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Whereas AR2711 and AR2712 are Betas, AR2710 has now decayed to an alpha plage per today's report from NOAA.
:Issued: 2018 May 26 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 146 Issued at 0030Z on 26 May 2018
Report compiled from data received at SWO on 25 May
I. Regions with Sunspots. Locations Valid at 25/2400Z
Nmbr Location Lo Area Z LL NN Mag Type 2711 N06W55 289 0040 Cso 07 05 Beta
2712 N14E56 178 0040 Cao 09 07 Beta
IA. H-alpha Plages without Spots. Locations Valid at 25/2400Z May
Nmbr Location Lo 2710 N17E11 223
II. Regions Due to Return 26 May to 28 May
Nmbr Lat Lo
None
These two active regions have been relatively quiet and seem to be decaying.
Soon AR2711 will be leaving for its transit around the sun. Most likely it will not return.
:Issued: 2018 May 27 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 147 Issued at 0030Z on 27 May 2018
Report compiled from data received at SWO on 26 May
I. Regions with Sunspots. Locations Valid at 26/2400Z
Nmbr Location Lo Area Z LL NN Mag Type 2711 N07W70 291 0030 Cro 04 03 Beta
2712 N15E43 178 0040 Cao 08 03 Beta
IA. H-alpha Plages without Spots. Locations Valid at 26/2400Z May
Nmbr Location Lo
2710 N17W03 224
II. Regions Due to Return 27 May to 29 May
Nmbr Lat Lo
None
EISN = Estimated International Sunspot Number
std = standard deviation
st = station reports accepted
str = total stations reporting
difference between str and st = outliers not accepted
Notice the huge standard deviations (over 3.0) for May 23, 24, 25, 26, and 27.
:Issued: 2018 May 28 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 148 Issued at 0030Z on 28 May 2018
Report compiled from data received at SWO on 27 May
I. Regions with Sunspots. Locations Valid at 27/2400Z
Nmbr Location Lo Area Z LL NN Mag Type 2711 N05W84 291 0010 Bxo 03 02 Beta
2712 N15E28 179 0040 Cro 09 05 Beta
IA. H-alpha Plages without Spots. Locations Valid at 27/2400Z May
Nmbr Location Lo
2710 N17W17 224
II. Regions Due to Return 28 May to 30 May
Nmbr Lat Lo
None
Sunspot AR2712 is quiet, but it might not remain so. The sunspot has quadrupled in size in the past 48 hours. Instabilities in its fast-changing magnetic field could lead to solar flares.
As AR2712 shows increases in its magnetic field and approaches the center of the sun, any significant flares most likely will be geo-centered. Thus, we could be in for another September 2017 surprise where we experienced X-flares.