Viewing archive of Thursday, 8 December 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Dec 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 342 Issued at 2200Z on 08 Dec 2022IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z
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
08/0603Z from Region 3157 (N16E07). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (09
Dec, 10 Dec, 11 Dec).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 610 km/s at 08/1636Z. Total IMF reached 12
nT at 08/0944Z. The maximum southward component of Bz reached -7 nT at
07/2213Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 139 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and three (09 Dec, 11 Dec) and quiet
to unsettled levels on day two (10 Dec).
III. Event Probabilities 09 Dec to 11 Dec
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 Dec 143 Predicted 09 Dec-11 Dec 140/140/140 90 Day Mean 08 Dec 132
V. Geomagnetic A Indices
Observed Afr/Ap 07 Dec 009/017 Estimated Afr/Ap 08 Dec 010/012 Predicted Afr/Ap 09 Dec-11 Dec 007/008-008/008-006/005
VI. Geomagnetic Activity Probabilities 09 Dec to 11 Dec
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 20% |
| Major-severe storm | 30% | 20% | 20% |
All times in UTC
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR4048 105Unexplained proton activity 54AR4046 157Temporary Topic - Ongoing Solar Proton Events 17jsoc 108
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!
Latest alerts
13:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 13:56 UTC
Wednesday, 2 April 2025
04:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 04:56 UTC
01:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 01:32 UTC
Tuesday, 1 April 2025
22:51 UTC - Solar flare
Moderate M2.5 flare
22:30 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.45)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 152.5 -2.1 |
| Last 30 days | 130.7 -17.9 |