Alert archive / Massachusetts / Heat Advisories in 2018

Heat Advisory 2, NWS Boston/Norton, MA

June 30, 20189 counties in Massachusetts; 5 counties in Rhode Island; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this heat advisory at Jun 30, 2018, 4:16 PM EDT for 9 counties in Massachusetts; 5 counties in Rhode Island; Northeastern Connecticut Planning Region, Connecticut. It took effect at Jul 1, 2018, 10:00 AM EDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jun 30, 2018, 4:16 PM EDT (20:16 UTC)
In effect from
Jul 1, 2018, 10:00 AM EDT
Expired
Jul 1, 2018, 8:00 PM EDT
In force
10 hr
Issued by
NWS Boston/Norton, MA

Counties Northeastern Connecticut Planning Region, CT, Bristol County, MA, Essex County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Middlesex County, MA, Norfolk County, MA, Plymouth County, MA, Worcester County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 41 km from the middle of the area, began a volume at 20:15 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

Chatham, MA (KCHH), launched 12:00Z, 8.3 hours before the alert went out and 143 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, Chatham, MA at 12:00Z on 2018-06-30Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 2018-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
1363 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

939 
WWUS71 KBOX 302016
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
416 PM EDT Sat Jun 30 2018

CTZ002-MAZ003-010-011-010430-
/O.NEW.KBOX.EH.W.0001.180701T1400Z-180701T2300Z/
/O.EXT.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Hartford CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Greenfield, 
Orange, Amherst, Northampton, and Springfield
416 PM EDT Sat Jun 30 2018

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 7 PM EDT
SUNDAY...
...EXCESSIVE HEAT WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

The National Weather Service in Boston/Norton has issued an
Excessive Heat Warning, which is in effect from 10 AM to 7 PM EDT
Sunday.

* Location...Western and Central Massachusetts, and north 
  central and northeast Connecticut.

* Heat Index Values...Ranging from 100 to 108 on Sunday, due to 
  temperatures in the mid to upper 90s, and dewpoints in the lower
  to mid 70s.

* Timing...During peak heating Sunday and Monday afternoons.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine, 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CTZ003-004-MAZ002-004-008-009-012-010430-
/O.NEW.KBOX.HT.Y.0002.180701T1400Z-180701T2300Z/
/O.EXT.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Tolland CT-Windham CT-Western Franklin MA-Northern Worcester MA-
Western Hampshire MA-Western Hampden MA-Southern Worcester MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Charlemont, Barre, Fitchburg, Chesterfield, Blandford, Milford, 
and Worcester
416 PM EDT Sat Jun 30 2018

...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM EDT SUNDAY...
...EXCESSIVE HEAT WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 7 PM EDT Sunday.

* Location...Western and Central Massachusetts, and north 
  central and northeast Connecticut.

* Heat Index Values...Ranging from 100 to 104 on Sunday, due to
  temperatures in the lower 90s and dewpoints in the lower 70s.

* Timing...During peak heating Sunday and Monday afternoons.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ005-006-013-014-017-018-020-021-026-RIZ001>007-010430-
/O.NEW.KBOX.HT.Y.0002.180701T1400Z-180701T2300Z/
Central Middlesex MA-Western Essex MA-Western Norfolk MA-
Southeast Middlesex MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Including the cities of Framingham, Lowell, Lawrence, Foxborough,
Norwood, Cambridge, Taunton, Brockton, Fall River, New Bedford, 
Mattapoisett, Ayer, Foster, Smithfield, Providence, Coventry, 
West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, 
Narragansett, Westerly, and Newport
416 PM EDT Sat Jun 30 2018

...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM EDT SUNDAY...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 7 PM EDT Sunday.

* Location...Across the east slopes of the Berkshires, as well as
  northeast Connecticut, all of Rhode Island except Block Island
  and most of Massachusetts east of the Connecticut River Valley
  except the immediate east coast.

