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This page was last loaded at 10:40 pm HST Jan 31, 2015 (840 GMT Feb 01, 2015)

Central Pacific (140W to 180) xml button

Tropical Outlook Sea Surface Temperatures CPAC Satellite EPAC Satellite Widgets Satellite Message Forecast Discussion

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Issued: Jan 31, 2015 7:30 PM HST

Based on data through 7:00 pm Jan 31 2015 HST

To the northwest through northeast, a nearly stationary cloud band associated with two fronts extended across Hawaiian waters between the curve from 30°N 153°W to 27°N 156°W to 24°N 160°W to 24°N 174°W to 25°N 167°W to 27°N 168°W to 28°N 174°W to 30°N 173°W, and the curve from 30°N 144°W to 25°N 149°W to 22°N 159°W to 20°N 165°W to 19°N 171°W to 20°N 180. This feature consisted mostly of middle to low cloud layers between 175°W and 161°W, but deep cloud layers elsewhere. Thinner high cloud layers also partly obscured lower features east of the band all the way to 140°W to the north of 25°N. Densely packed cold-air cumuli locally merged into areas of nearly solid low overcast north of the band.

To the south, light thunderstorm activity continued in the ITCZ from 10°N to 04°N. Layered middle to high debris clouds from this and earlier convection mostly to partly obscured lower features within 350 miles of the curve from 0°N 176°W to 12°N 166°W to 04°N 140°W.

Otherwise, cloud cover consisted mainly of marine stratocumuli and cumuli organized into loose clumps and bands up to about 380 miles long and 130 miles wide. Individual small cumuli also were present throughout. These clouds were greatest in areal coverage between the frontal cloud band and 30°N, and also east of about 150°W. They generally rose to heights of 8000 to 12000 feet. These clouds typically moved toward the west to northwest at around 10 miles an hour.

Across the main Hawaiian islands, cloud cover consisted mostly of the frontal cloud band over Kauai county, but a mix of marine stratocumuli and layered debris clouds from afternoon cumulus buildups inland over the rest of the state. Areas with the least cloud cover were limited mainly to southwest Oahu, south Molokai, the central isthmus on Maui, and the summit of Mauna Loa on the Big Island. These clouds generally rose to heights of 6000 to 9000 feet. Radar data from near the islands showed scattered moderate to heavy showers along the north coasts of Maui and Molokai, and scattered showers well offshore to the northeast and southwest of Maui county, but isolated showers at most elsewhere.

Hawaii Infrared Satellite image for 0500 UTC

Central Pacific Infrared Satellite image for 0500 UTC


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The Eastern Pacific Hurricane season runs from May 15 to November 30.

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