Tropical Storm Isaias brought high winds, heavy rain, several tornadoes, and coastal flooding to the mid-Atlantic region, becoming the most impactful tropical cyclone to impact most of the region since Sandy in 2012. Flash flooding as a result of heavy rain caused two direct deaths from this event...one in Lehigh County and the other in Montgomery County.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:05:00 to 04-AUG-20 13:00:00 (EST-5)
Location: VALLEY FORGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along Valley Creek in the Valley Forge area.

Flash Flood in LEHIGH, PENNSYLVANIA
From 04-AUG-20 11:45:00 to 04-AUG-20 14:00:00 (EST-5)
Location: MACUNGIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Brookside Road was closed at Buckeye Road in Lower Macungie Township due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:45:00 to 04-AUG-20 13:00:00 (EST-5)
Location: CROMBY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along French Creek in Phoenixville.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 11:10:00 to 04-AUG-20 13:00:00 (EST-5)
Location: CEDARVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several water rescues took place in North Coventry Township.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:40:00 to 04-AUG-20 13:00:00 (EST-5)
Location: EXTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads in Exton were closed due to flooding, including sections of Business US Route 30 and PA Route 100.

Flash Flood in LEHIGH, PENNSYLVANIA
From 04-AUG-20 11:45:00 to 04-AUG-20 14:00:00 (EST-5)
Location: LANARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 309 was closed at West Saucon Valley Road in Upper Saucon Township due to flooding.

Flash Flood in BERKS, PENNSYLVANIA
From 04-AUG-20 11:10:00 to 04-AUG-20 13:00:00 (EST-5)
Location: NEW BERLINVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 100 was closed at Swamp Creek Road in Colebrookdale Township due to flooding.

Flood in BERKS, PENNSYLVANIA
From 04-AUG-20 11:30:00 to 04-AUG-20 13:30:00 (EST-5)
Location: BERNHARTS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Sections of PA Route 12 in Muhlenberg Township were closed due to flooding.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 12:00:00 to 04-AUG-20 14:00:00 (EST-5)
Location: CHAPMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Grouse Drive was closed near Whitetail Deer Drive in Moore Township due to flooding.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 12:00:00 to 04-AUG-20 14:00:00 (EST-5)
Location: SLATINGTON ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread roadway flooding in Lehigh Township.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:45:00 to 04-AUG-20 14:00:00 (EST-5)
Location: CHERRY HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

East Lawn Road was closed in Eastlawn Gardens due to flooding.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:45:00 to 04-AUG-20 14:00:00 (EST-5)
Location: BETHLEHEM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed due to flooding in Bethlehem.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 09:15:00 to 04-AUG-20 11:30:00 (EST-5)
Location: LEWISVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 841 was closed near Lewisville Road in Elk Township due to flooding.

Flash Flood in LEHIGH, PENNSYLVANIA
From 04-AUG-20 11:45:00 to 04-AUG-20 14:00:00 (EST-5)
Location: CHAPMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 78 was closed at the US Route 22 interchange in Upper Macungie Township due to flooding.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:30:00 to 04-AUG-20 13:30:00 (EST-5)
Location: KEPLERS MILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Several roads were closed in Palmer Township and Forks Township, including Tatamy Road, Bushkill Park Drive and Arndt Road.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 09:40:00 to 04-AUG-20 12:00:00 (EST-5)
Location: MARCUS HOOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Blueball Avenue was closed near West 10th Street in Marcus Hook due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:10:00 to 04-AUG-20 12:30:00 (EST-5)
Location: OAKBOURNE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Birmingham Road was closed near Riflery Drive in East Bradford Township due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 09:50:00 to 04-AUG-20 12:00:00 (EST-5)
Location: COCHRANVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 926 was closed near PA Route 10 in Upper Oxford Township due to flooding.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 10:10:00 to 04-AUG-20 12:30:00 (EST-5)
Location: TRAINER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Concord Road was closed near Interstate 95 in Chester Township due to flooding.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 10:15:00 to 04-AUG-20 12:30:00 (EST-5)
Location: DARLING
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Route 1 was closed near Valleybrook Road in Chester Heights due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:40:00 to 04-AUG-20 12:30:00 (EST-5)
Location: DOWNINGTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Route 30 was closed near the Lancaster Avenue interchange in East Caln Township due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:20:00 to 04-AUG-20 12:30:00 (EST-5)
Location: REECEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Swinehart Road was closed near Beaver Creek Road in West Brandywine Township due to flooding.

