Hawaiian Islands Satellite Interpretation Message
Fri, 10 Dec 2010 23:30:00 -0600
Based on data through 0500 UTC December 11 2010.
A sharp upper level trough is evident on water vapor imagery this evening. The upper low associated with the trough is more than 2270 miles north of Honolulu at 7 pm, near 53.7°N 150.6°W. The trough axis extends from the low to 23.4°N 161.3°W, about 135 miles northwest of Kauai.
Deep layered clouds are found out ahead of the upper level trough axis over the main Hawaiian islands. The thickest clouds are from Maui to the Big Island, with a slight break over Molokai and the eastern half of Oahu. Additional layered clouds are noted over the western half of Oahu back to Kauai. Most of the clouds over the Big Island are reaching near 40 thousand feet. Southeast of the Big Island, the layered clouds reach near 50 thousand feet. Over the remaining islands, layered clouds reach between 30 and 40 thousand feet. The layered clouds over the main Hawaiian islands extend to the south to 10°N, and extend north northeast of the islands beyond 40°N.
The back edge of the layered clouds near the Hawaiian islands is along a line from 27.7°N 158.3°W to 16.5°N 161.9°W, which is over the island of Kauai at 7 pm. Over the last several hours, the back edge of layered clouds has been moving to the east around 30 mph.
Over the last six hours, thunderstorm activity within the layered clouds moved to the area south of the Big Island, where isolated thunderstorms continue.
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