Station Name: Delaware River at Fort Mifflin at Philadelphia, PA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
Fort Mifflin Road
Philadelphia, PA 19153
Philadelphia County

GPS Coordinates: 39.8792798, -75.20268029

Nearby Water Temperatures

Air Quality Alert issued July 24 at 3:45PM EDT by NWS Mount Holly NJ

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 24, 2025, 3:45 PM
Expires: Sat July 26, 2025, 12:00 AM

The New Jersey Department of Environmental Protection has issued a code orange air quality alert Friday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/

Air Quality Alert issued July 24 at 3:45PM EDT by NWS Mount Holly NJ

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 24, 2025, 3:45 PM
Expires: Sat July 26, 2025, 12:00 AM

The New Jersey Department of Environmental Protection has issued a code orange air quality alert Friday for Southwestern New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/

Severe Thunderstorm Watch issued July 25 at 1:41PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ

Effective: Fri July 25, 2025, 1:41 PM
Expires: Fri July 25, 2025, 9:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 542 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 15 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX MORRIS SOMERSET SUSSEX WARREN IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CUMBERLAND GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 10 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN NORTHEAST PENNSYLVANIA CARBON MONROE IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, ATLANTIC CITY, BETHLEHEM, BLAIRSTOWN, CAMDEN, CHERRY HILL, DEPTFORD, DOYLESTOWN, EAST BRUNSWICK, EASTON, EDISON, FLEMINGTON, FREEHOLD, GLASSBORO, HAMMONTON, JIM THORPE, MEDIA, MILLVILLE, MOORESTOWN, MORRISTOWN, MOUNT HOLLY, NEW BRUNSWICK, NEWTON, NORRISTOWN, NORTH BRUNSWICK TOWNSHIP, PENNSVILLE, PERTH AMBOY, PHILADELPHIA, READING, SAYREVILLE, SOMERSET, STROUDSBURG, TOMS RIVER, TRENTON, WEST CHESTER, AND WILMINGTON.

Extreme Heat Warning issued July 25 at 12:53PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ

Effective: Fri July 25, 2025, 12:53 PM
Expires: Fri July 25, 2025, 9:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 107 degrees expected. * WHERE...Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...Until 9 PM EDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Monitor the latest forecasts and warnings for updates.

Severe Thunderstorm Watch issued July 25 at 7:20PM EDT until July 25 at 9:00PM EDT by NWS Mount Holly NJ

Effective: Fri July 25, 2025, 7:20 PM
Expires: Fri July 25, 2025, 9:00 PM

SEVERE THUNDERSTORM WATCH 542 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 1 COUNTY IN NORTHERN DELAWARE NEW CASTLE IN NEW JERSEY THIS WATCH INCLUDES 7 COUNTIES IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CUMBERLAND GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 5 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS IN SOUTHEAST PENNSYLVANIA CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ATLANTIC CITY, CAMDEN, CHERRY HILL, DEPTFORD, GLASSBORO, HAMMONTON, MEDIA, MILLVILLE, MOORESTOWN, MOUNT HOLLY, NORRISTOWN, PENNSVILLE, PHILADELPHIA, READING, TOMS RIVER, WEST CHESTER, AND WILMINGTON.