Hawaiian Islands Satellite Interpretation Message
Sat, 05 Feb 2011 23:30:00 -0600
Based on data through 0500 UTC February 06 2011.
Cloud cover has increased over the main Hawaiian islands ahead of a cold front northwest of Kauai.
Broken to overcast high, cirrus, clouds cover the main Hawaiian islands from Oahu northwestward and obscure lower level features. Kauai has been obscured by cirrus since 0400 pm HST. Radars show scattered showers moving over Kauai from the south. Low level features over Oahu were still visible till 0530 pm and at that time there were only isolated low clouds over the island. As of 0530 pm there were isolated low clouds over west Molokai and Lanai and broken to overcast low clouds over east Molokai, over Maui and over most of the Big Island of Hawaii. Clouds were isolated over the Big Island on the summits of Mauna Kea and Mauna Loa, along the coast from South Point to Hawaiian oceanview estates and near Upolu Point.
Low cloud motions southeast of the Big Island are from the east southeast at 15 to 20 mph veering to south southeast at 20 to 25 mph south of Kauai. There are scattered low clouds immediately southeast of the islands from the Big Island to Molokai. A 100 to 180 mile wide band of showery broken to overcast low clouds is east of a line from 30°N 150.5°W to 330 miles east northeast of Hilo to 10°N 144°W. The part of the band east of the Big Island has moved west at 15 to 20 mph over the past 5 hours.
A frontal cloud band is northwest of a line from 30°N 151°W to about 90 miles northwest of Kauai to 19°N 170°W to 15°N 180°W. Cirrus has been spreading over the southeast edge of the frontal band between 400 miles north northeast of Oahu and 500 miles west southwest of Kauai so it is difficult to find the edge of the front on satellite imagery. The part of the frontal band northeast of 23°N 167°W contains overcast layered clouds with tops to 40000 ft. The part of the band farther southwest is 200 miles wide and contains overcast low clouds.
Another cold front is west of a line from 30°N 164°W to 27°N 165°W where it becomes obscured by higher clouds. This front has moved east at 45 mph over the past 5 hours.
DONALDSON
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