🔵 Minor

Small Craft Advisory

Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary; 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

Small Craft Advisory issued March 19 at 1:08PM EDT until March 21 at 8:00PM EDT by NWS Boston/Norton MA

Alert Description

* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, 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...From 2 PM Friday to 8 PM EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft.

Safety Instructions

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

Time Information

Effective

Mar 20, 2026, 6:00 PM

Expires

Mar 20, 2026, 6:15 AM

Issued

Mar 19, 2026, 5:08 PM

Alert Details

Severity

Minor

Urgency

Expected

Certainty

Likely

Issued By

NWS Boston/Norton MA

National Weather Service