Viewing archive of Thursday, 3 October 2024
Solar activity report
Report of Solar-Geophysical Activity 2024 Oct 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 277 Issued at 2200Z on 03 Oct 2024IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z
Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a X9 event observed at
03/1218Z from Region 3842 (S15W08). There are currently 10 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a chance for X-class flares on days one, two, and three (04 Oct, 05
Oct, 06 Oct).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 407 km/s at 03/1914Z. Total IMF reached 8
nT at 03/1729Z. The maximum southward component of Bz reached -6 nT at
03/1124Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 268 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to severe storm levels on day one (04 Oct), minor
storm to severe storm levels on day two (05 Oct) and active to severe
storm levels on day three (06 Oct). Protons have a chance of crossing
threshold on days one, two, and three (04 Oct, 05 Oct, 06 Oct).
III. Event Probabilities 04 Oct to 06 Oct
| Class M | 75% | 75% | 75% |
| Class X | 35% | 35% | 35% |
| Proton | 35% | 35% | 35% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Oct 312 Predicted 04 Oct-06 Oct 310/310/310 90 Day Mean 03 Oct 219
V. Geomagnetic A Indices
Observed Afr/Ap 02 Oct 006/006 Estimated Afr/Ap 03 Oct 011/017 Predicted Afr/Ap 04 Oct-06 Oct 033/054-048/094-044/072
VI. Geomagnetic Activity Probabilities 04 Oct to 06 Oct
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 20% |
| Minor storm | 35% | 30% | 35% |
| Major-severe storm | 35% | 40% | 35% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 75% | 80% | 75% |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Iqaluit, NUNuuk
Reykjavik
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
Unspecified geomagnetic activity 2216Incoming & Unnumbered Active Regions 1660AR4048 114New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 36Filaments and prominences 750
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
04:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 04:05 UTC
03:15 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 02:59 UTC
01:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 00:51 UTC
Friday, 4 April 2025
23:30 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:17 UTC
21:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/04/04 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 143 +8.8 |
| Last 30 days | 129.8 -16.3 |