Woburn Weather Center  37.4°F

Area Forecast Discussion
National Weather Service Boston/Norton MA
342 AM EDT Thu Apr 3 2025

SYNOPSIS
A warm front will bring showers this morning followed by windy and
milder conditions this afternoon. A cold front will push southward
across the region tonight and may lead to a few showers, especially
south of the Mass Pike which may linger along the south coast early
Friday. High pressure brings drier and mild conditions Friday.
Turning much cooler Saturday with showers returning as a frontal
system approaches, then milder Sunday with continued unsettled
conditions. Drying out Monday as the frontal system exits the region
followed by cooler than normal temperatures overspreading the area
much of next week.

.NEAR TERM /UNTIL 6 AM THIS MORNING/...
Key Messages:

* Showers this morning with brief downpours possible

* Windy and milder this afternoon. A few gusts to 40 mph possible

Showers assocd with forcing ahead of the warm front moving across
northern and eastern MA early this morning. Will see a temporary
lull before additional showers develop. Mid level shortwave crosses
the region this morning. Deep moisture plume combined with marginal
elevated instability will result in numerous showers redeveloping
and moving across SNE this morning, initially across the interior
before shifting to the south coast late morning and early afternoon.
The instability aloft has produced some lightning to the NW so can`t
rule out an isolated rumble of thunder and a few showers may contain
brief downpours given PWATs approaching 1.5".

We should see somewhat of a drying trend this afternoon with
decreasing coverage of showers as the shortwave exits and some
drying moves in aloft. The warm front will be lifting northward
across the region by afternoon with increasing SW flow bringing
milder air northward into SNE as 925 mb temps increase to 14-16C.
Normally this would support temps well into the 70s but cloud cover
and shallow mixed layer will limit how warm it gets. We should see
temps rise into the 60s away from the south coast, with the chance
of a few locations in the CT valley could reach 70+. 75th percentile
of NBM has highs near 70 in the CT valley and interior NE MA but
confidence is low due to cloud cover. Expect cooler 50s along the
immediate south coast.

It will become windy later this morning and afternoon as warm sector
overspreads the region. We have a 55-65 kt low level jet across
eastern half SNE. Inversion will limit how strong gusts will get,
but warming temps this afternoon will help to weaken the inversion
and support gusts to 30-40 mph.

.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM FRIDAY/...
Key Messages:

* A few showers tonight, especially south of MA Pike

* Increasing sunshine from north to south Fri with above normal temps

Northern stream shortwave moving across eastern Canada will push a
cold front southward into SNE tonight and can`t rule out a few spot
showers. There is an increase in elevated instability from the SW
which moves into the region in the evening which may result in a few
convective showers near the south coast this evening. The
instability moves to the south overnight, but developing deeper
moisture axis sets up near the south coast ahead of the front with
PWATs near 1.5", so may see a few additional showers develop near
the south coast late tonight into early Friday. Where these showers
set up is uncertain and could end further north or south.

Good drying trend for Friday as much drier air moves southward
across the region with PWATs falling to 0.25-0.50". There is a low
risk a few showers could linger near the south coast early Fri,
otherwise clouds will give way to increasing sunshine from N to S.
It may take until the afternoon for sunshine to develop near the
south coast. It will be a mild day with highs in the 60s and modest
NW breezes 10-20 mph.

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
Long Term

Key Messages

* Cooler on Saturday followed by increasing warmth and shower
  chances Saturday night into Sunday

* Unsettled early next week with seasonable temperatures

Saturday through Sunday night.

High pressure builds north and east of southern New England Friday
night into Saturday. This will allow a backdoor cold front to advect
cooler air into the region with 925 hPa temps dipping near the
freezing mark by Saturday morning. This will support a cool/raw day
with highs peaking in the mid to upper 40s for much of southern New
England. Saturday will as mark the beginning of a wet/unsettled
period for the forecast area that will carry into next week. As the
aforementioned area of high pressure continues to shift east, return
flow from the south will support WAA driven showers over southern
New England likely beginning Saturday afternoon. Expect
precipitation to persist through Sunday as the associated low-
pressure system traverses over The Northeast Saturday night through
Sunday evening.

