Viewing archive of Friday, 24 July 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jul 24 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 206 Issued at 2200Z on 24 Jul 2020IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity has been at very low levels for the past 24
hours. There is 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 (25 Jul, 26 Jul, 27 Jul).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 382 km/s at 24/1701Z. Total IMF reached 11
nT at 24/0559Z. The maximum southward component of Bz reached -9 nT at
24/0550Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 221 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (25 Jul), quiet to unsettled
levels on day two (26 Jul) and quiet levels on day three (27 Jul).
III. Event Probabilities 25 Jul to 27 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Jul 070 Predicted 25 Jul-27 Jul 070/070/070 90 Day Mean 24 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 23 Jul 004/004 Estimated Afr/Ap 24 Jul 010/010 Predicted Afr/Ap 25 Jul-27 Jul 011/012-008/008-006/005
VI. Geomagnetic Activity Probabilities 25 Jul to 27 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 15% | 10% |
| Minor storm | 15% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 20% |
| Minor storm | 25% | 25% | 20% |
| Major-severe storm | 50% | 20% | 10% |
All times in UTC
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