Alert archive / Massachusetts / Small Craft Advisories in 2020
Small Craft Advisory 68, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this small craft advisory at May 4, 2020, 1:05 AM EDT. It took effect at May 4, 2020, 4:00 PM EDT. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- May 4, 2020, 1:05 AM EDT (05:05 UTC)
- In effect from
- May 4, 2020, 4:00 PM EDT
- Expired
- May 5, 2020, 4:00 PM EDT
- In force
- 24 hr
- Issued by
- NWS Boston/Norton, MA
The text
As transmitted.
041 WHUS71 KBOX 040505 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 105 AM EDT Mon May 4 2020 ANZ250-254>256-041315- /O.NEW.KBOX.SC.Y.0068.200504T2300Z-200505T2000Z/ 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- 105 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 4 PM EDT TUESDAY... * WHAT...Northwest 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 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-041315- /O.NEW.KBOX.SC.Y.0068.200505T0100Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 105 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-041315- /O.NEW.KBOX.SC.Y.0068.200505T0300Z-200505T1500Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 105 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 11 AM EDT TUESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 11 PM this evening to 11 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-041315- /O.NEW.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 105 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet expected. * WHERE...Rhode Island Sound and Block Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
8 follow-up statements
593 WHUS71 KBOX 040650 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 250 AM EDT Mon May 4 2020 ANZ230-041500- /O.EXB.KBOX.SC.Y.0068.200504T2000Z-200505T1600Z/ Boston Harbor- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EDT TUESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and waves 1 to 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 4 PM this afternoon to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-041500- /O.EXB.KBOX.SC.Y.0068.200504T2000Z-200505T0500Z/ Narragansett Bay- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EDT TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 3 feet expected. * WHERE...Narragansett Bay. * WHEN...From 4 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-254>256-041500- /O.CON.KBOX.SC.Y.0068.200504T2300Z-200505T2000Z/ 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- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM EDT TUESDAY... * WHAT...Northwest 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 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-041500- /O.CON.KBOX.SC.Y.0068.200505T0100Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-041500- /O.CON.KBOX.SC.Y.0068.200505T0300Z-200505T1500Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM EDT TUESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 11 PM this evening to 11 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-041500- /O.CON.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 250 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet expected. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
750 WHUS71 KBOX 041121 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 721 AM EDT Mon May 4 2020 ANZ250-254>256-041930- /O.CON.KBOX.SC.Y.0068.200504T2300Z-200505T2000Z/ 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- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM EDT TUESDAY... * WHAT...Northwest 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 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-041930- /O.CON.KBOX.SC.Y.0068.200505T0100Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-041930- /O.CON.KBOX.SC.Y.0068.200505T0300Z-200505T1500Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 11 PM this evening to 11 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-041930- /O.CON.KBOX.SC.Y.0068.200504T2000Z-200505T1600Z/ Boston Harbor- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EDT TUESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 4 PM this afternoon to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-041930- /O.CON.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-041930- /O.CON.KBOX.SC.Y.0068.200504T2000Z-200505T0500Z/ Narragansett Bay- 721 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EDT TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Narragansett Bay. * WHEN...From 4 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ BL
901 WHUS71 KBOX 041431 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1031 AM EDT Mon May 4 2020 ANZ250-254>256-042245- /O.CON.KBOX.SC.Y.0068.200504T2300Z-200505T2000Z/ 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- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM EDT TUESDAY... * WHAT...Northwest 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 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-042245- /O.CON.KBOX.SC.Y.0068.200505T0100Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-042245- /O.CON.KBOX.SC.Y.0068.200505T0300Z-200505T1500Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 11 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 11 PM this evening to 11 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-042245- /O.CON.KBOX.SC.Y.0068.200504T2000Z-200505T1600Z/ Boston Harbor- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO NOON EDT TUESDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 4 PM this afternoon to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-042245- /O.CON.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-042245- /O.CON.KBOX.SC.Y.0068.200504T2000Z-200505T0500Z/ Narragansett Bay- 1031 AM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 1 AM EDT TUESDAY... * WHAT...Northwest winds 10 to 15 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Narragansett Bay. * WHEN...From 4 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