Flash Flood in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 09:35:00 to 04-AUG-20 11:30:00 (EST-5)
Location: WEST PHILADELPHIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

South University Avenue was closed at South 38th Street in Philadelphia due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:45:00 to 04-AUG-20 13:00:00 (EST-5)
Location: LIONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

North Ship Road was closed at Newcomen Road in Uwchlan Township due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 11:00:00 to 04-AUG-20 13:00:00 (EST-5)
Location: BUCKTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 23 was closed at PA Route 100 in South Coventry Township due to flooding.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 10:00:00 to 04-AUG-20 12:00:00 (EST-5)
Location: SPRINGFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 320 was closed at Old Marple Road in Marple Township due to flooding.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:15:00 to 04-AUG-20 12:30:00 (EST-5)
Location: KING OF PRUSSIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 76 was closed at the US Route 202 interchange in King of Prussia due to flooding.  Sections of US 202 were also closed due to flooding.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 10:15:00 to 04-AUG-20 12:30:00 (EST-5)
Location: ARDMORE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Haverford Road was closed at Karakung Drive in Ardmore due to flooding.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:35:00 to 04-AUG-20 12:30:00 (EST-5)
Location: BETZWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

PA Route 363 was closed at Audubon Road in Audubon due to flooding.

Flash Flood in BUCKS, PENNSYLVANIA
From 04-AUG-20 07:30:00 to 04-AUG-20 11:00:00 (EST-5)
Location: KEELERSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred on the East Branch of the Perkiomen Creek in the Dublin and Perkasie area.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 09:55:00 to 04-AUG-20 13:00:00 (EST-5)
Location: LAFAYETTE HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Wissahickon Creek in the Fort Washington area.

Coastal Flood in LOWER BUCKS, PENNSYLVANIA
From 04-AUG-20 14:30:00 to 04-AUG-20 16:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Moderate coastal flooding occurred.  There was roadway flooding in some of the tidal areas of lower Bucks County along the Delaware River and its tidal tributaries.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:35:00 to 04-AUG-20 12:30:00 (EST-5)
Location: MODENA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along the West Branch of the Brandywine Creek in the Modena area.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:35:00 to 04-AUG-20 12:30:00 (EST-5)
Location: HARMONY HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred on the East Branch of the Brandywine Creek, downstream from Downingtown.

Tropical Storm in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 09:00:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: ASOS

A sustained wind of 40 mph with gusts to 49 mph was measured at Philadelphia Northeast Airport (KPNE). A number of reports of downed trees and power lines were received in the county, with locally enhanced damage due to a tornado over Northeast Philadelphia.

Tropical Storm in DELAWARE, PENNSYLVANIA
From 04-AUG-20 08:30:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Department of Highways

Few reliable anemometers exist in Delaware County and no sustained tropical storm force winds were measured. However, observations from surrounding areas along with multiple reports of downed trees and power lines suggest tropical storm conditions very likely occurred.

Tropical Storm in LOWER BUCKS, PENNSYLVANIA
From 04-AUG-20 09:00:00 to 04-AUG-20 15:30:00 (EST-5)
Reported by: Public

Numerous reports of downed trees and wires were received in Lower Bucks, including locally enhanced damage near Doylestown due to a tornado. A wind gust of 51 mph was measured near the Bucks/Burlington County border, and reports suggest it is very likely that sustained tropical storm force winds occurred.

Tropical Storm in UPPER BUCKS, PENNSYLVANIA
From 04-AUG-20 09:30:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: ASOS

Observations from surrounding areas as well as reports of downed trees and power lines suggest tropical storm force winds likely occurred.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:40:00 to 04-AUG-20 12:30:00 (EST-5)
Location: STRICKERSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the White Clay Creek in the Strickersville area.

