Alert archive / New Jersey / Small Craft Advisories in 2021

Small Craft Advisory 39, NWS Philadelphia/Mount Holly

April 20, 2021

NWS Philadelphia/Mount Holly issued this small craft advisory at Apr 20, 2021, 3:19 AM EDT. It took effect at Apr 21, 2021, 2:56 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 20, 2021, 3:19 AM EDT (07:19 UTC)
In effect from
Apr 21, 2021, 2:56 AM EDT
Expired
Apr 21, 2021, 2:54 PM EDT
In force
12 hr
Issued by
NWS Philadelphia/Mount Holly

The text

As transmitted.

060 
WHUS71 KPHI 200719
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
319 AM EDT Tue Apr 20 2021

ANZ450>455-202100-
/O.NEW.KPHI.SC.Y.0039.210421T1600Z-210421T2200Z/
/O.NEW.KPHI.GL.A.0007.210421T2200Z-210422T2200Z/
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-
319 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TO 6 PM EDT
WEDNESDAY...
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 20 
  kt with gusts up to 25 kt and seas 3 to 5 ft expected. For the 
  Gale Watch, west winds 20 to 30 kt with gusts up to 40 kt and 
  seas 3 to 6 ft possible.

* WHERE...The Atlantic coastal waters of New Jersey and Delaware. 

* WHEN...For the Small Craft Advisory, from noon to 6 PM EDT 
  Wednesday. For the Gale Watch, from Wednesday evening through 
  Thursday afternoon.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

ANZ430-431-202100-
/O.NEW.KPHI.SC.Y.0039.210421T1600Z-210421T2200Z/
/O.NEW.KPHI.GL.A.0007.210421T2200Z-210422T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
319 AM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TO 6 PM EDT
WEDNESDAY...
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
AFTERNOON...

* WHAT...For the Small Craft Advisory, southwest winds 15 to 20 
  kt with gusts up to 30 kt and choppy waters expected. For the 
  Gale Watch, northwest winds 20 to 25 kt with gusts up to 35 kt 
  and very rough waters possible.

* WHERE...Delaware Bay.

* WHEN...For the Small Craft Advisory, from noon to 6 PM EDT 
  Wednesday. For the Gale Watch, from Wednesday evening through 
  Thursday afternoon.

* IMPACTS...Strong winds can cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should consider altering plans to avoid possible
hazardous conditions.  Remain in port, seek safe harbor, alter
course, and/or secure the vessel for severe wind and seas.

&&

$$

CMS
4 follow-up statements
037 
WHUS71 KPHI 201923
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
323 PM EDT Tue Apr 20 2021

ANZ450>455-211000-
/O.EXT.KPHI.SC.Y.0039.210421T1000Z-210421T2200Z/
/O.UPG.KPHI.GL.A.0007.210421T2200Z-210422T2200Z/
/O.NEW.KPHI.GL.W.0013.210421T2200Z-210422T2200Z/
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-
323 PM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 AM TO 6 PM EDT
WEDNESDAY...
...GALE WARNING IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM EDT
THURSDAY...

* WHAT...For the Gale Warning, west winds 20 to 30 kt with gusts 
  up to 40 kt and seas 3 to 5 ft expected. For the Small Craft 
  Advisory, south winds 15 to 20 kt with gusts up to 30 kt and 
  seas 3 to 6 ft expected.

* WHERE...Portions of Atlantic coastal waters. 

* WHEN...For the Gale Warning, from 6 PM Wednesday to 6 PM EDT 
  Thursday. For the Small Craft Advisory, from 6 AM to 6 PM EDT 
  Wednesday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A cold front approaches during the day, and
  a line of thunderstorms producing damaging winds, small hail,
  and isolated lightning strikes will develop ahead of that cold
  front and affect the ocean waters Wednesday afternoon. Winds
  will abruptly shift to the west behind the cold front.

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 severe conditions.

&&

$$

ANZ430-431-211000-
/O.EXT.KPHI.SC.Y.0039.210421T1200Z-210421T2200Z/
/O.UPG.KPHI.GL.A.0007.210421T2200Z-210422T2200Z/
/O.NEW.KPHI.GL.W.0013.210421T2200Z-210422T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
323 PM EDT Tue Apr 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 8 AM TO 6 PM EDT
WEDNESDAY...
...GALE WARNING IN EFFECT FROM 6 PM WEDNESDAY TO 6 PM EDT
THURSDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and rough waters expected. For the Small 
  Craft Advisory, southwest 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 and Delaware Bay waters south of East Point 
  NJ to Slaughter Beach DE.

* WHEN...For the Gale Warning, from 6 PM Wednesday to 6 PM EDT 
  Thursday. For the Small Craft Advisory, from 8 AM to 6 PM EDT 
  Wednesday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A cold front approaches during the day, 
  and a line of thunderstorms producing damaging winds, small 
  hail, and isolated lightning strikes will develop ahead of that 
  cold front and affect Delaware Bay late Wednesday morning and 
  early Wednesday afternoon. Winds will abruptly shift to the west
  behind the cold front.

