11/2/2025 11:45:00 AM until 11/7/2025 6:00:00 PM

If outdoors, consider seeking shelter inside a building.

ESFGUM This Hydrologic Outlook is for Guam, Rota, Tinian and Saipan. A tropical disturbance developing in central Micronesia, is expected to move toward the Marianas in the next few days and bring heavy downpours to the area around midweek. After the storm's passage to the west, feeder bands along the leeside of the system may bring an extended period of rainfall for the rest of the week. Moderate uncertainty remains regarding potential rainfall impacts, but early estimates indicate this system to bring locally heavy rainfall of 5 to 8 inches across the Marianas by the weekend. This feature will be monitored closely over the next several days by various agencies, so expected rainfall totals may change. Even so, flash flooding remains a possibility Wednesday through Saturday. As showers are likely to persist, consistent rainfall is likely to saturate the soils enough to increase mudslide risk by the weekend, especially at Guam. Residents on these islands need to closely monitor this developing situation as flood watches, advisories and flash flood warnings could be issued later. If living near streams and rivers, prepare to move items away from stream and river banks. Make sure storm drains nearby are not clogged, especially If living at low-lying areas.