a tropical cyclone, and lasted from September 6 to October 3. The storm developed in a large region of convection across the Gulf of Mexico and western Atlantic, and for the first nine days of its duration tracked generally east- or northeastward while gradually strengthening to peak winds of 110 mph (175 km/h). On September 14 Ginger slowed and turned to a general westward track, passing near Bermuda on September 23; there, the hurricane produced gusty winds and high waves, but no damage. While over the western Atlantic Ocean, Ginger became the last target of Project Stormfury, which sought to weaken hurricanes by depositing silver iodide into tropical cyclone rainbands. The plane dropped silver iodide into the center of Ginger, although there was no effect due to Ginger's large eye and diffuse nature; Ginger was the last seeding done by the project. Ginger ultimately struck North Carolina on September 30 as a minimal hurricane, lashing the coastline with gusty winds that caused power outages across the region. Heavy rainfall flooded towns and left heavy crop damage, with 3 million bushels of corn and 1 million bushels of soybean lost. Damage in the state was estimated at $10 million (1971 USD, $ USD). Further north, moderate rainfall and winds spread through the Mid-Atlantic states, although no significant damage was reported outside of North Carolina. Tropical Storm Heidi Tropical Storm Heidi was the last of the four tropical systems to develop from the extended surface trough of low pressure, forming on September 11 northeast of the Bahamas and intensifying into a tropical storm the next day. After initially moving to the northwest, Heidi curved northeastward and attained its peak intensity of 65 mph (100 km/h) on September 14 off the coast of Virginia. The storm failed to become a well-organized system, and it gradually weakened while accelerating north-northeastward. On September 15, shortly after Heidi moved ashore in Maine, it was absorbed by a broad extratropical cyclone over the northern Appalachians. Heidi did not directly cause any fatalities or severe damage. However, the larger extratropical storm drew in moisture from Heidi, producing rainfall from North Carolina through northern New England, including a peak of in southeastern Pennsylvania. The heavy rains triggered extensive flooding that caused over a dozen fatalities and left thousands of residents homeless in Pennsylvania and New Jersey. In Chester, Pennsylvania a stone dam collapsed, forcing hundreds of families to evacuate