Alert archive / New Jersey / Small Craft Advisories in 2026
Small Craft Advisory 44, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this small craft advisory at Apr 18, 2026, 2:37 AM EDT. It took effect at Apr 19, 2026, 8:00 AM EDT. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Apr 18, 2026, 2:37 AM EDT (06:37 UTC)
- In effect from
- Apr 19, 2026, 8:00 AM EDT
- Expired
- Apr 19, 2026, 9:57 PM EDT
- In force
- 14 hr
- Issued by
- NWS Philadelphia/Mount Holly
The text
As transmitted.
668 WHUS71 KPHI 180637 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 237 AM EDT Sat Apr 18 2026 ANZ450>455-181945- /O.NEW.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 237 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft expected. * WHERE...Atlantic waters adjacent to New Jersey and Delaware. * WHEN...From 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ430-431-181945- /O.NEW.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 237 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay. * WHEN...From 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Johnson
8 follow-up statements
005 WHUS71 KPHI 181221 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 821 AM EDT Sat Apr 18 2026 ANZ451>455-190130- /O.NEW.KPHI.MF.Y.0010.260418T1221Z-260418T2000Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 821 AM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 nm or less. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt expected. * WHERE...Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM, Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM, Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, from 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ431-190130- /O.NEW.KPHI.MF.Y.0010.260418T1221Z-260418T2000Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 821 AM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 nm or less. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN...For the Dense Fog Advisory, until 4 PM EDT this afternoon. For the Small Craft Advisory, from 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ481>483-485-182000- /O.NEW.KPHI.MF.Y.0010.260418T1221Z-260418T2000Z/ Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM- Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM- Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM- Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 821 AM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Dense fog will reduce visibility to 1 nm or less. * WHERE...Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM, Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM, Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM and Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ450-190130- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- 821 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft expected. * WHERE...Atlantic waters adjacent to New Jersey and Delaware. * WHEN...From 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ430-190130- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 821 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay. * WHEN...From 8 AM to 6 PM EDT 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. && $$ Kruzdlo
598 WHUS71 KPHI 181934 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 334 PM EDT Sat Apr 18 2026 ANZ451>455-190845- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T0500Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 334 PM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 1 AM EDT SUNDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 nm or less. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt expected. * WHERE...Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM, Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM, Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM. * WHEN...For the Dense Fog Advisory, until 1 AM EDT Sunday. For the Small Craft Advisory, from 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ431-190845- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T0500Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 334 PM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 1 AM EDT SUNDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1 nm or less. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN...For the Dense Fog Advisory, until 1 AM EDT Sunday. For the Small Craft Advisory, from 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...There is a small chance for gale conditions, particularly at the mouth of the Delaware Bay late Sunday Morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ481>483-485-190500- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T0500Z/ Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM- Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM- Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM- Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 334 PM EDT Sat Apr 18 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 1 AM EDT SUNDAY... * WHAT...Dense fog will reduce visibility to 1 nm or less. * WHERE...Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM, Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM, Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM and Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...Until 1 AM EDT Sunday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ450-190845- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- 334 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM. * WHEN...From 8 AM to 6 PM EDT 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. && $$ ANZ430-190845- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 334 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM TO 6 PM EDT SUNDAY... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...From 8 AM to 6 PM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ MJL
