Heat Advisory 2, NWS Buffalo, NY

365 
WWUS71 KBUF 300454
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
1254 AM EDT Tue Jun 30 2026

NYZ001>006-010-011-013-014-301700-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
/O.CON.KBUF.XH.A.0001.260701T1600Z-260704T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Northern Erie-
Genesee-Livingston-Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Buffalo, Batavia, Geneseo, and Canandaigua
1254 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON 
THROUGH FRIDAY EVENING...

* WHAT...For the Heat Advisory, heat index values in the upper 90s 
  expected. For the Extreme Heat Watch, dangerously hot conditions 
  with heat index values as high as 105 possible.

* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Oswego, 
  Northern Erie, Genesee, Livingston, and Ontario Counties.

* WHEN...For the Heat Advisory, from noon today to 8 PM EDT this 
  evening. For the Extreme Heat Watch, from Wednesday afternoon 
  through Friday evening.

* IMPACTS...Extreme heat and humidity will significantly increase 
  the potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities. Hot temperatures 
  and high humidity may cause heat related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ007-008-019>021-301700-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
Jefferson-Lewis-Chautauqua-Cattaraugus-Allegany-
Including the cities of Watertown, Lowville, Jamestown, Olean,
and Wellsville
1254 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...

* WHAT...Heat index values in the mid 90s expected.

* WHERE...Jefferson, Lewis, Chautauqua, Cattaraugus, and Allegany 
  Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ012-085-301700-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
Wyoming-Southern Erie-
Including the cities of Warsaw, Orchard Park, and Springville
1254 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...

* WHAT...Heat index values in the upper 90s expected.

* WHERE...Wyoming and Southern Erie Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

TMA

065 
WWUS71 KBUF 300831
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
431 AM EDT Tue Jun 30 2026

NYZ001>006-010-011-013-014-302015-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
/O.CON.KBUF.XH.A.0001.260701T1600Z-260704T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Northern Erie-
Genesee-Livingston-Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Buffalo, Batavia, Geneseo, and Canandaigua
431 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON 
THROUGH FRIDAY EVENING...

* WHAT...For the Heat Advisory, heat index values in the upper 90s 
  expected. For the Extreme Heat Watch, dangerously hot conditions 
  with heat index values as high as 105 possible.

* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Oswego, 
  Northern Erie, Genesee, Livingston, and Ontario Counties.

* WHEN...For the Heat Advisory, from noon today to 8 PM EDT this 
  evening. For the Extreme Heat Watch, from Wednesday afternoon 
  through Friday evening.

* IMPACTS...Extreme heat and humidity will significantly increase 
  the potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities. Hot temperatures 
  and high humidity may cause heat related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ007-008-019>021-302015-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
Jefferson-Lewis-Chautauqua-Cattaraugus-Allegany-
Including the cities of Watertown, Lowville, Jamestown, Olean,
and Wellsville
431 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...

* WHAT...Heat index values in the mid 90s expected.

* WHERE...Jefferson, Lewis, Chautauqua, Cattaraugus, and Allegany 
  Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ012-085-302015-
/O.CON.KBUF.HT.Y.0002.260630T1600Z-260701T0000Z/
Wyoming-Southern Erie-
Including the cities of Warsaw, Orchard Park, and Springville
431 AM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS 
EVENING...

* WHAT...Heat index values in the upper 90s expected.

* WHERE...Wyoming and Southern Erie Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

JJR

616 
WWUS71 KBUF 301639
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
1239 PM EDT Tue Jun 30 2026

NYZ001>006-013-014-010445-
/O.UPG.KBUF.XH.A.0001.260701T1600Z-260704T0000Z/
/O.NEW.KBUF.XH.W.0001.260701T1600Z-260704T0000Z/
/O.CON.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Livingston-
Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Geneseo, and Canandaigua
1239 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXTREME HEAT WARNING IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT 
FRIDAY...

* WHAT...For the Heat Advisory, heat index values as high as 100. 
  For the Extreme Heat Warning, dangerously hot conditions with heat 
  index values as high as 105 expected.

* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Oswego, 
  Livingston, and Ontario Counties.

* WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the 
  Extreme Heat Warning, from noon Wednesday to 8 PM EDT Friday.

* IMPACTS...Extreme heat and humidity will significantly increase 
  the potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities. Hot temperatures 
  and high humidity may cause heat related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ010-011-010445-
/O.UPG.KBUF.XH.A.0001.260701T1600Z-260704T0000Z/
/O.NEW.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
/O.CON.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
Northern Erie-Genesee-
Including the cities of Buffalo and Batavia
1239 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT FRIDAY...

* WHAT...For the first Heat Advisory, heat index values in the upper 
  90s. For the second Heat Advisory, heat index values as high as 
  105 expected.

* WHERE...Northern Erie and Genesee Counties.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. 
  For the second Heat Advisory, from noon Wednesday to 8 PM EDT 
  Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ007-008-010445-
/O.NEW.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
/O.CON.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
1239 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT FRIDAY...

* WHAT...For the first Heat Advisory, heat index values in the lower 
  90s. For the second Heat Advisory, heat index values as high as 
  100 expected.

* WHERE...Jefferson and Lewis Counties.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. 
  For the second Heat Advisory, from noon Wednesday to 8 PM EDT 
  Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ012-085-010445-
/O.NEW.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
/O.CON.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
Wyoming-Southern Erie-
Including the cities of Warsaw, Orchard Park, and Springville
1239 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT FRIDAY...

* WHAT...For the first Heat Advisory, heat index values in the upper 
  90s. For the second Heat Advisory, heat index values as high as 
  100 expected.

* WHERE...Wyoming and Southern Erie Counties.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. 
  For the second Heat Advisory, from noon Wednesday to 8 PM EDT 
  Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ019>021-010445-
/O.NEW.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
/O.CON.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
Chautauqua-Cattaraugus-Allegany-
Including the cities of Jamestown, Olean, and Wellsville
1239 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT FRIDAY...

* WHAT...For the first Heat Advisory, heat index values in the mid 
  90s. For the second Heat Advisory, heat index values as high as 
  100 expected.

* WHERE...The western Southern Tier.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. 
  For the second Heat Advisory, from noon Wednesday to 8 PM EDT 
  Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

EAJ

518 
WWUS71 KBUF 010012
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
812 PM EDT Tue Jun 30 2026

NYZ001>006-013-014-011215-
/O.EXP.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
/O.CON.KBUF.XH.W.0001.260701T1600Z-260704T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Livingston-
Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Geneseo, and Canandaigua
812 PM EDT Tue Jun 30 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON WEDNESDAY TO 8 
PM EDT FRIDAY...

* WHAT...Dangerously hot conditions with heat index values as high 
  as 105 expected.

* WHERE...Niagara, Orleans, Monroe, Wayne, Northern Cayuga, Oswego, 
  Livingston, and Ontario Counties.

* WHEN...From noon Wednesday to 8 PM EDT Friday.

* IMPACTS...Extreme heat and humidity will significantly increase 
  the potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ007-008-011215-
/O.EXP.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
/O.CON.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
Jefferson-Lewis-
Including the cities of Watertown and Lowville
812 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values as high as 100 expected.

* WHERE...Jefferson and Lewis Counties.

* WHEN...From noon Wednesday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ010-011-011215-
/O.EXP.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
/O.CON.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
Northern Erie-Genesee-
Including the cities of Buffalo and Batavia
812 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values as high as 105 expected.

* WHERE...Northern Erie and Genesee Counties.

* WHEN...From noon Wednesday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

NYZ012-019>021-085-011215-
/O.EXP.KBUF.HT.Y.0002.000000T0000Z-260701T0000Z/
/O.CON.KBUF.HT.Y.0003.260701T1600Z-260704T0000Z/
Wyoming-Chautauqua-Cattaraugus-Allegany-Southern Erie-
Including the cities of Warsaw, Jamestown, Olean, Wellsville,
Orchard Park, and Springville
812 PM EDT Tue Jun 30 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY TO 8 PM EDT 
FRIDAY...

