Alert archive / Massachusetts / Special Marine Warnings in 2021

Special Marine Warning 104, NWS Boston/Norton, MA

September 28, 2021

NWS Boston/Norton, MA issued this special marine warning at Sep 28, 2021, 2:30 PM EDT. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 28, 2021, 2:30 PM EDT (18:30 UTC)
Expired: Sep 28, 2021, 3:15 PM EDT
In force: 45 min
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 34.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Sep 28, 1:59 PM EDT, 31 minutes earlier.

Area forecast discussion, Sep 28, 1:59 PM EDT, 31 minutes before

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Hazardous weather outlook, Sep 28, 4:33 AM EDT, 9 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service Boston/Norton MA
433 AM EDT Tue Sep 28 2021

CTZ002>004-MAZ002>024-026-RIZ001>008-290845-
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-Northwest Providence RI-
Southeast Providence RI-Western Kent RI-Eastern Kent RI-Bristol RI-
Washington RI-Newport RI-Block Island RI-
433 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for northern Connecticut, all of
Massachusetts east of Berkshire County, and Rhode Island.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ANZ230>237-250-251-254>256-290845-
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-
433 AM EDT Tue Sep 28 2021

This Hazardous Weather Outlook is for Massachusetts and Rhode
Island coastal waters.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

For more information on upcoming hazardous weather, please see the
Area Forecast Discussion on our webpage for the latest forecast
thinking. There is also our Enhanced Hazardous Weather Outlook at
www.weather.gov/box/ehwo

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/nwsboston

You can follow us on Twitter at
@NWSBoston

In the hours before

Local storm report, Sep 28, 10:15 AM EDT, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
1015 AM EDT TUE SEP 28 2021

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

0904 AM     LIGHTNING        DUDLEY                  42.05N  71.93W
09/28/2021                   WORCESTER          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WEST MAIN STREET CAUSED BY
            LIGHTNING

0940 AM     HAIL             CUMBERLAND              41.97N  71.46W
09/28/2021  M0.75 INCH       PROVIDENCE         RI   TRAINED SPOTTER

            TRAINED SPOTTER

&&

EVENT NUMBER BOX2103060 BOX2103061

AED

Special weather statement, Sep 28, 10:27 AM EDT, 4 hours 3 minutes before

Special Weather Statement
National Weather Service Boston/Norton MA
1027 AM EDT Tue Sep 28 2021

CTZ002>004-281530-
Hartford CT-Tolland CT-Windham CT-
1027 AM EDT Tue Sep 28 2021

...A strong thunderstorm will impact portions of southern Windham,
southern Tolland and southeastern Hartford Counties through 1130 AM
EDT...

At 1026 AM EDT, Doppler radar was tracking a strong thunderstorm over
Willimantic, or over Windham, moving east at 40 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Vernon, Mansfield, Windham, Plainfield, Willimantic, Killingly,
Tolland, Coventry, Hebron, Putnam, Brooklyn, Marlborough, Willington,
Columbia, Canterbury, Bolton, Ashford, Pomfret, Sterling and Andover.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4160 7241 4159 7242 4182 7246 4191 7188
      4164 7181 4163 7196 4166 7213 4166 7216
      4171 7224 4169 7227 4167 7227 4164 7233
      4161 7233 4160 7234 4160 7238 4159 7239
TIME...MOT...LOC 1426Z 256DEG 33KT 4174 7218

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

Frank

Special weather statement, Sep 28, 10:50 AM EDT, 3 hours 40 minutes before

Special Weather Statement
National Weather Service Boston/Norton MA
1050 AM EDT Tue Sep 28 2021

CTZ004-MAZ017-020-RIZ001>005-281530-
Windham CT-Southern Bristol MA-Northern Bristol MA-
Northwest Providence RI-Bristol RI-Western Kent RI-Eastern Kent RI-
Southeast Providence RI-
1050 AM EDT Tue Sep 28 2021

...A strong thunderstorm will impact portions of southeastern
Windham, northwestern Bristol, northern Kent, Providence and northern
Bristol Counties through 1130 AM EDT...

At 1050 AM EDT, Doppler radar was tracking a strong thunderstorm over
Killingly, or near Plainfield, moving east at 40 mph.

