Issued: May 22, 2013 8:30 AM HST
Based on data through 8:00 am May 22 2013 HST
An upper low centered near 32°N 155°W is moving slowly north as thunderstorms fire along the inner northeast semicircle of circulation. Overcast layered clouds cover the broader eastern quadrant of the low and extends as far south as 27°N near 152°W. Embedded thunderstorms within the layered band are reaching as high as 40 thousand feet. A band of overcast low clouds extends southwest of the low's east quad, centered over 29°N 151°W and stopping just short of the Big Island with an average width of 200 miles. These low clouds are moving slowing north.
Between 140°W and 150°W from 10°N to 30°N, low stable stratocumulus are moving into the central Pacific from the east Pacific. Initially overcast near 140°W, the low clouds break up as they move closer to 150°W, moving about 15 mph toward the west. Low clouds across the rest of the central Pacific are moving west at 15 to 20 mph providing partly cloudy skies with patches of overcast clouds.
Over Hawaii, clear skies and sunshine prevail this morning with skies expected to cloud up later this morning and afternoon. Some isolated showers are lingering south of Oahu and west of Lanai. While a patch of stable low clouds sits just south of Maui and Lanai.
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