933 WHUS71 KBOX 042018 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 418 PM EDT Mon May 4 2020 ANZ230-050430- /O.CAN.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ /O.NEW.KBOX.SC.Y.0069.200505T0200Z-200505T1400Z/ Boston Harbor- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ236-042130- /O.CAN.KBOX.SC.Y.0068.000000T0000Z-200505T0500Z/ Narragansett Bay- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY IS CANCELLED... $$ ANZ232>234-050430- /O.EXT.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ250-254>256-050430- /O.CON.KBOX.SC.Y.0068.200504T2300Z-200505T2000Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT TUESDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 6 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...From 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-050430- /O.CON.KBOX.SC.Y.0068.200505T0100Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-050430- /O.CON.KBOX.SC.Y.0068.200505T0200Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 418 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
638 WHUS71 KBOX 050212 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1012 PM EDT Mon May 4 2020 ANZ250-254>256-051015- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T2000Z/ 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- 1012 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT TUESDAY... * WHAT...Northwest 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 7 PM this evening to 4 PM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-051015- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 1012 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...From 9 PM this evening to noon EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-051015- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 1012 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet expected. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-051015- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 1012 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 to 5 feet expected. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-051015- /O.CON.KBOX.SC.Y.0069.000000T0000Z-200505T1400Z/ Boston Harbor- 1012 PM EDT Mon May 4 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT TUESDAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas around 2 feet expected. * WHERE...Boston Harbor. * WHEN...From 10 PM this evening to 10 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
583 WHUS71 KBOX 050756 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 356 AM EDT Tue May 5 2020 ANZ250-051600- /O.EXT.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ256-051600- /O.EXT.KBOX.SC.Y.0068.000000T0000Z-200505T1800Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 4 to 5 feet. * WHERE...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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-051600- /O.EXT.KBOX.SC.Y.0069.000000T0000Z-200505T1600Z/ Boston Harbor- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas around 2 feet. * WHERE...Boston Harbor. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ254-255-051600- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T2000Z/ 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- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 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 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-051600- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ232>234-051400- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... * WHAT...Northwest winds around 15 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Nantucket Sound, Vineyard Sound and Buzzards Bay. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ235-237-051400- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 356 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... * WHAT...Northwest winds around 15 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Block Island Sound and Rhode Island Sound. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
878 WHUS71 KBOX 051359 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 959 AM EDT Tue May 5 2020 ANZ232>234-051500- /O.EXP.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Nantucket Sound-Vineyard Sound-Buzzards Bay- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM EDT THIS MORNING... $$ ANZ235-237-051500- /O.EXP.KBOX.SC.Y.0068.000000T0000Z-200505T1400Z/ Rhode Island Sound-Block Island Sound- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 AM EDT THIS MORNING... $$ ANZ250-051600- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ254-255-052000- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T2000Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and seas 4 to 6 feet. * WHERE...Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ256-051800- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1800Z/ Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 4 to 5 feet. * WHERE...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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-251-051600- /O.CON.KBOX.SC.Y.0068.000000T0000Z-200505T1600Z/ Cape Cod Bay-Massachusetts Bay and Ipswich Bay- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas 2 to 4 feet. * WHERE...Cape Cod Bay and Massachusetts Bay and Ipswich Bay. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ230-051600- /O.CON.KBOX.SC.Y.0069.000000T0000Z-200505T1600Z/ Boston Harbor- 959 AM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and seas around 2 feet. * WHERE...Boston Harbor. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
107 WHUS71 KBOX 052003 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 403 PM EDT Tue May 5 2020 ANZ254-255-052115- /O.EXP.KBOX.SC.Y.0068.000000T0000Z-200505T2000Z/ Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm- Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket- 403 PM EDT Tue May 5 2020 ...SMALL CRAFT ADVISORY HAS EXPIRED... $$
What forecasters said that day
The local office's own words before this small craft advisory 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 small craft advisory went out at May 4, 1:04 AM EDT, 1 minute earlier.
Area forecast discussion, May 4, 1:04 AM EDT, 1 minute before
Area Forecast Discussion
National Weather Service Boston/Norton MA
104 AM EDT Mon May 4 2020
.SYNOPSIS...
Weak low pressure moves south of the region overnight with a
chance of light rain near the South Coast, Cape Cod, and the
Islands. Monday will be another mild day, although a cold front
will move through during the day with a few showers. Cooler and
dry weather will be in place for Tuesday and most of Wednesday.
Chances for showers and continued cool weather will be the rule
for the second half of the week, with the potential for a
stronger storm to impact the region late Friday and Saturday.
&&
.NEAR TERM /UNTIL 6 AM THIS MORNING/...
