Alert archive / New York / Small Craft Advisories in 2025

Small Craft Advisory 57, NWS Buffalo, NY

June 18, 2025

NWS Buffalo, NY issued this small craft advisory at Jun 18, 2025, 10:00 PM EDT. It took effect at Jun 19, 2025, 8:00 AM EDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued
Jun 18, 2025, 10:00 PM EDT (02:00 UTC)
In effect from
Jun 19, 2025, 8:00 AM EDT
Expired
Jun 20, 2025, 2:00 PM EDT
In force
30 hr
Issued by
NWS Buffalo, NY

The text

As transmitted.

810 
WHUS71 KBUF 190200
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
1000 PM EDT Wed Jun 18 2025

LEZ040-041-191000-
/O.NEW.KBUF.SC.Y.0057.250619T1200Z-250620T0000Z/
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
1000 PM EDT Wed Jun 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 8 PM EDT
THURSDAY...

* WHAT...Southwest winds 15 to 20 knots and waves 3 to 6 feet 
  expected.

* WHERE...The nearshore waters of Lake Erie from Ripley to 
  Buffalo.

* WHEN...From 8 AM to 8 PM EDT Thursday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ042-191000-
/O.NEW.KBUF.SC.Y.0057.250619T1200Z-250620T0600Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
1000 PM EDT Wed Jun 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM THURSDAY TO 2 AM EDT
FRIDAY...

* WHAT...West winds 15 to 25 knots and waves 3 to 6 feet 
  expected.

* WHERE...The nearshore waters of Lake Ontario from the Niagara 
  River to Hamlin Beach.

* WHEN...From 8 AM Thursday to 2 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ043>045-191000-
/O.NEW.KBUF.SC.Y.0057.250619T1500Z-250620T1200Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
1000 PM EDT Wed Jun 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM THURSDAY TO 8 AM EDT
FRIDAY...

* WHAT...West winds 15 to 25 knots and waves 5 to 8 feet 
  expected.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...From 11 AM Thursday to 8 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

JJR
7 follow-up statements
203 
WHUS71 KBUF 190752
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
352 AM EDT Thu Jun 19 2025

LEZ020-192000-
/O.EXB.KBUF.SC.Y.0057.250619T1300Z-250620T0200Z/
Upper Niagara River and Buffalo Harbor-
352 AM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 10 PM
EDT THIS EVENING...

* WHAT...West winds 15 to 25 knots expected.

* WHERE...The Upper Niagara River and Buffalo Harbor.

* WHEN...From 9 AM this morning to 10 PM EDT this evening.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LEZ040-041-192000-
/O.EXT.KBUF.SC.Y.0057.250619T1200Z-250620T0200Z/
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
352 AM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO
10 PM EDT THIS EVENING...

* WHAT...Southwest winds 15 to 25 knots and waves 4 to 7 feet 
  expected.

* WHERE...The nearshore waters of Lake Erie from Ripley to 
  Buffalo.

* WHEN...From 8 AM this morning to 10 PM EDT this evening.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ042-192000-
/O.EXT.KBUF.SC.Y.0057.250619T1200Z-250620T0800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
352 AM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM THIS MORNING TO
4 AM EDT FRIDAY...

* WHAT...West winds 15 to 25 knots and waves 5 to 8 feet 
  expected.

* WHERE...The nearshore waters of Lake Ontario from the Niagara 
  River to Hamlin Beach.

* WHEN...From 8 AM this morning to 4 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ043>045-192000-
/O.CON.KBUF.SC.Y.0057.250619T1500Z-250620T1200Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
352 AM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 8 AM EDT FRIDAY...

* WHAT...West winds 15 to 25 knots and waves 7 to 10 feet 
  expected.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...From 11 AM this morning to 8 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
092 
WHUS71 KBUF 191948
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
348 PM EDT Thu Jun 19 2025

LOZ043>045-201200-
/O.EXT.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
348 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT FRIDAY...

* WHAT...West winds to 30 knots and waves 9 to 12 feet.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...Until 2 PM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LEZ040-041-200200-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T0200Z/
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
348 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WHAT...West winds 15 to 25 knots and waves 3 to 6 feet.

