Alert archive / Massachusetts / Heat Advisories in 2012

Heat Advisory 2, NWS Boston/Norton, MA

June 20, 20124 states

NWS Boston/Norton, MA issued this heat advisory at Jun 20, 2012, 4:14 PM EDT for 4 states. It took effect at Jun 21, 2012, 11:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jun 20, 2012, 4:14 PM EDT (20:14 UTC)
In effect from
Jun 21, 2012, 11:00 AM EDT
Expired
Jun 21, 2012, 7:00 PM EDT
In force
8 hr
Issued by
NWS Boston/Norton, MA

Counties Capitol Planning Region, CT, 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, Suffolk County, MA, Worcester County, MA, Cheshire County, NH, Hillsborough County, NH, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 49 km from the middle of the area, began a volume at 20:19 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, 8.2 hours before the alert went out and 151 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 2012-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 277 joules per kilogram.LCLLFCEL10008507005003002001001 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, Chatham, MA at 12:00Z on 2012-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
277 J/kg
Mixed-layer CIN
-127 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

357 
WWUS71 KBOX 202014
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
414 PM EDT WED JUN 20 2012

CTZ002>004-MAZ004>007-011>021-026-NHZ012-015-RIZ001>004-210300-
/O.NEW.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
/O.CON.KBOX.HT.Y.0001.000000T0000Z-120620T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...SPRINGFIELD...MILFORD...
WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...
TAUNTON...BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...AYER...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK
414 PM EDT WED JUN 20 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 11 AM TO 7 PM EDT THURSDAY.

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...NORTHERN CONNECTICUT...NORTHERN RHODE ISLAND...
  EASTERN MASSACHUSETTS AND HILLSBOROUGH COUNTY NEW HAMPSHIRE.

* HEAT INDEX VALUES...UP TO 105 THIS EVENING...AND AGAIN THURSDAY
  AFTERNOON.

* TIMING...UNTIL 7 PM THIS EVENING.

* IMPACTS...HEAT INDICES UP TO 105 DEGREES WILL RESULT IN
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF
  TIME OUTSIDE.

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. AVOID PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED
AREAS. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ENVIRONMENT...STAY OUT OF THE SUN...AND CHECK IN ON RELATIVES AND
NEIGHBORS.

HEAT KILLS.  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.

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.

&&

$$

MAZ002-003-008>010-NHZ011-RIZ005>007-202300-
/O.CON.KBOX.HT.Y.0001.000000T0000Z-120620T2300Z/
WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-CHESHIRE NH-BRISTOL RI-
WASHINGTON RI-NEWPORT RI-
INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE...
CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...JAFFREY...
KEENE...BRISTOL...NARRAGANSETT...WESTERLY...NEWPORT
414 PM EDT WED JUN 20 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...SOUTHERN RHODE ISLAND...WESTERN AND NORTH CENTRAL
  MASSACHUSETTS AND CHESHIRE COUNTY NEW HAMPSHIRE.

* HEAT INDEX VALUES...UP TO 103.

* TIMING...UNTIL 7 PM THIS EVENING.

* IMPACTS...HEAT INDICES UP TO 105 DEGREES WILL RESULT IN 
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF 
  TIME OUTSIDE. 

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. AVOID PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED
AREAS. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ENVIRONMENT...STAY OUT OF THE SUN...AND CHECK IN ON RELATIVES AND
NEIGHBORS.

HEAT KILLS.  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.

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.

&&

$$
5 follow-up statements
446 
WWUS71 KBOX 202258
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
658 PM EDT WED JUN 20 2012

CTZ002>004-MAZ004>007-011>021-026-NHZ012-015-RIZ001>004-210700-
/O.EXP.KBOX.HT.Y.0001.000000T0000Z-120620T2300Z/
/O.CON.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...SPRINGFIELD...MILFORD...
WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...
TAUNTON...BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...AYER...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK
658 PM EDT WED JUN 20 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...NORTHERN CONNECTICUT...NORTHERN RHODE ISLAND... 
  EASTERN MASSACHUSETTS AND HILLSBOROUGH COUNTY NEW HAMPSHIRE. 

