Alert archive / Massachusetts / Winter Storm Watches in 2011

Winter Storm Watch 5, NWS Boston/Norton, MA

January 31, 201110 counties in Massachusetts; Kent County, Providence County, Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this winter storm watch at Jan 31, 2011, 4:43 AM EST for 10 counties in Massachusetts; Kent County, Providence County, Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Feb 1, 2011, 6:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 31, 2011, 4:43 AM EST (09:43 UTC)
In effect from
Feb 1, 2011, 6:00 AM EST
Expired
Jan 31, 2011, 4:52 PM EST
In force
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, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 51 km from the middle of the area, began a volume at 09:45 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 00:00Z, 9.7 hours before the alert went out and 153 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 00:00Z on 2011-01-31Temperature 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 00:00Z on 2011-01-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.1939587897117136156Sfc1 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
1244 m above ground
0-6 km bulk shear
97 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
126 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.

269 
WWUS41 KBOX 310943
WSWBOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
443 AM EST MON JAN 31 2011

...A SIGNIFICANT WINTRY WEATHER EVENT WILL ARRIVE IN TWO MAIN ROUNDS
TUESDAY THROUGH WEDNESDAY EVENING...

CTZ002>004-MAZ002>019-026-RIZ001>003-311745-
/O.NEW.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN 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-NORTHERN MIDDLESEX MA-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD...
ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...
GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...
SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD...
CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH...
AYER...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH
443 AM EST MON JAN 31 2011

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH LATE
WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH LATE
WEDNESDAY NIGHT. 

* LOCATIONS...ALL OF MASSACHUSETTS EXCLUDING THE SOUTH COAST AND
  EXCLUDING CAPE COD AND THE ISLANDS...NORTHERN RHODE ISLAND...NORTH
  CENTRAL AND NORTHEASTERN CONNECTICUT. 

* HAZARD TYPES...SNOW TUESDAY. SNOW...SLEET AND FREEZING RAIN
  LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING.

* ACCUMULATIONS...SIX INCHES OR MORE OF SNOW...A FOOT OR MORE
  POSSIBLE NORTH OF THE MASS PIKE. ACCUMULATIONS WILL BE DEPENDENT
  ON THE AMOUNT OF SLEET AND FREEZING RAIN. UP TO ONE QUARTER OF
  AN INCH OF GLAZE OR MORE IS POSSIBLE IN ADDITION TO THE SNOW AND
  SLEET ACCUMULATION.

* TIMING...SNOW WILL BEGIN TO OVERSPREAD WESTERN MASSACHUSETTS...
  RHODE ISLAND AND NORTHERN CONNECTICUT BY DAYBREAK TUESDAY...THEN
  ACROSS EASTERN MASSACHUSETTS BY LATE TUESDAY MORNING. SNOW WILL
  BE LIGHT TO OCCASIONALLY MODERATE AT TIMES AND ACCUMULATE 3 TO 6
  INCHES BY THE TUESDAY EVENING COMMUTE. 

  LIGHT SNOW WILL TAPER OFF TUESDAY EVENING BEFORE PRECIPITATION
  INTENSITY INCREASES AGAIN LATE AT NIGHT.

  SNOW WILL INCREASE IN INTENSITY AGAIN LATE TUESDAY NIGHT.
  SNOW WILL THEN LIKELY MIX WITH AND CHANGE TO WITH SLEET AND
  FREEZING RAIN SOUTH OF THE PIKE LATE TUESDAY NIGHT AND
  WEDNESDAY. NORTH OF THE PIKE SNOW MAY BECOME MIXED WITH SLEET
  AND PERHAPS FREEZING RAIN AT TIMES WEDNESDAY AFTERNOON.

  PRECIPITATION IS EXPECTED TO CHANGE BACK TO ALL SNOW WEDNESDAY
  EVENING BEFORE TAPERING OFF OVERNIGHT WEDNESDAY NIGHT.
 
* IMPACTS...TRAVEL WILL BE ADVERSELY IMPACTED TUESDAY THROUGH
  WEDNESDAY EVENING. SNOW AND ICE ACCUMULATION WILL MAKE FOR
  DANGEROUS TRAVEL. ANY ICE ACCUMULATION MAY KNOCK DOWN TREE LIMBS
  AND POWER LINES. SNOW AND ICE CLOGGED STORM DRAINS...ROOFS AND
  GUTTERS SHOULD ONLY BE REMOVED BY OR WITH THE SUPERVISION OF
  PROFESSIONALS AND/OR ADULTS. THE WEIGHT OF THE SNOW AND ICE MAY
  CAUSE ADDITIONAL STRUCTURAL DAMAGE FOR SOME BUSINESSES AND
  HOMES.
 
* WINDS...NORTHEAST 5 TO 15 MPH TUESDAY INCREASING TO 15 TO 25 MPH
  WEDNESDAY.

* TEMPERATURES...18 TO 25 NORTH OF THE MASS PIKE TUESDAY...25 TO
  32 SOUTH OF THE MASS PIKE TUESDAY. LOWS 15 TO 20 NORTH AND 20 TO
  25 SOUTH TUESDAY NIGHT. HIGHS 25 TO 30 NORTH AND 30 TO 35 SOUTH
  WEDNESDAY.

* VISIBILITIES...REDUCED AT TIMES TO ONE HALF MILE OR LESS
  PRIMARILY TUESDAY LATE MORNING THROUGH THE AFTERNOON AND AGAIN
  LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED FOR THE POTENTIAL OF ACCUMULATING
SNOW OF 6 OR MORE INCHES IN A 12 HOUR PERIOD...OR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. ANYONE TRAVELING IN THE NEXT 24 TO
36 HOURS SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO MODIFY
TRAVEL PLANS SHOULD WINTER WEATHER DEVELOP.

&&

$$

STRAUSS/WTB
2 follow-up statements
096 
WWUS41 KBOX 311742
WSWBOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
1242 PM EST MON JAN 31 2011

...A SIGNIFICANT WINTRY WEATHER EVENT WILL ARRIVE IN TWO MAIN
ROUNDS TUESDAY THROUGH WEDNESDAY EVENING...

