Articles tagged "CME"

G1 (Minor) Geomagnetic Storm in progress - May 18, 2013

May 18, 2013

G1 (Minor) Geomagnetic Storm conditions are now occurring due to the arrival of the CME from May 15, 2013. During G1 Geomagnetic Storm, weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora is commonly

Third major X-class solar flare in 24 hours - X3.2 on May 14, 2013

May 14, 2013

Solar activity increased rapidly in the past two days with three M-class and three major X-class solar events. The latest recorded is the strongest flare so far this year, recorded as X3.2 on May 14, 2013 at 01:17 UTC. This event was associated with Type II and

Major eruption - Active region around east limb produced powerful X1.7 solar flare

May 12, 2013

A new active region behind east limb produced powerful X1.7 solar flare on May 13, 2013 at 02:15 UTC. This event was associated with strong R3 Radio Blackout Alert, Type II Radio Emission and 10 cm Radio Burst. This was the strongest solar flare of

Prominence eruption and CME on May 1, 2013 captured by SOHO, STEREO and SDO spacecrafts

May 07, 2013

On May 1, 2013, Active Region just around the left edge of the Sun erupted with a huge coronal mass ejection (CME). The video bellow shows combined imagery from NASA’s SDO, SOHO and STEREO heliophysics fleet. Solar Dynamics Observatory (SDO) provided a

Intro to space weather vocabulary video

May 06, 2013

Heliophysics scientists study energy transformation from one event to the other and which electromagnetic waves create which conditions near Earth. Space weather effects can disrupt satellites in space, so scientists need to understand the system in even more detail.

Geomagnetic storms - basic terms, data, plots and graphs

March 18, 2013

A coronal mass ejection (CME) that erupted on March 15, 2013, hit Earth's magnetic field at 06:00 UTC on March 17, 2013. The solar wind speed reached 700 km/s and sparked a moderately strong G2 (Kp=6) geomagnetic storm and minor S1 solar radiation storm. NOAA/SWPC

Minor geomagnetic activity expected at high latitudes

March 15, 2013

On March 12, 2013 a solar filament in the sun's northern hemisphere erupted and launched Coronal Mass Ejection (CME). The source of the explosion was active region AR1690. A CME produced by the explosion is traveling north of the Earth line, but part of the CME

Fiery looping rain on the Sun

February 20, 2013

Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with changes in magnetic field lines

Fast-growing Sunspot 1678 poses threat for M-class and X-class solar flares

February 20, 2013

Sun erupted slow-moving Coronal Mass Ejection (CME) on February 19, 2013. Goddard Space Flight Center reported that the bulk of the plasma cloud was directed to the north of Earth. Still, we can expect a glancing blow around February 22, 2013. Minor to moderate

Sunspot 1675 generated impulsive M1.9 solar flare

February 17, 2013

An impulsive solar flare measuring M1.9 erupted from Region 1675 on February 17, 2013. The event started at 15:45, peaked at 15:50 UTC and ended at 15:52 UTC. A 10cm Radio Burst was recorded from 15:47 - 15:51 UTC.Space Weather Message Code: SUM10RSerial Number:

Sunspot 1667 generated strong C8.7 solar flare and possible Earth-directed CME

February 06, 2013

A solar flare registered as C8.7 was detected at 00:21 UTC on February 6, 2013. The source of the flare was decaying Active Region 1667. According to images from NASA's STEREO-B spacecraft, the associated CME appears to be heading in the Earth direction, with expected

First sightings of how a Coronal Mass Ejection (CME) forms

February 02, 2013

On July 18, 2012, a fairly small explosion of light burst off the lower right limb of the sun. Such flares often come with an associated eruption of solar material, known as a coronal mass ejection or CME - but this one did not.Something interesting did happen,

Ring-shaped prominence and Earth directed CME erupts from Sun - January 31, 2013

January 31, 2013

An Earth-directed Coronal Mass Ejection (CME) on January 31, 2013 (07:09 UTC) was accompanied by a large prominence eruption best visible in light with a wavelength of 304 angstroms. NASA's Solar Dynamics Observatory captured this footage from 10 p.m. EST (03:00 UTC)

Solar prominences on January 23, 2013

January 24, 2013

Solar activity remained at low levels for the past 24 hours. However, there were two large prominence eruptions on January 23, 2013. First large prominence erupted from the southern limb in early hours, producing south-directed CME cloud, away from Earth. It was

