Hawaiian Islands Satellite Interpretation Message
Sun, 05 Sep 2010 00:30:00 -0500
Based on data through 0500 UTC September 05 2010.
Cloud cover across the islands is heaviest across the Big Island and adjacent windward waters this evening. Overcast low clouds cover all windward Big Island slopes while broken to overcast low clouds cover Kona slopes from Milolii to Kailua-Kona. Kau also has broken low clouds. In contrast, Kauai has scattered to patchy broken low clouds only across mauka areas. Oahu has broken low clouds across the Koolau summits and windward slopes. The eastern tip of Molokai has broken low clouds while Lanai appears to have scattered low clouds. Broken to overcast low clouds cover the windward Haleakala slopes and windward west slopes on Maui. Satellite loop shows low clouds moving across Hawaiian waters generally toward the west southwest at about 20 mph.
Water vapor loop, showing features above about 24000 feet, shows an upper low near 31°N 164°W, about 675 miles northwest of the main Hawaiian islands. An area of broken high clouds from 34°N 163°W to 27°N 157°W to 29°N 164°W lies along the eastern flank of this upper low. This feature appears to be drifting toward the south slowly. Another upper low is noted near 34°N 145°W, moving toward the southwest at 15 mph.
A 250 to 350 mile wide band of overcast layered clouds lies north and west of a line from 50°N 153°W to 44°N 160°W to 37°N 170°W. These clouds join with more overcast layered clouds west of 175°W between 36°N and 51°N. The band of low clouds is associated with a frontal boundary while the layered clouds west of 175°W marks the eastern flank of a low pressure system still west of the dateline.
The intertropical convergence zone is marked by scattered cumulonimbus, cb, and overcast layered clouds east of 150°W between 08°N and 12°N. More cb lie west of 176°W between 08°N and 13°N. A ragged 120 mile wide band of broken low clouds links the two cb areas along an arc from 07°N 150°W to 07°N 160°W to 09°N 175°W.
POWELL
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