Viewing archive of Saturday, 18 June 2022

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2022 Jun 18 1252 UTC

SIDC Forecast

Valid from 1230 UTC, 18 Jun 2022 until 20 Jun 2022
Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

10cm fluxAp
18 Jun 2022149015
19 Jun 2022144008
20 Jun 2022144005

Bulletin

The solar flaring activity is low, with only low C-class flares and B-class flares reported in the last 24 hours. Out of eight numbered active regions, situated on the visible side of the Sun as seen from Earth, the most complex region is NOAA AR 3031 (Catania sunspot groups 44). This active region remains to have beta-gamma configuration of its photospheric magnetic field and it is possible source of flaring activity. In the coming hours we can expect C-class flares while isolated M-class flares are possible but not very probable. The observations do not show the Earth-directed CMEs during last 72 hours.

The NOAA AR 3031 is approaching to the West solar limb and the strong flares and larger eruptions from that active region can be possibly associated with the particle event. The greater than 10 MeV proton flux was at background levels, and the greater than 2 MeV electron flux was under the 1000 pfu threshold, and we expect them to remain on these levels in the coming hours. The 24h electron fluence is at normal level and we expect it will stay so in the coming 24 hours.

The solar wind velocity is still somewhat high with the present value of about 590 km/s. The interplanetary magnetic field magnitude remains to be 6 nT. The geomagnetic conditions are presently unsettled to quiet and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 165, based on 19 stations.

Solar indices for 17 Jun 2022

Wolf number Catania203
10cm solar flux149
AK Chambon La Forêt024
AK Wingst017
Estimated Ap019
Estimated international sunspot number165 - Based on 30 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
Last 30 days128.1 -22.5

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