Oklahoma is preparing for a week of severe thunderstorms, with the National Weather Service warning of heavy rainfall, strong winds, and the potential for flash flooding. The storm system, moving in from the west, is expected to intensify as it crosses the state, bringing rainfall exceeding 2 inches in some areas. This poses a significant risk of localized flooding, especially in low-lying regions. The storms are part of a larger weather pattern affecting the central United States, fueled by a low-pressure system drawing moisture from the Gulf of Mexico.