Sol (Sun) and its phenomena

[Ca.]

https://twitter.com/x/status/1655946625611866116

Premiered 4 hours ago

Heads up Oklahoma there’s a risk for severe weather Thursday https://tinyurl.com/4vejnrt8 Storm threat increases Thursday-Friday For Nebraska https://tinyurl.com/5hbmzrzx NW Kansas storms produce tornado, torrential rain, damaging winds https://tinyurl.com/4d762uer Heavy hail, rain fall in Parker https://tinyurl.com/2ub9kypd Severe thunderstorm warnings impacting Front Range, eastern plains https://tinyurl.com/3dw9nrwh Severe weather continues around Denver https://tinyurl.com/2p8jecbv An Oregon heat wave is coming. Don’t jump in the river https://tinyurl.com/3dmpvmz4 Overnight hail storm hits parts of Colorado's Front Range, causes damage https://tinyurl.com/54du7nkx Golf ball-sized hail damages cars in Erie https://tinyurl.com/6uw4jsts Good news for Lake Powell as snowpack continues to melt https://tinyurl.com/2n7xf4w7 Heavy Rain in the Lower Mississippi Valley; Severe Storms in the High Plains https://www.weather.gov/ GFS Model Total Snow US https://tinyurl.com/daujw7be 7.6 earthquake hits off Tonga, no tsunami warning https://tinyurl.com/2p92zbry No Tsunami Warning, Advisory, Watch, or Threat https://www.tsunami.gov/ WORLDWIDE VOLCANO NEWS https://www.volcanodiscovery.com/volc... Space Weather https://solarham.net/

https://twitter.com/x/status/1654092195517874194

Anecdotally, It seems to be more yellow recently. We've had some cloudless blue sky days and I've sort of had a feeling that its almost like there is a slight color shade or dimness to it.

I'm curious what's your longitude and latitude. Though that may have nothing to do with your comment.

According to NASA during solar minimums, the sun's light intensity (TSI), fluctuates between your observation and my opinion.
But any and all corrections are always appreciated.

Meanwhile:

https://twitter.com/x/status/1656536838977253378

Another view of the highly developed #tuba (possible #tornade ), observed yesterday around 5 p.m. in Bellenglise, near St-Quentin
( Aisne )

 

[dennis]

Ca. I'm in piedmont Carolina so you can generally take Charlotte as a reference point. TSIS-2 data is apparently not online yet or I haven't found it. My "observation" is more like a subtle feeling rather than anything more definitive.

An accurate solar-irradiance spectrum is needed as an input to any planetary atmosphere or climate model. Depending on the spectral characteristics of the chosen model, uncertainties in the irradiance may introduce significant differences in atmospheric and climate predictions. This is why several solar spectral-irradiance data sets have been published during the last decade.

Characteristics of solar-irradiance spectra from measurements, modeling, and theoretical approach - Light: Science & Applications

An accurate solar-irradiance spectrum is needed as an input to any planetary atmosphere or climate model. Depending on the spectral characteristics of the chosen model, uncertainties in the irradiance may introduce significant differences in atmospheric and climate predictions. This is why...

www.nature.com

Data

Data Access Summary Science Data Product Guide (pdf) Algorithm Theoretical Basis Document (ATBD) (pdf) Available Data Summary Reading Data Files Quick Overview Data Product Characteristics Science Data Processing Release Notes: TIM, SIM Available Data Summary Data Product Instr. Time Cadence...

lasp.colorado.edu

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 12_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2.1 event observed at 0901 UTC on May 11 from Region 3294 (S07W47) it caused a Minor R1 radio blackout over Indian Ocean.

https://twitter.com/x/status/1656600043816730624

https://twitter.com/x/status/1656836616852307971

https://twitter.com/x/status/1656838435225710594

There are currently 9 numbered sunspot regions on the solar disk: AR3293, AR3294, AR3296, AR3297, AR3300, AR3301, AR3302. AR3303 and new region AR3304

Total number of sunspots has decreased to 152 (62 of these are grouped into 9 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 20% chance for X flares.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours.Solar wind speed reached a peak of 611 km/s (Moderately Elevated speed) at 21:12 UTC on May 11