As warm sector air lifts over the region on Sunday, 925 hPa temps
rise dramatically to the 15 to 20C range. So while Sunday is
expected to be wet/rainy, it will also be on the warm/humid side
with temperatures in the low to mid 60s and dewpoints in the 50s.
Ensemble mean precipitation forecasts for Saturday afternoon through
Sunday night are ranging from 0.75 to 1 inch across southern New
England. Some of this precip may come in the form of convective
showers Sunday night as the associated cold front drives the warm
sector air out of the region. Model derived CAPE values are
unimpressive at this time, but with ensemble mean SBCAPE values
around 250 J/kg, a few showers could have a rumble of thunder,
particularly along the south coast.

Monday through Wednesday

Showers associated with a passing cold front exit off the east coast
early Monday. Despite the dry/northwest flow that will follow,
unsettled weather looks to continue Monday and Tuesday as a second
pulse of short-wave energy digs east over The Midwest toward
southern New England. Moisture will be lacking, so while we aren`t
anticipating any substantial precipitation from this short-wave, we
do expect more clouds than sun with some sporadic showers.
Temperatures looks to be seasonable with ensemble means supporting
highs/lows in the upper 40s to 50s and mid to upper 30s respectively
Monday and Tuesday. Details become vague as we reach the middle of
next week, but there is strong support from ensembles for below
normal temperatures as a broad upper-level trough is expected to
bring a surge of cooler air to the Northeast for the middle of
next week.

.AVIATION /08Z THURSDAY THROUGH MONDAY/...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

06Z update

Through 12Z...High Confidence

Ceilings continue to fall to MVFR/IFR by 12Z with -SHRA and
steady south/southeast winds from 10 to 15 knots.

Today...Moderate Confidence.

Mainly IFR/MVFR with -SHRA in the morning becoming more spotty
in the afternoon. Areas of LIFR fog developing along the south
coast mid-late afternoon. Increasing SW winds with gusts to
25-35 kt developing.

Tonight...Moderate Confidence.

IFR/MVFR improving to VFR from NW to SE with passage of a cold
front. LIFR fog near the south coast improving overnight.

Friday... High Confidence

VFR. West/northwest winds 10-20 kt.

BOS TAF...Moderate confidence.

BDL TAF...Moderate confidence.

Outlook /Friday Night through Monday/...

Friday Night: Mainly VFR, with local MVFR possible.

Saturday: Mainly MVFR, with local IFR possible. Breezy. SHRA.

Saturday Night: Mainly MVFR, with areas IFR possible. Breezy.
SHRA.

Sunday: Mainly MVFR, with local IFR possible. Breezy. Chance
SHRA.

Sunday Night: Mainly MVFR, with local IFR possible. Breezy.
SHRA likely.

Monday: Mainly MVFR, with local IFR possible. Chance SHRA.

.MARINE...
Forecaster Confidence Levels:

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

Through tonight...High confidence.

Gusty SW winds today with low level jet over the waters. Gusts to 25-
35 kt with strongest gusts over nearshore waters. A few marginal
gale force gusts possible. Winds diminish tonight and shift to NW
late tonight. Seas build to 7-9 ft over the outer waters. Occasional
showers with areas of dense fog developing this afternoon into this
evening with poor vsbys, improving late tonight.

Friday...High confidence.

W-NW winds 10-20 kt with subsiding seas. Scattered showers
possible over southern waters early.

Outlook /Friday Night through Monday/...

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

Saturday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of rain showers.

Saturday Night: Winds less than 25 kt. Seas up to 5 ft. Rain
showers.

Sunday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of rough seas. Chance of rain showers.

Sunday Night: Winds less than 25 kt. Areas of rough seas. Rain
showers likely.

Monday: Winds less than 25 kt. Areas of rough seas. Chance of
rain showers.

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 8 AM this morning to 10 PM EDT this
     evening for ANZ230.
     Small Craft Advisory until midnight EDT tonight for ANZ231-251.
     Small Craft Advisory until 2 AM EDT Friday for ANZ232>234.
     Small Craft Advisory until 8 AM EDT Friday for ANZ235-237.
     Small Craft Advisory until 10 PM EDT this evening for ANZ236.
     Small Craft Advisory until 5 AM EDT Friday for ANZ250.
     Small Craft Advisory until 2 PM EDT Friday for ANZ254>256.

SYNOPSIS...KJC/RM
NEAR TERM...KJC
SHORT TERM...KJC
LONG TERM...RM
AVIATION...KJC/RM
MARINE...KJC/RM          

Zone Forecast Product for Southern New England
National Weather Service Boston/Norton MA
403 AM EDT Thu Apr 3 2025

Forecast Synopsis
A warm front will bring showers this morning followed by windy and
milder conditions this afternoon. A cold front will push southward
across the region tonight and may lead to a few showers, especially
south of the Mass Pike which may linger along the south coast early
Friday. High pressure brings drier and mild conditions Friday.
Turning much cooler Saturday with showers returning as a frontal
system approaches, then milder Sunday with continued unsettled
conditions. Drying out Monday as the frontal system exits the region
followed by cooler than normal temperatures overspreading the area
much of next week.

Southeast Middlesex MA-
Including the city of Cambridge
403 AM EDT Thu Apr 3 2025

.TODAY...Cloudy. Showers likely, mainly this morning. Not as cool
with highs in the mid 60s. South winds 10 to 15 mph with gusts up
to 30 mph. Chance of rain 70 percent.
.TONIGHT...Mostly cloudy. A slight chance of showers in the
evening. Not as cool with lows in the lower 50s. Southwest winds
10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain
20 percent.
.FRIDAY...Mostly cloudy in the morning, then becoming mostly
sunny. Highs in the mid 60s. Northwest winds 5 to 10 mph with
gusts up to 20 mph.
.FRIDAY NIGHT...Partly cloudy. Cooler with lows in the lower 40s.
Northwest winds 5 to 10 mph, becoming north after midnight.
.SATURDAY...Showers. Much cooler. Near steady temperature in the
lower 40s. East winds 5 to 10 mph. Chance of rain 80 percent.
.SATURDAY NIGHT...Showers. Near steady temperature in the lower
40s. Chance of rain 90 percent.
.SUNDAY...Showers likely. Not as cool with highs in the mid 60s.
Chance of rain 60 percent.
.SUNDAY NIGHT...Showers likely. Lows in the lower 40s. Chance of
rain 70 percent.
.MONDAY...Showers likely. Cooler with highs in the lower 50s.
Chance of rain 60 percent.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows in the upper 30s.
Highs in the upper 40s.
.TUESDAY NIGHT...Partly cloudy. Lows around 30.
.WEDNESDAY...Sunny. Highs in the upper 40s.          

REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
500 AM EDT THU APR 03 2025

NOTE:  "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

MAZALL-031000-
EASTERN MASSACHUSETTS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BOSTON         LGT RAIN  38  35  89 SE14      30.31F WCI  30
BEVERLY        LGT RAIN  37  35  92 SE13G21   30.30F WCI  29
LAWRENCE       CLOUDY    36  34  92 SE6       30.31F WCI  31
BEDFORD        LGT RAIN  37  34  89 SE7       30.29F WCI  32
NORWOOD        CLOUDY    39  35  86 SE5       30.30F
MARSHFIELD     CLOUDY    39  36  87 SE12G22   30.31F WCI  32
PLYMOUTH       CLOUDY    38  36  92 SE8       30.30F
TAUNTON        CLOUDY    39  37  92 SE5       30.30F
NEW BEDFORD    CLOUDY    43  38  82 SE13      30.30F