Moderate to high solar activity with possible geomagnetic disturbances

January 14, 2013

Solar activity has been at moderate to high levels for the past 24 hours. AR1652 produced two M-class and 8 C-class solar flares in the past 24 hours, and it has rapidly evolved to a compact beta-gamma-delta configuration. This active region erupted M1.0 flare

Sunspot 1620 generated M2.2 solar flare

November 28, 2012

Sunspot 1620 produced M2.2 solar flare with peak at 21:36 UTC on November 28, 2012. Fast growing sunspot AR1620 has a beta-gamma-delta magnetic field that harbors energy for X-class solar flares. M-class activity is also possible from region AR 1618 which has now

Fast growing sunspot AR 1620 harbors energy for strong flares

November 26, 2012

Five sunspot groups were reported today by Catania. Sunspots AR 1618 and AR 1620 have beta-gamma-delta and beta-gamma configurations of their photospheric magnetic field, respectively, and are being closely monitored for further flaring activity. NOAA/SWPC forecasters

Sunspot 1618 facing Earth - Beta-Gamma-Delta magnetic configuration

November 23, 2012

Active Region 1618 keeps evolving and it has now Beta-Gamma-Delta magnetic configuration that harbors energy for M- and X-class eruptions. It produced an M3.5 flare with peak at 15:30 UTC on November 21, related to a halo CME first seen at 16:12 UTC by SOHO's LASCO

Geomagnetic storm in progress (November 14, 2012)

November 14, 2012

Geomagnetic storm conditions are currently in progress in the wake of CME passage. A prolonged period of southward interplanetary magnetic field brought G2 (Moderate) Geomagnetic Storm conditions early on November 14 (UTC), evening hours November 13 (EST) according to

While Earth expects CME impact, Sunspot 1613 produced M2.0 solar flare

November 13, 2012

Active region 1613 produced M2.0 solar flare at 23:28 UTC on November 12, 2012. This expanding region is rotating into direct Earth-view position and may produce more activity. Sunspots 1610, 1611 and 1614 are currently the largest sunspots on the visible solar disk.

Sun produced spectacular plasma prominence and backsided M1.0 flare

November 11, 2012

Solar activity is moderate. Three C-class events were observed overnight and giant plasma filled prominence occurred on the southwest limb. M1.0 solar flare was registered around 02:11 UTC but it was not associated with numbered active region. Amazing plasma filled

Solar filament eruption sent Earth-directed CME

November 10, 2012

A Coronal Mass Ejection (CME) was observed on November 9, around 15:24 UTC. It was associated with filament eruption around sunspot 1608 in the southeast quadrant of the disk. This region is facing Earth and any Coronal Mass Ejection (CME) may be geoeffective.

Sun hurled two bright CMEs into space, both non-Earthbound

November 08, 2012

New region 1611 rotated into view on the east limb and produced a moderate M1.7 flare at 02:23 UTC and a type II radio sweep shortly after, on November 8, 2012. Flare generated bright coronal mass ejection (CME) in eastward direction which means that it would not

STEREO satellites recorded 8 CME's over two-day period

November 07, 2012

The Sun produced a series of at least eight coronal mass ejections (CMEs) over a two-day period (November, 2-4, 2012). Some of them overlapped each other as the Sun burst some of them into space in a rapid-fire style. The series was taken by the STEREO Ahead spacecraft

Three CMEs observed on western limb, one could be geoeffective

November 04, 2012

Magnetic filament eruption took place beyond the western limb, producing a halo or partial-halo CME on November 3. In fact, three CME clouds were ejected into space, with one appeared to have slight chance to become geoeffective. Minor solar wind stream from

Weak CME impact caused unsettled geomagnetic field levels

November 02, 2012

A weak CME shock was observed in the solar wind by the ACE and SOHO/CELIAS instruments on October 31st afternoon around 14:45 UTC. The solar wind speed jumped up from 280 km/s up to 370 km/s and also the solar wind density increased. Initial solar wind velocity had

Moderate solar activity - M2.3 solar flare, G2 geomagnetic storm

October 08, 2012

Moderate solar activity has been observed during the past 24 hours. M2.3 solar flare was triggered by an Active Region behind the eastern limb around 11:17 UTC. Three C flares occurred during the day producing two CMEs, observed by LASCO C2/C3 coming off the east

