Viewing archive of Wednesday, 22 July 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Jul 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 204 Issued at 2200Z on 22 Jul 2020IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z 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
on days one, two, and three (23 Jul, 24 Jul, 25 Jul).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 342 km/s at 21/2147Z. Total IMF reached 5 nT at
22/1438Z. The maximum southward component of Bz reached -4 nT at
22/1515Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 317 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (23 Jul, 24 Jul)
and quiet to active levels on day three (25 Jul).
III. Event Probabilities 23 Jul to 25 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Jul 070 Predicted 23 Jul-25 Jul 069/069/069 90 Day Mean 22 Jul 069
V. Geomagnetic A Indices
Observed Afr/Ap 21 Jul 005/004 Estimated Afr/Ap 22 Jul 004/004 Predicted Afr/Ap 23 Jul-25 Jul 006/008-007/008-011/012
VI. Geomagnetic Activity Probabilities 23 Jul to 25 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 35% |
| Minor storm | 01% | 01% | 15% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 20% | 20% | 50% |
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