Issued: Aug 27, 2014 8:30 AM HST
Water vapor imagery shows an upper level low near 25°N 169°W, or almost 600 miles east-southeast of Midway atoll. This low is moving to the southwest at less than 10 mph. Isolated towering cumulus clouds are located within 150 miles north of the low, generally from 25°N to 27°N between 166°W and 172°W. These clouds are moving to the west at 15 to 20 mph. Cloud tops extend up to 28000 ft. Farther to the northwest, scattered cumulonimbus clouds are located generally north of 24°N and west of 174°W. These clouds are also moving to the west at 15 to 20 mph. Cloud tops in this area extend up to 42000 ft.
Additional cumulonimbus clouds are located farther south of this area, generally south of a line from 16°N 180° to 12°N 176°W. Cloud tops extend up to 42000 ft. Patches of cirrus and cirrostratus clouds are also located through this area, generally south of 18°N and west of 173°W. These high clouds are moving to the northeast at 20 to 30 mph.
Across the main Hawaiian islands, broken low and mid level clouds cover Niihau and the interior and eastern half of Kauai. Broken low clouds cover the slopes of the Koolau range on Oahu. Broken to overcast low clouds cover northeast sections of Molokai east of a line from kalaupapa to pukoo, as well as interior sections of Lanai. Broken low clouds cover interior and northeast slopes of the west Maui mountains, as well as northeast slopes of Haleakala between 3000 ft and 7000 ft. Across the windward coastal waters, a band of showery low clouds extends 100 miles offshore to the northeast from Kauai to Maui.
On the Big Island, broken low clouds cover the windward slopes of the Kohala range, and lower slopes Hamakua district below 4000 ft. Broken low and mid level clouds cover much of north Hilo district below 8000 ft, and the western half of south Hilo district. Patches of broken low clouds cover Puna district. A band of low clouds extends along the eastern coast of Puna district and the immediate coast of north Hilo district. These clouds extend 30 miles offshore to the northeast and up to 20 miles offshore to the southeast. Broken mid-level clouds cover western sections of Kau district below 8000 ft from wood valley westward. A band of low clouds is located along the immediate coastline of south Kona and Kau districts from Milolii southward. An area of low clouds extends over 400 miles offshore to the west-southwest from the Big Island in a band over 150 miles wide.