghamton NY
432 AM EDT SAT JUL 1 2017

NYZ015>017-022>025-010915-
Steuben NY-Chemung NY-Southern Cayuga NY-Seneca NY-Yates NY-
Schuyler NY-Tompkins NY-
432 AM EDT SAT JUL 1 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHEASTERN
SENECA...SCHUYLER...SOUTHEASTERN YATES...SOUTHERN CAYUGA...CHEMUNG...
SOUTHEASTERN STEUBEN AND WESTERN TOMPKINS COUNTIES UNTIL 515 AM
EDT...

At 431 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from Dundee to near Elkland. Movement was northeast
at 40 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms. This is strong enough to cause minor tree damage such
as broken branches, and perhaps a few power outages.

Locations impacted include...
Ithaca, Elmira, Corning, Southport, Big Flats, Horseheads, Newfield,
Hector, Elmira Heights and Cayuga Heights.

LAT...LON 4254 7698 4284 7634 4278 7627 4208 7662
      4200 7686 4200 7724
TIME...MOT...LOC 0831Z 241DEG 33KT 4250 7697 4195 7723

MDP
Special weather statement, Jul 1, 4:12 AM EST, 5 hours 10 minutes before
Special Weather Statement
National Weather Service Binghamton NY
512 AM EDT SAT JUL 1 2017

NYZ016>018-023>025-044-055-056-011000-
Chemung NY-Onondaga NY-Cortland NY-Southern Cayuga NY-Seneca NY-
Schuyler NY-Tioga NY-Broome NY-Tompkins NY-
512 AM EDT SAT JUL 1 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT...SOUTHEASTERN
SENECA...EASTERN SCHUYLER...NORTHWESTERN BROOME...SOUTHEASTERN
CAYUGA...NORTHEASTERN CHEMUNG...CORTLAND...NORTHERN TIOGA...SOUTH
CENTRAL ONONDAGA AND TOMPKINS COUNTIES UNTIL 600 AM EDT...

At 511 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Townsendville to Erin. Movement was
northeast at 45 mph.

Wind gusts of 40 mph will be possible with these storms. This is
strong enough to cause minor tree damage such as broken branches,
and perhaps a few power outages. Small hail is also possible.

Locations impacted include...
Ithaca, Cortland, Newfield, Cayuga Heights, Lansing, Enfield, Danby,
Homer, Caroline and Virgil.

LAT...LON 4290 7606 4234 7594 4210 7671 4263 7677
TIME...MOT...LOC 0911Z 240DEG 38KT 4258 7672 4220 7667

MDP
Special weather statement, Jul 1, 5:36 AM EST, 3 hours 46 minutes before
Special Weather Statement
National Weather Service Binghamton NY
636 AM EDT SAT JUL 1 2017

NYZ036-037-045-046-011115-
Otsego NY-Chenango NY-Southern Oneida NY-Madison NY-
636 AM EDT SAT JUL 1 2017

...STRONG THUNDERSTORM WILL AFFECT...FAR SOUTHERN ONEIDA...
NORTHWESTERN OTSEGO...SOUTHEASTERN MADISON AND NORTHEASTERN CHENANGO
COUNTIES UNTIL 715 AM EDT...

At 635 AM EDT, Doppler radar was tracking a strong thunderstorm over
Smyrna, or 9 miles northwest of Norwich, moving northeast at 45 mph.

Dime size hail and winds of 40 mph will be possible with this storm.
This is strong enough to cause minor tree damage such as broken
branches, and perhaps a few power outages.

Locations impacted include...
Brookfield, Edmeston, Plymouth, North Norwich, Sherburne,
Springfield, Richfield Springs, Burlington, Otselic and Columbus.

LAT...LON 4254 7563 4270 7575 4297 7521 4288 7520
      4287 7521 4286 7520 4286 7514 4291 7509
      4283 7490 4289 7488 4290 7486 4283 7480
TIME...MOT...LOC 1035Z 240DEG 40KT 4266 7560

MDP
Special weather statement, Jul 1, 6:21 AM EST, 3 hours 1 minute before
Special Weather Statement
National Weather Service Binghamton NY
721 AM EDT SAT JUL 1 2017

NYZ046-011130-
Otsego NY-
721 AM EDT SAT JUL 1 2017

...STRONG THUNDERSTORM WILL AFFECT...NORTH CENTRAL OTSEGO COUNTY
UNTIL 730 AM EDT...

