Viewing archive of Wednesday, 16 April 2025
Geophysical report
Solar and Geophysical Activity Summary 2025 Apr 16 0245 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar and Geophysical Activity Summary
SGAS Number 106 Issued at 0245Z on 16 Apr 2025 This report is compiled from data received at SWO on 15 AprA. Energetic Events
Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 1004 1020 1028 M1.5 1757 1813 1827 4055 M1.3
B. Proton Events
None
C. Geomagnetic Activity Summary
The geopmagnetic field reached G2
(Moderate) levels
D. Stratwarm
Not available
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 153 SSN 058 Afr/Ap 013/034 X-ray Background C1.4 Daily Proton Fluence (flux accumulation over 24 hrs) GT 1 MeV 6.7e+06 GT 10 MeV 1.5e+04 p/(cm2-ster-day) (GOES-18 satellite synchronous orbit W137 degrees) Daily Electron Fluence GT 2 MeV 5.90e+07 e/(cm2-ster-day) (GOES-19 satellite synchronous orbit W75 degrees) 3 Hour K-indices Boulder 3 2 2 1 3 4 5 5 Planetary 3 2 2 1 3 4 5 5
F. Comments
None
All times in UTC
Latest news
Wednesday, 1 July 2026
X1.1 solar flare, G2 watch
Thursday, 4 June 2026
G3 geomagnetic storm watch for 4 and 5 June
Wednesday, 13 May 2026
Coronal hole faces Earth
Latest forum messages
Incoming & Unnumbered Active Regions 557Current Farside Activity 717Filaments and prominences 587GOES-19 Safe Hold 6Space Weather Memes 858
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/07/04 | X1.3 |
| Last M-flare | 2026/07/12 | M1.19 |
| Last geomagnetic storm | 2026/07/04 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| June 2026 | 94.4 -7.1 |
| July 2026 | 74.8 -19.6 |
| Last 30 days | 87 -20.2 |
This day in history*
Aurora on this day in history
No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation