Here is the current forecast discussion on space weather and...

Here is the current forecast discussion on space weather and geophysical activity, issued 2017 Jul 26 1230 UTC.

Solar Activity

24 hr Summary: Solar activity remained at very low levels. Region 2668 (N03, L=311) was numbered and quickly decayed into a plage region. No Earth-directed CMEs were observed in available satellite imagery.

Forecast: Solar activity is expected to be very low on days one through three (26-28 Jul).

Energetic Particles

24 hr Summary: The greater than 2 MeV electron flux was at high levels with a peak flux of 18,800 pfu observed at 25/1515 UTC. The greater than 10 MeV proton flux climbed above normal background levels, peaking around 2 pfu at 25/1930 UTC, possibly as a result of CME activity on the far side of the Sun on 23 Jul. Nonetheless, 10 MeV protons remained well below the 10 pfu warning threshold.

Forecast: The greater than 2 MeV electron flux is expected to reach high levels over the next three days (26-28 Jul). The greater than 10 MeV proton flux is expected to remain below threshold and recover to normal background levels throughout the forecast period.

Solar Wind

24 hr Summary: Solar wind parameters reflected the continued influence of a positive polarity CH HSS. Solar wind speeds remained elevated, averaging around 600 km/s, for most of the period. Total field measurements ranged between 1 and 8 nT while the Bz component was variable between +/- 5 nT. The phi angle was in a predominately positive orientation, with a few oscillations into the negative sector throughout the period.

Forecast: Solar wind parameters are expected to trend towards background levels on day one (26 Jul) as CH HSS effects weaken. Days two and three (27-28Jul) are expected to be at near nominal levels.

Geospace

24 hr Summary: The geomagnetic field was at quiet to active levels due to continued effects from a positive polarity CH HSS.

Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (26 Jul), with a chance for isolated active levels due to continued CH HSS effects. Days two and three (27-28 Jul) are expected to be quiet as solar wind parameters settle back to nominal in the wake of the CH HSS.

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