Aurora Oval Bz: -2.56 nT South


● Current Conditions at 04:00 UTC on May 12

▪︎ Geospace quiet
▪︎ Geomagnetic conditions now : Kp 2
▪︎ Solar wind speed record: 495 km/sec (Elevated speed)
▪︎ density: 7.8 p/cm³ (low density)
▪︎ Neutron Counts today: -5.7% (Low)
▪︎ X-ray Solar Flare: C1 at 03:23 UTC
▪︎ Sunspot number: 152 (SN 154 May 11)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 13_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C5.6 event observed at 13:36 UTC on May 12 from Region 3296 (N15W76)

https://twitter.com/x/status/1657206344376516610

There are currently 10 numbered sunspot regions on the solar disk: AR3293, AR3294, AR3296, AR3297, AR3300, AR3301, AR3302. AR3303, AR3304 and new region AR3305

BIG FARSIDE SUNSPOT: You might suppose that the farside of the sun is hidden from view. However, researchers using a technique called "helioseismology" can make crude maps of the sun's hidden hemisphere. Their latest map reveals a huge farside active region:​

​

The black blob is a sunspot group--big enough to alter the way the sun vibrates. Sunspots on this scale are usually active. The sun's rotation will turn it to face Earth late next week. Between now and then, we might see some nice farside CMEs in SOHO coronagraph images. SpaceWeather.com​

Total number of sunspots has decreased to 134 (45 of these are grouped into 10 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 15% chance for X flares.

● Auroral Activity

The geomagnetic field has been at quiet to Minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 598 km/s (Moderately Elevated speed) at 06:15 UTC on May 11 Minor G1 geomagnetic storm (Kp5) threshold reached at 14:45 UTC

https://twitter.com/x/status/1656979372509745154

"DUD" CME IMPACT SPARKS MINOR STORM: A CME hit Earth's magnetic field on May 12th at 0635 UT, deflecting magnetometer needles at the Ottawa Magnetic Observatory by 34 nT. A bit of a dud, the impact sparked only a minor G1-class geomagnetic storm and no widespread auroras. SpaceWeather.com

Aurora Oval Bz: 4.22 nT North


● Current Conditions at 04:10 UTC on May 13

▪︎ Geospace unsettled
▪︎ Geomagnetic conditions now : Kp 3
▪︎ Solar wind speed record: 469 km/sec (Elevated speed)
▪︎ density: 6.27 p/cm³ (low density)
▪︎ Neutron Counts today: -4.9% (Low)
▪︎ X-ray Solar Flare: C9 at 00:45 UTC
▪︎ Sunspot number: 134 (SN 152 May 12)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 14_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C9 event observed at 00:45 UTC on May 13 from Region 3296 (N15W89)

There are currently 9 numbered sunspot regions on the solar disk: AR3294, AR3296, AR3297, AR3300, AR3301, AR3302. AR3303, AR3304, AR3305
AR3293 is gone.

Total number of sunspots has decreased to 120 (49 of these are grouped into 9 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 35% chance for M flares and 10% chance for X flares. All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to active levels for the past 24 hours.
Solar wind speed reached a peak of 495.7 km/s (Elevated speed) at 00:16 UTC on May 13 Active geomagnetic conditions (Kp4)
Threshold Reached at 20:55 UTC

UNEXPECTED CME IMPACT: A CME hit Earth on May 13th at approximately 1915 UT. The unexpected impact was relatively weak, but it could still spark G1-class geomagnetic storms in the hours ahead. SpaceWeather.com

Aurora Oval Bz: 3.03 nT North


● Current Conditions at 04:10 UTC on May 14

▪︎ Geospace quiet.
▪︎ Geomagnetic conditions now : Kp 1
▪︎ Solar wind speed record: 452.4 km/sec (Elevated speed)
▪︎ density: 5.26 p/cm³ (low density)
▪︎ Neutron Counts today: -2.9% (Low)
▪︎ X-ray Solar Flare: C3 at 23:43 UTC
▪︎ Sunspot number: 120 (SN 134 May 13)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 15_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C7 event observed at 09:17 UTC on May 14 from Region 3296 (N15W90)

There are currently 8 numbered sunspot regions on the solar disk: AR3294, AR3297, AR3300, AR3301, AR3302, AR3304, AR3305 and new region AR3306

Total number of sunspots has decreased to 109 (41 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 15% chance for M flares and 1% chance for X flares. All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to active levels for the past 24 hours.
Solar wind speed reached a peak of 534 km/s (Elevated speed) at 20:09 UTC on May 14

