Hurricane forecasts/advisories contain more detailed information on the forecast track of tropical storms than contained in the scheduled high seas forecasts and are transmitted 4 times daily at approximately 03Z, 09Z, 15Z and 21Z for each active tropical system.
The eastern part of the Pacific Ocean, west of the North and South American coasts and east of 120°W, from 3°24'S to the Equator, thence to 180°, to 50°N thence northwestward to 53°N 172°E, northeastward following the marine frontier between the United States and Russian Federation waters to 67°N.