Issued: Aug 22, 2014 2:30 AM HST
Based on data through 2:00 am Aug 22 2014 HST
The main Hawaiian islands continues to be influence by a trade wind flow with speeds between 15 and 20 mph.
The satellite loop of the past few hours shows patches of low clouds moving through Kauai and Niihau from the east. A few light showers are noted with these clouds.
The fair skies over Oahu, Molokai, and Maui are being threatened by some approaching low clouds from the northeast. First to be affected will be Maui in the next hour followed by Molokai, and Oahu. Windward Big Island is already being influenced by these clouds resulting in mostly cloudy skies especially in the Hilo and Puna districts. Weather radar is detecting a few light showers with these clouds.
While clouds from Wednesday afternoon continued to hang onto the Kona coast between Kailua Kona town and Milolii, other areas such as the Kau and Kona slopes, have dissipated. Weather radar is picking up a few moderate showers over the waters just west of Kona airport. Otherwise, fair skies ruled the remainder of the main Hawaiian islands.
On the far northwest corner of the satellite imagery of the central north Pacific, an ill defined front is located west of Midway atoll.
Convective activity has increased in the tropics south of the Hawaiian islands during the past seven hours. Isolated deep convection is confined to an area between 10°N and 05°N from 160°W to 165°W. It has a cloud top of 51000 feet. A string of cumulonimbus clouds is noted within 70 mile either side of a line from 12°N 145°W to 10°N 156°W to 14°N 165°W.
The other area of deep convection near 14°N 136°W, belongs to tropical storm Karina.
Water vapor imagery shows an upper level trough north of the main Hawaiian islands from 30°N 149°W to 25°N 152°W to 23°N 156°W to 24°N 161°W. The trough continues to slide southeast at near 10 mph.