We noticed a filament eruption today near Sunspot 1691 - 1690 located in the northern-center area of the solar disk.
This filament eruption resulted in a 2 hour long LDE C-Class solar flare that occurred starting at 10:17 UTC and ended at 12:25 UTC We will update
this report if we see a Coronal Mass Ejection (CME) associated with this event.
UPDATE: There was a CME (Coronal Mass Ejection) produced in association with todays event as we can see on STEREO B (here to the left). At this time the CME appears to have a mostly northward trajectory. We are still waiting on STEREO A to update so we can better determine if this CME will be geoeffective.
*Continue to check back often for further updates and alerts as today's
solar events unfold.
Maybe you remember the very large solar flare and coronal mass ejection we reported three days ago on March 5. It seems that the Coronal Mass Ejection reached the
spacecraft STEREO Behind and the animated image here shows that the Bz
component of solar wind remained positive. The time and date can be
found in the lower left corner.
That could be one reason why we actually have a time gap on Stereo.
The solar wind continues to increase this morning and is now over 500 km/s. The Bz component of the Interplanetary Magnetic Field (IMF) was tipped sharply south for several hours and a G1 Geomagnetic Storm is currently underway. We expect aurora at very high latitudes!
The STEREO Ahead Spacecraft captured a Full halo Coronal Mass Ejection (CME) this morning. The source of this event was a filament eruption inbounded with a solar flare near old region 1678 off the farside of the Sun. The Coronal Mass Ejection (CME) will not be geoeffective (farsided event). Watch the Video down below!
We have two new regions. The first is region 1675, which
is a BXO Beta type group at 10 millionths in size. On my thoughts, this
region is a larger type group and also in size larger than reported.
There may even be a Beta-Gamma developing in the central portion of the
group. This region emerged onto the solar disc. The second is region
1676, which is a single spot HAX Alpha type group at 30 millionths in
size. This region rotated over the south-east limb. We also have a
couple of other sunspot region which are visible but are not numbered yet.
Once again Sunspot Region 1515 has produced a significant event, releasing a M6.1 S/F lasting in duration from 11:39 :00 untill 11:49:00 ,and peaking at 11:44:00 UTC today July 5, 2012. Another M1.2 peaking at 13:17 swiftly followed with a large CME eruption off of the sw limb. Current projections do not see this CME being geoeffective.
Space Weather Message Code: ALTXMF
Serial Number: 174
Issue Time: 2012
Jul 05 1146 UTC
ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2012
Jul 05 1145 UTC
NOAA Scale: R2 - Moderate
Potential Impacts: Area of
impact centered on sub-solar point on the sunlit side of Earth. Extent of
blackout of HF (high frequency) radio communication dependent upon current X-ray
Flux intensity. For real-time information on affected area and expected duration
please see http://www.swpc.noaa.gov/drap/index.html.
Space Weather Message Code: SUMXM5
Serial Number: 93
Issue Time: 2012
Jul 05 1224 UTC
SUMMARY: X-ray Event exceeded M5
Begin Time: 2012 Jul
05 1139 UTC
Maximum Time: 2012 Jul 05 1144 UTC
End Time: 2012 Jul 05 1149
UTC
X-ray Class: M6.1
Optical Class: 1b
Location: S20W32
NOAA Scale:
R2 - Moderate
Potential Impacts: Area of impact centered primarily on
sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF
(high frequency) radio communication for tens of minutes.
Space Weather Message Code: SUM10R
Serial Number: 552
Issue Time: 2012
Jul 05 1230 UTC
SUMMARY: 10cm Radio Burst
Begin Time: 2012 Jul 05 1142
UTC
Maximum Time: 2012 Jul 05 1144 UTC
End Time: 2012 Jul 05 1145
UTC
Duration: 3 minutes
Peak Flux: 290 sfu
Latest Penticton Noon Flux:
163 sfu
Description: A 10cm radio burst indicates that the electromagnetic
burst associated with a solar flare at the 10cm wavelength was double or greater
than the initial 10cm radio background. This can be indicative of significant
radio noise in association with a solar flare. This noise is generally
short-lived but can cause interference for sensitive receivers including radar,
GPS, and satellite communications.
