Planetary Kp index has reached 6.0, which is NOAA level G2 (Moderate geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
GOES satellites measured a M1.7-class solar flare peaking at 2026-10-19T09:03:00Z (X-ray flux 1.7e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.4-class solar flare peaking at 2026-10-16T15:42:00Z (X-ray flux 1.4e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
Planetary Kp index has reached 7.0, which is NOAA level G3 (Strong geomagnetic storm). Aurora likely at mid-latitudes (much of the northern US and central Europe). Possible impacts: voltage irregularities on power grids, GPS degradation, HF radio problems, satellite drag.
GOES satellites measured a M1.2-class solar flare peaking at 2026-10-10T14:12:00Z (X-ray flux 1.2e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.4-class solar flare peaking at 2026-10-09T14:09:00Z (X-ray flux 1.4e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.6-class solar flare peaking at 2026-10-08T15:42:00Z (X-ray flux 1.6e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.4-class solar flare peaking at 2026-10-06T06:10:00Z (X-ray flux 1.4e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.1-class solar flare peaking at 2026-10-05T18:48:00Z (X-ray flux 1.1e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
Planetary Kp index has reached 5.3, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Planetary Kp index has reached 5.0, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Planetary Kp index has reached 5.0, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Proton flux (>=10 MeV) has reached 11 pfu - NOAA scale S1. Radiation storms mainly affect satellites, astronauts and passengers/crew on polar flight routes; they can also degrade HF radio in polar regions.
GOES satellites measured a M1.0-class solar flare peaking at 2026-09-05T15:18:00Z (X-ray flux 1.0e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.2-class solar flare peaking at 2026-09-04T07:53:00Z (X-ray flux 1.2e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.4-class solar flare peaking at 2026-09-02T19:11:00Z (X-ray flux 1.4e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.0-class solar flare peaking at 2026-08-26T12:14:00Z (X-ray flux 1.0e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M2.2-class solar flare peaking at 2026-08-26T06:34:00Z (X-ray flux 2.2e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M7.0-class solar flare peaking at 2026-08-25T10:02:00Z (X-ray flux 7.0e-5 W/m2, radio-blackout scale ~R2). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M2.0-class solar flare peaking at 2026-08-25T01:26:00Z (X-ray flux 2.0e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.3-class solar flare peaking at 2026-08-24T19:27:00Z (X-ray flux 1.3e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.4-class solar flare peaking at 2026-08-21T09:41:00Z (X-ray flux 1.4e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M8.1-class solar flare peaking at 2026-08-20T11:42:00Z (X-ray flux 8.1e-5 W/m2, radio-blackout scale ~R2). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.3-class solar flare peaking at 2026-08-20T07:56:00Z (X-ray flux 1.3e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.0-class solar flare peaking at 2026-08-19T18:51:00Z (X-ray flux 1.0e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
Planetary Kp index has reached 5.3, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Planetary Kp index has reached 5.0, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Planetary Kp index has reached 5.3, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Planetary Kp index has reached 5.7, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
Proton flux (>=10 MeV) has reached 10 pfu - NOAA scale S1. Radiation storms mainly affect satellites, astronauts and passengers/crew on polar flight routes; they can also degrade HF radio in polar regions.
Proton flux (>=10 MeV) has reached 11 pfu - NOAA scale S1. Radiation storms mainly affect satellites, astronauts and passengers/crew on polar flight routes; they can also degrade HF radio in polar regions.
GOES satellites measured a M1.1-class solar flare peaking at 2026-07-27T02:43:00Z (X-ray flux 1.1e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.5-class solar flare peaking at 2026-07-26T15:26:00Z (X-ray flux 1.5e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
Planetary Kp index has reached 5.3, which is NOAA level G1 (Minor geomagnetic storm). Aurora likely at high latitudes (northern-tier US states, Scotland, Scandinavia, Canada). Possible impacts: minor power grid fluctuations, minor satellite operation impacts, migratory animals affected.
GOES satellites measured a M3.5-class solar flare peaking at 2026-07-22T06:34:00Z (X-ray flux 3.5e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.9-class solar flare peaking at 2026-07-21T17:27:00Z (X-ray flux 1.9e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M3.5-class solar flare peaking at 2026-07-20T22:25:00Z (X-ray flux 3.5e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M2.5-class solar flare peaking at 2026-07-20T14:36:00Z (X-ray flux 2.5e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.2-class solar flare peaking at 2026-07-12T08:11:00Z (X-ray flux 1.2e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.2-class solar flare peaking at 2026-07-09T02:27:00Z (X-ray flux 1.2e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M1.6-class solar flare peaking at 2026-07-08T17:56:00Z (X-ray flux 1.6e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
GOES satellites measured a M4.0-class solar flare peaking at 2026-07-07T14:19:00Z (X-ray flux 4.0e-5 W/m2, radio-blackout scale ~R1). Flares cause immediate shortwave radio blackouts on Earth's sunlit side. If this flare launched a CME toward Earth, a geomagnetic storm could follow in 1-3 days - worth watching the Kp index.
