Reuters reports that tropical storm Sonia is gaining strength as it nears the Pacific coast of Mexico early on Sunday. The tropical storm is anticipated to bring about a large volume of rain over a significant part of Western Mexico. This will aggravated the already flooded area because of heavy rains taking place over the past couple of months. According to the Reuters report, Sonia is gathering up speed of 205 miles south of Los Cabos, a hot spot for tourists located at the Southern tip of Baja California.

Mexico should prepare for Sonia as it is anticipated to shower rains of up to 10 inches in both Sinaloa and Durango states, according to the Miami-based U.S. National Hurricane Center.

Mexico's National Water Commission also reported that the heavy rains to be brought by Typhoon Sonia can affect up to seven other Western and Northern states.

Back in September, Mexico was affected by one of its worst flooding on record. The country suffered from the merging of two strong storms, Typhoon Manuel and Typhoon Ingrid. The storms caused 150 deaths and damages estimating around $6 billion.

Mexico also suffered from heavy flooding last month because of Hurricane Raymond. The Pacific resort cities of Acapulco and Zihuantanejo were heavily affected, even though no deaths or no major damage was caused.

Tropical storm Sonia is the 19th name system following the current eastern Pacific Hurricane season. The season started in May and is expected to stop at the end of November.

Tropical Storm Sonia started as a tropic depression early Sunday according to the Associated Press. However, it had sustained strong winds and travelling North since then at 7mph.

With Sonia's heavy rains, weather forecasters worry and warn of possible life-threatening, property-damaging flash floods and mudslides. Sonia may also cause 12-foot waves. Without the proper preparations, serious damage will become inevitable.