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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: Dec 07, 2016 2:30 PM HST


Based on data through 2:00 pm Dec 07 2016 HST


The trade wind flow is largely disrupted across much of the region due to a pair of surface troughs that are being influenced by an upper level trough moving across the western portion of the area.

The upper level trough axis is centered along 30°N 166°W, 21°N 170°W, and 12°N 180° and is traveling to the east around 20 mph. This feature is triggering scattered thunderstorms with tops to 41000 ft within 90 miles a surface trough from 30°N 162°W to 25°N 166°W. The surface trough extends southwestward to 20°N 177°W where it is marked by broken low clouds. The upper level trough is triggering another batch of scattered thunderstorms southeast of Johnston atoll in the area from 17°N to 11°N between 166°W and 170°W. High clouds are streaming northeastward out of this area and are passing over the main Hawaiian islands.

A weak easterly low level flow is in place over the islands, though it is difficult to track individual low cloud motions due to the high clouds passing overhead. Broken low clouds are observed over interior terrain of the smaller islands, since the weak trade wind flow has been overpowered by afternoon sea breezes. Moisture from a weak surface trough stretching over the Big Island is producing more extensive cloud cover over that island, where a few towering cumulus cells rise to around 17000 ft.

The above mentioned surface trough runs from 30°N 148°W, 26°N 150°W, to the Big Island at 20°N 155°W, and 10°N 161°W. Broken low clouds are largely confined to within 75 miles of the trough, while isolated thunderstorms are found near 30°N 148°W.

Hawaii Infrared Satellite image for 0000 UTC

Hawaii Visible Satellite image for 0000 UTC

Central Pacific Infrared Satellite image for 0000 UTC


EFFECTIVE WEDNESDAY...DECEMBER 14 2016...THE NWS WILL DISCONTINUE

THIS PRODUCT. FOR QUESTIONS...PLEASE CONTACT TOM EVANS AT

808-973-5273. THE OFFICIAL CHANGE NOTICE CAN BE FOUND AT...ALL

LOWER CASE...HTTP://WWW.NWS.NOAA.GOV/OM/NOTIF.HTM

Western Pacific (West of 180)

Monitored by the:
Joint Typhoon Warning Center
Japan Meteorological Agency

Eastern Pacific (East of 140W) xml button

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

Monitored by the National Hurricane Center (NHC)

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