* Heat Index Values...Up to 104 due to temperatures in the upper 
  80s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours on Sunday. 

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when possible
and drink plenty of water.

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.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
4 follow-up statements
614 
WWUS71 KBOX 010210
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
1010 PM EDT Sat Jun 30 2018

CTZ002-MAZ003-010-011-011015-
/O.CON.KBOX.EH.W.0001.180701T1400Z-180701T2300Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Hartford CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Greenfield, 
Orange, Amherst, Northampton, and Springfield
1010 PM EDT Sat Jun 30 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM
EDT SUNDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...The Connecticut River Valley of Massachusetts and
  Connecticut.

* Heat Index Values...Ranging from 100 to 108 on Sunday, due to 
  temperatures in the mid to upper 90s, and dewpoints in the lower
  to mid 70s.

* Timing...During peak heating Sunday and Monday afternoons.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine, 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CTZ003-004-MAZ002-004-008-009-012-011015-
/O.CON.KBOX.HT.Y.0002.180701T1400Z-180701T2300Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Tolland CT-Windham CT-Western Franklin MA-Northern Worcester MA-
Western Hampshire MA-Western Hampden MA-Southern Worcester MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Charlemont, Barre, Fitchburg, Chesterfield, Blandford, Milford, 
and Worcester
1010 PM EDT Sat Jun 30 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EDT
SUNDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...Much of Western and Central Massachusetts, and north
  central and northeast Connecticut.

* Heat Index Values...Ranging from 100 to 104 on Sunday, due to
  temperatures in the lower 90s and dewpoints in the lower 70s.

* Timing...During peak heating Sunday and Monday afternoons.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and 
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ005-006-013-014-017-018-020-021-026-RIZ001>007-011015-
/O.CON.KBOX.HT.Y.0002.180701T1400Z-180701T2300Z/
Central Middlesex MA-Western Essex MA-Western Norfolk MA-
Southeast Middlesex MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Including the cities of Framingham, Lowell, Lawrence, Foxborough,
Norwood, Cambridge, Taunton, Brockton, Fall River, New Bedford, 
Mattapoisett, Ayer, Foster, Smithfield, Providence, Coventry, 
West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, 
Narragansett, Westerly, and Newport
1010 PM EDT Sat Jun 30 2018

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM EDT
SUNDAY...

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Ranging from 100 to 104 on Sunday, due to
  temperatures in the low to mid 90s and dewpoints in the lower 
  70s.

* Timing...During the peak heating hours on Sunday.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and 
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
028 
WWUS71 KBOX 010746
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
346 AM EDT Sun Jul 1 2018

CTZ002-MAZ003-010-011-011600-
/O.EXT.KBOX.EH.W.0001.180701T1400Z-180702T0000Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Hartford CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Greenfield, 
Orange, Amherst, Northampton, and Springfield
346 AM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM THIS MORNING
TO 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...The Connecticut River Valley of Massachusetts and 
  Connecticut.

* Heat Index Values...Ranging from 104 to 108 due to temperatures
  of 95 to 100, and dewpoints in the lower 70s.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine,
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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CTZ003-004-MAZ002-004-008-009-012-011600-
/O.EXT.KBOX.HT.Y.0002.180701T1400Z-180702T0000Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Tolland CT-Windham CT-Western Franklin MA-Northern Worcester MA-
Western Hampshire MA-Western Hampden MA-Southern Worcester MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Charlemont, Barre, Fitchburg, Chesterfield, Blandford, Milford, 
and Worcester
346 AM EDT Sun Jul 1 2018

...HEAT ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...Much of Western and Central Massachusetts, and 
  north central and northeast Connecticut.

