Alerts from NWS Boston/Norton MA (UNOFFICIAL)

The Storm Prediction Center issues Day 3 Marginal Convective Risk at Jul 18, 7:22z for portions of BOX
at Fri, 18 Jul 2025 07:23:41 +0000 via IEMbot
Additional Details Here.

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft.

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, 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. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft.

Small Craft Advisory issued July 18 at 2:47AM EDT until July 18 at 2:00PM EDT by NWS Boston/Norton MA
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 18, 2:24 AM EDT
at Fri, 18 Jul 2025 06:25:04 +0000 via IEMbot
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 18, 1:22 AM EDT
at Fri, 18 Jul 2025 05:29:33 +0000 via IEMbot
Additional Details Here.

HARTFORD CT Jul 17
Climate Report:
High: 90
Low: 77
Precip: Trace
Snow: 0.0" Snow Depth: 0"
at Fri, 18 Jul 2025 05:35:40 +0000 via IEMbot
Additional Details Here.

PROVIDENCE RI Jul 17
Climate Report:
High: 89
Low: 77
Precip: Trace
Snow: 0.0" Snow Depth: 0"
at Fri, 18 Jul 2025 05:35:40 +0000 via IEMbot
Additional Details Here.

WORCESTER MA Jul 17
Climate Report:
High: 85
Low: 73
Precip: Trace
Snow: 0.0"
at Fri, 18 Jul 2025 05:35:40 +0000 via IEMbot
Additional Details Here.

BOSTON MA Jul 17
Climate Report:
High: 91
Low: 72
Precip: 0.0"
Snow: 0.0"
at Fri, 18 Jul 2025 05:35:41 +0000 via IEMbot
Additional Details Here.

The areas affected include... Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary... Massachusetts Bay and Ipswich Bay... Ocean Waters from the Merrimack River to Plymouth from 40 to 60 NM offshore... At 912 PM EDT, Doppler radar indicated a line of gusty showers and embedded thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near Salisbury to 15 nm west of Newburyport to 28 nm northwest of Lynn, moving east at 40 knots. Locations impacted include... Eastern Point Ma, Beverly Harbor, The Coastal Waters East Of Cape Ann, Mass Bay Buoy 44029, Ipswich Bay, Thatcher Island, Marblehead Neck, Jeffreys Ledge Buoy 44098, Essex Bay, and Plum Island.

Marine Weather Statement issued July 17 at 9:12PM EDT by NWS Boston/Norton MA
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 17, 7:34 PM EDT
at Thu, 17 Jul 2025 23:34:54 +0000 via IEMbot
Additional Details Here.

BOX expires Heat Advisory for Hartford, Tolland, Windham [CT] and Central Middlesex County, Eastern Essex, Eastern Franklin, Eastern Hampden, Eastern Hampshire, Eastern Norfolk, Ea... at Thu, 17 Jul 2025 23:06:24 +0000 via IEMbot
Additional Details Here.

The Small Craft Advisory has been cancelled and is no longer in effect.

* WHAT...Southwest winds 10 to 15 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Portions of Massachusetts coastal waters and Rhode Island coastal waters. * WHEN...Until 2 AM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary and Massachusetts Bay and Ipswich Bay. * WHEN...Until 2 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

* WHAT...West winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, 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. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 2 PM EDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

The Small Craft Advisory has been cancelled.
Additional Details Here.(1/2)

HARTFORD CT Jul 17
Climate Report:
High: 90
Low: 77
Precip: Trace
Snow: 0.0"
at Thu, 17 Jul 2025 21:25:54 +0000 via IEMbot
Additional Details Here.

WORCESTER MA Jul 17
Climate Report:
High: 84
Low: 73
Precip: Trace
Snow: 0.0"
at Thu, 17 Jul 2025 21:25:54 +0000 via IEMbot
Additional Details Here.

PROVIDENCE RI Jul 17
Climate Report:
High: 89
Low: 77
Precip: Trace
Snow: 0.0"
at Thu, 17 Jul 2025 21:25:54 +0000 via IEMbot
Additional Details Here.