510 WHUS71 KPHI 190448 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 1248 AM EDT Sun Apr 19 2026 ANZ431-453>455-191800- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1000Z/ /O.UPG.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ /O.NEW.KPHI.GL.W.0010.260419T1200Z-260419T2100Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 1248 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... ...GALE WARNING IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM. For the Gale Warning, northwest winds 15 to 25 kt with gusts up to 35 kt and seas 3 to 5 ft expected. * WHERE...In Delaware Bay Waters, Delaware Bay waters south of East Point NJ to Slaughter Beach DE. In Atlantic coastal waters, Coastal waters from Great Egg Inlet NJ to Fenwick Island DE out 20 NM. * WHEN...For the Dense Fog Advisory, until 6 AM EDT early this morning. For the Gale Warning, from 8 AM this morning to 5 PM EDT this afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The strongest winds are expected in the vicinity of the mouth of the Delaware Bay. 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. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ485-191800- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1000Z/ /O.NEW.KPHI.GL.W.0010.260419T1200Z-260419T2100Z/ Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 1248 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... ...GALE WARNING IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 35 kt and seas 4 to 7 ft expected. * WHERE...Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...For the Dense Fog Advisory, until 6 AM EDT early this morning. For the Gale Warning, from 8 AM this morning to 5 PM EDT this afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ451-452-191800- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1000Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- 1248 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft expected. * WHERE...Coastal waters from Manasquan Inlet to Great Egg Inlet NJ out 20 NM. * WHEN...For the Dense Fog Advisory, until 6 AM EDT early this morning. For the Small Craft Advisory, from 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ481>483-191000- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1000Z/ Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM- Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM- Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM- 1248 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 6 AM EDT EARLY THIS MORNING... * WHAT...Dense fog will reduce visibility to 1/2 NM or less. * WHERE...Waters from Manasquan Inlet NJ to Cape May NJ from 20 to 60 NM. * WHEN...Until 6 AM EDT early this morning. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ450-191800- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- 1248 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt expected. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM. * WHEN...From 8 AM this morning to 6 PM EDT 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. && $$ ANZ430-191800- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 1248 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...From 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Johnson
014 WHUS71 KPHI 190819 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 419 AM EDT Sun Apr 19 2026 ANZ431-453>455-485-192100- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ /O.CON.KPHI.GL.W.0010.260419T1200Z-260419T2100Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 419 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to as low as 1/2 NM. For the Gale Warning, northwest winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 6 ft expected. * WHERE...In Delaware Bay Waters, Delaware Bay waters south of East Point NJ to Slaughter Beach DE. In Atlantic coastal waters, Coastal waters from Great Egg Inlet NJ to Fenwick Island DE out 20 NM and Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...For the Dense Fog Advisory, until 9 AM EDT this morning. For the Gale Warning, from 8 AM this morning to 5 PM EDT this afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. Low visibility will make navigation difficult. * ADDITIONAL DETAILS...The strongest winds are expected in the vicinity of the mouth of the Delaware Bay. 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. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ450-192130- /O.EXB.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- 419 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to as low as 1/2 NM. For the Small Craft Advisory, northwest winds 10 to 20 kt with gusts up to 30 kt expected. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM. * WHEN...For the Dense Fog Advisory, until 9 AM EDT this morning. For the Small Craft Advisory, from 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ480-191300- /O.EXB.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM- 419 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Dense fog will reduce visibility to as low as 1/2 NM. * WHERE...Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ451-452-192130- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- 419 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to as low as 1/2 NM. For the Small Craft Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft expected. * WHERE...Coastal waters from Manasquan Inlet to Great Egg Inlet NJ out 20 NM. * WHEN...For the Dense Fog Advisory, until 9 AM EDT this morning. For the Small Craft Advisory, from 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ481>483-191300- /O.EXT.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM- Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM- Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM- 419 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Dense fog will reduce visibility to as low as 1/2 NM. * WHERE...Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM, Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM and Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ ANZ430-192130- /O.CON.KPHI.SC.Y.0044.260419T1200Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 419 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters expected. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...From 8 AM this morning to 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Johnson