* WHERE...The nearshore waters of Lake Erie from Ripley to 
  Buffalo.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ042-200800-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T0800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
348 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT FRIDAY...

* WHAT...West winds to 30 knots and waves 6 to 9 feet.

* WHERE...The nearshore waters of Lake Ontario from the Niagara 
  River to Hamlin Beach.

* WHEN...Until 4 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LEZ020-200200-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T0200Z/
Upper Niagara River and Buffalo Harbor-
348 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

* WHAT...West winds 15 to 25 knots.

* WHERE...The Upper Niagara River and Buffalo Harbor.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
542 
WHUS71 KBUF 200156
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
956 PM EDT Thu Jun 19 2025

LEZ020-200300-
/O.EXP.KBUF.SC.Y.0057.000000T0000Z-250620T0200Z/
Upper Niagara River and Buffalo Harbor-
956 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM EDT THIS EVENING...


$$

LEZ040-041-200400-
/O.EXT.KBUF.SC.Y.0057.000000T0000Z-250620T0400Z/
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
956 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL MIDNIGHT EDT
TONIGHT...

* WHAT...West winds 15 to 20 knots and waves 3 to 5 feet.

* WHERE...The nearshore waters of Lake Erie from Ripley to 
  Buffalo.

* WHEN...Until midnight EDT tonight.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ042-200800-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T0800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
956 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT FRIDAY...

* WHAT...West winds to 30 knots and waves 6 to 9 feet.

* WHERE...The nearshore waters of Lake Ontario from the Niagara 
  River to Hamlin Beach.

* WHEN...Until 4 AM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ043>045-201000-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
956 PM EDT Thu Jun 19 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT FRIDAY...

* WHAT...West winds to 30 knots and waves 9 to 12 feet.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...Until 2 PM EDT Friday.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
253 
WHUS71 KBUF 200414
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
1214 AM EDT Fri Jun 20 2025

LEZ040-041-200515-
/O.EXP.KBUF.SC.Y.0057.000000T0000Z-250620T0400Z/
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
1214 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY HAS EXPIRED...

Winds and waves will continue to weaken overnight.

$$

LOZ042-200800-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T0800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
1214 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EDT EARLY
THIS MORNING...

* WHAT...West winds 15 to 25 knots and waves 6 to 9 feet.

* WHERE...The nearshore waters of Lake Ontario from the Niagara 
  River to Hamlin Beach.

* WHEN...Until 4 AM EDT early this morning.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

LOZ043>045-201215-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
1214 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...West winds to 30 knots and waves 9 to 12 feet.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...Until 2 PM EDT this afternoon.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

EAJ
535 
WHUS71 KBUF 200750
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
350 AM EDT Fri Jun 20 2025

LOZ042-200900-
/O.CAN.KBUF.SC.Y.0057.000000T0000Z-250620T0800Z/
Lake Ontario nearshore waters from the Niagara River to Hamlin
Beach-
350 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY IS CANCELLED...

Winds and waves will continue to diminish this morning.

$$

LOZ043>045-201600-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
350 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...West winds to 30 knots and waves 8 to 11 feet.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...Until 2 PM EDT this afternoon.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

EAJ
038 
WHUS71 KBUF 201557
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
1157 AM EDT Fri Jun 20 2025

LOZ043>045-201800-
/O.CON.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
1157 AM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...West winds 15 to 20 knots and waves 3 to 5 feet.

* WHERE...The nearshore waters of Lake Ontario from Hamlin Beach 
  to the Saint Lawrence River.

* WHEN...Until 2 PM EDT this afternoon.

* IMPACTS...Winds and/or waves will cause hazardous conditions 
  that could capsize or damage small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
764 
WHUS71 KBUF 201751
MWWBUF

URGENT - MARINE WEATHER MESSAGE
National Weather Service Buffalo NY
151 PM EDT Fri Jun 20 2025

LOZ043>045-201900-
/O.EXP.KBUF.SC.Y.0057.000000T0000Z-250620T1800Z/
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint
Lawrence River-
151 PM EDT Fri Jun 20 2025

...SMALL CRAFT ADVISORY WILL EXPIRE AT 2 PM EDT THIS AFTERNOON...

