Viewing archive of Monday, 20 July 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jul 20 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 202 Issued at 2200Z on 20 Jul 2020IA. Analysis of Solar Active Regions and Activity from 19-2100Z to 20-2100Z 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 (21 Jul, 22 Jul, 23 Jul).
IIA. Geophysical Activity Summary 19-2100Z to 20-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 366 km/s at 20/0935Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 267 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (21 Jul, 22 Jul) and quiet to
unsettled levels on day three (23 Jul).
III. Event Probabilities 21 Jul to 23 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 20 Jul 069 Predicted 21 Jul-23 Jul 068/068/068 90 Day Mean 20 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 19 Jul 004/005 Estimated Afr/Ap 20 Jul 004/004 Predicted Afr/Ap 21 Jul-23 Jul 006/005-006/005-006/008
VI. Geomagnetic Activity Probabilities 21 Jul to 23 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 25% |
| Major-severe storm | 10% | 10% | 20% |
All times in UTC
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