Viewing archive of Tuesday, 22 March 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Mar 22 1239 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
22 Mar 2016	089	011
23 Mar 2016	090	011
24 Mar 2016	089	012

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. All Active Regions (AR) have shown low levels of activity. AR 2524 (Macintosh class:Eso; Mag. type:Beta) has shown small amounts of flux emergence and cancellation in HMI observations, this may increase flaring activity a little. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar proton levels have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. The solar wind speed has fluctuated between 400 and 450 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 3 nT and 7 nT. The Bz component was largely positive, fluctuating between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. There is currently a large positive polarity Northern polar coronal hole that has a small extension to low latitudes; this has a small chance of increasing solar wind speeds at the Earth over the coming days. However, the Northern polar coronal hole also has a large extension to lower latitudes in the Eastern hemisphere, which will increase solar wind speeds in approximately 4 days.

Today's estimated international sunspot number (ISN): 019, based on 22 stations.

Solar indices for 21 Mar 2016

Wolf number Catania	///
10cm solar flux	089
AK Chambon La Forêt	015
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	025 - Based on 19 stations

Noticeable events summary

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

All times in UTC

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