* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Caguas, Cayey, Cidra, San Lorenzo... * WHEN...Until 400 AM AST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Dangerous flows over low-water crossings. * ADDITIONAL DETAILS... - At 1258 AM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 1.5 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding.