Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Sun, 02 Jan 2011 18:30:00 -0600

Based on data through 0000 UTC January 03 2011.

Water vapor imagery shows an upper level low near 14°N 165°W, or about 700 miles southwest of the Big Island. The low has been moving to the southwest over the last 12 hours. Middle and high clouds are wrapping counterclockwise around the low in an area bounded by 07°N and 23°N between 140°W and 168°W. Scattered embedded thunderstorms are concentrated along 09°N where the ITCZ is located, and close to the low center in an area bounded by 11°N 1°ND 18B between 160°W and 165°W. Isolated embedded thunderstorms were located elsewhere sough of 18°N. Thunderstorm tops are near 45 thousand feet along the ITCZ, and near 40 thousand feet near the low center.

The cirrus clouds streaming northeastward over the smaller islands are thin enough to allow the detection of the low clouds below. The low clouds have increased since this morning, and are now broken to overcast over all of the smaller island mountains. Clouds are scattered over lower elevations, except broken to overcast for central Oahu. Scattered clouds are located east of Kauai, and broken east of Oahu and Maui county. The clouds over the land are nearly stationary while those over water have sped up to 25 mph out of the east.

The cirrus clouds moving over the Big Island are thicker than those over the smaller islands. However, .a few thin spots in the high clouds allows one to see the usual wedge of broken to overcast low clouds over Hilo and Puna. Broken clouds are also detected over the lower slopes of Kona south of mount Hualalai and over the Kau slopes. Isolated to scattered low clouds are located elsewhere over the Big Island.

Over water southeast of the Big Island, numerous shower-bearing clouds are moving to the southwest. Nexrad shows that most of the showers are staying offshore. Mostly scattered low clouds are seen over the adjacent coastal waters east of the Big Island, while waters to the west are mostly clear, not counting the cirrus.

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CRAIG

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