CTZ002>004-MAZ002>019-026-RIZ001>003-010145-
/O.CON.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN 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-NORTHERN MIDDLESEX MA-
NORTHWEST PROVIDENCE RI-SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...CHARLEMONT...GREENFIELD...
ORANGE...BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...
GLOUCESTER...CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...
SPRINGFIELD...MILFORD...WORCESTER...FOXBORO...NORWOOD...
CAMBRIDGE...BOSTON...QUINCY...TAUNTON...BROCKTON...PLYMOUTH...
AYER...FOSTER...SMITHFIELD...PROVIDENCE...WEST GREENWICH
1242 PM EST MON JAN 31 2011

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH LATE WEDNESDAY NIGHT...

A WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH LATE WEDNESDAY NIGHT. 

* LOCATIONS...ALL OF MASSACHUSETTS EXCLUDING THE SOUTH COAST AND 
  EXCLUDING CAPE COD AND THE ISLANDS...NORTHERN RHODE ISLAND... 
  NORTH CENTRAL AND NORTHEASTERN CONNECTICUT. 

* HAZARD TYPES...SNOW TUESDAY. SNOW...SLEET AND FREEZING RAIN 
  LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING. 

* ACCUMULATIONS...SIX INCHES OR MORE OF SNOW...A FOOT OR MORE
  POSSIBLE NORTH OF THE MASS PIKE. ACCUMULATIONS WILL BE DEPENDENT
  ON THE AMOUNT OF SLEET AND FREEZING RAIN. ONE QUARTER OF AN
  INCH OF GLAZE OR MORE IS POSSIBLE IN ADDITION TO THE SNOW AND
  SLEET ACCUMULATION.

* TIMING...SNOW WILL BEGIN TO OVERSPREAD WESTERN MASSACHUSETTS AND
  NORTHERN CONNECTICUT BY 4 AM TUESDAY...THEN ACROSS RHODE ISLAND
  AND EASTERN MASSACHUSETTS BETWEEN 5 AM AND 6 AM TUESDAY MORNING.
  SNOW WILL BE LIGHT TO OCCASIONALLY MODERATE AT TIMES AND
  ACCUMULATE 4 TO 8 INCHES BY THE TUESDAY EVENING COMMUTE.
 
  SNOW WILL TAPER OFF TUESDAY EVENING WITH A BREAK IN THE ACTION
  BEFORE PRECIPITATION BEGINS AGAIN EARLY WEDNESDAY MORNING. SNOW WILL
  INCREASE IN INTENSITY AGAIN BEFORE DAYBREAK WEDNESDAY. SNOW WILL 
  LIKELY MIX WITH AND CHANGE TO SLEET AND FREEZING RAIN SOUTH OF THE 
  MASS PIKE. NORTH OF THE PIKE SNOW MAY BECOME MIXED WITH SLEET AND 
  PERHAPS FREEZING RAIN AT TIMES WEDNESDAY AFTERNOON.

  MOST PRECIPITATION WILL END BY WEDNESDAY EVENING BUT IN
  NORTHWEST MASSACHUSETTS SNOW IS NOT EXPECTED TO TAPER OFF UNTIL
  LATER WEDNESDAY NIGHT.

* IMPACTS...TRAVEL WILL BE ADVERSELY IMPACTED TUESDAY THROUGH 
  WEDNESDAY EVENING. SNOW AND ICE ACCUMULATION WILL MAKE FOR 
  DANGEROUS TRAVEL. ANY ICE ACCUMULATION MAY KNOCK DOWN TREE 
  LIMBS AND POWER LINES. SNOW AND ICE CLOGGED STORM DRAINS...
  ROOFS AND GUTTERS SHOULD ONLY BE REMOVED BY OR WITH THE 
  SUPERVISION OF PROFESSIONALS AND/OR ADULTS. THE WEIGHT OF THE 
  SNOW AND ICE MAY CAUSE ADDITIONAL STRUCTURAL DAMAGE FOR SOME 
  BUSINESSES AND HOMES. 

* WINDS...NORTHEAST 5 TO 15 MPH TUESDAY INCREASING TO 15 TO 25 
  MPH WEDNESDAY. 

* TEMPERATURES...18 TO 25 NORTH OF THE MASS PIKE TUESDAY...25 TO 
  32 SOUTH OF THE MASS PIKE TUESDAY. LOWS 15 TO 20 NORTH AND 20 
  TO 25 SOUTH TUESDAY NIGHT. HIGHS 25 TO 30 NORTH AND 30 TO 35 
  SOUTH WEDNESDAY. 

* VISIBILITIES...REDUCED AT TIMES TO ONE HALF MILE OR LESS 
  PRIMARILY TUESDAY LATE MORNING THROUGH THE AFTERNOON AND AGAIN 
  LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH IS ISSUED FOR THE POTENTIAL OF ACCUMULATING
SNOW OF 6 OR MORE INCHES IN A 12 HOUR PERIOD...OR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. ANYONE TRAVELING IN THE NEXT 24 TO
36 HOURS SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO MODIFY
TRAVEL PLANS SHOULD WINTER WEATHER DEVELOP.

&&

$$
FIELD
077 
WWUS41 KBOX 312152
WSWBOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
452 PM EST MON JAN 31 2011

...A SIGNIFICANT WINTER WEATHER EVENT WILL ARRIVE IN TWO ROUNDS
TUESDAY THROUGH WEDNESDAY EVENING...

MAZ002>006-008>012-026-010600-
/O.UPG.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
/O.NEW.KBOX.WS.W.0008.110201T1100Z-110203T0600Z/
WESTERN FRANKLIN MA-EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-
CENTRAL MIDDLESEX MA-WESTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER MA-NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF...CHARLEMONT...GREENFIELD...ORANGE...
BARRE...FITCHBURG...FRAMINGHAM...LOWELL...LAWRENCE...
CHESTERFIELD...BLANDFORD...AMHERST...NORTHAMPTON...SPRINGFIELD...
MILFORD...WORCESTER...AYER
452 PM EST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 1 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO
1 AM EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...WESTERN AND CENTRAL MASSACHUSETTS...AS WELL AS
  INTERIOR ESSEX COUNTY IN MASSACHUSETTS.

* HAZARD TYPES...HEAVY SNOW.

