Viewing archive of Saturday, 3 February 2018
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 34 Issued at 2200Z on 03 Feb 2018IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 04 Feb to 06 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Feb 069 Predicted 04 Feb-06 Feb 070/070/070 90 Day Mean 03 Feb 071
V. Geomagnetic A Indices
Observed Afr/Ap 02 Feb 003/003 Estimated Afr/Ap 03 Feb 003/003 Predicted Afr/Ap 04 Feb-06 Feb 008/010-008/008-006/005
VI. Geomagnetic Activity Probabilities 04 Feb to 06 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 05% |
| Minor storm | 10% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 30% | 25% | 15% |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Iqaluit, NUNuuk
Reykjavik
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
TórshavnTrondheim
Sundsvall
Current data suggests there is a slight possibility for aurora to appear at the following middle latitude regions in the near future
Thunder Bay, ONLatest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
Support 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
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
13:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 13:07 UTC
12:33 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:21 UTC
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 | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 143 +8.8 |
| Last 30 days | 129.8 -16.3 |