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[Propagation+Space Weather] Today's Space Weather Forecast Discussion on

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Subject: [Propagation+Space Weather] Today's Space Weather Forecast Discussion on
From: nw7us@sunspotwatch.com
Reply-to: Practical radio-wave propagation and space weather <propagation@contesting.com>
Date: Fri, 8 Jan 2016 20:07:05 +0000
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Here is the current forecast discussion on space weather and geophysical activity, issued 2016 Jan 08 1230 UTC.

Solar Activity

24 hr Summary: Solar activity was very low. Region 2481 (S18W62, Dao/beta) underwent the most development with umbral and penumbral areal growth in both its leader and trailer spots. Region 2480 (N03E43, Dao/beat) exhibited minor dissipation near the trailer spot. A few small spots developed near center disk and will be assigned an active region number if they persist. No Earth-directed coronal mass ejections (CMEs) were observed in available coronagraph imagery.

Forecast: Solar activity is expected to be very low with a chance for C-class flares and a slight chance for R1-R2 (Minor-Moderate) radio blackouts over the next three days (08-10 Jan).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux, at the GOES-13 satellite, reached high levels with a peak flux of 5,130 pfu observed at 07/1730 UTC. The greater than 10 MeV proton flux was at background levels.

Forecast: The greater than 2 MeV electron flux is expected to be at moderate to high levels for days one through three (08-10 Jan). The greater than 10 MeV proton flux is expected to continue at background levels over the next three days (08-10 Jan).

Solar Wind

24 hr Summary: Solar wind parameters, as measured by the ACE spacecraft, indicated the persisting influence of a coronal hole high-speed stream (CH HSS). Wind speeds were elevated throughout the period ranging from around 550 - 500 km/s, with an gradual trend towards slower speeds. The total magnetic field strength (Bt) was steady between 5 - 6 nT. The Bz component was highly variable ranging from +/- 5 nT. Density remained around 1-2 p/cc. Phi angle was oriented in a predominantly positive (away from the Sun) sector. Forecast: Solar wind speeds are expected to remain slightly enhanced, with a gradual decline anticipated over the next three days (08-10 Jan) as the CH HSS persists.

Geospace

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

Forecast: The geomagnetic field is expected to be mostly quiet for the forecast period (08-10 Jan) with isolated periods of unsettled conditions on day one (08 Jan).

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Today's Space Weather Forecast Discussion - 2016 Jan 08 20:07 UTC

Live data: SunSpotWatch.com

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