SOUTHERN HEMISPHERE CYCLONE PAGE
SOUTHERN HEMISPHERE CYCLONE PAGE
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OVERVIEW OF THE SOUTHERN INDIAN OCEAN BASIN & SOUTHWEST PACIFIC/AUSTRALIAN AREA/SOUTHEAST PACIFIC BASIN:
South Indian Ocean. Over the waters west of 100ºE to the east African coast, an average of 11 tropical cyclones (tropical storms and hurricanes) form each season, and about 4 reach hurricane intensity. The season is from December through March, although it is possible for a storm to form in any month. Tropical Cyclones in this region usually form south of 10ºS. The latitude of recurvature usually migrates from about 20ºS in January to around 15ºS in April. After crossing 30ºS, these storms sometimes become intense extratropical lows.
Southwest Pacific and Australian Area (including the Southeast Pacific). These tropical waters spawn an annual average of 15 tropical cyclones (tropical storms and hurricanes), 4 of reach hurricane intensity. The season extends from about December through April, although storms can form in any month. Activity is widespread in January and February, and is in these months that tropical cyclones are most likely to effect Fiji,Samoa, and the other eastern islands.
Tropical cyclones usually form in the waters from 105ºE to 160ºW, between 5ºS and 20ºS. Storms affecting northern and western Australia often develop in the Timor or Arafura Sea, while those that affect the east coast form in the Coral Sea. These storms are often small, but can develop winds in excess of 130 knots(150 mph/242 km/h). New Zealand is sometimes reached by decaying Coral Sea storms; occasionally, it is reached by an intense hurricane. In general, tropical cyclones in this region move southwestward and then recurve southeastward.(Taken from American Practical Navigator Vol 1 1977)
Maps Courtsey of Hurricanes,Typhoons & Tropical Cyclones
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Tropical Weather Text Products
SITES OSU FSU
MAIN STATEMENTS:
Tropical Weather Advisory-West/South Pacific [JTWC]
Primary
Backup
Archive
Issued daily @ 06Z.
Tropical Weather Advisory-Indian Ocean [JTWC]
Primary
Backup
Archive
Issued daily @ 06Z.
Tropical Weather Discussion [NWS Honolulu]
Primary
Backup
N/A
Tropical Disturbance Summary [RMSC Nadi,Fiji]
Primary
N/A
N/A
Tropical Weather Outlook [RMSC Darwin,Aust.]
Primary
N/A
N/A
Tropical Weather Outlook [RMSC Brisbane,Aust.]
Primary
N/A
N/A
Tropical Weather Outlook-NW Australia [RMSC Perth,Aust.]
Primary
N/A
N/A
Tropical Weather Outlook-Central Indian Ocean [RMSC Perth,Aust.]
Primary
N/A
N/A
MARINE FORECASTS:
High Seas Forecast-South Pacific [NWS Honolulu]
Primary
N/A
N/A
High Seas Forecast-SE Pacific [RSMC Fiji]
Primary
N/A
N/A
High Seas Forecast-Western Australian Waters [RSMC Perth]
Primary
N/A
N/A
High Seas Forecast-Northern Australian/Indonesia Waters [RSMC Darwin]
Primary
N/A
N/A
High Seas Forecast-NE Australian Waters [RSMC Brisbane]
Primary
N/A
N/A
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TROPICAL SURFACE CHARTS
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Computer Models
Indian Ocean (FNMOC) (NOGAPS)
Indian Ocean (FNMOC) (GFS)
Australia-New Zealand (FNMOC) (NOGAPS)
Australia-New Zealand (FNMOC) (GFS)
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Past Tropical Cyclones:
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Southwest Pacific and Australian Area (including the Southeast Pacific). These tropical waters spawn an annual average of 15 tropical cyclones (tropical storms and hurricanes), 4 of reach hurricane intensity. The season extends from about December through April, although storms can form in any month. Activity is widespread in January and February, and is in these months that tropical cyclones are most likely to effect Fiji,Samoa, and the other eastern islands.
Tropical cyclones usually form in the waters from 105ºE to 160ºW, between 5ºS and 20ºS. Storms affecting northern and western Australia often develop in the Timor or Arafura Sea, while those that affect the east coast form in the Coral Sea. These storms are often small, but can develop winds in excess of 130 knots(150 mph/242 km/h). New Zealand is sometimes reached by decaying Coral Sea storms; occasionally, it is reached by an intense hurricane. In general, tropical cyclones in this region move southwestward and then recurve southeastward.(Taken from American Practical Navigator Vol 1 1977)
Maps Courtsey of Hurricanes,Typhoons & Tropical Cyclones
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TROPICAL SURFACE CHARTS
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Computer Models
Indian Ocean (FNMOC) (NOGAPS) |
Indian Ocean (FNMOC) (GFS) |
Australia-New Zealand (FNMOC) (NOGAPS) |
Australia-New Zealand (FNMOC) (GFS) |