Alert archive / Massachusetts / Gale Warnings in 2024

Gale Warning 34, NWS Boston/Norton, MA

December 20, 2024

NWS Boston/Norton, MA issued this gale warning at Dec 20, 2024, 9:36 PM EST. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 20, 2024, 9:36 PM EST (02:36 UTC)
Expired
Dec 21, 2024, 3:51 AM EST
In force
6 hr
Issued by
NWS Boston/Norton, MA

The text

As transmitted.

607 
WHUS71 KBOX 210236
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
936 PM EST Fri Dec 20 2024

ANZ254-255-211545-
/O.UPG.KBOX.SC.Y.0112.000000T0000Z-241223T0000Z/
/O.NEW.KBOX.GL.W.0034.241221T0236Z-241221T0900Z/
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-
936 PM EST Fri Dec 20 2024

...GALE WARNING IN EFFECT UNTIL 4 AM EST SATURDAY...

* WHAT...North winds 25 to 30 kt with gusts up to 40 kt and seas 
  7 to 10 feet.

* WHERE...Coastal waters from Provincetown MA to Chatham MA to 
  Nantucket MA out 20 nm and Coastal Waters extending out to 25 
  nm South of Marthas Vineyard and Nantucket.

* WHEN...Until 4 AM EST Saturday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

&&

$$

ANZ230-210900-
/O.EXB.KBOX.SC.Y.0112.000000T0000Z-241221T0900Z/
Boston Harbor-
936 PM EST Fri Dec 20 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST SATURDAY...

* WHAT...North winds 15 to 20 kt with gusts up to 30 kt and 
  waves around 2 feet.

* WHERE...Boston Harbor.

* WHEN...Until 4 AM EST Saturday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ250-256-211545-
/O.CON.KBOX.SC.Y.0112.000000T0000Z-241223T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
936 PM EST Fri Dec 20 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  seas 6 to 9 feet.

* WHERE...In Massachusetts coastal waters, Coastal waters east 
  of Ipswich Bay and the Stellwagen Bank National Marine 
  Sanctuary. In Rhode Island coastal waters, Coastal Waters from 
  Montauk NY to Marthas Vineyard extending out to 20 nm South of 
  Block Island.

* WHEN...Until 7 PM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ231-232-251-211545-
/O.CON.KBOX.SC.Y.0112.000000T0000Z-241222T1200Z/
Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay-
936 PM EST Fri Dec 20 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 4 to 7 feet.

* WHERE...Cape Cod Bay, Nantucket Sound and Massachusetts Bay 
  and Ipswich Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ233>235-237-211200-
/O.CON.KBOX.SC.Y.0112.000000T0000Z-241221T1200Z/
Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound-
936 PM EST Fri Dec 20 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...North winds 15 to 20 kt with gusts up to 30 kt and seas 
  4 to 6 feet.

* WHERE...In Massachusetts coastal waters, Vineyard Sound and 
  Buzzards Bay. In Rhode Island coastal waters, Rhode Island 
  Sound and Block Island Sound.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
1 follow-up statement
111 
WHUS71 KBOX 210851
MWWBOX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Boston/Norton MA
351 AM EST Sat Dec 21 2024

ANZ254-255-212200-
/O.CAN.KBOX.GL.W.0034.000000T0000Z-241221T0900Z/
/O.EXA.KBOX.SC.Y.0112.000000T0000Z-241223T0000Z/
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-
351 AM EST Sat Dec 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST SUNDAY...
...GALE WARNING IS CANCELLED...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 7 to 10 feet.

* WHERE...Coastal waters from Provincetown MA to Chatham MA to 
  Nantucket MA out 20 nm and Coastal Waters extending out to 25 
  nm South of Marthas Vineyard and Nantucket.

* WHEN...Until 7 PM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ230-211000-
/O.CAN.KBOX.SC.Y.0112.000000T0000Z-241221T0900Z/
Boston Harbor-
351 AM EST Sat Dec 21 2024

...SMALL CRAFT ADVISORY IS CANCELLED...

Wind gusts have fallen below advisory criteria, thus ending the
Small Craft Advisory for Boston Harbor.

$$

ANZ233>235-237-212200-
/O.EXT.KBOX.SC.Y.0112.000000T0000Z-241222T0300Z/
Vineyard Sound-Buzzards Bay-Rhode Island Sound-Block Island Sound-
351 AM EST Sat Dec 21 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS
EVENING...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 3 to 5 feet.

* WHERE...In Massachusetts coastal waters, Vineyard Sound and 
  Buzzards Bay. In Rhode Island coastal waters, Rhode Island 
  Sound and Block Island Sound.

