Alert archive / Massachusetts / Heat Advisories in 2021
Heat Advisory 1, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this heat advisory at Jun 6, 2021, 3:29 AM EDT for 9 counties in Massachusetts; Capitol Planning Region, Connecticut. It took effect at Jun 6, 2021, 11:00 AM EDT. It was in force for 57 hr.
The area
The counties it named.
The facts
- Issued
- Jun 6, 2021, 3:29 AM EDT (07:29 UTC)
- In effect from
- Jun 6, 2021, 11:00 AM EDT
- Expired
- Jun 8, 2021, 7:41 PM EDT
- In force
- 57 hr
- Issued by
- NWS Boston/Norton, MA
Counties Capitol 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, Suffolk County, MA
The radar
The Boston radar (KBOX), 54 km from the middle of the area, began a volume at 07:32 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
Brookhaven, NY (KOKX), launched 00:00Z, 7.5 hours before the alert went out and 181 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.
- Mixed-layer CAPE
- 105 J/kg
- Mixed-layer CIN
- -159 J/kg
- Mixed-layer LCL
- 1984 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
811 WWUS71 KBOX 060729 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 329 AM EDT Sun Jun 6 2021 CTZ002-MAZ005-006-010-011-013>016-026-062100- /O.NEW.KBOX.HT.Y.0001.210606T1500Z-210608T0000Z/ Hartford CT-Central Middlesex MA-Western Essex MA- Eastern Hampshire MA-Eastern Hampden MA-Western Norfolk MA- Southeast Middlesex MA-Suffolk MA-Eastern Norfolk MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, and Ayer 329 AM EDT Sun Jun 6 2021 ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT MONDAY... * WHAT...Heat index values of 95 to 99 expected. * WHERE...In Connecticut, Hartford CT County. In Massachusetts, Central Middlesex MA, Western Essex MA, Eastern Hampshire MA, Eastern Hampden MA, Western Norfolk MA, Southeast Middlesex MA, Suffolk MA, Eastern Norfolk MA and Northern Middlesex MA Counties. * WHEN...From 11 AM this morning to 8 PM EDT Monday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
6 follow-up statements
743 WWUS71 KBOX 061956 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 356 PM EDT Sun Jun 6 2021 CTZ003-MAZ003-017-018-070900- /O.EXA.KBOX.HT.Y.0001.000000T0000Z-210608T0000Z/ Tolland CT-Eastern Franklin MA-Northern Bristol MA- Western Plymouth MA- Including the cities of Union, Vernon, Greenfield, Orange, Taunton, and Brockton 356 PM EDT Sun Jun 6 2021 ...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT MONDAY... * WHAT...Heat index values up to 96. * WHERE...In Connecticut, Tolland CT County. In Massachusetts, Eastern Franklin MA, Northern Bristol MA and Western Plymouth MA Counties. * WHEN...Until 8 PM EDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ CTZ002-MAZ005-006-010-011-013>016-026-070900- /O.CON.KBOX.HT.Y.0001.000000T0000Z-210608T0000Z/ Hartford CT-Central Middlesex MA-Western Essex MA- Eastern Hampshire MA-Eastern Hampden MA-Western Norfolk MA- Southeast Middlesex MA-Suffolk MA-Eastern Norfolk MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, and Ayer 356 PM EDT Sun Jun 6 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT MONDAY... * WHAT...Heat index values up to 97. * WHERE...In Connecticut, Hartford CT County. In Massachusetts, Western Essex MA, Southeast Middlesex MA, Central Middlesex MA, Eastern Hampden MA, Western Norfolk MA, Eastern Hampshire MA, Suffolk MA, Northern Middlesex MA and Eastern Norfolk MA Counties. * WHEN...Until 8 PM EDT Monday. * 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. && $$ For more information from the National Weather Service visit https://weather.gov/box
713 WWUS71 KBOX 070800 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 400 AM EDT Mon Jun 7 2021 CTZ002-003-MAZ003-005-006-010-011-013>018-026-072100- /O.CON.KBOX.HT.Y.0001.000000T0000Z-210608T0000Z/ Hartford CT-Tolland CT-Eastern Franklin MA-Central Middlesex MA- Western Essex MA-Eastern Hampshire MA-Eastern Hampden MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Greenfield, Orange, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, and Ayer 400 AM EDT Mon Jun 7 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values of 95 to 99. * WHERE...Portions of northern Connecticut and eastern, northeastern, southeastern and western Massachusetts. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/box
279 WWUS71 KBOX 071912 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 312 PM EDT Mon Jun 7 2021 CTZ004-MAZ007-012-019-RIZ001>004-080900- /O.NEW.KBOX.HT.Y.0002.210608T1500Z-210609T0000Z/ Windham CT-Eastern Essex MA-Southern Worcester MA- Eastern Plymouth MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Including the cities of Putnam, Willimantic, Gloucester, Milford, Worcester, Plymouth, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, and West Warwick 312 PM EDT Mon Jun 7 2021 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY... * WHAT...Heat index values up to 99 expected. * WHERE...In Connecticut, Windham CT County. In Massachusetts, Eastern Essex MA, Southern Worcester MA and Eastern Plymouth MA Counties. In Rhode Island, Northwest Providence RI, Southeast Providence RI, Western Kent RI and Eastern Kent RI Counties. * WHEN...From 11 AM to 8 PM EDT Tuesday. * 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. && $$ CTZ002-003-MAZ003-005-006-010-011-013>018-026-080900- /O.EXT.KBOX.HT.Y.0001.000000T0000Z-210609T0000Z/ Hartford CT-Tolland CT-Eastern Franklin MA-Central Middlesex MA- Western Essex MA-Eastern Hampshire MA-Eastern Hampden MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Greenfield, Orange, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, and Ayer 312 PM EDT Mon Jun 7 2021 ...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT TUESDAY... * WHAT...Heat index values up to 98. * WHERE...Portions of northern Connecticut and eastern, northeastern, southeastern and western Massachusetts. * WHEN...Until 8 PM EDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/box
