Hawaiian Satellite Interpretation Message

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Issued: Dec 21, 2014 2:00 AM HST

Based on data through 2:00 am Dec 21 2014 HST

Most areas around the aloha state this early morning are clear to partly cloudy. However, small clusters of broken low clouds have been forming now and again over Oahu, the isles of Maui county, and portions of western and northern Big Island. Low cloud motion is from the east-southeast between 20 and 25 mph near the Big Island, and veers to the southeast near 15 mph moving up the chain to Oahu. Low clouds have begun to drift from the north over Kauai in response to a front that is getting closer to the isles.

Small patches of broken low cloudiness are north of the state from Oahu to the Big Island, and south of Maui county. Skies are clear to scattered elsewhere over the adjacent coastal waters as of bulletin time.

The leading edge of broken to overcast showery low clouds associated with a front, as mentioned in the first paragraph, is currently about 285 miles northwest of Kauai. The system has been pushing east near 20 mph along 30°N over the past seven hours. Most of the cloudiness with the boundary is west and northwest of a line from 30°N 156.5°W to 25°N 163°W to 18°N 180°. As of this writing, the back edge of the frontal cloud band is along a line from 30°N 162.5°W to 24.5°N 170°W to 21°N 180°.

Unorganized convection continues to ignite along the intertropical convergence zone far south of Hawaii. Most of the showers and thunderstorms have been firing from 06°N to 08.5°N east of 152°W. The most intense cells, however, climbing to over 50 thousand feet, have been occurring 05°N to 07°N between 162°W and 167°W.

Hawaii Infrared Satellite image for 1130 UTC