![]() ![]() The models available on this site are for educational purposes only. Normal NHC advisory update times are 3Z, 9Z, 15Z, and 21Z, with special advisories possible at any time, and these do not appear here. (And it may be a half hour after that for late posted data.) Sometimes 6Z best track data may not be available for weaker storms. Under most normal circumstances, best track data and NHC model data come in starting around 0:30, 6:30, 12:30, and 18:30Z on our site. Since the positions are valid at the time noted, it may take an hour for them to be posted to the ATCF system and then be downloaded by our site. Normal ATCF update times are 0Z, 6Z, 12Z, and 18Z. Updates made through regular and special forecast advisories may not be reflected here for three hours or more since ATCF data is usually offset from NHC advisory data by 3 hours. Please consult the agency responsible for issuing forecasts in your basin, as this information, in addition to possibly containing errors from time to time, is only updated every 6 hours by the NHC. That system and the processing system our site uses may contain errors at times. Our site downloads the latest files and processes the data to be visually displayed. The best track data, model data and center fix data come from the Automated Tropical Cyclone Forecasting System (ATCF). ![]() Refer to the tropical outlooks at the NHC and the CPHC for guidance on the possibility of development from these areas and look for the latest official advisory data if the storm is a tropical depression or higher. The current position and intensity on this page is provided to show what data the early cycle models initialized with.Īn invest area, noted with a number from 90 to 99, represents an area that is being watched for possible development. For this important data you must refer to the National Hurricane Center. The current position and intensity of any storm on this page does not come from the latest advisory from the National Hurricane Center (NHC). ![]()
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