Viewing archive of Saturday, 6 April 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Apr 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 97 Issued at 2200Z on 06 Apr 2024IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z 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
06/0121Z. 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 on days one, two, and three (07 Apr,
08 Apr, 09 Apr).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 503 km/s at 06/1243Z. Total IMF reached 9
nT at 06/0216Z. The maximum southward component of Bz reached -7 nT at
06/0216Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 317 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (07 Apr, 08 Apr) and quiet to
active levels on day three (09 Apr).
III. Event Probabilities 07 Apr to 09 Apr
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Apr 123 Predicted 07 Apr-09 Apr 125/125/128 90 Day Mean 06 Apr 162
V. Geomagnetic A Indices
Observed Afr/Ap 05 Apr 010/011 Estimated Afr/Ap 06 Apr 009/010 Predicted Afr/Ap 07 Apr-09 Apr 006/005-006/005-014/015
VI. Geomagnetic Activity Probabilities 07 Apr to 09 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 30% |
| Minor storm | 01% | 01% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 30% |
| Major-severe storm | 15% | 15% | 40% |
All times in UTC
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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 |