Aurora Oval Bz: 2.69 nT North


● Current Conditions at 04:10 UTC on May 15

▪︎ Geospace quiet.
▪︎ Geomagnetic conditions now : Kp 1
▪︎ Solar wind speed record: 465.4 km/sec (Elevated speed)
▪︎ density: 6.73 p/cm³ (low density)
▪︎ Neutron Counts today: -2.9% (Low)
▪︎ X-ray Solar Flare: C3 at 00:51 UTC
▪︎ Sunspot number: 109 (SN 120 May 14)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 16_2023

ALL QUIET. Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C3 event observed at 00:51 UTC on May 15 from Region 3306 (S18W50)

https://twitter.com/x/status/1658128469899763712

https://twitter.com/x/status/1658132201941135361

https://twitter.com/x/status/1658284676232929280

There are currently 6 numbered sunspot regions on the solar disk: AR3301, AR3302, AR3304, AR3305, AR3306 and new region AR3307

Total number of sunspots has decreased to 103 (43 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 15% chance for M flares and 1% chance for X flares.

AR3305 (N10W03) is in a state of turmoil, with sub-spots rapidly appearing and disappearing. These instabilities could lead to solar flare activity. This sunspot now has a beta-gamma magnetic field that harbors energy for C-class and some M-class flares.

● Auroral Activity

The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 518.2 km/s (Moderately high speed) at 01:23 UTC on May 15

Aurora Oval Bz: Bz: -3.62 nT South

● Current Conditions at 04:20 UTC on May 16

▪︎ Geospace unsettled
▪︎ Geomagnetic conditions now : Kp 3
▪︎ Solar wind speed record: 481.1 km/sec (Elevated speed)
▪︎ density: 8.29 p/cm³ (low density)
▪︎ Neutron Counts today: -2.0% (Low)
▪︎ X-ray Solar Flare: C1 at 00:53 UTC
▪︎ Sunspot number: 103 (SN 109 May 15)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 17_2023

ALMOST X-FLARE. Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a M9.6 event observed at 16:43 UTC on May 16 from a far side sunspot located on the southeast.

SOMETHING FLARE-Y THIS WAY COMES: A new and apparently large sunspot is emerging over the sun's southeastern limb, right here. This could be the same sunspot that produced a near-X-flare on May 16th. The event, decribed below, could herald a period of renewed solar activity as the sunspot turns toward Earth.​

PARTIALLY ECLIPSED X-FLARE: Today, Earth-orbiting satellites detected an M9.6-class solar flare from a sunspot hiding behind the sun's southeastern limb. It was only percentage points away from being an X-flare. In fact, it probably was an X-flare partially eclipsed by the edge of the sun. SpaceWeather.com​

https://twitter.com/x/status/1658547154451849222

https://twitter.com/x/status/1658546381995270144

Although the underlying sunspot was hidden from view, it nevertheless managed to touch Earth. Radiation ionized the top of our planet's atmosphere, causing a deep shortwave radio blackout over North America

https://twitter.com/x/status/1658513927418814464

https://twitter.com/x/status/1658563700385632299

https://twitter.com/x/status/1658661526956285952

There are currently 7 numbered sunspot regions on the solar disk: AR3301, AR3302, AR3304, AR3305, AR3306, AR3307 and new region AR3308

Total number of sunspots has increased to 106 (36 of these are grouped into 7 active regions) NOAA forecasts for the next 24h: 75% chance for C flares, 25% chance for M flares and 5% chance for X flares. All regions have stable magnetic fields.

● Auroral Activity

The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 496.4 km/s (Elevated speed) at 10:53 UTC on May 16

Aurora Oval Bz: 3.36 nT North


● Current Conditions at 05:15 UTC on May 17

▪︎ Geospace quiet
▪︎ Geomagnetic conditions now : Kp 1
▪︎ Solar wind speed record: 433.2 km/sec (Elevated speed)
▪︎ density: 4.15 p/cm³ (low density)
▪︎ Neutron Counts today: -1.9% (below average)
▪︎ X-ray Solar Flare: C2 at 03:48 UTC
▪︎ Sunspot number: 106 (SN 103 May 16)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE ACTIVITY REPORT MAY 18_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C9.5 event observed at 21:48 UTC on May 7 from emerging sunspot region on the northeast.

https://twitter.com/x/status/1659022884969299968

https://twitter.com/x/status/1658991406793334786

There are currently 7 numbered sunspot regions on the solar disk: AR3301, AR3302, AR3305, AR3307, AR3308, and new regions AR3309, AR3310, AR3304 and AR3306 are gone.

