:Product: 0315RSGA.txt
:Issued: 2019 Mar 15 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 74 Issued at 2200Z on 15 Mar 2019

IA.  Analysis of Solar Active Regions and Activity from 14/2100Z to
15/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be very low
on days one, two, and three (16 Mar, 17 Mar, 18 Mar).

IIA.  Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 414 km/s at 15/1358Z. Total IMF reached 8
nT at 15/0601Z. The maximum southward component of Bz reached -6 nT at
15/0124Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 276 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (16 Mar, 17 Mar)
and quiet levels on day three (18 Mar).

III.  Event probabilities 16 Mar-18 Mar
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           15 Mar 070
Predicted   16 Mar-18 Mar 070/070/070
90 Day Mean        15 Mar 071

V.  Geomagnetic A Indices
Observed Afr/Ap 14 Mar  006/006
Estimated Afr/Ap 15 Mar  007/008
Predicted Afr/Ap 16 Mar-18 Mar  007/008-008/008-006/005

VI.  Geomagnetic Activity Probabilities 16 Mar-18 Mar
A.  Middle Latitudes
Active                10/15/10
Minor Storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           25/25/20
Major-severe storm    20/25/15