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Space Weather Guide   Note: Follow SpaceWeather on Twitter.    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 January 23-29 Category R2 (Moderate) radio blackouts were observed on 23 and 27 January due to flare activity from active sunspot Region 1402. A category S1 (Minor) solar radiation storm was observed on 23 January to the end of the summary period, a category S2 (Moderate) was observed on 23-25 and 27-29 January, and a category S3 (Strong) was observed on 23-24 January due to solar activity from active sunspot Region 1402. A category G1 (Minor) geomagnetic storm occurred on 24 January due to a coronal mass ejection. Outlook For February 1-7 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 3 February 2012 :Product: Report of Solar-Geophysical Activity :Issued: 2012 Feb 03 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 034 Issued at 2200Z on 03 Feb 2012 IA. Analysis of Solar Active Regions and Activity from 02/2100Z to 03/2100Z: Solar activity was at very low levels. The disk and limb was quiet and stable with no Earth-directed CMEs observed during the period. IB. Solar Activity Forecast: Solar activity is expected to be very low to low for the next three days (04 - 06 February). IIA. Geophysical Activity Summary 02/2100Z to 03/2100Z: The geomagnetic field was at quiet to unsettled levels with isolated high latitude active periods due to the waning effects of a geoeffective coronal hole high speed stream. During the period, ACE satellite observations indicated wind speeds averaged about 425 km/s while the Bz component of the interplanetary magnetic field varied between +/- 5 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at mostly quiet levels for the next three days (04 - 06 February). III. Event Probabilities 04 Feb-06 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 03 Feb 111 Predicted 04 Feb-06 Feb 110/110/105 90 Day Mean 03 Feb 141 V. Geomagnetic A Indices Observed Afr/Ap 02 Feb 003/007 Estimated Afr/Ap 03 Feb 006/008 Predicted Afr/Ap 04 Feb-06 Feb 004/005-005/005-004/005 VI. Geomagnetic Activity Probabilities 04 Feb-06 Feb A. Middle Latitudes Active 10/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01 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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