Hawaiian Islands Satellite Interpretation Message
Thu, 25 Nov 2010 06:30:00 -0600
Based on data through 1200 UTC November 25 2010.
The water vapor loops shows an upper level ridge residing over the middle of the central Pacific region with water vapor imagery showing the ridge axis from southwest to northeast along a line from 20°N 166°W to 33°N 157°W. East of the ridge, an upper trough is moving southwest at 25 mph towards the main Hawaiian islands.
Infrared imagery shows a weakening frontal band consisting of a 200 to 300 mile wide swath of layered clouds which covers the area west of a line from 35°N 168°W to 28°N 172°W to 21°N 177°W, crossing an area between lisianski and Midway atolls. Most of the active embedded cumulonimbus clouds along the front six hours ago have dissipated. Cloud tops are now extend only to around 34 kft in height. The front is moving east at around 10 mph.
Around the main Hawaiian islands, strong trade winds are being driven by a surface high centered at 35°N 142°W. The upper trough is enhancing showers, with radar tracking broken cumulus clouds and scattered to numerous showers affecting mostly windward and mauka sides of the islands. Some of these showers are moderate in strength, with tops to 15 kft in height. Infrared satellite and radar both show the exception being some plume cloud development off the Big Island leeward coast. Scattered to broken low clouds are crossing the windward coastal waters of the Big Island and Maui from east to west at nearly 25 mph.
Far south of the state in the ITCZ, scattered thunderstorms cover an area from 06°N to 10°N and across the central Pacific basin east to west. Cloud tops reach to 44 kft in vertical height.
FOSTER
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