* ACCUMULATIONS...18 TO 24 INCHES OF SNOW.

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  THEN SHOULD ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY. IT IS
  POSSIBLE FOR SOME SLEET TO MIX WITH THE SNOW SOUTH OF ROUTE 2 IN
  MASSACHUSETTS WEDNESDAY AFTERNOON.

* IMPACTS...SIGNIFICANT SNOW AND SLEET ACCUMULATIONS WILL MAKE
  TRAVEL ON UNTREATED SURFACES TREACHEROUS. THE ADDITIONAL SNOW...
  OR EVEN WORSE HEAVIER SLEET...COULD FURTHER STRAIN WEAKER
  STRUCTURES AND TREE LIMBS. POWER LINES MAY ALSO BE DOWNED...
  RESULTING IN ISOLATED POWER OUTAGES.

* WINDS...NORTH 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...AROUND 20 FOR HIGH TEMPERATURES TUESDAY AND
  WEDNESDAY. ZERO TO 10 ABOVE FOR LOWS TUESDAY NIGHT. 

* VISIBILITIES...ONE HALF MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN AN AVERAGE OF 6 OR MORE
INCHES OF SNOW IS EXPECTED IN A 12 HOUR PERIOD...OR FOR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. TRAVEL WILL BE SLOW AT BEST ON WELL
TREATED SURFACES...AND QUITE DIFFICULT ON ANY UNPLOWED OR
UNTREATED SURFACES.

&&

$$

MAZ007-013>016-010600-
/O.UPG.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
/O.NEW.KBOX.WS.W.0008.110201T1100Z-110203T0600Z/
EASTERN ESSEX MA-WESTERN NORFOLK MA-SOUTHEAST MIDDLESEX MA-
SUFFOLK MA-EASTERN NORFOLK MA-
INCLUDING THE CITIES OF...GLOUCESTER...FOXBORO...NORWOOD...
CAMBRIDGE...BOSTON...QUINCY
452 PM EST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 1 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO
1 AM EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...THE EAST COAST OF MASSACHUSETTS FROM BOSTON NORTH...
  AS WELL AS NORFOLK AND SOUTHEAST MIDDLESEX COUNTIES IN
  MASSACHUSETTS. 

* HAZARD TYPES...HEAVY SNOW.

* ACCUMULATIONS...12 TO 16 INCHES OF SNOW THROUGH WEDNESDAY
  EVENING. 

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  THEN SHOULD ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY. IT IS
  POSSIBLE FOR SOME SLEET TO MIX WITH THE SNOW SOUTH OF ROUTE 2
  AND ALONG THE IMMEDIATE COAST WEDNESDAY AFTERNOON.

* IMPACTS...SIGNIFICANT SNOW AND SLEET ACCUMULATIONS WILL MAKE
  TRAVEL ON UNTREATED SURFACES TREACHEROUS. THE ADDITIONAL SNOW...
  OR EVEN WORSE HEAVIER SLEET...COULD FURTHER STRAIN WEAKER
  STRUCTURES AND TREE LIMBS. POWER LINES MAY ALSO BE DOWNED...
  RESULTING IN ISOLATED POWER OUTAGES.

* WINDS...NORTH 15 TO 25 MPH.

* TEMPERATURES...IN THE LOWER 20S THROUGH TUESDAY NIGHT. HIGHS
  AROUND 30 WEDNESDAY.

* VISIBILITIES...ONE HALF MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN AN AVERAGE OF 6 OR MORE
INCHES OF SNOW IS EXPECTED IN A 12 HOUR PERIOD...OR FOR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. TRAVEL WILL BE SLOW AT BEST ON WELL
TREATED SURFACES...AND QUITE DIFFICULT ON ANY UNPLOWED OR
UNTREATED SURFACES.

&&

$$

CTZ002>004-RIZ001>003-010600-
/O.UPG.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
/O.NEW.KBOX.WS.W.0008.110201T1100Z-110203T0600Z/
HARTFORD CT-TOLLAND CT-WINDHAM CT-NORTHWEST PROVIDENCE RI-
SOUTHEAST PROVIDENCE RI-WESTERN KENT RI-
INCLUDING THE CITIES OF...HARTFORD...WINDSOR LOCKS...UNION...
VERNON...PUTNAM...WILLIMANTIC...FOSTER...SMITHFIELD...
PROVIDENCE...WEST GREENWICH
452 PM EST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 1 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO 
1 AM EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...NORTHERN CONNECTICUT AND NORTHERN RHODE ISLAND.

* HAZARD TYPES...HEAVY SNOW AND FREEZING RAIN.

* ACCUMULATIONS...10 TO 14 INCHES OF SNOW THROUGH WEDNESDAY
  EVENING. ONE TENTH TO ONE QUARTER INCH OF ICE WEDNESDAY
  AFTERNOON. 

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY 
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  AND SLEET SHOULD THEN ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY.
  IT IS POSSIBLE FOR A MIX OF SLEET AND FREEZING RAIN TO DEVELOP
  WEDNESDAY AFTERNOON. THE STORM SHOULD FINALLY END AS ALL SNOW
  WEDNESDAY NIGHT.

* IMPACTS...SIGNIFICANT SNOW AND SLEET ACCUMULATIONS WILL MAKE
  TRAVEL ON UNTREATED SURFACES TREACHEROUS. THE ADDITIONAL SNOW...
  OR EVEN WORSE HEAVIER SLEET...COULD FURTHER STRAIN WEAKER
  STRUCTURES AND TREE LIMBS. POWER LINES MAY ALSO BE DOWNED...
  RESULTING IN ISOLATED POWER OUTAGES.

* WINDS...NORTH 5 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TEMPERATURES...HIGHS IN THE 20S TUESDAY. LOWS AROUND 20 TUESDAY
  NIGHT. HIGHS AROUND 30 WEDNESDAY.

* VISIBILITIES...ONE HALF TO ONE MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN AN AVERAGE OF 6 OR MORE
INCHES OF SNOW IS EXPECTED IN A 12 HOUR PERIOD...OR FOR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. TRAVEL WILL BE SLOW AT BEST ON WELL
TREATED SURFACES...AND QUITE DIFFICULT ON ANY UNPLOWED OR
UNTREATED SURFACES.

