Text Based Homepage
|SPSD Tropical Program Products:|
Subjective position and intensity estimates of tropical disturbances and cyclones across the globe using the internationally recognized Dvorak technique.
ATCF Info|ATCF Format Description
|Text bulletins disseminated by 0400Z, 1000Z, 1600Z, and 2200Z describing the position and intensity estimates for tropical disturbances and tropical cyclones in the Eastern and Southern Hemispheres.|
Subjective position estimates of tropical disturbances and cyclones across the globe using a variety of microwave sensors.
|The ADT provides an automated, objectively-derived estimate of the tropical cyclone location and intensity using the latest official forecast bulletins from the Joint Typhoon Warning Center (JTWC) and from Regional Specialized Meteorological Centers (RSMC), such as the National Hurricane Center (NHC) and the Central Pacific Hurricane Center (CPHC).|
|The eTRaP is a simple ensemble that allows for the generation of probabilistic forecasts of rainfall in addition to deterministic rainfall totals.||The Tropical Cyclone Formation Probability Product provides an estimate of the probability of tropical cyclone formation within the next 24to 48 hours in 1 by 1 degree latitude/longitude areas from 45S to 45N and 0 to 360E.|
|MTCSWA combines information from several data sources to create a mid-level wind analysis which is then adjusted to the surface. Eight products are displayed, most notably an inner core scale surface wind analysis.||Microwave-based Tropical Cyclone (TC) Products provide estimates of tropical cyclone maximum wind speed, minimum sea level pressure, radii of 34, 50, and 64 knot winds in 4 quadrants relative to the storm center, and balanced horizontal winds from 1000 to 200 mb within 600 km of the storm center.|
|Outside Tropical Products:|
|National Hurricane Center||Central Pacific Hurricane Center|
The National Hurricane Center is the Regional Specialized Meteorological Center (RSMC) for the Atlantic Basin and is a resource for official tropical cyclone positions, intensities and forecast tracks.
The Central Pacific Hurricane Center is the Regional Specialized Meteorological Center (RSMC) for the Central Pacific Basin and is a resource for official tropical cyclone positions, intensities and forecast tracks.
|Joint Typhoon Warning Center||
Regional Specialized Meteorological Centers
Tropical Cyclone Warning Centers*
| The Joint Typhoon Warning Center (JTWC) provides tropical cyclone analysis, forecast and warning support for the Department of Defense, and other US Government assets in the Pacific and Indian Oceans. || Regional Specialized Meteorological Centers and Tropical Cyclone Warning Centers (RSMC/TWTC) provide official position, intensity and forecast tracks for tropical cyclones within their areas of resonsibility.
Tokyo, Japan | New Delhi, India | La Reunion, FRA Jakarta, Indonesia | Perth, AUS | Darwin, AUS Brisbane, AUS | Wellington, NZ | Nadi, Fiji |
Port Moresby, PNG
|Brazil National Institute of Meteorology*||NCEP International Desk|
|The Brazil National Institute of Meteorology is responsible for issuing the official warning for tropical cyclones in the South Atlantic Basin.||NOAA's Hydrometeorological Prediction Center provides visiting scientists meteorological training with an emphasis on the operational use and application of numerical model products.|
Users are reminded that posted SPSD position and intensity estimates are based on the application of the Dvorak technique to satellite imagery. Official determinations of systems' status, location and intensity are provided by the Regional Specialized Meteorological Centers listed above.|