Solar Weather Forecast Updated 10-26-17


K-indices of 5 or greater indicate storm-level geomagnetic activity around earth.

:Product: Forecast Discussion
:Issued: 2017 Oct 26 1230 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Solar Activity

.24 hr Summary...
Solar activity was very low. Region 2685 (S09E11, Hsx/alpha) and Region
2686 (N12E33, Hsx/alpha) both decayed slightly and were inactive. No
Earth-directed CMEs were observed in available coronagraph imagery.

Solar activity is expected to remain very low over the next three days
(26-28 Oct).

Energetic Particle

.24 hr Summary...
The greater than 2 MeV electron flux was at normal to high levels, with
a maximum flux of 1,180 pfu at 25/1805 UTC. The greater than 10 MeV
proton flux was at background values.

The greater than 2 MeV electron flux is expected to be at moderate to
high levels on day one (26 Oct) and increase to high levels on days two
and three (27-28 Oct) due to CH HSS effects. The greater than 10 MeV
proton flux is expected to continue at background levels all three days.

Solar Wind

.24 hr Summary...
Solar wind parameters were indicative of CH HSS influences. Total IMF
strength was between 8 and 10 nT. The Bz component underwent some early
pronounced and prolonged periods of southward direction. Solar wind
speed slowly decreased from near 600 to 550 km/s. The phi angle angle
was positive.

Solar wind speed is expected to remain elevated, but is likely to begin
a slow and unsteady decrease on day one (26 Oct), as the isolated,
positive polarity CH HSS begins rotating away from a fully
Earth-connected position. Solar wind speed is anticipated to continue
decreasing on days two and three (27-28 Oct) as CH HSS influences wane


.24 hr Summary...
The geomagnetic field was quiet to active storm levels due to CH HSS

The geomagnetic field is expected to be quiet to active, with a likely
period of G1 storming on day one (26 Oct) as CH HSS effects continue.
Days two and three (27-28 Oct) are expected to be quiet to unsettled,
with likely periods of active conditions as CH HSS effects wane.


  1. September 22, 2016 at 1:36 PM

    Safeness While Fishing

    *** If getting a boat to fish, wear your life jacket and be certain that your passengers wear their own, too!

    *** Use foresight when baiting and taking out hooks

    *** Do not even fish on unauthorized rivers

    *** If operating an important houseboat, be careful of carbon monoxide build-up for the boat

    *** Obey the released speedlimits and wake warnings if getting a watercraft when fishing

    *** Bring along extra safety items which includes water, flashlights, maps, together with a cellphone or radio.

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