Station Name: Marcus Hook
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
Delaware River
Marcus Hook, PA 19061
Delaware County

GPS Coordinates: 39.811667, -75.409444

Nearby Water Temperatures

Coastal Flood Advisory issued April 18 at 4:00PM EDT until April 19 at 6:00AM EDT by NWS Mount Holly NJ

Effective: Sat April 18, 2026, 4:00 PM
Expires: Sun April 19, 2026, 6:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In New Jersey, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Philadelphia and Lower Bucks. * WHEN...From 1 AM to 6 AM EDT Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.

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.

Freeze Watch issued April 18 at 1:02PM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ

Effective: Sat April 18, 2026, 1:02 PM
Expires: Sun April 19, 2026, 2:15 AM

* WHAT...Sub-freezing temperatures with lows in the 20s. * WHERE...Portions of central, northern, northwest and southern New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation.

A Freeze Watch means sub-freezing temperatures are possible. These conditions could kill crops and other sensitive vegetation.

Coastal Flood Advisory issued April 18 at 4:00PM EDT until April 19 at 3:00AM EDT by NWS Mount Holly NJ

Effective: Sat April 18, 2026, 4:00 PM
Expires: Sun April 19, 2026, 3:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, New Castle. In New Jersey, Salem. * WHEN...From 11 PM this evening to 3 AM EDT Sunday. * IMPACTS...At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.

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.

Coastal Flood Advisory issued April 18 at 4:00PM EDT until April 19 at 2:00AM EDT by NWS Mount Holly NJ

Effective: Sat April 18, 2026, 4:00 PM
Expires: Sun April 19, 2026, 2:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...In Delaware, Kent. In New Jersey, Cumberland. * WHEN...From 8 PM this evening to 2 AM EDT 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.

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.

Coastal Flood Advisory issued April 18 at 4:00PM EDT until April 19 at 2:00AM EDT by NWS Mount Holly NJ

Effective: Sat April 18, 2026, 4:00 PM
Expires: Sun April 19, 2026, 2:00 AM

* WHAT...Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE...Ocean, Atlantic, Coastal Atlantic, Coastal Ocean and Southeastern Burlington. * WHEN...From 8 PM this evening to 2 AM EDT 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.

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.