* HEAT INDEX VALUES...UP TO 105 THURSDAY AFTERNOON.

* TIMING...FROM 11 AM THURSDAY UNTIL 7 PM THURSDAY EVENING.

* IMPACTS...HEAT INDICES UP TO 105 DEGREES WILL RESULT IN 
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF 
  TIME OUTSIDE. 

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. AVOID PROLONGED WORK IN THE SUN OR IN POORLY VENTILATED
AREAS. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED
ENVIRONMENT...STAY OUT OF THE SUN...AND CHECK IN ON RELATIVES AND
NEIGHBORS.

HEAT KILLS.  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.

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. 

&&

$$

MAZ002-003-008>010-NHZ011-RIZ005>007-210000-
/O.EXP.KBOX.HT.Y.0001.000000T0000Z-120620T2300Z/
WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-CHESHIRE NH-BRISTOL RI-
WASHINGTON RI-NEWPORT RI-
INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE...
CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...JAFFREY...
KEENE...BRISTOL...NARRAGANSETT...WESTERLY...NEWPORT
658 PM EDT WED JUN 20 2012

...HEAT ADVISORY WILL EXPIRE AT 7 PM EDT THIS EVENING...

TEMPERATURES HAVE COOLED ALLOWING FOR HEAT INDEX VALUES TO FALL
BELOW ADVISORY LEVELS.

$$

SIPPRELL
528 
WWUS71 KBOX 210329
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1129 PM EDT WED JUN 20 2012

CTZ002>004-MAZ004>007-011>021-026-NHZ012-015-RIZ001>004-211130-
/O.CON.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...SPRINGFIELD...MILFORD...
WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...
TAUNTON...BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...AYER...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK
1129 PM EDT WED JUN 20 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...SOUTHEAST NEW HAMPSHIRE...MOST OF CENTRAL AND
  EASTERN MASSACHUSETTS...AS WELLS NORTHERN CONNECTICUT AND RHODE
  ISLAND. THE ADVISORY ALSO INCLUDES A SMALL PORTION OF SOUTHWEST
  MASSACHUSETTS.

* HEAT INDEX VALUES...UP TO 104 DEGREES.

* TIMING...FROM 11 AM THURSDAY UNTIL 7 PM THURSDAY EVENING.

* IMPACTS...HEAT INDICES UP TO 104 DEGREES WILL RESULT IN
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF
  TIME OUTSIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAT KILLS. 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.

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.

&&

$$
499 
WWUS71 KBOX 210331
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1131 PM EDT WED JUN 20 2012

CTZ002>004-MAZ004>007-011>021-026-NHZ012-015-RIZ001>004-211145-
/O.CON.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...SPRINGFIELD...MILFORD...
WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...
TAUNTON...BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...AYER...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK
1131 PM EDT WED JUN 20 2012

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT
THURSDAY...

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...SOUTHEAST NEW HAMPSHIRE...MOST OF CENTRAL AND
  EASTERN MASSACHUSETTS...AS WELL AS NORTHERN CONNECTICUT AND RHODE
  ISLAND. THE ADVISORY ALSO INCLUDES A SMALL PORTION OF SOUTHWEST
  MASSACHUSETTS.

* HEAT INDEX VALUES...UP TO 102.

* TIMING...FROM 11 AM THURSDAY UNTIL 7 PM THURSDAY EVENING.

* IMPACTS...HEAT INDICES UP TO 104 DEGREES WILL RESULT IN 
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF 
  TIME OUTSIDE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAT KILLS. 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.

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.

&&

$$
785 
WWUS71 KBOX 210738
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
338 AM EDT THU JUN 21 2012

MAZ003-010-NHZ011-RIZ005>007-211545-
/O.EXA.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
EASTERN FRANKLIN MA-EASTERN HAMPSHIRE MA-CHESHIRE NH-BRISTOL RI-
WASHINGTON RI-NEWPORT RI-
INCLUDING THE CITIES OF...GREENFIELD...ORANGE...AMHERST...
NORTHAMPTON...JAFFREY...KEENE...BRISTOL...NARRAGANSETT...
WESTERLY...NEWPORT
338 AM EDT THU JUN 21 2012

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT
THIS EVENING.

