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Space Weather Guide    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 Summary For October 26-November 1 No space weather storms were observed. Outlook For November 4-10 No space weather storms are expected. For current space weather conditions see: Space Weather Now, Today's Space Weather and Space Weather Alerts   Joint USAF/NOAA Report of Solar and Geophysical Activity 04 Nov 2009 :Product: Report of Solar-Geophysical Activity :Issued: 2009 Nov 04 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 Report of Solar and Geophysical Activity SDF Number 308 Issued at 2200Z on 04 Nov 2009 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity was very low. No spotted regions appear on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled on day 1 (5 November) due to possible effects from the CME of 31 October. Quiet conditions will return on day 2 and 3 (6-7November). III. Event Probabilities 05 Nov-07 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Nov 071 Predicted 05 Nov-07 Nov 070/070/070 90 Day Mean 04 Nov 071 V. Geomagnetic A Indices Observed Afr/Ap 03 Nov 001/000 Estimated Afr/Ap 04 Nov 008/008 Predicted Afr/Ap 05 Nov-07 Nov 008/008-005/005-007/007 VI. Geomagnetic Activity Probabilities 05 Nov-07 Nov A. Middle Latitudes Active 15/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 30/10/20 Minor storm 20/01/05 Major-severe storm 05/01/01 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.

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