:Product: Solar Region Summary
:Issued: 2026 Apr 01 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 91 Issued at 0030Z on 01 Apr 2026
Report compiled from data received at SWO on 31 Mar
I. Regions with Sunspots. Locations Valid at 31/2400Z
Nmbr Location Lo Area Z LL NN Mag Type
4399 S16W52 245 0050 Hsx 02 01 Alpha
4401 N25W57 251 0110 Hax 04 05 Alpha
4402 N19W41 235 0025 Hrx 02 04 Alpha
4403 N15W12 206 0070 Hsx 04 02 Alpha
4404 N15E06 188 0050 Csi 03 03 Beta
4405 S27E18 175 0200 Esi 11 11 Beta-Gamma
4406 N08E12 182 0050 Hsx 02 01 Alpha
4407 N17E17 176 0010 Axx 01 01 Alpha
4408 N08E38 156 0040 Hsx 02 01 Alpha
4409 N02E39 154 0020 Dro 04 04 Beta
IA. H-alpha Plages without Spots. Locations Valid at 31/2400Z Mar
Nmbr Location Lo
None
II. Regions Due to Return 01 Apr to 03 Apr
Nmbr Lat Lo
4391 N07 085
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