Routine Space Environment Product (Daily)
Issued by NWS

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FXXX12 KWNP 191230

:Product: Forecast Discussion
:Issued: 2017 Oct 19 1230 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
#             Forecast Discussion
Solar Activity

.24 hr Summary...
Solar activity remained very low. No Earth-directed CMEs were observed
in coronagraph imagery.

Solar activity is expected to continue at very low levels the next three
days (19-21 Oct).

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux reached very high levels. The
greater than 10 MeV proton flux remained at background values.

The greater than 2 MeV electron flux is expected to be at moderate to
very high levels all three days (19-21 Oct) due to CH HSS influences.
The greater than 10 MeV proton flux is expected to remain at background
levels all three days.

Solar Wind

.24 hr Summary...
Solar wind parameters indicated an ambient solar wind state. Total
magnetic field strength ranged from 2-10 nT; no significant periods of
southward Bz were observed. Solar wind speeds averaged 375 km/s over the
period. Phi angle was predominantly positive.

Solar wind parameters are expected to remain at quiet conditions on
days one (19 Oct) and two (20 Oct). Solar wind parameters are forecast
to indicate the onset of a CIR in advance of a CH HSS on day three (21


.24 hr Summary...
The geomagnetic field was quiet to unsettled.

The geomagnetic field is expected to be quiet on days one and two (19-20
Oct). Quiet to unsettled conditions are likely to return on day three
(21 Oct), due to the CIR/CH HSS. is the U.S. government's official web portal to all federal, state and local government web resources and services.