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sci.geo.meteorology (Meteorology) (sci.geo.meteorology) For the discussion of meteorology and related topics. |
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"Solar activity was very low. No flares were observed during the past 24
hours. The solar disk remains spotless." :Product: Report of Solar-Geophysical Activity :Issued: 2009 May 08 2201 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 128 Issued at 2200Z on 08 May 2009 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. The solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was quiet to active, with active periods from 0000 to 0900 UTC. Solar wind velocities declined from 520 to 460 km/s during the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled with isolated periods of active conditions on day 1 (May 09) and quiet to unsettled for days 2 and 3 (May 10-11). III. Event Probabilities 09 May-11 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 08 May 071 Predicted 09 May-11 May 072/072/072 90 Day Mean 08 May 069 V. Geomagnetic A Indices Observed Afr/Ap 07 May 007/010 Estimated Afr/Ap 08 May 010/010 Predicted Afr/Ap 09 May-11 May 007/008-005/005-005/005 VI. Geomagnetic Activity Probabilities 09 May-11 May A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01 |
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