04augAll DayEast Norriton (Montgomery County, PA)


Start Time:  10:44 am EDT

End Time:  10:50 am EDT

Rating:  EF0

Estimated Peak Winds:  80 mph

Path length:  2.8 miles

Width:  200 yards

Fatalities:  0

Injuries:  0

County:  Montgomery

State:  Pennsylvania

Start Lat/Lon:  40.16 / -75.33

End Lat/Lon:  40.20 /  -75.36

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. Special thanks is extended to the Montgomery County EM Office along with Skywarn Spotter Lou Ruh for their help in this survey.


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