Hawaiian Islands Satellite Interpretation Message
Sun, 26 Sep 2010 00:30:00 -0500
Based on data through 0500 UTC September 26 2010.
Satellite loop shows the subtropical ridge has been pushed south over the past 24 hours such that the western limb of the ridge lies just east of the main Hawaiian islands this evening. Flow at low cloud level is sluggish across the islands, mainly toward the west at 10 mph or less. Skies across Kauai and Oahu have scattered low clouds to clear skies. Molokai has broken low clouds across its eastern third while Maui has broken to overcast low clouds across windward Haleakala slopes and across windward west slopes. Cloud cover is a bit more extensive across the Big Island, where broken to overcast low clouds cover all windward slopes as well as Kona slopes from Milolii to Kailua-Kona.
A ragged 120 mile wide band of broken low clouds extends north and west of a line from 35°N 140°W to 31°N 150°W to 24°N 164°W to 26°N 173°W. Marking an old frontal boundary, this cloud band is moving toward the east slowly near 140°W but is nearly stationary elsewhere. Broken stable low clouds lie north of a line from 16°N 140°W to 15°N 145°W to 19°N 154°W and south of a line from 28°N 140°W to 22°N 154°W. Elements of this cloud area break away from time to time and affect the eastern islands.
To the south, broken layered clouds and isolated cumulonimbus, cb, lie within a ragged 120 mile wide band north of a line from 05°N 140°W to 03°N 165°W to 06°N 175°W to 10°N 180°W. A weak tropical disturbance near 11°N 169°W has isolated cb within 90 miles north through west of center. This disturbance is moving toward the west at about 20 mph.
POWELL
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