Forecasters at the Central Pacific Hurricane Center in Honolulu said Saturday that Tropical Storm Pewa is crossing the International Date Line, the boundary between Central and Western Pacific waters.
In its 5 p.m. Saturday advisory, the Center said Pewa was about 1,065 miles east-southeast of Wake Island, moving west-northwest near 13 mph. This motion is expected to continue for the next 48 hours, according to forecasters.
Maximum sustained winds were near 65 mph, with higher gusts. Forecasters said gradual strengthening is forecast during the next 48 hours and that Pewa could become a typhoon in the next day or two.
Pewa is the first named storm of the season to form in the Central Pacific, which is defined as the area north of the equator between 140-degrees west longitude and the International Date Line.
Tropical cyclones that attain tropical-storm strength in the Central Pacific are given Hawaiian names. The last system to do that was Omeka in 2010.
Even though it crossing the Date Line and leaving Central Pacific waters, Pewa will keep its name. The Japan Meteorological Agency's Regional Specialized Meteorological Center (RSMC) in Tokyo will now issue advisories on Pewa.