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Satellite Interpretation Message

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Issued: Oct 31, 2014 2:00 AM HST


Based on data through 2:00 am Oct 31 2014 HST


Windward and mauka sections on the individual isles are seeing the most cloudiness, and rain from time to time, across the aloha state this early morning. This is particularly the case in Kauai, where broken low clouds from a weakening front are making it into leeward areas as well. Low cloud motion is from the east to east-northeast at 25 to 30 mph statewide, though speeds are as high as 35 to 40 mph west clockwise through north of Kauai.

Broken to occasionally overcast showery low clouds, associated with a weak front and stretched out into a band, exist north of the state, with most of the cloudiness currently outside the coastal waters. The cloudiness is oriented east-to-west, and elements have been moving over Kauai and the waters to its immediate west clockwise through north. Plume clouds are generating low ceilings west and west-southwest of the Big Island. Skies are clear to scattered elsewhere over the adjacent coastal waters, discounting any high cloudiness.

Isolated thunderstorms have been occurring north and northeast of Maui county in the frontal cloudiness, beyond the coastal waters and in the offshore waters area. Most of the cells have been firing anywhere from 85 to 170 miles north and northeast of Molokai and Maui as of bulletin time. The convection is being induced by an upper low near 21.5°N 156°W, or about 45 miles north of Maui. The system appears to have moved toward the east or southeast at less than 10 mph over the past several hours. The low is also producing high level cirrus clouds that have recently been sweeping over Maui and the Big Island from the west and northwest.

A weather system is far west and northwest of Kauai, with segments east and west of the date line at 180. The feature has been causing showers and isolated thunderstorms, most of which are evident north of 24°N west of 173.5°W. Midway atoll has lately been escaping any significant problems, with only high ceilings, no precipitation, and winds from the south near 15 mph.

Showers and thunderstorms have been igniting along the intertropical convergence zone far south of Hawaii. Many cells along the boundary have been climbing to over 50 thousand feet. As of this writing, most of the convection is located from 06.5°N to 12°N between 137°W and 160°W, and from 04.5°N to 11°N between 160°W and 176°W.

Hawaii Infrared Satellite image for 1130 UTC


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