&&

$$

NHZ011-012-015-010600-
/O.NEW.KBOX.WS.W.0008.110201T1100Z-110203T0600Z/
CHESHIRE NH-EASTERN HILLSBOROUGH NH-
WESTERN AND CENTRAL HILLSBOROUGH NH-
INCLUDING THE CITIES OF...JAFFREY...KEENE...MANCHESTER...NASHUA...
PETERBOROUGH...WEARE
452 PM EST MON JAN 31 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM TUESDAY TO 1 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER STORM
WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO
1 AM EST THURSDAY.

* LOCATIONS...SOUTHERN NEW HAMPSHIRE.

* HAZARD TYPES...HEAVY SNOW.

* ACCUMULATIONS...18 TO 24 INCHES OF SNOW THROUGH WEDNESDAY
  EVENING. 

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  SHOULD THEN ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY.

* IMPACTS...SIGNIFICANT SNOW ACCUMULATIONS WILL MAKE TRAVEL ON
  UNTREATED SURFACES TREACHEROUS. THE ADDITIONAL SNOW COULD
  FURTHER STRAIN WEAKER STRUCTURES AND TREE LIMBS. POWER LINES MAY
  ALSO BE DOWNED...RESULTING IN ISOLATED POWER OUTAGES.

* WINDS...NORTH 10 TO 15 MPH WITH GUSTS UP TO 20 MPH.

* TEMPERATURES...HIGHS AROUND 20 TUESDAY AND WEDNESDAY. LOWS 10 TO
  15 ABOVE TUESDAY NIGHT.

* VISIBILITIES...ONE QUARTER TO ONE HALF MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING IS ISSUED WHEN AN AVERAGE OF 6 OR MORE
INCHES OF SNOW IS EXPECTED IN A 12 HOUR PERIOD...OR FOR 8 OR MORE
INCHES IN A 24 HOUR PERIOD. TRAVEL WILL BE SLOW AT BEST ON WELL
TREATED SURFACES...AND QUITE DIFFICULT ON ANY UNPLOWED OR
UNTREATED SURFACES.

&&

$$

MAZ017>019-010600-
/O.UPG.KBOX.WS.A.0005.110201T1100Z-110203T0600Z/
/O.NEW.KBOX.WW.Y.0008.110201T1100Z-110203T0600Z/
NORTHERN BRISTOL MA-WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-
INCLUDING THE CITIES OF...TAUNTON...BROCKTON...PLYMOUTH
452 PM EST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 1 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO 1 AM
EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* LOCATIONS...SOUTHEAST MASSACHUSETTS.

* HAZARD TYPES...SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...8 TO 12 INCHES OF SNOW AND SLEET THROUGH
  WEDNESDAY EVENING. ONE TENTH TO ONE QUARTER INCH OF ICE POSSIBLE
  WEDNESDAY AFTERNOON.

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY 
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  AND SLEET SHOULD THEN ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY.
  IT IS POSSIBLE FOR A MIX OF SLEET AND FREEZING RAIN TO DEVELOP
  WEDNESDAY AFTERNOON. THE STORM SHOULD FINALLY END AS ALL SNOW
  WEDNESDAY NIGHT.

* IMPACTS...SIGNIFICANT SNOW AND SLEET ACCUMULATIONS...AS WELL AS
  FREEZING RAIN...WILL MAKE TRAVEL ON UNTREATED SURFACES
  TREACHEROUS. THE ADDITIONAL SNOW...OR EVEN WORSE HEAVIER
  SLEET...COULD FURTHER STRAIN WEAKER STRUCTURES AND TREE LIMBS.
  POWER LINES MAY ALSO BE DOWNED...RESULTING IN ISOLATED POWER
  OUTAGES. 

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...HIGHS IN THE UPPER 20S TUESDAY. LOWS IN THE MID
  20S TUESDAY NIGHT. HIGHS IN THE MID 30S WEDNESDAY.

* VISIBILITIES...ONE HALF TO ONE MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW AND/OR ICE IS
FORECAST TO DEVELOP IN THE AFFECTED AREAS...BUT ACCUMULATIONS ARE
EXPECTED TO BE LIGHT. ANY SNOW OR ICE WOULD MAKE DRIVING AND
WALKING DIFFICULT...BUT NOT IMPOSSIBLE...ON UNTREATED ROADWAYS
AND SIDEWALKS.  WHEN TEMPERATURES ARE BELOW FREEZING...MOTORISTS
NEED TO BE ESPECIALLY CAREFUL ON BRIDGES AND OVERPASSES WHERE
SLIPPERY SPOTS CAN EASILY DEVELOP.

&&

$$

MAZ020>022-RIZ004>007-010600-
/O.NEW.KBOX.WW.Y.0008.110201T1100Z-110203T0600Z/
SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-BARNSTABLE MA-
EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-NEWPORT RI-
INCLUDING THE CITIES OF...FALL RIVER...NEW BEDFORD...
MATTAPOISETT...CHATHAM...FALMOUTH...PROVINCETOWN...WARWICK...
BRISTOL...NARRAGANSETT...WESTERLY...NEWPORT
452 PM EST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 1 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT FROM 6 AM TUESDAY TO 1 AM
EST THURSDAY.

* LOCATIONS...SOUTHERN RHODE ISLAND...SOUTH COASTAL MASSACHUSETTS
  AND CAPE COD.

* HAZARD TYPES...SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...4 TO 8 INCHES OF SNOW AND SLEET THROUGH
  WEDNESDAY EVENING. ONE TENTH TO ONE QUARTER INCH OF ICE
  ACCUMULATION POSSIBLE WEDNESDAY AFTERNOON.

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY 
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  AND SLEET SHOULD THEN ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY.
  IT IS POSSIBLE FOR A MIX OF SLEET AND FREEZING RAIN TO DEVELOP
  WEDNESDAY AFTERNOON. THE STORM SHOULD FINALLY END AS ALL SNOW
  WEDNESDAY NIGHT.