945 WHUS71 KPHI 191259 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 859 AM EDT Sun Apr 19 2026 ANZ431-453>455-485-192100- /O.EXP.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ /O.CON.KPHI.GL.W.0010.000000T0000Z-260419T2100Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 859 AM EDT Sun Apr 19 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... ...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 6 ft. * WHERE...In Delaware Bay Waters, Delaware Bay waters south of East Point NJ to Slaughter Beach DE. In Atlantic coastal waters, Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM, Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM, Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM and Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...Until 5 PM EDT this afternoon. * 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. && $$ ANZ450>452-192200- /O.EXP.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ /O.CON.KPHI.SC.Y.0044.000000T0000Z-260419T2200Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- 859 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... ...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 ft. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM and Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ480>483-191400- /O.EXP.KPHI.MF.Y.0010.000000T0000Z-260419T1300Z/ Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM- Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM- Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM- Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM- 859 AM EDT Sun Apr 19 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... Visibility has improved above 1 NM. Thus, the Marine Dense Fog Advisory will expire. $$ ANZ430-192200- /O.CON.KPHI.SC.Y.0044.000000T0000Z-260419T2200Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 859 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Hoeflich
314 WHUS71 KPHI 191805 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 205 PM EDT Sun Apr 19 2026 ANZ431-200300- /O.CAN.KPHI.GL.W.0010.000000T0000Z-260419T2100Z/ /O.EXB.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 205 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters. * WHERE...Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN...Until 11 PM EDT 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. && $$ ANZ453>455-485-192100- /O.CON.KPHI.GL.W.0010.000000T0000Z-260419T2100Z/ Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 205 PM EDT Sun Apr 19 2026 ...GALE WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON... * WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 5 ft. * WHERE...Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM, Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM, Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM and Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM. * WHEN...Until 5 PM EDT this afternoon. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. && $$ ANZ450>452-200300- /O.EXT.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- 205 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM and Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM. * WHEN...Until 11 PM EDT 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. && $$ ANZ430-200300- /O.EXT.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- 205 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Hoeflich
661 WHUS71 KPHI 192055 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 455 PM EDT Sun Apr 19 2026 ANZ453>455-200300- /O.CAN.KPHI.GL.W.0010.000000T0000Z-260419T2100Z/ /O.EXA.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 455 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...GALE WARNING IS CANCELLED... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt. * WHERE...Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM, Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM and Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM. * WHEN...Until 11 PM EDT 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. && $$ ANZ485-192200- /O.CAN.KPHI.GL.W.0010.000000T0000Z-260419T2100Z/ Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM- 455 PM EDT Sun Apr 19 2026 ...GALE WARNING IS CANCELLED... Winds have fallen below 34 knots. Therefore, the Gale Warning has been cancelled. $$ ANZ450>452-200300- /O.CON.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- 455 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt. * WHERE...Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM and Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM. * WHEN...Until 11 PM EDT 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. && $$ ANZ430-431-200300- /O.CON.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- 455 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... * WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and rough waters. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE and Delaware Bay waters south of East Point NJ to Slaughter Beach DE. * WHEN...Until 11 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AKL
027 WHUS71 KPHI 200157 MWWPHI URGENT - MARINE WEATHER MESSAGE National Weather Service Mount Holly NJ 957 PM EDT Sun Apr 19 2026 ANZ430-431-450>455-200300- /O.CAN.KPHI.SC.Y.0044.000000T0000Z-260420T0300Z/ Delaware Bay waters north of East Point NJ to Slaughter Beach DE- Delaware Bay waters south of East Point NJ to Slaughter Beach DE- Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM- Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM- Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM- Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM- Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM- Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM- 957 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds and seas have fallen below 25 knots and 5 feet, respectively. Therefore, the Small Craft Advisory is cancelled. $$ AKL
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 Philadelphia/Mount Holly wrote its last area forecast discussion before this small craft advisory went out at Apr 18, 2:31 AM EDT, 6 minutes earlier. Its key messages:
- 1. A strong cold front will bring rain showers to the area Tonight into Sunday. 2. Widespread minor tidal flooding along the Atlantic coasts of New Jersey and Delaware, Delaware Bay, and the tidal Delaware River with tonight's high tide. 3. Much colder air early next week with frost/freeze conditions, followed by a return to above average temperatures later in the week.
Area forecast discussion, Apr 18, 2:31 AM EDT, 6 minutes before
Area Forecast Discussion
National Weather Service Mount Holly NJ
231 AM EDT Sat Apr 18 2026
.WHAT HAS CHANGED...
Increasing confidence in the timing of the cold front late
Tonight into Sunday Morning.
A Small Craft Advisory has been issued for Sunday.
