Space Weather Guide

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What is Space Weather?

Most of the time space, weather is of little concern in our everyday lives. However, when the space environment is disturbed by the variable output of particles and radiation from the Sun, technologies that we depend on in our daily life, in space orbit as well as on the ground, can be affected. Some of the most dramatic space weather effects occur in association with eruptions of material from the solar atmosphere into interplanetary space. Thus, our space weather is a consequence of the behavior of the Sun, the nature of Earth's magnetic field and atmosphere, and our location in the solar system. The increasing deployment of radiation -current- and field sensitive technological systems over the last few decades and the increasing presence of complex systems in space combine to make society more vulnerable to solar-terrestrial disturbances. This has been emphasized by the large number of problems associated with the severe magnetic storms between 1989 and 1991 as the 11 year solar activity cycle peaked.

SOHO Real-time View of the Sun

Space Weather Outlook

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast 15 June 2019

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 166 Issued at 2200Z on 15 Jun 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 Jun, 17 Jun, 18 Jun).

IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 435 km/s at 14/2103Z. Total IMF reached 6 nT at 15/1025Z. The maximum southward component of Bz reached -5 nT at 15/1026Z.

IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (16 Jun) and quiet to active levels on days two and three (17 Jun, 18 Jun).

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

IV. Penticton 10.7 cm Flux
Observed           15 Jun 067
Predicted   16 Jun-18 Jun 067/067/067
90 Day Mean        15 Jun 072

V. Geomagnetic A Indices
Observed Afr/Ap 14 Jun 013/008
Estimated Afr/Ap 15 Jun 005/005
Predicted Afr/Ap 16 Jun-18 Jun 007/008-010/012-010/012

VI. Geomagnetic Activity Probabilities 16 Jun-18 Jun
A. Middle Latitudes
Active                15/25/25
Minor Storm           05/05/05
Major-severe storm    01/01/01
B. High Latitudes
Active                15/20/20
Minor Storm           20/30/30
Major-severe storm    20/25/25