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Buffalo, NY wrote its last area forecast discussion before this small craft advisory went out at Jun 18, 8:17 PM EDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jun 18, 8:17 PM EDT, 1 hour 43 minutes before
Area Forecast Discussion
National Weather Service Buffalo NY
817 PM EDT Wed Jun 18 2025

.SYNOPSIS...
The remnants of this past afternoon's showers and thunderstorms will
continue to wind down through mid evening. Low pressure near Chicago
will then organize as it lifts across the central Great Lakes
tonight and into southern Quebec on Thursday. In the process...it
will finish pushing its warm front across our region tonight...then
will sweep its trailing cold front across our region Thursday.
Expect additional showers and thunderstorms to accompany this system
later tonight and Thursday...with gusty winds also developing during
Thursday along and following the passage of the cold front. More
comfortable conditions will then settle into the region for Thursday
night and Friday...before heat and humidity build this weekend
through the start of the week.

&&

.NEAR TERM /THROUGH THURSDAY/...
As of this writing the remnants of this afternoon's convection
continue to push east and diminish across the Southern Tier and
interior portions of the Finger Lakes...and will continue to wind
down over the next few hours. Otherwise generally quiet conditions
with just some spotty showers should prevail until the very late
evening/after midnight time frame...when the weakening remains of
the convective line currently over MI/western Ohio will approach and
could clip portions of far western New York as we push into the
overnight hours. Otherwise expect a warm and humid night with lows
mostly between 65 and 70.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY/...
Gusty winds are expected across the Niagara Frontier Thursday
morning with a 998mb surface low to our northwest traversing across
southern Ontario. 850mb winds will be above the climatological 99th
percentile for mid-June, around 45 kt. Low-level CAA behind the
front will support vertical momentum transport enabling winds
gusting 40-50 mph. Latest NBM has been slowly trending upward with
probability of wind gusts exceeding 41 kt still low (15-25%).
Decided to hold off on any headlines for portions of the Niagara
Frontier east towards Rochester, but upcoming shifts will continue
to monitor the potential need for an advisory.

With the cold front still moving through the area, showers and
thunderstorms look to develop midday across the Southern Tier
through the Finger Lakes region where MLCAPE will be marginal (~500
J/kg), but forcing will be enough to support development. Shear and
instability profiles will be better for development of organized
convection farther east, especially in north-central NY east of Lake
Ontario. Strong downburst winds and heavy rainfall will be the main
hazards once again. By late Thursday afternoon into the evening, the
500mb trough axis will be passing overhead with any storms
associated from the surface cold front well off to the east of the
CWA, but a few lingering showers may persist.

As height rises begin across the central CONUS, a few shortwave
disturbances still appear to pass in the flow before temperatures
warm up across western NY late in the weekend. The first of these
disturbances will pass Friday afternoon into the evening with
showers developing under northwest flow aloft.

&&

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
...Dangerous Heat Sunday Through Tuesday...

A strong ridge will build into the eastern half of the CONUS during
the period. This will lead to increasing heat and humidity through
the weekend and into the first half of next week. While the ridge
and associated sfc high will provide dry weather for a large chunk
of the period, there will be the potential for showers and
thunderstorms early on in the period from Saturday afternoon into
the first part of Sunday morning. A ridge-runner complex of
thunderstorms within a northwest flow will cross a portion of the
area during this time. Confidence in the exact track/location is low
still among guidance with a variety of solutions still, but the main
focus is from Rochester and points east, including far enough north
to miss most of the North Country as well.

500 hPa heights building to around 596dm will support hot and humid
conditions. Afternoon high temperatures will reach the mid 80s to
mid 90s for Sunday through Tuesday. Some upper 90s will be possible
for the warmer interior lower elevations on Monday and Tuesday. Heat
index values in the mid 90s to around 100 degrees will also be
possible for Sunday through Tuesday in some locations.

