WZ2540: NOAA Weather Radio for North Kohala, Hawaii
WZ2540 is the NOAA Weather Radio transmitter at North Kohala (transmitter at Kamuela), broadcasting on 162.500 MHz at 300 watts. It carries the National Weather Service Honolulu office's broadcast and covers 1 county, each listed below with the SAME code an alert radio needs to wake for that county and stay quiet for the rest.
| Callsign | WZ2540 |
|---|---|
| Frequency | 162.500 MHz |
| Transmitter | North Kohala (transmitter at Kamuela), Hawaii |
| Power | 300 watts |
| Forecast office | NWS Honolulu |
| Status | Normal (NWS data, July 2026) |
Marine radios often label 162.500 MHz as WX6, but WX channel numbers vary by brand - go by the frequency.
Counties WZ2540 covers
| County | State | SAME code | Note |
|---|---|---|---|
| Hawaii | Hawaii | 015001 | ALL |
A county marked with a note (for example partial coverage) is served for that portion only. Program the six-digit code into your radio's SAME location list - the SAME code guide walks through it, and how alert radios work explains what the radio does with it.
Hearing WZ2540
Any receiver that tunes 162.500 MHz FM can listen: scanners, VHF ham radios, marine sets, or a software-defined receiver. What those do not do is wake you at 3 a.m. - for that you want a dedicated radio with SAME alerting, covered in the buyer's guide.
Every Hawaii transmitter, county and SAME code: NOAA Weather Radio in Hawaii. Or look any county up with the finder.
Sources:
- “NWR County Coverage Listings”. weather.gov. Archived from the original on 2026-07-19. Retrieved 2026-07-16. Every figure on this page - frequency, transmitter site, power, operational status, and county SAME codes - is from this dataset. Transmitters move, change power, and go down for maintenance; verify locally before you rely on it.