Tuesday, September 23, 2014 596-SURF , 596-WAVE , 922-BONG , 638-RUSH , 572-SURF(MAUI) , 241-SURF (KAUAI) , 324-RUSH (BIG ISLAND)
   
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Issued: Sep 23, 2014 2:30 AM HST


Based on data through 2:00 am Sep 23 2014 HST


To the west, thunderstorms developed along a trough within 75 miles of the line from 20°N 170°W to 20°N 167°W. Layered debris clouds from this convection partly to mostly obscured lower features within the area bounded by the curve from 21°N 170°W to 20°N 166°W to 17°N 168°W to 19°N 173°W.

To the northwest through northeast, stratocumulus and stratus fragments from a dissipated front extended across Hawaiian waters within 100 miles of the line from 24°N 165°W to 24°N 147°W.

To the southeast through southwest, moderate thunderstorm activity continued in the ITCZ from 12°N to 03°N across most of the area, and as far north as 16°N near 150°W. Layered debris clouds from this and earlier convection partly to mostly obscured lower features from 19°N to 01°N.

Otherwise, cloud cover across Hawaiian waters consisted mainly of individual small cumuli, though a few clumps up to 180 miles across also were present. These clouds generally rose to heights of 6000 to 9000 feet, and moved toward the west southwest at around 15 miles an hour.

Across the main Hawaiian islands, cloud cover consisted mostly of marine cumuli and stratocumuli moving ashore along slopes facing east to southeast, especially over the Big Island and Oahu. Layered debris clouds from afternoon cumulus buildups on Monday largely had dissipated. These clouds varied in height from 7000 to 12000 feet. Radar data from near the islands showed scattered showers over and northeast of the Kaiwi Channel, offshore along the coast of Puna district on the Big Island, and offshore in the lee plume to the west southwest of the Big Island, but isolated showers at most elsewhere.

Hawaii Infrared Satellite image for 1130 UTC

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RYSHKO

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