Viewing archive of Thursday, 29 August 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Aug 29 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 242 Issued at 2200Z on 29 Aug 2024IA. Analysis of Solar Active Regions and Activity from 28-2100Z to 29-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C7 event observed at
29/0418Z from Region 3806 (S10E56). There are currently 8 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
(30 Aug, 31 Aug, 01 Sep).
IIA. Geophysical Activity Summary 28-2100Z to 29-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 360 km/s at 29/0853Z. Total IMF reached 18
nT at 28/2158Z. The maximum southward component of Bz reached -2 nT at
28/2357Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 131 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (30 Aug, 01
Sep) and quiet levels on day two (31 Aug). Protons have a slight chance
of crossing threshold on days one, two, and three (30 Aug, 31 Aug, 01
Sep).
III. Event Probabilities 30 Aug to 01 Sep
| Class M | 60% | 60% | 60% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 29 Aug 204 Predicted 30 Aug-01 Sep 210/220/215 90 Day Mean 29 Aug 210
V. Geomagnetic A Indices
Observed Afr/Ap 28 Aug 030/026 Estimated Afr/Ap 29 Aug 008/009 Predicted Afr/Ap 30 Aug-01 Sep 008/008-007/008-008/008
VI. Geomagnetic Activity Probabilities 30 Aug to 01 Sep
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 25% | 25% |
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 | 156.1 +4.7 |