A pulse of radiation from the flare ionized the upper layers of Earth’s atmosphere. This caused a blackout of radio transmissions at frequencies below 10 MHz. The effect was particularly strong above Australia and parts of the south Pacific: blackout map.
Because the blast took place from just beyond the west limb, it should have no major impact on our planet.
Perhaps we will see 2290 again in 2 weeks?
WATCH: Double barrel M-class solar flares.
Chance of Magnetic Storms
NOAA forecasters estimate a 25% chance of more M-class flares on March 3rd, subsiding to 10% on March 4th as sunspot AR2290 rotates onto the farside of the sun.
Ham radio operators and mariners may notice disturbances to HF communicatons during the next 24-48 hours.
NOAA forecasters estimate a 55% chance of high-latitude geomagnetic storms on March 3rd. The cause: A stream of solar wind is buffeting our planet’s magnetic field, sparking bright auroras around the Arctic Circle.
Aside from the aforementioned eruptions, solar activity during the past 48 hours was moderate. Region 2290, now located behind the west limb, produced a pair of low level M-Flares, along with several minor C-Flares. The active region will continue to turn further onto the farside of the sun and should have little to no influence on our planet.
Elsewhere, region 2292 grew during the past day and will continue to be monitored. Region 2293 decayed somewhat and is not considered a high threat for noteworthy solar flares. A number of coronal mass ejections were detected during the past day and each appear to have originated from the farside of the sun.
Periods of minor (G1) geomagnetic storming continued at high latitudes. Solar wind speeds remain elevated above 600 km/s. Geomagnetic conditions should gradually decline during the next 48 hours. Sky watchers, especially around the Arctic Circle should remain alert for visible aurora displays.
Earth is inside a solar wind stream flowing from the indicated coronal hole.