Figure 1 depicts the surface observations at 2:00 am EDT, which shows cold front moving across the Great Lakes and a warm front across the northeastern United States. The cold front became the focus for thunderstorms throughout the afternoon hours of August 13th, which ultimately led to this tornado.
The Worcester, MA F1 tornado of August 13, 1958 impacted Franklin County in Massachusetts. According to NOAA (2019), the F1 tornado caused no fatalities or injuries, but caused $2.5 thousand dollars in property damage. The tornado touched down in Franklin County south of Calvin Coombs Road at 3:30 pm EDT. The tornado travelled for 8 miles and had a maximum width of 233 yards.
NOAA Central Library. (2019). U.S. Daily Weather Maps. Friday July 29, 1958 [PDF]. Retrieved from https://library.noaa.gov/Collections/Digital-Collections/US-Daily-Weather-Maps
NOAA National Centers for Environmental Information (2019). Storm Events Database. Retrieved from: https://www.ncdc.noaa.gov/stormevents/