Station Name: Ship John Shoal
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
Ship John Shoal Lighthouse
Greenwich, NJ 08323
Cumberland County

GPS Coordinates: 39.30500, -75.37500

Nearby Water Temperatures

Cold Weather Advisory issued January 31 at 2:08PM EST until February 1 at 10:00AM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 2:08 PM
Expires: Sun February 1, 2026, 4:00 AM

* WHAT...Very cold wind chills as low as 7 below. * WHERE...Portions of central and northern Delaware, northeast Maryland, central and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 10 AM EST Sunday. * IMPACTS...The cold wind chills as low as 5 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 31 at 2:08PM EST until February 1 at 10:00AM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 2:08 PM
Expires: Sun February 1, 2026, 4:00 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 5 below zero. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Delaware, Delaware Beaches and Inland Sussex Counties. In New Jersey, Atlantic Coastal Cape May and Cape May Counties. * WHEN...For the Cold Weather Advisory, until 10 AM EST Sunday. For the Wind Advisory, from midnight tonight to 4 PM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Wind Advisory issued January 31 at 2:08PM EST until February 1 at 4:00PM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 2:08 PM
Expires: Sun February 1, 2026, 4:00 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 5 below zero. For the Wind Advisory, north winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...In Delaware, Delaware Beaches and Inland Sussex Counties. In New Jersey, Atlantic Coastal Cape May and Cape May Counties. * WHEN...For the Cold Weather Advisory, until 10 AM EST Sunday. For the Wind Advisory, from midnight tonight to 4 PM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Coastal Flood Advisory issued January 31 at 3:14PM EST until February 1 at 12:00PM EST by NWS Mount Holly NJ

Effective: Sat January 31, 2026, 3:14 PM
Expires: Sun February 1, 2026, 5:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Atlantic, Cape May, Atlantic Coastal Cape May, Coastal Atlantic and Southeastern Burlington. * WHEN...From 5 AM to noon EST Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible. * ADDITIONAL DETAILS...Minor coastal flooding may linger near the times of high tide through Monday. The highest water levels and greatest impacts are forecast to occur during the Sunday morning high tide, when isolated Moderate coastal flood impacts are possible along the back bays. Ice from the back bays could get pushed onshore during high tide, and flood waters could freeze on roadways, further complicating impacts.

A Coastal Flood Advisory means that minor tidal flooding is expected. Minor tidal flooding often results in some road closures. Usually, the most vulnerable roadways will flood. Do not leave your vehicle at a location that is prone to tidal flooding. Do not drive your vehicle through flood waters. The water may be deeper than you think it is. You will be putting yourself in danger and your vehicle may be damaged, leading to costly repairs. Visit the National Water Prediction Service at https://water.noaa.gov/wfo/phi for additional water level and flood impact information for your local tide gauge.

Cold Weather Advisory issued January 31 at 3:12PM EST until February 1 at 1:00PM EST by NWS Baltimore MD/Washington DC

Effective: Sat January 31, 2026, 3:12 PM
Expires: Sat January 31, 2026, 11:30 PM

* WHAT...Very cold wind chills of 0 to 12 below. * WHERE...Washington DC, and portions of central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...From 10 PM this evening to 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

Cold Weather Advisory issued January 31 at 11:24PM EST until February 1 at 1:00PM EST by NWS Baltimore MD/Washington DC

Effective: Sat January 31, 2026, 11:24 PM
Expires: Sun February 1, 2026, 7:30 AM

* WHAT...Very cold wind chills as low as 10 below. * WHERE...Portions of DC, central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...Until 1 PM EST Sunday. * IMPACTS...The cold weather could result in hypothermia or frostbite if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.