Viewing archive of Monday, 5 October 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Oct 05 1230 UTC

SIDC Forecast

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

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
05 Oct 2015088019
06 Oct 2015088007
07 Oct 2015088007

Bulletin

Solar activity has been very low without C-class flares in past 24h. The situation is not expected to change significantly in the coming 48h. Geomagnetic conditions have been at active levels overnight due to a mild fast speed stream emanating form the southern extension of a high latitute (northern) coronal hole. The situation is expected to be mostly at unsettled levels in the next 48h.

Today's estimated international sunspot number (ISN): 017, based on 11 stations.

Solar indices for 04 Oct 2015

Wolf number Catania///
10cm solar flux088
AK Chambon La Forêt026
AK Wingst020
Estimated Ap024
Estimated international sunspot number020 - Based on 20 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

<< Go to daily overview page

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

Oulu, Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø, Trondheim
Arkhangelsk, Murmansk, Vorkuta
Kiruna, Luleå

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

Tórshavn
Kuopio
Bergen
Sundsvall, Umeå

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

Helsinki, Tampere, Turku
Petrozavodsk, Syktyvkar
The solar wind speed is currently moderately high (521 km/sec.)
The strength of the interplanetary magnetic field is moderate (10.65nT), the direction is slightly South (-8.06nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-66nT)

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

Donate SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

21:03 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC


13:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 13:07 UTC

alert


12:33 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:21 UTC


00:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:59 UTC

alert


Thursday, 3 April 2025
20:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 20:02 UTC

alert


Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025143 +8.8
Last 30 days130.4 -16.1

This day in history*

Solar flares
12002M8.82
21999M6.76
32001M2.91
42003M2.74
52001M2.31
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Social networks