:Product: Solar Region Summary

:Issued: 2025 May 18 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 138 Issued at 0030Z on 18 May 2025
Report compiled from data received at SWO on 17 May

I.  Regions with Sunspots.  Locations Valid at 17/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4087 N16E12   058  0220 Dso  08   07 Beta-Gamma-Delta

4089 N18E44   026  0030 Dro  05   06 Beta

4090 S12E51   019  0040 Cso  04   02 Beta

4091 S13E37   032  0020 Cro  03   03 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 17/2400Z May

Nmbr  Location  Lo

4084  S20W63   133

4085  N03W75   145

4088  N09W85   154

II. Regions Due to Return 18 May to 20 May

Nmbr Lat    Lo

4076 N07    324

---

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.