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Geo-Space Environment | 2017-03-28

2017/03/28

Big sunspot AR2644 has multiple dark cores as large as Earth and a ‘beta-gamma’ magnetic field that harbors latent energy for strong M-class explosions. So far the smaller sunspot, AR2645, is the more active of the two, producing C-flares at a 5x greater rate. 

Sunspot number: 49

Solar wind
speed: 711.5 km/sec
density: 9.2 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 0844 UT

The Radio Sun
10.7 cm flux: 83 sfu
explanation | more data
Updated 28 Mar 2017

X-ray Solar Flares
6-hr max: C3
0456 UT Mar28
24-hr: C3
0456 UT Mar28
explanation | more data
Updated: Today at: 0800 UT

Planetary K-index
Now: Kp= 5 storm
24-hr max: Kp= 6
storm
explanation | more data

Interplanetary Mag. Field
Btotal: 4.7 nT
Bz: -2.6 nT south
more data: ACE, DSCOVR
Updated: Today at 0844 UT

Spaceweather.com
SpaceWeatherLive.com


G2 Warning Extended

Tuesday, March 28, 2017 04:06 UTC

SWPC forecasters have extended the G2 Geomagnetic Storm Warning to 8:00 AM EDT tomorrow (28/1200 UTC) as coronal hole high speed stream effects continue to influence Earth.

The G2 (Moderate) geomagnetic storm warning has been extended to 27 March at 2100 UTC (5:00 pm ET) and the G1 (Minor) geomagnetic storm warning has been extended to 28 March at 0300 UTC (27 March 11:00 pm ET) as coronal hole high speed stream effects continue.

G2 (Moderate) Geomagnetic Storm Levels Observed

Monday, March 27, 2017 10:55 UTC

G2 (Moderate) geomagnetic storm levels were observed at 10:24 UTC on 27 March 2017 (06:24 AM ET) due to coronal hole high speed stream activity.

SWPC Forecasters have issued a G1 (Minor) geomagnetic storm watch for 27 March and a G2 (Moderate) geomagnetic storm watch for 28 and 29 March due to the anticipated impact of a recurrent, negative-polarity coronal hole. This coronal hole feature produced G2 (Moderate) storm conditions during its last rotation and is expected to impact the Earth’s magnetosphere in a similar manner. Stay tuned for updates as we respond to these geomagnetic storm influences.

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