Damage Survey PNS from KPHI

[akr...@iastate.edu]

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681 
NOUS41 KPHI 120019
PNSPHI
DEZ001-NJZ015>019-PAZ070-071-101>106-121230-

Public Information Statement
National Weather Service Mount Holly NJ
819 PM EDT Sat Jul 11 2026

...NWS Damage Survey for the July 11, 2026 Thunderstorm Wind 
Event...

.Southern Montgomery County, West Philadelphia, and South 
Philadelphia Thunderstorm Wind Event...

Peak Wind Estimated:    60-70 mph
Path Length /statute/:  12 miles 
Path Width /maximum/:   4-5 miles
Fatalities:             0
Injuries:               0

Start Date:             July 11, 2026
Start Time:             2:44 PM EDT
Start Location:         Lower Marion Township, Montgomery County, PA
Start Lat/Lon:          40.01/-75.28

End Date:               July 11, 2026
End Time:               3:15 PM EDT
End Location:           South Philadelphia, Philadelphia County, PA
End Lat/Lon:            39.90/-75.15

Summary: A series of at least 4 distinct microbursts with 
estimated wind gusts of 60 to 70 mph impacted a narrow corridor 
about 4 to 5 miles wide beginning in far southern Montgomery 
County and continuing southeastward into West Philadelphia and 
then South Philadelphia. Dozens of reports of widespread wind 
damage to trees and buildings have been received and reviewed. 
Based on radar data and dozens of photos and videos received from 
across the area both during the storm and the aftermath, it has 
been determined that all of the wind damage occurred from severe 
microbursts causing straight line wind damage.

The first microburst occurred in Lower Merion Township in southern
Montgomery County beginning around 2:44 PM EDT, where widespread 
tree damage has been reported. Power outages and disruptions to
SEPTA rail service also occurred in this area. A second 
microburst occurred starting around 2:52 PM EDT in the northern 
neighborhoods of West Philadelphia, and continuing southeastward.
In this area, there were numerous reports of uprooted trees, 
including many having fallen onto vehicles and blocking countless 
city streets. At least 2 reports of structural damage occurred in 
West Philadelphia, including a partial building collapse and roof 
blown off of a building resulting in evacuations of the occupants.

A third microburst occurred over the western neighborhoods of 
South Philadelphia beginning around 3:01 PM EDT. South 
Philadelphia experienced similar wind damage as West Philadelphia,
with numerous reports of uprooted trees and other tree damage 
blocking city streets. There was at least 1 report of a roof blown
off a vacant building, which subsequently caused a partial brick 
wall to collapse and crush a vehicle on the street below. A forth 
microburst occurred over mainly industrial areas of South 
Philadelphia beginning around 3:12 PM EDT, impacting areas such as
the Stadium District and Navy Yard. In this area, a few reports 
of uprooted trees have been received.

The National Weather Service would like to thank our Emergency
Management partners and Skywarn Spotters for providing reports to
assist with this damage survey.

&&

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
Storm Data.

$$

Staarmann

[akr...@iastate.edu]

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Text Permalink: IEM Website (202607120049-KPHI-NOUS41-PNSPHI)

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647 
NOUS41 KPHI 120049
PNSPHI
DEZ001-NJZ015>019-PAZ070-071-101>106-121300-

Public Information Statement
National Weather Service Mount Holly NJ
849 PM EDT Sat Jul 11 2026

...NWS Damage Survey for the July 11, 2026 Thunderstorm Wind 
Event - Update #1...

.Update...Updated summary to include some damage that extended
into far eastern Delaware County.

.Southern Montgomery County, far eastern Delaware County, West 
Philadelphia, and South Philadelphia Thunderstorm Wind Event...

Peak Wind Estimated:    60-70 mph
Path Length /statute/:  12 miles 
Path Width /maximum/:   4-5 miles
Fatalities:             0
Injuries:               0

Start Date:             July 11, 2026
Start Time:             2:44 PM EDT
Start Location:         Lower Marion Township, Montgomery County,
PA
Start Lat/Lon:          40.01/-75.28

End Date:               July 11, 2026
End Time:               3:15 PM EDT
End Location:           South Philadelphia, Philadelphia County,
PA
End Lat/Lon:            39.90/-75.15

Summary: A series of at least 4 distinct microbursts with 
estimated wind gusts of 60 to 70 mph impacted a narrow corridor 
about 4 to 5 miles wide beginning in far southern Montgomery 
County and continuing southeastward into portions of far eastern
Delaware County, West Philadelphia, and then South Philadelphia. 
Dozens of reports of widespread wind damage to trees and buildings
have been received and reviewed. Based on radar data and dozens 
of photos and videos received from across the area both during the
storm and the aftermath, it has been determined that all of the 
wind damage occurred from severe microbursts causing straight line
wind damage.

