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Here is this week’s space weather and geophysical report, issued 2015 Jun 15 0323 UTC.

Highlights of Solar and Geomagnetic Activity 08 – 14 June 2015

Solar activity ranged from very low to moderate levels (R1-minor) with very low activity observed on 08 June, low activity observed on 09, 10 and 12 June and moderate activity observed on 11, 13 and 14 June. A majority of the flare activity occurred from Regions 2360 (N15, L=129, class/area Eac/220 on 12 June) and 2367 (S20, L=001, class/area Ekc/340 on 14 June). Region 2367, the largest region on the disk, produced an M1 flare at 11/0855 UTC. This region exhibited steady growth since first rotating onto the disk on 10 June. Region 2360 produced an M1/Sf flare at 13/0729 UTC and an M2 flare at 14/0059 UTC while exiting the west limb on the 14th. Multiple filament eruptions and eruptive prominences were observed throughout the week, but none resulted in Earth-directed coronal mass ejections.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 08-09 June. High levels on 10-13 June and moderate levels on 14 June were observed in response to an enhanced solar wind environment caused by the influence of a negative polarity coronal high speed stream (CH HSS).

Geomagnetic field activity was at predominately quiet to active levels with isolated minor storm levels (G1-minor) observed on 08 and 14 June and an isolated major storm period (G2-moderate) observed on 08 June. The summary period began with unsettled to major storm levels as Earth was under the influence of a negative polarity CH HSS. Effects from the CH HSS persisted through midday on 11 June with quiet to active conditions. Quiet to unsettled conditions were observed for the remainder of 11 June through 13 June. The period ended on 14 June with a co-rotating interaction region in advance of a positive polarity CH HSS that affected Earth's geomagnetic field with unsettled to isolated minor storm periods.

Forecast of Solar and Geomagnetic Activity 15 June – 11 July 2015

Solar activity is expected to be at low levels with a slight chance for M-class (R1-minor) flare activity from 15-24 June from Region 2367 (S20, L=001). As region 2367 rotates off the disk, very low to low levels are expected on 25-26 June. Activity levels are expected to increase to low with a slight chance for M-class flare activity on 27 June – 11 July as old Region 2360 (N15, L=129) rotates back on to the visible disk.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is anticipated to reach moderate to high levels on 15-19 Jun and 07-11 Jul in response to an enhanced solar wind environment caused by the influence of coronal hole high speed streams (CH HSSs). Normal levels are expected for the remainder of the outlook period.

Geomagnetic field activity is expected to reach unsettled to active levels on 15-16 Jun and 06-08 Jul with minor storm levels (G1-minor) anticipated on 05 Jul and 11 Jul in response to recurrent CH HSS effects. Generally quiet field conditions are expected for 17 Jun-04 Jul.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: + https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Here is this week’s space weather and geophysical report, issued 2015 Jun 08 0221 UTC.

Highlights of Solar and Geomagnetic Activity 01 – 07 June 2015

Solar activity was low this period. Low to mid-level C-class flare activity dominated the period and Region 2361 (N16, L=105, class/area=Dai/110 on 06 Jun) was responsible for the bulk of the activity. Region 2361 produced a total of nine C-class flares throughout the week, the largest of which was C8/Sf flare at 0947 UTC on 04 Jun. Region 2360 (N15, L=132, class/area=Eac/140 on 07 Jun) grew in total sunspot count, area, and magnetic complexity late in the week but was only responsible for three low-level C-class flares this period. In addition to the low-level solar activity, multiple disappearing solar filaments and eruptive prominence liftoffs were observed throughout the week, but none resulted in Earth-directed coronal mass ejections.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels throughout the period.

Geomagnetic field activity was at quiet levels throughout the period under an ambient solar wind environment with unsettled levels observed early on 01 Jun and late on 07 Jun which were attributed to minor perturbations in the solar wind.

Forecast of Solar and Geomagnetic Activity 08 June – 04 July 2015

Solar activity is expected to be at low levels with a slight chance for M-class (R1-Minor) flare activity for 08-16 Jun due to the flare potential from Regions 2360 (N15, L=132), 2361 (N16, L=105), and 2362 (N07, L=100). As Regions 2360, 2361, and 2362 rotate off the visible disk, very low levels of solar activity are expected with a chance for C-class flare activity for 17 Jun-04 Jul.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is anticipated to reach high levels on 10-14 Jun with moderate levels likely on 15-19 Jun in response to an enhanced solar wind environment caused by the influence of coronal hole high speed streams (CH HSSs). Normal levels are expected for the remainder of the period.

Geomagnetic field activity is expected to reach active levels on 08, 10 Jun with G1 (Minor) geomagnetic storm conditions anticipated on 09 Jun in response to a recurrent negative polarity CH HSS. Unsettled geomagnetic field conditions are expected on 11-12 Jun as CH HSS effects subside. A recurrent positive polarity CH HSS is expected to bring about isolated periods of unsettled conditions on 15 Jun. Generally quiet field conditions are expected for 16 Jun-03 Jul with unsettled levels likely again on 04 Jul due to a solar sector boundary crossing ahead of a negative polarity CH HSS.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: + https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Here is this week’s space weather and geophysical report, issued 2015 Jun 01 0141 UTC.

