Viewing archive of Wednesday, 25 October 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Oct 25 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 298 Issued at 2200Z on 25 Oct 2023

IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 25/0045Z. There are currently 2 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (26 Oct, 27 Oct, 28 Oct).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 345 km/s at 25/0042Z. Total IMF reached 6 nT at 25/2053Z. The maximum southward component of Bz reached -4 nT at 25/1502Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 291 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet levels on days one and three (26 Oct, 28 Oct) and quiet to unsettled levels on day two (27 Oct).
III. Event Probabilities 26 Oct to 28 Oct
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       25 Oct 126
  Predicted   26 Oct-28 Oct 125/125/125
  90 Day Mean        25 Oct 152

V. Geomagnetic A Indices
  Observed Afr/Ap 24 Oct  002/003
  Estimated     Afr/Ap 25 Oct  003/004
  Predicted    Afr/Ap 26 Oct-28 Oct  005/005-008/008-006/005

VI. Geomagnetic Activity Probabilities 26 Oct to 28 Oct
A. Middle Latitudes
Active10%15%10%
Minor storm01%05%01%
Major-severe storm01%01%01%
B. High Latitudes
Active20%15%20%
Minor storm20%25%20%
Major-severe storm10%25%10%

<< 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!

13%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/02/16X2.5
Last M-flare2024/02/16M3.0
Last geomagnetic storm2023/12/18Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2024123 +8.8

This day in history*

Solar flares
12002M5.62
22023M5.0
32023M4.7
42000M2.6
52002M2
ApG
1199495G4
2200021G1
3202120
4200619
5202314
*since 1994

Social networks