Tällä sivulla voit lukea NOAA SWPC:n julkaisemat kommentit auringon havaitusta aktiivisuudesta edellisen vuorokauden kohdalta sekä muutaman seuraavan vuorokauden kattavan ennusteen. Uusin alkuperäinen julkaisu on luettavissa täällä. Tiedot päivittyvät kaksi kertaa vuorokaudessa.
Solar activity was very low. Region 3147 (S11, L=172) rotated off the visible disk. Regions 3149 (N21W83, Hsx/alpha), 3151 (S16W73, Cso/beta) and 3152 (N27W05, Bxo/beta) were stable and in decay. A filament/prominence eruption occurred from along the southeast limb beginning near 28/2049 UTC as seen in GOES/SUVI 304A imagery. SOHO/LASCO coronagraph imagery has yet to update, so no analysis of any likely CME from this event can be conducted as of this report. While, the location of this event makes an Earth-directed component unlikely, once coronagraph imagery updates, analysis and modeling will be conducted.
Solar activity is expected to be very low with a chance for C-flares through 01 Dec.
Earth remained under the influence of a positive polarity CH HSS. Solar wind speeds started the day around 540 km/s and increased to near 660 km/s. Total field strength peaked at 9 nT and Bz deviated southward early and late in the day, reaching a maximum southward deviation of -10 nT at 28/0033 UTC.
An enhanced solar wind environment is expected to last through 01 Dec due to the influences of multiple positive polarity CH HSSs.
The geomagnetic field reached G1 (Minor) geomagnetic storming levels while under the influence of a positive polarity CH HSS.
Unsettled to active conditions are expected through 29 Nov with ongoing CH HSS (+) activity, along with the anticipated arrival of another positive polarity CH HSS. Isolated G1 (Minor) storming is also possible. A third CH HSS is forecast to arrive on Day 3 (01 Dec) with stronger winds, prompting a G1 (Minor) geomagnetic storm Watch.