Solar Report - 07/11/2021

            By:  Gordon Rutherford

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Prepared by the U.S. Dept. of Commerce

NOAA, Space Weather Prediction Center
:Product: Forecast Discussion
:Issued: 2021 Jul 11 0030 UTC

Solar Activity

.24 hr Summary...
Solar activity was very low. New Region 2842 (N24E79, Hsx/alpha) rotated around the NE limb and was numbered. A DSF, centered near N46E54 and approximately 20 degree in length, was observed around 10/0000 UTC. SDO/AIA 304 imagery suggests the material was reabsorbed into the Sun. No Earth-directed CMEs were observed in available coronagraph imagery.

.Forecast...
Solar activity is expected to be very low on 11-13 Jul.

Energetic Particle


.24 hr Summary...
The greater than 2 MeV electron flux reached moderate levels and the greater than 10 MeV proton flux remained at background levels.

.Forecast...
The greater than 2 MeV electron flux is expected to continue at normal to moderate levels on 11-12 Jul. Moderate to high levels are likely on 13 Jul due to CH HSS influence.

The greater than 10 MeV proton flux is expected to remain at background levels.

Solar Wind



.24 hr Summary...
Solar wind parameters were slightly enhanced. Solar wind speed increased from approximately 320 km/s to near 440 km/s. Total field reached 11 nT early in the period while the Bz component was between +8/-9 nT. Phi angle was predominantly positive.

.Forecast...
By mid to late on 11 Jul, parameters are expected to become enhanced due to the arrival of a negative polarity CH HSS. HSS conditions are expected to continue through 13 Jul.

Geospace


.24 hr Summary...
The geomagnetic field was quiet with an isolate period of unsettled conditions.

.Forecast...

Mostly quiet conditions are expected through mid to late on 11 Jul. Unsettled levels are expected late on 11 Jul followed by unsettled to active levels on 12-13 Jul due to CH HSS effects.

Works Cited

https://www.solarham.net/index.htm

https://www.timeanddate.com/sun/usa/miami

https://www.timeanddate.com/sun/paraguay/asuncion

https://www.swpc.noaa.gov/products/goes-x-ray-flux

https://www.swpc.noaa.gov/products/goes-proton-flux

https://www.swpc.noaa.gov/products/real-time-solar-wind

https://www.swpc.noaa.gov/products/wsa-enlil-solar-wind-prediction

https://www.swpc.noaa.gov/products/goes-magnetometer