Viewing archive of Friday, 5 August 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Aug 05 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
05 Aug 2016	079	017
06 Aug 2016	081	014
07 Aug 2016	081	007

Bulletin

Solar activity was low. In the past 24 hours, new beta region NOAA AR 2571 produced several B flares and one C1.4 flare (peaking at 10:12 UT on August 5). More C flares are possible in the next 24 hours. Solar wind speed measured by DSCOVR varied between about 530 and 680 km/s, indicative of a high speed stream. The magnitude of the Interplanetary Magnetic Field varied between about 2 and 8 nT. In the past 24 hours, quiet to active geomagnetic levels were registered (K Dourbes between 1 and 4; NOAA Kp between 2 and 4). Active levels (K Dourbes = 4) are possible on August 5 and 6 under the influence of the coronal hole high speed stream, with a slight chance for a minor geomagnetic storm (K Dourbes = 5). A return to quiet to unsettled geomagnetic conditions is expected on August 7.

Today's estimated international sunspot number (ISN): 037, based on 22 stations.

Solar indices for 04 Aug 2016

Wolf number Catania	///
10cm solar flux	076
AK Chambon La Forêt	026
AK Wingst	021
Estimated Ap	023
Estimated international sunspot number	012 - Based on 30 stations

Noticeable events summary

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

All times in UTC

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