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...PORTIONS OF SOUTHWEST NEW HAMPSHIRE...PARTS OF
  WESTERN MASSACHUSETTS...AS WELL AS SOUTHERN RHODE ISLAND.

* HEAT INDEX VALUES...UP TO 101.

* TIMING...FROM 11 AM THIS MORNING UNTIL 7 PM THIS EVENING.

* IMPACTS...HEAT INDICES UP TO 101 DEGREES WILL RESULT IN
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF
  TIME OUTSIDE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAT KILLS. 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.

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.

&&

$$

CTZ002>004-MAZ004>007-011>021-026-NHZ012-015-RIZ001>004-211545-
/O.CON.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-EASTERN ESSEX MA-
EASTERN HAMPDEN MA-SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...BARRE...FITCHBURG...FRAMINGHAM...
LOWELL...LAWRENCE...GLOUCESTER...SPRINGFIELD...MILFORD...
WORCESTER...FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...
TAUNTON...BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...AYER...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK
338 AM EDT THU JUN 21 2012

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

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...PORTIONS OF SOUTHEAST NEW HAMPSHIRE...MOST OF
  CENTRAL AND EASTERN MASSACHUSETTS...AS WELL AS NORTHERN
  CONNECTICUT AND NORTHERN RHODE ISLAND. THIS ADVISORY ALSO
  INCLUDES SOUTHWEST MASSACHUSETTS.

* HEAT INDEX VALUES...UP TO 103.

* TIMING...FROM 11 AM THIS MORNING TO 7 PM THIS EVENING.

* IMPACTS...HEAT INDICES UP TO 103 DEGREES WILL RESULT IN
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF
  TIME OUTSIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAT KILLS. 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.

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.

&&

$$

FRANK
009 
WWUS71 KBOX 211419
NPWBOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1019 AM EDT THU JUN 21 2012

CTZ002>004-MAZ003>007-010>021-026-NHZ011-012-015-RIZ001>007-
212300-
/O.CON.KBOX.HT.Y.0002.120621T1500Z-120621T2300Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-EASTERN FRANKLIN MA-
NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-
EASTERN ESSEX MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER 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-NORTHERN MIDDLESEX MA-CHESHIRE NH-
EASTERN HILLSBOROUGH NH-WESTERN AND CENTRAL HILLSBOROUGH NH-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...GREENFIELD...ORANGE...BARRE...
FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...GLOUCESTER...
AMHERST...NORTHAMPTON...SPRINGFIELD...MILFORD...WORCESTER...
FOXBORO...NORWOOD...CAMBRIDGE...BOSTON...QUINCY...TAUNTON...
BROCKTON...PLYMOUTH...FALL RIVER...NEW BEDFORD...MATTAPOISETT...
AYER...JAFFREY...KEENE...MANCHESTER...NASHUA...PETERBOROUGH...
WEARE...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH...
WARWICK...BRISTOL...NARRAGANSETT...WESTERLY...NEWPORT
1019 AM EDT THU JUN 21 2012

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

* HAZARDS...HEAT ADVISORY.

* LOCATIONS...SOUTHWEST NEW HAMPSHIRE...MUCH OF
  MASSACHUSETTS...NORTHERN CONNECTICUT AND RHODE ISLAND.

* HEAT INDEX VALUES...UP TO 102.

* TIMING...FROM 11 AM THIS MORNING TO 7 PM THIS EVENING.

* IMPACTS...HEAT INDICES UP TO 102 DEGREES WILL RESULT IN
  DANGEROUS CONDITIONS FOR THOSE SPENDING PROLONGED PERIODS OF
  TIME OUTSIDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAT KILLS. 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.

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.

&&

$$

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 20, 4:05 PM EDT, 9 minutes earlier.

Area forecast discussion, Jun 20, 4:05 PM EDT, 9 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
405 PM EDT WED JUN 20 2012

.SYNOPSIS...

