Monday, January 10, 2011

Hawaiian Islands Satellite Interpretation Message

Hawaiian Islands Satellite Interpretation Message
Mon, 10 Jan 2011 12:30:00 -0600

Based on data through 1800 UTC January 10 2011.

The next in a series of fronts was right on our front doorsteps this morning. The front was about 50 miles northwest of Kauai just before 8 am. But associated mid and high level cloudiness spewing out ahead of the main frontal band and low level convergence clouds preceding the front were already over nearly all the Hawaiian islands.

The front extended south all the way from the southwest Aleutian islands through 30°N 156°W to 50 miles northwest of Kauai to near 18°N 168°W. The associated cloud band was over 275 miles wide. Near the islands the front was moving east-southeast near 30 miles an hour.

Skies were cloudy from Kauai to Maui. The Big Island was seeing the fewest clouds overhead, mainly a few wisps of cirrus. But a dense shield of cirrus was about to move over the Big Island from the west. And several large clusters of broken to overcast low clouds were bearing down on the Big Island from the south.

An upper low was near 32°N 162°W. An upper trough extended from the low to near 23°N 166°W. Both were moving southeast at 30 to 35 miles an hour and ushering the front toward the islands. A surface low near 30°N 164°W was also moving southeast at just over 30 miles an hour. Strong northwest winds south and southwest of the surface low will act as a reinforcing surge to push the front down into the island chain.

Central Pacific Infrared Satellite image for 1800 UTC


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