At 720 AM EDT, Doppler radar was tracking a strong thunderstorm near
Richfield Springs, or 10 miles south of Ilion, moving northeast at 40
mph.

Dime size hail and wind gusts to 40 mph will be possible with this
storm.

Locations impacted include...
Youngs Crossing, Millers Mills Crossing, and just west of Richfield
Springs.

LAT...LON 4280 7514 4286 7522 4286 7514 4290 7511
      4291 7509 4288 7502 4285 7496
TIME...MOT...LOC 1120Z 240DEG 34KT 4287 7508

MDP
Local storm report, Jul 1, 7:48 AM EST, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BINGHAMTON NY
848 AM EDT SAT JUL 01 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0525 PM     TSTM WND DMG     SAUQUOIT                43.00N  75.25W
06/30/2017                   ONEIDA             NY   FACEBOOK

            MULTIPLE TREES AND LINES DOWN. SOME DAMAGE TO ROOF
            SIDING AND DOOR.

&&

MDP

The radar

The Ft Drum radar (KTYX), 81 km away, was scanning. The volume nearest the first event began at 14:21 UTC.

Open the radar archive at this moment

Event by event

32 flash flood, 1 flood. Local standard time, as filed.

Flash Flood, Oneida

When
July 1, 9:22 AM EST to 4:20 PM EST
Where
Oneida County, 0.86 mi NE of New Hartford to 0.86 mi SE of Ridgewood
Cause
Heavy Rain
Property damage
$500,000
Reported by
Emergency Manager
Coordinates
43.080, -75.290

Widespread urban flash flooding occurred throughout the City of Utica. Several roads were flooded and cars were stranded in areas of deep water within underpasses and parking lots. Motorists were forced to abandon vehicles in several areas, and some residences were flooded.

Flash Flood, Cayuga

When
July 1, 9:30 AM EST to 4:15 PM EST
Where
Cayuga County, Casowasco to 1.52 mi W of Moravia Vans Arpt
Cause
Heavy Rain
Property damage
$400,000
Reported by
Emergency Manager
Coordinates
42.780, -76.480

Widespread flash flooding of most creeks and urbanized areas occurred throughout Moravia. Many residents were evacuated from their homes in low lying areas. Culverts and roads were washed out in many locations. Public and private infrastructure damage was extensive.

Flash Flood, Cayuga

When
July 1, 9:45 AM EST to 4:15 PM EST
Where
Cayuga County, 0.69 mi S of Ledyard to 1.38 mi ENE of East Venice
Cause
Heavy Rain
Property damage
$725,000
Reported by
Emergency Manager
Coordinates
42.690, -76.620

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Venice. Culverts and roads were washed out in several locations. Some residences and businesses experienced flooding.

Flash Flood, Cayuga

When
July 1, 9:45 AM EST to 4:15 PM EST
Where
Cayuga County, 1.01 mi W of Kelloggsville to 0.86 mi SE of Montville
Cause
Heavy Rain
Property damage
$725,000
Reported by
Emergency Manager
Coordinates
42.780, -76.370

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Sempronius. Culverts and roads were washed out in several places. Some residences and businesses experienced flooding.

Flash Flood, Cayuga

When
July 1, 10:00 AM EST to 4:15 PM EST
Where
Cayuga County, 0.69 mi N of King Ferry to 2.03 mi N of Goodyear Corners
Cause
Heavy Rain
Property damage
$900,000
Reported by
Emergency Manager
Coordinates
42.680, -76.620

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Genoa. Many residents were evacuated from their homes in low lying areas. The US Post Office in the village was inundated by flood waters. Culverts and roads were washed out in several places.

Flash Flood, Cayuga

When
July 1, 10:00 AM EST to 4:15 PM EST
Where
Cayuga County, 2.15 mi WSW of Moravia Vans Arpt to 2.57 mi ESE of East Genoa
Cause
Heavy Rain
Property damage
$360,000
Reported by
Emergency Manager
Coordinates
42.690, -76.460

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Locke. Culverts and roads were washed out in several places. Some residences and businesses experienced flooding.

