Viewing archive of Thursday, 3 October 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Oct 03 2029 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Oct 2013 until 05 Oct 2013
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Proton event in progress (>10 MeV)

10cm fluxAp
03 Oct 2013108008
04 Oct 2013108007
05 Oct 2013108007

Bulletin

A long duration C1.5-flare occurred yesterday evening (Oct 2, 23:29 UT) from behind the Solar North-West limb. The event triggered a CME, which is not Earth directed. We forecast a 50% chance for continued C-class flaring, this time from NOAA AR 1855 and AR 1856. The proton flux levels have dropped below event threshold. Quiet geomagnetic conditions are expected.

Today's estimated international sunspot number (ISN): 047, based on 16 stations.

Solar indices for 02 Oct 2013

Wolf number Catania059
10cm solar flux108
AK Chambon La Forêt045
AK Wingst048
Estimated Ap050
Estimated international sunspot number044 - Based on 17 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
None

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

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 22:46 UTC

Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future

Reykjavik

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Tórshavn
Oulu, Rovaniemi, Kuopio, Sodankylä
Trondheim
Arkhangelsk
Kiruna, Luleå, Sundsvall, Umeå
The direction of the interplanetary magnetic field is slightly South (-6.38nT).

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