* WHEN...Until 10 PM EST this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ250-256-212200-
/O.CON.KBOX.SC.Y.0112.000000T0000Z-241223T0000Z/
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
351 AM EST Sat Dec 21 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 6 to 9 feet.

* WHERE...In Massachusetts coastal waters, Coastal waters east 
  of Ipswich Bay and the Stellwagen Bank National Marine 
  Sanctuary. In Rhode Island coastal waters, Coastal Waters from 
  Montauk NY to Marthas Vineyard extending out to 20 nm South of 
  Block Island.

* WHEN...Until 7 PM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

ANZ231-232-251-212200-
/O.CON.KBOX.SC.Y.0112.000000T0000Z-241222T1200Z/
Cape Cod Bay-Nantucket Sound-Massachusetts Bay and Ipswich Bay-
351 AM EST Sat Dec 21 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST SUNDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 4 to 7 feet.

* WHERE...Cape Cod Bay, Nantucket Sound and Massachusetts Bay 
  and Ipswich Bay.

* WHEN...Until 7 AM EST Sunday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

What forecasters said that day

The local office's own words before this gale warning 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 gale warning went out at Dec 20, 6:52 PM EST, 2 hours 44 minutes earlier.

Area forecast discussion, Dec 20, 6:52 PM EST, 2 hours 44 minutes before
Area Forecast Discussion
National Weather Service Boston/Norton MA
652 PM EST Fri Dec 20 2024

.SYNOPSIS...
An offshore coastal storm will continue to bring light snow
accumulations this afternoon through the early morning hours of
Saturday followed by very cold weather into early next week. A weak
clipper system moves through Christmas Eve and will likely
bring light snow accumulations to the region. Temperatures
slowly moderate through the week back into the 30s and 40s

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
630 PM update...

Still seeing ocean enhanced snow bands moving westward across
Boston and SW suburbs, while heavier snow gradually shifts to
SE coastal MA and Cape/Islands as deepening low pres makes its
closest approach tracking just SE of the Benchmark. Additional
snow accum of 1-3 inches is expected across much of eastern MA
tonight, with locally up to 4 inches possible on the upper Cape
and portions of eastern Norfolk and northern Plymouth counties
where enhanced bands continue to rotate in from the ocean. The
snow will begin to taper off around midnight along I-95 corridor
3-4 am over the Cape/Islands.

Previous discussion...

Key Messages...

* Light to moderate snow will impact much of SNE this evening into
  the overnight hours dropping 2 to 5 inches of snow.

The big picture for the next 12 hours is that we'll haver periods of
rain and snow continuing for the next several hours, then
transitioning to all snow with sunset and falling temperatures.
Since this morning's update snow totals have been increased, mainly
for eastern MA where some banding is setting up on top of ocean
effect snow.

We're dealing with two mechanisms for snow production today (which
made for a unique radar look earlier as we had snow showers
converging from east and west). The bulk of the snow so far
experienced for those north of the coastal front (currently draped
from Quincy to Providence) is from ocean effect snow showers as the
cold air flows over the relatively warm waters. This same phenomenon
has brought rain showers to the Cape and southeast MA all day as
well. The pesky thing to nail down as usual is just how far
inland/northwest the coastal front would make it today, and guidance
certainly was too far north which is why we've had more hours of
snow than expected in the Boston/metro west area this afternoon. As
temperatures begin to drop with sunset that front will collapse
south and rain will flip to snow over southeast MA including Cape
Cod.

The other factor with this evening's snow is the precipitation
associated with a deepening coastal low moving up the coast outside
of the benchmark tonight. While the maximum of the moisture
plume/QPF remains offshore guidance did shift west with some of it
which is part of the reason snowfall totals were increased. We
expect an already observed banding of precipitation over
eastern/northeast MA to continue this evening as a band of 700 mb
frontogenesis sets up over southeast MA. We know that historically
the maximum of snowfall typically falls just to the northwest of
these maxima which would be northern RI into northeast MA. The
combination of ocean enhanced snowfall and this deformation axis
will most likely lead to snowfall totals of 2 to 5 inches in this
region. The biggest concern will be for the evening commute where
model soundings suggest strong lift in the dendritic growth zone
which may lead to localized snowfall amounts of up to 1"/hour (30-
40% chance). Elsewhere, even down to the coast Cape Cod could pick 1-
3 inches of snow as well in the ~12 hour window that snow is likely.
This all exits east by sunrise on Saturday.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
Key Messages...