Flash Flood, Oneida

When
July 1, 10:18 AM EST to 4:15 PM EST
Where
Oneida County, 2.02 mi E of Clark Mills to Clark Mills
Cause
Heavy Rain
Property damage
$1.0 million
Reported by
Emergency Manager
Coordinates
43.100, -75.340

Widespread flash flooding of small streams and urbanized areas occurred throughout the town of New Hartford. Culverts and roads were washed out in several locations. Several residences and businesses experienced flooding.

Flash Flood, Onondaga

When
July 1, 11:19 AM EST to 4:15 PM EST
Where
Onondaga County, 1.38 mi N of Amber to 0.86 mi ESE of Marcellus
Cause
Heavy Rain
Property damage
$8,000
Reported by
Emergency Manager
Coordinates
42.900, -76.280

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Onondaga. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Oneida

When
July 1, 11:29 AM EST to 4:15 PM EST
Where
Oneida County, 1.21 mi NW of Marcy to 1.96 mi W of Sunset Manor
Cause
Heavy Rain
Property damage
$690,000
Reported by
Emergency Manager
Coordinates
43.181, -75.319

Widespread flash flooding of small streams and urbanized areas occurred throughout the towns of Marcy and Whitesboro. Culverts and roads were washed out in several locations. Several residences and businesses experienced flooding.

Flash Flood, Oneida

When
July 1, 11:45 AM EST to 4:15 PM EST
Where
Oneida County, 0.86 mi SW of Sconondoa to 0.86 mi W of Scribner Corners
Cause
Heavy Rain
Property damage
$700,000
Reported by
Emergency Manager
Coordinates
43.090, -75.640

Widespread flash flooding of small streams and urbanized areas occurred throughout the towns of Sherrill and Vernon. Culverts and roads were washed out in several locations. Several residences and businesses experienced flooding.

Flash Flood, Oneida

When
July 1, 11:50 AM EST to 4:15 PM EST
Where
Oneida County, Clark Mills to 2.13 mi W of New Hartford
Cause
Heavy Rain
Property damage
$2.6 million
Reported by
Emergency Manager
Coordinates
43.100, -75.380

Widespread flash flooding of small streams and urbanized areas continued, and became more severe, throughout the town of Kirkland. Culverts and roads were washed out in several locations. Several residences and businesses experienced significant flooding.

Flash Flood, Oneida

When
July 1, 12:15 PM EST to 4:20 PM EST
Where
Oneida County, 0.86 mi SW of Lowell to 0.86 mi SW of Lairdsville
Cause
Heavy Rain
Property damage
$350,000
Reported by
Emergency Manager
Coordinates
43.120, -75.510

Widespread flash flooding of small streams and urbanized areas occurred throughout the town of Westmoreland. Culverts and roads were washed out in several locations. Several residences and businesses experienced significant flooding.

Flash Flood, Oneida

When
July 1, 12:20 PM EST to 4:20 PM EST
Where
Oneida County, 0.86 mi SE of Stanwix Hgts to 0.86 mi SE of Clark Mills
Cause
Heavy Rain
Property damage
$230,000
Reported by
Emergency Manager
Coordinates
43.170, -75.420

Widespread flash flooding of small streams and urbanized areas occurred throughout the town of Whitesboro. Culverts and roads were washed out in several locations. Several residences and businesses experienced significant flooding.

Flash Flood, Onondaga

When
July 1, 1:21 PM EST to 4:15 PM EST
Where
Onondaga County, 1.38 mi S of Southwood to 0.51 mi NNE of Vesper
Cause
Heavy Rain
Property damage
$935,000
Reported by
Emergency Manager
Coordinates
42.980, -76.100

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Lafayette. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Onondaga

When
July 1, 1:23 PM EST to 4:15 PM EST
Where
Onondaga County, 0.86 mi SW of Oot Park to 1.66 mi N of Fillmore Corner
Cause
Heavy Rain
Property damage
$18,000
Reported by
Emergency Manager
Coordinates
43.060, -76.040

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Manlius. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Madison

When
July 1, 1:35 PM EST to 4:20 PM EST
Where
Madison County, 1.22 mi SE of Fyler Settlement to 2.05 mi WSW of New Woodstock
Cause
Heavy Rain
Property damage
$160,000
Reported by
Emergency Manager
Coordinates
43.090, -75.910

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Sullivan. Culverts and roads were washed out in several places. Some residences experienced flooding, especially along Chittenango Creek.

