...Microburst /straight line wind damage/ confirmed in South Annville township in Lebanon County...
Location...South Annville township date...July 27 2014 estimated time...725 PM EDT estimated maximum wind speed...80 mph maximum path width...50 yards path length...2 miles (sporadic damage path)
* the information in this statement is preliminary and subject to change pending final review of the event and publication in NWS storm data.
...Summary... the National Weather Service in State College has confirmed a microburst /straight line wind damage/ in South Annville township in Lebanon County Pennsylvania on July 27 2014.
The Straight line wind damage was most concentrated just north of U.S. 322 from Mt. Pleasant Road to sr 934 (s White Oak street). Damage consisted of a portion of a roof off a farm house...minor structural damage to several farm/outbuildings and numerous trees snapped off or knocked down.
This information can also be found on our website at weather.Gov/ctp.
For reference... a microburst is a convective downdraft with an affected outflow area of less than 2 1/2 miles wide and peak winds lasting less than 5 minutes. Microbursts may induce dangerous horizontal/vertical wind shears...which can adversely affect aircraft performance and cause property damage. Straight-line winds are generally any wind that is not associated with rotation...used mainly to differentiate them from tornadic winds.