= NOW 18 WPM transition file follows =

Solar activity increased during the current reporting week, November
21 to 27. Average daily sunspot number rose to 155.7, and average
daily solar flux was 282.2.  Weekly Commentary on the Sun, the
Magnetosphere, and the Earths Ionosphere, November 28, 2024, by F.
K. Janda, OK1HH, After the unexpected solar proton flare of 21
November, which took place beyond the Suns western limb, a rain of
higher energy protons hit the Earths atmosphere. This solar
radiation storm had a greater impact at higher latitudes in the
southern hemisphere, where it caused a significant increase in
attenuation.  Two days later, two new large sunspot groups appeared
near the southeastern limb of the Sun. These produced moderate
eruptions daily, which is more or less normal for the 11 year
maximum. These are AR3905 and AR3906, which have grown rapidly to a
size where they can be observed with the naked eye.  There is a
relatively small coronal hole near them that could be influencing
the solar wind enhancement.  Following the eruption of a plasma
filament near AR3901, a G2 class geomagnetic storm is possible on
November 28 and 29, when a CME is expected to impact. However,
around 1900 UT on November 28, when this information is written as
usual, nothing is still happening. We will see what happens next. It
is quite possible that the plasma cloud will only hit the Earth a
little and it is also not out of the question that it will miss the
Earth completely. So, any prediction at this point has a low
probability of coming true.  Links to articles from the Dr. Tamitha
Skov, WX6SWW, ARRL informational pages, solar indices, and solar
information can be found in teleprinter, packet, and Internet
versions of 2024 Propagation Forecast Bulletin ARLP046.  Send your
tips, reports, observations, questions and comments to k7ra at
arrl.net. When reporting observations, dont forget to tell us which
mode you were operating.  Sunspot numbers were 148, 170, 156, 164,
140, 163, and 141, with a mean of 155.7. 10.7 cm flux was 166.2,
179.1, 199.9, 202.7, 220.4, 222.3, and 225, with a mean of 202.2.
Estimated planetary A indices were 8, 12, 8, 7, 11, 7, and 5, with a
mean of 8.3. Middle latitude A Index was 5, 10, 7, 7, 9, 6, and 3,
with a mean of 6.7.

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