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3 Day Geomagnetic Forecast
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July 2 |
July 3 |
July 4
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2-3 (G0)
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5-6 (G2)
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5-6 (G2)
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Max Kp |
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M-Lat
10%
H-Lat
20% |
M-Lat
20%
H-Lat
45% |
M-Lat
20%
H-Lat
20% |
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Probabilities |
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Latest SWPC Forecast (@ 00:30 + 12:30 UTC)

Current Moon Phase:
96% Illumination
Waning Gibbous
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Noteworthy Flare Events (Past 72h)
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M4.2 |
AR 4479 |
7/2/26 @
01:56 UTC |
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M8.5 |
AR 4478 |
7/1/26 @
23:09 UTC |
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M3.5 |
AR 4479 |
7/1/26 @
19:43 UTC |
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M2.6 |
AR 4479 |
7/1/26 @
14:55 UTC |
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M2.5 |
AR 4479 |
7/1/26 @
08:17 UTC |
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X1.1 |
AR 4479 |
6/30/26 @
20:50 UTC |
| Type II RE
(1496 km/s)
IV
DIM
10cm Radio Burst
(9m, 409 sfu) |
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M5.8 |
AR 4475 |
6/30/26 @
12:57 UTC |
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Visible Sunspot Regions

Updated @ 13:30 UTC (July 2)

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Global D-LAYER Absorption
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Current Solar Flare Threat
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C-Flare: 90%
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M-Flare: 70%
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X-Flare: 20%
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Proton: 20%
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Geomagnetic Field and Aurora |
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Past 24 Hours |
Unsettled |
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Latest Space Weather News
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Moderate (G2) Storm Watch Issued
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July 1, 2026 @ 13:10 UTC
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A moderate (G2) geomagnetic storm watch has been issued by NOAA/SWPC beginning July 3rd. A coronal mass ejection (CME) that left the Sun on Tuesday following an X1.1 solar flare around AR 4479 is predicted to sweep past Earth. More updates in the days ahead.
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X-Flare, Partial Halo CME
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June 30, 2026 @ 21:20 UTC (UPDATED)
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Earth facing sunspot region 4479 just erupted with an X1.1 solar flare at 20:50 UTC (June 30). The event is associated with a type II radio emission with an estimated velocity of 1496 km/s, along with a 10cm Radio Burst (TenFlare) measuring 409 solar flux units (sfu) and lasting 9 minutes. Coronal dimming is now evident meaning the chances for an Earth directed coronal mass ejection (CME) will be at an increased level. More details to follow.
CME Update: A partial halo CME is associated with the X1.1 solar flare around AR 4479 on Tuesday. The main bulk of plasma is heading to the north, however with a partial halo signature present, an Earth impact is expected by July 3rd according to a new model released by NASA. I would expect a minor (G1) geomagnetic storm watch to be put in place with a chance for moderate (G2) storming as well. More updates to follow once an updated CME tracking model and forecast is released by NOAA/SWPC.


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M5.8 Solar Flare
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June 30, 2026 @ 13:30 UTC
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A solar flare measuring M5.8 was observed around AR 4475 peaking at 12:57 UTC (June 30). So far it does not appear to be the source of a noteworthy coronal mass ejection (CME).
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Incoming CME Detected
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June 30, 2026 @ 11:50 UTC (UPDATED)
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The edge of a slow moving CME observed leaving the Sun on June 26th has finally been detected. A passage past our planet should be expected within the next hour or so. The solar wind speed only increased to around 440 km/s, although there was a noticeable increase in plasma density and strength (Bt). More to follow whenever necessary.
UPDATE: Magnetometers are showing an impact to Earth's geomagnetic field at 11:53 UTC (June 30). Although not a strong impact, we will wait to see what happens, especially with the Bz component of the interplanetary magnetic field (IMF).

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Space Weather Update
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June 29, 2026 @ 12:40 UTC
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Below is an updated look at the two big sunspot regions facing Earth on Monday. Of the two, AR 4479 appears to be more magnetically complex and has been the main source of minor C-Flares so far today. There will remain a chance for a moderate M-Flare during the next 24 hours.
Speaking of M-Flares, the ESA solar orbiter did detect an M4 flare off the farside of the Sun today and the source may have been another large sunspot forming that is visible in their latest imagery.
A minor (G1) geomagnetic storm watch is now in effect for the next 24 hours due to the expected arrival of a slow moving CME that left the Sun on June 26th. More updates will be provided whenever necessary.

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CME Alert
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June 27, 2026 @ 03:10 UTC (UPDATED)
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This event is a little sneaky, however a slow moving coronal mass ejection (CME) was observed leaving the Sun following an event beginning around 20:15 UTC (June 26). At first it would seem that the eruption originated from either the farside of the Sun or the southern pole region, however STEREO-Ahead imagery shows it to be more of an Earth facing event. Coronal dimming is evident using the Solar Demon website in the vicinity of AR 4475 in the southern hemisphere. While the majority of plasma is heading south of the Sun-Earth line, the northern edge may be Earth directed. If so, a passage may be possible within 72-96 hours due to the slow moving nature of this event. More details to follow whenever necessary.
UPDATE: As per the latest NOAA/SWPC update, the slow moving CME is expected to pass mostly south of the Sun-Earth line with a glancing blow possible by June 30th. More updates in the days ahead whenever necessary.

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Space Weather Update
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June 26, 2026 @ 12:55 UTC
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Below is an updated look at AR 4478 on Friday as seen by SDO/HMI. The sunspot cluster only manged low to mid level C-Flares so far today, but will remain an ongoing threat for an M-Class solar flare (50%). Elsewhere, AR 4475 located near center disk chipped in with a few minor C-Flares as well. Overall, there is about a 10% chance for a strong X-Class flare according to the latest NOAA/SWPC update.

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