MAZALL-031000-
CAPE COD AND THE ISLANDS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
FALMOUTH       CLOUDY    39  37  93 SE17      30.32F WCI  30
HYANNIS        CLOUDY    39  37  92 SE9G20    30.32F
CHATHAM        CLOUDY    41  35  79 SE9G18    30.36F
PROVINCETOWN   LGT RAIN  38  37  97 SE12G20   30.34F WCI  30
NANTUCKET      CLOUDY    42  36  79 MISG        N/A
MARTHAS VNYRD  CLOUDY    43  36  76 SE14G23   30.33F


MAZALL-031000-
CENTRAL AND WESTERN MASSACHUSETTS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WORCESTER      MIX PCPN  35  35 100 SE13      30.24F FOG     WCI  26
FITCHBURG      LGT SNOW  36  34  92 SE6       30.28F FOG     WCI  31
ORANGE         CLOUDY    36  35  96 S5        30.24F FOG
SPRINGFIELD    CLOUDY    38  37  94 CALM      30.22F FOG
WESTFIELD      LGT RAIN  38  37  97 S5        30.23F FOG
NORTH ADAMS    CLOUDY   N/A N/A N/A E16G29    30.16F HAZE
PITTSFIELD     CLOUDY    37  35  92 SE14      30.14F FOG     WCI  28


RIZALL-031000-
RHODE ISLAND

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PROVIDENCE     CLOUDY    41  37  86 SE13G24   30.30F
NEWPORT        CLOUDY    42  37  82 SE14G26   30.29F
BLOCK ISLAND   CLOUDY    42  39  89 SE14G21   30.30F
SMITHFIELD     CLOUDY    38  38 100 VRB7      30.28F
WESTERLY       CLOUDY    43  38  82 SE12      30.30F


CTZALL-031000-
CONNECTICUT

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BRADLEY INTL   DRZL/FOG  39  39 100 SE5       30.24F VSB 1
HARTFORD       CLOUDY    41  40  96 S7        30.25F FOG
PLAINVILLE     LGT RAIN  41  41 100 CALM      30.23F FOG
BRIDGEPORT     LGT RAIN  44  42  93 E7        30.24F FOG
DANBURY        LGT RAIN  43  39  86 SE7       30.22F FOG
GROTON         CLOUDY    43  41  93 SE14      30.28F
NEW HAVEN      CLOUDY    46  44  93 SE12      30.24F FOG
CHESTER        MIX PCPN  43  43 100 SE10G16   30.25F
MERIDEN        LGT RAIN  44  39  82 S3        30.25F
WILLIMANTIC    CLOUDY    39  38  96 S5        30.28F FOG
OXFORD         LGT RAIN  40  40 100 SE10G18   30.21F


MEZ002-015-021-024-NHZ003-005-008-011-012-014-VTZ005-008-031000-
NORTHERN NEW ENGLAND

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PORTLAND ME    CLOUDY    36  34  92 S6        30.35F WCI  31
BANGOR ME      CLOUDY    33  24  69 SE10      30.36F WCI  25
CONCORD NH     RAIN      33  32  96 SE8       30.29F FOG     WCI  26
MANCHESTER NH  RAIN      37  33  85 SE12      30.28F FOG     WCI  29
NASHUA NH      LGT RAIN  36  34  92 SE9       30.29F FOG     WCI  29
PORTSMOUTH NH  LGT RAIN  37  34  91 S10       30.31F WCI  29
JAFFREY NH     CLOUDY    33  32  96 S10G18    30.22F FOG     WCI  25
KEENE NH       MIX PCPN  35  34  96 CALM      30.24F FOG
BURLINGTON VT  RAIN      40  36  86 S17G32    30.05F WCI  31
MT. WASHINGTON LGTSLEET  27  27 100 SW56G79     N/A  VSB 0   WCI   6