* IMPACTS...SIGNIFICANT SNOW AND SLEET ACCUMULATIONS...AS WELL AS
  FREEZING RAIN...WILL MAKE TRAVEL ON UNTREATED SURFACES
  TREACHEROUS. THE ADDITIONAL SNOW...OR EVEN WORSE HEAVIER
  SLEET...COULD FURTHER STRAIN WEAKER STRUCTURES AND TREE LIMBS.
  POWER LINES MAY ALSO BE DOWNED...RESULTING IN ISOLATED POWER
  OUTAGES. 

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TEMPERATURES...HIGHS IN THE UPPER 20S TUESDAY. LOWS IN THE MID
  20S TUESDAY NIGHT. HIGHS IN THE MID 30S WEDNESDAY.

* VISIBILITIES...ONE HALF TO ONE MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW AND/OR ICE IS
FORECAST TO DEVELOP IN THE AFFECTED AREAS...BUT ACCUMULATIONS ARE
EXPECTED TO BE LIGHT. ANY SNOW OR ICE WOULD MAKE DRIVING AND
WALKING DIFFICULT...BUT NOT IMPOSSIBLE...ON UNTREATED ROADWAYS
AND SIDEWALKS.  WHEN TEMPERATURES ARE BELOW FREEZING...MOTORISTS
NEED TO BE ESPECIALLY CAREFUL ON BRIDGES AND OVERPASSES WHERE
SLIPPERY SPOTS CAN EASILY DEVELOP.

&&

$$

RIZ008-010600-
/O.NEW.KBOX.WW.Y.0008.110201T1100Z-110202T0100Z/
BLOCK ISLAND RI-
INCLUDING THE CITY OF...BLOCK ISLAND
452 PM EST MON JAN 31 2011

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TO 8 PM EST
TUESDAY...

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 AM TO 8 PM
EST TUESDAY.

* LOCATIONS...BLOCK ISLAND.

* HAZARD TYPES...SNOW.

* ACCUMULATIONS...3 TO 6 INCHES OF SNOW.

* TIMING...SNOW WILL OVERSPREAD THIS REGION LATE TONIGHT...LIKELY
  AFFECTING THE TUESDAY MORNING COMMUTE. SNOW CONTINUES THROUGH
  THE DAY...FOLLOWED BY A BRIEF BREAK TUESDAY EVENING. MORE SNOW
  AND SLEET SHOULD THEN ARRIVE LATE TUESDAY NIGHT INTO WEDNESDAY
  BEFORE CHANGING TO ALL RAIN WEDNESDAY AFTERNOON.

* IMPACTS...SNOW ACCUMULATION WILL MAKE TRAVEL ON UNTREATED
  SURFACES SLIPPERY...MAINLY FOR THE AFTERNOON COMMUTE.

* WINDS...NORTHEAST 10 TO 15 MPH.

* TEMPERATURES...IN THE UPPER 20S.

* VISIBILITIES...ONE HALF TO ONE MILE AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY IS ISSUED WHEN SNOW AND/OR ICE IS
FORECAST TO DEVELOP IN THE AFFECTED AREAS...BUT ACCUMULATIONS ARE
EXPECTED TO BE LIGHT. ANY SNOW OR ICE WOULD MAKE DRIVING AND
WALKING DIFFICULT...BUT NOT IMPOSSIBLE...ON UNTREATED ROADWAYS
AND SIDEWALKS.  WHEN TEMPERATURES ARE BELOW FREEZING...MOTORISTS
NEED TO BE ESPECIALLY CAREFUL ON BRIDGES AND OVERPASSES WHERE
SLIPPERY SPOTS CAN EASILY DEVELOP.

&&

$$

BELK

What forecasters said that day

The local office's own words before this winter storm watch 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 winter storm watch went out at Jan 31, 4:10 AM EST, 33 minutes earlier.

Area forecast discussion, Jan 31, 4:10 AM EST, 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
410 AM EST MON JAN 31 2011

.SYNOPSIS...
ARCTIC HIGH PRESSURE WILL PROVIDE COLD AND DRY CONDITIONS TODAY
THROUGH TONIGHT. A WARM FRONT WILL DEVELOP SOUTH OF NEW ENGLAND
TUESDAY...ALLOWING LIGHT TO OCCASIONALLY MODERATE SNOW TO DEVELOP
ACROSS THE AREA. ANOTHER AREA OF LOW PRESSURE WILL TRACK EAST
ALONG THE SOUTHERN COASTAL WATERS WEDNESDAY BRINGING ANOTHER
SIGNIFICANT ROUND OF WINTRY PRECIPITATION. HIGH PRESSURE WILL
SETTLE ACROSS THE AREA IN WAKE OF THE DEPARTING LOW WITH COLD
CONDITIONS THURSDAY NIGHT. ANOTHER COASTAL STORM MAY AFFECT
SOUTHERN NEW ENGLAND ON SATURDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
ARCTIC HIGH PRESSURE CONTINUES TO BUILD FROM SOUTHEASTERN CANADA.
H925 TEMPERATURES FROM -11 TO -13 CELSIUS WITH MIXING NEAR THAT
LEVEL SUPPORTS HIGHS IN THE UPPER TEENS AND 20S ACROSS MUCH OF
THE AREA. WILL NOTE SOME INCREASING HIGH CLOUDS THIS AFTERNOON DUE
PROGRESSIVE W-E FLOW ALOFT.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/...
TONIGHT...
CLOUDS CONTINUE TO LOWER AND THICKEN AS A WARM FRONT BEGINS TO
DEVELOP SOUTH OF NEW ENGLAND. INCREASING WARM AIR ADVECTION AND H85
FRONTOGENETIC FORCING IS EXPECTED TO THE NORTH OF THE WARM FRONT.
NOTING THE ADVANCEMENT OF H925-H85 25-30 KT JETS PROVIDING
INCREASING LOW LEVEL MOISTURE CONVERGENCE AND LIFT APPROACHING 12Z
TUESDAY. IT WILL TAKE SOME TIME FOR THE LOWER LEVELS TO MOISTEN BUT
SHOULD NOTE SOME LIGHT SNOW OF FLURRIES BREAKING OUT ACROSS
CONNECTICUT...WESTERN MASSACHUSETTS AND WESTERN RHODE ISLAND LATE.