EXCESSIVE HEAT AND HUMIDITY WILL AFFECT THE REGION THROUGH
THURSDAY. A COLD FRONT WILL APPROACH THE REGION FRIDAY WITH SHOWERS
AND THUNDERSTORMS...SOME OF WHICH COULD BE SEVERE. THIS FRONT
WILL SLOWLY MOVE OFF THE COAST SATURDAY MORNING INTO MIDDAY AS A
WEAK HIGH PRESSURE BUILDS INTO THE REGION. INTO NEXT WEEK...AN
AREA OF LOW PRESSURE WILL AFFECT OUR REGION WITH CLOUDS AND
INTERMITTENT SHOWERS.

&&

.NEAR TERM /UNTIL 6 AM THURSDAY MORNING/...

TEMPERATURES CONTINUE TO RISE ACROSS SOUTHERN NEW ENGLAND THIS
AFTERNOON...ALBEIT MORE SLOWLY THAN EARLIER TODAY. OBSERVED DEW
POINTS ARE A LITTLE HIGHER THAN MOST OF THE 12Z GUIDANCE. THIS HAS
RESULTED IN HEAT INDICES AROUND 100 DEGREES ACROSS A BIG PORTION
OF THE AREA. EXPANDED THE HEAT ADVISORY TO COVER JUST ABOUT ALL OF
SOUTHERN NEW ENGLAND. SOME CONCERN SOME AREAS MIGHT HIT EXCESSIVE
HEAT WARNING CRITERIA...HEAT INDICES OF 105 OR GREATER...
PARTICULARLY IN THE CT RIVER VALLEY. DO NOT THINK THESE EXCESSIVE
HEAT INDICES WILL PERSIST LONG ENOUGH TO WARRANT A WARNING AT THIS
TIME.

OTHERWISE DRY WEATHER CONTINUES TONIGHT. NOT AS CONCERNED FOR
FOG...BUT CANNOT RULE OUT A FEW PATCHES AT THE USUAL LOCATIONS AS
WELL AS ACROSS THE COASTAL WATERS. MINIMUM TEMPERATURES TONIGHT
ARE EXPECTED TO BE JUST BELOW OUR NORMAL HIGH TEMPERATURES FOR
THIS TIME OF YEAR.

&&

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

**EXCESSIVE HEAT AND HUMIDITY CONTINUES THURSDAY***

THURSDAY...
A MOSTLY SUNNY...HOT AND HUMID DAY IS IN STORE FOR THE REGION.
HIGHS AGAIN WILL BE IN THE MIDDLE TO UPPER 90S AWAY FROM THE MARINE
INFLUENCE OF THE CAPE AND ISLANDS.  THERE MAY BE A VERY SUBTLE SEA
BREEZE THAT DEVELOPS ALONG THE VERY IMMEDIATE COAST DURING THE
AFTERNOON...BUT IT WON/T PROVIDE MUCH RELIEF.  AFTERNOON HEAT INDEX
VALUES WILL ONCE AGAIN BE NEAR OR EVEN SLIGHTLY ABOVE 100
DEGREES...SO ANOTHER HEAT ADVISORY WILL LIKELY BE NEEDED FOR
PORTIONS OF THE REGION.

DRY WEATHER IS GENERALLY EXPECTED GIVEN UPPER LEVEL RIDGING. GFS
IS WARMER AT 700 MB THAN THE NAM...HENCE IT IS NOT AS BULLISH ON
PRECIPITATION. CANNOT RULE OUT AN ISOLATED SHOWER OR
THUNDERSTORM...BUT HAVE VERY LOW CONFIDENCE ON THE COVERAGE.

THURSDAY NIGHT...
20/12Z GUIDANCE CONTINUES THE TREND OF SLOWING THE ARRIVAL OF A
COLD FRONT THURSDAY NIGHT. EXPECTING THIS FRONT TO STILL BE IN THE
GREAT LAKES REGION BY DAYBREAK FRIDAY. AS SUCH HAVE DECREASED THE
POPS ACROSS OUR REGION SLIGHTLY. WELL ABOVE NORMAL TEMPERATURES
WILL CONTINUE.

&&

.LONG TERM /FRIDAY THROUGH WEDNESDAY/...

FRIDAY AND FRIDAY NIGHT...

