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W7EES > SWPC 28.04.19 18:34l 57 Lines 1977 Bytes #-2624 (0) @ WW
BID : 8880_W7EES
Read: DF7EAV DK3UZ GUEST
Subj: Solar-Geophysical Activity
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>From w7ees%w7ees.or.usa.noam@i0ojj.ampr.org Sun Apr 28 16:52:12 2019
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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 116 Issued at 2200Z on 26 Apr 2019
IA. Analysis of Solar Active Regions and Activity from 25/2100Z to
26/2100Z: 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 (27 Apr, 28 Apr, 29 Apr).
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 427 km/s at 26/0006Z. Total IMF reached 5 nT at
26/1915Z. The maximum southward component of Bz reached -4 nT at
26/1915Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 109 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (27 Apr,
28 Apr, 29 Apr).
III. Event probabilities 27 Apr-29 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 26 Apr 067
Predicted 27 Apr-29 Apr 067/067/067
90 Day Mean 26 Apr 072
V. Geomagnetic A Indices
Observed Afr/Ap 25 Apr 004/004
Estimated Afr/Ap 26 Apr 003/004
Predicted Afr/Ap 27 Apr-29 Apr 008/008-009/008-008/008
VI. Geomagnetic Activity Probabilities 27 Apr-29 Apr
A. Middle Latitudes
Active 20/25/25
Minor Storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 15/20/20
Minor Storm 25/30/30
Major-severe storm 30/25/25
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