Solar activity report

Viewing archive of Thursday, 20 January 2022

Report of Solar-Geophysical Activity 2022 Jan 20 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 20 Issued at 2200Z on 20 Jan 2022

IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z

Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a M5 event observed at 20/0601Z from Region 2929 (N08W88). There are currently 5 numbered sunspot regions on the disk.

IB. Solar Activity Forecast

Solar activity is expected to be very low with a chance for a C-class flares and a slight chance for an M-class flare on day one (21 Jan) and expected to be very low with a slight chance for a C-class flare on days two and three (22 Jan, 23 Jan).

IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 568 km/s at 19/2117Z. Total IMF reached 5 nT at 20/0534Z. The maximum southward component of Bz reached -1 nT at 20/0839Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 22 pfu at 20/1015Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2656 pfu.

IIB. Geophysical Activity Forecast

The geomagnetic field is expected to be at quiet to unsettled levels on day one (21 Jan) and quiet to active levels on days two and three (22 Jan, 23 Jan). Protons greater than 10 Mev have a slight chance of crossing threshold on day one (21 Jan).

III. Event Probabilities 21 Jan to 23 Jan

Class M	10%	01%	01%
Class X	01%	01%	01%
Proton	20%	01%	01%
PCAF	green

IV. Penticton 10.7 cm Flux

  Observed       20 Jan 099
  Predicted   21 Jan-23 Jan 095/093/091
  90 Day Mean        20 Jan 097

V. Geomagnetic A Indices

  Observed Afr/Ap 19 Jan  015/019
  Estimated     Afr/Ap 20 Jan  006/008
  Predicted    Afr/Ap 21 Jan-23 Jan  008/008-009/010-010/012

VI. Geomagnetic Activity Probabilities 21 Jan to 23 Jan

A. Middle Latitudes
Active	20%	20%	35%
Minor storm	05%	05%	15%
Major-severe storm	01%	01%	05%

B. High Latitudes
Active	15%	15%	10%
Minor storm	25%	25%	25%
Major-severe storm	25%	25%	50%

All times in UTC

Previous rotation Previous day Calendar

Next day Next rotation

<< Go to daily overview page

The solar wind speed is currently moderately high (504.1 km/sec.)
The density of the solar wind is moderate (26.27 p/cm³)

The strength of the interplanetary magnetic field is moderate (11nT), the direction is North (5.34nT).

The Disturbance Storm Time index predicts moderate storm conditions right now (-66nT)

Latest news

Tuesday, 15 April 2025

CME arrival, G3 storm watch

Friday, 28 March 2025

X1.1 solar flare

Monday, 24 March 2025

Coronal hole faces Earth

More news

Latest forum messages

2025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 464 Incoming & Unnumbered Active Regions 1742 Filaments and prominences 66 Power Grid Reclosers 1 AR4062 36

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