* SEVERE WX AND FLASH FLOODING THREAT PSBL
* HEAT INDICES AROUND 100 DEGREES PSBL DURING THE DAY

WARM AIR ADV PRECEDING THE TROF AXIS ACROSS THE GRT LKS RGN WILL
AMPLIFY THE LOW-MID LVL RIDGE SLIGHTLY ENOUGH TO SLOW THE APPROACH
OF THE SFC COLD FRNT. THIS WILL ALLOW THE PRIMING OF AN UNSTABLE
MOIST ENVIRONMENT WITH SFC-BASED INSTABILITY OF AROUND 3K J/KG CAPE
COLLOCATED WITH A SW-NE AXIS OF BUILDING SUBTROPICAL AIR /PWATS
ADVERTISED OF 1.5 TO 2 INCHES/. DIFLUENCE ALOFT COUPLED WITH STRONG
FRONTOGENETICAL LIFT THRU MUCH OF THE ATMOS COLUMN PRESENTS THE
LIKELIHOOD OF SHOWERS AND THUNDERSTORMS AHEAD OF THE FRNT. BETTER
JET DYNAMICS LAG THE FRNT WITH W/SWLY ORIENTATION OF THE 0-6 KM BULK
SHEAR VECTORS AVERAGING AROUND 35 KTS /THERE APPEARS THE POSSIBILITY
OF A FEW CELLS ALONG THE FRNT BECOMING DISCREET SHOULD THEY BECOME
RIGHT-MOVERS/. OVERALL WITH ALL POINTS CONSIDERED...EXPECT A LINE
PARALLEL TO THE SFC COLD FRNT OF SHOWERS/THUNDERSTORMS WITH EMBEDDED
HEAVIER RAINS. MAIN THREATS WILL BE LARGE HAIL...DAMAGING WINDS...
AND HEAVY DOWNPOURS PSBLY RESULTING IN URBAN AND POOR DRAINAGE FLASH
FLOODING /0-6 KM MEAN WIND IS SW-NE AROUND 20 MPH...AND THUS BOTH A
SLOW MOVING AND TRAINING SCENARIO IS QUITE PSBL/.

MAX TEMPS REACHING THE LOW-MID 90S COUPLED WITH DEWPOINTS IN THE LOW
70S MAY RESULT IN A THIRD DAY OF HEAT INDICES AROUND 100 DEGREES AND
THE REQUIREMENT OF HEAT ADV FOR PORTIONS OF THE FCST AREA.
UNCERTAINTY PREVAILS AS CLOUDS ASSOC WITH DEVELOPING STORMS ALONG
AND AHEAD OF THE SFC COLD FRNT MAY NEGATE THE IMPACTS DUE TO HEATING
OF THE DAY.

SATURDAY AND SATURDAY NIGHT...

* MORNING SHOWERS FOR THE ERN ZONES
* RENEWED DIURNALLY-DRIVEN SHOWER ACTIVITY ACROSS INTERIOR NEW ENG
* RETURN OF SEASONABLE AND DRIER WX

WRN ATLANTIC RIDGE SLOWS THE SFC COLD FRNT ALONG THE NEW ENGLAND
SHORELINE SAT MORN...BUT GRADUALLY KICKS OUT AS THE MAIN TROF AXIS
SWINGS E/NE OUT OF THE ERN GRT LKS. DRIER AND MORE SEASONABLE WX
ASSOC WITH WEAK HIGH PRES SEWD INTO THE OH RVR VLY IS DELAYED...SO A
MILD DAY /THOUGH DRIER AIR/ IS EXPECTED. WARM SFC TEMPS WILL ALLOW
FOR A WELL-MIXED BOUNDARY LYR RESULTING IN DIURNALLY DRIVEN SHOWER
ACTIVITY ACROSS CENTRAL AND NRN NEW ENGLAND WITHIN THE BETTER COLD
POOL ALOFT IN WAKE OF THE TROF AXIS COLLOCATED WITH FAVORABLE MID-
LVL LAPSE RATES /BEST FOCUS OF WET WX WILL BE ALONG W SLOPES OF
HIGHER TERRAIN WITH PREVAILING NWLY FLOW/. CHC POPS ACCORDINGLY.

SUNDAY INTO NEXT WEEK...

