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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: Oct 24, 2016 2:30 PM HST

Based on data through 2:00 pm Oct 24 2016 HST

Satellite loop shows a broad anticyclonic circulation spanning the central north Pacific. This circulation, actually the subtropical ridge, has an axis extending through 24°N 140°W, 29°N 160°W, 31°N 167°W and 30°N 180°W. South of the ridge axis, low clouds are moving generally from east to west, including across local Hawaiian waters.

A ragged 60 mile wide band of broken low clouds north of a line from 28°N 140°W to 25°N 150°W to 24°N 160°W marks an old frontal boundary northeast and north of the main Hawaiian islands. This cloud feature spreads out and loses definition west of 160°W. Scattered cumulonimbus, CB, persist from 08°N to 12°N between 150°W and 163°W. Additional isolated CB are noted from 08°N to 11°N between 163°W and 180°W.

An area of broken to overcast showery low clouds embedded in the trade flow continues to move across most of the main Hawaiian islands this afternoon. However, low cloud cover has shifted a bit south since this morning. Kauai has scattered to patchy broken low clouds across windward slopes. In contrast, Oahu has broken to overcast low clouds across all but the Ewa plain. The northeast half of Molokai and mauka sections of Lanai have broken to overcast low clouds. Overcast low clouds cover northeast and northwest facing Haleakala slopes on Maui as well as the western mountains there. Overcast low clouds cover all Big Island slopes except around Volcano. The higher Big Island interior and the highest summits are clear. Low clouds are moving across local waters toward the west at 20 to 25 mph.

Hawaii Infrared Satellite image for 0000 UTC

Central Pacific Infrared Satellite image for 0000 UTC


Western Pacific (West of 180)

Monitored by the:
Joint Typhoon Warning Center
Japan Meteorological Agency

Eastern Pacific (East of 140W) xml button

Eastern Pacific Graphical Tropical Weather Outlook

500 PM PDT MON OCT 24 2016

For the eastern North Pacific...east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on Hurricane
Seymour, located several hundred miles south of the southern tip of
the Baja California peninsula.

Tropical cyclone formation is not expected during the next 5 days.

Eastern Pacific Graphical Tropical Weather Outlook

Monitored by the National Hurricane Center (NHC)


Hurricane Preparedness

State of Hawaii Civil Defense
Oahu Civil Defense
Kauai Civil Defense
Maui Civil Defense
Hawaii (Big Island) Civil Defense

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Tropical Cyclones Centers Worldwide
Saffir-Simpson Scale
  • Tropical Storm - winds 39-73 mph (34-63 kt)
  • Category 1 - winds 74-95 mph (64-82 kt)
  • Category 2 - winds 96-110 mph (83-95 kt)
  • Category 3 - winds 111-130 mph (96-113 kt)
  • Category 4 - winds 131-155 mph (114-135 kt)
  • Category 5 - winds 156 mph and up (135+ kt)
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