KIH21: NOAA Weather Radio for Gulfport, Mississippi
KIH21 is the NOAA Weather Radio transmitter at Gulfport, broadcasting on 162.400 MHz at 1000 watts. It carries the National Weather Service New Orleans/Baton Rouge office's broadcast and covers 6 counties, each listed below with the SAME code an alert radio needs to wake for that county and stay quiet for the rest.
| Callsign | KIH21 |
|---|---|
| Frequency | 162.400 MHz |
| Transmitter | Gulfport, Mississippi |
| Power | 1000 watts |
| Forecast office | NWS New Orleans/Baton Rouge |
| Status | Normal (NWS data, July 2026) |
Marine radios often label 162.400 MHz as WX2, but WX channel numbers vary by brand - go by the frequency.
Counties KIH21 covers
| County | State | SAME code |
|---|---|---|
| George | Mississippi | 028039 |
| Hancock | Mississippi | 028045 |
| Harrison | Mississippi | 028047 |
| Jackson | Mississippi | 028059 |
| Pearl River | Mississippi | 028109 |
| Stone | Mississippi | 028131 |
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 KIH21
Any receiver that tunes 162.400 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 Mississippi transmitter, county and SAME code: NOAA Weather Radio in Mississippi. 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.