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 severe conditions.

&&

$$

MPS
387 
WHUS71 KPHI 210656
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
256 AM EDT Wed Apr 21 2021

ANZ450>455-212000-
/O.EXT.KPHI.SC.Y.0039.210421T0656Z-210421T2200Z/
/O.CON.KPHI.GL.W.0013.210421T2200Z-210422T2200Z/
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-
256 AM EDT Wed Apr 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
EDT THURSDAY...

* WHAT...For the Gale Warning, west winds 20 to 30 kt with gusts 
  up to 40 kt and seas 3 to 5 ft expected. For the Small Craft 
  Advisory, south winds 15 to 20 kt with gusts up to 30 kt and 
  seas 3 to 6 ft expected.

* WHERE...Portions of Atlantic coastal waters.

* WHEN...For the Gale Warning, from 6 PM this evening to 6 PM 
  EDT Thursday. For the Small Craft Advisory, until 6 PM EDT 
  this evening.

* 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 severe conditions.

&&

$$

ANZ430-431-212000-
/O.EXT.KPHI.SC.Y.0039.210421T0656Z-210421T2200Z/
/O.CON.KPHI.GL.W.0013.210421T2200Z-210422T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
256 AM EDT Wed Apr 21 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
EDT THURSDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and rough waters expected. For the Small 
  Craft Advisory, southwest 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 and Delaware Bay waters south of East Point 
  NJ to Slaughter Beach DE.

* WHEN...For the Gale Warning, from 6 PM this evening to 6 PM 
  EDT Thursday. For the Small Craft Advisory, until 6 PM EDT 
  this evening.

* 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 severe conditions.

&&

$$
532 
WHUS71 KPHI 211819
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
219 PM EDT Wed Apr 21 2021

ANZ430-431-220730-
/O.CAN.KPHI.SC.Y.0039.000000T0000Z-210421T2200Z/
/O.EXT.KPHI.GL.W.0013.210421T1819Z-210422T2200Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
219 PM EDT Wed Apr 21 2021

...GALE WARNING NOW IN EFFECT UNTIL 6 PM EDT THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 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 6 PM EDT Thursday.

* 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 severe conditions.

&&

$$

ANZ450>455-220730-
/O.CON.KPHI.SC.Y.0039.000000T0000Z-210421T2200Z/
/O.CON.KPHI.GL.W.0013.210421T2200Z-210422T2200Z/
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-
219 PM EDT Wed Apr 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM
EDT THURSDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and seas 3 to 6 ft expected. For the Small 
  Craft Advisory, southwest winds 15 to 25 kt with gusts up to 
  30 kt and seas 3 to 5 ft.

* WHERE...Portions of Atlantic coastal waters. 

* WHEN...For the Gale Warning, from 6 PM this evening to 6 PM 
  EDT Thursday. For the Small Craft Advisory, until 6 PM EDT 
  this evening.

* IMPACTS...Strong winds will cause hazardous seas which could
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...A strong cold front will move offshore
  around 4 PM and cause an abrupt increase in offshore winds to
  near gale force.

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 severe conditions.

&&

$$

Staarmann
934 
WHUS71 KPHI 211854
MWWPHI

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mount Holly NJ
254 PM EDT Wed Apr 21 2021

ANZ450>455-220800-
/O.CAN.KPHI.SC.Y.0039.000000T0000Z-210421T2200Z/
/O.EXT.KPHI.GL.W.0013.210421T1854Z-210423T0000Z/
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-
254 PM EDT Wed Apr 21 2021

...GALE WARNING NOW IN EFFECT UNTIL 8 PM EDT THURSDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...West winds 15 to 25 kt with gusts up to 35 kt and seas 
  3 to 6 ft.

* WHERE...Portions of Atlantic coastal waters. 

* WHEN...Until 8 PM EDT Thursday.

* 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 severe conditions.

&&

$$

ANZ430-431-220800-
/O.EXT.KPHI.GL.W.0013.000000T0000Z-210423T0000Z/
Delaware Bay waters north of East Point NJ to Slaughter Beach DE-
Delaware Bay waters south of East Point NJ to Slaughter Beach DE-
254 PM EDT Wed Apr 21 2021

...GALE WARNING NOW IN EFFECT UNTIL 8 PM EDT THURSDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 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 8 PM EDT Thursday.

* 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 severe conditions.

&&

$$

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 3:19 AM EDTGale WatchPHI12 hr
Apr 20, 3:23 PM EDTGale WarningPHI52 hr

Nearby

Small Craft Advisories in New Jersey, 2021Every small craft advisory in 2021

Sources

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