WASHINGTON (AP) — Scientists say the solar storm could have been worse.

While some experts think the threat from the solar storm passed by yesterday, space weather forecasters say the effects could continue through this morning.

Senior space weather forecaster Norm Cohen says he isn't aware of any significant effects to key electrical or technological systems. But there was a two-hour blackout of high frequency radio communications — affecting mainly ham radio operations — stretching from eastern Africa to eastern Australia. North American utilities didn't report any problems.

While scientists differ somewhat on whether the effects of the storm have passed, they do agree that other storms may be lining up in the coming days, month and year.

The storm was never seen as a threat to people and is part of the sun's normal 11-year cycle, which is supposed to peak next year.