SATELLITE DISCUSSION

Based on data through 0000 UTC February 13 2016.

Overall synoptic pattern for the area has not changed since this mornings discussion. Water vapor imagery continues to show upper level ridging centered over the main Hawaiian islands, with upper level troughs on either side of the area. A 300 mile wide layered cloud frontal band intersects the northwestern most corner of the area from 30°N 167°W to 21°N 180°W. Overall the front is moving to the east around 20 mph.

Low level cloud motions and low level satellite derived winds place the center of a surface high just northeast of the area at 31°N 141°W with a ridge extending to 17°N 180°W. Low level clouds throughout most of the area follow the circulation around the high. North of the ridge, and east of the front mentioned above scattered cumulus /cu/ and stratocumulus /sc/ are generally moving to the northeast between 15 and 30 mph, with fastest cloud motions closer to the frontal band. South of the ridge and south of 20°N, the scattered cu and sc are moving to the west between 20 and 30 mph. North of 20°N and south of the ridge, the scattered to broken sc and cu are moving to the southwest and west between 15 to 25 mph. Clouds moving around the high generally have tops less than 10 thousand feet.

Over the main Hawaiian islands, broken to overcast low level clouds are banked up along the mountain slopes to 8 thousand feet in the Kohala, Kona, and Kau districts on the Big Island. The Hilo and Puna districts have few to scattered clouds. The northeastern mountain slopes on Molokai, Lanai, and Maui have broken low clouds. The remaining areas on these islands have few clouds. Scattered to broken low clouds cover Kauai, while few low clouds cover Oahu. Scattered sc and cu northeast of the islands are moving moving to the west and northwest near 20 mph.

Activity associated with the intertropical convergence zone /itcz/ remains south of 10°N with only little cirrus /ci/ blow off between 155°W and 180°W, south of 15°N.

Hawaii Visible Satellite image for 0000 UTC

EATON

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