Year | Total Days | Percentage |
---|
Flare Type | Probability (%) |
---|---|
C-Class | 0% |
M-Class | 0% |
X-Class | 0% |
Region | No. C-Flares | No. M-Flares | No. X-Flares | C Flare Prob. | M Flare Prob. | X Flare Prob. |
---|
A solar wind speed above 500 km/s is considered high and can significantly impact Earth's magnetosphere, potentially causing geomagnetic storms.
A density reading above 10 cm³ is considered high and can impact the Earth's magnetosphere, potentially causing geomagnetic disturbances.
Kp < 5
Kp = 5 (G1)
Kp = 6 (G2)
Kp = 7 (G3)
Kp = 8, 9- (G4)
Kp = 9o (G5)
CME iCoronal Mass Ejection (CME) number | Onset iThe earliest indication of the CME's liftoff time | Dur. iThe duration of the CME's liftoff in hours | Ang. iThe principal angle of the CME in degrees | Width iThe angular width of the CME in degrees | Med. Vel. iThe median velocity of the CME in km/s | Vel. Var. iThe variation (1 sigma) of velocity across the CME's width | Min. Vel. iThe lowest velocity detected within the CME in km/s | Max. Vel. iThe highest velocity detected within the CME in km/s | Halo? iIndicates whether the CME is classified as a halo CME | Video iPlay the video of the CME event |
---|
Bz (nT): This is the vertical component of the interplanetary magnetic field. Changes in Bz can indicate solar storms affecting Earth's magnetic field.
Phi (gsm): This measures the angle of the magnetic field in the solar wind. It helps understand the direction of the magnetic field.
Proton Density (p/cm³): This shows the number of protons in a cubic centimeter of solar wind. High density can signal increased solar activity.
Proton Speed (km/s): This measures the speed of the solar wind protons. Faster speeds can mean stronger solar wind impacting Earth.
Proton Temperature (K): This indicates the temperature of the solar wind protons. Higher temperatures are associated with more active solar regions.
09:00 UTC, Sept 15, 2024
Solar Activity: Solar Cycle 25 remains highly active. The Sun recently produced a powerful X4.5-class solar flare on September 14, 2024, from Active Region (AR) 3825, one of the largest flares of this cycle. This flare was highly eruptive, launching a fast coronal mass ejection (CME) that is expected to deliver a glancing blow to Earth on September 16. NOAA forecasts a strong G3 (strong) geomagnetic storm as a result, with more moderate solar flares (M-class) expected from AR 3825 in the coming days.
Aurora Alerts: The heightened solar activity is creating favorable conditions for auroras. Stunning displays were reported across North America earlier this week, and more auroras are anticipated, especially on September 16 and 17, when the CME hits Earth's magnetic field. Locations as far south as the northern U.S., Canada, and northern Europe could witness these phenomena, particularly under clear skies.