These events continue unfoldindg and we will be updating this post with new information and images as the day progresses; so continue to check back here for your latest updates.
Thank you for choosing "My Solar Alerts" for your
Solar Weather updates.
Update @ 14:00:00 UTC
Space Weather Message Code: WARK04
Serial Number: 1958
Issue Time: 2012
Jul 05 1303 UTC
WARNING: Geomagnetic K-index of 4 expected
Valid From:
2012 Jul 05 1302 UTC
Valid To: 2012 Jul 05 1900 UTC
Warning Condition:
Onset
Potential Impacts: Area of impact primarily poleward of 65 degrees
Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can
occur.
Aurora - Aurora may be visible at high latitudes such as Canada and
Alaska.
Sunspot Region 1494 produced an M2.1 s/f peaking at 20:06 UTC on June 6, 2012. The SDO, Stereo, and SOHO spacecraft confirm a CME associated with this flare. Although a large portion of the ejecta from this CME was propelled south of the ecliptic, at this time it appears this CME will have a geomagnetic effect on Earth as it passes in 2-3 days.
Type II (est. speed 1148 km/s) and Type IV radio sweeps were also emitted with this flare.
In this image of the X-Flux we can see the M2.1 flare as it was recorded by the GOES Satellites.
In this STEREO Ahead C 2 image we clearly see the CME as it is ejected away from the solar disk. Notice that a large portion of the material is ejected south of the ecliptic away from Earth, but a clearly defined amount of material is also ejected in a full sweep.
In the video below created from SDO Composits of AIA 131, 211, and 335, you can watch this spectacular event unfold as Region 1494 (located south of the ecliptic just right to the center of the disk), unleashes this flare and CME in an Earthward direction.
On May 26, 2012 at approximately 20:47 UTC, a large backside solar eruption occured off of the far west limb of the solar disk producing a backside asymetrical halo CME observed by SOHO LASCO C/2 and C/3.This CME is not expected to be geoeffective. Along with this eruption, Type II, and Type IV radio emmissions were observed. This event began a 10 MeV proton event (NOAA Scale S1), Solar Radiation Storm, that onset May 27 05:05 UTC, with potential impacts being "Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies".
This Event was followed by a LDE (Long Duration Event), C 3.1 flare from Region 1492, lasting from 04:35 untill 07:00 UTC May 27, 2012. This LDE further elevated the proton count ending with a 10 MeV proton event that peaked at 2012 May 27 10:45 UTC, End Time: 2012 May 27 1235 UTC, Maximum 10MeV Flux: 14 pfu. Along with this LDE C class flare there was a CME eruption observed from SOHO Lasco C/2 and C/3. Although not highly Earth directed, CMEs produced from this region of the solar surface generally provide Earth with a "glancing blow", so we expect to see an uptic in geomanetic activity with its arrival May 29th - 30th.
The CME that erupted on April 23, 2012 along with the C2.0 solar Flare from plage Region 1461 (N10W19),(link to "Earth Directed Full Halo CME" report), has arrived and is stirring up a NOAA scale G1, geomagnetic storm with solar winds near the 700km/s range. In the first image to the left we can see the drop in the electron flux as measured by the GOES satellites upon arrival. In the second image we see the deviation in the Boulder, CO magnetometer at the onset of this CME.
Space Weather Message Code: ALTK05
Serial Number: 685
Issue Time: 2012
Apr 26 0245 UTC
ALERT: Geomagnetic K-index of 5
Threshold Reached:
2012 Apr 26 0240 UTC
Synoptic Period: 0000-0300 UTC
Active Warning:
Yes
NOAA Scale: G1 - Minor
Potential Impacts: Area of impact primarily
poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power
grid fluctuations can occur.