* SEASONABLE WX EXPECTED WITH A VERY ANOMALOUS LOW PRES PATTERN
* OMEGA BLOCK ACROSS THE CONUS WITH A NEGATIVE NAO
* A REPEAT OF THE BEGINNING OF JUNE?

IN BREVITY...MDL ENSEMBLE AND DETERMINISTIC FCSTS EMPHASIZE A VERY
NEGATIVE NAO PATTERN /SIMILAR TO THE BEGINNING OF JUNE/ RESULTING IN
AN OMEGA BLOCKING PATTERN OVER THE ENTIRE CONUS. A STRONG MID-UPR
LVL CLOSED LOW DROPS S OUT OF THE HUDSON BAY RGN...STALLING ACROSS
THE NERN CONUS INTO NEXT FRI. A COLLOCATED SFC LOW SIMULTANEOUSLY
SLIDES SEWD THRU THE GRT LKS...OCCLUDING ACROSS THE NERN CONUS WHILE
UPR LVL DYNAMICS INVOKE SFC CYCLOGENESIS OFF THE MID-ATLANTIC ALL
THE WHILE USURPING A TROPICAL SYS OUT OF THE GULF OF MEXICO NEWD
INTO THE WRN ATLANTIC.

WHILE THE EXACT SPATIAL AND TEMPORAL SPECIFICS ARE UNCERTAIN...AM
CONFIDENT MORE SEASONABLE WX IS EXPECTED WITH INTERMITTENT PERIODS
OF WET WX WHICH WITH ACCOMPANYING CLOUDS WILL IMPACT TEMP FCSTS. A
SIGNIFICANT AMNT OF THE FCST ALSO DEPENDS ON THE PLACEMENT OF THE UPR
LVL CLOSED LOW AND ATTENDANT SFC LOW...THUS INFLUENCING BOTH
DYNAMICS AND WINDS THROUGHOUT THE ATMOS COLUMN.

LIKELY THE EXTENDED FCST WILL CHANGE WITH TIME...SO LOW CONFIDENCE
PREVAILS. AM LEANING TOWARDS OUTCOMES SIMILAR TO WHAT WAS OBSERVED
DURING THE BEGINNING OF JUNE.

&&

.AVIATION /20Z WEDNESDAY THROUGH MONDAY/...

FORECASTER CONFIDENCE LEVELS...
  LOW...LESS THAN 30 PERCENT
  MODERATE...30 PERCENT TO 60 PERCENT
  HIGH...GREATER THAN 60 PERCENT

OVERVIEW...
MODERATE TO HIGH CONFIDENCE. MAINLY VFR CONDITIONS THROUGH
THURSDAY NIGHT. BRIEF MVFR VISIBILITIES MAY DEVELOP FOR A FEW
HOURS LATE TONIGHT/EARLY THU...AND AGAIN THURSDAY NIGHT. EXPECT
ANY MVFR CONDITIONS TO QUICKLY DISSIPATE AFTER SUNRISE. ISOLATED
SHRA/TSRA POSSIBLE...BUT LOW CONFIDENCE. GREATEST RISK WILL BE
ACROSS SOUTHERN NH AND NORTHEAST MA TOMORROW AFTERNOON AND
EVENING.

KBOS TAF...HIGH CONFIDENCE. MAINLY VFR CONDITIONS EXPECTED TODAY AND
TONIGHT. HOWEVER...A FEW HOURS OF MVFR VISIBILITIES ARE POSSIBLE
LATE TONIGHT. SEA BREEZE WILL NOT OCCUR TODAY.

KBDL TAF...HIGH CONFIDENCE. MAINLY VFR CONDITIONS EXPECTED TODAY AND
TONIGHT.  HOWEVER...A FEW HOURS OF MVFR VISIBILITIES ARE POSSIBLE
LATE TONIGHT.

OUTLOOK...FRIDAY THROUGH MONDAY...

FRIDAY AND FRIDAY NIGHT...MODERATE TO HIGH CONFIDENCE.
COLD FRNT SLIDES ACROSS THE TERMINALS. CONCERN OVER FOG ALONG THE SE
COASTLINE DURING THE MORN...LOW CONFIDENCE. LIKELY +SHRA/+TSRA WHICH
WILL LEAD TO INTERMITTENT IFR-LIFR VSBY AND CIG /CB/ IMPACTS DURING
THE DAY...LINGERING ACROSS THE ERN TERMINALS OVRNGT.