Highlights of Solar and Geomagnetic Activity 25 – 31 May 2015

Solar activity was at very low levels for the majority of the period with the exception of 27 May when low levels were observed. The period was dominated by only low-to-mid level B-class flares with an isolated C1 flare at 2131 UTC on 27 May. The only C-class event of the period originated from Region 2456 (S16, L=199, class/area=Cso/70 on 30 May) but no coronal mass ejection (CME) was observed with this event. Multiple prominence and filament eruptions were observed throughout the period but none resulted in Earth-directed CMEs.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was normal levels throughout the period.

Geomagnetic field activity was generally quiet throughout the period with an isolated period of unsettled activity observed between 27/1200-1500 UTC.

Forecast of Solar and Geomagnetic Activity 01 June – 27 June 2015

Solar activity is expected to be very low with a chance for C-class flare activity throughout the outlook period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at moderate levels on 15-19 Jun and high levels on 10-14 Jun with normal levels expected for the remainder of the period.

Geomagnetic field activity is expected to be at active levels on 10 and 14-15 Jun with G1 (Minor) geomagnetic storms likely on 08-09 Jun, all in response to recurrent coronal hole high speed stream influence. Quiet to unsettled geomagnetic field activity is expected for the remainder of the period.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: + https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Here is this week’s space weather and geophysical report, issued 2015 May 25 0854 UTC.

Highlights of Solar and Geomagnetic Activity
18 – 24 May 2015

Solar activity was at low levels from 18-23 May with very low levels observed on 24 May. Only low level isolated C-class flaring was observed during the period originating from Regions 2349 (S21, L=002, class/area Dao/060 on 24 May), 2351 (N22, L=330, class/area Cso/020 on 20 May), and 2353 (N07, L=344, class/area Dao/060 on 24 May). Region 2339 (N13, L=129, class/area Fkc/900 on 08 May), which was very productive last period, decayed as it quietly rotated around the NW limb on 18 May. Region 2349 emerged on the visible disk on 18 May, but did not show any significant growth until 23 May. Region 2353 emerged on 21 May and exhibited growth through the end of the period. However, both regions only managed 60 millionths of coverage by the end of the period. No Earth directed coronal mass ejections were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 19 and 24 May, moderate levels from 20-23 May, and at high levels on 18 May.

Geomagnetic field activity ranged from quiet to major storm conditions. The period began under the influence of a co-rotating interaction region followed by a positive polarity equatorial coronal hole high speed stream (CH HSS). Total field increased to a maximum of 18 nT at 19/0052 UTC while the Bz component fluctuated between +13 nT and -15 nT late on 18 May through early on 19 May. Solar wind increased to near 575 km/s by midday on 19 May before slowly returning to nominal conditions by late on 20 May. The geomagnetic field responded with minor to major storm conditions late on 18 May through early on 19 May. Quiet to unsettled levels were observed on 20 May. A return to quiet conditions occurred on 21 May and persisted through the end of the period.

Forecast of Solar and Geomagnetic Activity
25 May – 20 June 2015

Solar activity is expected to be at very low to low levels. A chance for moderate levels exists from 30 May through 11 Jun with the return of Region 2339.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal to moderate levels with high levels possible from 31 May-01 Jun, 04-06 Jun, 10-12 Jun, and 16-20 Jun due to recurrent CH HSS effects.

Geomagnetic field activity is expected to be at unsettled to active levels from 28-30 May, 02-03 Jun, 07-11 Jun, and 13-15 Jun with possible minor storm levels on 08-09 Jun due to recurrent CH HSS effects.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users:
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO):
https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Here is this week’s space weather and geophysical report, issued 2015 May 18 0402 UTC.

Highlights of Solar and Geomagnetic Activity
11 – 17 May 2015

Solar activity was low from 11-15 May. The largest event of the
period was a C9/1n at 13/1838 UTC associated with a filament
eruption near Region 2345 (N16, L=113, class/area Axx/020 on 13
May). Region 2339 (N13, L=129, class/area Fkc/900 on 08 May) was the
most active region on the disk and produced 19 C-class events during
the period. There were several filament eruptions observed during
the period however, none of them turned out to be geoeffective.
Solar activity decreased to very low levels for 16-17 May.

The greater than 10 MeV proton flux at geosynchronous orbit was
enhanced on 12 May reaching a peak flux of 6 pfu at 12/0720 UTC but
never crossed alert threshold.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal to moderate levels on 11-13 May before reaching high levels
daily for the remainder of the period in response to effects from a
negative polarity coronal hole high speed stream (CH HSS).

Geomagnetic field activity was at unsettled to active levels on 11
May and mostly unsettled levels on 12 May due to extended periods of
negative Bz. On 13 May, geomagnetic field conditions increased to
active to major storm levels due to the onset of a recurrent
negative polarity CH HSS. Quiet to unsettled levels persisted on
14-15 May as effects from the HSS subsided. Quiet conditions
prevailed for the remainder of the period.

