Viewing archive of Saturday, 30 March 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Mar 30 1219 UTC

SIDC Forecast

Solar flares

Eruptive (C-class flares expected, probability >= 50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
30 Mar 2013	109	018
31 Mar 2013	115	007
01 Apr 2013	120	012

Bulletin

Solar activity is expected to reach eruptive levels with risks of C-class flares from NOAA ARs 1708 and 1710. A returning region, (previously AR 1698) is just beginning its transit on the disk, and might contribute as well to the slight increase in solar activity. Geomagnetic activity is expected to be mostly quiet for the next 48 hours, with periods of unsettled conditions. Minor storms conditions were observed on March 29 and from 00 to 06 UT on March 30. Strong excursions (down to -10 nT) of the Bz component of the interplanetary magnetic field were observed on March 29th, by the ACE spacecraft.

Today's estimated international sunspot number (ISN): 052, based on 08 stations.

Solar indices for 29 Mar 2013

Wolf number Catania	///
10cm solar flux	105
AK Chambon La Forêt	050
AK Wingst	029
Estimated Ap	033
Estimated international sunspot number	049 - Based on 10 stations

Noticeable events summary

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

All times in UTC

<< Go to daily overview page