October 5 CME hits Earth - Geomagnetic storm in progress

October 08, 2012

The ACE Spacecraft detected a sudden solar wind increase to over 400 km/s at 04:30 UTC. A weak coronal mass ejection (CME) hit Earth's magnetic field on Oct. 8th at approximately 05:00 UTC. 15 minutes after A Geomagnetic Sudden Impulse (21 nT) was registered.Low

Earth-directed partial halo CME should reach our magnetic field late on October 8

October 06, 2012

A long duration B7.5 solar flare was observed at 07:30 UTC on October 5. Post eruption loop structures were observed in GOES SXI imagery in the vicinity of Region 1584. A partial halo CME was first observed in SOHO/LASCO C3 imagery at 07:30 UTC and STEREO Ahead

M1.3 and C9.9 solar flares occurred while Earth expects impact of September 28 CME

October 01, 2012

Sunspot 1583 on the western limb produced an M1.3 flare on Sept. 30 at 04:33 UTC. Region 1583 had grown rapidly in the past 24 hours, however it is only hours away from rotating off the solar disk and out of view. SIDC and NOAA/SWPC expect mostly eruptive conditions

CME from September 28 eruption heading toward Earth

September 30, 2012

Sunspot 1577 generated a long duration C3.7 solar flare which hurled a coronal mass ejection (CME) almost directly toward Earth on September 28. Proton levels reached the S1 Minor Radiation Storm level soon after the event. The proton event linked to the C3.7 flare

Solar prominence observed at eastern limb

September 23, 2012

Solar activity was at low levels. The largest event during last 48 hours was a long duration C1 solar flare with a large prominence erupted on September 23 around 15:56 UTC from an area behind the eastern limb. It produces CME cloud with no threat to Earth.Some

Several strong solar flares and CME's seen at farside

September 20, 2012

At least three large CME clouds were observed during last 24 hours but all of them were at far side so there is no danger for Earth, they are heading away from our planet. Old Sunspot 1564 was probably source of the flares. STEREO Behind COR2 recorded bright flash with

Sun produced great solar filament eruption

September 14, 2012

Solar activity is expected to be low with a slight chance for M-class flares for the next three days, mainly from Region 1569. NOAA/SWPC estimates 20% chances of M-class solar flare. Region 1564 is crackling with C-class flares.The geomagnetic field was mostly quiet

Video of August 31 CME traveling through space

September 11, 2012

Anyone who observes solar activity here and there surely noticed spectacular solar filament on August 31, 2012. We saw amazing images presented to us by solar observatories in space and now SOHO combined all recordings from EUVI, COR1, COR2 and HI1 that give us clear

Geomagnetic storming levels back to normal

September 06, 2012

Geomagnetic storming reached the G2 (Moderate) level at high latitudes again early today. Bright auroras could be seen around Arctic Circle. It was sparked by one of two coronal mass ejections observed on September 2. Solar radiation storm levels have returned to

Geomagnetic activity at normal levels while another CME impact expected

September 04, 2012

NOAA/SWPC reported that the G1 (minor) Geomagnetic Storm has ended with the return of normal solar wind conditions. Currently solar winds blow at speed of 419.1 km/sec. Earthbound proton levels are now below the S1 Minor Radiation Storm threshold and geomagnetic

CME shock from solar filament on August 31 hit Earth, geomagnetic storming in progress

September 04, 2012

Solar filament eruption on August 31 generated at least two potentially Earth directed CME clouds. Earth was hit by first CME shock, observed in the solar wind around 11:20 UTC. The impact induced significant ground currents in northern Scandinavia and

Minor to Moderate Geomagnetic Storming possible at high latitudes

September 02, 2012

The Coronal Mass Ejection was caused by the large filament eruption late on August 31st. Minor to Moderate Geomagnetic Storming will be possible at high latitudes, especially on September 3rd. Solar Radiation Storm levels have increased above the S1 (Minor)

Minor solar radiation storm in progress

September 01, 2012

High levels of low energetic protons are recorded streaming past Earth causing minor S1 solar radiation storm. Proton event 10MeV Integral Flux exceeded 10 pfu. Minor impacts on HF radio are possible around polar regions.Elevated solar radiation storm levels are