Viewing archive of Thursday, 12 January 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Jan 12 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 12 Issued at 2200Z on 12 Jan 2023IA. Analysis of Solar Active Regions and Activity from 11-2100Z to 12-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
12/1128Z from Region 3181 (S19W74). There are currently 6 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(13 Jan, 14 Jan, 15 Jan).
IIA. Geophysical Activity Summary 11-2100Z to 12-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 464 km/s at 12/1349Z. Total IMF reached 8
nT at 12/0229Z. The maximum southward component of Bz reached -8 nT at
12/1313Z. 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 levels on day one (13 Jan) and quiet to unsettled levels
on days two and three (14 Jan, 15 Jan). Protons have a slight chance of
crossing threshold on day one (13 Jan) and have a slight chance of
crossing threshold on days two and three (14 Jan, 15 Jan).
III. Event Probabilities 13 Jan to 15 Jan
| Class M | 60% | 55% | 55% |
| Class X | 20% | 20% | 15% |
| Proton | 20% | 15% | 15% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 12 Jan 212 Predicted 13 Jan-15 Jan 210/210/208 90 Day Mean 12 Jan 138
V. Geomagnetic A Indices
Observed Afr/Ap 11 Jan 008/006 Estimated Afr/Ap 12 Jan 008/008 Predicted Afr/Ap 13 Jan-15 Jan 006/005-008/010-008/008
VI. Geomagnetic Activity Probabilities 13 Jan to 15 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 25% |
| Minor storm | 01% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 30% | 30% |
| Major-severe storm | 20% | 35% | 35% |
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
AR 13901 88Incoming & Unnumbered Active Regions 1245Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 1Space Weather Memes 580
More topicsSupport 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!
Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/20 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 142.7 -23.8 |
| Last 30 days | 155.2 +4.4 |