Viewing archive of Tuesday, 26 November 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Nov 26 1256 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Nov 2013 until 28 Nov 2013
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
26 Nov 2013119006
27 Nov 2013125007
28 Nov 2013125008

Bulletin

The active region which was the most active the past days turned over de west limb and is now out of view. A new active region is ready to rotate over the east limb in the southern hemisphere. It produced C-flare this morning and yesterday. More C-flares are likely. The solar wind speed is slow: around 300 km/s. The total interplanetary magnetic field (IMF) is even below 4nT. Consequently, there are no geomagnetic disturbances. The Kp and local K Dourbes are below 3. There is no indication yet that this situation will change, except for a small northern coronal hole that passed already the central meridian. The fast speed of this coronal hole might arrive late today or tomorrow.

Today's estimated international sunspot number (ISN): 025, based on 08 stations.

Solar indices for 25 Nov 2013

Wolf number Catania065
10cm solar flux119
AK Chambon La Forêt002
AK Wingst000
Estimated Ap001
Estimated international sunspot number030 - Based on 12 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

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

Get instant alerts!

Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.4
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
April 2025147 -7.6
Last 30 days128.8 -21.8

This day in history*

Solar flares
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
11960-272G3
21973-173G3
32001-101G1
41976-101G1
51994-96G3
*since 1994

Social networks