BOSTON MA Jul 17
Climate Report:
High: 91
Low: 72
Precip: 0.0"
Snow: 0.0"
at Thu, 17 Jul 2025 21:25:54 +0000 via IEMbot
Additional Details Here.

The Storm Prediction Center issues Day 1 Marginal Convective Risk at Jul 17, 19:39z for portions of BOX
at Thu, 17 Jul 2025 19:41:12 +0000 via IEMbot
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 17, 3:07 PM EDT
at Thu, 17 Jul 2025 19:07:26 +0000 via IEMbot
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 17, 1:50 PM EDT
at Thu, 17 Jul 2025 17:51:52 +0000 via IEMbot
Additional Details Here.

BOX continues Heat Advisory for Hartford, Tolland, Windham [CT] and Central Middlesex County, Eastern Essex, Eastern Franklin, Eastern Hampden, Eastern Hampshire, Eastern Norfolk, ... at Thu, 17 Jul 2025 17:26:19 +0000 via IEMbot
Additional Details Here.

* WHAT...Heat index values up to 98. * WHERE...Most of southern New England. * WHEN...Until 7 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued July 17 at 1:25PM EDT until July 17 at 7:00PM EDT by NWS Boston/Norton MA
Additional Details Here.

BOX issues Marine Warning [wind: >34 KTS, hail: 0.00 IN] for Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket, Coastal Waters from Montauk NY to Mar... at Thu, 17 Jul 2025 16:25:42 +0000 via IEMbot
Additional Details Here.

The Storm Prediction Center issues Day 1 Marginal Convective Risk at Jul 17, 16:25z for portions of BOX
at Thu, 17 Jul 2025 16:28:44 +0000 via IEMbot
Additional Details Here.

SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... 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... Ocean Waters from Marthas Vineyard to Nantucket from 25 to 45 NM offshore... Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 40 NM offshore... * Until 130 PM EDT. * At 1224 PM EDT, strong thunderstorm were located along a line from about 15 nm southwest of Marthas Vineyard extending south for another 25 nm. The storms were moving to the east at 40 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... The Coastal Waters South Of Marthas Vineyard, The Coastal Waters South Of Nantucket, and Surfside On Nantucket.

🚨 Special Marine Warning issued July 17 at 12:25PM EDT until July 17 at 1:30PM EDT by NWS Boston/Norton MA 🚨
Additional Details Here.

BOX issues Marine Warning [wind: 49 KTS, hail: 0.00 IN] for Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island [AN] till Jul 17, 12:30 ... at Thu, 17 Jul 2025 15:11:28 +0000 via IEMbot
Additional Details Here.

SMWBOX The National Weather Service in Boston/Norton has issued a * Special Marine Warning for... Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island... * Until 1230 PM EDT. * At 1105 AM EDT, a strong thunderstorm was located 10 nm south of Montauk NY or 25 nm southwest of Block Island, moving east at 40 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... The Coastal Waters Southeast Of Block Island and Buoy 44097 Southeast Of Block Island.

🚨 Special Marine Warning issued July 17 at 11:11AM EDT until July 17 at 12:30PM EDT by NWS Boston/Norton MA 🚨
Additional Details Here.

The Storm Prediction Center issues Day 1 Marginal Convective Risk at Jul 17, 12:35z for portions of BOX
at Thu, 17 Jul 2025 12:38:12 +0000 via IEMbot
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 17, 7:41 AM EDT
at Thu, 17 Jul 2025 11:41:36 +0000 via IEMbot
Additional Details Here.

BOX continues Heat Advisory for Hartford, Tolland, Windham [CT] and Central Middlesex County, Eastern Essex, Eastern Franklin, Eastern Hampden, Eastern Hampshire, Eastern Norfolk, ... at Thu, 17 Jul 2025 06:35:24 +0000 via IEMbot
Additional Details Here.

BOX issues Area Forecast Discussion (AFD) at Jul 17, 2:53 AM EDT
at Thu, 17 Jul 2025 06:54:07 +0000 via IEMbot
Additional Details Here.