SATURDAY AND SATURDAY NIGHT...MODERATE CONFIDENCE.
COLD FRNT GRADUALLY PUSHES OFFSHORE BY MIDDAY. SHOWERS AND PSBL FOG
LINGER FOR ERN TERMINALS DURING THE MORNING THEN IMPROVING. SHOWERS
ACROSS THE CENTRAL AND NRN INTERIOR DURING THE DAY WITH MVFR CIGS
PSBL. OTHERWISE VFR.

SUNDAY INTO NEXT WEEK...LOW TO MODERATE CONFIDENCE.
AN INITIAL COLD FRNT WILL TRANSLATE AS AN AREA OF LOW PRES ACROSS
THE TERMINALS WITH INTERMITTENT SHOWERS AND LIKELY MVFR-IFR CIGS AT
TIMES. LESSER CONFIDENCE ON SPECIFIC VSBY IMPACTS.

&&

.MARINE...

HIGH CONFIDENCE. WINDS AND SEAS WILL REMAIN BELOW SMALL CRAFT
ADVISORY THRESHOLDS THROUGH THURSDAY NIGHT WITH A WEAK PRESSURE
GRADIENT IN PLACE.

OUTLOOK...FRIDAY THROUGH MONDAY...

MODERATE TO HIGH CONFIDENCE. WHILE WINDS AND SEAS ARE EXPECTED TO
REMAIN BELOW SMALL CRAFT ADV CRITERIA...A COLD FRNT WILL SWEEP INTO
THE WATERS LATE FRI LIFTING OUT TO SEA AROUND MIDDAY SAT. THERE IS
THE PLAUSIBILITY OF SEEING A FEW STRONG STORMS WHICH COULD REACH OR
EXCEED MARINE WARNING CRITERIA...GENERATING WIND GUSTS IN EXCESS OF
33 KTS WITH HEAVY DOWNPOURS AND REDUCED VSBYS OVER THE WATERS.

PATCHY FOG WILL ALSO BE PSBL /PRIMARILY ACROSS THE SE WATERS/ FOR
BOTH FRI AND SAT MORN. LOW TO MODERATE CONFIDENCE.

&&

.CLIMATE...

NO RECORDS HAVE YET BEEN REACHED TODAY...ALTHOUGH SOME SITES ARE
CLOSE.

RECORD HIGH TEMPERATURES FOR TODAY AND THURSDAY:

BOSTON -     TODAY - 98 SET IN 1953 /95 AS OF 354 PM EDT/
               THU - 95 SET IN 1949

PROVIDENCE - TODAY - 95 SET IN 1941 /94 AS OF 151 PM EDT/
               THU - 96 SET IN 1941

HARTFORD -   TODAY - 96 SET IN 1995 /97 AS OF 351 PM EDT/
               THU - 96 SET IN 1953

WORCESTER -  TODAY - 93 SET IN 1953 /92 AS OF 351 PM EDT/
               THU - 91 SET IN 1953

&&

.BOX WATCHES/WARNINGS/ADVISORIES...

CT...HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR CTZ002>004.
     HEAT ADVISORY FROM 11 AM TO 7 PM EDT THURSDAY FOR CTZ002>004.
MA...AIR QUALITY ALERT UNTIL 11 PM EDT THIS EVENING FOR MAZ020>024.
     HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR MAZ002>021-026.
     HEAT ADVISORY FROM 11 AM TO 7 PM EDT THURSDAY FOR MAZ004>007-
     011>021-026.
     AIR QUALITY ALERT FROM NOON THURSDAY TO MIDNIGHT EDT THURSDAY
     NIGHT FOR MAZ020>024.
NH...HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR NHZ011-012-015.
     HEAT ADVISORY FROM 11 AM TO 7 PM EDT THURSDAY FOR NHZ012-015.
RI...AIR QUALITY ALERT UNTIL 11 PM EDT THIS EVENING FOR RIZ003>008.
     AIR QUALITY ALERT FROM 11 AM TO 11 PM EDT THURSDAY FOR
     RIZ003>008.
     HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR RIZ001>007.
     HEAT ADVISORY FROM 11 AM TO 7 PM EDT THURSDAY FOR RIZ001>004.
MARINE...NONE.