NYZ052-076-031000-
EASTERN NEW YORK

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALBANY         CLOUDY    42  38  85 S20G33    30.09F
NEW YORK CITY  LGT RAIN  46  42  86 E7        30.21F FOG


ANZALL-031000-
MARINE OBSERVATIONS

STATION/POSITION TIME  TEMP    WIND        PRES    VSBY  WAVE
                       AIR SEA DIR/SP/G                  HT/PER
                 (UTC) (F)     (DEG/KT/KT) (MB)    (MI)  (FT/S)
BOSTON BUOY      0840   39 41  140/ 17/ 21 1027.3F
BUZZARDS BAY     0800          140/ 25/ 26 1027.1F
NANTUCKET SOUND  0840   42 44  150/ 17/ 21 1027.1F
MASS BAY-STELLWA 0704   39     160/ 19/ 25 1027.7F  1 7/8  3/ 4
ISLE OF SHOALS   0800   37     170/ 23/ 25 1027.5F
S OF BLOCK IS    0856      42                N/A           5/ 6


......................KEY.........................
  SKY/WX - SKY CONDITION/PRESENT WEATHER
  TMP    - TEMPERATURE IN FAHRENHEIT
  DWPT   - DEWPOINT IN FAHRENHEIT
  RH     - RELATIVE HUMIDITY IN PERCENT
  WIND   - DIRECTION AND SPEED IN MPH
  PRES   - MEAN SEA LEVEL PRESSURE IN INCHES OF HG
  WCI    - WIND CHILL INDEX
  VSB    - VISIBILITY IN MILES
  HX     - HEAT INDEX
  TC     - TEMPERATURE IN CELSIUS
  VRB    - VARIABLE WIND DIRECTION
  N/A    - NOT AVAILABLE          

Max/Min Temperature and Precipitation Table for
Most of Southern New England
National Weather Service Boston/Norton MA
820 PM EDT Wed Apr 2 2025

This is an automated product. These data are preliminary and have
not undergone final quality control by the National Centers for
Environmental Information (NCEI). Therefore, these data are subject
to revision. Final and certified climate data can be accessed at
www.ncei.noaa.gov.

Values represent lows over the last 18 hours, highs over the last
18 hours and precipitation over the last 24 hours.

.BR BOX  0402 ES DH19/TAIRZS/TAIRZI/PPDRZZ

                           Max        Min         24-Hour
ID         Location        Temp       Temp     Precipitation

Eastern Massachusetts...
 BED        Bedford        44    /    29    /    0.00
 BVY        Beverly        39    /    29    /    0.00
 BOS        Boston         39    /    31    /    0.00
 LWM       Lawrence        44    /    30    /    0.00
 EWB      New Bedford      46    /    31    /    0.00
 OWD        Norwood        46    /    32    /    0.00
 PYM       Plymouth        42    /    29    /    0.00
 GHG      Marshfield       39    /    32    /

Cape Cod and the Islands...
 CQX        Chatham        41    /    35    /    0.00
 HYA        Hyannis        41    /    33    /    0.00
 MVY   Marthas Vineyard    45    /    32    /    0.00
 ACK       Nantucket       43    /    35    /    0.00
 FMH       Falmouth        43    /    28    /
 PVC     Provincetown      39    /    34    /

Central and Western Massachusetts...
 FIT       Fitchburg       48    /    29    /    0.00
 ORE        Orange         47    /    27    /    0.00
 CEF      Springfield      50    /    31    /      T
 BAF       Westfield       49    /    29    /      T
 ORH       Worcester       45    /    26    /    0.00

Rhode Island...
 BID     Block Island      42    /    33    /
 SFZ      Smithfield       49    /    27    /
 UUU        Newport        45    /    32    /    0.00
 PVD      Providence       47    /    34    /    0.00
 WST       Westerly        42    /    30    /    0.00

Northern Connecticut...
 BDL   Hartford-Bradley    50    /    29    /      T
 HFD       Hartford        50    /    30    /    0.00
 IJD      Willimantic      49    /    27    /    0.00