:Product: Solar Region Summary

:Issued: 2026 May 20 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 140 Issued at 0030Z on 20 May 2026
Report compiled from data received at SWO on 19 May

I.  Regions with Sunspots.  Locations Valid at 19/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4436 N18W64   330  0085 Cso  05   06 Beta

4439 N06E30   236  0050 Cao  09   05 Beta

4440 N17E29   237  0020 Hrx  02   02 Alpha

4441 N07W15   281  0085 Dao  10   08 Beta

4443 S16E37   229  0005 Axx  01   01 Alpha

IA. H-alpha Plages without Spots.  Locations Valid at 19/2400Z May

Nmbr  Location  Lo

4442  S15E14   252

II. Regions Due to Return 20 May to 22 May

Nmbr Lat    Lo

None

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