A coastal surface low moved north/northeastward on Wednesday night into Thursday (December 27-28th). Total rainfall amounts across the forecast area varied from about 1.00 inches up to 3.00 inches. The heaviest rains fell west of the I-95 corridor. This heavy rain fell on already saturated soils. As a result, river flooding was prevalent across the Passaic Basin, Raritan Basin, and southeast Pennsylvania basins including the Schuylkill and Brandywine. The Brandywine flooding extended in to Delaware. Smaller streams and rivers across northern New Castle County in Delaware, such as the Christina, Red Clay, and White Clay also flooded.

Flood in DELAWARE, PENNSYLVANIA
From 28-DEC-23 01:00:00 to 28-DEC-23 12:00:00 (EST-5)
Location: MARCUS HOOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Across southeast Pennsylvania and northern Delaware, flooding occurred on the Brandywine River, the Schuylkill River, the Christina River, Red Clay Creek, and White Clay Creek.  The Cooch���s Bridge gauge crested at 12.03 ft. The Langhorne gauge crested at 9.50 ft. The Downingtown gauge crested at 10.34 ft. The Newark gauge crested at 13.25 ft. The Chadd���s Ford gauge crested at 10.25 ft. The Wooddale gauge crested at 6.95 ft. The Graterford gauge crested at 16.30 ft. The Chester gauge crested at 8.19 ft. The Philadelphia gauge crested at 11.27 ft. The Norristown gauge crested at 14.94 ft. The Langhorne gauge crested at 13.87 ft.  All of these crests are above flood stage.

Flood in CHESTER, PENNSYLVANIA
From 28-DEC-23 00:00:00 to 28-DEC-23 13:00:00 (EST-5)
Location: CHADDS FORD JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Across southeast Pennsylvania and northern Delaware, flooding occurred on the Brandywine River, the Schuylkill River, the Christina River, Red Clay Creek, and White Clay Creek.  The Cooch���s Bridge gauge crested at 12.03 ft. The Langhorne gauge crested at 9.50 ft. The Downingtown gauge crested at 10.34 ft. The Newark gauge crested at 13.25 ft. The Chadd���s Ford gauge crested at 10.25 ft. The Wooddale gauge crested at 6.95 ft. The Graterford gauge crested at 16.30 ft. The Chester gauge crested at 8.19 ft. The Philadelphia gauge crested at 11.27 ft. The Norristown gauge crested at 14.94 ft. The Langhorne gauge crested at 13.87 ft.  All of these crests are above flood stage.

Flood in PHILADELPHIA, PENNSYLVANIA
From 28-DEC-23 08:00:00 to 28-DEC-23 14:00:00 (EST-5)
Location: (PHL)PHILADELPHIA IN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Across southeast Pennsylvania and northern Delaware, flooding occurred on the Brandywine River, the Schuylkill River, the Christina River, Red Clay Creek, and White Clay Creek.  The Cooch���s Bridge gauge crested at 12.03 ft. The Langhorne gauge crested at 9.50 ft. The Downingtown gauge crested at 10.34 ft. The Newark gauge crested at 13.25 ft. The Chadd���s Ford gauge crested at 10.25 ft. The Wooddale gauge crested at 6.95 ft. The Graterford gauge crested at 16.30 ft. The Chester gauge crested at 8.19 ft. The Philadelphia gauge crested at 11.27 ft. The Norristown gauge crested at 14.94 ft. The Langhorne gauge crested at 13.87 ft.  All of these crests are above flood stage.

Flood in MONTGOMERY, PENNSYLVANIA
From 28-DEC-23 01:00:00 to 28-DEC-23 17:00:00 (EST-5)
Location: IVY ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Across southeast Pennsylvania and northern Delaware, flooding occurred on the Brandywine River, the Schuylkill River, the Christina River, Red Clay Creek, and White Clay Creek.  The Cooch���s Bridge gauge crested at 12.03 ft. The Langhorne gauge crested at 9.50 ft. The Downingtown gauge crested at 10.34 ft. The Newark gauge crested at 13.25 ft. The Chadd���s Ford gauge crested at 10.25 ft. The Wooddale gauge crested at 6.95 ft. The Graterford gauge crested at 16.30 ft. The Chester gauge crested at 8.19 ft. The Philadelphia gauge crested at 11.27 ft. The Norristown gauge crested at 14.94 ft. The Langhorne gauge crested at 13.87 ft.  All of these crests are above flood stage.

Flood in BUCKS, PENNSYLVANIA
From 28-DEC-23 04:00:00 to 28-DEC-23 13:00:00 (EST-5)
Location: STANWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Across southeast Pennsylvania and northern Delaware, flooding occurred on the Brandywine River, the Schuylkill River, the Christina River, Red Clay Creek, and White Clay Creek.  The Cooch���s Bridge gauge crested at 12.03 ft. The Langhorne gauge crested at 9.50 ft. The Downingtown gauge crested at 10.34 ft. The Newark gauge crested at 13.25 ft. The Chadd���s Ford gauge crested at 10.25 ft. The Wooddale gauge crested at 6.95 ft. The Graterford gauge crested at 16.30 ft. The Chester gauge crested at 8.19 ft. The Philadelphia gauge crested at 11.27 ft. The Norristown gauge crested at 14.94 ft. The Langhorne gauge crested at 13.87 ft.  All of these crests are above flood stage.

Flood in CHESTER, PENNSYLVANIA
From 27-DEC-23 22:37:00 to 28-DEC-23 01:00:00 (EST-5)
Location: CHATWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Montgomery Avenue flooded near Chester County Hospital.

Flood in LEHIGH, PENNSYLVANIA
From 28-DEC-23 00:15:00 to 28-DEC-23 03:00:00 (EST-5)
Location: MACUNGIE KNEPPER ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spring Creek Road was closed in Macungie due to flooding.

Flood in BUCKS, PENNSYLVANIA
From 28-DEC-23 01:07:00 to 28-DEC-23 04:00:00 (EST-5)
Location: SHELLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

PA 309 was closed due to flooding.

Flood in BUCKS, PENNSYLVANIA
From 28-DEC-23 02:30:00 to 28-DEC-23 05:00:00 (EST-5)
Location: WASHINGTON CROSSING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

PA-32 was closed for a period between Taylorsville and Washington Crossing due to flooding.

Flood in BUCKS, PENNSYLVANIA
From 28-DEC-23 02:30:00 to 28-DEC-23 04:00:00 (EST-5)
Location: SHELLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

PA-309 was closed due to flooding between Cherry Road and Zion Hill Road.

Flood in CHESTER, PENNSYLVANIA
From 28-DEC-23 08:10:00 to 28-DEC-23 10:00:00 (EST-5)
Location: VALLEY FORGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Pawlings Road at the Schuylkill River was flooded.

Flood in MONTGOMERY, PENNSYLVANIA
From 28-DEC-23 08:15:00 to 28-DEC-23 10:00:00 (EST-5)
Location: ARCOLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A bridge over Perkiomen Creek near Arcola Road was closed due to flooding.