TUESDAY...
SHOULD NOTE LIGHT SNOW OVERSPREADING THE AREA BY THE MORNING
COMMUTE ACROSS THE WEST AND BY LATE MORNING ACROSS THE EAST...
PERHAPS BRIEFLY MODERATE AT TIMES MIDDAY THROUGH THE AFTERNOON.
THERMAL PROFILES REMAIN COLD ENOUGH TO SUPPORT SNOW ACROSS THE
FORECAST AREA AS WARM AIR ADVECTION CONTINUES VIA H925-H85
SOUTHWESTERLY JET MAXIMA. DO NOTE DECENT OMEGA...BUT GENERALLY
BELOW  THE SNOW GROWTH REGION ON THE ORDER OF 5 TO 10 MICROBARS
PER SECOND ON THE 00Z GFS...10 TO 15 MICROBARS ACCORDING TO THE MORE
PROLIFIC 00Z NAM. PREFERRED THE 00Z GFS SOLUTION AS THE 00Z NAM
MASS FIELDS DID NOT MAKE QUITE QUITE AS MUCH SENSE IN TERMS OF
QPF AMOUNTS.

LIQUID QPF AMOUNTS VARY FROM 0.25 TO 0.40 INCH ON THE 00Z GFS AND
0.30 TO 0.50 INCH ACCORDING TO THE 00Z NAM. GENERALLY LOOKING AT A
12-15 TO 1 SNOW TO LIQUID RATIO WHICH SHOULD BRING WIDESPREAD 3 TO 6
INCH SNOW AMOUNTS ACROSS THE AREA. BEST LIFT IS EXPECTED TO DIMINISH
SOON AFTER 00Z BUT PICK UP AGAIN LATE TUESDAY NIGHT ACROSS WESTERN
NEW ENGLAND.

PER COLLABORATION WITH UPSTREAM OFFICES AND BASED ON MEETING WINTER
WEATHER CRITERIA...HAVE ELECTED TO ISSUE A WINTER STORM WATCH
TUESDAY THROUGH WEDNESDAY NIGHT FOR MUCH OF THE AREA...VERSUS AN
ADVISORY TUESDAY AND WATCH FOR WEDNESDAY...AS THE LULL IN
PRECIPITATION INTENSITY TUESDAY NIGHT IS EXPECTED TO BE BRIEF.
THE WATCH WILL LIKELY BE EXPANDED NORTH INTO NEW HAMPSHIRE THIS
AFTERNOON...GIVEN CRITERIA THERE IS NOT EXPECTED TO BE MET THERE
UNTIL LATE 4TH OR 5TH PERIOD. WILL HIGHLIGHT POTENTIAL EFFECTS AND
NOTE IMPACTS OF THIS TWO PART SYSTEM IN THE WATCH STATEMENT. THE
WATCH MAY BE EXPANDED CLOSER TO THE SOUTH COAST AS WELL...ALTHOUGH
WARMER AIR IS EXPECTED TO CUT DOWN ON SNOW AND ICE ACCUMULATIONS.

&&

.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
TUESDAY NIGHT-WEDNESDAY...
THE FIRST PHASE OF THE PRECIPITATION SHOULD WIND DOWN BY THE EVENING
AS THE ASSOCIATED LIFT MOVES OFF TO THE EAST.  DEEP MOISTURE AND
WEAK LIFT REMAIN THROUGH THE EVENING.  FORECAST DATA FROM THE
DENDRITE LEVEL OF THE ATMOSPHERE SHOWS INCREASING LIFT ONCE AGAIN
AFTER 06Z ESPECIALLY IN CT AND WESTERN MA. THIS WILL BE DRIVEN
DYNAMICALLY BY THE APPROACH OF THE MAIN SYSTEM FROM THE OHIO VALLEY
AND ITS SUPPORTING 150 KNOT UPPER JET.  THIS WILL ALSO BE DRIVEN
ISENTROPICALLY BY A STRONG 60-70 KNOT LOW LEVEL SOUTHERLY JET RIDING
UP OVER THE COLDER AIR AT THE SURFACE. THIS CONTINUES INTO AT LEAST
THE EARLY AFTERNOON BEFORE DIMINISHING TOWARD EVENING.  THE STRONG
LOW LEVEL WINDS WILL ALSO TRANSPORT ABOVE-FREEZING AIR OVER THE TOP
OF THE COLDER SURFACE AIR...MELTING THE FALLING PRECIPITATION AND
TURNING IT INTO SLEET OR FREEZING RAIN. SURFACE TEMPS THEN CLIMB
ABOVE FREEZING WEDNESDAY IN PARTS OF RI AND SOUTHEAST MASS...WHICH
WOULD FAVOR RAIN IN THOSE AREAS.

ALL MODELS BRING LOW PRESSURE...EITHER THE PRIMARY OR /MORE LIKELY/
A COASTAL REDEVELOPMENT...SOUTH OF NEW ENGLAND WEDNESDAY AFTERNOON
AND EVENING.  THE GGEM WAS FARTHEST NORTH AND THE NAM FARTHEST SOUTH
WITH THE STORM TRACK. WE FAVORED THE GFS BUT WITH SOME MODULATION
FROM THE NAM.

WE WILL BACK POPS OFF DURING EARLY TUESDAY NIGHT...THEN RETURN TO
CATEGORICAL POPS AFTER MIDNIGHT AND KEEP THEM GOING THROUGH MOST OF
WEDNESDAY.  PRECIP TYPES ARE BASED ON THE GFS THERMAL PROFILES.
THIS FAVORS A CHANGE TO FREEZING RAIN/SLEET SOUTH OF THE MASS PIKE
LATE TUESDAY NIGHT...THEN WEDNESDAY FREEZING RAIN INLAND AND RAIN IN
PARTS OF RI AND SOUTHEAST MASS.

THE SURFACE LOW MOVES NORTHEAST WEDNESDAY NIGHT AND PASSES SOUTH OF
NOVA SCOTIA.  THE UPPER TROF LINGERS OVER NEW ENGLAND DURING THE
NIGHT...SO WE SLOWLY BROUGHT POPS DOWN TO CHANCE LEVELS AFTER
MIDNIGHT.

