Hawaiian Islands Satellite Interpretation Message
Sat, 29 Jan 2011 18:30:00 -0600
Based on data through 0000 UTC January 30 2011.
A cloud band associated with a cold front is located northwest of the state. The leading edge of the main cloud band extends from 30°N 164°W to 23°N 173°W to 20°N 180°, or from 800 miles east northeast of Midway atoll to 450 miles southeast of Midway to 600 miles south southwest of Midway. The band is up to 300 miles wide, and is composed of overcast low and middle level layered clouds that extend up to 15000 ft. The band is moving to the east and southeast at 20 mph. An additional cloud band is located ahead of the main band, generally north of 25°N within 200 miles east of the main frontal band. These clouds are composed of broken to overcast cumulus and towering cumulus elements. The two bands are beginning to merge near 30°N. Patchy high clouds are also aligned above the lower cloud bands, and are located mainly north of 28°N. The high clouds are moving to the east northeast at 80 to 100 mph.
Water vapor imagery shows an upper level low near 14°N 140°W. This low is moving to the northeast at 20 mph. Isolated cumulonimbus clouds are located to the northwest of the low, generally within 50 miles of a line from 14°N 144°W to 18°N 140°W. These convective clouds are nearly stationary. Cloud tops extend up to 38000 ft. Broken to overcast middle and high level clouds are located between 14°N and 19°N. The southern edge of this cloud area is moving to the south and southeast at around 10 mph, and the northern edge has been moving to the north and northwest at around 10 mph.
Patches of broken to overcast low clouds are located across much of the central Pacific, with the greatest cloud coverage located southeast of a line from 30°N 155°W to 15°N 180°. These clouds are composed primarily of stable stratocumulus and closed cell cumulus elements to the northeast of the main Hawaiian islands. Near and to the south and west of the main Hawaiian islands, clouds are composed of a mix of stable closed cell cumulus and showery open cell cumulus elements. Cloud motion is generally to the east at 15 to 20 mph. North of the state, cloud motion is more toward the northwest.
Across the main Hawaiian islands, broken to overcast low clouds cover the interior and northwest sections of Kauai. These clouds extend 30 miles offshore to the northwest. Broken low clouds cover the windward slopes of the Koolau range and the northern half of the Waianae range on Oahu. Broken low clouds cover the far northwest and far northeast sections of Molokai. Scattered to broken low clouds are located over northeast sections of Lanai. Broken low clouds cover windward sections of the west Maui mountains. Broken to overcast clouds cover the lower slopes of Haleakala below 7000 ft. These clouds also extend across the central valley. These clouds are also part of an area that extends 120 miles offshore to the northeast of Maui.
On the Big Island, broken to overcast clouds cover windward sections of the Kohala range, and lower slopes of Hamakua district below 7000 ft. Broken clouds also cover north and south Hilo and Puna districts below 7000 ft. These clouds are greatest in coverage across upslope sections of the districts. Overcast clouds cover Kau district below 9000 ft, and north and south Kona districts below 7000 ft. These clouds also cover southern sections of south Kohala district from Waikoloa Village southward. Low clouds extend 80 miles offshore to the northeast of the windward coast, and 70 miles offshore to the southwest of the leeward coast from between keahole and South Point.
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