Total number of sunspots has remained at 106 (36 of these are grouped into 7 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 25% chance for M flares and 5% chance for X flares. All regions have stable magnetic fields except AR3305 (N09W30) which is in a state of turmoil, with sub-spots rapidly appearing and disappearing. These instabilities could lead to solar flare activity. This sunspot now has a beta-gamma magnetic field that harbors energy for C-class flares.

● Auroral Activity

The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 456.9 km/s (Elevated speed) at 01:59 UTC on May 17

Aurora Oval Bz: 0.87 nT North


● Current Conditions at 03:40 UTC on May 18

▪︎ Geospace quiet
▪︎ Geomagnetic conditions now : Kp 1
▪︎ Solar wind speed record: 413.2 km/sec (Elevated speed)
▪︎ density: 1.68 p/cm³ (low density)
▪︎ Neutron Counts today: -1.2% (below average)
▪︎ X-ray Solar Flare: C8 at 21:48 UTC
▪︎ Sunspot number: 106 (SN 106 May 17)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 19_2023

Solar activity has been at high levels for the past 24 hours. Seven M-class flares were produced by AR3311 located on the northeast (N18E75)

●M1.0 at 06:26 UTC it caused a Minor R1 radio blackout over Central Asia.
●M1.2 at 06:56 UTC it caused a Minor R1 radio blackout over Central Asia.
●M2.2 at 11:47 UTC it caused a Minor R1 radio blackout over North Africa and Europe
●M1.9 at 12:13 UTC it caused a Minor R1 radio blackout over North Africa and Europe
●M1.6 at 12:49 UTC it caused a Minor R1 radio blackout over North Africa and Europe
●M1.1 at 17:51 UTC it caused a Minor R1 radio blackout over North America
●M3.8 at 20:23 UTC it caused a Minor R1 radio blackout over North Pacific Ocean.
●Finally an M4.4 at 21:05 UTC from an unnumbered region and caused a moderate R2 radio blackout over North Pacific Ocean

https://twitter.com/x/status/1659193331803385857

https://twitter.com/x/status/1659340023735410691

https://twitter.com/x/status/1659363583325601793

There are currently 8 numbered sunspot regions on the solar disk: AR3301, AR3302, AR3305, AR3307, AR3308, AR3309, AR3310, and new region AR3311

Total number of sunspots has increased to 121 (41 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 95% chance for C flares, 35% chance for M flares and 5% chance for X flares.

● Auroral Activity

The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 501 km/s (Moderately high speed) at 10:58 UTC on May 18

Aurora Oval Bz: -2.44 nT South


● Current Conditions at 05:50 UTC on May 19

▪︎ Geospace quiet
▪︎ Geomagnetic conditions now : Kp 1
▪︎ Solar wind speed record: 310.8 km/sec (Normal speed)
▪︎ density: 2.06 p/cm³ (low density)
▪︎ Neutron Counts today: -0.6% (below average)
▪︎ X-ray Solar Flare: M5 at 00:48 UTC
●M5.3 at 00:48 UTC from AR3311 it caused a Moderate R2 radio blackout over eastern Pacific Ocean

https://twitter.com/x/status/1659363585305214980

▪︎ Sunspot number: 121 (SN 106 May 18)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 20_2023

Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a M5 event observed at 00: 48 UTC from Region 3311 (N17E60).

Sunspot AR3311 is very active and in the past 24 hours has produced a large number of class-C flares and five class-M flares.

●M5.3 at 00:48 UTC it caused a Moderate R2 radio blackout over Pacific Ocean.
●M1.6 at 03:12 UTC it caused a Minor R1 radio blackout over Southeast Asia
●M2.5 at 05:00 UTC it caused a Minor R1 radio blackout over China
●M2.2 at 20:06 UTC it caused a Minor R1 radio blackout over North America
●M2.7 at 20:26 UTC it caused a Minor R1 radio blackout over North America

https://twitter.com/x/status/1659364793931780097

A CRACK IN EARTH'S MAGNETIC FIELD: A crack is opening in Earth's magnetic field as a region of negative BsubZ washes over our planet. This could be a sign that a CME is passing nearby. Minor geomagnetic storms are possible in the hours ahead. SpaceWeather.com​

INTENSIFYING SOLAR ACTIVITY: By the time you finish reading this, the sun will have probably flared again. Earth-orbiting satellites are detecting an almost non-stop fusillade of M-class flares so closely-spaced they overlap in time:​

Pulses of UV radiation are ionizing the top of Earth's atmosphere, creating a rolling series of shortwave radio blackouts around all longitudes of our planet. Ham radio operators may notice fluctuating loss of signal at frequencies below 20 MHz.

