Hawaiian Islands Satellite Interpretation Message
Wed, 20 Oct 2010 07:30:00 -0500
Based on data through 1200 UTC October 20 2010.
Except for patchy high clouds dropping down from the northwest, skies over the smaller islands were mostly clear. The windward side of Kauai near Lihue and the Hana coast were the only places where there were scattered to broken clouds. Except for broken low clouds east of Maui, waters surrounding the islands were clear as well. Cloud tops were for the most part up to 4000 feet.
The overcast clouds that blanketed the Big Island six hours ago were slowly dissipating while rolling offshore in land breezes. Most of the island Sat under broken but steadily decreasing clouds. Cloud tops were up to 12000 feet. Isolated thunderstorms, cb, persisted over the coastal waters east of Hilo. Cb tops were near 38000 feet.
Scattered towering cumulus, tcu, and cb were located south and east of a line that stretched from 16°N 180°W to 15°N 160°W to 260 miles east of Hilo at 20°N 151°W, then to 30°N 142°W. The biggest cb was far southeast of the Big Island at 11°N 144°W. The top of this cb was near 55000 feet. The rest of the cb had tops below 40000 feet.
To the north, a 60 mile wide line of broken low clouds was stationary along a line from 30°N 146°W to 24°N 160°W to 27°N 169°W. These clouds were the remnants of an old cold front.
Water vapor imagery, which looks at features mainly above 24000 ft, showed a trough aloft in an arc from 30°N 144°W to over the Big Island to 17°N 165°W and 17°N 180°W. The unstable airmass accompanying the trough was setting off the showers and thunderstorms east of the Big Island.
CRAIG
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