A G1 (Minor) geomagnetic storm watch remains in effect for the 15 February UTC-day. Additionally, a G1 Watch is now in effect for 16 February. These watches are in response to geomagnetic reactions anticipated with effects of a transiting, glancing blow coronal mass ejection and the oncoming influence of a coronal hole high speed stream. If you want further details about our forecast, please visit swpc.noaa.gov or have a look at our forecast discussion and 3-day forecast. Both of these are updated twice a day at 0030 UTC (7:30 pm ET) and again at 1230 UTC (7:30 am ET). Click http://www.swpc.noaa.gov/products/forecast-discussion for the discussion and http://www.swpc.noaa.gov/products/3-day-forecast for the forecast.
A G1 (Minor) geomagnetic storm watch is in effect for 15 February, 2018. The G1 Watch has been issued due to the likely response associated with the arrival of an asymmetric halo coronal mass ejection (CME) glancing blow late on the 14 February to early 15 February UTC-days. The CME was first observed in SOHO/LASCO-C2 imagery at 0125 UTC on 12 February (8:25 pm ET on 11 February). Current background solar wind speeds are slower than routine model predictions, so the forecast arrival timing of the CME has been slowed from the WSA-Enlil CME model run prediction. Continue to check swpc.noaa.gov, our nation's official source for forecasts, watches, warnings, and alerts.
A C1 solar flare occurred at 0135 UTC (8:35pm ET) on 12 February 2018, from Region 2699. An asymmetric halo CME was observed in LASCO/SOHO imagery is association with this flare. SWPC forecasters are busy analyzying the imagery and studying model forecast results. Initial analysis indicates the CME is likely Earth-directed with a preliminary arrival of 15 February. Please keep checking swpc.noaa.gov - the nation's official source of forecasts, watches and warnings - for the latest updates and expectations regarding this event.
Region 2699 slowed it's growth and remained in a magnetically simple configuration (Beta); however, the region did erupt in a C8 Flare at 07/1347 UTC (0647am MT). Although the region managed to produce a flare just short of the R1 (Minor radio blackout) level, the region's flare probability will be likely be raised today, to keep a continued chance for C-class flares and a slight chance for M-class (R1-R2; Minor-Moderate radio blackouts) today. Keep checking our swpc.noaa.gov page for more information and updated forecasts.
Space weather has been quiet for some time now and there have been very few notable spot groups. However, over the past few days Region 2699 has continued to grow and become more interesting. Despite the growth, the region's magnetic complexity remains fairly simple and flare potential is weak; with a chance for C-class flares to continue over the next day or two. This spot group was the source for a C1 flare at 1858 UTC (1158 MT) today, 6 February. Continue to monitor flare and radio blackout probabilities by visiting our website swpc.noaa.gov Image courtesy of NASA.
Solar wind conditions temporarily favorable for geomagnetic storming. Overall planetary G1 storming reached at 5/1407 UTC (0907 ET). G2 Warning issued through 5/2100 UTC (1600 ET).