Hawaiian Islands Satellite Interpretation Message
Fri, 21 Jan 2011 23:30:00 -0600
Based on data through 0500 UTC January 22 2011.
Broken to overcast low clouds surround the islands from Molokai southeastward. The greatest concentration of clouds is over the lee side of the Big Island and waters to the west. The clouds decrease in coverage as one goes northwestward up the island chain, such that Oahu has broken to overcast clouds over windward sections and windward waters while lee areas and leeward waters have almost clear skies. Kauai has the fewest clouds with scattered to broken clouds over land, and over waters to the west and southeast. Gravity waves are eroding the clouds from north to south over the last six hours. Cloud tops around the islands are near 4500 feet, with a possible second cloud deck with tops near 8000 feet.
A second band of broken clouds in an arc shape is located about 200 miles northeast of the islands. The northwest to southeast band is moving to the west at 20 mph, as are the clouds around the islands. Beyond the second cloud band, skies are again mostly clear.
There are two frontal cloud bands far to the northwest, both of which look rather weak. The broken to overcast clouds with the two fronts are moving to the southeast at 10 to 15 mph. The leading edge of the closest cloud band is 600 miles northwest of Kauai, and the second front is about 1200 miles away from Kauai. There are no thunderstorms with that portion of the fronts south of 30°N, while there are scattered thunderstorms north of 30°N.
CRAIG
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