Hawaiian Islands Satellite Interpretation Message
Tue, 02 Nov 2010 13:30:00 -0500
Based on data through 1800 UTC November 02 2010.
A somewhat diffuse frontal cloud band was lingering 225 miles north of Kauai this morning. The southern edge of this 180 miles wide band stretched southwest through near 30°N 150°W to 25°N 160°W to 24°N 170°W. The cloud band extended west beyond 170°W in an even more diffuse state, spreading out to over 400 miles in width as it reached the dateline.
The cloud band was fairly benign, consisting of mostly broken to overcast low and mid level clouds. However, the cloud band was more active and intense north of 30°N latitude. Isolated thunderstorms were noted along the cloud band between 32°N 148°W and 38°N 143°W. That part of the band just north of Kauai was moving southeast at just over 5 miles an hour.
Near the islands, randomly distributed patches of scattered low clouds were common in most areas. But a large cluster of broken low clouds was noted just west and southwest of South Point on the Big Island. And a cluster of broken to scattered low clouds was continually forming, dissipating and reforming in the area just west through west-northwest of Kauai. The low clouds near the islands were mostly drifting slowly south or southwestward.
Water vapor imagery showed the upper level trough associated with the front extending from 35°N 152°W to near 25°N 156°W. The trough was moving east near 25 miles an hour. An upper level low near 20°N 175°W was moving west at just under 10 miles an hour. Another upper low near 22°N 140°W was drifting slowly northeastward.
The upper low west of the state was generating a large amount of cirrus clouds generally between 10°N and 23°N from 160°W to 175°W. Also widely scattered thunderstorms were forming between 09°N and 14°N from 162°W and the dateline. A small amount of cirrus clouds from this area was spreading east and just reaching the islands. A northeast to southwest aligned swath of scattered to broken cirrus Sat just northeast of Maui. This swath was being generated by the upper trough to our north.
At 8 am, skies were clear over the vast majority of the islands. Only a tiny bit of low clouds were seen here and there. And the cirrus clouds flowing high above the state were fairly thin and not obscuring the Sun much at all.
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