The source of these flares is a pair of sunspots rotating over the sun's eastern limb:

​

On the left is AR3310, which produced a powerful M9.6 flare on May 16th. On the right is AR3311, which has produced everything else. The flares will become increasingly geoeffective as the sunspots turn toward Earth this weekend. If current trends continue, there could be an X-flare, too. SpaceWeather.com

https://twitter.com/x/status/1659523934079860736

There are currently 9 numbered sunspot regions on the solar disk: AR3302, AR3305, AR3307, AR3308, AR3309, AR3310, AR3311 and new regions AR3312, AR3313,

Total number of sunspots has increased to 155 (55 of these are grouped into 9 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 25% chance for X flares. AR3311 has a beta-delta magnetic field that harbors energy for M-class and X-class flares.

● Auroral Activity

The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 465.6 km/s (Elevated speed) at 05:55 UTC on May 19 Active geomagnetic conditions (Kp4) threshold reached at 23:24 UTC

Aurora Oval Bz: -9.34 nT South


● Current Conditions at 04:25 UTC on May 20

▪︎ Moderate G2 geomagnetic storm in progress. Threshold Reached at 02:59
▪︎ Geomagnetic conditions now : Kp 6
▪︎ Solar wind speed record: 474.7 km/sec (Elevated speed)
▪︎ density: 7.91 p/cm³ (low density)
▪︎ Neutron Counts today: -0.3% (below average)
▪︎ X-ray Solar Flare: C6 at 22:04 UTC
▪︎ Sunspot number: 155 (SN 121 May 19)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Ca.]

X flare potential is ramping up. Earthquakes continue in the Loyalty Islands region. Sat update 5/20/2023

May 20, 2023

https://twitter.com/x/status/1659827918099591173

Speculations based on the past.

14,670 views May 20, 2023

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 21_2023

ALMOST X-FLARE Solar activity has been at high levels for the past 24 hours. The largest solar event of the period was a M8.8 event observed at 12: 35 UTC from Region 3311 (N18E47).

Sunspot AR3311 remains very active and in the last 24 hours has produced a large number of C-class flares and six M-class flares.

● M1.0 at 07:01 UTC it caused a Minor R1 radio blackout over Central Asia.
● M6.4 at 07:32 UTC it caused a Moderate R2 radio blackout over Central Asia.
● M1.6 at 10:54 UTC it caused a Minor R1 radio blackout over North Africa
● M8.8 at 12:35 UTC it caused a Moderate R2 radio blackout over West Africa North Atlantic Ocean
● M5.6 at 15:00 UTC it caused a Moderate R2 radio blackout over North Atlantic Ocean
● M1.1 at 19:03 UTC it caused a Moderate R1 radio blackout over North America

https://twitter.com/x/status/1659905349778829312

https://twitter.com/x/status/1659878666220740611

https://twitter.com/x/status/1659908300849270784

STRONG SOLAR FLARE ACTIVITY: New sunspot AR3311 is crackling with strong M-class solar flares. There have been five eruptions so far today and one almost reached category X. Each flare has caused a shortwave radio blackout with significant loss of signal below 20 MHz. SpaceWeather.com

There are currently 10 numbered sunspot regions on the solar disk: AR3302, AR3305, AR3307, AR3308, AR3309, AR3310, AR3311 AR3312, AR3313, AR3314,

Total number of sunspots has decreased to 138 (62 of these are grouped into 10 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 55% chance for M flares and 35% chance for X flares. Sunspot AR3311 has a delta-class magnetic field that harbors energy for X-class solar flares

● Auroral Activity

The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 607 km/s ( speed) at 20:18 UTC on May 20

