This message is a joint product of the NOAA Space Weather Prediction Center(SWPC) and the USAF Weather Agency Space Weather Operation Center (AFWA/XOGX, located at Offutt AFB, NE)
:Product: Report of Solar-Geophysical Activity :Issued: 2017 Jul 27 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 Solar Geophysical Activity Report and Forecast SDF Number 208 Issued at 2200Z on 27 Jul 2017 ===================================================================== IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: 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 (28 Jul, 29 Jul, 30 Jul). ===================================================================== IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 555 km/s at 26/2314Z. Total IMF reached 6 nT at 26/2127Z. The maximum southward component of Bz reached -4 nT at 27/2059Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 16547 pfu. ===================================================================== IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (28 Jul) and quiet levels on days two and three (29 Jul, 30 Jul). ===================================================================== III. Event probabilities 28 Jul-30 Jul Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green ===================================================================== IV. Penticton 10.7 cm Flux Observed 27 Jul 068 Predicted 28 Jul-30 Jul 068/068/072 90 Day Mean 27 Jul 076 ===================================================================== V. Geomagnetic A Indices Observed Afr/Ap 26 Jul 015/011 Estimated Afr/Ap 27 Jul 005/006 Predicted Afr/Ap 28 Jul-30 Jul 007/007-005/005-006/005 ===================================================================== VI. Geomagnetic Activity Probabilities 28 Jul-30 Jul A. Middle Latitudes Active 15/10/10 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/20 Major-severe storm 20/10/10 :NWRA: File downloaded: Thu Jul 27 22:40:34 UTC 2017Updated daily at approx. 2235 UTC
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