Flash Flood, Madison

When
July 1, 2:15 PM EST to 4:20 PM EST
Where
Madison County, 2.13 mi ENE of Union Corners to 1.22 mi E of Oneida
Cause
Heavy Rain
Property damage
$15,000
Reported by
Emergency Manager
Coordinates
43.130, -75.710

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Oneida. Culverts and roads were washed out in several places. Some residences experienced flooding, especially along parts of Oneida creek.

Flash Flood, Onondaga

When
July 1, 2:20 PM EST to 4:15 PM EST
Where
Onondaga County, 2.05 mi SE of Mandana to 1.47 mi W of Mottville
Cause
Heavy Rain
Property damage
$3.1 million
Reported by
Emergency Manager
Coordinates
42.850, -76.370

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Skaneateles. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Onondaga

When
July 1, 2:24 PM EST to 4:15 PM EST
Where
Onondaga County, 0.86 mi SW of Oot Park to 1.66 mi N of Fillmore Corner
Cause
Heavy Rain
Property damage
$18,000
Reported by
Emergency Manager
Coordinates
43.060, -76.040

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Manlius. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Onondaga

When
July 1, 2:33 PM EST to 4:15 PM EST
Where
Onondaga County, 1.01 mi E of Williams Grove to 1.47 mi SSW of Vesper
Cause
Heavy Rain
Property damage
$88,000
Reported by
Emergency Manager
Coordinates
42.850, -76.210

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Tully. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Madison

When
July 1, 2:36 PM EST to 4:20 PM EST
Where
Madison County, 0.51 mi E of Cazenovia to 2.62 mi SE of New Woodstock
Cause
Heavy Rain
Property damage
$22,000
Reported by
Emergency Manager
Coordinates
42.930, -75.810

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Nelson. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Madison

When
July 1, 2:50 PM EST to 4:20 PM EST
Where
Madison County, 1.47 mi SSW of Kenwood to 2.14 mi NW of Pratts Hollow
Cause
Heavy Rain
Property damage
$40,000
Reported by
Emergency Manager
Coordinates
43.030, -75.630

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Stockbridge. Culverts and roads were washed out in several places. Some residences experienced flooding, especially along the Oneida Creek in Munnsville.

Flash Flood, Onondaga

When
July 1, 3:00 PM EST to 4:15 PM EST
Where
Onondaga County, 1.23 mi SE of Tully to 1.01 mi SE of Fabius
Cause
Heavy Rain
Property damage
$1.2 million
Reported by
Emergency Manager
Coordinates
42.790, -76.080

Widespread flash flooding of most creeks and urbanized areas occurred throughout the towns of Fabius and Pompey. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Madison

When
July 1, 3:03 PM EST to 4:20 PM EST
Where
Madison County, 2.05 mi SW of Merrillsville to 2.14 mi ENE of Nelson
Cause
Heavy Rain
Property damage
$15,000
Reported by
Emergency Manager
Coordinates
43.000, -75.710

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Smithfield. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Oneida

When
July 1, 3:05 PM EST to 4:20 PM EST
Where
Oneida County, 0.86 mi NE of New Hartford to 0.86 mi SE of Ridgewood
Cause
Heavy Rain
Property damage
$600,000
Reported by
Emergency Manager
Coordinates
43.080, -75.290

Widespread flash flooding continued in parts of the City of Utica, particularly along the length of Sauquoit Creek. Urban flooding continued, and increased across the city with the passing of additional thunderstorms during the afternoon. Road closures, evacuations and water rescues were common along Sauquoit Creek.

Flash Flood, Madison

When
July 1, 3:21 PM EST to 4:20 PM EST
Where
Madison County, 2.94 mi SSW of Peterboro to 1.23 mi WSW of West Eaton
Cause
Heavy Rain
Property damage
$340,000
Reported by
Emergency Manager
Coordinates
42.930, -75.690

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Eaton. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Cayuga

When
July 1, 3:30 PM EST to 4:20 PM EST
Where
Cayuga County, Casowasco to 1.52 mi W of Moravia Vans Arpt
Cause
Heavy Rain
Property damage
$200,000
Reported by
Emergency Manager
Coordinates
42.780, -76.480

Widespread flash flooding continued along most creeks and urbanized areas throughout Moravia. Many residents were evacuated from their homes in low lying areas. Culverts and roads were washed out in many locations. The Owasco Lake Inlet exceeded its major flood stage.

