Source: Nicholas Kostin / GettyMaryland residents are being urged to stay weather-aware Tuesday as strong to severe thunderstorms could move through the region during the afternoon and evening. Forecasters say any breaks in the clouds could allow temperatures and instability to build, increasing the potential for severe weather. The entire region is under a Slight Risk for severe thunderstorms, which is a Level 2 out of 5. The greatest risk for severe weather is expected between 2 p.m. and 8 p.m. Heavy rainfall could lead to flash flooding, particularly in low-lying areas, locations with poor drainage and places that repeatedly experience flooding during intense storms.