Tag: high_frequency_radio

Strong Solar Flare Causes Global Radio Blackout

4 Jul 2026 5:16 p.m. · Source: NOAA

An X1.3 solar flare on July 4, 2026, led to an R3 (Strong) radio blackout across Earth's sunlit side. High-frequency communications were disrupted for about an hour, as reported by NOAA.

Science & Technology Weather Astronomy and Space General Weather Solar Flare X-ray Event Radio Blackout Space Weather NOAA High-Frequency Radio Earth Solar Flares
Powerful X1.0 Solar Flare Causes R3 Radio Blackout

3 Jun 2026 8:01 a.m. · Source: NOAA

NOAA reported an X1.0 X-ray event on June 3, 2026, causing an R3 (Strong) radio blackout for about an hour. The solar flare impacted HF communications across Earth's sunlit side, with GOES-19 used for observations.

Science & Technology Media World X-ray event Solar flare Radio blackout NOAA GOES-19 Space Weather High-frequency radio Solar Flares