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01. X9.3
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The Sun Today : Updated October 24, 2017

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M-Class: 05%
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Geomag. Storm    YES
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3-Day Geomagnetic Forecast [Details]
October 24
October 25
October 26
5 (G1)
Max Kp
6 (G2)
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Prob-M 25%
Prob-H 65%
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Latest Space Weather News and Updates
October 23, 2017 @ 01:00 UTC
Moderate Geomagnetic Storm Watch Added
Coronal Hole #37 is now facing Earth. A high speed solar wind stream flowing from this zone is expected to reach Earth by Tuesday (Oct 24). Minor (G1) to Moderate (G2) geomagnetic storming is now in the forecast for locations at higher latitudes. Aurora sky watchers should be alert during the middle of the upcoming week. More updates in the days ahead. Image below courtesy of SDO/HMI.

October 22, 2017 @ 00:00 UTC
Sunspot Returns
Newly assigned region 2685 is now turning into view off the southeast limb. This is the return of region 2682 (Sept 24 - Oct 6) and before that the once behemoth region 2673 (Aug 29 - Sept 10). The region appears magnetically simple and is likely not a threat for noteworthy solar flares. Image below courtesy of SDO/HMI.

October 21, 2017 @ 00:15 UTC
M-Flare / 2682 Returns
Surprise! Solar activity is now at moderate levels. A low level M-Flare (M1.1) was just observed at 23:28 UTC (Oct 20) around the remnants of old region 2682, now turning into view off the southeast limb. This is the same region that was previously numbered 2673 in September and produced a number of X-Class solar flares. X-Flares are likely not to be expected, however more updates to follow in the days ahead whenever necessary. Image courtesy of SDO/AIA.


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REPORTS AND FORECAST | 30 Day DSD | Data Warehouse


Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center.
UPDATED 2017 Oct 24 0030 UTC

.24 hr Summary...
Solar activity was very low with no flares observed. Region 2685
(S09E45, Hax/alpha) changed little and was inactive. Region 2686
(N12E67, Hax/alpha) underwent some decay and was also inactive. No
Earth-directed CMEs were observed in available coronagraph imagery.

.Forecast...
Solar activity is expected to remain very low, with a decreasing chance
of C-class flares on days one and two (24-25 Oct) and only a slight
chance for C-class flares by day three (26 Oct) as Region 2686 continues
to decay and Region 2685 remains stable or undergoes slight dissipation.

[Report of Solar-Geophysical Activity]

NOAA SUNSPOT SUMMARY | SolarHam Sunspot Summary

A - Alpha (single polarity spot).
B - Beta (bipolar spot configuration).
G - Gamma (atypical mixture of polarities).
BG - Beta-Gamma (mixture of polarities in a dominantly bipolar configuration).
D - Delta (opposite polarity umbrae within single penumbra).
BD - Beta with a Delta configuration.
BGD - Beta-Gamma with a Delta configuration.

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