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 13 August 2018

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 225 Issued at 2200Z on 13 Aug 2018

IA.  Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: 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 (14 Aug, 15 Aug, 16 Aug).

IIA.  Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 442 km/s at 13/1217Z.

IIB.  Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (14 Aug) and quiet to active levels on days two and three (15 Aug, 16 Aug).

III.  Event probabilities 14 Aug-16 Aug
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           13 Aug 068
Predicted   14 Aug-16 Aug 068/068/068
90 Day Mean        13 Aug 071

V.  Geomagnetic A Indices
Observed Afr/Ap 12 Aug  006/006
Estimated Afr/Ap 13 Aug  005/005
Predicted Afr/Ap 14 Aug-16 Aug  006/005-009/012-013/015

VI.  Geomagnetic Activity Probabilities 14 Aug-16 Aug
A.  Middle Latitudes
Active                10/30/35
Minor Storm           01/10/20
Major-severe storm    01/01/05
B.  High Latitudes
Active                20/15/10
Minor Storm           20/25/25
Major-severe storm    10/40/50

NOAA/SEC Satellite Environment

GOES X-Ray Flux

Dst Geomagnetic Index Estimate

Auroral Activity Extrapolated from NOAA POES

Low:

Dst > -20 nT

Medium:

-20 nT > Dst > -50 nT

High:

High: -50 nT > Dst > -100 nT

Extreme:

Dst < -100 nT

SOHO CELIAS/MTOF Proton Monitor

ACE Solar Wind Real-Time Data



Note: Images and text on this page are provided by NASA/ESA SOHO website. Space Weather Today from NOAA's Space Environment Center.