Viewing archive of Tuesday, 19 January 2021

Solar activity report

Report of Solar-Geophysical Activity 2021 Jan 19 2235 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 19 Issued at 2200Z on 19 Jan 2021

IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1 event observed at 19/1754Z. There are currently 1 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 (20 Jan, 21 Jan, 22 Jan).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 339 km/s at 19/1222Z. Total IMF reached 8 nT at 19/2048Z. The maximum southward component of Bz reached -6 nT at 19/0136Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to active levels on days one and two (20 Jan, 21 Jan) and quiet to unsettled levels on day three (22 Jan).
III. Event Probabilities 20 Jan to 22 Jan
Class M01%01%01%
Class X01%01%01%
Proton01%01%01%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       19 Jan 078
  Predicted   20 Jan-22 Jan 080/085/085
  90 Day Mean        19 Jan 085

V. Geomagnetic A Indices
  Observed Afr/Ap 18 Jan  003/002
  Estimated     Afr/Ap 19 Jan  007/008
  Predicted    Afr/Ap 20 Jan-22 Jan  011/014-011/014-009/010

VI. Geomagnetic Activity Probabilities 20 Jan to 22 Jan
A. Middle Latitudes
Active40%35%30%
Minor storm15%10%05%
Major-severe storm05%01%01%
B. High Latitudes
Active10%15%15%
Minor storm30%30%30%
Major-severe storm55%45%35%

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!

SpaceWeatherLive Pro
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/12/08X2.2
Last M-flare2024/12/25M4.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024115.2 -37.3
Last 30 days120.1 -38.2

This day in history*

Solar flares
12011M5.77
22024M4.9
32024M2.8
41998M1.83
52001M1.76
DstG
11988-85
21998-57
31978-57G2
42014-49
52002-39
*since 1994

Social networks