:Product: Forecast Discussion
:Issued: 2026 Apr 11 1230 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Solar Activity

.24 hr Summary...
Solar activity reached low levels. Region 4416 (N19E08, Dao/beta)
exhibited minor growth and produced a C1.1/Sf flare at 11/1024 UTC.
Region 4414 (N15E32, Cro/beta) added a rudimentary trailer spot, while
the remaining region was stable. No Earth-directed CMEs were observed in
available coronagraph imagery.

.Forecast...
Solar activity is expected to be very low with a chance for additional
C-flares over 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 normal to
moderate levels on 11-12 Apr, with high levels likely on 13 Apr. The
greater than 10 MeV proton flux is expected to remain at background
levels.

Solar Wind

.24 hr Summary...
Solar wind parameters suggested the continued influence of a positive
polarity CH HSS. Total magnetic field strength ranged from 2-12 nT and
the Bz component briefly reached as far south as -9 nT. Solar wind
speeds ranged between ~475-650 km/s throughout the period. Phi angle was
predominantly oriented in the positive solar sector.

.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 likely on 11 Apr due to +CH HSS
influences. Periods of active conditions are likely on 12 Apr, with
quiet to unsettled levels likely on 13 Apr, as +CH HSS influences wane.