Viewing archive of Tuesday, 5 May 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 May 05 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 05 May 2015 until 07 May 2015
Solar flares

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

Geomagnetism

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

Solar protons

Quiet

10cm fluxAp
05 May 2015125007
06 May 2015130014
07 May 2015135008

Bulletin

Solar activity is increasing with a recurrent active region rotating over the west limb, NOAA AR 2339 (old NOAA AR 2322). It produced an M1.9 flare with peak at 09:47 UT. Furthermore, NOAA AR 2335 has doubled in size from yesterday and reached a beta-gamma magnetic field configuration. More M-class flares are expected. Geomagnetic conditions are quiet and expected to remain so today. Tomorrow, the CME from May 2 can arrive to the Earth and produce active to minor storm conditions.

Today's estimated international sunspot number (ISN): 074, based on 19 stations.

Solar indices for 04 May 2015

Wolf number Catania100
10cm solar flux125
AK Chambon La Forêt010
AK Wingst008
Estimated Ap008
Estimated international sunspot number075 - Based on 19 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
05094209470951----M1.9--/2339III/2

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

All times in UTC

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