Viewing archive of Tuesday, 21 November 2023

Solar activity report

Report of Solar-Geophysical Activity 2023 Nov 21 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 325 Issued at 2200Z on 21 Nov 2023

IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C7 event observed at 21/1352Z from Region 3492 (N18E50). There are currently 9 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (22 Nov, 23 Nov, 24 Nov).
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 392 km/s at 21/2044Z. Total IMF reached 13 nT at 21/0647Z. The maximum southward component of Bz reached -12 nT at 21/0648Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 202 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on days one and two (22 Nov, 23 Nov) and quiet to unsettled levels on day three (24 Nov).
III. Event Probabilities 22 Nov to 24 Nov
Class M40%40%40%
Class X05%05%05%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       21 Nov 172
  Predicted   22 Nov-24 Nov 175/177/180
  90 Day Mean        21 Nov 146

V. Geomagnetic A Indices
  Observed Afr/Ap 20 Nov  004/004
  Estimated     Afr/Ap 21 Nov  012/017
  Predicted    Afr/Ap 22 Nov-24 Nov  012/014-011/012-007/008

VI. Geomagnetic Activity Probabilities 22 Nov to 24 Nov
A. Middle Latitudes
Active25%20%15%
Minor storm10%05%05%
Major-severe storm01%01%01%
B. High Latitudes
Active15%15%15%
Minor storm20%15%20%
Major-severe storm30%15%20%

<< 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!

23%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/02/22X6.3
Last M-flare2024/02/28M1.5
Last geomagnetic storm2024/03/03Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2024123 +8.8

This day in history*

Solar flares
12023M5.2
22012M2.91
32023M1.2
42014M1.19
52014M1.09
ApG
1199526G2
2200334G1
3199930G1
4200119G1
5201720
*since 1994

Social networks