* Heat Index Values...Ranging from 100 to 104 due to temperatures
  in the middle 90s, and dewpoints around 70.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room,
stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ005-006-013-014-017-018-020-021-026-RIZ001>007-011600-
/O.EXT.KBOX.HT.Y.0002.180701T1400Z-180702T0000Z/
Central Middlesex MA-Western Essex MA-Western Norfolk MA-
Southeast Middlesex MA-Northern Bristol MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Including the cities of Framingham, Lowell, Lawrence, Foxborough,
Norwood, Cambridge, Taunton, Brockton, Fall River, New Bedford, 
Mattapoisett, Ayer, Foster, Smithfield, Providence, Coventry, 
West Greenwich, East Greenwich, Warwick, West Warwick, Bristol, 
Narragansett, Westerly, and Newport
346 AM EDT Sun Jul 1 2018

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

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Ranging from 100 to 104 due to temperatures
  in the low to mid 90s and dewpoints around 70. 

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room,
stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
586 
WWUS71 KBOX 011701
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
101 PM EDT Sun Jul 1 2018

CTZ003-004-MAZ004-012-020115-
/O.UPG.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
/O.EXA.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Tolland CT-Windham CT-Northern Worcester MA-Southern Worcester MA-
Including the cities of Union, Vernon, Putnam, Willimantic, 
Barre, Fitchburg, Milford, and Worcester
101 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

The National Weather Service in Boston/Norton has issued an
Excessive Heat Warning, which is in effect until 8 PM EDT this
evening. The Heat Advisory is no longer in effect.

* Location...Much of Western and Central Massachusetts, and 
  north central and northeast Connecticut.

* Heat Index Values...Up to 107 due to temperatures in the upper
  80s and lower 90s and dewpoints in the 70s.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine, 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a dangerous situation in
which heat illnesses are possible. Drink plenty of fluids, stay
in an air-conditioned room, stay out of the sunshine, and check
up on relatives and neighbors.

&&

$$

MAZ005-013-017-026-RIZ001>003-020000-
/O.UPG.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
/O.EXA.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
Central Middlesex MA-Western Norfolk MA-Northern Bristol MA-
Northern Middlesex MA-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-
Including the cities of Framingham, Lowell, Foxborough, Norwood, 
Taunton, Ayer, Foster, Smithfield, Providence, Coventry, 
and West Greenwich
101 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...

The National Weather Service in Boston/Norton has issued an
Excessive Heat Warning, which is in effect until 8 PM EDT this
evening. The Heat Advisory is no longer in effect.

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 106 due to temperatures in the lower 
  90s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine, 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CTZ002-MAZ003-010-011-020115-
/O.CON.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Hartford CT-Eastern Franklin MA-Eastern Hampshire MA-
Eastern Hampden MA-
Including the cities of Hartford, Windsor Locks, Greenfield, 
Orange, Amherst, Northampton, and Springfield
101 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...The Connecticut River Valley of Massachusetts and 
  Connecticut.

* Heat Index Values...Up to 110 due to temperatures in the mid 
  80s, and dewpoints around 70.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine,
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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

MAZ002-008-009-020115-
/O.CON.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
/O.CON.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Including the cities of Charlemont, Chesterfield, and Blandford
101 PM EDT Sun Jul 1 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY EVENING...

* Location...Much of Western and Central Massachusetts, and 
  north central and northeast Connecticut.

* Heat Index Values...Up to 104 due to temperatures in the lower 
  80s, and dewpoints around 70.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room,
stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ006-014-018-020-021-RIZ004>007-020000-
/O.CON.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
Western Essex MA-Southeast Middlesex MA-Western Plymouth MA-
Southern Bristol MA-Southern Plymouth MA-Eastern Kent RI-
Bristol RI-Washington RI-Newport RI-
Including the cities of Lawrence, Cambridge, Brockton, 
Fall River, New Bedford, Mattapoisett, East Greenwich, Warwick, 
West Warwick, Bristol, Narragansett, Westerly, and Newport
101 PM EDT Sun Jul 1 2018

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

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 104 due to temperatures in the upper 
  80s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room,
stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston
162 
WWUS71 KBOX 011930
NPWBOX

