The HF Radar site is now available via HTTPS. Please update your bookmarks and/or links to use https://hfradar.ndbc.noaa.gov/. On or about 6/26/18, the site will be switched to HTTPS only.
This is the NOAA HF Radar National Server. HF Radar is used to remotely measure ocean surface currents.
| Data Age (in hours): |
 0-3 |
 4-12 |
 13+ |
 Selected Station |
| Site Availability Statistics | | Date | 2018-06-20
| 2018-06-19
| 2018-06-18
| 2018-06-17
| 2018-06-16
| 2018-06-15
| 2018-06-14
| | Reported / Expected | 135 / 182 | 138 / 182 | 135 / 182 | 130 / 182 | 131 / 182 | 136 / 182 | 137 / 182 |
For more information, see IOOS® High Frequency (HF) Radar.
View HF Radar data in Tabular Format.
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