It wasn't until 00:41 a.m. EDT ( 0441 GMT) on March 24 that NOAA uprated the warning to a severe G4 storm, which was after a stronger than forecasted G3 storm escalated to a G4 at 12:04 a.m. EDT ...

If you've never heard of a solar storm or geomagnetic storm, chances are you'll learn about those really quickly this weekend. Earth is under a severe G4 watch or geomagnetic storm watch for the ...

According to SWPC, only three severe geomagnetic storms have been observed during this solar cycle, which began in December 2019. The last G4 (severe) was spotted on March 23, 2024, this triggered ...

It was initially graded a G3 solar storm, but was upgraded to a G4 storm by 1:00 PM EDT. They say there is still a possibility it reaches G5 status by the end of tomorrow, but it remains a G4 watch.

A G4-level solar storm, such as the one expected to hit as soon as Friday evening, can cause issues with the power grid, radio communications and the accuracy of GPS.

Since the ongoing solar cycle began in December 2019, NOAA has only observed three Severe geomagnetic storms, the most recent (also a G4 rating) occurring in March 2024.

That event was the third geomagnetic storm to reach G4 status during the current 11-year solar cycle, which began in 2019, according to the SWPC. At that time, the agency said the event posed no ...

A severe solar storm could affect high-frequency communications, GPS, power grids and other technology, the National Oceanic and Atmospheric Administration warned on Friday. The G4 storm is ...

“The strongest storms (G5-extreme) are the most rare, with only 4 during the course of an average solar cycle.” A G4 geomagnetic storm is considered severe on the NOAA space weather scale.

The Space Weather Prediction Center (SWPC) has noted at least five CMEs directed at Earth, causing the potential for a severe Geomagnetic Storm. Because of this, the SWPC has issued a rare G4 watch.

GREENVILLE, S.C. (FOX Carolina) - A G4 solar storm is expected to bring the Aurora Borealis farther south into the U.S. over Wednesday night and possible Thursday night. Right now it looks like we ...

A G4-level solar storm, such as the one expected to hit as soon as Friday evening, can cause issues with the power grid, radio communications and the accuracy of GPS.