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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Jul 07 1231 UTC

SIDC Forecast

Sluneční erupce

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Minor storm expected (A>=30 or K=5)

Sluneční protony

Quiet

	10cm flux	Ap
07 Jul 2019	068	007
08 Jul 2019	068	025
09 Jul 2019	068	020

Bulletin

New alpha region NOAA 2744 produced a few low B flares in the past 24 hours. The brightest flare was a B3.6 flare peaking at 21:21 UT on July 6. The chance for a C flare in the next 24 hours is estimated at 5%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by ACE varied between about 330 and 365 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed predominantly towards the Sun, and its magnitude varied between about 0 and 5 nT. Bz was never below -5 nT. Solar wind conditions are expected to stay at nominal levels on July 7, and to rise on July 8 due to the expected arrival of the high speed stream from a recurrent, positive polarity coronal hole that crossed the central meridian on July 5.

Quiet to unsettled geomagnetic conditions (K Dourbes between 0 and 3; NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled levels (K Dourbes < 4) are expected on July 7. Active to minor storm intervals (K Dourbes = 4 to 5) are possible on July 8 and 9, with the expected arrival of the high speed stream from a recurrent, positive polarity coronal hole that crossed the central meridian on July 5.

Today's estimated international sunspot number (ISN): 011, based on 13 stations.

Solar indices for 06 Jul 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	006
AK Wingst	002
Estimated Ap	002
Estimated international sunspot number	000 - Based on 28 stations

Noticeable events summary

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

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