Tropical Storm Bertha

Storm North Atlantic Ocean, August 30–September 4, 1984 On August 30, 1984, 

Tropical Storm Bertha formed over the southeastern North Atlantic Ocean. Like most tropical cyclones that originate south of 10 degrees North, the tropical depression that would eventually be upgraded and named Tropical Storm Bertha experienced some initial difficulty in organizing its complex circulation system. Meteorologists who have studied this phenomenon attribute it to the diminishing intensity of the Coriolis effect, which diminishes the closer an object is to the equator. Bertha, which steadily moved to the northwest and away from the equator, did not intensify until it reached 15 degrees North, at which point it was upgraded to a tropical storm. At its peak, Bertha generated a central barometric pressure of 29.73 inches (1,007 mb) and sustained winds of 40 MPH (64 km/h), making it a very weak system. Wind shear and cooler seasurface temperatures again downgraded Tropical Storm Bertha to tropical depression intensity, and by September 4, 1984, Bertha had dissipated over the mid-North Atlantic Ocean.