&&

SYNOPSIS...BELK/SIPPRELL
NEAR TERM...BELK
SHORT TERM...BELK
LONG TERM...SIPPRELL
AVIATION...BELK/SIPPRELL
MARINE...BELK/SIPPRELL
CLIMATE...WFO BOX
Hazardous weather outlook, Jun 20, 4:26 AM EDT, 11 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
426 AM EDT WED JUN 20 2012

MAZ002>004-008>010-012-NHZ011-210830-
WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-
WESTERN HAMPSHIRE MA-WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-
SOUTHERN WORCESTER MA-CHESHIRE NH-
426 AM EDT WED JUN 20 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL
MASSACHUSETTS...WESTERN MASSACHUSETTS AND SOUTHERN NEW HAMPSHIRE.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A HIGH PROBABILITY OF CONTINUED HOT AND HUMID CONDITIONS
THURSDAY. MAXIMUM HEAT INDICES SHOULD REACH CLOSE TO 100 DEGREES.
HEAT ADVISORIES MAY BE NEEDED ACROSS PORTIONS OF THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MAZ022>024-RIZ008-210830-
BARNSTABLE MA-DUKES MA-NANTUCKET MA-BLOCK ISLAND RI-
426 AM EDT WED JUN 20 2012

...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN MASSACHUSETTS
AND SOUTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   AIR QUALITY ALERT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A HIGH PROBABILITY OF CONTINUED HOT AND HUMID CONDITIONS
THURSDAY. MAXIMUM HEAT INDICES SHOULD REACH AROUND 100 DEGREES.
HEAT ADVISORIES MAY BE NEEDED ACROSS PORTIONS OF THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

CTZ002>004-MAZ005>007-011-013>019-026-NHZ012-015-RIZ001-002-210830-
HARTFORD CT-TOLLAND CT-WINDHAM CT-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-EASTERN HAMPDEN MA-
WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA-SUFFOLK MA-
EASTERN NORFOLK MA-NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-
EASTERN PLYMOUTH MA-NORTHERN MIDDLESEX MA-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-
426 AM EDT WED JUN 20 2012

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN CONNECTICUT...
EASTERN MASSACHUSETTS...NORTHEASTERN MASSACHUSETTS...SOUTHEASTERN
MASSACHUSETTS...WESTERN MASSACHUSETTS...SOUTHERN NEW HAMPSHIRE AND
NORTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A HIGH PROBABILITY OF HOT AND HUMID CONDITIONS THURSDAY.
MAXIMUM HEAT INDICES SHOULD REACH AROUND 100 DEGREES. HEAT
ADVISORIES MAY BE NEEDED ACROSS PORTIONS OF THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MAZ020-021-RIZ003>007-210830-
SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-WESTERN KENT RI-
EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI-
426 AM EDT WED JUN 20 2012

...AIR QUALITY ALERT IN EFFECT FROM 11 AM THIS MORNING TO 11 PM EDT
THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEASTERN
MASSACHUSETTS...NORTHERN RHODE ISLAND AND SOUTHERN RHODE ISLAND.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   AIR QUALITY ALERT.
   HEAT ADVISORY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THERE IS A HIGH PROBABILITY OF CONTINUED HOT AND HUMID CONDITIONS.
MAXIMUM HEAT INDICES SHOULD REACH AROUND 100 DEGREES. HEAT ADVISORIES
MAY BE NEEDED IN PORTIONS OF THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-210830-
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-
426 AM EDT WED JUN 20 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MASSACHUSETTS COASTAL WATERS
AND RHODE ISLAND COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

LATE NIGHT AND EARLY MORNING PATCHY DENSE FOG IS POSSIBLE BOTH
WEDNESDAY NIGHT AND THURSDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

Nearby

Heat Advisories in Massachusetts, 2012Heat Advisories in Rhode Island, 2012Heat Advisories in Connecticut, 2012Every heat advisory in 2012

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.