Flash Flood, Oneida

When
July 1, 3:30 PM EST to 4:20 PM EST
Where
Oneida County, 2.02 mi E of Clark Mills to Clark Mills
Cause
Heavy Rain
Property damage
$1.0 million
Reported by
Emergency Manager
Coordinates
43.100, -75.340

Widespread flash flooding continued across the town of New Hartford, particularly along the reach of Sauqoit Creek where roads were flooded, and homes and businesses experienced significant flood damage. Evacuations and water rescues occurred along the creek and in other parts of the town.

Flash Flood, Oneida

When
July 1, 3:45 PM EST to 4:20 PM EST
Where
Oneida County, Clark Mills to 2.13 mi W of New Hartford
Cause
Heavy Rain
Property damage
$1.3 million
Reported by
Emergency Manager
Coordinates
43.100, -75.380

Widespread flash flooding of small streams and urbanized areas continued, and became more severe, throughout the town of Kirkland, particularly in the Clinton area along Sherman Brook and Oriskany Creek. Culverts and roads were washed out in several locations. Several residences and businesses experienced significant flooding. Evacuations and water rescues occurred around Clinton and Kirkland.

Flash Flood, Oneida

When
July 1, 3:50 PM EST to 4:20 PM EST
Where
Oneida County, 0.86 mi SE of Stanwix Hgts to 0.86 mi SE of Clark Mills
Cause
Heavy Rain
Property damage
$230,000
Reported by
Emergency Manager
Coordinates
43.170, -75.420

Widespread flash flooding of small streams and urbanized areas continued, and became more severe, throughout the town of Whitesboro, particularly along Oriskany Creek near Oriskany . Culverts and roads were washed out in several locations. Several residences and businesses experienced significant flooding. Evacuations and water rescues occurred from Walesville to Oriskany.

Flash Flood, Madison

When
July 1, 4:00 PM EST to 4:20 PM EST
Where
Madison County, 1.22 mi SW of Quality Hill to 1.22 mi SSE of Cottons
Cause
Heavy Rain
Property damage
$30,000
Reported by
Emergency Manager
Coordinates
43.060, -75.800

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Lincoln. Culverts and roads were washed out in several places. Some residences experienced flooding.

Flash Flood, Madison

When
July 1, 4:01 PM EST to 4:20 PM EST
Where
Madison County, 1.47 mi SSE of Mesenger Bay to 2.44 mi SW of Quality Hill
Cause
Heavy Rain
Property damage
$22,000
Reported by
Emergency Manager
Coordinates
43.150, -75.810

Widespread flash flooding of most creeks and urbanized areas occurred throughout the town of Lenox. Culverts and roads were washed out in several places. Some residences experienced flooding, especially along the Canastota Creek and Cowaseon Creek.

Flood, Oneida

When
July 1, 4:13 PM EST to July 2, 6:25 AM EST
Where
Oneida County, 1.19 mi SE of Durhamville to 1.13 mi ENE of Oneida Castle
Cause
Heavy Rain
Property damage
$100,000
Reported by
River/Stream Gage
Coordinates
43.109, -75.662

Rapid rises along the Oneida Creek caused a crest above the Major flood stage. The river crested at 15.76 feet on the morning of July 2nd. Widespread, serious flooding occurred around the City of Oneida and surrounding areas, as well as upstream from the gauge. This crest is the second highest crest on record.

What these are

Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in New York in 2017Every state in 2017This day in weather historyWarnings in New York, July 2017

Sources

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: 707398, 707123, 707125, 707130, 707127, 707132, 707376, 707332, 707381, 707384, 707385, 707380, 707393, 707337, 707338, 707358, 707364, 707339, 707340, 707342, 707359, 707360, 707352, 707361, 707372, 707362, 707357, 707397, 707404, 707405, 707365, 707363, 715206.