A new storm southeast of Guam, the sixth of the Northwest Pacific’s tropical cyclone season, developed into a tropical depression Tuesday southeast of Guam but is not expected to pose a threat to the island, Guam weather officials said Tuesday.

“We don’t expect too much except gusty winds and heavy rain, local flooding in poor drainage areas, that’s about it,” said meteorologist Michael Ziobro at the National Weather Service’s Guam forecast office.

The Joint Typhoon Warning Center predicts the as-yet-unnamed storm to track 204 miles south of Andersen Air Force Base and 176 miles south of Naval Station at 8 a.m. Wednesday Guam time.

Ziobro said the island would experience maximum winds of up to 35 mph and 4 to 6 inches of rain before the storm begins tracking northwest away from the Marianas Islands.

If it continues on its JTWC forecast track, the system next could approach Okinawa by the weekend. However, said Capt. Colin Reece of Kadena Air Base’s 18th Weather Flight, it was “too soon to say” if the storm will affect that island.

At 7 p.m. Guam time Tuesday, Tropical Depression 6W was 253 miles south-southeast of Guam, moving west-northwest at 10½ mph with sustained winds of 34½ mph and gusts of up to 46 mph at its center.