Hurricane and Hurricane Express have a great feature which allows you to refresh the storm data for all storms at any time. Just go to the storm names page, and pull the menu down with your finger. When you do, you will see something like the image here and when you let go it will refresh and update the last refresh time. The NHC is updating on 3 hour intervals right now, 10am, 1pm, 4pm, 7pm, 10pm, 1am and 4am CDT. They will continue with 3 hour intervals while there are watches and/or warnings posted.