:Product: 0611RSGA.txt
:Issued: 2024 Jun 11 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
#
Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 163 Issued at 2200Z on 11 Jun 2024

IA.  Analysis of Solar Active Regions and Activity from 10/2100Z to
11/2100Z: Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C9 event observed at
11/0443Z from Region 3697 (S19W0*). There are currently 6 numbered
sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (12 Jun, 13 Jun, 14 Jun).

IIA.  Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 720 km/s at 11/0233Z. Total IMF reached 10
nT at 10/2110Z. The maximum southward component of Bz reached -9 nT at
10/2357Z.  Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 2 pfu at 10/2105Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 131 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (12 Jun) and quiet levels
on days two and three (13 Jun, 14 Jun). Protons have a slight chance of
crossing threshold on days one, two, and three (12 Jun, 13 Jun, 14 Jun).

III.  Event probabilities 12 Jun-14 Jun
Class M    50/50/50
Class X    10/10/10
Proton     10/10/10
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           11 Jun 165
Predicted   12 Jun-14 Jun 165/160/155
90 Day Mean        11 Jun 175

V.  Geomagnetic A Indices
Observed Afr/Ap 10 Jun  011/012
Estimated Afr/Ap 11 Jun  015/017
Predicted Afr/Ap 12 Jun-14 Jun  008/008-005/005-006/005

VI.  Geomagnetic Activity Probabilities 12 Jun-14 Jun
A.  Middle Latitudes
Active                25/10/10
Minor Storm           05/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           30/20/20
Major-severe storm    30/20/20