A series of showers and thunderstorms withe heavy rain caused flash flooding in parts of the Lehigh Valley, Poconos and Philadelphia northwest suburbs during the morning of the 1st. While additional showers and thunderstorms occurred during the afternoon, they were not as heavy. Creeks running higher than normal led to the death of a 13-year-old boy in Philadelphia that afternoon.  The 13-year-old boy and his 11-year-old brother jumped into the swollen Pennypack Creek near Roosevelt Boulevard (U.S. Route 1). They were swept by the swift current over a waterfall before an attempt could even be started to rescue them. One of the rescuers also had to be rescued. Doppler Radar storm total estimates ranged from 1.5 to 5.5 inches in sections of eastern Monroe, southern Lehigh and most of hardest hit Northampton County. The nearly stationary frontal boundary that has been responsible for heavy rain started to retrograde westward as a Bermuda High pressure system moved west from the Atlantic Ocean.

Flash Flood in MONROE, PENNSYLVANIA
From 01-JUL-13 05:00:00 to 01-JUL-13 11:00:00 (EST-5)
Location: SHOEMAKERS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorms with heavy rain caused small stream and poor drainage flash flooding in eastern Monroe County in eastern sections of Smithfield and Middle Smithfield Townships. Doppler Radar storm total estimates reached 5 inches in the eastern parts of the townships.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 01-JUL-13 04:00:00 to 01-JUL-13 11:00:00 (EST-5)
Location: PEN ARGYL
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Torrential rains resulted in flash flooding in northeastern Northampton County.  Several home basements were flooded with two to five feet of water on Messinger Street in Bangor Borough as an underground creek rose and flooded. One family on Messenger Street was rescued. Two garages on the street were also damaged. Fuel oil leaked into the water. Flooding closed Messinger Road, Viaduct Road, South Main Street, and Rutt Road in the borough. No injuries were reported. Power was out to a number of homes for precautionary reasons also because water reached into the ground floor.  The flooding occurred because of an underground creek near the headwaters of Martins Creek.  Numerous streets were also flooded in Penn Argyl Borough.  Flooding waters also damaged a few homes in East Bangor Borough. The axis of heaviest rain extended from Penn Argyl and Washington Township northeastward through Upper Mount Bethel Township in Northampton County. Event precipitation totals included 3.54 inches in Nazareth and 2.07 inches in Bethlehem.  These municipalities were south of where the heaviest rain fell and Doppler Radar storm total estimates reached around 5 inches within the axis of heaviest rain.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 01-JUL-13 06:55:00 to 01-JUL-13 10:30:00 (EST-5)
Location: EARNEST
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Thunderstorms with very heavy rain caused small stream and poor drainage flash flooding across central and northern Montgomery County. Doppler Radar storm total estimates reached 2.0 to 2.5 inches across most of this area. In Towamencin Township, a motorist had to be rescued from flood waters. Event precipitation totals included 3.33 inches in Royersford and 2.53 inches in Hatfield.