Viewing archive of Friday, 15 November 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Nov 15 1638 UTC

SIDC Forecast

Solar flares

Active (M-class flares expected, probability >=50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
15 Nov 2013	170	014
16 Nov 2013	169	014
17 Nov 2013	168	010

Bulletin

The strongest flare observed during last 24 hours was M1.0 flare (peaked at 02:33 UT, on November 15), originating from the NOAA AR 1899. We expect C-class flares and possibly also M-class flares in the coming hours. The solar wind speed is about 350 km/s and the interplanetary magnetic field magnitude is 4 nT. The Bz component of the interplanetary magnetic field is fluctuating about -4nT during last 12 hours what might result in the unsettled to active geomagnetic conditions. The arrival of the fast flow associated with the low-latitude coronal hole in the northern hemisphere is expected to result at most in active geomagnetic conditions.

Today's estimated international sunspot number (ISN): 115, based on 09 stations.

Solar indices for 14 Nov 2013

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	008
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	136 - Based on 12 stations

Noticeable events summary

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

All times in UTC

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