Hawaiian Islands Satellite Interpretation Message
Sat, 02 Oct 2010 07:00:00 -0500
Based on data through 1130 UTC October 02 2010.
A weak surface trough continues to move away from the islands toward the west and southwest. Overall, low clouds have decreased since last evening, though broken conditions, with some embedded showers, are still occurring over the isles this early morning. The most concentrated low cloudiness is currently located from the Kaiwi Channel through Maui county and onto the Big Island. Ceilings stretch just north and south of Maui county, north and west of the Big Island, and south of Oahu. Skies are clear to scattered elsewhere in the adjacent coastal waters, except a band of showers, oriented east-northeast to west-southwest, has formed within 30 miles southeast of Cape Kumukahi on the Big Island. Low cloud movement is from the east to east-northeast at 15 to 20 mph across the aloha state.
Another surface trough is nearly stationary east and northeast of the Big Island. The cloudiness associated with this system has become more diffuse over the past several hours. At the moment, the cloud elements that remain are within 130 miles either side of a line from 30°N 144.5°W to 24.5°N 149°W to 23.5°N 154.5°W.
In the upper air above 25 thousand feet, the axis of a trough is along a line from 23°N 155°W to 19°N 156.5°W to 14°N 157°W, which is just west of the Big Island. The feature has drifted west over the past seven hours. A nearly stationary upper ridge is weakening more than 500 miles west of Kauai. The axis of the ridge is roughly along a line from 22°N 168°W to 28°N 173°W to 31°N 175°W.
Unorganized convection is occurring south of Hawaii along the intertropical convergence zone, though activity has decreased since the previous bulletin. Most of the showers and thunderstorms are firing from 09°N to 14°N between 147°W and 168°W, and from 04°N to 12.5°N west of 168°W.
KINEL
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