Solar wind
speed: 428.7 km/sec
density: 2.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1854 UT

X-ray Solar Flares
6-hr max: B4 1316 UT Jul22
24-hr: C1 2005 UT Jul21
explanation | more data
Updated: Today at: 1900 UT

A CRACK IN EARTH'S MAGNETIC FIELD: During the early hours of July 22nd (0330 - 1000 UT) a crack opened in Earth's magnetic field: data. Solar wind poured in, fueling a period of geomagnetic unrest (Kp=4). So far no reports of auroras have been received, probably due to the glare of northern summer sunlight. Quiet conditions have since resumed.

Solar wind
speed: 389.4 km/sec
density: 4.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0545 UT

X-ray Solar Flares
6-hr max: B4 0219 UT Jul23
24-hr: B4 1316 UT Jul22
explanation | more data
Updated: Today at: 0550 UT

Solar wind
speed: 358.6 km/sec
density: 3.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0816 UT

X-ray Solar Flares
6-hr max: B8 0219 UT Jul24
24-hr: C4 0033 UT Jul24
explanation | more data
Updated: Today at: 0820 UT

Solar wind
speed: 332.0 km/sec
density: 3.6 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1500 UT

X-ray Solar Flares
6-hr max: B3 0905 UT Jul24
24-hr: C4 0033 UT Jul24
explanation | more data
Updated: Today at: 1505 UT

Solar wind
speed: 321.0 km/sec
density: 3.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0745 UT

X-ray Solar Flares
6-hr max: B2 0457 UT Jul25
24-hr: B4 0816 UT Jul24
explanation | more data
Updated: Today at: 0750 UT

ALL QUIET ALERT: A CME expected to hit Earth on July 23rd or 24th has missed. Our planet's magnetic field is quiet and should remain so until July 28th when a new stream of solar wind arrives. The gaseous material is flowing from a sinuous hole in the sun's atmosphere.

Solar wind
speed: 317.9 km/sec
density: 4.1 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0450 UT

X-ray Solar Flares
6-hr max: B2 2349 UT Jul25
24-hr: B2 0457 UT Jul25
explanation | more data
Updated: Today at: 0455 UT

GEOMAGNETIC FORECAST: Today, Earth's magnetic field is quiet. It should stay that way until July 28th when a narrow stream of solar wind arrives. The gaseous material is flowing from a sinuous hole in the sun's atmosphere. The stream's arrival is expected to trigger minor (Kp=4) geomagnetic unrest.

Solar wind
speed: 322.6 km/sec
density: 10.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0624 UT

X-ray Solar Flares
6-hr max: B1 0213 UT Jul27
24-hr: B2 1609 UT Jul26
explanation | more data
Updated: Today at: 0630 UT

🔥 Solar wind
speed: 507.6 km/sec
density: 8.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1340 UT

X-ray Solar Flares
6-hr max: B2 0744 UT Jul28
24-hr: B9 2226 UT Jul27
explanation | more data
Updated: Today at: 1345 UT

THE SOLAR WIND HAS ARRIVED: Earth is entering a stream of solar wind flowing ~400 km/s from a sinuous hole in the sun's atmosphere. First contact during the early hours of July 28th opened a crack in Earth's magnetic field, sparking an hours-long episode of minor (Kp=4) geomagnetic unrest. So far, no auroras have been reported.

🔥Solar wind
speed: 541.7 km/sec
density: 7.1 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0600 UT

X-ray Solar Flares
6-hr max: A8 0147 UT Jul29
24-hr: B6 0738 UT Jul28
explanation | more data
Updated: Today at: 0605 UT

Solar wind
speed: 444.0 km/sec
density: 3.9 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0620 UT

X-ray Solar Flares
6-hr max: A7 0039 UT Jul30
24-hr: B1 1934 UT Jul29
explanation | more data
Updated: Today at: 0625 UT

Solar wind
speed: 442.7 km/sec
density: 9.4 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0854 UT

X-ray Solar Flares
6-hr max: A5 0658 UT Jul31
24-hr: A5 1913 UT Jul30
explanation | more data
Updated: Today at: 0900 UT

Solar wind
speed: 387.3 km/sec
density: 4.2 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1541 UT

X-ray Solar Flares
6-hr max: A5 0946 UT Aug01
24-hr: B2 1748 UT Jul31
explanation | more data
Updated: Today at: 1545 UT

Solar wind
speed: 360.1 km/sec
density: 6.5 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0315 UT

X-ray Solar Flares
6-hr max: A8 0145 UT Aug03
24-hr: B1 1835 UT Aug02
explanation | more data
Updated: Today at: 0320 UT

Solar wind
speed: 307.0 km/sec
density: 6.8 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 2346 UT

X-ray Solar Flares
6-hr max: B5 0329 UT Aug04
24-hr: B5 0329 UT Aug04
explanation | more data
Updated: Today at: 0540 UT

DENSE SOLAR WIND SPARKS GEOMAGNETIC STORM: A dense wave of solar wind gently crashed against Earth's magnetic field on Aug. 2nd, sparking a G1-class geomagnetic storm.

It may have been a ripple from a passing CME--one of several "near miss CMEs" that left the sun in late July. Twilight auroras mixed with noctilucent clouds were seen in Norway.

Solar wind
speed: 307.1 km/sec
density: 5.7 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0335 UT

X-ray Solar Flares
6-hr max: A6 2140 UT Aug04
24-hr: B2 0339 UT Aug04
explanation | more data
Updated: Today at: 0340 UT

Solar wind
speed: 319.7 km/sec
density: 19.1 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0405 UT

X-ray Solar Flares
6-hr max: B1 2234 UT Aug05
24-hr: B1 2234 UT Aug05
explanation | more data
Updated: Today at: 0410 UT