Pamela arrived in Mazatlan on Wednesday morning, about 40 miles (65 km) north of the resort. Civil defense officials stated that wind and rain caused minor flooding, but not enough to cause major damage. As it moved inland, it gradually lost power and became a tropical storm.

According to the U.S. National Hurricane Center, Pamela's winds were at 30 mph (45 kph). It was dissipating about 100 miles (180 km) west of Laredo in Texas, which lies on the border with Mexico.

Forecasters predicted that further weakening would occur during the night. However, they warned that the storm could drop 3 to 6 inches (7-15 cm) of rain across parts of central Texas and southeastern Oklahoma. In isolated areas, it could drop up to 8 inches (20 cm) of rain. The hurricane center warned that this could lead to significant flash flooding and urban flooding.