Flash Flood in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 10:50:00 to 04-AUG-20 13:00:00 (EST-5)
Location: TORRESDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along the Pennypack Creek in Philadelphia.

Flash Flood in BERKS, PENNSYLVANIA
From 04-AUG-20 10:25:00 to 04-AUG-20 13:30:00 (EST-5)
Location: BALLY ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along the Little Neshaminy Creek in the Hartsville area.

Flash Flood in BUCKS, PENNSYLVANIA
From 04-AUG-20 12:05:00 to 04-AUG-20 13:30:00 (EST-5)
Location: RICHBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the Neshaminy Creek in the Penns Park and Rushland area.

Flash Flood in LEHIGH, PENNSYLVANIA
From 04-AUG-20 11:20:00 to 04-AUG-20 14:30:00 (EST-5)
Location: EAST PENN JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Little Lehigh Creek in the Allentown area.

Tropical Storm in WESTERN MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 09:00:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Trained Spotter

A trained spotter in Eagleville measured sustained winds up to 42 mph. Several reports of downed trees and power lines were received.

Tropical Storm in EASTERN MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 09:00:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Department of Highways

Several reports of downed trees and wires were received. Sustained tropical storm force winds were measured both immediately east and west of the area indicating they likely occurred here as well.

Tropical Storm in LEHIGH, PENNSYLVANIA
From 04-AUG-20 10:00:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: ASOS

Multiple reports of 40 to 50 mph sustained winds were received including at Lehigh Valley International Airport (KABE). This led to multiple reports of downed trees and power lines.

Tropical Storm in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:00:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Public

A CWOP site in Palmer measured a wind gust of 53 mph. A number of reports of downed trees and power lines were received, indicating sustained tropical storm force winds likely occurred.

Tornado in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 09:51:00 to 04-AUG-20 09:55:00 (EST-5)
Location: TORRESDALE
Tornado F-scale: EF2
Reported by: NWS Storm Survey

After crossing into Philadelphia County, the tornado continued moving northwest through the Philadelphia Mills Mall and then to Knights Road and Medford Road toward Dunks Ferry Road. Three exhaust
systems and 6 RTU systems were blown off the roof in less than 15
seconds at the former Walmart Store currently undergoing
reconstruction, and numerous trees, some close to 100 years old,
were snapped or blown over along Knights Road, Medford Road, and
Dunks Ferry Road. Roofs, siding, and awnings were blown off many
homes in the area. A few cars were also tossed or turned over as
the storm moved through. The estimated wind speed in this area was
100 mph, equivalent to EF1 on the Enhanced Fujita scale. The tornado may have briefly lifted as it continued northwestward and prepared to cross into Bucks County for a second time.

Tornado in BUCKS, PENNSYLVANIA
From 04-AUG-20 09:50:00 to 04-AUG-20 09:51:00 (EST-5)
Location: CORNWELLS HGTS
Tornado F-scale: EF2
Reported by: NWS Storm Survey

A tornado touched down just east of the Philadelphia Mills Mall as it moved in a northwesterly direction. The initial touchdown occurred in Bucks County, very near the Philadelphia County border. Uprooted trees were found near the area of Kings Ave and Paradise Ave. The tornado then quickly approached the county line at Pocquessing Creek.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 06:50:00 to 04-AUG-20 09:00:00 (EST-5)
Location: ABRAMS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple water rescues in Norristown.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 06:45:00 to 04-AUG-20 09:00:00 (EST-5)
Location: BETZWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple water rescues in Upper Merion Township.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 06:40:00 to 04-AUG-20 09:00:00 (EST-5)
Location: RADNOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Widespread roadway flooding in Radnor Township.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 06:35:00 to 04-AUG-20 09:00:00 (EST-5)
Location: OAKMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Darby Creek Road was closed near Lawrence Road in Haverford Township due to flooding.

