Hawaiian Islands Satellite Interpretation Message
Wed, 15 Dec 2010 18:30:00 -0600
Based on data through 0000 UTC December 16 2010.
An upper level ridge over the islands is evident on water vapor imagery, with a northeast to southwest oriented upper level trough southeast of the islands. The trough axis is about 440 miles southwest of the Big Island at 2 pm. An upper level low is near 33.7°N 175.7°W, about 1260 miles northwest of Kauai this afternoon. A second upper low that had been on the other side of the dateline has been absorbed into this upper low.
A cold front and its associated layered clouds lies between the upper level low and the Hawaiian islands at 2 pm. The leading edge of the low clouds is about 425 miles to the northwest of Kauai, with some thin high clouds passing over Kauai and Oahu early this afternoon. Isolated embedded thunderstorms are noted in this layered clouds bands, with thunderstorm tops reaching near 50 thousand feet.
Scattered clouds are found over Kauai this afternoon, and just a few over Niihau. Just a few clouds are found over the waters surrounding these islands. On Oahu, clouds are confined to the ridges of the Koolau and Waianae ranges, while on Molokai, the clouds are over the Halawa Valley. A few clouds have formed over the interior of Lanai since daybreak, while clouds have dissipated over Kahoolawe. Clouds have increased over the slopes of the west Maui mountains and Haleakala in the last six hours. Scattered clouds are found over the north Hilo, south Hilo and Puna districts. Clouds cover most of the remaining districts.
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