Spacecraft - Minor impact on satellite
operations possible.
Aurora - Aurora may be visible at high latitudes, i.e.,
northern tier of the U.S. such as northern Michigan and Maine.
Continue to check back for updates as the storm progresses.
On April 23, 2012 at 17:38 UTC, plage Region 1461 (N10W19), produced a C2.0 Solar Flare with an associated Earth directed Full Halo CME. Varying models place the time of arrival for this CME between April 26, at approx 14:00 UTC, according to the NOAA/WSA-ENLIL Model( click this link to see the latest plot : NOAA/WSA-ENLIL CME Model ), to April 27, at 05:49:22 UTC, Confidence Level: ± 6 hours, with the NASA/ISWA CCMC-ENLIL Model. (click this link to see the latest plot:ISWA/CCMC-ENLIL CME Earth Cone Model). On this animated gif (left),we can see the Full Halo CME as it spreads out around the disk in all directions; captured here by SOHO with the LC3 telescope. Although it is hard to see in this image, there is also a Sundiving Comet that can be seen taking its last trip through the solar system, as it dives into the Sun. You can see it travel from the bottom of the movie window up into the disk at the 7:00 position. For a larger high resolution view click on the gif image. For a current view click the "Latest Lasco C3 Movie" box, over on the right hand side of our page!
A Geomagnetic Storm, NOAA Sclae G2 Moderate Kp=6, causing a Mid Latitude Aurora, continues due to the arrival of a CME that lifted off the solar disk on April 19th. Solar wind velocities increased from 350 - 400 km/s. For the original post on the origins of this CME, read the original post here: CME arrival soon and sunspot update . The CME arrived with a Geomagnetic Sudden Impulse that was observed by NOAA at the Boulder CO magnetometer with a deviation of 31 nT at 03:23 UTC on April 23.
Space Weather Message Code: ALTK06
Serial Number: 284
Issue Time: 2012
Apr 24 0047 UTC
ALERT: Geomagnetic K-index of 6
Threshold Reached:
2012 Apr 24 0046 UTC
Synoptic Period: 0000-0300 UTC
Active Warning:
Yes
NOAA Scale: G2 - Moderate
Potential Impacts: Area of impact primarily
poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid
fluctuations can occur. High-latitude power systems may experience voltage
alarms.
Spacecraft - Satellite orientation irregularities may occur;
increased drag on low Earth-orbit satellites is possible.
Radio - HF (high
frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora
may be seen as low as New York to Wisconsin to Washington state.
One new region was numbered overnight; this was region 1464 which is located just to the north of region 1460, and is a BXO type group at 10 millionths in size.
Region 1459 decayed in size from a EKC group at 250 millionths, to a DSI
at 180 millionths.
Most other groups increased slightly in size.
Numerous C class solar flares took place yesterday, the largest was a
C7 peaking at 1126z from region 1455 that rotated out of view 2 days
ago.
This region produced a large coronal mass ejection that is not Earth directed.
A C1 solar flare from region 1462 also produced a coronal mass ejection that may have an Earthward component. The geomagnetic field is expected to be
quiet to active on April 20.
The CME observed on April 18 could reach
Earth on April 21, and cause active conditions through April 22.
An Aurora watch will be in effect for the next 72 hours.
We can confirm the location of this event.
It a new region which emerged in the last couple hours. The region is close to the new numbered region 1462
A CME can be possible but we have to check more data
Update 17:50 UTC:
The new spot which is still growing in the southwest quadrant (near Region 1462). Fires up every single hour Mid to High Level C-Class flares
Looks harmonic as we can see on the GOES X-ray Flux Chart
We can see now on Stereo Ahead C2 Imagery
The C 8.9 flare was inbounded with a CME.
It looks not that large but its geo-effective as well
A solar sector boundary crossing (polarity of the IMF reverses) indicated by ACE data has been responsible for the unsettled geomagnetic field. A high latitude Aurora Watch will be in effect over the next 24-48 hours. A favorably positioned negative polarity coronal hole is expected to continue to keep our geomagnetic field unsettled through March 29, 2011 UTC. Old Sunspot Region 1429 is expected to return to the solar disk midday on March 29th which should increase M-class flare probabilities.