* Drier and colder on Saturday and very cold on Saturday night

Saturday the mid level trough remains overhead but the low quickly
exits east. We'll see breezy NW winds 10 to 15 mph with gusts as
high as 25 mph. Given the cyclonic flow aloft we may see some widely
scattered light snow but mostly just continued cloudcover. In the
afternoon heights will be starting to rise and drier air advected in
on that NW flow so clouds will dissipate through the afternoon and
evening. This will be the transition toward our coldest day of the
season on Sunday, with highs only making it into the upper 20s and
low 30s. The real cold arrives overnight, though, as frigid air
arrives. 850 mb reach around -15C, while at the surface lows will
drop into the single digits (interior) and mid teens (coast). Breezy
winds will make it feel more like single digit negatives to near 0
in the interior.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
Key Messages:

 * Arctic Airmass continues to bring highs in the 20s and lows in
   the single digits Sunday into Monday

 * Gradual warm-up the rest of the week with highs in the 30s and
   lows in the 20s

 * Weak clipper system moves through Christmas Eve, but confidence
   is still low

1040mb high pressure and arctic airmass remain over the region
through Monday. Despite sunny skies, highs will struggle to top 30F,
with most of the region in the low 20s. With blustery NW winds at 10-
15mph, the wind chill factor will make it feel like the single
digits. Overnight lows will likely drop to some of the coldest we
have seen thus far for the season, with lows in the single digits,
possibly below zero in high terrain in NW MA.  Winds will decrease
overnight, which will help prevent the wind chill factor from going
far below zero. Surface flow turns southerly on Monday, allowing
high temps to moderate slightly into the upper 20s to low 30s.

A clipper system drops out of the Northern Great Lakes on Christmas
Eve, which could bring another round of light wintry precipitation.
Uncertainty remains high with this system as models are usually too
quick to kick out strong high-pressure systems. Current ensemble
guidance shows high probs for 1 inch across the region, with low
probs for 3 inches in the high terrain of the Berkshires.
Temperatures Tuesday continue to moderate into the low to mid-30s.

High pressure builds back in from the north for Christmas Day
through the end of the week. High temperatures continue to moderate
into the mid to upper 30s to even low 40s by the end of the week.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
Forecast Confidence Levels:

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

Tonight...Moderate confidence.

Light to moderate snow continues east of the I-95 corridor
though about 04-06z, except over the Cape and Islands where
snow will last until 06-09z. IFR/LIFR conditions can be expected
with snow fall, but should lift to MVFR as snow comes to an
end.

West of the I-95 corridor, snow is slowing down with only
lingering snow showers and MVFR CIGS.

CIGS will go VFR from west to east tonight as winds turn NW.
With good mixing gusts of 10-20 knots are possible right into
Saturday morning.

Saturday...Moderate confidence.

Mainly VFR cigs, but lower MVFR cigs possible early
Cape/Islands. Scattered snow showers developing which may
reduce vsbys at times, especially interior. NW wind 10-20 kt
with some higher gusts.

Saturday night...Moderate.

VFR. NW winds 5-10 kts gusting to 20 kts.

KBOS TAF...Low to Moderate confidence. Continued light to
moderate snow off of the ocean will reduce vsbys at times below
3 miles through the evening. NNE gusts to 20-25 kt.

KBDL TAF...Moderate confidence. Cigs lowering to MVFR with
light to moderate snow in the afternoon and evening which may
reduce vsbys below 1 mile at times.

Outlook /Sunday through Wednesday/...

Sunday: VFR. Breezy.

Sunday Night through Monday: VFR.

Monday Night: Mainly VFR, with local MVFR possible. Chance SN.

Tuesday: Mainly VFR, with areas MVFR possible. Chance SN,
chance RA.

Tuesday Night: Mainly VFR, with local MVFR possible. Chance SN.

Christmas Day: VFR. Slight chance RA, slight chance SN.

&&

.MARINE...
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.

Key Messages:

* Small Craft Advisory in effect through Sunday.

Tonight...Moderate confidence.

Surface low pressure system moves up the coast and remains out to
sea. Increasing east/northeast winds 15 to 20 knots with gusts
up to 30 knots on the outermost waters, nearshore waters gusts
are closer to 25 knots. Seas building 4 to 9 feet for the
waters. Periods of rain and snow tonight, diminishing early
Saturday morning.

Saturday...High confidence.

Low pressure system lifts northeast from southern New England, but
with high pressure building to the west, it will lead to northwest
flow with gusts continuing throughout the day. Have extended the
Small Craft Advisory as a result through the day. Seas remain rough
3 to 6 feet on the southern waters and 5 to 8 feet on the eastern
waters.

Saturday night...High confidence.

High pressure moving overhead. NW winds 15-20 kts gusting to 25
kts. Seas 5-7 ft.

Outlook /Sunday through Wednesday/...

