Viewing archive of Saturday, 26 June 2021
Solar activity report
Report of Solar-Geophysical Activity 2021 Jun 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 177 Issued at 2200Z on 26 Jun 2021IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on days one, two, and three (27 Jun,
28 Jun, 29 Jun).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 416 km/s at 25/2257Z. Total IMF reached 5 nT at
26/1424Z. The maximum southward component of Bz reached -4 nT at
26/1313Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 223 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (27 Jun, 28 Jun, 29
Jun).
III. Event Probabilities 27 Jun to 29 Jun
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Jun 082 Predicted 27 Jun-29 Jun 082/083/084 90 Day Mean 26 Jun 076
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jun 008/009 Estimated Afr/Ap 26 Jun 004/005 Predicted Afr/Ap 27 Jun-29 Jun 006/005-006/005-005/005
VI. Geomagnetic Activity Probabilities 27 Jun to 29 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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