
Several people in the United States (US) will on Friday (Oct 11) have an opportunity to witness the northern lights due to thegeomagnetic storm forecasted by the National Oceanic and Atmospheric Administration (NOAA).
A report by USA Today said that a coronal mass ejectionof plasma clouds and charged particles driving the storm prompted NOAA's Space Prediction Center to issue a rare G4 geomagnetic storm watch for the second time this year.
Despite the threat the solar storm poses to satellites, GPS signals and power grids, the storm watch is good news for aurora chasers, the report said.
Friday'sgeomagnetic storm has a Kp index8, meaning the auroras willmove even further towards the equator and become very bright and very active, the NOAA said.
The USA Today report said that the northern lights might be visibleover much of the northern half of the United States, and perhaps as far south as Alabama to northern California.
The visibility for viewing will also depend on local weather conditions and city lights.
As per the University of Alaska at Fairbanks, Geophysical Institute, the auroras might also be"highly active" in parts of Nevada, Oklahoma, Arkansas and North Carolina.
If the weather is clear, the best aurora is usually visible within an hour or two of midnight, the NOAA said.
(With inputs from agencies)