Sunday: Winds less than 25 kt. Seas up to 5 ft. Chance of snow.
Local visibility 1 to 3 nm.

Sunday Night: Winds less than 25 kt. Areas of seas approaching
5 ft. Chance of snow.

Monday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of snow.

Monday Night: Winds less than 25 kt. Chance of rain, chance of
snow.

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft.
Rain likely. Local visibility 1 to 3 nm.

Tuesday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain, chance of snow.

Christmas Day: Winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Winter Weather Advisory until 4 AM EST Saturday for MAZ005>007-
     012>022.
RI...Winter Weather Advisory until 4 AM EST Saturday for RIZ001>005-
     007.
MARINE...Small Craft Advisory until 7 AM EST Sunday for ANZ231-232-251.
     Small Craft Advisory until 7 AM EST Saturday for ANZ233>235-
     237.
     Small Craft Advisory until 7 PM EST Sunday for ANZ250-254>256.

&&

SYNOPSIS...BW/KP
NEAR TERM...KJC/BW
SHORT TERM...KJC/BW
LONG TERM...KP
AVIATION...BW/KP
MARINE...BW/KP

In the hours before

Local storm report, Dec 20, 3:50 PM EST, 5 hours 46 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
350 PM EST Fri Dec 20 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0345 PM     Snow             Shrewsbury              42.30N 71.71W
12/20/2024  U1.0 Inch        Worcester          MA   Trained Spotter

0344 PM     Snow             Harrisville             41.97N 71.67W
12/20/2024  M2.0 Inch        Providence         RI   Public

0338 PM     Snow             Needham                 42.28N 71.24W
12/20/2024  M2.5 Inch        Norfolk            MA   Amateur Radio

0337 PM     Snow             1 W Richmond            41.50N 71.66W
12/20/2024  U1.5 Inch        Washington         RI   Amateur Radio

0337 PM     Snow             1 SW Auburn             42.20N 71.84W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0331 PM     Snow             2 SW Westborough        42.24N 71.65W
12/20/2024  M1.4 Inch        Worcester          MA   NWS Employee

0330 PM     Snow             2 W Warwick             41.70N 71.46W
12/20/2024  M1.2 Inch        Kent               RI   Amateur Radio

0318 PM     Snow             1 SW Sturbridge         42.09N 72.07W
12/20/2024  M1.2 Inch        Worcester          MA   Trained Spotter

0315 PM     Snow             Grafton                 42.21N 71.69W
12/20/2024  M1.3 Inch        Worcester          MA   Storm Chaser

0310 PM     Snow             Chelsea                 42.40N 71.03W
12/20/2024  M1.0 Inch        Suffolk            MA   Trained Spotter

0258 PM     Snow             2 E Vernon              41.82N 72.45W
12/20/2024  M1.5 Inch        Tolland            CT   Broadcast Media

            Reported by Media.

0147 PM     Snow             Dedham                  42.25N 71.18W
12/20/2024  M2.1 Inch        Norfolk            MA   Broadcast Media

0126 PM     Snow             1 E Allston             42.35N 71.12W
12/20/2024  M1.5 Inch        Suffolk            MA   Public

0100 PM     Snow             1 SE Cambridge          42.37N 71.11W
12/20/2024  M1.0 Inch        Middlesex          MA   Public

            Reported by Trained Spotter.

1220 PM     Snow             Needham                 42.28N 71.24W
12/20/2024  M1.0 Inch        Norfolk            MA   Public

            Reported by Amateur Radio.

1143 AM     Snow             1 S Brighton            42.34N 71.15W
12/20/2024  M1.0 Inch        Suffolk            MA   Public

&&
Local storm report, Dec 20, 4:19 PM EST, 5 hours 17 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
419 PM EST Fri Dec 20 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0413 PM     Snow             1 S Brookline           42.33N 71.12W
12/20/2024  E3.2 Inch        Suffolk            MA   Public

0358 PM     Snow             1 NW Charlton           42.15N 71.98W
12/20/2024  M1.0 Inch        Worcester          MA   Public

&&
Local storm report, Dec 20, 7:39 PM EST, 1 hour 57 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
739 PM EST Fri Dec 20 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0736 PM     Snow             Needham                 42.28N 71.24W
12/20/2024  M5.0 Inch        Norfolk            MA   Amateur Radio

0714 PM     Snow             1 SE Cambridge          42.37N 71.11W
12/20/2024  M4.9 Inch        Middlesex          MA   Trained Spotter

0700 PM     Snow             1 E Boxford             42.67N 70.97W
12/20/2024  M4.8 Inch        Essex              MA   Trained Spotter

