Hurricane tracks and positions provide information on where the storm has been, where is it going, where it is currently located and the category as defined by wind speed. This data is provided by NOAA National Hurricane Center (NHC). Forecast points: represent the official NHC forecast locations of the center of a tropical cyclone. Forecast center positions are given for projections valid 12, 24, 36, 48, 72, 96, and 120 h after the forecast's nominal initial time.Forecast points from the JTWC are valid 12, 24, 36, 48 and 72 h after the forecast’s initial time. Forecast track: This product aids in the visualization of an NHC official track forecast, the forecast points are connected by black line segments. The track line(s) are not a forecast product, however, and because there are an infinite number of ways to connect a set of forecast points, the lines should not be interpreted as representing a specific forecast for the location of a tropical cyclone in between official forecast points. It is also important to remember that tropical cyclone track forecasts are subject to error, and that the effects of a tropical cyclone can span many hundreds of miles from the center.The Cone of Uncertainty: The cone represents the probable track of the center of a tropical cyclone, and is formed by enclosing the area swept out by a set of circles along the forecast track (at 12, 24, 36 hours, etc). The size of each circle is set so that two-thirds of historical official forecast errors over a 5-year sample fall within the circle. Based on forecasts over the previous 5 years, the entire track of a tropical cyclone can be expected to remain within the cone roughly 60-70% of the time. It is important to note that the area affected by a tropical cyclone can extend well beyond the confines of the cone enclosing the most likely track area of the center.Watch/Warning: Coastal areas placed under tropical cyclone watches or warnings are delimited by specific geographical locations known as breakpoints (e.g., a hurricane warning is in effect from breakpoint A to breakpoint B). This file consists of one or more lines connecting the breakpoints delimiting any current watches or warnings.