Shower potential will increase for late Tuesday into Wednesday as
the next system approaches from the northwest, but guidance is still
uncertain on this potential. Wednesday also looks a bit cooler, but
above normal. Temperatures for Wednesday are also still uncertain
somewhat as well and dependent on the potential for a cold front to
move through the region.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
As of this writing the remnants of this afternoon's convection
continue to push east and diminish across the Southern Tier and
interior portions of the Finger Lakes...and will continue to wind
down over the next few hours. Otherwise generally quiet conditions
with just some spotty showers should prevail until sometime in
the 03z-06z time frame...when the weakening remains of the
convective line currently over MI/western Ohio will approach and
could clip KJHW/KBUF/KIAG. Expect general VFR conditions to
predominate tonight...with restrictions possible within any
convection and in any lower stratus/fog that forms in areas that
received heavy rain today.

On Thursday...low pressure lifting from the central Great Lakes to
southern Quebec will sweep a trailing cold front across our
region...along with another round of showers/thunderstorms and
possible associated restrictions from interior sections of the
southern Tier northeastward across portions of the Finger Lakes and
North Country. Otherwise the cold frontal passage will usher in a
period of gusty southwest winds with gusts up to 40 knots expected
from the Niagara Frontier east to the KROC area during the late
morning and afternoon...with a mix of MVFR/VFR ceilings prevailing.

Outlook...

Thursday Night...Generally VFR/MVFR...with showers and thunderstorms
across the North Country ending early. Localized IFR possible across
the Southern Tier and interior portions of the North Country
overnight.

Friday...Mainly VFR. A chance of showers and thunderstorms, mainly
east of KROC.

Saturday...Mainly VFR. Increasing chances for showers and
thunderstorms.

Sunday and Monday...Mainly VFR.

&&

.MARINE...
Tonight a wave of deepening surface low pressure on this stalled
front, advancing from the Ohio Valley to northwest of the Lower
Great Lakes will bring an increase in the southwest winds late
tonight and into Thursday morning. Sustained southwest winds well
over 15 knots will bring likely small craft advisories to the Lower
Great Lakes Thursday.

These winds will veer to westerly and then northwesterly tomorrow
night behind the cold front, with ample speed to support waves of 4
feet or great on Lake Ontario deep into Thursday night.

&&

.BUF WATCHES/WARNINGS/ADVISORIES...
NY...None.
MARINE...None.

&&

SYNOPSIS...JJR
NEAR TERM...Brothers/JJR
SHORT TERM...Brothers
LONG TERM...SW
AVIATION...Brothers/JJR
MARINE...Thomas
Hazardous weather outlook, Jun 18, 5:13 AM EDT, 16 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Buffalo NY
513 AM EDT Wed Jun 18 2025

NYZ008-011>014-020-021-190915-
Lewis-Genesee-Wyoming-Livingston-Ontario-Cattaraugus-Allegany-
513 AM EDT Wed Jun 18 2025

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...Today and tonight.

Showers and thunderstorms today could bring heavy downpours of rain
producing poor drainage ponding of water.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A strong cold front will cross the region on Thursday, with isolated
to scattered severe thunderstorms possible with damaging winds the
main threat.

Additionally...there is increasing confidence of elevated heat and
humidity levels beginning Sunday and lasting through at least the
middle part of next week. Heat index values are anticipated to climb
well into the 90s and possibly even touch triple digits in some
spots. Please continue to monitor the forecast for updates on this
potential.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

LEZ020-040-041-LOZ030-042>045-062>065-SLZ022-024-190915-
Upper Niagara River and Buffalo Harbor-
Lake Erie nearshore waters from Ripley to Dunkirk-
Lake Erie nearshore waters from Dunkirk to Buffalo-
Lower Niagara River-
Lake Ontario nearshore waters from the Niagara River to Hamlin Beach-
Lake Ontario nearshore waters from Hamlin Beach to Sodus Bay-
Lake Ontario nearshore waters from Sodus Bay to Mexico Bay-
Lake Ontario nearshore waters from Mexico Bay to the Saint Lawrence
River-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence River-
Saint Lawrence River from Cape Vincent to Ogdensburg-
Saint Lawrence River from Ogdensburg to Saint Regis-
513 AM EDT Wed Jun 18 2025

This Hazardous Weather Outlook is for the New York waters of Lake
Erie, Lake Ontario, and the Saint Lawrence River.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a marginal risk for strong to severe thunderstorms Thursday,
with the main threat damaging wind gusts.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

NYZ001>007-010-019-085-190915-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Jefferson-
Northern Erie-Chautauqua-Southern Erie-
513 AM EDT Wed Jun 18 2025

This Hazardous Weather Outlook is for portions of western and north
central New York.