SOHO LASCO observed a full asymmetric halo CME on the 26th @ 23:12 UTC which was associated with Type II & Type IV radio sweeps. This CME was determined to be a backsided event according to NOAA and not expected to be geoeffective.
Although there was a large Sf and CME from old Sunspot Region 1429 that contributed to this halo CME there was also a filament eruption from the NE limb immediatly after, followed by a C5.3 flare the 27th @ 02:50 UTC with an associated CME (seen on SDO) from Sunspot Region 1444. We expect this latter CME to be geoeffective.
Here on the left we can see a CME associated with the C5.3 Sf from Sunspot Region 1444 as seen from SDO AIA 304 on March 27th at 2:57UTC.
At 13:40 UTC March 15th a geomagnetic sudden impulse was detected indicating that the CME we were expecting today has arrived. This CME was produced in association with a M7.9 solar flare from Sunspot Region 1429 on March 13, 2012. Solar winds reaching as high as 770.5 km/s and a proton density as high as 4.7 p/cc have been picked up at the ACE satellite. With the high wind speed and the Bz tilted south (-) this CME impact is stiring up a G1-Kp5 geomagnetic storm at this time.
We are now seeing the 1st signs of the March 9, 2012 CME show up at ACE at 11:59 UTC. Coming in a bit later than the expected time of around 06:49UTC (+ or - 6hrs.), this CME is forecasted to cause G3 (Strong) geomagnetic storming as the bulk of the CME passes Earth.
View original report on the M6.3 flare + CME here:
ACE Readings @ 01:16 UTC. Monday March 12, 2012:
Solar Wind: 463.6 km/sec
Density: 17.1 protons/cm
Bz: -0.3
By: +4.9
Be sure to check back often for further updates and alerts on this event.
All updates will be added to the bottom of this report.
Original March 11th CME Alert By NOAA NOAA Aleart Issued for March 11, 2012:
Issue Time: 2012 Mar 09 2209 UTC WATCH: Geomagnetic A-index of 50 or greater predicted
NOAA Scale: Periods reaching the G3 (Strong) Level Likely
Valid for UTC Day: 2012 Mar 11
Today's CME arrival turned out to be more of a glancing blow than expected. Because of this, the geomagnetic storm watch issued for today has been canceled. An aurora watch for high latitude viewers is still in effect.
Issue Time: 2012 Mar 11 1951 UTC
CANCEL WATCH: Geomagnetic A-index of 50 or greater predicted for UTC Day 2012 Mar 11
Cancel Serial Number: 44
Original Issue Time: 2012 Mar 09 2209 UTC
Comment: Conditions are not present for strong geomagnetic storming. Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude. Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices. Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur. Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur. Radio - HF (high frequency) radio may be intermittent. Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
In Related Solar News:
The ongoing Proton Event that began on March 7, 2012 continues into it's 4th full day. We are currently at a S3 (Strong) Solar Radiation Storm level. This is expected to continue through the day.
Issue Time: 2012 Mar 11 0935 UTC SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2012 Mar 07 1015 UTC
Maximum Time: 2012 Mar 08 1115 UTC
End Time: 2012 Mar 11 0650 UTC
Maximum 10MeV Flux: 6530 pfu
NOAA Scale: S3 - Strong
Issue Time: 2012 Mar 11 0632 UTC CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 1870
Begin Time: 2012 Mar 10 0410 UTC
Yesterday Maximum 2MeV Flux: 9380 pfu
Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems
UPDATE: There was a CME (Coronal Mass Ejection) produced in association with todays event as we can see on STEREO B (here to the left). At this time the CME appears to have a mostly northward trajectory. We are still waiting on STEREO A to update so we can better determine if this CME will be geoeffective. 