&&
.KEY MESSAGES...
1. A strong cold front will bring rain showers to the area
Tonight into Sunday.
2. Widespread minor tidal flooding along the Atlantic coasts of New
Jersey and Delaware, Delaware Bay, and the tidal Delaware River with
tonight's high tide.
3. Much colder air early next week with frost/freeze conditions,
followed by a return to above average temperatures later in the
week.
&&
.DISCUSSION...
KEY MESSAGE 1...A strong cold front will bring rain showers to
the area Saturday night into Sunday.
A cold front will move into the area late Tonight and should
move off the coast by mid day Sunday. This front, combined with
the surface low sliding along the front, will provide enough
lift for widespread rain across the area. Chances for measurable
rain range from 70 to 80 percent. That being said, this is
unlikely to result in substantial rain amounts. Storm (shower)
motions should be relatively fast, and the front itself has
trended faster. Thus, rain amounts are forecast to be a few
hundredths of an inch up to one half an inch.
In terms of other hazards, instability, especially surface or
low level based instability is forecast to be very limited (less
than 50 J/kg of CAPE). Thus the risk for other thunderstorm
hazards is very low. That being said, there is some very
elevated instability (for parcels above 850 mb), especially west
of the fall line, so can't rule out a rumble of thunder or gusty
winds.
Though this is a strong cold front, the temperature difference
won't feel as dramatic as it could, thanks to a marine layer
staying mostly in place over our region today. None the less,
for most inland areas, temperatures on Sunday will be 5 to 20
degrees colder as compared to Saturday; highs on Saturday will
range from the mid 50s to mid 70s, compared with highs on Sunday
ranging from the mid 40s to mid 60s.
KEY MESSAGE 2...Widespread minor tidal flooding along the Atlantic
coasts of New Jersey and Delaware, Delaware Bay, and the tidal
Delaware River with tonight's high tide.
A Coastal Flood Advisory remains in effect for the Atlantic coasts
of New Jersey and Delaware, as well as along Delaware Bay and up the
tidal Delaware River for the high tide cycles tonight.
High astronomical tides associated with the New Moon that occurred
yesterday and onshore flow today and tonight is forecast to result
in widespread minor tidal flooding with tonight's high tide along
the Atlantic coasts of New Jersey and Delaware, Delaware Bay, and
the tidal Delaware River. A northeast to east wind will become
southeasterly by later today into this evening, with surge values
increasing to near 1 foot above normal. This will put most tidal
areas into minor flood stage during high tide tonight.
A modest offshore wind will develop in the wake of a cold front on
Sunday, which should limit the risk of any additional flooding for
Sunday night's high tide.
No tidal flooding is forecast for our portion of the Eastern Shore
of Chesapeake Bay.
KEY MESSAGE 3...Much colder air early next week with frost/freeze
conditions, followed by a return to above average temperatures later
in the week.
As a strong upper-level trough pivots across the East Sunday night
and Monday, surface high pressure with a much colder air mass with
it will be in place. The high itself will settle over our area
Monday night into Tuesday morning before shifting offshore. A breeze
will occur Sunday night and Monday with a lingering pressure
gradient ahead of surface high pressure. While it will be much
colder Sunday night, just enough wind may limit frost formation.
Much lighter to nearly calm wind Monday night along with a mostly
clear sky should result in more efficient radiational cooling
conditions. As a result, widespread frost and/or freeze conditions
are probable early Tuesday morning. Frost early Tuesday morning
could be somewhat limited given a much drier low-level air mass in
place, however areas outside of the larger cities and away from the
immediate coast area forecast to drop to and below freezing. The
recent excessive warmth has quickly started the vegetation sooner,
therefore all of our counties are now active regarding the growing
season.
High temperatures both Monday and Tuesday are forecast to be in the
40s and 50s across the region, which is several degrees below
average. A return, southerly, flow becomes established during
Tuesday and it continues into Wednesday. This along with an increase
in warm air advection and rising heights will result in temperatures
climbing back above average Wednesday through Friday. A warm front
may arrive at the end of the week. As of now, the chance for a much
needed widespread rainfall Monday through Friday of next week looks
to be very low.