.DAY ONE...Today and tonight.

Showers and thunderstorms today could bring heavy downpours of rain
producing poor drainage ponding of water.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Strengthening southwest winds late tonight and Thursday will bring
increasing wave heights producing an elevated risk for rip currents.

A strong cold front will cross the region on Thursday, with isolated
to scattered severe thunderstorms possible with damaging winds the
main threat.

Additionally...there is increasing confidence of elevated heat and
humidity levels beginning Sunday and lasting through at least the
middle part of next week. Heat index values are anticipated to climb
well into the 90s and possibly even touch triple digits in some
spots. Please continue to monitor the forecast for updates on this
potential.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

This product, along with other watches, warnings, advisories, and
statements issued by the National Weather Service office in Buffalo
can be found on the internet at http://www.weather.gov/buf

In the hours before

Local storm report, Jun 18, 4:15 PM EDT, 5 hours 45 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
415 PM EDT Wed Jun 18 2025

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

0355 PM     Flash Flood      3 SSE Gates-North Gates 43.13N 77.67W
06/18/2025                   Monroe             NY   Law Enforcement

            Brooks Ave., road closed due to flooding.

&&
Local storm report, Jun 18, 4:42 PM EDT, 5 hours 18 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
442 PM EDT Wed Jun 18 2025

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

0345 PM     Flash Flood      1 S Canandaigua         42.88N 77.28W
06/18/2025                   Ontario            NY   911 Call Center

            RT5/RT20 closed due to flooding in downtown
            Canandaigua.

&&
Local storm report, Jun 18, 4:45 PM EDT, 5 hours 15 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
445 PM EDT Wed Jun 18 2025

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

0336 PM     Flash Flood      Canandaigua             42.89N 77.28W
06/18/2025                   Ontario            NY   911 Call Center

            NY332/RT21 closed due to flooding in
            Canandaigua.

&&
Local storm report, Jun 18, 5:28 PM EDT, 4 hours 32 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
528 PM EDT Wed Jun 18 2025

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

0527 PM     Flash Flood      2 WSW Henrietta         43.05N 77.65W
06/18/2025                   Monroe             NY   Broadcast Media

            I-90 at exit 46 flooded.

&&
Local storm report, Jun 18, 7:40 PM EDT, 2 hours 20 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
740 PM EDT Wed Jun 18 2025

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

0445 PM     Flash Flood      4 SE Marion             43.11N 77.13W
06/18/2025                   Wayne              NY   911 Call Center

            Several roads flooded and basements around
            the area.

&&
Local storm report, Jun 18, 7:49 PM EDT, 2 hours 11 minutes before
Preliminary Local Storm Report
National Weather Service Buffalo NY
749 PM EDT Wed Jun 18 2025

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

0458 PM     Flash Flood      2 ESE Rush              42.99N 77.60W
06/18/2025                   Monroe             NY   Public

            RT251 closed due to water over the roadway.

&&

The office that day

Everything else NWS Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 11:10 PM EDTAreal Flood WarningBUFMonroe47 hr
Jun 18, 11:48 PM EDTSpecial Marine WarningBUF57 min
Jun 19, 3:23 AM EDTWind AdvisoryBUFChautauqua, Erie, Genesee, Monroe, Niagara, Orleans17 hr
Jun 19, 3:53 AM EDTBeach Hazards StatementBUFCayuga, Chautauqua, Erie, Jefferson, Monroe, Niagara and 3 more34 hr

Nearby

Small Craft Advisories in New York, 2025Every small craft advisory in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.