Geomagnetic activity in response to CMEs that departed the Sun on 25 Aug is now anticipated to extend into 29 Aug. A G1 (Minor) geomagnetic storm watch remains for 27 Aug for expected CH HSS ...
For Immediate Release [May 9, 2024] MEDIA ADVISORY NOAA forecasts severe solar storm; media availability scheduled for May 10 NOAA’s Space Weather Prediction Center (SWPC) — a division of the National ...
A fast coronal mass ejection (CME) erupted from the Sun the evening of 8 October, 2024, and is likely to arrive at Earth on 10 October. This CME has been analyzed and speed estimates are 1200 to 1300 ...
This is a prediction of the intensity and location of the aurora borealis tonight and tomorrow night over North America. This product is based on the OVATION model and uses the maximum forecast ...
Members of the press are welcome to attend the workshop's open sessions at no charge. Please contact Michelle McCambridge (mmccamb@ucar.edu) to register and for any additional information. Note: Audio ...
Solar wind data refers to in situ magnetic field, solar wind plasma, and particle data from any spacecraft located upwind of Earth, typically orbiting the L1 Lagrange point, that is available to SWPC ...
Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona. They can eject billions of tons of coronal material and carry an embedded magnetic field (frozen ...
Default All Numbering On/Off Solar Cycle F10.7cm Radio Flux Progression Updated: 2026-09-02 Monthly Values 75th Percentile Predicted F10.7 Range 50th Percentile Predicted F10.7 Range 25th Percentile ...
On Thursday, May 9, 2024, the NOAA Space Weather Prediction Center issued a Severe (G4) Geomagnetic Storm Watch. At least five earth-directed coronal mass ejections (CMEs) were observed and expected ...
The observed and predicted Solar Cycle is depicted in Sunspot Number in the top graph and F10.7cm Radio Flux in the bottom graph. The predicted progression for the current solar cycle (Cycle 25) is ...
The K-index, and by extension the Planetary K-index, are used to characterize the magnitude of geomagnetic storms. Kp is an excellent indicator of disturbances in the Earth's magnetic field and is ...
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