URGENT - WEATHER MESSAGE
National Weather Service Boston/Norton MA
330 PM EDT Sun Jul 1 2018

CTZ002>004-MAZ003-004-010>012-020330-
/O.UPG.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
/O.NEW.KBOX.HT.Y.0003.180702T1400Z-180703T0000Z/
/O.CON.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
Hartford CT-Tolland CT-Windham CT-Eastern Franklin MA-
Northern Worcester MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-
Including the cities of Hartford, Windsor Locks, Union, Vernon, 
Putnam, Willimantic, Greenfield, Orange, Barre, Fitchburg, 
Amherst, Northampton, Springfield, Milford, and Worcester
330 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 8 PM EDT Monday. The
Excessive Heat Watch is no longer in effect.

* Location...The Connecticut River Valley of Massachusetts and 
  Connecticut.

* Heat Index Values...Up to 109 due to temperatures in the mid 
  90s, and dewpoints in the lower 70s.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine, 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ005-013-017-026-RIZ001-003-020330-
/O.NEW.KBOX.HT.Y.0003.180702T1400Z-180703T0000Z/
/O.CON.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
Central Middlesex MA-Western Norfolk MA-Northern Bristol MA-
Northern Middlesex MA-Northwest Providence RI-Western Kent RI-
Including the cities of Framingham, Lowell, Foxborough, Norwood, 
Taunton, Ayer, Foster, Smithfield, Coventry, and West Greenwich
330 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 8 PM EDT Monday.

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 106 due to temperatures in the lower 
  90s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

$$

RIZ002-020000-
/O.CON.KBOX.EH.W.0001.000000T0000Z-180702T0000Z/
Southeast Providence RI-
Including the city of Providence
330 PM EDT Sun Jul 1 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 106 due to temperatures in the lower 
  90s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to create a dangerous
situation in which heat illnesses are likely. Drink plenty of
fluids, stay in an air-conditioned room, stay out of the
sunshine,
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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

MAZ002-008-009-020330-
/O.UPG.KBOX.EH.A.0001.180702T1400Z-180702T2300Z/
/O.NEW.KBOX.HT.Y.0003.180702T1400Z-180703T0000Z/
/O.CON.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
Western Franklin MA-Western Hampshire MA-Western Hampden MA-
Including the cities of Charlemont, Chesterfield, and Blandford
330 PM EDT Sun Jul 1 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 8 PM EDT Monday. The
Excessive Heat Watch is no longer in effect.

* Location...Much of Western and Central Massachusetts, and 
  north central and northeast Connecticut.

* Heat Index Values...Up to 105 due to temperatures in the lower
  90s, and dewpoints in the lower 70s.

* Timing...During peak heating today and Monday afternoon.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room, stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

MAZ018-020330-
/O.NEW.KBOX.HT.Y.0003.180702T1400Z-180703T0000Z/
/O.CON.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
Western Plymouth MA-
Including the city of Brockton
330 PM EDT Sun Jul 1 2018

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM EDT MONDAY...

The National Weather Service in Boston/Norton has issued a Heat
Advisory, which is in effect from 10 AM to 8 PM EDT Monday.

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 103 due to temperatures in the lower 
  90s, and dewpoints around 70.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

$$

MAZ006-014-020-021-RIZ004>007-020000-
/O.CON.KBOX.HT.Y.0002.000000T0000Z-180702T0000Z/
Western Essex MA-Southeast Middlesex MA-Southern Bristol MA-
Southern Plymouth MA-Eastern Kent RI-Bristol RI-Washington RI-
Newport RI-
Including the cities of Lawrence, Cambridge, Fall River, 
New Bedford, Mattapoisett, East Greenwich, Warwick, West Warwick,
Bristol, Narragansett, Westerly, and Newport
330 PM EDT Sun Jul 1 2018

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

* Location...Much of Rhode Island and Eastern Massachusetts.

