Figure 1 depicts the surface observations at 2:00 am EDT, which shows a cold front slicing through southern Ontario and a warm front advecting northward across the northeast United States. A line of thunderstorms (squall line) is also observed ahead of the cold front. The squall line observed in Figure 1 later became responsible for this tornado and an F2 tornado.
![](https://highwaysandhailstones.com/wp-content/uploads/2019/12/Untitled-21.png)
The Skinner State Park, MA F1 tornado of July 5, 1957 impacted Hampshire 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 Hampshire County near Mountain Road at 8:20 am EDT. The tornado travelled for 1 mile and had a maximum width of 33 yards.
Sources
NOAA Central Library. (2019). U.S. Daily Weather Maps. Friday July 5, 1957 [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/