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Current Auroral Oval:

Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 4 unsettled

Interplanetary Mag. Field
Btotal: 7.8 nT
Bz: 4.5 nT north
Updated: Today at 0646 UT
Coronal Holes: 16 Apr 22

Solar wind flowing from this coronal hole should reach Earth on April 17-18. Credit: SDO/AIA
SOMETHING FLARE-Y THIS WAY COMES: A potentially large and very active sunspot group is about to emerge over the sun's northeastern limb. For the past week it has been hurling CMEs and plumes of plasma into space from its location on the farside of the sun. Now, it is turning toward Earth. The leading edge of the sunspot group can already be seen right here.

https://spaceweathergallery.com/submissions/pics/e/Efrain-Morales-Rivera-SUN-2022-04-15-1613-1755UT-Ha_EMr_1650071091_lg.gif
Sun
Today's close-up images in H-alpha, Ca-K, and continuum.

Taken by Howard Eskildsen on April 15, 2022 @ Ocala, Florida, USA
Sun
Today's close-up images in H-alpha, Ca-K, and continuum.

Taken by Howard Eskildsen on April 15, 2022 @ Ocala, Florida, USA
🔥Solar wind
speed: 570.5 km/sec
density: 10.5 protons/cm3
Updated: Today at 0700 UT

X-ray Solar Flares
6-hr max: C8 0319 UT Apr18
24-hr: M4 2234 UT Apr17
Updated: Today at: 0705 UT
Daily Sun: 18 Apr 22

Sunspot complex AR2993-94 poses a continued threat for X-class solar flares, while sunspot AR2992 is suddenly crackling with M-flares. Credit: SDO/HMI
Current Auroral Oval:

Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3 quiet

Interplanetary Mag. Field
Btotal: 5.7 nT
Bz: 2.4 nT north
Updated: Today at 0700 UT
Coronal Holes: 18 Apr 22

Earth is inside a stream of solar wind flowing from the indicated coronal hole. . Credit: SDO/AIA
X-CLASS SOLAR FLARE AND CME: Spoiler alert: The CME won't hit Earth. On April 17th, sunspot complex AR2993-94 appeared and promptly exploded. NASA's Solar Dynamics Observatory recorded the X1-class solar flare.

https://www.spaceweather.com/images2022/17apr22/2_xflare_anim_crop_strip_opt.gif

A pulse of X-rays from the flare produced a strong shortwave radio blackout over southeast Asia and Australia: map. Mariners, aviators, and ham radio operators may have noticed unusual propagation effects at frequencies below 30 MHz.
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Active sunspot group AR2993-94 on April 18th. Photo credit: Karzaman Ahmad of the Langkawi National Observatory in Malaysia
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MORE SUNSPOTS ARE COMING: Active sunspot complex AR2993-94, which unleashed an X1-flare on April 17th, may be just the beginning. NASA's STEREO-A spacecraft is monitoring another potentially large active region right behind it. Stay tuned for more sunspots emerging over the sun's northeastern limb later today or tomorrow.

https://www.spaceweather.com/images2022/17apr22/xcme_anim_opt.gif
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Solar wind
speed: 514.0 km/sec
density: 7.2 protons/cm3
Updated: Today at 0921 UT

X-ray Solar Flares
6-hr max: C3 1406 UT Apr19
24-hr: M1 1724 UT Apr18
Updated: Today at: 1635 UT
Daily Sun: 19 Apr 22

A new sunspot is emerging at the circled location. Credit: SDO/HMI
Current Auroral Oval:

Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3 quiet

Interplanetary Mag. Field
Btotal: 4.6 nT
Bz: 4.0 nT north
Updated: Today at 0859 UT
Coronal Holes: 19 Apr 22

Earth is inside a stream of solar wind flowing from the indicated coronal hole. . Credit: SDO/AIA
SUNSPOT SUNSETS: Solar Cycle 25 is changing the way sunsets look. It is adding some spots. "Active sunspot complex AR2993-94 was visible yesterday at sunset," says Marek Nikodem, who sends this picture from Szubin, Poland.

"Distance to the city visible on the horizon: 24 kilometers," says Nikodem. "Distance to sunspots: 150 million kilometers. Such is the scale of the Solar System! Unfortunately, the sky turned out to be partially cloudy, which made it impossible to photograph the full sun disc. Still, it was a stunning sight."
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CHANCE OF FLARES TODAY: NOAA forecasters say there is a 75% chance of M-class solar flares today, April 19th, and a 25% chance of powerful X-flares. The most likely source would be sunspot complex AR2993-94, which is crackling with flares as it turns toward Earth.
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