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W7EES  > SWPC     17.04.19 18:28l 51 Lines 1694 Bytes #999 (0) @ WW
BID : 8714_W7EES
Read: GUEST
Subj: Solar-Geophysical Activity
Path: IZ3LSV<IW0QNL<JH4XSY<JE7YGF<N9PMO<VE1MPF<W9ABA<N9LYA<W7EES
Sent: 190416/2240Z 8714@W7EES.OR.USA.NOAM BPQ6.0.18


Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 106 Issued at 2200Z on 16 Apr 2019

IA.  Analysis of Solar Active Regions and Activity from 15/2100Z to
16/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB.  Solar Activity Forecast: Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (17
Apr, 18 Apr, 19 Apr).

IIA.  Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 405 km/s at 16/1026Z. Total IMF reached 6
nT at 16/0233Z. The maximum southward component of Bz reached -4 nT at
16/0144Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 1770 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on days one, two, and three (17 Apr, 18 Apr, 19
Apr).

III.  Event probabilities 17 Apr-19 Apr
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           16 Apr 074
Predicted   17 Apr-19 Apr 074/074/072
90 Day Mean        16 Apr 072

V.  Geomagnetic A Indices
Observed Afr/Ap 15 Apr  008/008
Estimated Afr/Ap 16 Apr  007/006
Predicted Afr/Ap 17 Apr-19 Apr  006/005-006/005-005/005

VI.  Geomagnetic Activity Probabilities 17 Apr-19 Apr
A.  Middle Latitudes
Active                10/15/10
Minor Storm           05/01/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           20/20/20
Major-severe storm    20/20/20






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