Viewing archive of Thursday, 17 March 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Mar 17 1230 UTC

SIDC Forecast

Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
17 Mar 2016	095	018
18 Mar 2016	100	011
19 Mar 2016	100	007

Bulletin

No significant flaring activity was observed during the last 24 hours. NOAA active regions 2519, 2521 were stable, while NOAA 2522 rounded the West limb. NOAA 2523 and 2524 were newly numbered regions but currently have no flaring potential. A new region is emerging near N10E05. There is a probability of 30% for C-class flares. The CME mentioned in the previous bulletin (with first measurement at March 16, 7:00 UT in LASCO/C2) is travelling well of the Sun-Earth line and is expected to have no consequence for the Earth environment. The proton flux at >10MeV has nearly returned to the background level.

The solar wind is still disturbed due to high speed stream influences, with solar wind speed currently around 600 km/s. The magnetic field magnitude ranges between 5 and 10 nT. Due to a prolonged period of negative Bz, geomagnetic conditions were at minor storm levels (K=5) at global level (NOAA estimated Kp) and at active levels at Dourbes. A few time slots of active levels are well possible for the next 24 hours.

Today's estimated international sunspot number (ISN): 061, based on 19 stations.

Solar indices for 16 Mar 2016

Wolf number Catania	///
10cm solar flux	091
AK Chambon La Forêt	033
AK Wingst	024
Estimated Ap	023
Estimated international sunspot number	064 - Based on 21 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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