:Product: Solar Region Summary

:Issued: 2026 Mar 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 90 Issued at 0030Z on 31 Mar 2026
Report compiled from data received at SWO on 30 Mar

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

Nmbr Location  Lo  Area  Z   LL   NN Mag Type

4399 S16W37   244  0050 Cso  05   02 Beta

4401 N25W39   246  0115 Eao  11   13 Beta

4402 N19W32   238  0030 Cai  04   05 Beta

4403 N16E01   206  0070 Hax  03   02 Alpha

4404 N15E21   186  0030 Hsx  05   05 Alpha

4405 S27E32   175  0170 Eao  12   11 Beta-Gamma

4406 N08E25   182  0050 Hsx  02   01 Alpha

4407 N17E31   176  0010 Axx  01   01 Alpha

4408 N08E51   156  0040 Hsx  02   01 Alpha

4409 N02E54   153  0010 Bxo  02   02 Beta

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

Nmbr  Location  Lo

None

II. Regions Due to Return 31 Mar to 02 Apr

Nmbr Lat    Lo

4391 N07    085

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