* Heat Index Values...Up to 104 due to temperatures in the upper
  90s, and dewpoints in the lower 70s.

* Timing...During the peak heating hours today.

* Impacts...Heat indices of these values could lead to heat 
  illnesses particularly to those most vulnerable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory means that a period of hot temperatures is
expected. The combination of hot temperatures and high humidity
will combine to create a situation in which heat illnesses are
possible. Drink plenty of fluids, stay in an air-conditioned
room,
stay out of the sunshine, and check up on relatives and
neighbors.

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 light weight and loose fitting clothing when
possible and drink plenty of water.

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.

&&

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

What forecasters said that day

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

NWS Boston/Norton, MA wrote its last area forecast discussion before this heat advisory went out at Jun 30, 4:08 PM EDT, 8 minutes earlier.

Area forecast discussion, Jun 30, 4:08 PM EDT, 8 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
408 PM EDT Sat Jun 30 2018

.SYNOPSIS...
High pressure along the eastern seaboard will circulate hot and
humid conditions into the region this weekend and likely continuing
into much of next week, featuring highs in the 90s and lows only 65-
70. The coastline will not be as hot thanks to local sea breezes.
Heat and humidity continues through the week. Dry the first half
while a chance of showers and thunderstorms the second half, relief
is possible by the end of the week into the following weekend.

&&

.NEAR TERM /UNTIL 6 AM SUNDAY MORNING/...
High pressure remains in control of our weather tonight. Expect
rain-free weather and high humidity with min temps 70-75 and dew
points climbing to 65-70. Winds should diminish a little, which
may allow a few areas of fog to develop overnight.

Convection expected to fire near the Ontario/Quebec border late
this afternoon is expected to move over Northern New England
this evening and tonight. With high pressure shifting east, and
based on thickness difluence patterns, we would expect most of
this to remain over Northern New England and possibly sweep over
the Gulf of Maine. Guidance brings favorable conditions rather
close to Northeast Mass for a couple of hours around midnight,
and the SPC HREF Ensemble shows a chance of 40 dbZ radar echoes
crossing into our coastal waters near Essex County MA around
05Z/1 AM. So we have included a 15-20 pct chance of thunder in
Essex County MA. It is possible it could make a quicker turn and
cross more parts of our area at that time, but we will stay
closer to guidance for now.

&&

.SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/...

Sunday...

A hot and humid day. Mixing to 800 mb and temps 17-18C equiv to
21-23C at 850 mb. Will forecast max temps of 95-100F west of
Worcester.

Models continue to show developing easterly winds following the
passage of the convection overnight. This will hold down the
heat in Eastern MA and possibly the Central Hills and RI. The
strength of the wind will determine how much and how far west
this buffering will take place. We will maintain lower 90s away
from the coast and 80s along the coast, but with less confidence
than in the rest of the Sunday forecast.

Based on forecast temps and dew points, the expected Apparent
Temps continue to show at least Heat Advisory criteria in
Western Mass...west of Worcester...and Northern CT. We will
maintain the existing Excessive Heat at this time.

&&

.LONG TERM /MONDAY THROUGH SATURDAY/...
*/ Highlights...

 - Early week hot and humid conditions
 - Midweek, shower/thunderstorm chances, continued heat
 - Relief from the heat possible by the end of next week

*/ Overview...

Not much change from previous runs in the 30/12Z guidance.
Expecting a potent and large mid level ridge to dominate much of
the flow across the USA through most of next week. It appears a
kicker shortwave may develop enough amplified flow to relieve
the heat across southern New England toward the end of next
week.

Expecting dew points to remain in the 60s, with even some lower
70s at times. This will likely result in high heat indices. Will
need to consider Heat Advisories, at a minimum, pretty much
every day this week. There is a lower threshold of 95 degrees
for consecutive days. Not closing the door on Excessive Heat
Warnings at this time, but there is a lower probability of
meeting that criterion.

