Viewing archive of Saturday, 27 June 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jun 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 179 Issued at 2200Z on 27 Jun 2020IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (28 Jun, 29 Jun, 30 Jun).
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 415 km/s at 27/1937Z. Total IMF reached 11
nT at 27/1015Z. The maximum southward component of Bz reached -6 nT at
26/2233Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 198 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (28 Jun,
29 Jun, 30 Jun).
III. Event Probabilities 28 Jun to 30 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Jun 069 Predicted 28 Jun-30 Jun 068/068/068 90 Day Mean 27 Jun 069
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jun 006/006 Estimated Afr/Ap 27 Jun 006/007 Predicted Afr/Ap 28 Jun-30 Jun 009/008-007/006-008/008
VI. Geomagnetic Activity Probabilities 28 Jun to 30 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 05% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 20% | 15% | 20% |
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