The noon measurement of 141.1 is the official reading for the day. Solar flux for the near term is expected to peak around 205 on Wednesday or Thursday, March 1 and 2, then decline to below 170 by March 9, and bottom out near 130 around March 23 or 24. Planetary A index has been rising, due to a well-placed coronal hole streaming charged particles toward the earth. Conditions may be disturbed again around March 4 and 5, and fairly quiet between March 13-20. These projections are based upon sunspots and coronal holes moving across the visible solar surface, as the sun rotates relative to earth every 27.5 days.
Various features grow and fade with time, and new areas appear.
Some are oriented toward earth and have a large effect, while others do not. The coronal hole that is causing the current geomagnetic disturbance has been visible for the last seven solar rotations. Doug Brandon, N6RT wrote to ask about the URL for Cary Oler's Solar Terrestrial Dispatch web site, which seemed to disappear some time back. Doug did some detective work, and found that it had moved. George Jacobs, W3ASK has an interesting item in his propagation column in the March issue of CQ Magazine concerning equinoctial propagation.