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Product: 0529SRS.txt
:Issued: 2011 May 29 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 149 Issued at 0030Z on 29 May 2011
Report compiled from data received at SWO on 28 May
I. Regions with Sunspots. Locations Valid at 28/2400Z
Nmbr Location Lo Area Z LL NN Mag Type
1216 S16W90 193 0060 Hsx 02 01 Alpha
1222 N16W66 169 0000 Axx 01 01 Alpha
1223 S16W12 115 0020 Bxo 06 05 Beta
1224 N20W28 131 0130 Dso 07 14 Beta
1225 N17E43 060 0060 Hsx 02 01 Alpha
1226 S19E65 038 0270 Eai 11 09 Beta-Delta
IA. H-alpha Plages without Spots. Locations Valid at 28/2400Z May
Nmbr Location Lo
1218 S16W70 173
1219 N15W27 130
II. Regions Due to Return 29 May to 31 May
Nmbr Lat Lo
1210 N18 005
1208 N08 344
Region 11226 developed quickly and was unstable and very active all day. While the region had a magnetic delta configuration in the trailing penumbra most of the day, that structure disappeared appeared the M class event. Further M class flaring is likely.
The strongest geomagnetic storm since the day of the great Japanese earthquake and tsunami of March 11, 2011 hit today beginning about 08:00 UT and lasting through about 20:00 UT. This storm which reached a daily AP level of 40 was accompanied by a strong increase in global seismicity. Four moderately strong to strong earthquakes occurred during the 12 hours of this storm including events in Sumatra (M 5.5-6.3); the Kermadec Islands (M 5.5, 5.5-6.0) and the Talaud Islands (M 5.5) and aftershocks in Honshu, Japan (M 5.5, 5.3, 5.1, 4.8). This compares with only two such events of M>=5.5 during the previous week (seven days), that is twice as many events of this magnitude level in half a day as in the previous seven days for an increase in global seismicity during the geomagnetic storm of 1400% over the previous week. The largest of these, the M 5.5-6.3 south of Sumatra occurred at almost exactly local solar midnight a prime time for geomagnetic triggering and was located 15 degrees south of the local geomagnetic equator, precisely where seismicity was expected to be strongest in our global seismic watch issued yesterday. That watch stated: " it may be more likely related to the return of geomagnetic disturbance and solar flare activity which began about the same time as these earthquakes. SWPC expects an active day in the geomagnetic field and a possible M-class solar flare during this time. Both of these can produce effects which are followed shortly by an increase in global seismicity 10-15 degrees from the geomagnetic equator, at high latitudes and in area of high heat flow such as the California-Nevada and Baja regions." (May 28, 2011)
Region 11226 produced a long duration M1.4/1F event peaking at 10:38 UTC. This event was associated with a large CME off the east limb. While both STEREO A and B observed this as a full halo CME, the CME apparently didn't even become a partial halo CME in LASCO images. Region 11227 (formerly S1036) has developed in the leading spot section with two penumbrae forming, the easternmost one has a magnetic delta structure. Solar wind speed became unusually high today, probably due to the arrival of the stream associated with CH451. SOHO/MDI recorded a peak speed of 953 km/sec. Additionally the IMF swung significantly southwards again causing minor to major geomagnetic storming.
Originally posted by Phage
reply to post by intergalactic fire
The current solar region summary shows 1226 as the only region with much of anything going on. With a Beta-Delta configuration, is not particularly large, it has 9 sunspots within it. That doesn't really indicate much strong activity to be expected but things do change.
Product: 0529SRS.txt
:Issued: 2011 May 29 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 149 Issued at 0030Z on 29 May 2011
Report compiled from data received at SWO on 28 May
I. Regions with Sunspots. Locations Valid at 28/2400Z
Nmbr Location Lo Area Z LL NN Mag Type
1216 S16W90 193 0060 Hsx 02 01 Alpha
1222 N16W66 169 0000 Axx 01 01 Alpha
1223 S16W12 115 0020 Bxo 06 05 Beta
1224 N20W28 131 0130 Dso 07 14 Beta
1225 N17E43 060 0060 Hsx 02 01 Alpha
1226 S19E65 038 0270 Eai 11 09 Beta-Delta
IA. H-alpha Plages without Spots. Locations Valid at 28/2400Z May
Nmbr Location Lo
1218 S16W70 173
1219 N15W27 130
II. Regions Due to Return 29 May to 31 May
Nmbr Lat Lo
1210 N18 005
1208 N08 344
Things do change yes
11226 2011.05.27 12 29 S21E54 0360 EKI EKI beta-gamma-delta
www.solarmonitor.org...
www.swpc.noaa.gov...
Can you explain me a bit about these polarity changes?
Thanks
beautiful isnt it
Things do change yes
11226 2011.05.27 12 29 S21E54 0360 EKI EKI beta-gamma-delta
www.solarmonitor.org...
www.swpc.noaa.gov...
Can you explain me a bit about these polarity changes?
Thanks
Product: Solar Region Summary
:Issued: 2011 Jun 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 152 Issued at 0030Z on 01 Jun 2011
Report compiled from data received at SWO on 31 May
I. Regions with Sunspots. Locations Valid at 31/2400Z
Nmbr Location Lo Area Z LL NN Mag Type
1222 N17W98 160 0030 Axx 01 01 Alpha
1224 N21W68 133 0050 Csi 07 08 Beta
1225 N16E04 060 0030 Hsx 02 01 Alpha
1226 S22E27 037 0330 Dkc 09 18 Beta
1227 S18E40 024 0190 Dsi 08 07 Beta-Gamma
1228 N17E50 014 0100 Cso 08 08 Beta
1229 N16E24 040 0040 Cso 06 06 Beta
1230 N19E58 006 0030 Bxo 02 03 Beta
IA. H-alpha Plages without Spots. Locations Valid at 31/2400Z May
Nmbr Location Lo
1219 N15W69 133
1223 S17W50 114
II. Regions Due to Return 01 Jun to 03 Jun
Nmbr Lat Lo
None
Data for all numbered solar regions according to the Solar Region Summary provided by NOAA/SWPC.