Flash Flood in CHESTER, PENNSYLVANIA
From 04-AUG-20 10:30:00 to 04-AUG-20 12:30:00 (EST-5)
Location: KAOLIN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along the Red Clay Creek in the Kennett Square area.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:05:00 to 04-AUG-20 13:00:00 (EST-5)
Location: FRUITVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Perkiomen Creek in the East Greenville area.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:20:00 to 04-AUG-20 13:00:00 (EST-5)
Location: FRUITVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the West Branch of the Perkiomen Creek upstream from the Green Lane Reservoir.

Flash Flood in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 06:55:00 to 04-AUG-20 11:55:00 (EST-5)
Location: OVERBROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along Cobbs Creek in Philadelphia.

Flash Flood in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 09:40:00 to 04-AUG-20 13:00:00 (EST-5)
Location: WAYNE JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Wissahickon Creek in Philadelphia.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:30:00 to 04-AUG-20 13:00:00 (EST-5)
Location: SCHWENKSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred on the East Branch of the Perkiomen Creek near Schwenksville.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 11:00:00 to 04-AUG-20 13:00:00 (EST-5)
Location: COLLEGEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Perkiomen Creek in the Graterford area.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 09:00:00 to 04-AUG-20 13:00:00 (EST-5)
Location: EDGEMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along Crum Creek near Newtown Square.

Flash Flood in PHILADELPHIA, PENNSYLVANIA
From 04-AUG-20 09:40:00 to 04-AUG-20 13:00:00 (EST-5)
Location: BRIDESBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Moderate flooding occurred along the Frankford Creek in Philadelphia.

Flash Flood in LEHIGH, PENNSYLVANIA
From 04-AUG-20 10:15:00 to 04-AUG-20 13:00:00 (EST-5)
Location: COOPERSBURG
Flood cause: Heavy Rain
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Newspaper

A car driven by a 44-year-old woman was swept away by flood waters along the 6300 block of North Main Street in Upper Saucon Township near a bridge that passes over Laurel Run.  The victim was pronounced dead later in the day after the waters receded.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 09:50:00 to 04-AUG-20 12:30:00 (EST-5)
Location: MOYLAN ROSE VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along Ridley Creek near Media.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 07:05:00 to 04-AUG-20 09:15:00 (EST-5)
Location: VILLAGE GREEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along Chester Creek in the Chester area.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 10:10:00 to 04-AUG-20 14:00:00 (EST-5)
Location: BETHLEHEM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred along the Monocacy Creek in the Bethlehem area.

Tornado in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 09:44:00 to 04-AUG-20 09:50:00 (EST-5)
Location: HARTRANFT
Tornado F-scale: EF0
Reported by: NWS Storm Survey

An EF0 tornado occurred in Worcester Township in Montgomery
County, Pennsylvania as Tropical Storm Isaias moved northward
along the East Coast of the United States. With southeastern
Pennsylvania being in the northeastward, right front quadrant, the
tornado and parent storm moved in an unusual northwestward
trajectory ahead of the main center of the tropical storm. An area
of circulation tightened in a strong cell within a rainband in
southeastern Montgomery County. As this circulation tightened, a
brief tornado formed near the intersection of Brindle Court and
Township Line Road in Worcester Township, where a few small trees
were downed in a small residential subdivision. From here, the
tornado continued its northwestward trajectory through the
township, downing trees along Potshop Road. The circulation may
have lifted with the path being somewhat discontinuous. A somewhat
denser area of trees were downed as the tornado moved across
Valley Forge Road and northwestward along Heebner Road. Several
tree tops were sheared off in addition to several utility poles
being pushed over along Heebner Road near the intersection of
Shefley Lane. The tornado continued northwest from here,
eventually downing several hardwood trees along Hollow Road. One
tree brought down several utility lines as it fell. From here, the
tornado lifted with only a few other trees being downed a little
ways from Hollow Road in a small wooded area.

Tropical Storm in WESTERN CHESTER, PENNSYLVANIA
From 04-AUG-20 08:30:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Department of Highways

Multiple reports of downed trees and wires were received, and surrounding observations suggest sustained tropical storm force winds likely occurred.

