:Product: Solar Region Summary

:Issued: 2025 Aug 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 230 Issued at 0030Z on 18 Aug 2025
Report compiled from data received at SWO on 17 Aug

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4171 N19W78   010  0010 Hrx  01   01 Alpha

4180 S03W11   304  0040 Cai  04   09 Beta

4182 N08E16   277  0010 Hsx  01   01 Alpha

4186 N07W77   010  0040 Dso  04   02 Beta

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

Nmbr  Location  Lo

4175  N12W62   355

4176  N25W81   014

4177  N05W60   353

4179  S12W24   317

4181  S11W82   015

4184  S19W78   011

4185  N17W77   010

II. Regions Due to Return 18 Aug to 20 Aug

Nmbr Lat    Lo

4167 N11    185

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