Hawaiian Islands Satellite Interpretation Message
Fri, 10 Sep 2010 07:30:00 -0500
Based on data through 1200 UTC September 10 2010.
A broad upper trough centered just west of the dateline near 25°N and an upper level jet to the south and southeast of the trough is lifting high level moisture north and northeast across much of the central Pacific region. Infrared and water vapor imagery shows these layered high clouds stretching from 160°W to the dateline south of 18°N and lifting northeast across the Hawaiian island chain from Maui west to Kauai and continuing to Nihoa. Upper level ridging dominates the area east of 150°W.
Scattered thunderstorms continue to develop near the dateline trough between 24°N and 27°N west of 175°W. Highest cloud tops are near 40000 feet and the thunderstorms are moving west northwest at 15 mph. Additional isolated to scattered thunderstorms are near a low pressure located about 650 miles south southeast of the Big Island. These storms are moving west at 10 to 15 mph with tops near 50000 feet. More scattered thunderstorms are embedded within the high layered cloudiness along 10°N to 12°N, west of 165°W. Elsewhere, low topped stratocumulus are present in broken to overcast decks between the windward side of the Hawaiian islands to over 1000 miles to the northeast.
Over the main Hawaiian islands, broken low clouds are found over the windward mountain slopes, windward coast and adjacent coastal waters of all islands, as well as along the Kona coast and slopes of the Big Island from near Keahole Point southward to near South Point. The passing high clouds are obscuring low cloud details elsewhere over the islands. Low cloud movement is towards the west southwest at 15 to 20 mph, while high clouds are racing northeast at roughly 40 mph.
BRENCHLEY
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