HAZARD...Pea size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
Providence, Fall River, Warwick, Cranston, Pawtucket, Taunton, East
Providence, Coventry, Cumberland, North Providence, West Warwick,
Johnston, North Attleborough, Bristol, Plainfield, Attleboro,
Mansfield, Smithfield, Lincoln and Central Falls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4168 7194 4189 7199 4201 7117 4174 7115
      4176 7113 4171 7111 4171 7119 4172 7120
      4171 7121 4173 7122 4171 7123 4173 7126
      4171 7126 4171 7131 4175 7136 4179 7137
      4176 7139 4172 7136 4170 7137
TIME...MOT...LOC 1450Z 263DEG 36KT 4179 7185

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

RM

Special weather statement, Sep 28, 11:18 AM EDT, 3 hours 12 minutes before

Special Weather Statement
National Weather Service Boston/Norton MA
1118 AM EDT Tue Sep 28 2021

MAZ018>022-RIZ003>007-281600-
Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Western Plymouth MA-Barnstable MA-Bristol RI-Washington RI-
Western Kent RI-Eastern Kent RI-Newport RI-
1118 AM EDT Tue Sep 28 2021

...A strong thunderstorm will impact portions of west central
Barnstable, southern Plymouth, southeastern Bristol, northeastern
Washington, central Newport, southeastern Kent and southeastern
Bristol Counties through NOON EDT...

At 1117 AM EDT, Doppler radar was tracking a strong thunderstorm over
North Kingstown, moving east at 35 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
New Bedford, Fall River, Warwick, Plymouth, Barnstable, Coventry,
Dartmouth, Falmouth, South Kingstown, West Warwick, North Kingstown,
Bristol, Marion, Middleborough, Wareham, Sandwich, Bourne, Somerset,
Portsmouth and Barrington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4148 7155 4165 7162 4177 7112 4174 7114
      4193 7056 4168 7042 4164 7065 4175 7063
      4170 7067 4174 7071 4161 7085 4165 7092
      4160 7090 4154 7120 4164 7123 4154 7124
      4151 7139 4156 7143 4150 7142
TIME...MOT...LOC 1517Z 258DEG 32KT 4158 7151

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

RM

Special weather statement, Sep 28, 1:36 PM EDT, 54 minutes before

Special Weather Statement
National Weather Service Boston/Norton MA
136 PM EDT Tue Sep 28 2021

MAZ020-RIZ003>007-281815-
Southern Bristol MA-Bristol RI-Washington RI-Western Kent RI-
Eastern Kent RI-Newport RI-
136 PM EDT Tue Sep 28 2021

...A strong thunderstorm will impact portions of south central
Bristol, Washington, Newport, southeastern Kent and southeastern
Bristol Counties through 215 PM EDT...

At 135 PM EDT, Doppler radar was tracking a strong thunderstorm over
Westerly, or 8 miles east of Mystic, moving east at 45 mph.

HAZARD...Pea size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
Fall River, Warwick, South Kingstown, North Kingstown, Newport,
Bristol, Westerly, Somerset, Portsmouth, Middletown, Narragansett,
Swansea, Tiverton, Westport, East Greenwich, Warren, Hopkinton,
Charlestown, Richmond and Exeter.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4131 7188 4154 7179 4167 7141 4158 7142
      4155 7131 4167 7139 4162 7126 4167 7131
      4172 7126 4164 7121 4171 7116 4172 7125
      4175 7115 4149 7104 4146 7119 4164 7123
      4148 7124 4148 7125 4147 7143 4136 7149
TIME...MOT...LOC 1735Z 248DEG 41KT 4134 7181

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

RM

Local storm report, Sep 28, 2:25 PM EDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 28, 9:29 AM EDT	Severe Thunderstorm Warning	BOX	Bristol, Middlesex, Norfolk, Suffolk, Worcester	61 min
Sep 28, 10:02 AM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk, Plymouth, Suffolk	43 min
Sep 28, 10:06 AM EDT	Special Marine Warning	BOX		54 min
Sep 28, 11:18 AM EDT	Special Weather Statement	BOX	Bristol	42 min
Sep 28, 11:42 AM EDT	Special Marine Warning	BOX		48 min
Sep 28, 1:58 PM EDT	Special Marine Warning	BOX		47 min
Sep 28, 2:07 PM EDT	Severe Thunderstorm Warning	BOX	Barnstable, Bristol, Dukes, Plymouth	53 min
Sep 28, 2:58 PM EDT	Special Weather Statement	BOX	Barnstable	47 min
Sep 28, 3:25 PM EDT	Small Craft Advisory	BOX		28 hr
Sep 28, 3:29 PM EDT	Special Marine Warning	BOX		46 min
Sep 28, 9:11 AM EDT	Special Weather Statement	BOX	Providence	49 min
Sep 28, 10:50 AM EDT	Special Weather Statement	BOX	Providence	40 min
Sep 28, 1:36 PM EDT	Special Weather Statement	BOX	Newport, Washington	39 min
Sep 28, 8:52 AM EDT	Special Weather Statement	BOX		38 min
Sep 28, 10:27 AM EDT	Special Weather Statement	BOX		63 min

Nearby

Special Marine Warnings in Massachusetts, 2021 Every special marine warning in 2021

Sources

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