NWS: Special Weather Statement – Tropical Cyclone Formation Alert Issued for System East of Marianas


Guam – The National Weather Service in Tiyan has issued a Special Weather Statement for the Marianas after the Joint Typhoon Warning Center [JTWC] issued a Tropical Cyclone Formation Alert for a system developing east of the Marianas.

As of Thursday morning, the JTWC fixed the center of circulation at 16.3 degrees north latitude, about 335 nautical miles north-east of Andersen Air Force Base. It was moving west-southwest [NOT northwest] at 3 knots on a track that could take it north of Saipan.

No watches or warnings have been issued for any of the Mariana islands and the system poses no threat to Guam or Rota at this time, although showers are in the forecast through the weekend.

Special Weather Statement – National Weather Service Tiyan Guam – 11:04am ChST Thursday Oct. 3

READ the Special Weather Statement on the NWS website HERE

…Developing Tropical Disturbance East of the Marianas…

A tropical disturbance continues to develop east of the Marianas.

The disturbance is generally drifting west-southwestward towards the Northern Marianas. The disturbance is now the subject of a Tropical Cyclone Formation Alert from the Joint Typhoon Warning Center indicating a high potential to become a Tropical Depression within the next 24 hours.

Numerous showers and isolated thunderstorms are expected over the next several days as the disturbance passes over the Northern Marianas. Winds gusting to 35 miles per hour with rainfall amounts of  2 to 4 inches or more are possible over Tinian, Saipan and the Northern Marianas.

This system shows a potential to become a Tropical Depression within the next 24 hours. stay informed on this developing weather situation.

Keep abreast of the latest forecasts and listen for any further statements and possible warnings from the National Weather Service or your local emergency management office.