* WHAT...Heat index values as high as 100 expected.

* WHERE...Southern Erie and Wyoming counties and the western 
  Southern Tier.

* WHEN...From noon Wednesday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  related illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of 
the sun, and check up on relatives and neighbors. Young children and 
pets should never be left unattended in vehicles under any 
circumstances. This is especially true during hot weather when car 
interiors can reach lethal temperatures in a matter of minutes.

Take extra precautions if you work or spend time outside. When 
possible reschedule strenuous activities to early morning or 
evening. Know the signs and symptoms of heat exhaustion and heat 
stroke. Wear lightweight and loose fitting clothing when possible. 
To reduce risk during outdoor work, the Occupational Safety and 
Health Administration recommends scheduling frequent rest breaks in 
shaded or air conditioned environments. Anyone overcome by heat 
should be moved to a cool and shaded location. Heat stroke is an 
emergency! Call 9 1 1.

&&

$$

TMA

Area Forecast Discussion
National Weather Service Buffalo NY
609 AM EDT Mon Jun 29 2026

.WHAT HAS CHANGED...
No significant changes to the forecast with this update.

&&

.KEY MESSAGES...
1) Increasing chances for showers and thunderstorms later tonight
through Tuesday.

2) Dangerous heat and humidity expected for a majority of the week,
then turning more unsettled with slowly lessening heat and humidity
for the holiday weekend.

&&

.DISCUSSION...
KEY MESSAGE 1...Increasing chances for showers and thunderstorms
later tonight through Tuesday.

In advance of building ridging that will provide us with an extended
spell of heat and humidity for a majority of the week (see Key
Message 2 below)...a warm frontal boundary will slide eastward
across the area between later tonight and Tuesday. An attendant
increase in isentropic ascent/elevated instability along with the
potential for a convectively-augmented shortwave rippling southeast
along this boundary will bring an increasing potential for at least
a few scattered showers and thunderstorms from west to east
overnight and Tuesday. With the guidance suite continuing to
struggle regarding the details of the timing/placement/coverage of
this convection have capped PoPs in the chance to low likely range
for now...with the greatest probabilities currently indicated across
the eastern Finger Lakes/North Country during Tuesday...in line with
a general multimodel consensus.

While some uncertainty persists with respect to the extent of
morning pcpn/cloud cover and consequently the amount of surface-
based instability that can develop during Tuesday...given the amount
of shear that will be in place a few stronger to severe storms
cannot be ruled out...as is captured by the Marginal Risk in SPC's
Day 2 Convective Outlook. Were these to materialize...damaging winds
and hail would be the primary risks.

KEY MESSAGE 2...Dangerous heat and humidity expected for a majority
of the week, then turning more unsettled with slowly lessening heat
and humidity for the holiday weekend.

Guidance remains in lockstep on upper level ridging building across
the eastern CONUS through Thursday...with the core of the ridge
strengthening to near 600 dm while drifting east from the Tennessee
Valley to the mid-Atlantic coastline. After that time...a series of
shortwave impulses digging southeastward across eastern Canada will
help to slowly buckle and flatten the ridge Friday through the
holiday weekend...with its core correspondingly settling
southwestward into the southern Plains/southeastern States. Under
this regime...850 mb temps will climb to around +20C by later
Tuesday afternoon...then will remain around or even a little above
+20C through at least Thursday and possibly even Friday...before
pulling back into the mid to upper teens next weekend.

