Tuesday, September 02, 2014 596-SURF , 596-WAVE , 922-BONG , 638-RUSH , 572-SURF(MAUI) , 241-SURF (KAUAI) , 324-RUSH (BIG ISLAND)
   
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Issued: Sep 01, 2014 2:30 PM HST


Based on data through 2:00 pm Sep 01 2014 HST


A patchy band of clouds is associated with a surface trough southwest of the Big Island. These clouds are located within 200 miles southeast of a line from 20°N 159°W to 12°N 172°W. The cloud band is composed primarily of showery cumulus elements, with scattered towering cumulus elements. Cloud tops extend up to 16000 ft. South of 16°N, isolated cumulonimbus clouds are also embedded within the band. Cloud tops associated with these features extend up to 40000 ft. The overall band is moving to the west at 15 mph. Additional towering cumulus and isolated cumulonimbus clouds are located farther west as well, in the area south of a line from 10°N 172°W to 14°N 180°. Cloud tops in this area extend up to 46000 ft.

Just north of the state, another area of showery low clouds is located in a band up to 150 miles wide. This cloud band is located in the area from 22°N to 27°N between 155°W and 159°W, and is moving to the northwest at 10 to 15 mph. Cloud tops extend up to 12000 ft. Another batch of showery low clouds is located southeast from this area, generally from 18°N to 22°N between 149°W and 152°W. These clouds are moving to the west at 10 to 15 mph.

Across the main Hawaiian islands, broken to overcast low clouds cover the interior of Niihau, the interior and western sections of Kauai, and the interior and northern sections of Oahu. Broken low clouds cover the interior of Molokai and Lanai, and interior and southern sections of the west Maui mountains. Broken to overcast low clouds cover the slopes of Haleakala, with most coastal sections free of low clouds except near Ulupalakua and wailea.

On the Big Island, broken to overcast clouds cover much of the interior sections. These clouds are greatest across Kau district, and upslope sections of north and south Hilo districts. Scattered to broken low clouds are located over the eastern half of Puna district east of Mountain View, and leeward coastal sections from Upolu Point to Kawaihae to Keahole Point. The summits of Mauna Kea and Mauna Loa are also mostly clear. Clouds extend up to 10000 ft along northern slopes and up to 12000 ft along the remaining slopes. These clouds extend up to 80 miles offshore to the west-southwest from Milolii in a band up to 20 miles wide.

Water vapor imagery shows an upper level trough from 30°N 168°W to 21°N 180°, or from 600 miles east-northeast of Midway atoll to 500 miles south-southwest of Midway. This trough is moving to the east at 15 to 20 mph. Scattered towering cumulus clouds and isolated cumulonimbus clouds are located near and to the north of the trough. The tallest cloud tops are located generally from 20°N to 23°N between 171°W and 175°W, where they extend up to 42000 ft. Additional cirrus and cirrocumulus clouds are located through this area, generally within 150 to 250 miles southeast of the trough. These high clouds are moving to the northeast at 40 to 50 mph.

Hawaii Visible Satellite image for 0000 UTC

Central Pacific Infrared Satellite image for 0000 UTC


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