All Weather News

1 Year Ago: Tornado Outbreak in Pennsylvania

On October 2, 2018, the largest October tornado outbreak in Pennsylvania state history occurred.

On that day, there were 16 tornadoes reported across the Keystone State. This surpassed the number of tornadoes reported in October collectively from the previous 68 years. Previously, there were only 13 known reports of tornadoes during the month throughout the state.


In Pennsylvania, there are 5 National Weather Service offices that monitor weather conditions. Cumulatively, those 5 offices issued 32 tornado warnings on October 2, 2018.  Before 2018, Pennsylvania had only issued 5 tornado warnings by all NWS offices during the month of October.



With 32 tornado warnings issued on October 2, 2018, it makes the 3rd highest number of warnings issued in any month for the state. Only 2 months had more tornado warnings issued, which were June 1998 with 64 warnings, and May 1998 with 33 warnings issued.

Image credit: Iowa Environmental Mesonet


Of the 16 tornadoes that occurred that day, 4 were rated EF2, 7 were rated EF1, and 5 were rated EF0.

The most significant tornado of the day was an EF2 that went through Brookville, PA in Jefferson County. Winds maxed out at 110 mph, and was on the ground for 4 miles. The tornado caused significant damage to a cemetery, numerous buildings, and thousands of trees in forested areas.



About the author
Kerrin is a Certified Broadcast Meteorologist as designated by the American Meteorological Society. Kerrin received a B.S. in Meteorology from Lyndon State College (now known as Northern Vermont University) in 2008.  Having grown up in the beautiful state of Vermont, she has experienced all seasons of weather (including mud season). Soon after graduation, she began her career as a  meteorologist... Load More at Fox44/ABC22 News in Burlington, Vermont, where she led the team as 'chief meteorologist' for several years. During her time in Vermont, she forecasted through Hurricane Irene, Sandy, the ice storm of December 2014, and countless nor'easters.   In 2015, Kerrin traded snow for sun, moving to south Florida to continue her career at CBS12 News, where she got first hand experience with tropical weather forecasting, including hurricane Matthew in 2016. Kerrin joined WeatherNation in January 2017. Kerrin has an interest in all earth sciences, and cares about promoting science literacy, careers in STEM, weather/weather safety, and climate through education. She also enjoys animal wellness, acting, and being outdoors. Follow Kerrin on Twitter or Facebook to follow along on social media.

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