Viewing archive of Thursday, 23 July 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jul 23 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 205 Issued at 2200Z on 23 Jul 2020IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot region on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (24 Jul, 25 Jul, 26 Jul).
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 322 km/s at 23/1000Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 232 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (24 Jul, 26
Jul) and quiet to active levels on day two (25 Jul).
III. Event Probabilities 24 Jul to 26 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Jul 070 Predicted 24 Jul-26 Jul 070/070/070 90 Day Mean 23 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jul 005/004 Estimated Afr/Ap 23 Jul 004/005 Predicted Afr/Ap 24 Jul-26 Jul 007/008-011/012-008/008
VI. Geomagnetic Activity Probabilities 24 Jul to 26 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 35% | 15% |
| Minor storm | 01% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 20% | 50% | 20% |
All times in UTC
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