Alert archive / New York / Heat Advisories in 2021

Heat Advisory 1, NWS Buffalo, NY

June 26, 20219 counties in New York

NWS Buffalo, NY issued this heat advisory at Jun 26, 2021, 1:36 PM EDT for 9 counties in New York. It took effect at Jun 27, 2021, 11:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 26, 2021, 1:36 PM EDT (17:36 UTC)
In effect from
Jun 27, 2021, 11:00 AM EDT
Expired
Jun 27, 2021, 8:00 PM EDT
In force
9 hr
Issued by
NWS Buffalo, NY

Counties Cayuga County, NY, Genesee County, NY, Livingston County, NY, Monroe County, NY, Niagara County, NY, Ontario County, NY, Orleans County, NY, Oswego County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 101 km from the middle of the area, began a volume at 17:40 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.6 hours before the alert went out and 99 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2021-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2021-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 271 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

403 
WWUS71 KBUF 261736
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
136 PM EDT Sat Jun 26 2021

NYZ003>006-011-013-014-270145-
/O.NEW.KBUF.HT.Y.0001.210627T1500Z-210628T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-Genesee-Livingston-Ontario-
Including the cities of Rochester, Newark, Fair Haven, Oswego, 
Batavia, Geneseo, and Canandaigua
136 PM EDT Sat Jun 26 2021

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Monroe, Wayne, Northern Cayuga, Oswego, Genesee, 
  Livingston, and Ontario counties.

* WHEN...From 11 AM to 8 PM EDT Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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.

&&

$$
5 follow-up statements
800 
WWUS71 KBUF 270020
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
820 PM EDT Sat Jun 26 2021

NYZ003>006-011-013-014-270900-
/O.CON.KBUF.HT.Y.0001.210627T1500Z-210628T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-Genesee-Livingston-Ontario-
Including the cities of Rochester, Newark, Fair Haven, Oswego, 
Batavia, Geneseo, and Canandaigua
820 PM EDT Sat Jun 26 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT
SUNDAY...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Monroe, Wayne, Northern Cayuga, Oswego, Genesee, 
  Livingston, and Ontario counties.

* WHEN...From 11 AM to 8 PM EDT Sunday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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.

&&

$$
JLA
134 
WWUS71 KBUF 270820
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
420 AM EDT Sun Jun 27 2021

NYZ003>006-011-013-014-271630-
/O.CON.KBUF.HT.Y.0001.210627T1500Z-210628T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-Genesee-Livingston-Ontario-
Including the cities of Rochester, Newark, Fair Haven, Oswego, 
Batavia, Geneseo, and Canandaigua
420 AM EDT Sun Jun 27 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM EDT THIS EVENING...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Monroe, Wayne, Northern Cayuga, Oswego, Genesee, 
  Livingston, and Ontario counties.

* WHEN...From 11 AM this morning to 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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
450 
WWUS71 KBUF 271233
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
833 AM EDT Sun Jun 27 2021

NYZ001-002-272045-
/O.EXA.KBUF.HT.Y.0001.210627T1500Z-210628T0000Z/
Niagara-Orleans-
Including the cities of Niagara Falls and Medina
833 AM EDT Sun Jun 27 2021

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Niagara and Orleans counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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.

&&

$$

NYZ003>006-011-013-014-272045-
/O.CON.KBUF.HT.Y.0001.210627T1500Z-210628T0000Z/
Monroe-Wayne-Northern Cayuga-Oswego-Genesee-Livingston-Ontario-
Including the cities of Rochester, Newark, Fair Haven, Oswego, 
Batavia, Geneseo, and Canandaigua
833 AM EDT Sun Jun 27 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values of 95 to 99 degrees expected.

* WHERE...Monroe, Wayne, Northern Cayuga, Oswego, Genesee, 
  Livingston, and Ontario counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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.

&&

$$
417 
WWUS71 KBUF 271813
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
213 PM EDT Sun Jun 27 2021

NYZ001>006-011-013-014-280000-
/O.CON.KBUF.HT.Y.0001.000000T0000Z-210628T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Genesee-
Livingston-Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Batavia, Geneseo, and Canandaigua
213 PM EDT Sun Jun 27 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values of 95 to 99 degrees expected.

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

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  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.

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.

&&

$$
036 
WWUS71 KBUF 272337
NPWBUF

URGENT - WEATHER MESSAGE
National Weather Service Buffalo NY
737 PM EDT Sun Jun 27 2021

NYZ001>006-011-013-014-280045-
/O.EXP.KBUF.HT.Y.0001.000000T0000Z-210628T0000Z/
Niagara-Orleans-Monroe-Wayne-Northern Cayuga-Oswego-Genesee-
Livingston-Ontario-
Including the cities of Niagara Falls, Medina, Rochester, Newark,
Fair Haven, Oswego, Batavia, Geneseo, and Canandaigua
737 PM EDT Sun Jun 27 2021

...HEAT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

Temperatures will slowly fall this evening, but only to the low 
to mid 70s overnight. 

$$

Nearby

Heat Advisories in New York, 2021Every heat advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.