Once available, they are updated by respective WFOs with each new forecast issued by the National Hurricane Center (NHC) or Central Pacific Hurricane Center (CPHC) and maintained until the threats of these hazards have locally passed.How do I find the hurricane threat levels for a location?
Under the listing of the Tropical elements in the top left drop down menu, select the "hurricane threat" grid for the desired hazard. There, you will see the threat levels depicted as you would above; click on any given point to sample the threat level for that location. These versions will only be available through the NDFD.What information is available on the tropical web portal?
A breakdown of the graphical information provided on the tropical web portal when tropical cyclone wind or storm surge watches and/or warnings are in effect. Select a hazard in order to display the corresponding threat map as assessed by the local WFO. A color-coded legend unique to each hazard is also provided.