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01. X6.9
02. X5.4
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The Sun Today : Updated March 28, 2017

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Solar Flare Risk
M-Class: 15%
X-Class: 01%

Active Watches
Geomag. Storm    YES
Radiation Storm    NO

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Status
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Status

3-Day Geomagnetic Forecast [Details]
March 28
March 29
March 30
6 (G2)
Max Kp
6 (G2)
Max Kp
5 (G1)
Max Kp
Prob-M 35%
Prob-H 75%
Prob-M 30%
Prob-H 70%
Prob-M 20%
Prob-H 50%

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SolarHam is routinely updated with breaking news, sometimes hours before other Space News websites. You can trust SolarHam.com for the most up to date and accurate solar information on the internet.

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  AVERAGES | FEB. Solar Flux 76.9 | Sunspots 22.0 | Flare Max C4.1

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Latest Space Weather News and Updates
March 27, 2017 @ 20:10 UTC
Moderate Geomagnetic Storm
Moderate (G2) geomagnetic storm conditions is again being observed at higher latitudes thanks to a solar wind stream around 700 km/s. Sky watchers across northern Europe, Scandinavia and the UK should be alert for visible aurora this evening. Sky watchers across the northern tier USA and Canada should be alert later tonight.

The image below is courtesy of Sandee Rice who captured the nice aurora shot last night from Alaska. Thanks for sharing!

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2017 Mar 27 1948 UTC
Synoptic Period: 1800-2100 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate

March 27, 2017 @ 09:30 UTC
High Speed Solar Wind Update
As expected, a high speed solar wind stream containing a sector of negative Bz has reached Earth. Geomagnetic storming is being observed at higher latitudes and this could continue over the next few days. Sky watchers should be alert for visible aurora while it is still dark outside.

March 26, 2017 @ 19:15 UTC
Sunspot 2644 / Geomagnetic Storm Watch
Good afternoon. Here is a look at new sunspot 2644 as it continues to form in the northeast quadrant. So far the region is mostly stable, but could soon produce minor C-Class solar flares. More updates about this region whenever necessary.

A reminder that a minor (G1) to moderate (G2) geomagnetic storm watch will be in effect beginning Monday when a coronal hole stream is expected to reach Earth. Sky watchers at middle to high latitudes should be alert for visible aurora within the next 48-72 hours.

Stay tuned to SolarHam.com where you will find the most up to date spaceweather news, data and imagery.

March 25, 2017 @ 04:00 UTC
Another Coronal Hole Stream Expected
Just as one coronal hole stream begins to slow down, another one is expected to kick into gear by March 27th. Coronal Hole #73 will turn into an Earth facing position and possibly bring another round of geomagnetic storming. Aurora sky watchers should again be alert for another show. Image below courtesy of SDO/AIA.

Stay tuned to SolarHam.com where you will find the most up to date spaceweather news, data and imagery.


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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 March 28 0030 UTC

.24 hr Summary...
Solar activity was at low levels due to occasional C-class flares.
Region 2644 (N13E17, Dai/beta-gamma) grew further as it gained area and
spots. There were mixed polarities among the intermediate spots and some
minor magnetic shear present. The region produced a C1/1f flare at
27/0000 UTC and frequent B-class flares afterwards. New Region 2645
(S09E59, Cso/beta) emerged and was assigned this period. Limb
foreshortening prevented a better analysis, however, the region was
unstable and underwent continued slow growth. The region produced
occasional C-class flares, to include the largest flare of the period, a
C5/Sf at 27/1820 UTC. Region 2646 (N06W60, Hrx/alpha) emerged and was
assigned, but was inactive.

A narrow cone CME first seen in SOHO/LASCO-C2 imagery at 27/1212 UTC was
associated with a C3/Sf from Region 2645 at 27/1112 UTC. Analysis of
SDO/AIA imagery indicated the CME appeared to be on a more eastern
trajectory and is not expected to have an Earth-directed component.

.Forecast...
Solar activity is expected to be low, with C-class flares likely, and a
slight chance of M-class flares (R1-R2, Minor-Moderate) the next two
days (28-29 Mar) due to the instability and flare probabilities of
Regions 2644 and 2645. Solar activity is expected to be very low, with
C-class flare probability expected to decrease to a chance, with a
slight chance of M-class flares continuing into day three (30 Mar) as
Region 2646 rotates beyond the limb.


[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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