0700 PM     Snow             1 NE Beacon Hill        42.37N 71.06W
12/20/2024  M4.8 Inch        Suffolk            MA   Trained Spotter

0437 PM     Snow             1 E Dedham              42.24N 71.16W
12/20/2024  M4.5 Inch        Norfolk            MA   Trained Spotter

0601 PM     Snow             1 W Westwood            42.21N 71.24W
12/20/2024  M4.5 Inch        Norfolk            MA   Trained Spotter

0700 PM     Snow             2 SW Norwood            42.16N 71.21W
12/20/2024  M4.5 Inch        Norfolk            MA   Amateur Radio

0701 PM     Snow             1 NW Walpole            42.14N 71.25W
12/20/2024  M4.5 Inch        Norfolk            MA   Amateur Radio

0736 PM     Snow             1 W Newton              42.33N 71.23W
12/20/2024  M4.5 Inch        Middlesex          MA   Public

0700 PM     Snow             Boston                  42.32N 71.07W
12/20/2024  M4.4 Inch        Suffolk            MA   ASOS

0648 PM     Snow             Needham                 42.28N 71.24W
12/20/2024  M4.3 Inch        Norfolk            MA   Amateur Radio

0420 PM     Snow             1 S Brighton            42.34N 71.15W
12/20/2024  E4.0 Inch        Suffolk            MA   Public

0712 PM     Snow             2 NE Norfolk            42.14N 71.29W
12/20/2024  M4.0 Inch        Norfolk            MA   Amateur Radio

0540 PM     Snow             1 SW Boxford            42.66N 71.00W
12/20/2024  M3.5 Inch        Essex              MA   Public

0413 PM     Snow             1 S Brookline           42.33N 71.12W
12/20/2024  E3.2 Inch        Suffolk            MA   Public

0547 PM     Snow             Chelsea                 42.40N 71.03W
12/20/2024  M3.2 Inch        Suffolk            MA   Trained Spotter

0700 PM     Snow             2 N Rehoboth            41.86N 71.27W
12/20/2024  M3.2 Inch        Bristol            MA   NWS Employee

0443 PM     Snow             2 SW Newburyport        42.79N 70.91W
12/20/2024  M3.0 Inch        Essex              MA   Public

0603 PM     Snow             Harrisville             41.97N 71.67W
12/20/2024  M3.0 Inch        Providence         RI   Public

0700 PM     Snow             2 W Blackstone          42.02N 71.53W
12/20/2024  M3.0 Inch        Worcester          MA   Amateur Radio

0705 PM     Snow             Somerville              42.39N 71.11W
12/20/2024  M3.0 Inch        Middlesex          MA   Trained Spotter

0712 PM     Snow             Millis                  42.17N 71.35W
12/20/2024  M2.9 Inch        Norfolk            MA   Trained Spotter

0459 PM     Snow             2 E Vernon              41.82N 72.45W
12/20/2024  M2.8 Inch        Tolland            CT   Broadcast Media

0525 PM     Snow             1 E Weston              42.37N 71.26W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0715 PM     Snow             2 S Lexington           42.42N 71.23W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0717 PM     Snow             Lexington               42.45N 71.22W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0708 PM     Snow             2 W Warwick             41.70N 71.46W
12/20/2024  M2.5 Inch        Kent               RI   Amateur Radio

0654 PM     Snow             1 W Tolland             41.87N 72.39W
12/20/2024  M2.4 Inch        Tolland            CT   Public

0506 PM     Snow             1 NE Mansfield          42.03N 71.21W
12/20/2024  M2.3 Inch        Bristol            MA   Trained Spotter

0626 PM     Snow             Grafton                 42.21N 71.69W
12/20/2024  M2.3 Inch        Worcester          MA   Trained Spotter

0700 PM     Snow             1 S Cumberland          41.94N 71.40W
12/20/2024  M2.3 Inch        Providence         RI   NWS Employee

0500 PM     Snow             1 NE Chelsea            42.40N 71.02W
12/20/2024  M2.2 Inch        Suffolk            MA   Public

0147 PM     Snow             Dedham                  42.25N 71.18W
12/20/2024  M2.1 Inch        Norfolk            MA   Broadcast Media

0415 PM     Snow             3 NE Mansfield          42.05N 71.18W
12/20/2024  M2.0 Inch        Bristol            MA   Public

0452 PM     Snow             Andover                 42.66N 71.14W
12/20/2024  M2.0 Inch        Essex              MA   Trained Spotter

0454 PM     Snow             1 W Richmond            41.50N 71.66W
12/20/2024  M2.0 Inch        Washington         RI   Amateur Radio

0457 PM     Snow             2 NW Milford            42.17N 71.53W
12/20/2024  M2.0 Inch        Worcester          MA   Trained Spotter

