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HP2BWJ > SOLAR 27.11.17 13:35l 58 Lines 2087 Bytes #999 (0) @ CEAM
BID : 3677-HP2BWJ
Read: GUEST
Subj: Solar Activity
Path: IW8PGT<CX2SA<HP2BWJ
Sent: 171127/1231Z @:HP2BWJ.COL.PAN.CEAM #:3677 [Colon,Panama] FBB7.00e
From: HP2BWJ@HP2BWJ.COL.PAN.CEAM
To : SOLAR@CEAM
:Product: Forecast Discussion
:Issued: 2017 Nov 27 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Solar Activity
.24 hr Summary...
Solar activity was very low and Region 2689 (N13W21, Cao/beta) exhibited
minor decay late in the period. No Earth-directed CMEs were observed in
available coronagraph imagery.
.Forecast...
Solar activity is expected to be very low with a slight chance for
isolated C-class flare activity over the next three days (27-29 Nov).
Energetic Particle
.24 hr Summary...
The greater than 2 MeV electron flux reached moderate levels and the
greater than 10 MeV proton flux was steady at background levels
throughout the period.
.Forecast...
The greater than 2 MeV electron flux is expected to reach moderate
levels each of the next three days (27-29 Nov) and the greater than 10
MeV proton flux is expected to remain at background levels throughout
the forecast period.
Solar Wind
.24 hr Summary...
Solar wind parameters reflected a nominal solar wind regime through most
of the period with a slight enhancement observed late in the day. Solar
wind speeds were steady in the low-to-mid 300 km/s range throughout the
period with a slight increase after 26/1930 UTC. Total field strength
values increased from around 1 nT early in the period to 8 nT and Bz
varied between +6/-4 nT.
.Forecast...
Solar wind parameters are expected to be slightly enhanced over the next
three days (27-29 Nov) due to a combination of CH HSS influence and the
anticipated arrival of a CME (from 25 Nov) on day three.
Geospace
.24 hr Summary...
The geomagnetic field was quiet under a nominal solar wind regime.
.Forecast...
The effects of a CIR followed by the influence of a recurrent, negative
polarity CH HSS is expected to cause periods of active conditions on
days one and two (27-28 Nov). Continued CH HSS influence combined with
the anticipated arrival of a CME from 25 Nov is predicted to cause
isolated periods of G1 (Minor) geomagnetic storms on day three (29 Nov).
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