Monday, September 20, 2010

Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Mon, 20 Sep 2010 13:00:00 -0500

Based on data through 1730 UTC September 20 2010.

Low cloud ceilings this morning are prevalent over windward and mauka sections of the individual isles, with some of the broken low cloudiness making into leeward areas of the smaller isles and west Maui. Leeward portions of east Maui and the Big Island are clear to partly cloudy, as are the western thirds of Oahu and Kauai. Low cloud motion is from the east-northeast between 15 and 20 mph.

Cloudiness from an old frontal boundary is causing occasional low ceilings north clockwise through south of the Big Island. Broken low clouds are also producing ceilings immediately north and southwest of Maui county, and south of Oahu. Skies are otherwise clear to scattered in the adjacent coastal waters.

Most of the broken to overcast low clouds associated with the old front, as alluded to above, are within 75 miles either side of a line from 27°N 134.5°W to 26°N 140°W to 22°N 148.5°W to 16.5°N 155.5°W. Some of the cloudiness around the Big Island and Maui county had been more directly associated with the front yesterday and last night.

In the upper air above 25 thousand feet, the axis of a northeast to southwest oriented trough is along a line from 30°N 147°W to 24°N 154°W to just over Oahu to 19°N 157°W. The system appears to be moving toward the east and southeast at 10 to 15 mph.

Unorganized showers and thunderstorms are firing along the intertropical convergence zone far south of Hawaii. Most of the convection is occurring from 05°N to 11°N.

Hawaii Infrared Satellite image for 1730 UTC


KINEL


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