A good, free way to keep up with the latest weather information in Hawaii is to have a Weather Radio. Most can be purchased for about $20 and up. They don’t have to be complex with the most basic ones offering just the weather band.
I have an older Sony AM/FM/VHF TV radio that also has the NOAA’s Weather radio frequencies built right into it. The weather frequencies for the various Hawaii islands are as follows (as posted on the NOAA Weather Radio Page):
NOAA Weather Radio broadcasts National Weather Service warnings, watches, forecasts and other hazard information 24 hours a day. The radio program broadcasts on frequencies 162.400 (channel 1), 162.450 (channel 3), 162.500 (channel 6) and 162.550 (channel 7) in the Hawaiian Islands. Weather radios can be purchased at local electronics stores, mail order catalogs and various other locations.
Station KBA99 serves Kauai, Oahu, Molokai, Maui, Lanai, and parts of the Big Island, from transmitters located on Oahu (KBA99 Mt. Kaala, 162.550 MHz; andWWF39 Hawaii Kai, 162.450 MHz) and on Kauai (WWG74 Kokee, 162.400 MHz).
Station WWG75 serves Molokai, Lanai, Maui, and parts of the Big Island, from a transmitter located on Maui (WWG75 Haleakala, 162.400 MHz).
It is a good thing to have a battery powered radio with this feature for when the electricity goes off. If you don’t have a weather radio, just having any type of radio will be of help as broadcast stations air critical information during times of emergency. Be sure to have a lot of batteries on hand or a hand crank radio that self powers.