A tropical depression formed yesterday west-northwest of Saipan and brought rains on the island in the afternoon.
According to the U.S. National Weather Service in Guam, as of 1pm, the center of Tropical Depression 19W was 530 miles west-northwest of Saipan, 550 miles northwest of Guam, and 420 miles south-southwest of Iwo To, Japan.
NWS said Tropical Depression 19W is moving toward north-northwest at 16 miles per hour, packing maximum sustained winds at 30 mph.
NWS said the general motion is expected to continue over the next 24 hours.
The forecast is that Tropical Depression 19W is moving farther away from the CNMI today, Tuesday.
No watches or warnings are in effect.
NWS, however, issued a high surf advisory for the CNM and Guam effective from 6pm Monday to 4pm Thursday.
Hazardous surf of 7 to 9 feet is expected along west facing shores Monday night and that surf will build to 9 to 11 feet today, Tuesday, and continue through Wednesday. The surf is expected to gradually subside on Thursday.
NWS said monsoon winds across the Philippine Sea are producing a large westerly swell.
As precautionary measures, NWS urged the public to avoid venturing near exposed reefs and beaches especially those along west facing reefs as rip currents are life-threatening.