The India Decade

Solar storm heading for Earth as NOAA issues G2 geomagnetic watch

A pair of coronal mass ejections merged in space and are expected to disturb high-latitude power grids and radio signals.

By The India Decade

National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration · “2016-05-09 17 26 44 National Weather Service headquarters on East-West Highway (Maryland State Route 410) in Silver Spring, Montgomery County, Maryland” by Famartin (CC BY-SA 4.0) via Wikimedia Commons

What is happening with the solar storm Earth is facing a moderate G2 geomagnetic storm on 11 October after two separate solar eruptions combined on their way through space. The US National Oceanic and Atmospheric Administration issued a storm watch following back-to-back coronal mass ejections from the Sun on 7 and 8 October. The second eruption travelled faster than the first, merging into a single cloud of charged plasma that is now sweeping towards Earth. Forecasts indicate the disturbance will peak when the combined solar material hits the planet's magnetic field. While geomagnetic storms can strain infrastructure, space weather forecasters classify a G2 rating as moderate on their five-tier scale. ## What disruptions could the G2 storm cause When coronal mass ejections strike Earth's magnetosphere, they transfer energy into the upper atmosphere, which can disturb electrical networks and radio transmissions. At G2 intensity, the primary effects occur at higher latitudes closer to the polar regions. Power grid operators in northern areas may record voltage fluctuations, and satellite control teams might need to adjust spacecraft orientations to account for extra atmospheric drag. High-frequency radio signals could experience temporary degradation, and satellite navigation accuracy may shift slightly during peak storm activity. The storm is also expected to push the northern lights further south than usual, bringing visual sky displays to high-latitude locations that rarely see auroras. ## Will the solar storm affect India The incoming storm poses no direct threat to daily life across India. Because India is situated at lower geomagnetic latitudes, the domestic power grid, mobile networks, and internet infrastructure will operate without noticeable disruption. Forecasters confirmed that widespread power cuts or severe signal blackouts will not occur in the region. Skywatchers in India will also miss out on atmospheric light shows, as aurora displays linked to a G2 storm remain confined to latitudes much closer to the poles. ## How space weather is measured The Space Weather Prediction Center uses three distinct five-point scales to monitor solar events: Geomagnetic storms: Rated G1 to G5, measuring disturbances in Earth's magnetic field. Solar radiation storms: Rated S1 to S5, tracking energetic particle surges. * Radio blackouts: Rated R1 to R5, measuring solar x-ray impacts on the ionosphere. The current event remains a G2 geomagnetic storm, meaning its impact is restricted to localized high-latitude infrastructure and satellite system management.

Key numbers

WhatFigureSource
Storm severity ratingG2 (Moderate)US National Oceanic and Atmospheric Administration
Dates of solar eruptions7 October 2026 and 8 October 2026US National Oceanic and Atmospheric Administration
Expected Earth impact date11 October 2026US National Oceanic and Atmospheric Administration

In this story

NameRole in the story
Space Weather Prediction CenterMonitored the coronal mass ejections and predicted storm intensity.
National Oceanic and Atmospheric AdministrationIssued the geomagnetic storm watch for Earth.
EarthTarget planet impacted by the incoming coronal mass ejections.

Topics

The day’s reporting, once each morning. No advertising.

More on this story