When does the National Hurricane Center post updates to its forecasts? Thanks for these threads NN.
Every 3 hours.
Last one was at 2pm edt
https://www.nhc.noaa.gov/
NHC provides four complete Public Advisories and Discussions at 5AM, 11AM, 5PM, and 11PM. When a storm threatens land or a significant storm event occurs, more frequent NHC updates will be provided. The NHC has provided more frequent updates for Dorian than I have seen in many, many years.