Aurora Oval Bz: -4.54 nT South


● Current Conditions at 03:50 UTC on May 21

▪︎ Geomagnetic conditions now : Kp 3 (unsettled)
▪︎ Solar wind speed record: 473.5 km/sec (Elevated speed)
▪︎ density: 1.7 p/cm³ (low density)
▪︎ Neutron Counts today: -0.5% (below average)
▪︎ X-ray Solar Flare: M5 at 23:05 UTC
▪︎ Sunspot number: 138 (SN 155 May 19)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 22_2023

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2.5 event observed at 16:04 UTC from Region 3311 (N18E47). It caused a Minor R1 radio blackout over North Atlantic Ocean.

https://twitter.com/x/status/1660320592329940994

There are currently 8 numbered sunspot regions on the solar disk: AR3302, AR3305, AR3308, AR3310, AR3311 AR3312, AR3313, AR3314
AR3307, AR3309 are gone

Total number of sunspots has decreased to 138 (60 of these are grouped into 8 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 75% chance for M flares and 30% chance for X flares. Sunspot AR3311 has a beta-gamma-delta-class magnetic field that harbors energy for X-class solar flares


● Auroral Activity

The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 609 km/s (Moderately high speed) at 00:42 UTC on May 21. Active geomagnetic conditions (Kp4) threshold reached at 16:10 UTC.

Minor (G1) to Moderate (G2) geomagnetic storm conditions observed during the past 6 hours due to an enhanced solar wind environment. Geomagnetic storms periods

● Minor G1 geomagnetic storm (Kp5) threshold reached at 20:37 UTC
● Moderate G2 geomagnetic storm (Kp6)
threshold reached at 20:59 UTC
● Minor G1 geomagnetic storm (Kp5)
threshold reached at 21:36 UTC
● Moderate G2 geomagnetic storm (Kp6)
threshold reached at 23:58 UTC
● Minor G1 geomagnetic storm (Kp5)
threshold reached at 02:30 UTC

GEOMAGNETIC STORM UNDERWAY: A minor G1-class geomagnetic storm is underway on May 21st as Earth feels the effect of another probable near-miss CME. South-pointing magnetic fields in the CME's wake are opening a crack in Earth's magnetosphere, allowing solar wind to enter.
SpaceWeather.com

Aurora Oval Bz: -1.31 nT South


● Current Conditions at 04:00 UTC on May 22

▪︎ Geomagnetic Storm G1 in progress: Kp 5
▪︎ Solar wind speed record: 555.3 km/sec (Moderately high speed)
▪︎ density: 3.06 p/cm³ (low density)
▪︎ Neutron Counts today: -1.4% (below average)
▪︎ X-ray Solar Flare: C9 at 21:58 UTC
▪︎ Sunspot number: 140 (SN 138 May 21)
▪︎ Spotless Days 2023 total: 0 days (0%)
SpaceWeatherlive..com
SpaceWeather.com

 

[Puma]

SOLAR CYCLE 25 ACTIVITY REPORT MAY 23_2023

Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a M1.9 event observed at 13:37 UTC on May 22 from Region 3311 (N20E23). It caused a Minor R1 radio blackout over North Atlantic Ocean

https://twitter.com/x/status/1660645963038351362

https://twitter.com/x/status/1660696333328498709

https://twitter.com/x/status/1660821736718479366

There are currently 6 numbered sunspot regions on the solar disk: AR3308, AR3310, AR3311 AR3312, AR3313, AR3314
AR3302, AR3305, are gone

Total number of sunspots has decreased to 97 (48 of these are grouped into 6 active regions) NOAA forecasts for the next 24h: 99% chance for C flares, 60% chance for M flares and 20% chance for X flares. Sunspot AR3311 has a beta-gamma-delta-class magnetic field that harbors energy for X-class solar flares

● Auroral Activity

The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 628 km/s (Moderately high speed) at 17:40 UTC on May 22.

Aurora Oval Bz: 0.55 nT North


● Current Conditions at 04:10 UTC on May 23

▪︎ Geospace unsettled (kp 3)
▪︎ Solar wind speed record: 571 km/sec (Moderately high speed)
▪︎ density: 2.51 p/cm³ (low density)
▪︎ Neutron Counts today: -1.3% (below average)
▪︎ X-ray Solar Flare: C2 at 23:12 UTC
▪︎ Sunspot number: 97 (SN 140 May 22)
▪︎ Spotless Days 2023 total: 0 days (0%)
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