Solar region summary
Below you'll find a daily report brought to you by the NOAA about the solar regions during the past day and the prediction for the coming days. This page is daily updated around midnight.
Solar region summary 2025 Apr 15 0030 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Solar Region Summary
SRS Number 105 Issued at 0030Z on 15 Apr 2025 This report is compiled from data received at SWO on 14 AprI. Regions with Sunspots
| Nmbr | Location | Lo | Area | Z | LL | NN | Mag Type |
|---|---|---|---|---|---|---|---|
| 4055 | N07W92 | 237 | 0820 | Ekc | 13 | 14 | Beta-Gamma-Delta |
| 4056 | S09W36 | 181 | 0060 | Hsx | 02 | 01 | Alpha |
| 4058 | N16W90 | 236 | 0040 | Cao | 03 | 07 | Beta |
| 4060 | N08E07 | 138 | 0140 | Dai | 08 | 12 | Beta-Gamma |
| 4061 | N18W29 | 175 | 0010 | Bxo | 03 | 02 | Beta |
IA. H-alpha plages without spots
| Nmbr | Location | Lo |
|---|---|---|
| 4057 | N09W40 | 186 |
| 4059 | N13W15 | 161 |
II. Regions Due to Return 15 Apr to 17 Apr
| Nmbr | Lat | Lo |
|---|---|---|
| 4047 | S15 | 038 |
| 4043 | N14 | 018 |
Latest news
CME arrival, G3 storm watch
X1.1 solar flare
Coronal hole faces Earth
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Latest alerts
20:00 UTC - Geomagnetic activity
Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 19:44 UTC
19:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 18:59 UTC
18:33 UTC - Solar flare
Moderate M1.31 flare from sunspot region 4055
CME arrival, G3 storm watch
A coronal mass ejection has arrived at our planet. This is the first of possibly two coronal mass ejections that were expected to arrive from filament eruptions on April 12 and 13. The minor G1 geomagnetic storm threshold has already been reached and the NOAA SWPC has a strong G3 geomagnetic storm watch in place for tomorrow, 16 April. Keep an eye on the data here on this website in the hours ahead. There is more action to come!
18:12 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.15)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/14 | M4.2 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 128.8 -5.4 |
| Last 30 days | 129.1 -15.1 |