&&
.AVIATION /06Z SATURDAY THROUGH WEDNESDAY/...
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG,
KMIV, KACY and surrounding areas.
Through Today...low clouds, with ceilings ranging from 700 to
1500 ft AGL will persist through 12Z. The low clouds are likely
to clear from KRDG the earliest, most other sites by 15Z. At
KACY, there is a 40% chance that the low clouds (at least MVFR)
persist through the day. For the other TAF sites, once the low
clouds dissipate, conditions should stay VFR through at least
21Z. After 21Z, another low cloud deck may start encroaching on
the area, though this is more likely not to move back in until
after 00Z. Winds have already begun to shift to southeasterly,
and should generally favor that direction, with wind speeds
around 10 kt or less.
Tonight...Another low cloud deck will move over the region, with
widespread MVFR, and localized IFR conditions expected.
Additionally, some visibility restrictions to MVFR with SHRA is
possible, particularly after 06Z. Winds should generally favor
southeasterly through most of the night, with wind speeds of 5
to 15 kt.
Outlook...
Sunday...Widespread MVFR and localized IFR conditions continue
(mostly due to low clouds). SHRA are likely, but an isolated
thunderstorm cannot be ruled out. Expect an abrupt shift to
northwesterly winds before 15Z, with a subsequent increase in
wind speeds (gusts up to 25 kt) as well.
Sunday night through Tuesday...VFR. West-northwest wind gusts to
around 20 knots Monday, quickly diminishing Monday night.
Wednesday...Some MVFR conditions are possible at times.
&&
.MARINE...
Through Tonight...Winds and seas should stay below Small Craft
Advisory criteria.
Sunday...Winds will shift to northwesterly and increase quickly
behind a cold front Sunday Morning. Expect SCA conditions on all
waters through the day time. There is a 40% chance that wind
speeds exceed gale criteria for a brief period behind the front,
particularly at the mouth of the Delaware Bay. However, for now,
widespread SCA looks more likely, so have issued an SCA for all
waters.
Outlook...
Sunday night through Wednesday...The conditions are anticipated to
be below Small Craft Advisory criteria.
&&
.PHI WATCHES/WARNINGS/ADVISORIES...
PA...Coastal Flood Advisory from 1 AM to 6 AM EDT Sunday for PAZ070-
071-106.
NJ...Coastal Flood Advisory from 11 PM this evening to 3 AM EDT
Sunday for NJZ016.
Coastal Flood Advisory from 8 PM this evening to 2 AM EDT
Sunday for NJZ012>014-020>027.
Coastal Flood Advisory from 1 AM to 6 AM EDT Sunday for
NJZ017>019.
DE...Coastal Flood Advisory from 11 PM this evening to 3 AM EDT
Sunday for DEZ001.
Coastal Flood Advisory from 8 PM this evening to 2 AM EDT
Sunday for DEZ002>004.
MD...None.
MARINE...None.
&&
DISCUSSION...Gorse/Johnson
AVIATION...Gorse/Johnson
MARINE...Gorse/JohnsonHazardous weather outlook, Apr 17, 3:30 AM EDT, 23 hours 7 minutes before
Hazardous Weather Outlook National Weather Service Mount Holly NJ 330 AM EDT Fri Apr 17 2026 MDZ012-015-019-020-180900- Kent MD-Queen Annes-Talbot-Caroline- 330 AM EDT Fri Apr 17 2026 This Hazardous Weather Outlook is for northeast Maryland. .DAY ONE...Today and tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 8:21 AM EDT | Marine Dense Fog Advisory | PHI | 25 hr | |
| Apr 18, 1:02 PM EDT | Freeze Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 37 hr |
Nearby
Small Craft Advisories in New Jersey, 2026Every small craft advisory in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.