Central Pacific Hurricane Center

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Changes for the 2009 Central Pacific Hurricane Season.
Start of categorical genesis forecast in the experimental Graphical Tropical Weather Outlook delayed until July 15.

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Central Pacific (140W to 180)

400 PM HST FRI JUL 3 2009

FOR THE CENTRAL NORTH PACIFIC...BETWEEN 140W AND 180

No tropical cyclones are expected through Sunday afternoon.

Graphical Tropical Weather Outlook
(click for larger image)

Central Pacific Graphical Tropical Weather Outlook and Infrared Satellite image

Go to Eastern Pacific Outlook
This is an experimental product (Product Description Document).
Comments about this new graphic? Please send us an email or complete a short survey.

Satellite Interpretation Message
Area Forecast Discussion

Western Pacific (West of 180)

Monitored by the:
Joint Typhoon Warning Center
Japan Meteorological Agency

Eastern Pacific (East of 140W)

500 PM PDT FRI JUL 3 2009

FOR THE EASTERN NORTH PACIFIC...EAST OF 140 DEGREES WEST LONGITUDE..

SHOWER AND THUNDERSTORM ACTIVITY ASSOCIATED WITH A TROUGH OF LOW PRESSURE LOCATED SEVERAL HUNDRED MILES SOUTH-SOUTHWEST OF ACAPULCO MEXICO HAS INCREASED OVER THE PAST SEVERAL HOURS. UPPER-LEVEL WINDS ARE EXPECTED TO BECOME MORE CONDUCIVE FOR SLOW DEVELOPMENT OF THIS SYSTEM OVER THE NEXT COUPLE OF DAYS AS IT MOVES WEST- NORTHWESTWARD AT 5 TO 10 MPH. THERE IS A LOW CHANCE...LESS THAN 30 PERCENT...OF THIS SYSTEM BECOMING A TROPICAL CYCLONE DURING THE NEXT 48 HOURS.

ELSEWHERE...TROPICAL CYCLONE FORMATION IS NOT EXPECTED DURING THE NEXT 48 HOURS.

Eastern Pacific Graphical Tropical Weather Outlook

Monitored by the NHC

Atlantic

Atlantic Graphical Tropical Weather Outlook

Monitored by the NHC

Hurricane Preparedness

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

Lat/Lon Distance Calculator
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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)

The Central Pacific Hurricane Center (CPHC) issues tropical cyclone warnings, watches, advisories, discussions, and statements for all tropical cyclones in the Central Pacific from 140 Degrees West Longitude to the International Dateline. The season officially begins on June 1 and ends on November 30. However, tropical cyclones can occur at any time. The National Weather Service Forecast Office in Honolulu activates the CPHC when: (1) a tropical cyclone moves into the Central Pacific from the Eastern Pacific, (2) a tropical cyclone forms in the Central Pacific, or (3) a tropical cyclone moves into the Central Pacific from the West.

A Hurricane Preparedness Tip from CPHC:

Hurricane season runs from June through November, when the islands are most susceptible to a hurricane threat. The National Weather Service urges you to know two key weather terms.

A hurricane watch is issued when a hurricane threatens to strike land within 36 hours. Listen to radio or tv for the latest weather information. Store drinking water and non-perishable food. Fill your cars gas tank, and know the best route to evacuate.

A hurricane warning is issued when a hurricane is expected to strike within 24 hours. Be prepared to evacuate immediately, if local officials advise it.