The first microburst occurred in Lower Merion Township in
southern Montgomery County beginning around 2:44 PM EDT, where 
widespread tree damage has been reported. Power outages and 
disruptions to SEPTA rail service also occurred in this area.
A second microburst occurred starting around 2:52 PM EDT in the 
northern neighborhoods of West Philadelphia, and continuing 
southeastward. This microburst also extended into portions of far
eastern Delaware County, including Havertown, Upper Darby
Township, and Yeadon. In this area, there were numerous reports 
of uprooted trees, including many having fallen onto vehicles and 
blocking countless city streets. At least 2 reports of structural 
damage occurred in West Philadelphia, including a partial building
collapse and roof blown off of a building resulting in 
evacuations of the occupants.

A third microburst occurred over the western neighborhoods of 
South Philadelphia beginning around 3:01 PM EDT. South 
Philadelphia experienced similar wind damage as West 
Philadelphia, with numerous reports of uprooted trees and other 
tree damage blocking city streets. There was at least 1 report of 
a roof blown off a vacant building, which subsequently caused a 
partial brick wall to collapse and crush a vehicle on the street 
below. A forth microburst occurred over mainly industrial areas of
South Philadelphia beginning around 3:12 PM EDT, impacting areas 
such as the Stadium District and Navy Yard. In this area, a few 
reports of uprooted trees have been received.

The National Weather Service would like to thank our Emergency
Management partners and Skywarn Spotters for providing reports to
assist with this damage survey.

&&

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
Storm Data.

$$

Staarmann

[akr...@iastate.edu]

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546 
NOUS41 KPHI 191942
PNSPHI
DEZ001>004-MDZ012-015-019-020-NJZ016-021-023-024-200745-

Public Information Statement
National Weather Service Mount Holly NJ
342 PM EDT Sun Jul 19 2026

...NWS Damage Survey for the July 18, 2026 Thunderstorm Wind 
Event in Sussex County DE...

A severe line of thunderstorms impacted portions of Sussex County
DE on Saturday, July 18, 2026 with peak estimated gusts up to 75 
mph. Scattered areas of wind damage occurred across the county, 
but the most significant damage occurred in the southwest portion 
of the county in the vicinity of Bethel, Laurel, and Seaford. A 
summary of this damage is outlined below, however this does not
include all areas of damage sustained across the entire county.

.Southwest Sussex County DE Thunderstorm Wind Event...

Peak Wind Estimated:    75 mph
Path Length /statute/:  6 miles
Path Width /maximum/:   600 yards
Fatalities:             0
Injuries:               0

Start Date:             July 18, 2026
Start Time:             6:21 PM EDT
Start Location:         3 miles WSW Bethel, Sussex County, DE
Start Lat/Lon:          38.56 / -75.67

End Date:               July 18, 2026
End Time:               6:28 PM EDT
End Location:           3 miles NNW Laurel, Sussex County, DE
End Lat/Lon:            38.60 / -75.58

A severe line of thunderstorms crossed into southwestern Sussex
County near the Nanticoke River and Maryland border approximately
3 miles WSW of Bethel, impacting the Phillips Landing area with 
scattered tree damage. The storms continued in an ENE direction, 
passing across Broad Creek and surrounding rural areas, 
eventually reaching the Cypress Pointe neighborhood and adjacent 
homes and properties along Woodland Ferry Road. Several properties
in this area sustained damage to trees, power lines, sheds, and 
fences consistent with wind gusts near 60 mph, but no structural 
damage was observed or reported in this immediate area.

The line of storms continued ENE from Woodland Ferry Road,
reaching Oneals Road where a barn sustained loss of metal roof
panels. This is where the peak estimated wind gusts of 75 mph was
estimated to have occurred with these storms. There was tree 
damage observed in the vicinity of the barn as well. The storms
continued ENE toward the area of Mount Zion Road between Seaford 
Road and US Route 13, where the last notable area of tree damage
was observed. No significant wind damage from this portion of the
line of storms was observed to have continued beyond this point.

Notable wind damage to trees reportedly occurred within the town
of Seaford, but this was associated with a different segment of 
the severe line of thunderstorms which occurred between 
approximately 6:30 PM EDT and 6:35 PM EDT and was consistent with
gusts near 60 mph.

There were no known injuries or fatalities from these storms.

The National Weather Service would like to thank local broadcast
media and Sussex County Emergency Management for their assistance
in providing information for this damage survey.

&&

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
Storm Data.

$$

AKL/Franklin/Staarmann