1 AM Update:
Cold front was pushing through SNE early this morning and
should be offshore by sunrise, bringing a wind shift to NW. High
clouds have spread over region and GOES-16 IFR probability
imagery indicates low clouds SE of Nantucket, but these should
remain offshore.
Convection moving through mid Atlantic will pivot toward SNE
early this morning as associated short waves moves off coast.
Northern edge of this activity should clip South Coast, Cape
Cod, and Islands per high-res guidance, but locations farther
north are expected to remain dry.
Overnight lows in upper 40s to mid 50s are on track.
&&
.SHORT TERM /6 AM THIS MORNING THROUGH 6 PM TUESDAY/...
As of 155 PM Sunday...
12z guidance still showing a similar scenario for the daytime.
Basically a fairly strong upper level shortwave will be moving
across the region during the day. At the same time, a surface
cold front will be cross the region, resulting in winds turning
northwest and getting a little gusty by mid-day (20-25mph).
Temperatures at 850mb will start the day in the 2-5C range, but
by late afternoon will drop to 0 to -2C. Roughly a 4C drop in 12
hours. Not a blockbuster front, but still enough to be notice
that it won't be as warm as it is today. With those 850mb
temperatures and some sunshine, we should see highs top out in
the upper 50s/low 60s west to mid 60s across the east where the
front will be latest to arrive.
Not a lot of low level moisture for the front and upper trough
to work with, but with early morning sunshine we will develop a
little bit of surface based instability. Looking at forecast
soundings, it appears the showers will be high based -- meaning
cloud bases will be around 5000 ft. With a good amount of dry
air below the clouds, that will allow rain falling from the
clouds to evaporate -- leading to cooling of air and gusty winds
to develop. All the hi-res models suggest that the best chances
for showers will be from the Berkshires across central MA and
then into east/southeast MA. Used a blend of guidance to show
the hourly PoPs. Chances of getting wet will only be 25-35%
across those regions. In other words, better chance of not
getting wet.
Any showers quickly diminish by late afternoon as the trough
axis moves offshore and any surface instability goes away.
Enough of a pressure gradient and cold air advection for Monday
night that we'll see a breeze keep up all night. Lows will be in
the 30s to lower 40s.
&&
.LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
Big Picture...
Zonal flow across the USA midweek breaks down as an upper ridge
builds along the Pacific Coast, diverting the Pacific flow north
into Arctic Canada while the flow over the Eastern USA turns from
the north from Canada Arctic. One shortwave in the flow moves
off through the Maritimes Tuesday, while a second shortwave
sweeps through New England Wednesday/Thursday. The most
prominent feature is a closed 500-mb low moving south from the
Canadian Arctic midweek and across New England Friday/Saturday.
Contours at 500-mb are normally around 565 Dm in early May. For
the current forecast, the values midweek are below normal and
the late week values are well below normal... about 2-3 std dev
below normal. The GFS forecasts values in the mid 520s, and the
ECMWF forecasts 519! Per SPC sounding climo, the values
forecast for Saturday and lower/colder than anything experienced
here in May in 70 years. This will bear watching. Precipitable
water values are mostly at or below 0.5 inches, which is mostly
below normal values so no major rain is expected.
Confidence is moderate midweek, then trends to low by the end of the
week and weekend.
Daily Concerns...
Tuesday...
Surface low moves east of Nova Scotia early Tuesday, with the upper
shortwave and cold pool over the Gulf of Maine moving east. The cold
pool moisture is forecast to linger over Eastern MA for at least
part of the day, between 850 and 700 mb. So expect a period of
clouds in the east while western areas become mostly sunny. The
mixed layer should reach to at least 825 mb, aided by the cold pool
aloft. Temps in the layer are equiv to -1C at 850 mb, so expect
max temps in the mid to upper 50s, possibly around 60 in the CT
Valley. Winds in the mixed layer around 15-20 kt, so potential
gusts around 20 mph.
The moist layer diminishes Tuesday night as a weak ridge moves
overhead. So expect clearing or partial clearing. Dew points in
the upper 20s and 30s will allow min temps in the 30s and low 40s.
Wednesday-Wednesday night...
Shortwave over the Great Lakes Wed morning moves east, crossing New
England late Wednesday and early Thursday. Exit region of the upper
jet passes south of New England, but may be close enough to generate
some lift. Meanwhile cold pool advection will work to destabilize
the airmass during the afternoon. This should be enough to generate
at least widely scattered showers starting late Wednesday and
continuing through the night. Mixed layer temps Wednesday equiv to
0C to -2C supports max temps in the 50s.