Forecast of Solar and Geomagnetic Activity
18 May – 13 June 2015

Solar activity is expected to be at very low levels with a chance
for C-class flares and a slight chance of M-class flares on 18 May
before decreasing further to only a chance for C-class flares once
Region 2339 rotates fully around the west limb on 19 May. The chance
for M-class activity increases on 25 May with the return of old
Region 2335 (S15, L=192) and remain elevated through the remainder
of the forecast period.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at moderate to high levels from 18-28 May due to
residual effects from last weeks negative polarity CH HSS followed
by effects from an anticipated positive polarity HSS due to become
geoeffective on 18 May. Normal to moderate levels are expected to
prevail with the exception of 31 May-01 Jun, 04-06 Jun, and 10-12
Jun following various recurrent CH high speed streams.

Geomagnetic field activity is expected to be quiet to active on
18-19 May due to effects from a positive polarity CH HSS. Mostly
quiet conditions are expected from 20 May to 01 Jun. Quiet to
unsettled conditions with a chance for active periods are expected
on 02-03 Jun due to effects from a negative polarity HSS followed by
quiet conditions through 06 Jun. Unsettled conditions are expected
on 07 and 10 Jun as well as active to minor storm conditions on
08-09 Jun due to the anticipated return of the recurrent negative
polarity CH HSS that yielded major storm conditions this week.
Mostly quiet conditions are expected for the remainder of the
period.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users:
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO):
https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

Here is this week’s space weather and geophysical report, issued 2015 May 11 0537 UTC.

Highlights of Solar and Geomagnetic Activity
04 – 10 May 2015

Solar activity ranged from low to high levels during the period. The
largest and most active regions on the solar disk this period were
Regions 2335 (S15, L=192, class/area Eac/310 on 04 May) and 2339
(N13, L=129, class/area Fkc/900 on 08 May). Region 2335 began the
period reaching its peak in area and magnetic complexity
(Beta-gamma). On 05 May it produced two M-class flares; an M1 at
05/1425 UTC and an M2 at 05/1724 UTC. By 06 May, Region 2335 was in
decay and ended the period as a simple Cro spot class with a beta
magnetic configuration. Region 2339 was in a growth phase since it
rotated around the NE limb on 05 May. This region was responsible
for multiple M-class flaring spanning 05-06 May and an impulsive X2
flare at 05/2211 UTC with an associated Type II radio sweep (1163
km/s), a 590 sfu Tenflare and a non-Earth directed coronal mass
ejection (CME) first observed in SOHO/LASCO C2 imagery at 05/2224
UTC off the NE limb. Solar activity declined to low levels from
07-10 May.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
moderate levels on 04-05 May and at normal levels from 06-10 May.

Geomagnetic field activity ranged from quiet to minor storm levels
during the period. The period started off with quiet conditions on
04 and 05 May under a nominal solar wind regime. At 06/0053 UTC, a
shock was observed at the ACE satellite associated with a 02 May CME
that occurred as a result of an 18 degree filament eruption observed
between 02/1500-1830 UTC. Total field increased to a maximum of 18
nT at 06/0614 UTC while the Bz component went southward to a maximum
of -13 nT at 06/1216 UTC. Solar wind speeds increased from 363 km/s
to around 490 km/s. A geomagnetic sudden impulse was subsequently
observed at 06/0143 UTC with a 31 nT deviation in the Boulder
magnetometer. As a result, quiet to minor storm levels were observed
on 06 May. By late on 06 May and through 07 May, the Bz component
deflected north and remained so as CME effects diminished. Nominal
solar wind conditions prevailed through 10 May when the total field
became enhanced once again. Total field increased to 14 nT with
prolonged periods of southward Bz. No appreciable increase in solar
wind speed was observed with this event, however. The geomagnetic
field was quiet on 07 May, quiet to unsettled on 08 and 09 May and
quiet to active on 10 May.

Forecast of Solar and Geomagnetic Activity
11 May – 06 June 2015

Solar activity is expected to be at low levels with a chance for
M-class (R1-R2, Minor-Moderate) flares from 11-18 May as Region 2339
transits the visible disk and again from 31 May-06 June when Region
2339 returns.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is
expected to be at normal to moderate levels with high levels
possible from 13-18 May and again from 21-23 May due to coronal hole
high speed stream (CH HSS) activity.

Geomagnetic field activity is expected to be at unsettled to active
levels from 11 through 14 May with periods of minor storming
(G1-Minor) likely on 12-13 May due to a combination of a co-rotating
interaction region followed by a CH HSS. Unsettled to active levels
are also expected from 18-19 May and 02 -03 June with possible
periods of minor storming on 18 May due to multiple recurrent CH
HSS.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users:
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO):
https://www.youtube.com/watch?v=zXN-MdoGM9g

We’re on Facebook: http://NW7US.us/swhfr

There is a new sunspot region rotating into view, producing moderately-strong (M-class) x-ray flares. This video shows you the first 11 hours of May 5, 2015

Expect flares throughout this week, which will degrade HF propagation DURING the flare, but enhance propagation overall (due to the higher Radio Flux). There might be occasional coronal mass ejections, too.

https://www.youtube.com/watch?v=lgis5Bg8dBk