:Product: Forecast Discussion
:Issued: 2026 Apr 11 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Solar Activity

.24 hr Summary...
Solar activity was at very low levels. Only B-class X-ray activity was
observed from the three spotted active regions on the visible disk.
Region 4416 (N19E13, Dro/beta) was the only region to exhibit growth. No
Earth-directed CMEs were observed in available coronagraph imagery.

.Forecast...
Solar activity is expected to be at low levels on 11-13 Apr.

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at high levels with a peak flux
of 1,713 pfu at 10/1430 UTC. The greater than 10 MeV proton flux was at
background levels.

.Forecast...
The greater than 2 MeV electron flux is expected to be at moderate to
high levels over 11-13 Apr. The greater than 10 MeV proton flux is
expected to remain at background levels.

Solar Wind

.24 hr Summary...
Solar wind parameters, as measured by the ACE spacecraft, suggested the
continued influence of a positive polarity CH HSS. Total magnetic field
strength ranged from 2-17 nT and the Bz component briefly reached as far
south as -9 nT. Solar wind speeds steadily increased from ~375 km/s to
~645 km/s over the past 24 hours. Phi angle was predominantly oriented
in the positive solar sector after 10/0600 UTC.

.Forecast...
Solar wind parameters are expected to remain enhanced over 11-13 Apr due
to +CH HSS effects.

Geospace

.24 hr Summary...
The geomagnetic field reached active levels under the influence of a
positive polarity CH HSS.

.Forecast...
Periods of G1 (Minor) storm levels are expected on 11 Apr due to +CH HSS
influences. Periods of active conditions are likely on 12 Apr, and
unsettled levels on 13 Apr, as +CH HSS influences wane.