Thursday through Sunday...
Arctic closed upper low spins south through Nrn Ontario, entering
the Northeast USA Thursday afternoon and lingering overhead through
at least Saturday night. Plenty of cold pool moisture to support
clouds part of this time period. We may squeeze out a couple of
sunny periods, perhaps Friday and Sunday, but this timing is low
confidence. Cold pool temps at 500 mb...the GFS says -34C, while the
ECMWF says -38C. Such cold temps aloft will encourage deep mixing,
reaching at least 800 mb and possibly 750 mb. Temperatures in this
layer suggest max temps in the 50s, possibly around 50. Winds in the
mixed layer Friday reach 35 kt, suggesting strong gusty WNW winds at
that time. Lesser winds Saturday and Sunday.
&&
.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06Z Update: High confidence.
VFR CIGS AOA 120 through sunrise with local MVFR CIGS possible
in showers near South Coast, Cape Cod, and Islands (and farther
offshore). Winds shift to NW early this morning as cold front
pushes through SNE. VFR CIGS 050-080 develop by afternoon
along with widely scattered showers. NW winds gust to 20-30kt at
times this afternoon and into tonight, especially near coast, as
skies gradually clear. Diminishing NW winds Tue with
SCT-BKN050-080 by afternoon.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Tuesday Night through Friday/...
Tuesday Night: VFR.
Wednesday: Mainly VFR, with local MVFR possible. Slight chance
SHRA.
Wednesday Night through Thursday: Mainly MVFR, with areas VFR
possible. Chance SHRA.
Thursday Night: Mainly VFR, with areas MVFR possible. Breezy.
Chance SHRA.
Friday: Mainly VFR, with areas MVFR possible. Windy with gusts
up to 35 kt. Chance SHRA.
&&
.MARINE...
1 AM Update:
Small Craft Advisories being issued for all waters beginning
late today into Tue.
Cold front drops SE across waters by sunrise, shifting winds to
NW. Showers possible early this morning on south coastal waters,
especially S and E of Nantucket.
NW winds increase late in the day and especially tonight as
cooler air works into region, with 20-30kt gusts at times as
building seas as high as 6-8 ft offshore. Winds and seas
diminish Tue as high pressure begins to build into eastern
states.
Outlook /Tuesday Night through Friday/...
Tuesday Night through Wednesday: Winds less than 25 kt.
Wednesday Night: Winds less than 25 kt. Chance of rain showers.
Thursday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain showers.
Thursday Night: Winds less than 25 kt. Local rough seas. Slight
chance of rain showers.
Friday: Low risk for gale force winds with gusts up to 35 kt.
Areas of rough seas. Slight chance of rain showers.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 11 PM this evening to 11 AM EDT
Tuesday for ANZ232>234.
Small Craft Advisory from 9 PM this evening to noon EDT
Tuesday for ANZ231-251.
Small Craft Advisory from 10 PM this evening to 10 AM EDT
Tuesday for ANZ235-237.
Small Craft Advisory from 7 PM this evening to 4 PM EDT
Tuesday for ANZ250-254>256.
&&
SYNOPSIS...WTB/Nash
NEAR TERM...JWD
SHORT TERM...Nash
LONG TERM...WTB
AVIATION...JWD
MARINE...JWDHazardous weather outlook, May 3, 4:22 PM EDT, 8 hours 43 minutes before
Hazardous Weather Outlook National Weather Service Boston/Norton MA 422 PM EDT Sun May 3 2020 CTZ002>004-MAZ002>024-026-RIZ001>008-042030- 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- 422 PM EDT Sun May 3 2020 This Hazardous Weather Outlook is for northern Connecticut, all of Massachusetts east of Berkshire County, and Rhode Island. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ANZ230>237-250-251-254>256-042030- 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- 422 PM EDT Sun May 3 2020 This Hazardous Weather Outlook is for Massachusetts and Rhode Island coastal waters. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. 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/us.nationalweatherservice.boston.gov You can follow us on Twitter at @NWSBoston
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 4:18 PM EDT | Small Craft Advisory | BOX | 20 hr |
Nearby
Small Craft Advisories in Massachusetts, 2020Every small craft advisory in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.