At the surface...this will initially translate into highs climbing
into the mid and upper 80s today...though that's also about how warm
it will actually feel with dewpoints mostly remaining in the
tolerable upper 50s to lower 60s. Following the warm frontal
passage...heat and humidity will then build in earnest Tuesday and
especially Wednesday and Thursday...when daytime highs away from
lake influences/the higher terrain will surge into the lower to mid
90s for many areas...with a few of our normal hot spots possibly
even reaching the upper 90s. At the same time dewpoints will climb
into the lower 70s (and possibly mid 70s in a few spots by
midweek)...supporting oppressive heat indices in the upper 90s to
lower 100s (heat advisory criteria) for much of our lower elevations
each afternoon...with some locations across the Finger Lakes and
Niagara/Orleans counties possibly even seeing these briefly approach
or reach heat warning criteria (105F) Wednesday/Thursday. At this
point...the greatest confidence in meeting heat headline criteria
lies south of Lake Ontario Tuesday through Friday...with some
potential for convection and associated cloud cover to limit temps
across eastern portions of the Finger Lakes and North Country
Tuesday...and then possibly again east of Lake Ontario at points
Wednesday-Friday. Very warm and muggy nights will also offer little
relief from the heat for those without air conditioning...and will
increase the likelihood of heat-related illness for vulnerable
populations.

Aside from the warm frontal passage tonight/Tuesday and the
potential for some additional scattered convection across the North
Country (which will lie closest to the northern periphery of the
ridge) at points Wednesday-Thursday...it should be largely dry much
of the time through Thursday. Increasingly more unsettled conditions
should then return Friday through the holiday weekend as the ridge
slowly flattens and we once again become more subject to shortwave
disturbances rippling along its northern periphery...though timing/
placing any such impulses and their related convection remains
difficult at best this far in advance. This being said...the general
increase in convective potential/associated cloud cover and slowly
declining temps aloft should gradually lessen the potential for
headline-worthy heat and humidity as we push through the
weekend...though it will still likely remain very warm and humid.

&&

.AVIATION /10Z MONDAY THROUGH FRIDAY/...
Aside from some spotty IFR/MVFR valley fog across the Southern Tier
early this morning...widespread VFR conditions are expected through
this evening. An approaching warm frontal boundary will then bring a
west-to-east increase in high and mid-level cloud cover during the
second half of the upcoming night...with a low chance of showers/
thunderstorms arriving late in the night across far western New
York.

Outlook...

Tuesday...Mainly VFR with scattered showers/thunderstorms and
localized flight reductions possible...with the greatest potential
for these across the eastern Finger Lakes and North Country.

Wednesday and Thursday...Mainly VFR.

Friday...Mainly VFR. Chance of showers and thunderstorms.

&&

.MARINE...
Lingering surface high pressure will keep light to modest winds and
minimal wave action across the Lower Great Lakes today. A warm front
will then pass across the region on Tuesday, with modest to moderate
southwesterlies then following for the remainder of the week.

The warm frontal passage may also bring the potential for at least a
few showers and thunderstorms later tonight and Tuesday...some of
which could produce locally higher winds and waves.

&&

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

&&

DISCUSSION...JJR
AVIATION...JJR
MARINE...JJR

Hazardous Weather Outlook
National Weather Service Buffalo NY
124 AM EDT Mon Jun 29 2026

NYZ007-008-010>012-019>021-085-300600-
Jefferson-Lewis-Northern Erie-Genesee-Wyoming-Chautauqua-Cattaraugus-
Allegany-Southern Erie-
124 AM EDT Mon Jun 29 2026

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

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Dangerous heat and humidity is likely this week. Heat will begin
Tuesday and continue through at least Friday. Maximum heat index
values will likely reach the mid 90s to near 100 each afternoon.
Very warm and muggy nights will offer little relief from the heat.

.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>006-013-014-300600-
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Livingston-
Ontario-
124 AM EDT Mon Jun 29 2026

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

.DAY ONE...Today and tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Dangerous heat and humidity is likely much of this week. Heat will
begin Tuesday and continue through at least Friday. Maximum heat
index values will likely reach the 100 to 107 range each afternoon.
Very warm and muggy nights will offer little relief from the heat.

.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-SLZ022-024-300600-
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-
124 AM EDT Mon Jun 29 2026

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...Tuesday through Sunday.

No hazardous weather is expected at this time.

.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

JJR