Station Name: Apra Harbor, Guam
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 13 feet

Sensor Depth: -5 feet

Nearest Address:
San Luis Road
Santa Rita, GU 96910
Sånta Rita-Sumai Municipali County

GPS Coordinates: 13.44339, 144.656361

Nearby Water Temperatures

Special Weather Statement issued April 9 at 9:34PM ChST by NWS Tiyan GU

Effective: Thu April 9, 2026, 9:34 PM
Expires: Fri April 10, 2026, 9:45 PM

Tropical Depression 04W continues to organize north of Chuuk. This system will continue to move very slowly northwest for another 24 to 36 hours, before increasing forward speed as it strengthens. The current forecasts have the system strengthening into a typhoon or stronger, as it passes by Guam to the south. At this time, at least Tropical Storm Force conditions are possible for Guam and Typhoon Force conditions aren't out of the question, especially for southern portions of Guam. Current forecast tracks from the Joint Typhoon Warning Center has the typhoon passing south of Guam. Additionally, locally heavy rainfall will develop. Initial indications are for 10 to 15 inches of rainfall to develop for Guam early next week, decreasing into the 4 to 8 inch range further north towards Saipan. Locally higher amounts are probable. WITH THAT SAID...this system doesn't look to affecting the Marianas until sometime in the Sunday afternoon through Monday afternoon time frame, with possible deteriorating conditions thereafter. NOW IS THE TIME to start preparations! Forecast uncertainty in track and timing remains!