GUAM - The National Weather Service announced that a tropical disturbance is developing over the Marianas. It's centered around 170 miles east-southeast of Saipan. The disturbance is expected to develop slowly over the next couple of days as it drifts north or northeast.

According to the National Weather Service island residents can expect scattered showers and isolated thunderstorms over the next two to three days. Along with the heavy rain expect gusty winds at 10 – 25 miles per hour.

Several warning and advisories have been issued for Guam. A high surf advisory is in effect until 6 o'clock Sunday morning. Resident are asked to avoid venturing near exposed reefs and beaches, especially those facing along west facing reefs as rip currents are life threatening.

A small craft advisory is in effect until 6:00 PM Friday. Inexperienced mariners should avoid boating in these conditions.

A flash flood warning is in effect for Guam until 6:00pm Friday. According to the NWS locations in the warning include but are not limited to Yigo, Tamuning, Finegayan Station, Tiyan, Dededo, Marbo Annex and Andersen Air Force Base. Excessive runoff from heavy rainfall will cause flooding of small creeks and streams.

The NWS warns that because there is a potential for a tropical depression to develop over the next day or two, to stay informed on this developing weather situation.