THURSDAY-FRIDAY...
THE LAST NORTHERN STREAM SHORTWAVE MOVES ACROSS SOUTHERN NEW ENGLAND
THURSDAY MORNING.  SURFACE HIGH PRESSURE THEN BUILDS IN.  SO WE
WOULD EXPECT A FEW LINGERING CLOUDS AND SCATTERED SNOW SHOWERS
MAINLY IN EASTERN MASS THURSDAY MORNING.  OTHERWISE CLEARING AND DRY
WEATHER FOR THURSDAY AND FRIDAY.  THE AIRMASS INITIALLY COOLS
THURSDAY WITH 925 MB TEMPS AT -10C TO -12C SUPPORTING MAX TEMPS IN
THE 20S.  THE AIRMASS THEN MODERATES FRIDAY WITH 925 MB TEMPS -6C TO
-8C SUPPORTING MAX TEMPS IN THE UPPER 20S TO MID 30S.

SATURDAY...
NO REST FOR THE WEARY.  ANOTHER SYSTEM BURSTS OUT OF THE GULF OF
MEXICO AND UP THE EAST COAST.  BOTH THE GFS AND EC OPERATIONAL RUNS
AGREE ON THE SURFACE LOW MOVING PAST NEW ENGLAND SATURDAY
AFTERNOON/EARLY NIGHT WITH A FEW DIFFERENCES IN TRACK AND TIMING
DETAILS.  THE GFS IS FASTEST AND DEEPEST...AND SHOWS A PRESSURE FALL
OF 24 MB PER 24 HOURS FROM 12Z SAT TO 12Z SUN.  BOTH GFS AND ECMWF
THERMAL PROFILES WOULD BE MAINLY SNOW...WITH POTENTIAL FOR RAIN/SNOW
MIX ACROSS THE ISLANDS.

OF COURSE...THIS IS A DAY SIX FORECAST SO EXPECT CHANGES AS THE
EVENT GETS CLOSER. FOR NOW THERE SEEMS ENOUGH AGREEMENT ON A SYSTEM
CLOSE ENOUGH TO AFFECT MOST OR ALL OF OUR AREA SO THAT WE WILL
MENTION CHANCE POPS IN ALL OF SOUTHERN NEW ENGLAND.  HIGHEST POPS
WILL BE ON THE CAPE AND ISLANDS AND LOWEST POPS AT CHESHIRE AND
FRANKLIN CO/S.  WE WILL USE A BLEND OF GFS AND ECMWF THERMAL
PROFILES TO GENERATE P-TYPES.

SUNDAY...
HIGH PRESSURE BUILDS OVERHEAD WITH MARGINAL COOLING OF THE AIRMASS.
EXPECT FAIR/DRY WEATHER WITH SEASONABLE TEMPERATURES.

&&

.AVIATION /09Z MONDAY THROUGH FRIDAY/...
FORECASTER CONFIDENCE LEVELS...
  LOW...LESS THAN 30 PERCENT
  MEDIUM...30 PERCENT TO 60 PERCENT
  HIGH...GREATER THAN 60 PERCENT

TODAY...HIGH CONFIDENCE VFR.

TONIGHT...VFR MUCH OF TONIGHT...CHANCE MVFR CEILINGS AND VSBYS
TOWARDS DAYBREAK ACROSS CONNECTICUT...WESTERN MASSACHUSETTS AND
RHODE ISLAND AS LIGHT SNOW OR FLURRIES DEVELOP.

TUESDAY...MVFR CEILINGS AND VSBYS QUICKLY OVERSPREADING THE AREA
IN THE MORNING WITH IFR/LIFR CEILINGS AND VSBYS BY LATE MORNING
WESTERN TERMINALS AND DURING THE AFTERNOON EASTERN TERMINALS. LIGHT
SNOW WILL BE OCCASIONALLY MODERATE IN INTESITY. ACCUMULATIONS BY
00Z WEDNESDAY GENERALLY RANGING FROM 3 TO 6 INCHES MOST AREAS.

KBOS TERMINAL...HIGH CONFIDENCE IN TAF. VFR CEILINGS AND VSBYS
PREVAILING TODAY.

OUTLOOK...TUESDAY NIGHT THROUGH FRIDAY...

TUESDAY NIGHT THROUGH WEDNESDAY...IFR IN LOW CEILINGS AND
RAIN/FREEZING RAIN/SLEET SOUTH OF BOS-ORH-BAF AND SNOW OR A
SNOW-SLEET MIX NORTH OF BOS-ORH-BAF.  POCKETS OF MVFR POSSIBLE IN
THE CT VALLEY.

THE STORM WILL BRING STRONG SOUTH WINDS UP THE COAST AT 2000-3000
FEET. THESE WINDS MAY BE MOST NOTICEABLE WEDNESDAY WITH LOW LEVEL
WIND SHEAR POSSIBLE AT PVD-FMH-HYA-ACK.

MEDIUM CONFIDENCE IN THE TUESDAY NIGHT-WEDNESDAY FORECAST.

THURSDAY...MVFR ON CAPE AND ISLANDS IN THE MORNING FOR LOW CEILINGS
AND SNOW SHOWERS. CONDITIONS IMPROVING ALL AREAS TO VFR.  MEDIUM
CONFIDENCE.

FRIDAY...VFR.  HIGH CONFIDENCE.

&&

.MARINE...
TODAY...MARGINAL SMALL CRAFT ADVISORY SEAS THIS MORNING EASTERN
WATERS. NW WINDS 15 TO 20 KT WITH A FEW GUSTS TO 25 KT...DIMINISHING
BY AFTERNOON. SEAS 3 TO 5 FT ACROSS THE OUTER EASTERN COASTAL WATERS
SUBSIDING BY AFTERNOON. LIGHT FREEZING SPRAY EASTERN OUTER WATERS
THIS MORNING.

TONIGHT...WINDS AND SEAS EXPECTED TO REMAIN BELOW SMALL CRAFT
ADVISORY CRITERIA. LIGHT WINDS AND SEAS 1 TO 3 FT.

TUESDAY...WINDS AND SEAS EXPECTED TO REMAIN BELOW SMALL CRAFT
ADVISORY CRITERIA. EAST WINDS INCREASING TO 15 TO 20 KT IN THE
AFTERNOON ALONG THE SOUTH COAST. SEAS BUILDING TO 2 TO 4 FT.

OUTLOOK...TUESDAY NIGHT THROUGH FRIDAY...

WINDS AND SEAS INCREASE TO AT LEAST SMALL CRAFT LEVELS TUESDAY NIGHT
AFTER MIDNIGHT...AND CONTINUE THAT WAY THROUGH THURSDAY EVENING.
STRONG PRESSURE RISES EXPECTED WEDENSDAY NIGHT AS THE CENTER OF LOW
PRESSURE MOVES OFF TOWARD NOVA SCOTIA...THIS WILL DRIVE STRONG NORTH
TO NORTHWEST WINDS WITH GALES LIKELY ESPECIALLY ON THE EASTERN
WATERS.

WINDS AND SEAS DIMINISH THURSDAY NIGHT.  WEST SOUTHWEST GUSTS TO 25
KNOTS ARE POSSIBLE ON FRIDAY.

&&

.CLIMATE...
JANUARY 2011 SNOW TOTALS THROUGH 1/30

BOS 38.3 INCHES 3RD SNOWIEST JANUARY...RECORD IS 43.1 INCHES 2005

PVD 30.7 INCHES 4TH SNOWIEST JANUARY...RECORD IS 37.4 INCHES 1996

BDL 57.0 INCHES SNOWIEST JANUARY ON RECORD BEATING 43.1 INCHES
1996 ALSO SNOWIEST MONTH OF ANY MONTH BEATING 45.3 INCHES IN 1945

ORH 48.4 INCHES 2ND SNOWIEST JANUARY ON RECORD...JAN 2005 50.9
INCHES

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...WINTER STORM WATCH FROM TUESDAY MORNING THROUGH LATE WEDNESDAY
     NIGHT FOR CTZ002>004.
MA...WINTER STORM WATCH FROM TUESDAY MORNING THROUGH LATE WEDNESDAY
     NIGHT FOR MAZ002>019-026.
NH...NONE.
RI...WINTER STORM WATCH FROM TUESDAY MORNING THROUGH LATE WEDNESDAY
     NIGHT FOR RIZ001>003.
MARINE...SMALL CRAFT ADVISORY UNTIL 10 AM EST THIS MORNING FOR ANZ250-
     254.

&&

SYNOPSIS...WTB
NEAR TERM...STRAUSS
SHORT TERM...STRAUSS
LONG TERM...WTB
AVIATION...WTB/STRAUSS
MARINE...WTB/STRAUSS
CLIMATE...STRAUSS
Hazardous weather outlook, Jan 30, 5:14 PM EST, 11 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAUNTON MA
514 PM EST SUN JAN 30 2011

CTZ002>004-MAZ002>024-026-NHZ011-012-015-RIZ001>008-312215-
HARTFORD CT-TOLLAND CT-WINDHAM CT-WESTERN FRANKLIN MA-
EASTERN FRANKLIN MA-NORTHERN WORCESTER MA-CENTRAL MIDDLESEX MA-
WESTERN ESSEX MA-EASTERN ESSEX MA-WESTERN HAMPSHIRE MA-
WESTERN HAMPDEN 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-BARNSTABLE MA-DUKES MA-NANTUCKET 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-BLOCK ISLAND RI-
514 PM EST SUN JAN 30 2011

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

ANOTHER WINTER STORM WILL IMPACT SOUTHERN NEW ENGLAND TUESDAY
INTO WEDNESDAY. THE FIRST PART OF THE STORM WILL COME ON TUESDAY
MAINLY IN THE FORM OF SNOW AND RESULTING IN SEVERAL INCHES OF
ACCUMULATION. THERE IS THE POSSIBILITY FOR LOCALES ALONG THE
SHORELINE...ESPECIALLY THE CAPE AND ISLANDS...TO SEE A TRANSITION
TO A WINTRY MIX TUESDAY NIGHT.

THE SECOND PART OF THE STORM WILL IMPACT THE REGION MIDNIGHT
WEDNESDAY INTO WEDNESDAY NIGHT. SNOW WILL CONTINUE MAINLY FOR
LOCALES ALONG A LINE FROM NORTHERN HAMPSHIRE COUNTY MASSACHUSETTS
TO NORTHERN ESSEX COUNTY MASSACHUSETTS. LOCALES SOUTH OF THIS LINE
TO THE VICINITY OF THE I-84 CORRIDOR WILL SEE THE POTENTIAL OF A
SIGNIFICANT ICING EVENT AS A WINTRY MIX OF SNOW...SLEET...AND
FREEZING RAIN IS TO BE EXPECTED. FURTHER SOUTH AND TO THE
SHORELINE ANY WINTRY PRECIPITATION IS EXPECTED TO TRANSITION TO A
PLAIN RAIN EVENT. STRONG AND GUSTY WINDS CAN ALSO BE EXPECTED WITH
THE PASSAGE OF THE STORM.

WEDNESDAY NIGHT ANY AND ALL PRECIPITATION SHOULD CHANGE OVER TO
SNOW AND TAPER OFF INTO MORNING. STRONG NORTH WINDS SHOULD
CONTINUE AND DISSIPATE INTO THURSDAY EVENING.

COLDER AIR WILL BEGIN TO INFILTRATE THE REGION LENDING TO VERY
COLD WIND CHILL VALUES FOR SOUTHERN NEW HAMPSHIRE AND NORTHERN
MASSACHUSETTS THURSDAY NIGHT INTO FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

ANZ230>237-250-251-254>256-312215-
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-
514 PM EST SUN JAN 30 2011

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

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THERE IS A LOW TO MEDIUM PROBABILITY FOR GALE FORCE WIND GUSTS
FROM THE NORTH LATE WEDNESDAY INTO THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 31, 10:04 AM ESTSmall Craft AdvisoryBOX6 hr
Jan 31, 4:52 PM ESTWinter Storm WarningBOXBristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more45 hr
Jan 31, 4:52 PM ESTWinter Weather AdvisoryBOXBarnstable, Bristol, Norfolk, Plymouth42 hr

Nearby

Winter Storm Watches in Massachusetts, 2011Winter Storm Watches in Rhode Island, 2011Winter Storm Watches in Connecticut, 2011Every winter storm watch in 2011

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.