Tropical Storm in EASTERN CHESTER, PENNSYLVANIA
From 04-AUG-20 08:30:00 to 04-AUG-20 15:00:00 (EST-5)
Reported by: Mesonet

A wind gust of 65 mph was measured by a DEOS gauge at White Clay Creek in West Grove, and sustained tropical storm force winds likely occurred. A number of reports of downed trees and wires were received.

Tornado in BUCKS, PENNSYLVANIA
From 04-AUG-20 09:55:00 to 04-AUG-20 10:10:00 (EST-5)
Location: BELMONT HILLS
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

After crossing back into Bucks County, the tornado, which may have lifted for a time, caused additional damage in the Southampton area of Bucks County. Numerous trees were snapped
in this area as well, with many homes and cars damaged due to
falling trees and tree limbs. The Sycamore Drive and Harding Roads
areas were hardest hit. The estimated wind speed in this area was
90 mph, equivalent to an EF1 on the Enhanced Fujita scale.

Current evidence again suggests the tornado lifted one more time
as the parent circulation traveled to the Doylestown area, where
it touched down one final time near the Central Bucks West High
School. Here bleachers on the visitor���s side of the athletic
field were picked up and tossed before the vortex moved on to the
Doylestown Hospital complex where at least six automobiles were
tossed some distance, and where substantial damage occurred to the
Children���s Village Day Care center with no serious injuries
reported. Numerous trees were felled in and around the hospital
center, and several metal lamp posts were bent from the wind. The
estimated wind speed in this area was 115 mph, equivalent to a
low-end EF2 on the Enhanced Fujita scale. The tornado then
continued moving in a northwesterly direction, snapping and
falling trees, as well as causing damage to homes and other
properties, especially along and near Sandy Ridge Road, Jefferson
Avenue, and Lower State Road, before lifting along Ferry Road near
the Peace Valley Reservoir. The estimated wind speed in this area
was 100 mph, equivalent to an EF1 on the Enhanced Fujita scale.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:00:00 to 04-AUG-20 12:00:00 (EST-5)
Location: WORCESTER
Flood cause: Heavy Rain
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Newspaper

A 5-year-old girl with autism was swept away by flood waters running through a tributary of Towamencin Creek after wandering away from her nearby family home.  Rescuers found the victim's body adjacent to the creek in Fischer's Park after a 22-hour search.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 08:35:00 to 04-AUG-20 10:30:00 (EST-5)
Location: BINGEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Friedensville Road was closed near Meadows Road along the Bethlehem and Lower Saucon Township line due to flooding.

Flash Flood in MONTGOMERY, PENNSYLVANIA
From 04-AUG-20 10:00:00 to 04-AUG-20 11:00:00 (EST-5)
Location: GRATERFORD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several water rescues took place in Skippack Township.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:00:00 to 04-AUG-20 12:15:00 (EST-5)
Location: EASTON ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Zucksville Road was under water near Bushkill Drive in Forks Township.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:00:00 to 04-AUG-20 12:15:00 (EST-5)
Location: NAZARETH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Tatamy Road was under water at Friendenstahl Avenue near Nazareth.

Flash Flood in NORTHAMPTON, PENNSYLVANIA
From 04-AUG-20 11:10:00 to 04-AUG-20 12:15:00 (EST-5)
Location: BUTZTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Widespread roadway flooding in Bethlehem Township, including Easton Avenue and Farmersville Road.

Flash Flood in MONROE, PENNSYLVANIA
From 04-AUG-20 11:30:00 to 04-AUG-20 12:15:00 (EST-5)
Location: BOSSARDSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Cherry Valley Road was closed near Goodale Road in Hamilton Township due to flooding.

Flash Flood in DELAWARE, PENNSYLVANIA
From 04-AUG-20 09:35:00 to 04-AUG-20 11:30:00 (EST-5)
Location: FOXCROFT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

South Bryn Mawr Avenue was closed near Mill Road in Radnor Township due to flooding.