:Product: Solar Region Summary

:Issued: 2026 Jan 31 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 31 Issued at 0030Z on 31 Jan 2026
Report compiled from data received at SWO on 30 Jan

I.  Regions with Sunspots.  Locations Valid at 30/2400Z 

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4349 S14W73   337  0130 Cso  03   04 Beta

4357 S13W47   311  0020 Cao  08   05 Beta

4358 N14E23   241  0010 Axx  03   02 Alpha

4359 N18E01   263  0010 Axx  01   01 Alpha

4360 S15E26   237  0010 Axx  01   01 Alpha

4362 S17E58   206  0020 Hsx  01   01 Alpha

4363 S24E59   205  0030 Cao  07   03 Beta

4365 N28W12   276  0010 Axx  01   01 Alpha

4366 N16E65   199  0060 Dai  05   04 Beta

IA. H-alpha Plages without Spots.  Locations Valid at 30/2400Z Jan

Nmbr  Location  Lo

4350  N18W84   348

4355  S13W35   299

4356  S10W62   326

4361  N19W56   320

4364  S17W33   297

II. Regions Due to Return 31 Jan to 02 Feb

Nmbr Lat    Lo

None

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