WGCA82 TJSJ 191733 FLSSJU Flood Advisory National Weather Service San Juan PR 133 PM AST Sun Apr 19 2026 PRC121-125-192100- /O.NEW.TJSJ.FA.Y.0138.260419T1733Z-260419T2100Z/ /00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sabana Grande PR-San German PR- 133 PM AST Sun Apr 19 2026 ...FLOOD ADVISORY IN EFFECT UNTIL 5 PM AST THIS AFTERNOON... * WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Sabana Grande and San German. * WHEN...Until 500 PM AST. * IMPACTS...Rises in small streams and normally dry arroyos. Dangerous flows over low-water crossings. Overflowing poor drainage areas. Some low-water crossings may become impassable. * ADDITIONAL DETAILS... - At 131 PM AST, Doppler radar indicated heavy rain due to thunderstorms. This will cause small stream flooding, along the Rio Guanajibo basin. Up to 3 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. && LAT...LON 1817 6701 1816 6701 1816 6700 1815 6699 1814 6697 1815 6696 1815 6695 1814 6693 1806 6696 1807 6704 1808 6710 1811 6710 1811 6709 1811 6708 1812 6708 1812 6709 1817 6706 $$ ICP