:Product: Solar Region Summary

:Issued: 2025 Dec 16 0030 UTC

# Prepared jointly by the U.S. Dept. of Commerce, NOAA,

# Space Weather Prediction Center and the U.S. Air Force.

#

Joint USAF/NOAA Solar Region Summary

SRS Number 350 Issued at 0030Z on 16 Dec 2025
Report compiled from data received at SWO on 15 Dec

I.  Regions with Sunspots.  Locations Valid at 15/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4305 S25W49   199  0060 Hsx  02   01 Alpha

4307 S15W48   198  0120 Dao  08   08 Beta

4308 N07E17   133  0030 Cso  06   07 Beta

4309 S09W44   194  0010 Bxo  05   03 Beta

4310 N01W25   175  0010 Bxo  03   04 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 15/2400Z Dec

Nmbr  Location  Lo

4303  S25W60   210

4306  S16W84   234

II. Regions Due to Return 16 Dec to 18 Dec

Nmbr Lat    Lo

4290 S10    055

4291 S12    048

4302 S04    024

---

Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.