Viewing archive of Monday, 15 January 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Jan 15 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 15 Issued at 2200Z on 15 Jan 2024IA. Analysis of Solar Active Regions and Activity from 14-2100Z to 15-2100Z 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
15/1405Z. There are currently 10 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 (16 Jan, 17 Jan,
18 Jan).
IIA. Geophysical Activity Summary 14-2100Z to 15-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached an estimated peak of 372 km/s at 15/1306Z. Wind speeds were
suspect due to unreliable DSCOVR data. Total IMF reached 9 nT at
15/1845Z. The maximum southward component of Bz reached -4 nT at
15/1940Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 117 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (16 Jan,
17 Jan, 18 Jan).
III. Event Probabilities 16 Jan to 18 Jan
| Class M | 30% | 30% | 30% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 15 Jan 183 Predicted 16 Jan-18 Jan 185/185/175 90 Day Mean 15 Jan 151
V. Geomagnetic A Indices
Observed Afr/Ap 14 Jan 005/006 Estimated Afr/Ap 15 Jan 005/005 Predicted Afr/Ap 16 Jan-18 Jan 008/008-008/010-008/008
VI. Geomagnetic Activity Probabilities 16 Jan to 18 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 25% | 30% | 25% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |