Viewing archive of Tuesday, 24 November 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Nov 24 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
24 Nov 2015	118	006
25 Nov 2015	120	022
26 Nov 2015	122	011

Bulletin

In the past 24 hours, beta region NOAA AR 2454 produced one C1.3 flare which peaked around 12:13 UT on November 23. C flares are expected within the next 24 hours, with a 10% chance for an M flare. The Earth is currently within a slow solar wind region regime. Solar wind speed varied between 290 and 350 km/s in the past 24 hours, while the magnitude of the Interplanetary Magnetic Field ranged between 1 and 4 nT. Over the past 24 hours, geomagnetic conditions have been quiet to unsettled (K Dourbes between 0 and 3; NOAA Kp between 0 and 1). Quiet to unsettled geomagnetic conditions (K Dourbes < 4) are expected on November 24. The expected arrival of a coronal hole high speed stream may cause active (K Dourbes = 4) geomagnetic levels on November 25 and 26, with a slight chance for minor storm intervals (K Dourbes = 5).

Today's estimated international sunspot number (ISN): 061, based on 09 stations.

Solar indices for 23 Nov 2015

Wolf number Catania	///
10cm solar flux	120
AK Chambon La Forêt	003
AK Wingst	001
Estimated Ap	001
Estimated international sunspot number	056 - Based on 29 stations

Noticeable events summary

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

All times in UTC

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