Viewing archive of Wednesday, 29 November 2023

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2023 Nov 29 1231 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

10cm fluxAp
29 Nov 2023185005
30 Nov 2023182010
01 Dec 2023180027

Solar Active Regions and flaring

Solar flaring activity was high during the past 24 hours with an M9 flare emitted from NOAA Active Region (AR) 3500 (magnetic configuration Beta-Gamma, Catania group 65) yesterday at 19:50 UTC. NOAA AR 3499 (magnetic type Beta, Catania group 53) produced a C8 flare yesterday at 23:31 UTC, while NOAA AR 3502 (magnetic type Beta, Catania group 64) emitted a C6 flare today at 08:03 UTC. More M-class flaring activity is likely in the next 24 hours, particularly from NOAA AR 3500. There is also a small chance of an isolated X-class flare from the same AR.

Coronal mass ejections

A full halo Corona Mass Ejection (CME) was automatically detected by CACTus as launched yesterday at 20:24 UTC. It is associated with an M9 flare and is expected to become geo-effective during the second half of 1 Dec.

Solar wind

The Solar Wind (SW) conditions remained stable during the last 24 hours. The SW speed varied from 420 to 500 km/s, while the total interplanetary magnetic field (Bt) was between 3 and 5 nT. The North-South magnetic component (Bz) ranged between -4 and 4 nT, while the interplanetary magnetic field phi angle was mostly directed away from the Sun in the past 24 hours. The SW conditions are expected to remain in the slow SW regime for approximately the next 12 hours. One or more Coronal Mass Ejections (CME) are likely to arrive as one disturbance in the second half of tomorrow.

Geomagnetism

Geomagnetic conditions were quiet globally (NOAA Kp 1 to 2) and quiet to unsettled locally (K BEL 1 to 3) during the last 24 hours. They are expected to increase to active conditions in the next 24 hours as a result of a possible arrival of one or more Coronal Mass Ejections (CME).

Proton flux levels

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours.

Electron fluxes at geostationary orbit

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was at nominal levels during the last 24 hours and is expected to remain below this threshold during the next 24 hours. The 24h electron fluence was at very low levels during the past 24 hours and is expected to remain at these levels for the following 24 hours.

Today's estimated international sunspot number (ISN): 167, based on 11 stations.

Solar indices for 28 Nov 2023

Wolf number Catania///
10cm solar flux182
AK Chambon La Forêt011
AK Wingst007
Estimated Ap007
Estimated international sunspot number148 - Based on 27 stations

Noticeable events summary

DayBeginMaxEndLocStrengthOP10cmCatania/NOAARadio burst types
28190719321935----M3.472065/3500II/2III/2
28193519502009----M9.865/3500II/1

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-flare2025/04/01M5.6
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
Last 30 days128.5 -22.7

This day in history*

Solar flares
12001M7.89
22017M6.34
32001M5.75
42025M5.6
52024M3.9
DstG
11960-327G4
22001-228G2
31976-218G4
41973-211G4
51989-93G2
*since 1994

Social networks