Hawaiian Islands Satellite Interpretation Message
Sat, 11 Dec 2010 23:30:00 -0600
Based on data through 0500 UTC December 12 2010.
A large frontal cloud band lingered east of the state this Saturday evening. The east edge of the 300 to 400 miles wide cloud band extended through 30°N 140°W to 14°N 146°W. This band consisted of broken to overcast multi-layered clouds. Isolated thunderstorms were embedded within the band, mostly south of 20 north latitude.
The actual front itself extended roughly through 30°N 142°W to near 24°N 150°W. Much of the cloudiness south of the front was associated with low level convergence and the presence of an upper level trough aloft. Water vapor imagery showed the upper trough axis extending through 30°N 150°W to 20°N 153°W to 14°N 158°W. The upper trough was moving east at just over 25 miles an hour along 30°N and near 15 miles an hour at the south end.
Another front far west-northwest of the state extended from northeast to southwest through 30°N 178°W. However, a large mass of broken to overcast cirrus clouds were spewing eastward ahead of the front. The cirrus was mainly north of a line from 30°N 160°W to 25°N 180°E. But a few small strands and fragments were observed out ahead of the main mass within only 140 miles northwest of Kauai.
Near islands, scattered to broken low clouds were noted mainly north of a line from 22°N 154°W to the north coast of Kauai to 24°N 170°W. A small smattering of scattered to broken low cloud patches were observed over the islands and adjacent waters. The low clouds near the islands were moving south-southwest near 10 miles an hour.
Far south of the state, isolated ITCZ thunderstorms and multi-layered clouds occupied the area between 07°N and 10°N from 145°W to 164°W.
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