Ridging aloft should keep the atmosphere mostly capped. It will
really depend upon finer details, such as dew point, to see if
this cap can be overcome. Aspects like that remain a lower
confidence forecast this far out. Increasing risk for showers
and thunderstorms Tuesday into Wednesday as a weak cold front
approaches our region from the north. It still appears the
greater risk is on Wednesday. This potential will need to be
monitored over the next few days.

&&

.AVIATION /20Z SATURDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Short Term /through Sunday Night/...High confidence.

Through this afternoon...

VFR. Light N-NW or calm winds becoming SW this afternoon. Brief
sea breezes may develop through midday, then shifting to southwest
this afternoon.

Tonight...

VFR. There is a low risk of a shower/tstm along the MA-NH border
especially from LWM to the coast. Areas of ocean fog could move
up against the coast, especially on parts of Cape Cod and
Nantucket.

Sunday...

VFR. Surface temperatures near 100 in parts of the CT River
Valley mid-late afternoon.

KBOS Terminal...High confidence in TAF. Period of east-southeast
wind during late morning and midday, but trend will be toward
shifting wind from south-southwest during the afternoon.

KBDL Terminal...High confidence in TAF.

Outlook /Monday through Thursday/...Moderate confidence.

Monday: VFR.

Monday Night: Mainly VFR, with local MVFR possible. Patchy BR.

Tuesday through Thursday: VFR. Slight chance SHRA, isolated
TSRA.

&&

.MARINE...
Forecaster Confidence Levels...

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

Short Term /through Sunday Night/...High confidence.

Through this afternoon...

Light winds shifting to south-southwest, with gusts 15-20
knots. Seas less than 4 feet.

Tonight...

Southwest winds 15 knots or less. Seas 3 feet or less.
An area of showers/tstms is possible along the northern MA
waters as it exits NH/ME and moves southeast. Areas of reduced
visibility 1 to 3 miles.

Sunday...

Winds becoming north early and then east during the day. Speeds
less than 15 knots. Seas 3 feet or less.

Outlook /Monday through Thursday/...

Monday: Winds less than 25 kt. Patchy fog.

Monday Night: Winds less than 25 kt. Patchy fog. Local
visibility 1 to 3 nm.

Tuesday: Winds less than 25 kt.

Tuesday Night through Independence Day: Winds less than 25 kt.
Slight chance of rain showers, isolated thunderstorms.

Wednesday Night: Winds less than 25 kt. Seas locally
approaching 5 ft.

Thursday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain showers.

&&

.CLIMATE...
Record Highs for June 30th through July 3rd

                      06/30       07/01       07/02      07/03

Boston, MA          95|1945     98|1963     98|1963   102|1911
Hartford, CT       100|1964    101|1964     99|1966   102|1966
Providence, RI      98|1945     97|1964     98|1941    98|2002
Worcester, MA       92|1971     94|1964     97|1901    96|1911

Record Maximum Lows for June 30th through July 3rd

                      06/30       07/01       07/02      07/03

Boston, MA          78|1872     76|1901     76|2002    80|2002
Hartford, CT        72|1948     73|1968     73|2013    74|1911
Providence, RI      74|1945     74|1968     75|1941    78|2002
Worcester, MA       72|1901     73|1901     74|1913    74|1911

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...Air Quality Alert from 11 AM to 11 PM EDT Sunday for
     CTZ002>004.
     Heat Advisory from 10 AM to 7 PM EDT Sunday for CTZ003-004.
     Excessive Heat Warning from 10 AM to 7 PM EDT Sunday for
     CTZ002.
     Excessive Heat Watch from Monday morning through Monday
     evening for CTZ002>004.
MA...Air Quality Alert from 11 AM to 11 PM EDT Sunday for
     MAZ011>013-016>024.
     Heat Advisory from 10 AM to 7 PM EDT Sunday for MAZ002-004>006-
     008-009-012>014-017-018-020-021-026.
     Excessive Heat Warning from 10 AM to 7 PM EDT Sunday for
     MAZ003-010-011.
     Excessive Heat Watch from Monday morning through Monday
     evening for MAZ002>004-008>012.
RI...Air Quality Alert from 11 AM to 11 PM EDT Sunday for
     RIZ001>008.
     Heat Advisory from 10 AM to 7 PM EDT Sunday for RIZ001>007.
MARINE...None.