770 WWUS71 KBOX 080748 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 348 AM EDT Tue Jun 8 2021 CTZ002-003-MAZ003-005-006-010-011-013>018-026-082100- /O.CON.KBOX.HT.Y.0001.000000T0000Z-210609T0000Z/ Hartford CT-Tolland CT-Eastern Franklin MA-Central Middlesex MA- Western Essex MA-Eastern Hampshire MA-Eastern Hampden MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Greenfield, Orange, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, and Ayer 348 AM EDT Tue Jun 8 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values up to 95. * WHERE...Portions of northern Connecticut and eastern, northeastern, southeastern and western Massachusetts. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot and humid conditions 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. && $$ CTZ004-MAZ007-012-019-RIZ001>004-082100- /O.CON.KBOX.HT.Y.0002.210608T1500Z-210609T0000Z/ Windham CT-Eastern Essex MA-Southern Worcester MA- Eastern Plymouth MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Including the cities of Putnam, Willimantic, Gloucester, Milford, Worcester, Plymouth, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, and West Warwick 348 AM EDT Tue Jun 8 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING... * WHAT...Heat index values up to 96 expected. * WHERE...In Connecticut, Windham County. In Massachusetts, Eastern Plymouth, Eastern Essex and Southern Worcester Counties. In Rhode Island, Providence and Kent Counties. * WHEN...From 11 AM this morning to 8 PM EDT this evening. * IMPACTS...Hot and humid conditions may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/box
831 WWUS71 KBOX 081928 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 328 PM EDT Tue Jun 8 2021 CTZ002-003-MAZ003-005-006-010-011-013>018-026-090000- /O.CON.KBOX.HT.Y.0001.000000T0000Z-210609T0000Z/ Hartford CT-Tolland CT-Eastern Franklin MA-Central Middlesex MA- Western Essex MA-Eastern Hampshire MA-Eastern Hampden MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Greenfield, Orange, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, and Ayer 328 PM EDT Tue Jun 8 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values up to 99. * WHERE...Portions of northern Connecticut and eastern, northeastern, southeastern and western Massachusetts. * 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. && $$ CTZ004-MAZ007-012-019-RIZ001>004-090000- /O.CON.KBOX.HT.Y.0002.000000T0000Z-210609T0000Z/ Windham CT-Eastern Essex MA-Southern Worcester MA- Eastern Plymouth MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Including the cities of Putnam, Willimantic, Gloucester, Milford, Worcester, Plymouth, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, and West Warwick 328 PM EDT Tue Jun 8 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values up to 100. * WHERE...In Connecticut, Windham CT County. In Massachusetts, Eastern Plymouth MA, Eastern Essex MA and Southern Worcester MA Counties. In Rhode Island, Southeast Providence RI, Northwest Providence RI, Eastern Kent RI and Western Kent RI Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/box
190 WWUS71 KBOX 082341 NPWBOX URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 741 PM EDT Tue Jun 8 2021 CTZ004-MAZ007-012-019-RIZ001>004-090045- /O.CAN.KBOX.HT.Y.0002.000000T0000Z-210609T0000Z/ Windham CT-Eastern Essex MA-Southern Worcester MA- Eastern Plymouth MA-Northwest Providence RI- Southeast Providence RI-Western Kent RI-Eastern Kent RI- Including the cities of Putnam, Willimantic, Gloucester, Milford, Worcester, Plymouth, Foster, Smithfield, Providence, Coventry, West Greenwich, East Greenwich, Warwick, and West Warwick 741 PM EDT Tue Jun 8 2021 ...HEAT ADVISORY IS CANCELLED... Heat Index values have dropped below Heat Advisory criteria. Therefore...the Heat Advisory has been cancelled. $$ CTZ002-003-MAZ003-005-006-010-011-013>018-026-090045- /O.CAN.KBOX.HT.Y.0001.000000T0000Z-210609T0000Z/ Hartford CT-Tolland CT-Eastern Franklin MA-Central Middlesex MA- Western Essex MA-Eastern Hampshire MA-Eastern Hampden MA- Western Norfolk MA-Southeast Middlesex MA-Suffolk MA- Eastern Norfolk MA-Northern Bristol MA-Western Plymouth MA- Northern Middlesex MA- Including the cities of Hartford, Windsor Locks, Union, Vernon, Greenfield, Orange, Framingham, Lowell, Lawrence, Amherst, Northampton, Springfield, Foxborough, Norwood, Cambridge, Boston, Quincy, Taunton, Brockton, and Ayer 741 PM EDT Tue Jun 8 2021 ...HEAT ADVISORY IS CANCELLED... Heat Index values have dropped below Heat Advisory criteria. Therefore...the Heat Advisory has been cancelled. $$ Frank For more information from the National Weather Service visit https://weather.gov/box
Nearby
Heat Advisories in Massachusetts, 2021Heat Advisories in Connecticut, 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.