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May 2
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May 2, 2016 @ 00:05 UTC
Aurora Watch
Minor solar wind enhancements including periods of southward Bz is contributing to elevated geomagnetic activity at higher latitudes. Sky watchers at higher latitudes should be alert for visible aurora should local light and weather conditions allow.

UPDATE @ 09:00 UTC: A brief period of Moderate (G2) storming was reported at very high latitudes. Conditions should gradually return to quieter levels during the next 24 hours.

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2016 May 02 0520 UTC
Synoptic Period: 0300-0600 UTC
Active Warning: Yes
NOAA Scale: G2 - Moderate

April 28, 2016 @ 09:10 UTC
Solar Update
Good morning. Here is an updated look at the visible solar disk on Thursday morning. A number of smaller sized sunspot groups are currently visible, however only minor C-Flares are being detected for the time being. Region 2537 in the southwest quadrant is showing signs of gradual growth and should be monitored. There will remain a chance for minor C-Flares and depending on spot development, a smaller chance for an isolated M-Flare.

A minor (G1) geomagnetic storm watch is in effect for late on April 29th and into April 30th. A coronal hole stream is expected to become geoeffective and could disturb our geomagnetic field. More updates this weekend. Stay tuned to SolarHam.com for the latest spaceweather 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 and the U.S. Air Force.
UPDATED 2016 May 2 1230 UTC

.24 hr Summary...
Solar activity was at low levels. Region 2540 (N21E31, Hrx/alpha)
produced the strongest flare of the period, a C3 flare at 02/0842 UTC.
Accompanying the flare was a Type II radio sweep (est. shock velocity of
1,800 km/s). A CME was observed in SOHO/LASCO C2 imagery beginning at
02/0912 UTC that appears to be associated with the event. Additional
analysis is being conducted to determine if an Earth-directed component
is present. No other CMEs were observed in available coronagraph
imagery.

Sunspots on the disk were either stable or in decay. Region 2540
decreased in area and was nearly plage by the end of the period. Region
2539 (N16E15, Eai/beta) exhibited dissipation of umbral area in its
intermediate spot. Region 2536 (N16W18, Dai/beta) displayed minor decay
in its leader spot.

.Forecast...
Solar activity is expected to be at very low levels with a chance for
C-class flares all three days of the forecast period (02-04 May). Old
active Region 2529 (N10, L=344) is due to return on 03 May. On its
previous transit across the disk, the region produced numerous C-class
activity and was an M-class producer.

[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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