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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Mar 21 1258 UTC

SIDC Forecast

Valid from 1230 UTC, 21 Mar 2014 until 23 Mar 2014
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
21 Mar 2014145012
22 Mar 2014145007
23 Mar 2014145007

Bulletin

There is ongoing C-flaring activity at the moment. We expect this trend to be continued. NOAA AR 2014 has to highest probability to cause C-flares. The chance for M-flares is less than 50%. The planetary K index is 3 indicating unsettled conditions. This is due to the negative value of the z-component of the interplanetary magnetic field. There is a coronal hole at the equator which might become geoeffective. The impact is expected to be limited however.

Today's estimated international sunspot number (ISN): 088, based on 10 stations.

Solar indices for 20 Mar 2014

Wolf number Catania165
10cm solar flux151
AK Chambon La Forêt013
AK Wingst007
Estimated Ap006
Estimated international sunspot number093 - Based on 26 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

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

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Notizie sul meteo spaziale

Ultimo brillamento X2026/02/04X4.21
Ultimo brillamento M2026/03/18M2.7
Ultima tempesta geomagnetica2026/03/21Kp7 (G3)
Giorni senza macchie
Ultimi 365 giorni3 giorni
20263 giorni (4%)
Ultimo giorno senza macchie2026/02/24
Media mensile Numero di Macchie Solari
febbraio 202678.2 -34.3
marzo 202676.1 -2.1
Ultimi 30 giorni65.3 -33.8

Questo giorno nella storia*

Brillamenti solari
12000X1.56
22024M4.3
32000M2.86
42002M2.37
52001M2.28
DstG
11990-104G1
21989-96G2
31958-85G2
41979-81G3
52025-61G2
*dal 1994

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