:Product: Solar Region Summary

:Issued: 2026 May 19 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 139 Issued at 0030Z on 19 May 2026
Report compiled from data received at SWO on 18 May

I.  Regions with Sunspots.  Locations Valid at 18/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4436 N19W52   331  0070 Hsx  03   03 Alpha

4439 N06E42   237  0050 Dao  08   02 Beta

4440 N17E42   237  0030 Hrx  02   02 Alpha

4441 N08W01   280  0060 Dao  06   06 Beta

4442 S15E28   251  0010 Bxo  02   02 Beta

4443 S16E47   232  0010 Bxo  03   02 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 18/2400Z May

Nmbr  Location  Lo

None

II. Regions Due to Return 19 May to 21 May

Nmbr Lat    Lo

4425 N06    184

4428 S23    183

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