[ips-sf] ASWFC Summary Forecast for 23 April - issued 2323UT/22-Apr-2023 [SEC=OFFICIAL]

[rwc]

Solar activity on UT day 23-Apr is expected to be at the R0 level,
with a chance of R1. An Earth-directed halo CME first observed on
21-Apr is expected to impact Earth's magnetosphere late on 23-Apr.
G2-G3 geomagnetic conditions are expected once the CME arrives. A mild
enhancement in the proton flux has been observed overnight, with a
chance of S1 conditions on 23-Apr. The solar wind is expected to be
light to moderate. Maximum usable frequencies (MUFs) are expected to
be near predicted monthly values. HF radio communication conditions
are expected to be normal until the CME arrival, with some
degradations possible during local night hours.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au