Hawaiian Islands Satellite Interpretation Message
Fri, 12 Nov 2010 23:30:00 -0600
Based on data through 0500 UTC November 13 2010.
Dense high clouds continue to blanket the main Hawaiian islands this early Friday evening. Water vapor imagery shows part of an upper level trough lying over Kauai and Oahu. The trough axis continues eastward for a thousand miles to 22°N 143°W, and to the southwest for 1600 miles through 16°N 170°W to 08°N 180°E. To right or east of this trough, you will find mid and high clouds and southwest to west wind flow. Between 180°E and 166°W is an area of multilayered clouds, about 260 miles wide. The area contains a thunderstorm or two. Cirrus clouds, about 350 miles wide, dense in some spots, continued towards the northward including the main Hawaiian islands. The cirrus dissipates east of the Big Island. The trough over part of the state, has eased eastward during the past 12 hours. Otherwise the rest of the trough has been stationary.
Of what we can see, there is an area of showers passing to the south of the Big Island. A bit of its northern fringe though may catch the Kau district. Satellite imagery also show a band of showers between 200 and 350 miles northeast of Maui. The band starts off far east of the Big Island at between 20°N and 17°N at 130°W longitude. The band curves toward the northwest at 19°N 145°W and to the north at 25°N 154°W. The overall movement is slowly toward the west and south.
Based on the widely scattered showers over the Maui windward waters, they are moving toward the west northwest at 20 to 25 mph.
Elsewhere, a cold front is noted between 730 and 1000 miles northwest of Kauai, moving southeast at 20 mph. As part of the front, there is a band of layered clouds with a few embedded thunderstorms, about 130 miles either side of a line from 40°N 162°W to 34°N 165°W to 29°N 173°W. The tops of the thunderstorms extend to 42000 feet. A narrower cloud band, 180 miles wide, and consisting cumulus clouds, continues southwestward from 29°N 173°W to 25°N 180°E to 22°N 170°E.
LAU
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