:Product: Solar Region Summary

:Issued: 2025 Oct 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 291 Issued at 0030Z on 18 Oct 2025
Report compiled from data received at SWO on 17 Oct

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4246 N24W81   289  0700 Ekc  11   16 Beta-Gamma-Delta

4248 N07W54   262  0380 Eki  11   10 Beta-Gamma

4250 N04W45   253  0010 Axx  01   01 Alpha

4252 S13E01   207  0100 Cso  04   03 Beta

4254 N11E33   175  0060 Hsx  01   01 Alpha

4255 S08E26   182  0010 Bxo  04   02 Beta

4256 S15E52   156  0060 Cso  06   06 Beta

4257 S08E75   133  0060 Hsx  02   01 Alpha

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

Nmbr  Location  Lo

4249  S20W50   258

4251  N19W29   237

4253  S17W80   288

II. Regions Due to Return 18 Oct to 20 Oct

Nmbr Lat    Lo

4236 N10    082

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