0518 PM     Snow             1 NW West Warwick       41.71N 71.52W
12/20/2024  M2.0 Inch        Kent               RI   Trained Spotter

0524 PM     Snow             1 SW North Attleborough 41.96N 71.34W
12/20/2024  M2.0 Inch        Bristol            MA   Trained Spotter

0702 PM     Snow             North Attleboro         41.98N 71.33W
12/20/2024  M2.0 Inch        Bristol            MA   Amateur Radio

0413 PM     Snow             1 SW Franklin           42.08N 71.40W
12/20/2024  M1.9 Inch        Norfolk            MA   Trained Spotter

0452 PM     Snow             1 NW Holliston          42.22N 71.45W
12/20/2024  M1.9 Inch        Middlesex          MA   Public

0553 PM     Snow             2 SW Westborough        42.24N 71.65W
12/20/2024  M1.9 Inch        Worcester          MA   NWS Employee

0700 PM     Snow             3 SE Sandwich           41.72N 70.47W
12/20/2024  M1.9 Inch        Barnstable         MA   CO-OP Observer

0552 PM     Snow             1 N Cumberland          41.97N 71.40W
12/20/2024  M1.7 Inch        Providence         RI   Trained Spotter

0657 PM     Snow             1 NW Lexington          42.45N 71.24W
12/20/2024  M1.7 Inch        Middlesex          MA   Trained Spotter

0414 PM     Snow             2 E Providence          41.83N 71.39W
12/20/2024  M1.6 Inch        Providence         RI   Public

0504 PM     Snow             Arlington               42.42N 71.16W
12/20/2024  M1.6 Inch        Middlesex          MA   Trained Spotter

0718 PM     Snow             1 SW Sturbridge         42.09N 72.07W
12/20/2024  M1.6 Inch        Worcester          MA   Trained Spotter

0337 PM     Snow             1 SW Auburn             42.20N 71.84W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0416 PM     Snow             1 SE North Kingstown    41.56N 71.44W
12/20/2024  U1.5 Inch        Washington         RI   Amateur Radio

0421 PM     Snow             1 NE Narragansett       41.43N 71.46W
12/20/2024  M1.5 Inch        Washington         RI   Public

0433 PM     Snow             2 NW Cumberland         41.98N 71.42W
12/20/2024  M1.5 Inch        Providence         RI   NWS Employee

0452 PM     Snow             Oxford                  42.12N 71.86W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0456 PM     Snow             2 NW Grafton            42.23N 71.71W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0552 PM     Snow             1 NW North Reading      42.57N 71.08W
12/20/2024  M1.5 Inch        Middlesex          MA   Public

0623 PM     Snow             Shrewsbury              42.30N 71.71W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0421 PM     Snow             1 NE Barrington         41.74N 71.31W
12/20/2024  M1.4 Inch        Bristol            RI   Public

0533 PM     Snow             2 S Reading             42.51N 71.12W
12/20/2024  M1.1 Inch        Middlesex          MA   Public

0649 PM     Snow             3 NE Coventry           41.73N 71.56W
12/20/2024  M1.1 Inch        Providence         RI   Broadcast Media

0358 PM     Snow             1 NW Charlton           42.15N 71.98W
12/20/2024  M1.0 Inch        Worcester          MA   Public

0425 PM     Snow             3 W South Kingstown     41.43N 71.61W
12/20/2024  M1.0 Inch        Washington         RI   Trained Spotter

0500 PM     Snow             Worcester AP            42.27N 71.87W
12/20/2024  M1.0 Inch        Worcester          MA   Public

&&
Local storm report, Dec 20, 8:13 PM EST, 1 hour 23 minutes before
Preliminary Local Storm Report...Summary
National Weather Service Boston/Norton MA
813 PM EST Fri Dec 20 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0807 PM     Snow             2 W Westborough         42.25N 71.66W
12/20/2024  M2.1 Inch        Worcester          MA   NWS Employee

0806 PM     Snow             Topsfield               42.64N 70.95W
12/20/2024  M5.0 Inch        Essex              MA   Trained Spotter

0806 PM     Snow             1 E Randolph            42.17N 71.04W
12/20/2024  M4.0 Inch        Norfolk            MA   Trained Spotter

0800 PM     Snow             1 NE Coventry           41.70N 71.59W
12/20/2024  M2.5 Inch        Kent               RI   Amateur Radio

0759 PM     Snow             2 SW Newburyport        42.79N 70.91W
12/20/2024  M4.0 Inch        Essex              MA   Public

0757 PM     Snow             2 W Danvers             42.58N 70.98W
12/20/2024  M5.3 Inch        Essex              MA   Public

