:Product: Solar Region Summary

:Issued: 2025 Aug 21 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 233 Issued at 0030Z on 21 Aug 2025
Report compiled from data received at SWO on 20 Aug

I.  Regions with Sunspots.  Locations Valid at 20/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4187 S18W08   261  0040 Dao  04   04 Beta

4188 S09E43   210  0040 Hsx  02   01 Alpha

4189 N08E32   221  0010 Bxo  03   02 Beta

4190 N18E56   197  0010 Axx  01   01 Alpha

4191 N10E79   174  0080 Hsx  10   01 Alpha

IA. H-alpha Plages without Spots.  Locations Valid at 20/2400Z Aug

Nmbr  Location  Lo

4179  S12W67   320

4180  S02W54   307

4182  N10W27   280

II. Regions Due to Return 21 Aug to 23 Aug

Nmbr Lat    Lo

4161 S14    154

4170 S17    149

4173 S18    124

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