Impulsive M7.5 solar flare erupts from Earth-facing Region 4409, geomagnetic conditions remain elevated

Region 4409 is located at the center of the solar disk, suggesting any coronal mass ejection…

Asymmetric halo CME following April 1 filament eruption forecast to deliver a glancing blow on April 4

A filament eruption spanning approximately 25° occurred in Active Region 4403 at 23:28 UTC on April…

Major X1.4 solar flare erupts from AR 4405, producing a large CME

A Type II Radio Emission with an estimated velocity of 1 872 km/s was associated with…

Geomagnetic storm reaches G3 levels after March 18 CME impacts Earth

A G3 – Strong geomagnetic storm was recorded late on March 20 into early March 21,…

Earth-directed CME triggers G2 geomagnetic storm watch, aurora possible as low as New York

NOAA’s Space Weather Prediction Center (SWPC) issued a G2 – Moderate geomagnetic storm watch, forecasting the…

M2.7 solar flare erupts from Region 4392, CME produced

A Type II Radio Emission with an estimated velocity of 1 227 km/s was associated with…

G1 – Minor geomagnetic storm underway, NOAA forecasts possible G2 conditions

Data from NOAA show the disturbance began when Kp reached 5 during the 03:00–06:00 UTC period,…

G2 – Moderate geomagnetic storm in progress, auroras possible from New York to Washington state

A G2 – Moderate geomagnetic storm is in progress following the arrival of a coronal hole…

Geomagnetic storms possible this weekend as CME from M1.0 solar flare heads toward Earth

A M1.0 solar flare erupted from Active Region 4373 (beta) at 08:58 UTC on February 13.…

Impulsive X4.2 solar flare erupts from geoeffective Active Region 4366

A major X4.2 solar flare erupted from geoeffective Active Region 4366 at 12:13 UTC on February…