The tropical storm warning has gone up for Oahu, but Honolulu's Mayor Kirk Caldwell will wait to issue an emergency declaration after announcing what city services and areas will close ahead of the storm.
When Hurricane Iselle arrives in the islands, the storm will put the brakes on Oahu's normal bus schedule.
"No transit rider should plan on boarding the bus after 12 a.m., that's about 10-15 buses. Get on your bus by 12 a.m. if you want to get home. Between 10 p.m. to 1 a.m. we'll be doing evacuation routes to the 10 shelters that will open," said Mike Formby, with Oahu Transit Services.
Riders can simply flag them down a bus and drivers will take them to the nearest shelter. The ten emergency shelters will open at 10 pm. Including, for the first time, five emergency locations that will also be pet friendly.
"You're going to be able to bring your pet in a cage or a leash and you can even bring your stuff on the bus. You can't bring large things, but you can bring an overnight bag for clothes and other things," said Caldwell.
Bus service will remain shut down throughout Friday, which is when Oahu is expected to see the greatest impact from Iselle.
Handi-van service for its 3,000 daily riders will also be cut to just transportation for life-threatening care.
"We are canceling our reservations on Friday and we are calling residents to give them time to plan their day," said Roger Morton, with Oahu Transit Services.
Iselle will not only bring heavy rain and strong winds, it will also bring big surf.
Lifeguards may not be in their towers to watch over the waves though.
Tropical storm force winds could make that too dangerous and the beach parks will be closed.
"We're going to be in a response-mode back in vehicles. You can get in touch with us through 911, but we will not be as active as we normally are. The beach parks are closed and we've advising the public, "Don't go in the water -- it will be dangerous," said Jim Howe, the Director of Ocean Safety.
If Iselle moves through the state quickly, parks and bus service could return to normal on Saturday.