&&

SYNOPSIS...Belk/EVT
NEAR TERM...EVT
SHORT TERM...EVT
LONG TERM...Belk
AVIATION...Belk/EVT
MARINE...Belk/EVT
CLIMATE...Staff
Hazardous weather outlook, Jun 30, 3:49 AM EDT, 12 hours 27 minutes before
Hazardous Weather Outlook
National Weather Service Boston/Norton MA
349 AM EDT Sat Jun 30 2018

CTZ002>004-MAZ002>004-008>012-010800-
Hartford CT-Tolland CT-Windham CT-Western Franklin MA-
Eastern Franklin MA-Northern Worcester MA-Western Hampshire MA-
Western Hampden MA-Eastern Hampshire MA-Eastern Hampden MA-
Southern Worcester MA-
349 AM EDT Sat Jun 30 2018

...EXCESSIVE HEAT WATCH FROM SUNDAY MORNING THROUGH MONDAY EVENING...

This Hazardous Weather Outlook is for northern Connecticut, central and
western Massachusetts.

.DAY ONE...Today and Tonight.

Heat and humidity will continue to build across the region. Heat
index values at or above 95 degrees are forecast throughout the CT
River Valley.

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

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Watch

..SPOTTER INFORMATION STATEMENT......

Spotter activation is not expected at this time.

MAZ005>007-013>024-026-RIZ001>008-010800-
Central Middlesex MA-Western Essex MA-Eastern Essex MA-
Western Norfolk MA-Southeast Middlesex MA-Suffolk MA-
Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA-
Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Barnstable MA-Dukes MA-Nantucket MA-Northern Middlesex MA-
Northwest Providence RI-Southeast Providence RI-Western Kent RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-Block Island RI-
349 AM EDT Sat Jun 30 2018

This Hazardous Weather Outlook is for northeastern, eastern and
southeastern Massachusetts, as well as all of Rhode Island.

.DAY ONE...Today and Tonight.

Heat and humidity will continue to build across the region. Heat
index values at or above 95 degrees are forecast throughout the
Merrimack River Valley and along the 495 and 95 corridors.

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

Heat and humidity continues through the week driving heat index values
at or above 95 degrees through at least Tuesday. Heat advisories will
likely be needed over much of New England outside the Excessive Heat
Watch and away from the south and southeast shoreline as criteria
stipulates heat index values and/or temperatures at or above 95
degrees for two or more consecutive days.

..SPOTTER INFORMATION STATEMENT......

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-010800-
Boston Harbor-Cape Cod Bay-Nantucket Sound-Vineyard Sound-
Buzzards Bay-Rhode Island Sound-Narragansett Bay-Block Island Sound-
Coastal waters east of Ipswich Bay and the Stellwagen Bank National
Marine Sanctuary-Massachusetts Bay and Ipswich Bay-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
Coastal Waters extending out to 25 nm South of Marthas Vineyard and
Nantucket-
Coastal Waters from Montauk NY to Marthas Vineyard extending out to
20 nm South of Block Island-
349 AM EDT Sat Jun 30 2018

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

..SPOTTER INFORMATION STATEMENT......

Spotter activation is not expected at this time.

For the latest updates, please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 30, 4:16 PM EDTExcessive Heat WarningBOXBristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 1 more28 hr

Nearby

Heat Advisories in Massachusetts, 2018Heat Advisories in Rhode Island, 2018Heat Advisories in Connecticut, 2018Every heat advisory in 2018

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.