Hawaiian Islands Satellite Interpretation Message
Sun, 26 Dec 2010 06:30:00 -0600
Based on data through 1200 UTC December 26 2010.
Water vapor imagery shows a broad upper level trough west of the state. A compact upper low is located north of the area near 36°N 170°W. This low is moving to the east southeast at 25 mph. A digging shortwave trough is located west of the area near 27°N 178°E. This trough is moving to the southeast at 25 mph. A surface cold front is associated with this upper level trough, and a band of broken to overcast layered clouds is associated with this front. The frontal band is up to 200 miles wide, and the western edge extends from 30°N 172°W to 26°N 180°, or from 350 miles northeast of Midway atoll to 200 miles southwest of Midway. The band is moving to the east at 15 mph. Isolated cumulonimbus clouds are embedded within the layered clouds. Cloud tops extend up to 35000 ft.
Another shortwave trough is located near 21°N 176°W, or about 500 miles south of Midway atoll. This trough is moving to the east northeast at 15 mph. An area of broken to overcast layered clouds is located generally between 17°N and a line extending from 20°N 180° to 24°N 175°W to 27°N 165°W. These clouds are moving to the northeast at 30 to 50 mph. Isolated cumulonimbus clouds are embedded within these layered clouds, with tops extending up to 40000 ft.
Closer to the state, another shortwave trough is located near 21°N 164°W, or about 300 miles west southwest of Kauai. This trough is moving to the east northeast at 40 mph. An area of broken to overcast layered clouds is located generally north of 20°N between 155°W and 163°W, covering a portion of the main Hawaiian islands. Scattered cumulonimbus clouds are embedded within the layered clouds, and are greatest in coverage along a line from 22°N 160°W to 30°N 152°W. Cloud tops extend up to 44000 ft.
Going from island to island, broken to overcast layered clouds, with embedded cumulonimbus clouds, cover Kauai and Oahu and adjacent coastal waters. Broken low clouds cover Molokai and Lanai, and southern sections of the west Maui mountains. Cumulonimbus clouds are nearly stationary across the leeward slopes of Haleakala, and also across windward coastal sections. These clouds are part of a larger plume cloud that extends southeastward across the Alenuihaha channel, originating near the Big Island. Broken low clouds cover northwest sections of the Big Island, generally from north Kohala district to north Kona district north of Keahole Point. Scattered to broken low clouds are located cover southeast sections.
To the southeast of the state, an upper level low is located near 18°N 153°W, or about 200 miles southeast of the Big Island. This low is moving to the northeast at 25 mph. An area of broken middle and high level clouds are located to the east of this low, generally between 140°W and 151°W south of 19°N. These thicker layered clouds are moving to the northeast at 20 to 30 mph. Additional cirrus clouds are located farther north, extending up to 22°N. These thinner high clouds are moving to the east and northeast at 50 mph.
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