A tropical wave, which had formed over Panama in early November and had produced rainfall in the region, merged into the waning remnants of Tropical Depression Twenty-Seven near Honduras on November 18. The system then regenerated into a tropical storm later that day and was designated Tropical Storm Gamma. The system's strengthening was slow, owing to the presence of high wind shear. It reached peak winds of 50 mph (80 km/h) before the shear exposed the center and its weakening trend began. Despite flares of convection, Gamma weakened into a tropical depression on November 20 and further into a remnant low early on November 21. The low quickly dissipated on November 22 near the Honduran-Nicaraguan border.