33NM NNE Shemya AK

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

Synopsis: A 987 mb low 200 nm S of Atka and a 981 mb low 50 nm E of Unalaska merge with each other 110 nm S of Nikolski Wed afternoon creating a 993 mb low. This low moves to 150 nm S of Unalaska at 997 mb Thu morning. A 997 mb North Pacific low develops along a front Wed afternoon and moves to 50 nm E of Sitkinak Island at 999 mb Thu morning.