0757 PM     Snow             1 SE Millis             42.16N 71.35W
12/20/2024  M3.5 Inch        Norfolk            MA   Trained Spotter

0752 PM     Snow             Wakefield               42.51N 71.07W
12/20/2024  M3.0 Inch        Middlesex          MA   Public

0747 PM     Snow             2 E Providence          41.83N 71.39W
12/20/2024  M2.8 Inch        Providence         RI   Public

0747 PM     Snow             1 SE East Dennis        41.73N 70.15W
12/20/2024  E1.0 Inch        Barnstable         MA   Trained Spotter

0746 PM     Snow             2 NW Seekonk            41.83N 71.36W
12/20/2024  M3.6 Inch        Providence         RI   Trained Spotter

0744 PM     Snow             1 N Wakefield           42.52N 71.06W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0743 PM     Snow             Chelsea                 42.40N 71.03W
12/20/2024  M4.2 Inch        Suffolk            MA   Trained Spotter

0736 PM     Snow             Needham                 42.28N 71.24W
12/20/2024  M5.0 Inch        Norfolk            MA   Amateur Radio

0736 PM     Snow             1 W Newton              42.33N 71.23W
12/20/2024  M4.5 Inch        Middlesex          MA   Public

0718 PM     Snow             1 SW Sturbridge         42.09N 72.07W
12/20/2024  M1.6 Inch        Worcester          MA   Trained Spotter

0717 PM     Snow             Lexington               42.45N 71.22W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0715 PM     Snow             2 S Lexington           42.42N 71.23W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0714 PM     Snow             1 SE Cambridge          42.37N 71.11W
12/20/2024  M4.9 Inch        Middlesex          MA   Trained Spotter

0712 PM     Snow             2 NE Norfolk            42.14N 71.29W
12/20/2024  M4.0 Inch        Norfolk            MA   Amateur Radio

0712 PM     Snow             Millis                  42.17N 71.35W
12/20/2024  M2.9 Inch        Norfolk            MA   Trained Spotter

0708 PM     Snow             2 W Warwick             41.70N 71.46W
12/20/2024  M2.5 Inch        Kent               RI   Amateur Radio

0705 PM     Snow             Somerville              42.39N 71.11W
12/20/2024  M3.0 Inch        Middlesex          MA   Trained Spotter

0702 PM     Snow             North Attleboro         41.98N 71.33W
12/20/2024  M2.0 Inch        Bristol            MA   Amateur Radio

0701 PM     Snow             1 NW Walpole            42.14N 71.25W
12/20/2024  M4.5 Inch        Norfolk            MA   Amateur Radio

0700 PM     Snow             1 E Boxford             42.67N 70.97W
12/20/2024  M4.8 Inch        Essex              MA   Trained Spotter

0700 PM     Snow             1 NE Beacon Hill        42.37N 71.06W
12/20/2024  M4.8 Inch        Suffolk            MA   Trained Spotter

0700 PM     Snow             2 SW Norwood            42.16N 71.21W
12/20/2024  M4.5 Inch        Norfolk            MA   Amateur Radio

0700 PM     Snow             Boston                  42.32N 71.07W
12/20/2024  M4.4 Inch        Suffolk            MA   ASOS

0700 PM     Snow             2 N Rehoboth            41.86N 71.27W
12/20/2024  M3.2 Inch        Bristol            MA   NWS Employee

0700 PM     Snow             2 W Blackstone          42.02N 71.53W
12/20/2024  M3.0 Inch        Worcester          MA   Amateur Radio

0700 PM     Snow             1 S Cumberland          41.94N 71.40W
12/20/2024  M2.3 Inch        Providence         RI   NWS Employee

0700 PM     Snow             3 SE Sandwich           41.72N 70.47W
12/20/2024  M1.9 Inch        Barnstable         MA   CO-OP Observer

0657 PM     Snow             1 NW Lexington          42.45N 71.24W
12/20/2024  M1.7 Inch        Middlesex          MA   Trained Spotter

0654 PM     Snow             1 W Tolland             41.87N 72.39W
12/20/2024  M2.4 Inch        Tolland            CT   Public

0649 PM     Snow             3 NE Coventry           41.73N 71.56W
12/20/2024  M1.1 Inch        Providence         RI   Broadcast Media

0626 PM     Snow             Grafton                 42.21N 71.69W
12/20/2024  M2.3 Inch        Worcester          MA   Trained Spotter

0623 PM     Snow             Shrewsbury              42.30N 71.71W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0603 PM     Snow             Harrisville             41.97N 71.67W
12/20/2024  M3.0 Inch        Providence         RI   Public

