Hawaiian Islands Satellite Interpretation Message
Sat, 09 Oct 2010 07:40:00 -0500
Based on data through 1200 UTC October 09 2010.
The latest satellite imagery shows scattered low clouds over the waters surrounding the main Hawaiian islands. This included the waters off the Kona coast. Weather radar is picking mainly light showers with these clouds. But there are more pronounced ones as well, located over the waters south Oahu and Kauai and west of Niihau. These clouds and showers are moving from east to west at around 15 mph.
Over land, locally broken cloud coverage is found over the windward and mountain sections of all islands, while the leeward areas, including the Kona side of the Big Island, is clear to scattered.
More showers are present upwind of the Big Island and Maui.
Elsewhere, satellite imagery shows a frontal band 550 miles north of Kauai. The band continues to move southeast and south at around 17 mph.
The high level cirrus clouds between Kauai and the dateline has thinned and retreated westward.
A low level vortex about 1200 miles west southwest of Kauai, near 18°N 178°W, is harder to located now that the deeper convection has dissipated.
The large shower area continues to move west while passing south of the main Hawaiian islands. The back edge of this area is now nearly directly south of South Point Big Island.
A couple of hundred miles to the south of this shower area is the intertropical convergence zone /itcz/, with the coordinates of 9.5°N 140°W, 9.5°N 160°W, 11.5°N 170°W and 08°N 177°W. The ITCZ remains active with scattered moderate to strong thunderstorms within 120 miles either side of the zone but concentrated between 157°W and 143°W.
LAU
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