0601 PM     Snow             1 W Westwood            42.21N 71.24W
12/20/2024  M4.5 Inch        Norfolk            MA   Trained Spotter

0552 PM     Snow             1 N Cumberland          41.97N 71.40W
12/20/2024  M1.7 Inch        Providence         RI   Trained Spotter

0552 PM     Snow             1 NW North Reading      42.57N 71.08W
12/20/2024  M1.5 Inch        Middlesex          MA   Public

0540 PM     Snow             1 SW Boxford            42.66N 71.00W
12/20/2024  M3.5 Inch        Essex              MA   Public

0533 PM     Snow             2 S Reading             42.51N 71.12W
12/20/2024  M1.1 Inch        Middlesex          MA   Public

0525 PM     Snow             1 E Weston              42.37N 71.26W
12/20/2024  M2.6 Inch        Middlesex          MA   Trained Spotter

0524 PM     Snow             1 SW North Attleborough 41.96N 71.34W
12/20/2024  M2.0 Inch        Bristol            MA   Trained Spotter

0518 PM     Snow             1 NW West Warwick       41.71N 71.52W
12/20/2024  M2.0 Inch        Kent               RI   Trained Spotter

0506 PM     Snow             1 NE Mansfield          42.03N 71.21W
12/20/2024  M2.3 Inch        Bristol            MA   Trained Spotter

0504 PM     Snow             Arlington               42.42N 71.16W
12/20/2024  M1.6 Inch        Middlesex          MA   Trained Spotter

0500 PM     Snow             1 NE Chelsea            42.40N 71.02W
12/20/2024  M2.2 Inch        Suffolk            MA   Public

0500 PM     Snow             Worcester AP            42.27N 71.87W
12/20/2024  M1.0 Inch        Worcester          MA   Public

0459 PM     Snow             2 E Vernon              41.82N 72.45W
12/20/2024  M2.8 Inch        Tolland            CT   Broadcast Media

0457 PM     Snow             2 NW Milford            42.17N 71.53W
12/20/2024  M2.0 Inch        Worcester          MA   Trained Spotter

0456 PM     Snow             2 NW Grafton            42.23N 71.71W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0454 PM     Snow             1 W Richmond            41.50N 71.66W
12/20/2024  M2.0 Inch        Washington         RI   Amateur Radio

0452 PM     Snow             Andover                 42.66N 71.14W
12/20/2024  M2.0 Inch        Essex              MA   Trained Spotter

0452 PM     Snow             1 NW Holliston          42.22N 71.45W
12/20/2024  M1.9 Inch        Middlesex          MA   Public

0452 PM     Snow             Oxford                  42.12N 71.86W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0437 PM     Snow             1 E Dedham              42.24N 71.16W
12/20/2024  M4.5 Inch        Norfolk            MA   Trained Spotter

0433 PM     Snow             2 NW Cumberland         41.98N 71.42W
12/20/2024  M1.5 Inch        Providence         RI   NWS Employee

0425 PM     Snow             3 W South Kingstown     41.43N 71.61W
12/20/2024  M1.0 Inch        Washington         RI   Trained Spotter

0421 PM     Snow             1 NE Narragansett       41.43N 71.46W
12/20/2024  M1.5 Inch        Washington         RI   Public

0421 PM     Snow             1 NE Barrington         41.74N 71.31W
12/20/2024  M1.4 Inch        Bristol            RI   Public

0420 PM     Snow             1 S Brighton            42.34N 71.15W
12/20/2024  E4.0 Inch        Suffolk            MA   Public

0416 PM     Snow             1 SE North Kingstown    41.56N 71.44W
12/20/2024  U1.5 Inch        Washington         RI   Amateur Radio

0415 PM     Snow             3 NE Mansfield          42.05N 71.18W
12/20/2024  M2.0 Inch        Bristol            MA   Public

0413 PM     Snow             1 S Brookline           42.33N 71.12W
12/20/2024  E3.2 Inch        Suffolk            MA   Public

0413 PM     Snow             1 SW Franklin           42.08N 71.40W
12/20/2024  M1.9 Inch        Norfolk            MA   Trained Spotter

0358 PM     Snow             1 NW Charlton           42.15N 71.98W
12/20/2024  M1.0 Inch        Worcester          MA   Public

0337 PM     Snow             1 SW Auburn             42.20N 71.84W
12/20/2024  M1.5 Inch        Worcester          MA   Trained Spotter

0147 PM     Snow             Dedham                  42.25N 71.18W
12/20/2024  M2.1 Inch        Norfolk            MA   Broadcast Media

&&

Nearby

Gale Warnings in Massachusetts, 2024Every gale warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.